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Supporting Global Numerical Optimization of Rational Functions by Generic Symbolic Convexity Tests (2010)

Neun, Winfried ; Sturm, Thomas ; Vigerske, Stefan

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Publication Date: 2020-12-11

Description: Convexity is an important property in nonlinear optimization since it allows to apply efficient local methods for finding global solutions. We propose to apply symbolic methods to prove or disprove convexity of rational functions over a polyhedral domain. Our algorithms reduce convexity questions to real quantifier elimination problems. Our methods are implemented and publicly available in the open source computer algebra system REDUCE. Our long term goal is to integrate REDUCE as a workhorse'' for symbolic computations into a numerical solver.

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2

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Fault-Tolerant and Decentralized Lease Coordination in Distributed Systems (2010)

Kolbeck, Björn ; Högqvist, Mikael ; Stender, Jan ; [et al.]

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Publication Date: 2016-06-30

Description: Applications which need exclusive access to a shared resource in distributed systems require a fault-tolerant and scalable mechanism to coordinate this exclusive access. Examples of such applications include distributed file systems and master/slave data replication. We present Flease, an algorithm for decentralized and fault-tolerant lease coordination in distributed systems. Our algorithm allows the processes competing for a resource to coordinate exclusive access through leases among themselves without a central component. The resulting system easily scales with an increasing number of nodes and resources. We prove that Flease ensures exclusive access, i.e. guarantees that there is at most one valid lease at any time.

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3

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Robust Tail Assignment (2010)

Borndörfer, Ralf ; Dovica, Ivan ; Nowak, Ivo ; [et al.]

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Publication Date: 2020-08-05

Description: We propose an efficient column generation method to minimize the probability of delay propagations along aircraft rotations. In this way, delay resistant schedules can be constructed. Computational results for large-scale real-world problems demonstrate substantial punctuality improvements. The method can be generalized to crew and integrated scheduling problems.

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4

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State Trajectory Compression for Optimal Control with Parabolic PDEs (2010)

Weiser, Martin ; Götschel, Sebastian

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Publication Date: 2022-01-07

Description: In optimal control problems with nonlinear time-dependent 3D PDEs, full 4D discretizations are usually prohibitive due to the storage requirement. For this reason gradient and quasi-Newton methods working on the reduced functional are often employed. The computation of the reduced gradient requires one solve of the state equation forward in time, and one backward solve of the adjoint equation. The state enters into the adjoint equation, again requiring the storage of a full 4D data set. We propose a lossy compression algorithm using an inexact but cheap predictor for the state data, with additional entropy coding of prediction errors. As the data is used inside a discretized, iterative algorithm, lossy coding maintaining an error bound is sufficient.

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5

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A simple mathematical model of the bovine estrous cycle: follicle development and endocrine interactions (2010)

Boer, H. Marike T. ; Stötzel, Claudia ; Röblitz, Susanna ; [et al.]

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Publication Date: 2020-03-11

Description: Bovine fertility is the subject of extensive research in animal sciences, especially because fertility of dairy cows has declined during the last decades. The regulation of estrus is controlled by the complex interplay of various organs and hormones. Mathematical modeling of the bovine estrous cycle could help in understanding the dynamics of this complex biological system. In this paper we present a mathematical model of the bovine estrous cycle that includes the processes of follicle and corpus luteum development and the key hormones that interact to control these processes. Focus in this paper is on development of the model, but also some simulation results are presented, showing that a set of equations and parameters is obtained that describes the system consistent with empirical knowledge. Even though the majority of the mechanisms that are included are only known qualitatively as stimulatory or inhibitory effects, the model surprisingly well features quantitative observations made in reality. This model of the bovine estrous cycle could be used as a basis for more elaborate models with the ability to study effects of external manipulations and genetic differences.

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6

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Rapid Learning for Binary Programs (2010)

Berthold, Timo ; Feydy, Thibaut ; Stuckey, Peter

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Publication Date: 2022-03-14

Description: Learning during search allows solvers for discrete optimization problems to remember parts of the search that they have already performed and avoid revisiting redundant parts. Learning approaches pioneered by the SAT and CP communities have been successfully incorporated into the SCIP constraint integer programming platform. In this paper we show that performing a heuristic constraint programming search during root node processing of a binary program can rapidly learn useful nogoods, bound changes, primal solutions, and branching statistics that improve the remaining IP search.

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7

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Models for Line Planning with Transfers (2010)

Borndörfer, Ralf ; Neumann, Marika

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Publication Date: 2020-08-05

Description: We propose a novel integer programming approach to transfer minimization for line planning problems in public transit. The idea is to incorporate penalties for transfers that are induced by “connection capacities” into the construction of the passenger paths. We show that such penalties can be dealt with by a combination of shortest and constrained shortest path algorithms such that the pricing problem for passenger paths can be solved efficiently. Connection capacity penalties (under)estimate the true transfer times. This error is, however, not a problem in practice. We show in a computational comparison with two standard models on a real-world scenario that our approach can be used to minimize passenger travel and transfer times for large-scale line planning problems with accurate results.

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8

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Adaptive Timestep Control for the Contact-Stabilized Newmark Method (2010)

Klapproth, Corinna ; Schiela, Anton ; Deuflhard, Peter

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Publication Date: 2016-06-09

Description: The aim of this paper is to devise an adaptive timestep control in the contact--stabilized Newmark method (CONTACX) for dynamical contact problems between two viscoelastic bodies in the framework of Signorini's condition. In order to construct a comparative scheme of higher order accuracy, we extend extrapolation techniques. This approach demands a subtle theoretical investigation of an asymptotic error expansion of the contact--stabilized Newmark scheme. On the basis of theoretical insight and numerical observations, we suggest an error estimator and a timestep selection which also cover the presence of contact. Finally, we give a numerical example.

