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  • Chemical Engineering  (394)
  • Humans  (339)
  • AIRCRAFT PROPULSION AND POWER  (318)
  • 1980-1984  (671)
  • 1975-1979  (380)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Extension of nichols chart for identification of open-loop unstable systems (1984)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 30 (1984), S. 684-686 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690300431
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Tracer analysis in systems with two-phase flow (1979)
    Hoboken, NJ : Wiley-Blackwell
    AIChE Journal 25 (1979), S. 885-890 
    Details
    ISSN: 0001-1541
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/aic.690250518
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    The operating characteristics of twin screw extruders (1978)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 18 (1978), S. 660-667 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: The operation of a twin screw extruder processing a powder or granular solid is reviewed. The operating variables of screw speed and barrel temperature profile interact with a number of design parameters -  screw design, die geometry, feed zone geometry and with the material properties, in determining machine performance. The factors that determine output and pressure development are specified in a sequence of block diagrams. The dynamic response of an operating machine to disturbances in the steady state conditions is explained in the light of the established relationships and interpreted in conventional control theory terms. Attention is drawn to the importance of mixing in the chambers formed by the screw channels and of the residence time distribution in determining the quality of the final product.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760180810
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Processing properties of high- and low-density polyethylenes and their blends (1982)
    Stamford, Conn. [u.a.] : Wiley-Blackwell
    Polymer Engineering and Science 22 (1982), S. 280-286 
    Details
    ISSN: 0032-3888
    Keywords: Chemistry ; Chemical Engineering
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Notes: Blends of two characterized linear polyethylenes with a branched polyethylene have been prepared by melt extrusion. It has been found that the linear polyethylenes can be shear modified in a reversible manner similar to branched polymers and that this shear modification and its reversal by re-heating does not change the molecular weight distribution, thereby indicating that the shear modification is a physical rather than chemical change in structure. Because both the high- and low-density polyethylene components of the blends are capable of undergoing reversible shear modification, it is possible to produce blends with either greater or less melt elasticity than the individual components by adjusting the conditions of blending. This demonstrates that the correlation of the properties of blends with the properties of their components should not be attempted without consideration of the effect of the blending process on the properties of the individual components.
    Additional Material: 14 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/pen.760220503
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    Paper (German National Licenses)
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  • 5
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    Visual phenomena induced by relativistic carbon ions with and without Cerenkov radiation (1978)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1978-07-28
    Description: Exposing the human eye to individual carbon ions (6C+) moving at relativistic speeds results in visual phenomena that include point flashes, streaks, and larger diffuse flashes. The diffuse flashes have previously been observed by astronauts in space but not in laboratory experiments with particles of high atomic number and energy. They are observed only when the nucleus moves fast enough to generate Cerenkov radiation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉McNulty, P J -- Pease, V P -- Bond, V P -- New York, N.Y. -- Science. 1978 Jul 28;201(4353):341-3.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/663660" target="_blank"〉PubMed〈/a〉
    Keywords: *Carbon ; Cations, Monovalent ; Humans ; Motion ; *Space Flight ; Vision, Ocular/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 6
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    Cancer incidence in the Love Canal area (1981)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1981-06-19
    Description: Data from the New York Cancer Registry show no evidence for higher cancer rates associated with residence near the Love Canal toxic waste burial site in comparison with the entire state outside of New York City. Rates of liver cancer, lymphoma, and leukemia, which were selected for special attention, were not consistently elevated. Among the other cancers studied, a higher rate was noted only for respiratory cancer, but it was not consistent across age groups and appeared to be related to a high rate for the entire city of Niagara Falls. There was no evidence that the lung cancer rate was associated with the toxic wastes buried at the dump site.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Janerich, D T -- Burnett, W S -- Feck, G -- Hoff, M -- Nasca, P -- Polednak, A P -- Greenwald, P -- Vianna, N -- New York, N.Y. -- Science. 1981 Jun 19;212(4501):1404-7.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/7233229" target="_blank"〉PubMed〈/a〉
    Keywords: Carcinogens ; Female ; Humans ; Leukemia/epidemiology ; Liver Neoplasms/epidemiology ; Lymphoma/epidemiology ; Male ; Neoplasms/*epidemiology ; New York ; Registries ; Soil Pollutants/*adverse effects
