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528篇 您的检索式:作者名="CARVALHO T"
    题名 作者 年代 出处 被引量
1煤灰沉积的传热过程模型及其数值研究显示文摘计算流体力学(CFD)方法的应用在锅炉设计或燃烧设备的改造过程中有着十分重要的作用.本文研究了实际燃烧过程中普遍存在的煤灰沉积现象对数值计算结果的影响,提出了描述煤灰沉积的新型传热模型,比较了新模型采用前后数值计算结果与实测数据的差异,从而验证了该模型的合理性,提高了对炉内积灰、结渣过程数值描述的精度.徐明厚 郑楚光 HE X G AZEVEDO J L T CARVALHO M G 2002工程热物理学报2002,23,1:10
2Glutamine and glutamate supplementation raise milk glutamine concentrations in lactating gilts显示文摘Glutamine is the most abundant amino acid in milk, and lactation is associated with increased glutamine utilization both for milk synthesis and as a fuel for the enlarged small intestine. A number of recent studies have indicated that lactation is accompanied by a mild catabolic state in which skeletal muscle proteins are degraded to provide amino acids that are used to synthesize additional glutamine. In this study we tested the hypothesis that supplemental L-glutamine or the commercially available glutamine supplement Aminogut (2.5% by weight mixed into daily feed) provided to gilts from 30 days prior to parturition until 21 days post-parturition would prevent a decrease in skeletal muscle glutamine while increasing the glutamine content of the milk. Muscle glutamine content decreased (P < 0.05) in control animals during lactation but this was prevented by supplementation with either L-glutamine or Aminogut. In this study, neither lactation nor supplementation had any effect on plasma glutamine or glutamate content. Free glutamine, and the total glutamine plus glutamate concentrations in milk from the control and the Aminogut group rose (P < 0.05) during the first 7 days of lactation, with milk concentrations in the L-glutamine supplemented group showing a similar trend (P = 0.053). Milk glutamate remained constant between day 7 and 21 of lactation in the control and L-glutamine supplemented groups, but by day 21 of lactation the free glutamine, glutamate, and glutamine plus glutamate concentrations in milk from Aminogut-treated gilts were higher than those of control gilts. Thus dietary glutamine supplementation can alleviate the fall in intramuscular glutamine content during lactation in gilts, and may alleviate some of the catabolic effects of lactation. Furthermore, the increased milk glutamine content in the supplemented gilts may provide optimum nutrition for piglet development.Helena Emilia CCC Manso Helio C Manso Filho Luiz E de Carvalho Marianne Kutschenko Eduardo T Nogueira Malcolm Watford 2012Journal of Animal Science and Biotechnology2012,3,1:3
3Proton nuclear magnetic resonance-based metabonomic models for non-invasive diagnosis of liver fibrosis in chronic hepatitis C:Optimizing the classification of intermediate fibrosis显示文摘AIM To develop metabonomic models(MMs), using 1 H nuclear magnetic resonance(NMR) spectra of serum, to predict significant liver fibrosis(SF: Metavir ≥ F2), advanced liver fibrosis(AF: METAVIR ≥ F3) and cirrhosis(C: METAVIR = F4 or clinical cirrhosis) in chronic hepatitis C(CHC) patients. Additionally, to compare the accuracy of the MMs with the aspartate aminotransferase to platelet ratio index(APRI) and fibrosis index based on four factors(FIB-4). METHODS Sixty-nine patients who had undergone biopsy in the previous 12 mo or had clinical cirrhosis were included. The presence of any other liver disease was a criterion for exclusion. The MMs, constructed using partial least squares discriminant analysis and linear discriminant analysis formalisms, were tested by cross-validation, considering SF, AF and C. RESULTS Results showed that forty-two patients(61%) presented SF, 