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9

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Railway capacity auctions with dual prices (2010)

Schlechte, Thomas ; Tanner, Andreas

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Publication Date: 2020-08-05

Description: Railway scheduling is based on the principle of the construction of a conflict-free timetable. This leads to a strict definition of capacity: in contrast with road transportation, it can be said in advance whether a given railway infrastructure can accommodate - at least in theory - a certain set of train requests. Consequently, auctions for railway capacity are modeled as auctions of discrete goods -- the train slots. We present estimates for the efficiency gain that may be generated by slot auctioning in comparison with list price allocation. We introduce a new class of allocation and auction problems, the feasible assignment problem, that is a proper generalization of the well-known combinatorial auction problem. The feasible assignment class was designed to cover the needs for an auction mechanism for railway slot auctions, but is of interest in its own right. As a practical instance to state and solve the railway slot allocation problem, we present an integer programming formulation, briefly the ACP, which turns out to be an instance of the feasible assignment problem and whose dual problem yields prices that can be applied to define a useful activity rule for the linearized version of the Ausubel Milgrom Proxy auction. We perform a simulation aiming to measure the impact on efficiency and convergence rate.

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10

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Solving Optimal Control Problems with the Kaskade 7 Finite Element Toolbox (2010)

Götschel, Sebastian ; Weiser, Martin ; Schiela, Anton

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Publication Date: 2022-01-07

Description: This paper presents concepts and implementation of the finite element toolbox Kaskade 7, a flexible C++ code for solving elliptic and parabolic PDE systems. Issues such as problem formulation, assembly and adaptivity are discussed at the example of optimal control problems. Trajectory compression for parabolic optimization problems is considered as a case study.

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11

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Aggregation Methods for Railway Networks (2010)

Borndörfer, Ralf ; Erol, Berkan ; Graffagnino, Thomas ; [et al.]

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Publication Date: 2020-08-05

Description: In this paper a bottom-up approach of automatic simplification of a railway network is presented. Starting from a very detailed, microscopic level, as it is used in railway simulation, the network is transformed by an algorithm to a less detailed level (macroscopic network), that is sufficient for long-term planning and optimization. In addition running and headway times are rounded to a pre-chosen time discretization by a special cumulative method, which we will present and analyse in this paper. After the transformation we fill the network with given train requests to compute an optimal slot allocation. Then the optimized schedule is re-transformed into the microscopic level and can be simulated without any conflicts occuring between the slots. The algorithm is used to transform the network of the very dense Simplon corridor between Swiss and Italy. With our aggregation it is possible for the first time to generate a profit maximal and conflict free timetable for the corridor across a day by a simultaneously optimization run.

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12

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Merging solutions of non-linear algebraic systems (2010)

Wolf, Thomas

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Publication Date: 2020-12-11

Description: In solving large polynomial algebraic systems that are too big for standard Gröbner basis techniques one way to make progress is to introduce case distinctions. This divide and conquer technique can be beneficial if the algorithms and computer programs know how to take advantage of inequalities. A further hurdle is the form of the resulting general solutions which often have unnecessarily many branches. In this paper we discuss a procedure to merge solutions by dropping inequalities which are associated with them and, if necessary, by re-parametrizing solutions. In the appendix the usefulness of the procedure is demonstrated in the classification of quadratic Hamiltonians with a Lie-Poisson bracket $e(3)$. This application required the solution of algebraic systems with over 200 unknowns, 450 equations and between 5000 and 9000 terms.

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13

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A Dynamical Systems Approach for Static Evaluation in Go (2010)

Wolf, Thomas

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Publication Date: 2020-12-11

Description: In the paper arguments are given why the concept of static evaluation (SE) has the potential to be a useful extension to Monte Carlo tree search. A new concept of modeling SE through a dynamical system is introduced and strengths and weaknesses are discussed. The general suitability of this approach is demonstrated. A Remark: Among users of the Internet Go server KGS the abbreviation SE is used for 'Score Estimator'. Although different from 'Static Evaluation' a score estimator is easily obtained from static evaluation by adding up probabilities of chains to be alive at the end of the game or points to be owned by White or Black

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14

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Classification of integrable quadratic Hamiltonians on e(3) (2010)

Wolf, Thomas ; Efimovskaya, Olya V.

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Publication Date: 2020-12-11

Description: Linear Poisson brackets on e(3) typical of rigid body dynamics are considered. All quadratic Hamiltonians of Kowalevski type having additional first integral of fourth degree are found. Quantum analogs of these Hamiltonians are listed.

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15

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Classification of integrable super-systems using the SsTools environment (2010)

Kiselev, A. V. ; Wolf, Thomas

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Publication Date: 2020-12-11

Description: A classification problem is proposed for supersymmetric %scaling\/-\/in\-va\-ri\-ant evolutionary PDE that satisfy the assumptions of nonlinearity, nondegeneracy, and homogeneity. Four classes of nonlinear coupled boson\/-\/fermion systems are discovered under the weighting assumption $|f|=|b|=|D_t|=\oh$. The syntax of the \Reduce\ package \SsTools, which was used for intermediate computations, and the applicability of its procedures to the calculus of super\/-\/PDE are described.

