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Blood Gone Bad?

当代外语研究 2006年第8期 6-7页

作者： Briahna gray 啸川

杜克大学的研究人员发现,病人输入血液的新鲜程度将影响到病人的存活机率。如果该发现进一步得到证实的话,对那些高危病人来说,理应给他们输入新鲜的血液。这是因为捐献的血液中的红细胞将随着时间推移而产生新陈代谢,从而影响血液中氧... 详细信息

杜克大学的研究人员发现,病人输入血液的新鲜程度将影响到病人的存活机率。如果该发现进一步得到证实的话,对那些高危病人来说,理应给他们输入新鲜的血液。这是因为捐献的血液中的红细胞将随着时间推移而产生新陈代谢,从而影响血液中氧气的传输。

关键词：血液新陈代谢高危病人时间推移输入新鲜程度红细胞发现研究人员围术期

Cycles, the Degree Distance, and the Wiener Index

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Open Journal of Discrete Mathematics 2012年第4期2卷 156-159页

作者： Daniel gray Hua Wang Department of Mathematical Sciences Georgia Southern University Statesboro USA Department of Mathematics University of Florida Gainesville USA

The degree distance of a graph G is , where and are the degrees of vertices , and is the distance between them. The Wiener index is defined as . An elegant result (Gutman;Klein, Mihali?,, Plav?i? and Trinajsti?) is known regarding their correlation, that for a tree T with n vertices. In this note, we extend this study for more general graphs that have frequent appearances in the study of these indices. In particular, we develop a formula regarding their correlation, with an error term that is presented with explicit formula as well as sharp bounds for unicyclic graphs and cacti with given parameters.

关键词： Degree Distance Wiener Index Cacti

PICK THE PERFECT THERMOPLASTIC FOR PULP AND PAPER PIPES AND VESSELS

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PICK THE PERFECT THERMOPLASTIC FOR PULP AND PAPER PIPES AND ...

The 2nd China International Corrosion Control Conference (CICC’2002)

作者： gray DENNIS THE RANGE OF CHEMICALS PUMPED POUREDPITATEDAND PRESSED THEOUGH PIPESTANKSTOWERS AND NOZZLES PRESENTS PULR AND PAPER ENGINEERING AND MAINTENANCE PEOPLE WITH THE SAME PROBLEMS THEIR CHEMICAL PLANT COUNTERPARTS FACR.

＜正＞ In a paper mill, ph ranges from less than one in souring acid tanks and lines to more than 13 at caustic storage andaddition points. Aggressive additives that control foam, neutralize metals, and make paper stiffer, softer, whiter, andbrighter combine in fast moving, high temperature fluids to attack the strongest stainless steel and ruin otherwiserugged *** protect pipes and provide the longest possible service life between change outs, it is important to select the liningmeterial that will endure exposure to aggressive chemicals for years to come. The most appropriate plastic for aparticular pipe may of may not be the most expensive on a per-foot or an installed cost basis. A basic understanding ofhow different thermoplastics perform in pulp and paper applications will assist mill engineers in getting the most fromtheir installation or retrofit budget.

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The new world

英语学习 1997年第10期 45-48页

作者： Alasdair gray 简墨

Millions of people lived in rooms joined by windowless *** work which kept their world going(orseemed to,because they were taught that it did,and no-body can teach the exact truth)was done on machines in therooms wher... 详细信息

关键词： The new world

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汽车系统中的自适应速度控制

电子技术应用 2008年第2期34卷 I0001-I0001,I0003,I0005-I0007页

作者： Nicholas gray

目前，用于测距（度量距离）的电子系统有SONAR（声纳导航及测距）RADAR（无线电方向及测距）和LIDAR（光探测及测距）。基本上，这些系统都是采用相同的原理来探测客体（目标）距离。即使用一个能量源以及采用一定的方法探测反射信号... 详细信息

目前，用于测距（度量距离）的电子系统有SONAR（声纳导航及测距）RADAR（无线电方向及测距）和LIDAR（光探测及测距）。基本上，这些系统都是采用相同的原理来探测客体（目标）距离。即使用一个能量源以及采用一定的方法探测反射信号，并通过分析反射信号确定与目标相关的各种事物。最普遍的测距应用便是测量目标物的距离或范围。

关键词：汽车系统速度控制自适应反射信号 LIDAR RADAR 光探测电子系统

炼钢和加工工艺对微合金化钢成分的影响——历史性剖析

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钢铁钒钛 1991年第4期12卷 71-77页

作者： gray J 李刚国际微合金化公司

微合金化钢的出现已有三十多年。最初,它通常是半镇静钢,锭铸(模铸),并且杂质含量不能很好地控制。炼钢技术、钢包精炼和连铸技术的发展,使钢铁工业发生了一次革命。很低的碳、氮、硫、磷和氧含量已能为许多生产厂家所实现。由于战略... 详细信息

微合金化钢的出现已有三十多年。最初,它通常是半镇静钢,锭铸(模铸),并且杂质含量不能很好地控制。炼钢技术、钢包精炼和连铸技术的发展,使钢铁工业发生了一次革命。很低的碳、氮、硫、磷和氧含量已能为许多生产厂家所实现。由于战略、经济或技术方面的原因,这种变革为重新考虑钢的成分提供了机会。而在其他一些情况,常用的微合金化元素组合已不再能达到传统的性能均衡。各厂家方法既不一致,炼钢能力也不相同。因此,本文回顾了微合金化工业中的炼钢工艺和成分设计的发展趋势,并且讨论了中国钢厂HSLA钢设计方面的问题。

关键词：微合金化钢生产工艺成分设计

Acetone Extract of <i>Dioscorea alata</i>Inhibits Cell Proliferation in Cancer Cells