28(40%) AF and 18(26%) C. The MMs showed sensitivity and specificity of 97.6% and 92.6% to predict SF; 96.4% and 95.1% to predict AF; and 100% and 98.0% to predict C. Besides that, the MMs correctly classified all 27(39.7%) and 25(38.8%) patients with intermediate values of APRI and FIB-4, respectively. CONCLUSION The metabonomic strategy performed excellently in predicting significant and advanced liver fibrosis in CHC patients, including those in the gray zone of APRI and FIB-4, which may contribute to reducing the need for these patients to undergo liver biopsy.Andrea Dória Batista Carlos Jonnatan Pimentel Barros Tássia Brena Barroso Carneiro Costa Michele Maria Goncalves de Godoy Ronaldo Dionísio Silva Joelma Carvalho Santos Mariana Montenegro de Melo Lira Norma ThoméJucá Edmundo Pessoa de Almeida Lopes Ricardo Oliveira Silva 2018World Journal of Hepatology2018,10,1:2
4In-line Sagnac interferometer current sensor显示文摘BLAKE J TANTASWADI P de CARVALHO R T 1996IEEE Transaction on Power Delivery1996,11,1:1
5Modeling of a Front Wall Fired Utility Boiler for Different Operating Condi- tions 显示文摘Xu M Azevedo J L T Carvalho M G 2001Computer Methods in Applied Mechanics and Engineering2001,190,28:1
6Numerical characterization of the morphology of aggregated particles 显示文摘BRASIL A M FARIAS T L CARVALHO M G 2001Journal of Aerosol Science2001,32,:1
7Central role of brown adipose tissue thyroxine 5 ' -deiodinase on thyroid hormone-dependent thermogenic response to cold显示文摘CARVALHO S D KIMURA E T BIANCO A C 1991Endocrinology1991,128,4:1
8Simulation of failure around a circular opening in rock显示文摘FAKHIMI A CARVALHO F ISHIDA T 2002International Journal of Rock Mechanics & Mining Sciences2002,39,4:1
9Pineal yolk sac tumor:correlation between neuroimaging and pathological findings显示文摘Davaus T Gasparetto E L Carvalho Neto A 2007Arq Neuropsiquiatr2007,65,2:1
10Modelling of the combustion processs and NOx emission in a utility boiler显示文摘Xu M Azevedo J L T Carvalho M G 2001Fuel2001,79,13:1
11Quality of hatchery-reared juveniles for marine fisheries stock enhancement显示文摘Le Vay L Carvalho G R Quinitio E T 2007Aquaculture2007,268,14:1
12Arrested B lympho- poiesis and persistence of activated B cells in adult interleukin 7 (-/) - mice显示文摘Carvalho TL Mota-Santos T Cumano A 2001J Exp Med2001,194,8:1
13Inline sagnac interferometer current sensor显示文摘BLAKE J TANTASWADI P DE CARVALHO R T 1996IEEE Transactions on Power Delivery1996,11,1:1
14Natural history of petroclival meningiomas显示文摘Van-Havenbergh T Carvalho G Tatagiba M at al 2003Neurosurgery2003,52,1:1
15Algorithms for fuzzy segmentation 显示文摘CARVALHO B M GAU C J HERMAN G T 1999Pattern Analysis & Applications1999,2,1:1
16Biomass consumption and CO2,CO and main hydrocarbon gas emissions in an Amazonian forest clearing fire显示文摘Soares N T G Carvalho J A Lincoln E N 0,,02:1
17Object-based change detection显示文摘Chen G Hay G J Carvalho L M T 2012International Journal of Remote Sensing2012,33,14:1
18Modelling of zinc extraction from sulphate solutions with bis (2-ethylhexyl) thiophosphoric acid by emulsion liquid membranes显示文摘Reis M T A Carvalho J M R 2004Journal of Membrane Science2004,237,:1
19Isolation and initial characterization of a bacterial consortium able to mineralize fluorobenzene显示文摘Carvalho M F Alves C C T Ferreira M I M 2002Applied and Environmental Microbiology2002,68,1:1
20Supercritical fluid extraction from rosemary (Rosmarinus oficinalis):Kinetic data,extract s global yield,composition,and antioxidant activity显示文摘Carvalho R N Jr Moura L S Paulo T V Rosa 0,,:1
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