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16

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N=2 supersymmetric a=4-KdV hierarchy derived via Gardner's deformation of Kaup-Boussinesq equation (2010)

Hussin, V. ; Kiselev, A. V. ; Krutov, A.O. ; [et al.]

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Publication Date: 2020-12-11

Description: We consider the problem of constructing Gardner's deformations for the $N{=}2$ supersymmetric $a{=}4$--\/Korteweg\/--\/de Vries equation; such deformations yield recurrence relations between the super\/-\/Hamiltonians of the hierarchy. We prove the non\/-\/existence %P.~Mathieu's Open problem on constructing for of supersymmetry\/-\/invariant %Gardner's deformations that %solutions, retract to Gardner's formulas for the KdV equation %whenever it is assumed that, under the %respective component reduction. % in the $N{=}2$ super\/-\/field. the solutions . At the same time, we propose a two\/-\/step scheme for the recursive production of the integrals of motion for the $N{=}2$,\ $a{=}4$--\/SKdV. First, we find a new Gardner's deformation of the Kaup\/--\/Boussinesq equation, which is contained in the bosonic limit of the super\/-\/%$N{=}2$,\ $a{=}4$--\/SKdV hierarchy. This yields the recurrence relation between the Hamiltonians of the limit, whence we determine the bosonic super\/- /Hamiltonians of the full $N{=}2$, $a{=}4$--\/SKdV hierarchy.

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17

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The Quickest Path to the Goal (2010)

Borndörfer, Ralf ; Grötschel, Martin ; Löbel, Andreas

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Publication Date: 2020-08-05

Description: We provide an introduction into the mathematics of and with paths. Not on the shortest, but hopefully on an entertaining path!

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18

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Linienoptimierung - reif für die Praxis? (2010)

Borndörfer, Ralf ; Neumann, Marika

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Publication Date: 2020-08-05

Description: Wir stellen in dieser Arbeit ein mathematisches Optimierungsmodell zur Bestimmung eines optimalen Linienplans vor, das sowohl die Fahrzeiten und die Anzahl der Umstiege berücksichtigt als auch die Kosten des Liniennetzes. Dieses Modell deckt wichtige praktische Anforderungen ab, die in einem gemeinsamen Projekt mit den Verkehrsbetrieben in Potsdam (ViP) formuliert wurden. In diesem Projekt wurde der Linienplan 2010 für Potsdam entwickelt. Unsere Berechnungen zeigen, dass die mathematische Optimierung in nichts einer "Handplanung" des Liniennetzes nachsteht. Im Gegenteil, mit Hilfe des Optimierungsprogramms ist es möglich, durch Veränderung der Parameter mehrere verschiedene Szenarien zu berechnen, miteinander zu vergleichen und Aussagen über minimale Kosten und Fahrzeiten zu machen.

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Language: German

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19

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Positions in the Game of Go as Complex Systems (2010)

Wolf, Thomas

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Publication Date: 2020-12-11

Description: The paper gathers evidence showing different dimensions of the game of Go: the continuous and discrete nature of the game and different types of relations between state variables happening on ultra local, local, regional, and global scales. Based on these observations a new continuous local model for describing a board position is introduced. This includes the identification of the basic variables describing a board position and the formulation and solution of a dynamical system for their computation. To be usable as a static evaluation function for a game playing program at least group-wide (regional)aspects will have to be incorporated.

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20

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Railway Track Allocation by Rapid Branching (2010)

Borndörfer, Ralf ; Schlechte, Thomas ; Weider, Steffen

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Publication Date: 2020-08-05

Description: The track allocation problem, also known as train routing problem or train timetabling problem, is to find a conflict-free set of train routes of maximum value in a railway network. Although it can be modeled as a standard path packing problem, instances of sizes relevant for real-world railway applications could not be solved up to now. We propose a rapid branching column generation approach that integrates the solution of the LP relaxation of a path coupling formulation of the problem with a special rounding heuristic. The approach is based on and exploits special properties of the bundle method for the approximate solution of convex piecewise linear functions. Computational results for difficult instances of the benchmark library TTPLIB are reported.

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21

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Optimizing the Simplon Railway Corridor (2010)

Borndörfer, Ralf ; Erol, Berkan ; Graffagnino, Thomas ; [et al.]

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Publication Date: 2020-08-05

Description: This paper presents a case study on a railway timetable optimization for the very dense Simplon corridor, a major railway connection in the Alps between Switzerland and Italy. Starting from a detailed microscopic network as it is used in railway simulation, the data is transformed by an automatic procedure to a less detailed macroscopic network, that is sufficient for the purpose of capacity planning and amenable to state-of-the-art integer programming optimization methods. In this way, the macroscopic railway network is saturated with trains. Finally, the corresponding timetable is re-transformed to the microscopic level in such a way that it can be operated without any conflicts among the slots. Using this integer programming based micro-macro aggregation-disaggregation approach, it becomes for the first time possible to generate a profit maximal and conflict free timetable for the complete Simplon corridor over an entire day by a simultaneous optimization of all trains requests. This also allows to to undertake a sensitivity analysis of various problem parameters.

