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  • Articles  (10)
  • 2010-2014  (5)
  • 1995-1999  (4)
  • 1910-1914  (1)
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  • Articles  (10)
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  • 1
    ISSN: 0192-8651
    Keywords: Gaussian ; massively parallel ; performance ; Cray T3E ; Chemistry ; Theoretical, Physical and Computational Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology , Computer Science
    Notes: Gaussian-94 is the series of electronic structure programs. It is an integrated system to model a broad range of molecular systems under a variety of conditions, performing its calculations from the basic laws of quantum chemistry. This new version includes methods and algorithms for scalable massively parallel systems such as the Cray T3E supercomputer. In this study, we discuss the performance of Gaussian using large number of processors. In particular, we analyze the scalability of methods such as Hartree-Fock and density functional theory (DFT), including first and second derivatives. In addition, we explore scalability for CIS, MP2, and MCSCF calculations. Scalability and speedups were investigated for most of the examples with up to 64 process elements. A single-point energy calculation (B3-LYP/6-311++G3df,3p) was tested with up to 512 process elements.   © 1998 John Wiley & Sons, Inc.   J Comput Chem 19: 1053-1063, 1998
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: The design, development and performance of the time-of-flight (TOF) small-angle diffractometer (SAD) at the Intense Pulsed Neutron Source (IPNS) at Argonne National Laboratory are described. Similar TOF-SANS instruments are in operation at the pulsed neutron sources at Los Alamos National Laboratory, USA, at Rutherford Appleton Laboratory, England, and at KEK, Japan. These instruments have an advantage by comparison with their steady-state counterparts in that a relatively wide range of momentum transfer (q) can be monitored in a single experiment without the need to alter the collimation or the sample-to-detector distance. This feature makes SANS experiments easy and very effective for studying systems such as those undergoing phase transitions under different conditions, samples that cannot be easily reproduced for repetitive experiments, and systems under high temperature, pressure or shear. Three standard samples are used to demonstrate that the quality of the SANS data from SAD is comparable with those from other established steady-state SANS facilities. Two examples are given to illustrate that the wide q region accessible in a single measurement at SAD is very effective for following the time-dependent phase transitions in paraffins and temperature- and pressure-dependent phase transitions in model biomembranes.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1745-4573
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Precooked, small-portion, microwave-reheatable steaks were processed from three grades (US Choice, US Select+, and US Select-) of top round beef. Marinated/tenderized samples were compared to nonmarinated/nontenderized controls from each grade. Untrained consumers (n=102) rated the sensory attributes, overall acceptability, and willingness to purchase the steaks at various settings (fast food, restaurant/cafeteria, supermarket). Marination and tenderization improved the sensory attributes, overall acceptability, and consumers' willingness to purchase the steaks, regardless of the grade from which they were prepared. Marinated/tenderized steaks from the US Select grade were more acceptable than nonmarinated/nontenderized steaks from the US Choice grade. Marinated/tenderized steaks from each grade required less force and energy to cut, contained about 3% more moisture and 0.5% less fat, and had more cooking loss than their control counterparts. However, consumers rated the marinated/tenderized products as being more tender, juicy, flavorful and more acceptable overall than controls.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Industrial & engineering chemistry 4 (1912), S. 901-903 
    ISSN: 1520-5045
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Restructured hams were made from modified food starch (MFS), kappa-carrageenan (k-c), isolated soy protein (ISP), and processed with different levels of PSE pork [100% Normal, 50% PSE/50% Normal, 100% PSE]. Hams were ground, tumbled for 2h with a brine, stuffed, and water cooked. Bind strength values decreased and expressible moisture increased with addition of PSE pork to the ISP and k-c treatments. Incorporation of MFS decreased bind strength and expressible moisture and increased yields in the 100P treatment. Results indicated MFS enhanced the water retention of PSE pork in a restructured product.
