Library

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • Inorganic Chemistry  (5)
  • Scanning electron microscopy  (3)
  • Harmonic analysis  (2)
  • adducts  (2)
  • 1
    Electronic Resource
    Electronic Resource
    Extended harmonic analysis of phase space representations for the Galilei group (1986)
    Springer
    Acta applicandae mathematicae 6 (1986), S. 19-45 
    Details
    ISSN: 1572-9036
    Keywords: 20C35 ; 81G20 ; Harmonic analysis ; stochastic quantum mechanics ; systems of covariance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The spectral resolution of phase space representations of the Galilei group is achieved by deriving all possible decompositions into irreducible representations corresponding to reproducing kernel Hilbert spaces. Spectral syntheses in terms of eigenfunction expansions, as well as in terms of continuous resolutions of the identity, are achieved. For the latter, the existence, uniqueness and other basic properties of resolution generators are established. This is shown to lead to systems of covariance related to measurements of stochastic phase space values performed with extended quantum test particles, whose proper wavefunctions are the aforementioned resolution generators.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046933
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Harmonic analysis and systems of covariance for phase space representation of the poincaré group (1986)
    Springer
    Acta applicandae mathematicae 6 (1986), S. 47-62 
    Details
    ISSN: 1572-9036
    Keywords: 81M05 ; 83A05 ; Harmonic analysis ; POV measures ; relativistic stochastic phase space
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Continuing some earlier work on the Galilei group, the spectral resolution of phase space representations of the Poincaré group is achieved by deriving all possible decompositions into irreducible representations corresponding to reproducing, kernel Hilbert spaces. Systems of covariance related to quantum measurements performed with extended test particles are analyzed, and questions of global unitarity discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00046934
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Synthesis and thermal behaviour of adducts of [Mo(CN)8]3− and [W(CN)8]3− with 8-hydroxyquinoline (1992)
    Springer
    Journal of thermal analysis and calorimetry 38 (1992), S. 1391-1398 
    Details
    ISSN: 1572-8943
    Keywords: adducts ; complexes ; 8-hydroxyquinoline
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die hergestellten Addukte von [Mo(CN)8]3− und von [W(CN)8]3− mit 8-Hydroxyquinolin (Oxin) haben die allgemeine Formel K3[Mo(CN)8](C9H7ON)8·4H2O bzw. K3[W(CN)8](C9H7ON)6·3H2O. Die FTIR-Spektren beweisen die Gegenwart der (CN)- bzw. der Oxingruppen in den Adduktverbindungen durch die Peaks im Bereich 2047–2108 cm bzw. 1015–1461 cm−1. Die untere Region des FTIR-Spektrums zeigt die M=O Valenzschwingung, die obere Region (N-H) und (OH). Nichtkoordiniertes Wasser wird in diesen Addukten in einem einzigen Schritt bei 110°C abgegeben. Die Zersetzung der Adduktverbindungen beginnt bei 125°C und setzt sich in verschiedenen Schritten bis hin zu 850°C fort. Der zweite Schritt der Zersetzung wird durch die Abgabe von Oxinmolekülen beherrscht, wobei polymere Oxide der allgemeinen Formel K2OM2O5 (mitM= Mo oder W) als Pyrolyseprodukte erhalten werden.
