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  • 1
    Electronic Resource
    Electronic Resource
    Red shifting the intersubband response of quantum-well infrared photodetectors by thermal annealing (1996)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 80 (1996), S. 4737-4740 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Selectively red shifting the photoresponse of intersubband GaAs/Al0.25Ga0.75As multiple-quantum-well (MQW) infrared photodetectors (QWIPs) by furnace and rapid thermal annealing is explored. Selective interdiffusion of the MQW is achieved by dielectric encapsulating (SiO2 or Si3N4) the surface. The high dark current of annealed QWIPs is attributed to dopant out-diffusion from the QWs into the barriers. Declining responsivities result from reduced carrier density in the QW and a red shift of the intersubband transition energy. In this work, the intersubband energy is determined by the Fourier synthesis model and compared with experimental results (further confirming the interdiffusion mechanism). Minimal dark current and responsivity degradation is observed for Si3N4-encapsulated QWIPs red shifted by 1 μm © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.363456
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  • 2
    Electronic Resource
    Electronic Resource
    p-type InGaAs/InP quantum well infrared photodetector with peak response at 4.55 μm (1996)
    Woodbury, NY : American Institute of Physics (AIP)
    Applied Physics Letters 69 (1996), S. 3209-3211 
    Details
    ISSN: 1077-3118
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Lattice-matched InGaAs/InP quantum well intersubband photodetectors (QWIPs) have been grown on an InP substrate by gas source molecular beam epitaxy. Detection at 4.55 μm was observed for a narrow well p-type InGaAs QWIP which, when complimented by a high responsivity 8.93 μm n-type InGaAs/InP QWIP, demonstrates the possibility of dual band, monolithically integrated QWIPs on the same InP substrate. Theoretical calculations of the photocurrent spectra are in excellent agreement with the experimental data. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.117963
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  • 3
    Electronic Resource
    Electronic Resource
    Electron binding energy and long-range electronic coupling: A theoretical study (1996)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 104 (1996), S. 9888-9896 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Electronic couplings in long-range electron transfer have been calculated using ab initio molecular orbital theory to investigate the effect of the binding energy of the electron on the decay of through-space and through-bond couplings. Through-space and through-bond couplings for anions and cations of the CF3 dimer and of CnH2n and CnF2n chains were calculated by ab initio molecular orbital theory. The anions and cations provide systems for which the electron binding energies, Be, differ by about a factor of 10. Through-space couplings decay exponentially, exp(−βR), with increasing distance, R, between the donor/acceptor carbon atoms. The decay coefficient β varies approximately as B1/2e. In contrast, the decay coefficients for through-bond coupling in CnF2n and CnH2n chains are not affected significantly by the binding energy of the electron. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.471753
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  • 4
    Electronic Resource
    Electronic Resource
    A protein linkage map of Escherichia coli bacteriophage T7 (1996)
    [s.l.] : Nature Publishing Group
    Nature genetics 12 (1996), S. 72-77 
    Details
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Genome sequencing projects are predicting large numbers of novel proteins, whose interactions with other proteins must mediate the function of cellular processes. To analyse these networks, we used the yeast two-hybrid system on a genome-wide scale to identify 25 interactions among the proteins of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/ng0196-72
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  • 5
    Electronic Resource
    Electronic Resource
    A β-Adrenergic Agonist: Protonated Terbutaline Hemisulfate (1996)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 162-164 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title molecule, tert-butyl[2-(3,5-dihydroxyphenyl)-2-hydroxyethyl]ammonium hemisulfate C12H20NO3+.0.5(SO42−), consists of a phenethylamine skeleton in which the N atom is protonated. The ethylamine side chain is in an extended conformation for both molecules in the asymmetric unit. The distance of the N atom from the centre of the benzene ring is 5.1 Å. The molecules in the unit cell are stabilized by N-H...O and O-H...O hydrogen bonds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270195011395
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  • 6
    Electronic Resource
    Electronic Resource
    An α-Adrenergic Agonist: Protonated Oxymetazoline Hydrochloride Monohydrate (1996)
    Oxford [u.a.] : International Union of Crystallography (IUCr)
    Acta crystallographica 52 (1996), S. 164-166 
    Details
    ISSN: 1600-5759