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22

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Analysis of a multi-scale asymptotic model for internal gravity waves in a moist atmosphere (2010)

Ruprecht, Daniel

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Publication Date: 2016-06-09

Description: The thesis presents the analysis of a reduced model for modulation of internal gravity waves by deep convective clouds. The starting point for the derivation are conservation laws for mass, momentum and energy coupled with a bulk micro-physics model describing the evolution of mixing ratios of water vapor, cloud water and rain water. A reduced model for the identified scales of the regime is derived, using multi-scale asymptotics. The closure of the model employs conditional averaging over the horizontal scale of the convective clouds. The resulting reduced model is an extension of the anelastic equations, linearized around a constant background state, which are well-known from meteorology. The closure of the model is achieved purely by analytical means and involves no additional physically motivated assumptions. The essential new parameter arising from the coupling to a micro-physics model is the area fraction of saturated regions on the horizontal scale of the convective clouds. It turns out that this parameter is constant on the employed short timescale. Hence the clouds constitute a constant background, modulating the characteristics of propagation of internal waves. The model is then investigated by analytical as well as numerical means. Important results are, among others, that in the model moisture (i) inhibits propagation of internal waves by reducing the modulus of the group velocity, (ii) reduces the angle between the propagation direction of a wave-packet and the horizontal, (iii) causes critical layers and (iv) introduces a maximum horizontal wavelength beyond which waves are no longer propagating but become evanescent. The investigated examples of orographically generated gravity waves also feature a significant reduction of vertical momentum flux by moisture. The model is extended by assuming systematically small under-saturation, that is saturation at leading order. The closure is similar to the original case but requires additional assumptions. The saturated area fraction in the obtained model is no longer constant but now depends nonlinearly on vertical displacement and thus on vertical velocity.

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Type: doctoralthesis , doc-type:doctoralThesis

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23

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A Constraint Integer Programming Approach for Resource-Constrained Project Scheduling (2010)

Berthold, Timo ; Heinz, Stefan ; Lübbecke, Marco ; [et al.]

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Publication Date: 2022-03-14

Description: We propose a hybrid approach for solving the resource-constrained project scheduling problem which is an extremely hard to solve combinatorial optimization problem of practical relevance. Jobs have to be scheduled on (renewable) resources subject to precedence constraints such that the resource capacities are never exceeded and the latest completion time of all jobs is minimized. The problem has challenged researchers from different communities, such as integer programming (IP), constraint programming (CP), and satisfiability testing (SAT). Still, there are instances with 60 jobs which have not been solved for many years. The currently best known approach, lazyFD, is a hybrid between CP and SAT techniques. In this paper we propose an even stronger hybridization by integrating all the three areas, IP, CP, and SAT, into a single branch-and-bound scheme. We show that lower bounds from the linear relaxation of the IP formulation and conflict analysis are key ingredients for pruning the search tree. First computational experiments show very promising results. For five instances of the well-known PSPLIB we report an improvement of lower bounds. Our implementation is generic, thus it can be potentially applied to similar problems as well.

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24

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Coupling Meshbased and Meshfree Methods by a Transfer Operator Approach (2010)

Fackeldey, Konstantin

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Publication Date: 2023-11-03

Description: In contrast to the well known meshbased methods like the finite element method, meshfree methods do not rely on a mesh. However besides their great applicability, meshfree methods are rather time consuming. Thus, it seems favorable to combine both methods, by using meshfree methods only in a small part of the domain, where a mesh is disadvantageous, and a meshbased method for the rest of the domain. We motivate, that this coupling between the two simulation techniques can be considered as saddle point problem and show the stability of this coupling. Thereby a novel transfer operator is introduced, which interacts in the transition zone, where both methods coexist.

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25

Electronic Resource

Masthead (1999)

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999)

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710301

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26

Electronic Resource

Nanofiltrationsmembranen für Trennprobleme in organischen Lösungen (1999)

Schmidt, Matthias ; Mirza, Sohail ; Schubert, Rolf ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 199-206

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: Nanofiltration Membranes for Separation Problems in Organic Solutions.Nanofiltration based on rejection and flux features intermediate between those ultrafiltration and reverse osmosis is one of the technically and scientifically interesting membrane processes with a great future. Moreover, most commercial available nanofiltration membranes are only suitable for separation processes in aqueous solutions. A small number of composite membranes with a highly cross-linked selective layer show a technically interesting resistance towards organic solvents, such as ketones, esters, ethers or alcohols. The present article describes such nanofiltration membranes used for separation of low molecular weight chemical compounds from polar or nonpolar solvents, but also for the removal of organic compound from aqueous solutions. Methods of manufacturing and modifying such solvent stable composite membranes are shown, as are the conditioning of membranes and examples of industrial application.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710304

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27

Electronic Resource

Seitliche Reaktandenzufuhr in großmaßstäblichen Wirbelschichtreaktoren - Modellierung am Beispiel der Sekundärlufteinblasung in WirbelschichtfeuerungenVorgetragen von T. KNÖBIG anläßlich der internen Arbeitssitzung des Fachausschusses „Energieverfahrenstechnik“, 20./22. April 1998 in Würzburg. (1999)

Knöbig, Thomas ; Werther, Joachim

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 219-222

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710307

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28

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Numerische Simulation der Strömungsvorgänge und des Trennverhaltens von Suspensionen im freien Einzelspalt eines TellerseparatorsVortrag auf der GVC-Tagung „Mechanische Flüssigkeitsabtrennung“, 25. März 1998 in Freiburg. (1999)

Janoske, Uwe ; Piesche, Manfred

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 249-253

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710315

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CAPE in der Praxis - Möglichkeiten und Grenzen aus NutzersichtVortrag anläßlich der GVC-Jahrestagung, 24./26. Sept. 1997 in Dresden. (1999)

Lohe, B. ; Bessling, B. ; Schoenmakers, H. ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 323-327

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: CAPE in Practice - Opportunities and Limits from the User's Point of View.CAPE tools comprise computer based tools and methods for the design of chemical processes - the use of which is indispensable in modern chemical engineering. This paper discusses the degree to which CAPE is already applied and whether limitations exist. Within BASF, the CAPE framework is provided by the “ProcessNet”, which integrates numerous simulation and design tools. The engineer relies alternatively on inhouse or commercial software. The advantage of CAPE in terms of efficiency depends not only on complex programs, but also to a large extent on the multiple use of intermediate data and program modules. The ProcessNet also features a hierarchical file structure to support the engineer's desktop management. The CAPE environment is being continuously improved. The main constraints on CAPE today are, for example, the missing link between fluid and solid applications, a deficit in data management and the poor state of development of advanced or special programs. The progress of research in this area is followed with great interest.