    Type of Medium: Electronic Resource
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  • 6
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2011-05-14
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Jennifer -- New York, N.Y. -- Science. 2011 May 13;332(6031):781. doi: 10.1126/science.332.6031.781.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21566170" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; *Fallopia japonica/growth & development ; Great Britain ; *Hemiptera/growth & development ; Introduced Species ; Pest Control, Biological/*methods ; *Plant Weeds/growth & development ; Weed Control/*methods
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2011-02-12
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Jennifer -- New York, N.Y. -- Science. 2011 Feb 11;331(6018):698-9. doi: 10.1126/science.331.6018.698.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21311005" target="_blank"〉PubMed〈/a〉
    Keywords: Awards and Prizes ; *Data Interpretation, Statistical ; Data Mining ; *Forecasting ; *Statistics as Topic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2012-12-14
    Description: A subset of ultraluminous X-ray sources (those with luminosities of less than 10(40) erg s(-1); ref. 1) are thought to be powered by the accretion of gas onto black holes with masses of approximately 5-20M cicled dot, probably by means of an accretion disk. The X-ray and radio emission are coupled in such Galactic sources; the radio emission originates in a relativistic jet thought to be launched from the innermost regions near the black hole, with the most powerful emission occurring when the rate of infalling matter approaches a theoretical maximum (the Eddington limit). Only four such maximal sources are known in the Milky Way, and the absorption of soft X-rays in the interstellar medium hinders the determination of the causal sequence of events that leads to the ejection of the jet. Here we report radio and X-ray observations of a bright new X-ray source in the nearby galaxy M 31, whose peak luminosity exceeded 10(39) erg s(-1). The radio luminosity is extremely high and shows variability on a timescale of tens of minutes, arguing that the source is highly compact and powered by accretion close to the Eddington limit onto a black hole of stellar mass. Continued radio and X-ray monitoring of such sources should reveal the causal relationship between the accretion flow and the powerful jet emission.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Middleton, Matthew J -- Miller-Jones, James C A -- Markoff, Sera -- Fender, Rob -- Henze, Martin -- Hurley-Walker, Natasha -- Scaife, Anna M M -- Roberts, Timothy P -- Walton, Dominic -- Carpenter, John -- Macquart, Jean-Pierre -- Bower, Geoffrey C -- Gurwell, Mark -- Pietsch, Wolfgang -- Haberl, Frank -- Harris, Jonathan -- Daniel, Michael -- Miah, Junayd -- Done, Chris -- Morgan, John S -- Dickinson, Hugh -- Charles, Phil -- Burwitz, Vadim -- Della Valle, Massimo -- Freyberg, Michael -- Greiner, Jochen -- Hernanz, Margarita -- Hartmann, Dieter H -- Hatzidimitriou, Despina -- Riffeser, Arno -- Sala, Gloria -- Seitz, Stella -- Reig, Pablo -- Rau, Arne -- Orio, Marina -- Titterington, David -- Grainge, Keith -- England -- Nature. 2013 Jan 10;493(7431):187-90. doi: 10.1038/nature11697. Epub 2012 Dec 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Physics Department, University of Durham, Durham DH1 3LE, UK. m.j.middleton@durham.ac.uk〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/23235823" target="_blank"〉PubMed〈/a〉
    Print ISSN: 0028-0836
    Electronic ISSN: 1476-4687
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
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  • 9
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2012-08-04
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Jennifer -- New York, N.Y. -- Science. 2012 Aug 3;337(6094):510. doi: 10.1126/science.337.6094.510.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22859461" target="_blank"〉PubMed〈/a〉
    Keywords: *Bacterial Physiological Phenomena ; *Cell Division ; Choanoflagellata/cytology/*growth & development/*microbiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 10
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    American Association for the Advancement of Science (AAAS)
    Publication Date: 2014-05-17
    Description: 〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Carpenter, Jennifer -- New York, N.Y. -- Science. 2014 May 16;344(6185):681, 683. doi: 10.1126/science.344.6185.681.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/24833369" target="_blank"〉PubMed〈/a〉
    Keywords: *Career Mobility ; Egypt ; Financing, Organized ; Research Personnel/*legislation & jurisprudence ; Retirement/*legislation & jurisprudence ; Universities/*legislation & jurisprudence
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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