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  • 2005-2009  (3)
  • 1955-1959  (7)
  • 1950-1954  (4)
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  • 1
    Digitale Medien
    Digitale Medien
    DSP Based Implementation of Hybrid Fuzzy PI Speed Controller for Direct Torque Controlled Permanent Magnet Synchronous Motor Drive (2007)
    Berkeley, Calif. : Berkeley Electronic Press (now: De Gruyter)
    International journal of emerging electric power systems 8.2007, 2, art6 
    Details
    ISSN: 1553-779X
    Quelle: Berkeley Electronic Press Academic Journals
    Thema: Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: This paper presents a Digital Signal Processor (DSP) based implementation of Hybrid of Fuzzy Logic Controller (FLC) and Proportional-Integral (PI) speed controller for Direct Torque Controlled (DTC) Permanent Magnet Synchronous Motor (PMSM) drive. The fuzzy membership function is used for hybrid control of these two FLC and PI speed controllers in such a way that at the time of dynamic conditions such as starting, the degree of belonging for FLC speed controller is higher than the PI speed controller and near set point the degree of belonging of PI controller is having higher weightage. The simulation model of the drive system is developed in MATLAB environment with simulink, PSB and FLC toolboxes to analyze the performance of the PMSM drive system. This hybrid speed controller is found suitable for DTC based PMSM drive to maintain the high level of performance while maintaining the excellent response at the time of starting, speed reversal, load perturbation and steady-state operating condition of the drive.
    Materialart: Digitale Medien
    URL: http://www.bepress.com/ijeeps/vol8/iss2/art6
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  • 2
    Digitale Medien
    Digitale Medien
    Chromosomal aberrations in squamous cell carcinomas of the upper aerodigestive tract: biologic insights and clinical opportunities (2005)
    Oxford, UK : Munksgaard International Publishers
    Journal of oral pathology & medicine 34 (2005), S. 0 
    Details
    ISSN: 1600-0714
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Oncogenesis results from a progressive accumulation of genetic aberrations consequent to a complex interplay between carcinogenic factors and innate infidelity of DNA surveillance mechanisms. Although the development of genetic aberrations is random, those conferring survival advantages are selected for in a Darwinian manner, thus allowing continuous adaptation to selection pressures. Chromosomal aberrations are a prominent manifestation of genetic damage, which can be closely linked with tumor behavior and outcome as exemplified by curative treatment of chronic myelogenous leukemia resulting from targeting the BCR-ABL translocation. In the case of head and neck squamous cell carcinomas (HNSCC), chromosomal changes are detectable at all stages of tumor development, providing excellent opportunities for genomic prognostication and therapy. Several studies have shown that the overall genomic profile of HNSCC is highly consistent, but individual tumors vary significantly in their complement of genetic alterations, thereby confounding clinical correlation. The application of modern genetic and bioinformatic analytic approaches has facilitated the identification of critical genomic changes in HNSCC, many of which have been linked to clinical outcome. These genetic aberrations represent excellent targets for novel therapeutics, but require validation. The initiation of phase III trials evaluating the therapeutic utility of genetic aberrations suggests a promising future for genome-based treatment of HNSCC.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1600-0714.2005.00343.x
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  • 3
    Digitale Medien
    Digitale Medien
    Nuclear Division in AmŒbÆ and its Bearing on Classification (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 582-584 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] IN the past, the order Amoebida Calkins has been divided into families on such characters as the presence of a flagellate stage under certain physiological conditions, their parasitic or free-living nature, the possession of an accessory body called Neben-korper, etc. Such a system is not based on ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/167582a0
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  • 4
    Digitale Medien
    Digitale Medien
    Effect of Moonlight on Insect Activity (1951)
    [s.l.] : Nature Publishing Group
    Nature 167 (1951), S. 853-853 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] In spite of the fact that it is generally believed that other methods of catching are also poor at full moon, in the absence of any real evidence for this there was a distinct probability that the low catches in a light trap might be due to a lowered relative luminosity and hence a lowered ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/167853a0
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  • 5
    Digitale Medien
    Digitale Medien
    Occurrence and Nature of an Amœba Excystment Factor produced by Aerobacter sp. (1956)
    [s.l.] : Nature Publishing Group
    Nature 177 (1956), S. 621-622 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Crump1 showed that excystment in Amoeba Z (Didascalus ihorntoni ; Singh6) took place without the presence of bacteria, while Amoeba 4 (Schizo-pyrenus russelli; Singh6) excysted only in the presence of certain bacteria (Aerobacter sp. and 4036). She suggested that the two species of bacteria produce ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/177621a0
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  • 6
    Digitale Medien
    Digitale Medien
    Eine Beobachtung beim Herabfallen von Wassertropfen auf Öloberflächen (1953)
    Springer
    The European physical journal 136 (1953), S. 105-107 
    Details
    ISSN: 1434-601X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01338704
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  • 7
    Digitale Medien
    Digitale Medien
    Modelling to Reduce the Configuration Phase Time of Machine Design (2008)
    s.l. ; Stafa-Zurich, Switzerland
    Advanced materials research Vol. 44-46 (June 2008), p. 659-668 
    Details
    ISSN: 1662-8985
    Quelle: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Thema: Maschinenbau
    Notizen: The configuration phase for a new machine design is expensive and time consuming forspecial purpose machine manufacturers. This papers presents a modelling approach that can aid suchcompanies reduce the configuration phase time and its respective costs. The approach isdemonstrated with an industrial case study
    Materialart: Digitale Medien
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.44-46.659.pdf
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  • 8
    Digitale Medien
    Digitale Medien
    A Culture Method for Growing Small Free-Living Amœbæ for the Study of their Nuclear Division (1950)
    [s.l.] : Nature Publishing Group
    Nature 165 (1950), S. 65-66 
    Details
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THE genera and species among the small free-living, intestinal and parasitic amoebae have been largely created by previous workers on the basis of their nuclear structure and their mode of nuclear division. A review of the literature on the nuclear division in small free-living amoebae clearly ...
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1038/165065a0
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  • 9
    Digitale Medien
    Digitale Medien
    Sodium hypochlorite as volumetric reagent (1958)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 162 (1958), S. 325-327 
    Details
    ISSN: 1618-2650
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary In presence of 5 N to 6 N hydrochloric acid, ferrous ethylenediamine sulphate was used as a reducing agent to determine indirectly potassium chlorate, potassium bromate, potassium metaperiodate, potassium dichromate, potassium ferricyanide, potassium permanganate, potassium persulphate, hydrogen peroxide, ceric sulphate and chloramine-T. An excess of ferrous ethylenediamine sulphate added to each of the substances in the acid medium was titrated with a standard solution of sodium hypochlorite. Iodine monochloride was used as catalyst and preoxidizer and chloroform was used as an indicator. Chloroform was coloured violet owing to the liberation of iodine during the titration and became very pale yellow at the end-point because of the formation of iodine monochloride.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00453223
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  • 10
    Digitale Medien
    Digitale Medien
    Bismuthiol II as an analytical reagent (1957)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 155 (1957), S. 86-90 
    Details
    ISSN: 1618-2650
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary Thallium (I) forms the Bismuthiol II complex of composition C8H5N2S3 Tl. At about 10° C, it is completely precipitated at high acidity as well as at high alkalinity and the precipitate can be dried at any temperature up to 250° C. The complex is highly stable in presence of a tartrate or citrate, cyanide and complexone III and because of the unusual stability it can be estimated and separated from practically all ions. Bismuthiol II thus can be considered as a highly selective reagent for thallium (I) in presence of a mixture of cyanide and tartrate maintained at aph between 7 and 9.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00475102
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