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URL: http://dx.doi.org/10.1002/cite.330710403

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Einfluß der Fluidisierungsbedingungen auf Abscheidung und Agglomeration von Aerosolen beim Durchgang durch Wirbelschichten (1999)

Fleck, Sabine ; Riebel, Ulrich

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 361-364

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710409

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Modifizierung der Partikelwechselwirkung durch Beschichtung mit grenzflächenaktiven ReagenzienÜberarbeiteter Vortrag anläßlich der Sitzung des GVC-Fachausschusses „Grenzflächen“, 23. März 1998 in Freiburg. (1999)

Wolf, Regine ; Hoffmann, Bernd ; Wahl, Beate ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 372-376

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710412

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Untersuchung zur Hydrodynamik und Kinetik an KATAPAK-Packungen (1999)

Brehm, Axel ; Antons, Uwe ; Bekurdts, Alexander

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 388-392

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 3 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710416

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Konzentrationsprogrammierte Reaktionstechnik - Eine Methode zur Beurteilung des Anwendungspotentials instationärer Prozeßführungen bei PartialoxidationenTeil eines Vortrags anläßlich der 3. Merseburger Fachtagung „Automatisierung, Meßmethoden und Experimente in der chemischen Reaktionstechnik“, 6. Nov. 1997. (1999)

Böhling, Ralf ; Drochner, Alfons ; Fehlings, Michael ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 226-230

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710309

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Zur Kopplung von Impuls- und Stofftransport an fluiden Phasengrenzen - Teil 1: TheorieVortrag (gekürzt) anläßlich der GVC-Jahres-tagung, 24./26. Sept. 1997 in Dresden. (1999)

Tokarz, Alexander ; Millies, Marco ; Mewes, Dieter

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 472-477

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

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URL: http://dx.doi.org/10.1002/cite.330710510

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VerGrößerung der spezifischen Oberfläche von Kristallen durch gezieltes Nutzen von PseudopolymorphenErweiterte Fassung eines Vortrags von ST. NORDHOFF (Vortragender) und J. ULRICH anläßlich der internen Arbeitssitzung des GVC-Fachauschusses „Kristallisation“, 2./6. März 1998 in Aachen. (1999)

Nordhoff, Stefan ; Dümpelmann, Ralf ; Wagner, Gerhard ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 487-490

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

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URL: http://dx.doi.org/10.1002/cite.330710514

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Einfluß der Dimerisierung von Isobuten auf die MTBE-Produktion bei der reaktiven Destillation (1999)

Gravekarstens, Manfred ; Hoffmann, Ulrich

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 500-503

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710518

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Chemical Reaction and Reactor Design (1999)

Chuang, Steven

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 518-518

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710523

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Processing of Particulate Solids (1999)

Schwedes, I.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 520-520

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710526

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GVC-Fachausschuß „Prozeß-und Anlagentechnik“ (1999)

Bathen, Dieter

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 516-517

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: Die Sitzung des GVC-Fachausschusses „Prozeß- und Anlagentechnik“ fand am 25. und 26. Oktober 1998 in Kleve statt. Gemeinsam mit dem DECHEMA-Ausschuß „Computeranwendungen in der chemischen Industrie“ und dem GVC-Arbeitskreis „Produktionslogistik“ wurden aktuelle Problemstellungen aus der Industrie und neue Problemlösungsansätze aus der Forschung präsentiert und diskutiert.In seiner kurzen Begrüßung erläuterte der Ausschußvorsitzende H. SCHMIDT-TRAUB einerseits die Zielsetzung der Tagung und verdeutlichte andererseits den Teilnehmern die Ursachen und Konsequenzen des drastischen Rückgangs der Anfängerzahlen in den verfahrenstechnischen Studiengängen, was für Gesprächsstoff in den Pausen sorgte. Die anschließende Tagung umfaßte insgesamt 35 Vorträge in zehn Schwerpunktthemen.

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URL: http://dx.doi.org/10.1002/cite.330710522

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Abwasser (1999)

Frimmel, F. H.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 523-524

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710532

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Aktuelles (1999)

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 531-553

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 3 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710602

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Abtrennen von Wertstoffen aus BauschuttVortrag anläßlich der GVC-Jahrestagung, 30. Sept./2. Okt. 1998 in Freiburg. (1999)

Tomas, Jirgen ; Gröger, Torsten ; Küchler, Christoph ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 637-642

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710619

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Wärmeintegration bei Batch-Prozessen (1999)

Uhlenbruck, Stefan ; Vogel, Rainer ; Lucas, Klaus

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 700-704

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 3 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710710

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Rheologische Eigenschaften von wäßrigen nicht-ionischen Tensidlösungen in stationärer ScherströmungVortrag anläßlich der Sitzung des GVC-Fachausschusses „Rheologie“, 2./6. März 1998 in Aachen. (1999)