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: The title compound, 2-[tert-butyl-(2,6-dimethyl-5-hydroxyphenyl)methyl]- 4,5-dihydro-1H,3H+-imidazolium chloride monohydrate, C16H25N2O+·Cl−·H2O, is a sympathomimetic amine containing an imidazole ring. The ring is protonated with the positive charge dispersed over both of the N atoms, which are involved in hydrogen bonding, one with the Cl− ion and the other with a water-O atom. The dihedral angle between the phenyl and imidazole rings is 86.3 (3)°.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0108270195011401
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  • 7
    Electronic Resource
    Electronic Resource
    Distribution of spatial requirements for a MAP/G/1 queue when space and service times are dependent (1996)
    Springer
    Queueing systems 22 (1996), S. 121-127 
    Details
    ISSN: 1572-9443
    Keywords: Spatial requirements ; single server queues
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Notes: Abstract In this paper, we consider a MAP/G/1 queue in which each customer arrives with a service and a space requirement, which could be dependent. However, the space and service requirements of different customers are assumed to be independent. Each customer occupies its space requirement in a buffer until it has completely received its service, at which time, it relinquishes the space it occupied. We study and solve the problem of finding the steady-state distribution of the total space requirement of all customers present in the system. In the process of doing so, we also generalize the solution of the MAP/G/1 queue and find the time-average joint distribution of the queue-length, the state of the arrival process and the elapsed service time, conditioned on the server being busy. This problem has applications to the design of buffer requirements for a computer or communication system.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01159396
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  • 8
    Electronic Resource
    Electronic Resource
    A symplectic structure for connections on surfaces with boundary (1996)
    Springer
    Communications in mathematical physics 175 (1996), S. 657-671 
    Details
    ISSN: 1432-0916
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics , Physics
    Notes: Abstract For compact surfaces with one boundary component, and semisimple gauge groups, we construct a closed gauge invariant 2-form on the space of flat connections whose boundary holonomy lies in a fixed conjugacy class. This form descends to the moduli space under the action of the full gauge group, and provides an explicit description of a symplectic structure for this moduli space.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02099512
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  • 9
    Electronic Resource
    Electronic Resource
    Binuclear oxovanadium(IV) complexes of phthalazine hydrazone ligands (1996)
    Springer
    Transition metal chemistry 21 (1996), S. 262-265 
    Details
    ISSN: 1572-901X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The oxovanadium(IV) complexes [(VOSO4·H2O)2L] and [(VO)2L1(μ-SO4)] (L = hydrazone ligands derived from 1,4-dihydrazinophthalazine and benzaldehyde, 4-chlorobenzaldehyde, 4-methoxybenzaldehyde or acetophenone; L 1H2 = hydrazone ligands derived from 1,4-dihydrazinophthalazine and salicylaldehyde, 2-hydroxyacetophenone or 2-hydroxynaphthaldehyde) have been prepared and characterized by elemental analyses, electrical conductance, magnetic moments and spectral data. Reduced magnetic moments are observed for all sulfato-bridged derivatives, indicating antiferromagnetically coupled vanadium(IV) centres. The vanadium(IV) centres appear to have five-coordinated stereochemistries in the systems which involve two metals bound to each ligand. The thermal behaviour of the complexes was investigated by t.g. and d.t.g. techniques. The antifungal and antiviral activities of the hydrazones and their corresponding complexes were also investigated. The screening results have been correlated with the structural features of the tested compounds.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00165980
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  • 10
    Electronic Resource
    Electronic Resource
    EXSENSEL - a rule-based approach to selection of sensors for process variables (1996)
    Weinheim : Wiley-Blackwell
    Chemical Engineering & Technology - CET 19 (1996), S. 443-447 
    Details
    ISSN: 0930-7516
    Keywords: Chemistry ; Industrial Chemistry and Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A novel expert-system-based method for selection of sensors for process variables is presented. EXSENSEL (expert system based sensor selection) deals with 12 process variables and currently has 94 rules in its knowledge base. Despite its large knowledge base, users have to answer a set of only a few questions regarding a particular process variable, which is selected from a menu of 12 variables. A general description of the chosen process variable can be viewed before invoking the rules. Once a sensor has been selected, a brief write up on that particular sensor is also available on user's request. EXSENSEL is the successor to TRANSELEX, which is a single expert system for selection of transducers in the area of temperature, pressure, and flow measurement.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/ceat.270190510
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