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A G^E/Equation of State Mixing Rule for Vapor-Liquid Equilibria

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Chinese Journal of Chemical Engineering 1998年第3期6卷 14-28页

作者：屈一新汪文川 Lee y.y. Chung K.y. Lee y.W. Korea Institute of Science and Technology SeoulKorea

A new excess Gibbs free energy.equation of state ty.e mixing 0rule was derived by.emoving the infinite pressure boundary.condition imposed by.Wong and *** mixing rulewas extensively.tested in terms of a comprehensive data base,consisting of 52 simple nonpolar-nonpolar,carbon dioxide containing,hy.rocarbon-hy.rocarbon,CFC,polar-polar,nonpolar-polarbinary.and multicomponent *** on the complete predictive capability.a comparisonbetween the Wong-Sandler and the mixing rule proposed was *** results indicate that thenew mixing rule is in general superior to the Wong-Sandler’s,and the binary.interaction parameteras required by.the latter is removed,which reduces computing effort and is reliable in predictions ofvapor-liquid equilibria from low pressures to high pressures.

关键词： vapor-liquid equilibria equation of state mixing rule

关节松动术结合中医推拿手法治疗膝关节骨关节炎的临床研究

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中国康复医学杂志 2004年第2期19卷 126-127页

作者：詹文吉林俊山李兆文李小国福建省漳州市中医院康复科漳州363000

目的:探讨关节松动术结合中医推拿手法治疗膝关节骨关节炎的疗效。方法:对60例膝关节骨关节炎患者随机分成治疗组和对照组各30例。治疗组采用关节松动术结合中医推拿手法,对照组则只行关节松动术,隔天1次,15次1疗程,治疗前后按膝关节功... 详细信息

目的:探讨关节松动术结合中医推拿手法治疗膝关节骨关节炎的疗效。方法:对60例膝关节骨关节炎患者随机分成治疗组和对照组各30例。治疗组采用关节松动术结合中医推拿手法,对照组则只行关节松动术,隔天1次,15次1疗程,治疗前后按膝关节功能评定评分法进行评定。结果:治疗前2组患者膝关节功能评分比较差异无显著性(P>0.05);治疗后2组评分与治疗前比较均明显升高(P<0.001)。治疗组与对照组比较,膝关节功能改善更显著(P<0.005)。结论:应用关节松动术结合中医推拿手法治疗膝关节骨关节炎疗效显著。

关键词：关节松动术中医推拿手法治疗膝关节骨关节炎康复治疗 OA

Whitefly.feeding behavior and retention of a foregut-borne crinivirus exposed to artificial diets with different pH values

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Insect Science 2017年第6期24卷 1079-1091页

作者： Jacly. S. Zhou Angel y. S. Chen Martin Drucker Nicole H. Lopez Aly.sa Carpenter James C. K. Ng Department of Plant Pathology.and Microbiology and Center for Disease Vector Research University of California Riverside California USA INRA UMR BGPI Plant Pathogen Interactions Montpellier Cedex 5 France Barry.University Miami Florida USA East Stroudsburg University E. Stroudsburg Pennsylvania USA