Teipel, Ulrich ; Aksel, Nuri

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 720-725

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 7 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710715

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Systematische vergleichende Kostenanalyse von destillativen und extraktiven Stofftrennverfahren (1999)

Glanz, Stephan ; Blaß, Eckhart ; Stichlmair, Johann ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 669-673

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Notes: Systematic Comparative Cost Analysis of Separation Processes Based on Distillation and Extraction.Rectification is the most commonly used but not always the most economical method of thermal separation. Above all in the case of closely boiling mixtures it becomes very demanding with regard to both equipment and energy. It is often possible to replace rectification by another energetically more favourable separation process such as liquid-liquid distillation, decantation, or absorption. Owing to the resulting wealth of possibilities for the separation of a mixture it is desirable to gain further knowledge about the economics of individual processes and about the selection of suitable entrainers under given conditions.

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URL: http://dx.doi.org/10.1002/cite.330710703

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Die Hydrolyse von HCN als Zwischenschritt bei der Stickoxidbildung (1999)

Schäfer, S. ; Bonn, B.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 613-618

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 8 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710614

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Oxidische Schichten auf EisenChrom-Nickel-Werkstoffen und ihre chemischen Eigenschaften (1999)

Koppe, Jürgen ; Lausch, Hart Mut ; Heubner, Ulrich ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 609-612

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 6 Tab.

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URL: http://dx.doi.org/10.1002/cite.330710613

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Verfahren zum Abbau von organischen Schadstoffen durch indirekte Elektrooxidation (1999)

Galla, Ulrich ; Kritzer, Peter ; Bringmann, Jan ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 628-633

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Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 7 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710617

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Kontinuierliche Dosierung und Dispergierung feindisperser, kohäsiver Feststoffe mit einem neuartigen Staubdosierer (1999)

Dittler, Achim ; Kasper, Gerhard

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 685-688

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Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710706

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Numerische Untersuchung der Strömungsverhältnisse im Innern von Hohlkegeldüsen mit Leitapparat (1999)

Nonnenmacher, Stefan ; Piesche, Manfred

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 688-692

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Source: Wiley InterScience Backfile Collection 1832-2000

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Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710707

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Kinetik der Umesterung von Ethanol und Butylacetat - Ein Modellsystem für die Reaktivrektifikation (1999)

Schmidt, Jörg ; Reusch, Dieter ; Elgeti, Klaus ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 704-708

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710711

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BRICK - Ein 1-D-Simulationstool für Mehrphasenströmungen in Behältern (1999)

Lucas, Dirk

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 713-717

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Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 3 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710713

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Vergleichende Untersuchungen zur nichtadiabaten Absorption im Film- und Blasen-KolbenregimeÜberarbeitete Fassung eines Postervortrages von U. HELBING anläßlich der GVC-Jahrestagung, 30. Sept./02. Okt. 1998 in Freiburg. (1999)

Helbing, Uwe ; Würfel, Reinhard ; Fratzscher, Wolfgang

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 844-849

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 7 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710813

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Möglichkeiten zur Vorausberechnung von Verweilzeitverteilungen (1999)

Platzer, Bernd ; Steffani, Katharina ; GroßE, Stefan

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 795-807

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Source: Wiley InterScience Backfile Collection 1832-2000

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Notes: Possible Approaches to the Prediction of Residence Time Distributions Although the experimental determination of residence time distributions is based on a black-box method, the signal shape also permits certain conclusions to be drawn about the internal conditions. However, if it is to provide a sole basis for elucidating process steps in a plant this method is soon overtaxed. A deeper theoretical penetration of the pertinent transport processes opens up the way ahead. However, since residence time distributions are based on mass-oriented considerations, substantial advances in fluid mechanics, where location-based considerations predominate, have not led to improved predictive capability. Yet the computer power now available offers a variety of ways of calculating residence-time distributions for a known flow profile, thus permitting a step in the direction of better predictability of residence time distributions. This article presents utilisable methods and evaluates them with regard to their demands on time and effort and their predictive power. Problems arising in connection with the models are discussed.

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Dreiphasenrektifikation in Packungskolonnen (1999)

Siegert, Markus ; Stichlmair, Johann ; Repke, Jens-Uwe ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 819-823

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

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URL: http://dx.doi.org/10.1002/cite.330710807

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Einfluß von Polyelektrolytkomplexschichten auf Trennleistung und Foulingverhalten oberflächen- und bulkmodifizierter MembranenPosterbeitrag anläßlich des 7. Aachener Membran Kolloquiums, 9./11. März 1999 in Aachen. (1999)

Meier-Haack, Jochen ; Rieser, Theresia ; Lenk, Wolfgang ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 839-844

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710812

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In-situ-Bestimmung momentaner Reaktionsraten von Brennstoffpartikeln durch simultane Messung von Partikeltemperatur und GrößeÜberarbeitete und ergänzte Version des Vortrages von T. REICHELT anläßlich der GVC-Jahrestagung, 30. Sept./2. Okt. 1998 in Freiburg. (1999)

Reichelt, Tobias ; Spliethoff, Hartmut ; Hein, Klaus R. G.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 857-861

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Source: Wiley InterScience Backfile Collection 1832-2000

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URL: http://dx.doi.org/10.1002/cite.330710816

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Parallelisierte Synthese und schnelle katalytische Testung von Katalysatorbibliotheken für Oxidationsreaktionen (1999)

Rodemerck, Uwe ; Ignaszewski, (Fh) Peter ; Lucas, (Fh) Martin ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 873-877

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Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Additional Material: 4 Ill.