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 7
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    Bimodal distribution of dopamine receptor densities in brains of schizophrenics (1984)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1984-08-17
    Description: The dopamine hypothesis of schizophrenia was examined by measuring the density of dopamine receptors in the postmortem brains of 81 control subjects and 59 schizophrenics from four different countries. The densities of dopamine receptors in the tissues from the schizophrenic patients had a bimodal distribution in the caudate nucleus, putamen, and nucleus accumbens. One mode occurred 25 percent above the control density, and a second mode occurred at a density 2.3 times that of the control density for all three regions. Although almost all the patients had been medicated with neuroleptics, the two modes had the same dissociation constant for the labeled ligand used, suggesting that the neuroleptic doses were similar for the two populations of schizophrenics. The results thus provide direct evidence for two distinct categories of schizophrenia.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Seeman, P -- Ulpian, C -- Bergeron, C -- Riederer, P -- Jellinger, K -- Gabriel, E -- Reynolds, G P -- Tourtellotte, W W -- New York, N.Y. -- Science. 1984 Aug 17;225(4663):728-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6147018" target="_blank"〉PubMed〈/a〉
    Keywords: Antipsychotic Agents/pharmacology ; *Brain Chemistry/drug effects ; Caudate Nucleus/analysis ; Dopamine/physiology ; Humans ; Nucleus Accumbens/analysis ; Putamen/analysis ; Receptors, Dopamine/*analysis/drug effects ; Schizophrenia/*metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 8
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    Psychological stress induces sodium and fluid retention in men at high risk for hypertension (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-04-22
    Description: Exposure to competitive mental tasks significantly reduced the urinary sodium and fluid excreted by young men with one or two hypertensive parents or with borderline hypertension. In this high-risk group, the degree of retention was directly related to the magnitude of heart rate increase during stress, suggesting common mediation by way of the sympathetic nervous system. Thus, psychological stress appears to induce changes in renal excretory functions that may play a critical role in long-term blood pressure regulation.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Light, K C -- Koepke, J P -- Obrist, P A -- Willis, P W 4th -- HL-01096/HL/NHLBI NIH HHS/ -- HL-18976/HL/NHLBI NIH HHS/ -- HL-23718/HL/NHLBI NIH HHS/ -- etc. -- New York, N.Y. -- Science. 1983 Apr 22;220(4595):429-31.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836285" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Blood Pressure ; Heart Rate ; Humans ; Hypertension/etiology/*physiopathology ; Kidney/physiopathology ; Male ; Risk ; Sodium/*metabolism ; Stress, Psychological/metabolism/*physiopathology ; *Water-Electrolyte Balance
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 9
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    Insulin antibodies in insulin-dependent diabetics before insulin treatment (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-12-23
    Description: A sensitive assay was used to measure the binding of iodine-125-labeled insulin in serum obtained from 112 newly diagnosed insulin-dependent diabetics before insulin treatment was initiated. Two groups of nondiabetics served as controls: children with a variety of diseases other than diabetes and nondiabetic siblings of insulin-dependent diabetics. Eighteen of the diabetics were found to have elevated binding and 36 were above the 95th percentile of control values. The insulin-binding protein is precipitated by antibody to human immunoglobulin G, has a displacement curve that is parallel and over the same concentration range as serum from long-standing insulin-dependent diabetics, and elutes from a Sephacryl S-300 column at the position of gamma globulin. These insulin antibodies are present in a large percentage of newly diagnosed, untreated diabetics and may be an immune marker of B-cell damage.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Palmer, J P -- Asplin, C M -- Clemons, P -- Lyen, K -- Tatpati, O -- Raghu, P K -- Paquette, T L -- AM17047/AM/NIADDK NIH HHS/ -- AM30780/AM/NIADDK NIH HHS/ -- New York, N.Y. -- Science. 1983 Dec 23;222(4630):1337-9.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6362005" target="_blank"〉PubMed〈/a〉
    Keywords: Adolescent ; Adult ; Autoantibodies/*analysis ; Child ; Diabetes Mellitus, Type 1/drug therapy/*immunology ; Humans ; Insulin/*immunology/therapeutic use
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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  • 10
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    Alcoholism studies (1983)
    American Association for the Advancement of Science (AAAS)
    Details
    Publication Date: 1983-05-06
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Barlow, D H -- Bellack, A S -- Buchwald, A M -- Garfield, S L -- Hartmann, D P -- Herman, C P -- Hersen, M -- Miller, P M -- Rachman, S -- Wolpe, J -- New York, N.Y. -- Science. 1983 May 6;220(4597):554, 556.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/6836301" target="_blank"〉PubMed〈/a〉
    Keywords: Alcoholism/*therapy ; *Behavioral Research ; Canada ; *Editorial Policies ; *Ethics, Medical ; Humans ; United States
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
    Published by American Association for the Advancement of Science (AAAS)
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