    Notes: Abstract The adducts of [Mo(CN)8]3− and [W(CN)8]3− with 8-hydroxyquinoline (oxine) synthesized were of the type K3[Mo(CN)8]·(C9H7ON)8·4H2O and K3[W(CN)8]·(C9H7ON)6·3H2O. The FTIR spectra show the presence of the (CN) and oxine group in the adduct compounds through the peaks in the range 2047–2108 cm−1 and 1015–1461 cnf−1 respectively. The lower region of FTIR spectra show the M=O stretching while the higher range to v(N-H) and v(OH) modes. The uncoordinated water in these adducts was removed at around 110°C in a single step. The decomposition of adduct compounds starts from 125°C and continues to higher temperatures upto 850°C in different stages. The second stage of decomposition was predominant with the removal of oxine molecules with the formation of polymeric oxide of the type K2O·M2O5 (whereM=Mo or W) obtained as the pyrolysis product.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01975072
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 4
    Electronic Resource
    Electronic Resource
    Synthesis, characterization and thermal behaviour of adducts (1996)
    Springer
    Journal of thermal analysis and calorimetry 46 (1996), S. 1763-1774 
    Details
    ISSN: 1572-8943
    Keywords: adducts ; complexes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The photoproduct of octacyanomolybdate(IV) and -tungstate(IV) with ethylenediamine and triethylenetetramine give complexes of the type K3[Mo(O2)(O)(OH)(C9H7ON)]·3C9H7ON I, K2[W(O2)(O) (C9H7ON)3] II and K3[Mo(CN)3(OH)4(C9H7ON)]·2C9H7ON·3H2O III with 8-quinolinol (oxine). The IR spectra of the complex III shows the presence ofv(CN) peaks in the range 2047–2108 cm−1 and oxine groupv(C-O) in the complex I, II and III in the range of 1100–1150 cm−1. The lower region of IR spectra shows the M=O stretching while the higher thev(N-H) andv(OH). Thermal studies show the removal of uncoordinated water at 131
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01980781
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Microangioarchitecture of the islets of Langerhans in the snakes,Naja naja, Vipera russelli, andEchis carinatus (1991)
    Springer
    Cell & tissue research 266 (1991), S. 83-88 
    Details
    ISSN: 1432-0878
    Keywords: Islets of Langerhans ; Microangioarchitecture ; Corrosion casts ; Scanning electron microscopy ; Naja naja, Vipera russelli, Echis carinatus (Serpentes)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Due to a decided lack in the literature of reports on the microangioarchitecture of the pancreas of snakes, an analysis was performed in three different species of two different ophidian families with the use of cast preparations and complementary scanning electron microscopy. The vascular architecture reflects the lobular substructure of the pancreas; the organ is supplied by branches of the superior mesentric artery. Coiled lobular arteries and arterioles continue into a meshwork of capillaries. Dilated capillaries of the endocrine portion of the pancreas are an integral component of this fine capillary network. A few very small capillaries establish a connection between the endocrine and the exocrine pancreas. The other capillaries drain into venules, which ultimately join their respective veins. No interspecific differences were noted in the vascularization of the pancreas of the three ophidian species examined. The present results suggest the existence of arterio-venous anastomoses and speak against the presence of a portal system, but establish a feed-forward capillary connection from the endocrine to the exocrine component of the ophidian pancreas.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00678714
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Microvasculature of the pineal organ of the rainbow trout (Salmo gairdneri) (1987)
    Springer
    Cell & tissue research 250 (1987), S. 425-429 
    Details
    ISSN: 1432-0878
    Keywords: Pineal organ ; Angioarchitecture (capillaries,arteries, veins) ; Corrosion-cast preparation method ; Scanning electron microscopy ; Salmo gairdneri
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The angioarchitecture of the pineal organ of the rainbow trout (Salmo gairdneri) was investigated by means of the corrosion-cast preparation method and scanning electron microscopy. Two main arteries (aa. epiphyseales) supply the pineal parenchyma. They emerge from the aa. cerebri anteriores and run in the fissure between the prosencephalon and the mesencephalon. After entering the pineal stalk, the aa. epiphyseales branch off into several arterioles, most of which extend to the pineal end-vesicle where they give rise to a lobular, bilaterally symmetric capillary network. Capillaries establishing the main portion of the pineal vessels appear widened in comparison to those supplying other portions of the brain and resemble capillaries in other endocrine organs. In Salmo gairdneri, no specialized system of portal vessels appears to exist between the pineal organ and other portions of the brain.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00219087
