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  • 2000-2004  (124)
  • 1985-1989  (114)
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  • 1
    Electronic Resource
    Electronic Resource
    Mammalian arylsulfatases A and B: relative rates of hydrolysis of artificial substrates (1986)
    Springer
    Cellular and molecular life sciences 42 (1986), S. 150-151 
    Details
    ISSN: 1420-9071
    Keywords: Arylsulfatase A ; arylsulfatase B ; 4-methylumbelliferyl sulfate ; rodent ; bovine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Rodent and bovine arylsulfatase B hydrolyze 4-methylumbelliferyl sulfate (4MUS) 10- to 30-fold more efficiently than arylsulfatase A. Therefore, 4MUS grossly underestimates arylsulfatase A activity in the presence of excess arylsulfatase B.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952440
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  • 2
    Electronic Resource
    Electronic Resource
    Site-selective spectroscopy of hydrogenic sites in CaF2:Er3+ crystals (1987)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 86 (1987), S. 521-544 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Laser selective excitation and optical absorption studies of hydrogenated CaF2:0.05% Er3+ crystals have revealed 16 Er3+ ion sites involving H− or D− ion charge compensation. The relative occurrence of these sites can be controlled over a wide range by varying the duration of the hydrogenation treatment. The hydrogenic nature of these sites is established by the observation of local mode absorption lines in the infrared, Er3+ ion electronic line isotope shifts and associated local mode vibronic lines involving the H− and D− ions. Local mode infrared absorption frequencies of four sites are reported for most rare-earth ions. Five new Er3+−F− sites were identified in the laser selective excitation study. For 〈100〉 and 〈111〉 oriented crystals the fluorescence spectra of several of the sites exhibit well-defined polarization which determines their Er3+ ion site symmetries. Symmetry confirmations are also established for the two previously reported single Er3+ ion sites involving fluoride ion compensation. Eleven of the hydrogenic sites reported here are classified into two families, each derived from a single Er3+ ion site of the parent crystal, while three others are attributed to sites of nearly cubic Er3+ ion symmetry. Detailed spectroscopic results for these sites are presented, together with a crystal-field analysis for the C4v symmetry sites and some model assignments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.452304
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  • 3
    Electronic Resource
    Electronic Resource
    Computer control and data-acquisition system for the rf test facility (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 1904-1906 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The radio frequency test facility (RFTF) at Oak Ridge National Laboratory, used to test and evaluate high-power ion cyclotron resonance heating (ICRH) systems and components, is monitored and controlled by a multicomponent computer system. This data-acquisition and control system consists of three major hardware elements: (1) an Allen-Bradley PLC-3 programmable controller, (2) a VAX 11/780 computer, and (3) a CAMAC serial highway interface. Operating in LOCAL as well as REMOTE mode, the programmable logic controller (PLC) performs all the control functions of the test facility. The VAX computer acts as the operator's interface to the test facility by providing color mimic panel displays and allowing input via a trackball device. The VAX also provides archiving of trend data acquired by the PLC. Communications between the PLC and the VAX are via the CAMAC serial highway. Details of the hardware, software, and the operation of the system are presented in this paper.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1138790
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  • 4
    Electronic Resource
    Electronic Resource
    Apparatus and technique for reconstruction of flaws using model-based elastic wave inverse ultrasonic scattering (1986)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 57 (1986), S. 3089-3098 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: An automated multiviewing ultrasonic apparatus and signal processing routine have been developed for utilization in nondestructive evaluation (NDE) of materials. The instrument has been developed to take advantage of recent advances in long and intermediate wavelength inverse scattering of elastic waves, and provides a 3-D reconstruction of a flaw. Although the reconstruction obtained does not contain fine details of the flaw's structure, it provides sufficient information about the flaw (size, orientation, and selected materials properties) so that failure-predictive decisions can be made.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1139211
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  • 5
    Electronic Resource
    Electronic Resource
    Quantitative Determination of Pea Losses as Affected by Conventional Water Blanching (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 52 (1987), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: A pilot scale study was conducted to measure soluble solid losses of early June, mini and medium sweet peas commercially blanched at 95 ± 1°C for 3 min using a 25 lb (11.34 kg) sample size. Early June peas had smaller losses than mini and medium sweet peas. Dry matter losses were the greatest for the smallest sizes in each variety. Moisture content did not change significantly during blanching but increased after canning. Alcohol Insoluble Solids increased for all sizes in each cultivar after blanching. Recovery of small size peas may be maximized by bypassing blanching and gravity separation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1987.tb14262.x
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  • 6