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URL: http://dx.doi.org/10.1002/cite.330710820

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GVC-Fachausschuß „Gasreinigung“Berichterstatter: Dipl.-Ing. ACHIM DITTLER, Institut für Mechanische Verfahrenstechnik und Mechanik, Universität Karlsruhe (TH), D-76128 Karlsruhe, und Priv.-Doz. Dr.-Ing. EBERHARD SCHMIDT, DEGUSSA-HÜLS AG, D-63403 Hanau (1999)

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 882-883

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Notes: Die diesjährige interne Sitzung des GVC-Fachausschusses „Gasreinigung“ wurde zusammen mit der Arbeitssitzung des Fachausschusses „Energieverfahrenstechnik“ am 19. und 20. April im Tagungszentrum „Festung Marienburg“ in Würzburg abgehalten.

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Lime und Limestone. J.A.H. Oates Wiley-VCH, Weinheim 1998, 455 Seiten, 79 Abbildungen, 86 Tabellen, geb. DM 298,- ISBN 3-527-29527-5 (1999)

Oppermann, B. ; Esser, P.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 889-889

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124. Bestimmung von Trennschärfegraden bei Klassierern zum naßmechanischen Recycling von Betonrestmassen (1999)

Ressel, O. ; Stark, U. ; Müller, A.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1024-1025

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128. Echtzeit-Standard-Infrastrukturkonzept für die Integration von Daten, Applikationen und Präsentationen (1999)

Schneider, Herbert

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1026-1026

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URL: http://dx.doi.org/10.1002/cite.3307109132

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63

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132. Simulationsbasierte intelligente Optimierung in der Prozeßindustrie (1999)

Krug, W. ; Liebelt, J.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1029-1029

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140. Strukturwandel im Anlagenbau: Von der Projektierung bis zur Instandhaltung (1999)

Mohrenz, H.-J. ; Bornträger, Carsten

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1035-1035

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URL: http://dx.doi.org/10.1002/cite.3307109144

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108. Trocknung und Pyrolyse von Holz - Flüssigkeits- und Gastransport im porösen Partikel (1999)

Wolfinger, Martin Georg ; Steiner, Gerhard ; Rath, Johannes ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1013-1014

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URL: http://dx.doi.org/10.1002/cite.3307109112

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113. Homogenisierung des Feeds und Verbesserung des Strömungsprofils im Reaktoreintritt von Salpetersäureanlagen durch neuartige Strömungseinbauten (1999)

Schneider, Gottlieb

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1016-1017

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URL: http://dx.doi.org/10.1002/cite.3307109117

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152. Fluoreszenzsondentechnik zum Stoffübergang in der Reaktivextraktion (1999)

Mörters, M. ; Bart, H.-J.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1043-1043

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URL: http://dx.doi.org/10.1002/cite.3307109156

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155. Aufarbeitung von Kühlschmierstoffen im Festbett-Umlaufreaktor (1999)

Wisst, S. ; Trick, I. ; Sternad, W. ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1045-1045

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URL: http://dx.doi.org/10.1002/cite.3307109159

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156. NF und RO zur Kreislaufführung von Laugen und Nachspülwässern in Flaschenwaschmaschinen (1999)

Rögener, F. ; Mavrov, V. ; Chmiel, H.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1046-1046

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URL: http://dx.doi.org/10.1002/cite.3307109160

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159. Absorption von NOX-Gasen in wäßrigen Lösungen mit Hilfe von H2O2 (1999)

Sowade, T. ; Ham, R. ; Elgeti, K.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1047-1047

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URL: http://dx.doi.org/10.1002/cite.3307109163

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164. Abgasnachbehandlung durch Reaktivfiltration (1999)

ClaußEn, Michael ; Gärtner, Peter

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1050-1050

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URL: http://dx.doi.org/10.1002/cite.3307109168

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134. Zurückgezogen (1999)

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1030-1030

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URL: http://dx.doi.org/10.1002/cite.3307109138

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137. Simulation der Strömung und des Wärmeaustauschs in und um Katalysatorformkörpers (1999)

Mindt, H.-W. ; Megahed, M.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1030-1031

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URL: http://dx.doi.org/10.1002/cite.3307109141

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172. Mobilisierung und Austrag von Mineralölkohlenwasserstoffen bei der In-situ-Bodensanierung unter Anwendung von HF-Energie und Bodenluftabsaugung (1999)

Müller, S. ; Struppe, H. G. ; Roland, U.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1055-1056

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URL: http://dx.doi.org/10.1002/cite.3307109176

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174. Thermowaage mit intelligenter Gasdosiereinheit zur reaktionstechnischen Untersuchung heterogener Katalysatoren (1999)

Schnitzlein, K. ; Otto, O.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1056-1056

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URL: http://dx.doi.org/10.1002/cite.3307109178

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179. Anwendung von Röntgen-Computertomographie bei Zweiphasenströmungen (1999)

Simon, M. ; Cherdron, W. ; Cacuci, H. C. D. G.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1060-1060

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URL: http://dx.doi.org/10.1002/cite.3307109183

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182. Strömungs- und Transportvorgänge in Rechteckkanälen mit gekreuzten Gitterstrukturen (1999)

Gschwind, P. ; Kottke, V. ; Zimmerer, C. C.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1062-1063

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URL: http://dx.doi.org/10.1002/cite.3307109186

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189. Ingenieure in Forschung und Entwicklung (1999)