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Vascular pattern in the pancreas of the cat (1982)
    Springer
    Cell & tissue research 223 (1982), S. 231-234 
    Details
    ISSN: 1432-0878
    Keywords: Pancreas (cat) ; Islet of Langerhans ; Vascularization ; Scanning electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The pathways of microcirculation in the pancreas of the cat were investigated by scanning electron microscopy of Mercox preparations of the vascular bed. A portal system from islet to exocrine vessels as well as a direct arterial flow to the exocrine pancreas have been observed. Sphincters appear to exist in portal capillaries at the border between the endocrine and exocrine portions of the pancreas. Islets possess an independent venous drainage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00221512
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 8
    Electronic Resource
    Electronic Resource
    Studies on the behaviour of cuprous chloride in hydrochloric acid and potassium chloride solutions. I. Chemical analysis in the aqueous phase (1959)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 299 (1959), S. 322-327 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es werden die Ergebnisse von Untersuchungen über die Komplexbildung zwischen CuCl und HCl bzw. KCl in Lösung und im Bodenkörper mitgeteilt. Zur Konzentrationsbestimmung der Komponenten im Bodenkörper wird eine indirekte Methode benutzt. Im System CuCl—HCl liegen in Lösung die Komplexe H2CuCl3 und H3CuCl4 vor, analoge Komplexe finden sich in Lösung im System CuCl—KCl, während im Bodenkörper KCuCl2 und K2CuCl2 vorliegen.
    Notes: Investigations have been carried out to determine the complex ion formation between cuprous chloride and hydrochloric acid and cuprous chloride and potassium chloride in the aqueous and solid phase. An indirect method to determine the concentration of the components in the solid phase was employed due to the highly oxidisable nature of cuprous ions. Rectangular curves were drawn. In the case of hydrochloric acid, complexes like H2CuCl3 and H3CuCl4 are formed in the liquid phase while H2CuCl3; H3CuCl4 are formed in the solid phase. For potassium chloride, complexes like K3CuCl4 and K2CuCl3 were found to exist in the aqueous phase and KCuCl2 and K2CuCl3 were obtained in the solid phase. The amount of cuprous chloride going into solution with increasing amount of KCl was found to be lesser for HCl under identical conditions.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19592990510
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 9
    Electronic Resource
    Electronic Resource
    Studies on the behaviour of Cuprous chloride in hydrochloric acid and potassium chloride solution. II. Conductometric and potentiometric Measurements for determining complex ion formation (1959)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 301 (1959), S. 220-224 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Konduktometrische und potentiometrische Untersuchung der Komplexbildung von HCl bzw. KCl mit CuCl in Lösung.
    Notes: The formation of complexes of HCl and KCl with CuCl in solution has been studied by measurements of the conductivity and the electromotoric force.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19593010311
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 10
    Electronic Resource
    Electronic Resource
    The Thermal Dissociation of some Bis and Tetrakis(Pyridine) Metal Complexes (1965)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 337 (1965), S. 6-13 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Es wurde die thermische Zersetzung von 16 Übergangsmetall-Pyridinkomplexsalzen der allgemeinen Formeln M(py)4X2 und M(py)2X2 mit Hilfe von TG- und DTA-Messungen untersucht (M und X siehe „Summary“) und gefunden, daß hierbei hauptsächlich eine Pyridinabgabe erfolgt. Übergänge von (py)4- zu (py)2- und von (py)2- zu (py)1-Komplexen wurden beobachtet.
    Notes: The thermal dissociation of 16 pyridine complexes of the general formulas, M(py)4X2 and M(py)2X2, where M is Cu, Ni, Mn, Cd, Zn, and Co and X is SCN, Cl, Br, I and ½ C2O4, was studied by thermogravimetry and differential thermal analysis. The thermal transitions involved were mainly the depyridination reaction to lower pyridine content complexes. Such reactions as tetrakis(pyridine) → bis(pyridine) → mono(pyridine) complexes were observed. The depyridination reactions for the complexes were discussed in detail.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19653370103
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...