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American Journal of Plant Sciences 2021年第3期12卷 300-314页

作者： Kenroy Wallace Helen Asemota Wesley gray Department of Basic Medical Sciences (Biochemistry Section) The University of the West Indies Mona Campus Kingston Jamaica Biotechnology Centre University of the West Indies Mona Campus Kingston Jamaica Department of Environmental Toxicology Southern University Baton Rouge LA USA

Dioscorea spp., White Yam has been shown to exhibit a wide range of nutritional and medicinal properties. However, the compounds associated with its medicinal functions have not been fully examined. The purpose of this study was to generate a chemoinformatic profile of the bioactive compounds present in Dioscorea. alata (D. alata) and to characterize their putative anti-cancer properties using prostate (DU145) and lung (A549) cancer cells. Chemoinformatic profiling of D. alata resulted in five bioactive extracts: hexane (DaJa-1), ether (DaJa-2), acetone (DaJa-3), ethanol (DaJa-4) and water (DaJa-5) were generated. The analytes present in the five bioactive extracts were dissolved in 0.1% DMSO and their anti-cancer activity were determined. We observed that the acetone extract (DaJa3) was the only extract capable of inducing greater than 90% cell death of DU 145 cell at 100 μg/mL. The order of growth inhibition of the extracts in DU-145 cell is DaJa-3 (IC50, 31.45 μg/mL) > DaJa-4 (IC50 60 μg/mL) > DaJa-1 (IC50 > 100 μg/mL) ≥ DaJa-2 (IC50 > 100 μg/mL) ≥ DaJa-5 (IC50 > 10

关键词： Dioscorea alata Acetone Extract Anticancer Activity White Yam

Genetic relationship between purebred and crossbred sow longevity

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Journal of Animal Science and Biotechnology 2017年第1期8卷 24-29页

作者： C.E.Abell R.L.Fernando T.V.Serenius M.F.Rothschild K.A.gray K.J.Stalder Department of Animal Science Iowa State University Ames IA 50011-3150 USA Figen Ltd. PO Box 31960101 Seinajoki Finland Smithfield Premium Genetics 316 W. Charity Rd Rose Hill NC 28458 USA

Background： The overall breeding objective for a nucleus swine selection program is to improve crossbred commercial performance. Most genetic improvement programs are based on an assumed high degree of positive relationship between purebred performance in a nucleus herd and their relatives＇ crossbred performance in a commercial herd. The objective of this study was to examine the relationship between purebred and crossbred sow longevity performance. Sow longevity was defined as a binary trait with a success occurring if a sow remained in the herd for a certain number of parities and including the cumulative number born alive as a measure of reproductive success. Heritabilities, genetic correlations, and phenotypic correlations were estimated using ***： Results indicated little to no genetic correlations between crossbred and purebred reproductive *** indicates that selection for longevity or lifetime performance at the nucleus level may not result in improved longevity and lifetime performance at the crossbred level. Early parity performance was highly correlated with lifetime performance indicating that an indicator trait at an early parity could be used to predict lifetime performance. This would allow a sow to have her own record for the selection trait before she has been removed from the ***： Results from this study aid in quantifying the relationship between purebred and crossbred performance and provide information for genetic companies to consider when developing a selection program where the objective is to improve crossbred sow performance. Utilizing crossbred records in a selection program would be the best way to improve crossbred sow productivity.

关键词： Binary traits Sow longevity Threshold model

心血管造影和介入学会／血管内科学会（SCAI／SVM）颈动脉支架置入术培训及资格认证专家共识声明

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国际脑血管病杂志 2017年第5期25卷 385-395页

作者： Herbert D. Aronow Tyrone J. Collins william A. gray Michael R. Jaff Bryan W. Kluck Rajah A. G. Patel Kenneth A. Rosenfield Robert D. Safian Piotr S. Sobieszczyk Siddharth A. Wayangankar Christopher J. White 胡挺段振晖马敏敏 From the Cardiovascular Institute of RI Alpert Medical School of Brown University Providence Rhode Island Ochsner Medical Center New Orleans Los Angeles Columbia University Medical Center New York New York Massachusetts General Hospital Boston Massachusetts Lehigh Valley Hospital Allentown Penniosylvania Beaumont Health Royal Oak Michigan Brigham and Women's Hospital Boston Massachusetts Cleveland Clinic Cleveland Ohio 南京大学医学院附属金陵医院(南京军区南京总医院)神经内科 210002

颈动脉支架置入术（carotid artery stcnting，CAS）已成为心血管内科项目针对卒中预防提供的治疗方案中不可或缺的一部分。该专家共识声明的目的在于为这些项目提供医师培训和资格认证方面的指导，从而促进CAS安全有效地融入临床实践... 详细信息

颈动脉支架置入术（carotid artery stcnting，CAS）已成为心血管内科项目针对卒中预防提供的治疗方案中不可或缺的一部分。该专家共识声明的目的在于为这些项目提供医师培训和资格认证方面的指导，从而促进CAS安全有效地融入临床实践。自从2005年《颈动脉支架置入术临床能力声明》发表以来，介入器械出现了大量创新，众多临床试验和观察性研究发表，积累了丰富的真实世界临床经验，而且有健全的国家质量改进计划的广泛参与。总的来说，这些进展已导致在患者合理选择以及安全有效实施CAS所需的认知、技术和临床技能方面发生了实质性变化。因此，我们总结出版了这份指南，旨在介绍培训路径，概述能力要素，提供转归随访策略，明确设施、设备和人员要求，并提出维持CAS能力的标准。

关键词：颈动脉狭窄颈动脉支架专家共识文件卒中