Plöcker, Ulf ; Bode, Henning ; Schönborn, J.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1068-1069

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URL: http://dx.doi.org/10.1002/cite.3307109193

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190. Alternative Möglichkeiten zur Studienfinanzierung (1999)

Bauer, Michael

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1069-1069

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URL: http://dx.doi.org/10.1002/cite.3307109194

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80

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194. Datenbankbasierte Informationssysteme zur Unterstützung von Verfahrensentwicklung, -bearbeitung und -dokumentation (1999)

Neef, Oliver

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 1070-1071

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URL: http://dx.doi.org/10.1002/cite.3307109198

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Masthead (1999)

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999)

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URL: http://dx.doi.org/10.1002/cite.330710901

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1. Kaltes Plasma zur Oxidation von flüchtigen Kohlenwasserstoffen (1999)

Prölss, Julian ; Modigell, Michael

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 925-926

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URL: http://dx.doi.org/10.1002/cite.330710905

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5. Manufacture of Nanoparticles (1999)

Pratsinis, S. E.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 929-930

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URL: http://dx.doi.org/10.1002/cite.330710909

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84

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8. Nano-Prozeßtechnologie für die Herstellung von halbleitenden Nano-Partikeln (1999)

Kruis, F. E. ; Fissan, H.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 932-932

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URL: http://dx.doi.org/10.1002/cite.330710912

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12. Korrelation zwischen Reaktivität und Oberflächenzustand von gasgetragenen Nickel-Nanopartikeln am Beispiel der Methanbildung (1999)

Weber, Alfred P. ; Seipenbusch, Martin ; Kasper, Gerhard

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 936-937

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URL: http://dx.doi.org/10.1002/cite.330710916

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16. Systematische Prozeßsynthese mit Hilfe mathematischer Methoden (1999)

Brusis, D. ; Frey, Th. ; Stichlmair, J. ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 940-941

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URL: http://dx.doi.org/10.1002/cite.330710920

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20. Einflußfaktoren bei der Modellierung der Flüssig/Flüssig-Extraktion basierend auf Laborversuchen (1999)

Henschke, M. ; Pfennig, A.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 944-944

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URL: http://dx.doi.org/10.1002/cite.330710924

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9. Partikelpopulationsbilanzen: Numerische Simulation der Partikelsynthese (1999)

Mühlenweg, Heike ; Gutsch, Andreas ; Schild, Andreas ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 932-933

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URL: http://dx.doi.org/10.1002/cite.330710913

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28. Direkte numerische Simulation des Mischverhaltens in zweidimensionalen turbulenten Strömungen (1999)

Gerlinger, W. ; Schneider, K. ; Bockhorn, H.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 950-951

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URL: http://dx.doi.org/10.1002/cite.330710932

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33. Einsatz von CFD zur Analyse biotechnischer Stoffumsetzungen in ein- und zweiphasig durchströmten Rührkesselreaktoren (1999)

Schmalzriedt, Sven ; Reuss, Matthias

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 954-955

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URL: http://dx.doi.org/10.1002/cite.330710937

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31. CFD-Simulationen von Blasensäulen und Schlaufenapparaten im industriellen Maßstab (1999)

Pfleger, D. ; Gilbert, N. ; Wagner, H.-G.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 952-953

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URL: http://dx.doi.org/10.1002/cite.330710935

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37. Numerische Strömungsuntersuchung in regelmäßigen kompressiblen Haufwerken und deren Validierung (1999)

Hövekamp, Tobias ; Feigl, Kathleen ; Windhab, Erich

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 956-957

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URL: http://dx.doi.org/10.1002/cite.330710941

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41. Betriebsverhalten von Naturumlaufverdampfern (1999)

Arneth, S. ; Stichlmair, J.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 960-961

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URL: http://dx.doi.org/10.1002/cite.330710945

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94

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14. Erzeugung von Nano-Partikeln in Flammenreaktoren und deren Charakterisierung (1999)

Roth, P. ; Janzen, C.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 938-939

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710918

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49. Modellbasierte Präparationstechnik für disperse Systeme (1999)

Heffels, Camiel ; Polke, Reinhard ; Schäfer, Michael ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 966-967

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710953

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96

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53. Monolithkatalysatoren für die katalytische Nachverbrennung von chlorierten Kohlenwasserstoffen (1999)

KießLing, D. ; Schneider, R. ; Stephan, K. ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 970-971

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710957

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97

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26. Methodenentwicklung zur effizienten Optimierung von wäßrigen Zwei-Phasen-Systemen zur Aufarbeitung von Proteinen (1999)

Selber, Klaus ; Nellen, Franz ; Thömmes, Jörg ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 949-949

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710930

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98

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39. Messung und Simulation der Fluidströmung in gerührten Fest/Flüssig-Suspensionen (1999)

Kohnen, C. ; Bohnet, M.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 958-958

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710943

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43. Biofouling - Ursachen, Auswirkungen und erfolgreiche Gegenmaßnahmen (1999)

Diehl, (Fh) Barbara ; Kakas, (Fh) Margit ; Preuß, Andrea ; [et al.]

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 961-962

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Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710947

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100

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47. Einsatz des Ultraschalls zur Charakterisierung disperser Systeme - Ein Überblick (1999)

Hinze, F. ; Babick, F. ; Ripperger, S.

Weinheim : Wiley-Blackwell

Chemie Ingenieur Technik - CIT 71 (1999), S. 964-965

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ISSN: 0009-286X

Keywords: Chemistry ; Industrial Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/cite.330710951

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