    Electronic Resource
    Electronic Resource
    Changes in Texture of Green Peas during Freezing and Frozen Storage (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 54 (1989), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The effects of freezing (still-air, air-blast, and Freon immersion freezing) and frozen storage (−5°, −10° and −15°C for 0 to 48 wk) on texture of cooked frozen peas were examined. Peas frozen by a Freon-12 immersion method with no appreciable damage to cell structure had firmer and more chewy sensory textural quality compared to those peas frozen by a slower freezing method. Sensory tenderness decreased initially and then increased with storage time to the maximum storage times of 6 wk in −5°C storage, 16 wk in −10°C storage, and 48 wk in −15°C storage. Sensory chewiness increased initially, then remained constant with storage time except in −15°C storage. Generally, the lower storage temperature resulted in less sensory chewiness. The correlation coefficients (r) between sensory and objective measurements for tenderness and chewiness were 0.76 and 0.88 (P 〈 0.05), respectively.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1989.tb08576.x
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  • 7
    Electronic Resource
    Electronic Resource
    Effect of Heat Processing of Dried Egg White on In Vitro Iron Bioavailability (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 54 (1989), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Egg white (EW) was desugared, adjusted to either pH 7 or pH 9, and freeze-dried. Portions were held at 25°, 50°, 60°, 70° or 80°C for 1 wk. In vitro iron bioavailability (IVIB) was estimated by the method of Kane and Miller (1984) and no differences in IVIB were observed due to EW pH. IVIB of EW held at 50°, 60°, or 70°C was not different (P〉0.05) than that of EW held at 25°C [9.87% dialyzable iron (DI)]; only the 80°C treatment led to IVIB lower (6.76% DI, P〈0.05) than the 25°C control. Differential scanning calorimetry and nondissociating electrophoresis showed that native protein structure, including that of the iron-binding protein ovotransferrin, was maintained after the 70°C treatment but not after the 80°C treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1989.tb08590.x
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  • 8
    Electronic Resource
    Electronic Resource
    Planar channeling in GaAs/InxGa1−xAs/GaAs strained-layer structures (1989)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 65 (1989), S. 1510-1515 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Planar {110} channeling measurements with 1–2-MeV He+ ions have been used to investigate strained-layer structures of (100) GaAs/InxGa1−xAs/GaAs with x=0.07–0.17. Beam-steering effects in the surface GaAs layer are observed to have a major influence on {110} planar angular scans carried out in the InxGa1−xAs layers resulting generally in a double or more complex-shaped angular dip. A simple computer simulation has been developed which determines the main features of the experimental angular scan data. Comparison of simulation and experimental data allows a reasonable determination of the kink angle θK between the {110} planes for the surface GaAs and underlying strained layer. Only in limiting cases is it possible to unequivocally determine θK from the experimental data alone. They are as follows: (i) when θK=0; (ii) θK〉2ψ pc (ψ pc is the critical angle for {110} planar channeling); and (iii) when the thickness t of the top layer is thin (t(very-much-less-than)2d/ψ pc, where d is the {110} interplanar spacing).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.342966
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  • 9
    Electronic Resource
    Electronic Resource
    Conversion of the SRS to a higher brilliance lattice (invited) : International conference on synchrotron radiation instrumentation (1989)
    [S.l.] : American Institute of Physics (AIP)
    Review of Scientific Instruments 60 (1989), S. 1377-1381 
    Details
    ISSN: 1089-7623
    Source: AIP Digital Archive
    Topics: Physics , Electrical Engineering, Measurement and Control Technology
    Notes: The SRS at Daresbury has been upgraded by the addition of quadrupoles which reduce the emittance by a factor of 15. In order to do this without disturbing the beamlines, all 16 straight sections were rebuilt. Additional sextupole and octupole magnets were included, as was additional pumping capacity. Completely new beam monitor and vertical steering systems have been incorporated. The SRS was shut down on 1 October 1986 and, after recommissioning, regular scheduled operation for users at the rate of nearly 6000 h per year has been in effect again since June 1987. Scheduled operation is at 2 GeV with the 5T wiggler operational. The gain in brightness is as expected. Maximum beam current at 2 GeV is now 280 mA. Beam lifetime is 20 h at 200 mA. Diffraction patterns of small angle scattering from muscle obtained with an electronic area detector show that with the improved brilliance, diffraction lines corresponding to spacings exceeding 15 000 A(ring) can be clearly resolved. Work is about to start on the provision of a second superconducting wiggler with 6T field feeding five new experimental stations.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.1140996
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  • 10
    Electronic Resource
    Electronic Resource
    COMMENTS ON “Guest Editorial – Deep Well Injection: Models, Reality, and How To Do It Right,” by Raphael G. Kazmann, November-December 1988 issue, v. 26, no. 6, pp. 690–693 (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Ground water 27 (1989), S. 0 
    Details
    ISSN: 1745-6584
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Geosciences
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-6584.1989.tb00451.x
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