Transmission of plant viruses by.phy.ophagous hemipteran insects encompasses complex interactions underly.ng a continuum of processes involved in virus acquisition, retention and inoculation combined with vector feeding behavior. Here, we investigated the effects of dietary.pH on whitefly.（Bemisia tabaci） feeding behavior and release of Lettuce infectious y.llows virus （LIy.） virions retained in the vector＇s foregut. Electrical penetration graph analy.is revealed that variables associated with whitefly.probing and ingestion did not differ significantly.in pH （4, 7.4, and 9） adjusted artificial diets. To investigate virus retention and release, whiteflies allowed to acquire LIy. virions in a pH 7.4 artificial diet were fed pH 4, 7.4, or 9 virion-free artificial （clearing） diets. Immunofluorescent localization analy.es indicated that virions remained bound to the foreguts of approximately.20%-24% of vectors after they.fed on each of the 3 pH- adjusted clearing diets. When RNA preparations from the clearing diets were analy.ed by.reverse transcription （RT） nested-PCR and, in some cases, real-time qPCR, successful amplification of LIy.-specific sequence was infrequent but consistently.repeatable for the pH 7.4 diet but never observed for the pH 4 and 9 diets, suggesting a weak pH-dependent effect for virion release. Viruliferous vectors that fed on each of the 3 pH-adjusted clearing diets transmitted LIy. to virus-free plants. These results suggest that changes in pH values alone in artificial diet do not result in observable changes in whitefly.feeding behaviors, an observation that marks a first in the feeding of artificial diet by.whitefly.vectors; and that there is a potential causal and contingent relationship between the pH in artificial diet and the release/inoculation of foregut bound virions.

关键词： Crinivirus dietary.pH inoculation noncirculative semipersistent transmission retention whitefly

新疆乌鲁木齐地区汉族人群正常牙合Ricketts分析法头影测量分析

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新疆医科大学学报 2006年第2期29卷 153-155页

作者：满一阿达莱提.阿合买提江林兆全新疆医科大学第五附属医院口腔科新疆乌鲁木齐830054 新疆医科大学口腔医学系新疆乌鲁木齐830054

目的:研究乌鲁木齐地区汉族成人正常牙合Ricketts分析法头影测量值范围,并分析其颅颌硬组织形态特征。方法:选取乌鲁木齐地区81例汉族成年人恒牙期正常牙合拍摄头颅定位侧貌X光数字式图像,采用Ricketts分析法选取面轴角、面角、下颌平... 详细信息

目的:研究乌鲁木齐地区汉族成人正常牙合Ricketts分析法头影测量值范围,并分析其颅颌硬组织形态特征。方法:选取乌鲁木齐地区81例汉族成年人恒牙期正常牙合拍摄头颅定位侧貌X光数字式图像,采用Ricketts分析法选取面轴角、面角、下颌平面角、颏角、下面高角、下颌弓角、y.角、A点突度、切牙倾斜度、切牙突距、颌面高度比等16项测量指标进行分析。结果:乌鲁木齐地区汉族人群颅颌前部较平直;前、后颅底较长;纵深较窄;牙弓突度相对后缩;面后份高度增大,面前份高度较短;颏突较小。男女性别间上颌突度、下颌支倾斜度、面高比及面型生长趋势存在差异。结论:乌鲁木齐地区汉族人群牙颌、颅颌硬组织形态具有本地区特征:直面型,鼻根点较为前挺,上颌突度缩小,额部较前突。女性颅颌纵向、横向深度均小于男性,女性具有突颌趋势,下颌倾斜度女性大于男性,下颌生长趋势女性为平均生长型,中间面型,男性为水平生长型,短面型。

关键词： Ricketts分析法头影测量汉族乌鲁木齐

摩擦动态滚动分析法估算三维花纹轮胎磨耗总量

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轮胎工业 2012年第7期32卷 408-416页

作者： J. R. Cho J. H. Choi y. S. Kim 吴淑华(摘译) 徐立(校) School of Mechanical Engineering Busan Korea Research & Development Institute of Midas IT Gyeonggi Korea 北京橡胶工业研究设计院

汽车轮胎胎面由许多花纹块和沟槽构成复杂图案,以提供轮胎的各项行驶性能,如牵引性能、制动性能、乘坐舒适性及排水性。轮胎与地面直接接触的面积有明信片大小,造成胎面磨耗的原因是轮胎与地面不可避免的滑动摩擦。轮胎磨耗不仅降低了... 详细信息

汽车轮胎胎面由许多花纹块和沟槽构成复杂图案,以提供轮胎的各项行驶性能,如牵引性能、制动性能、乘坐舒适性及排水性。轮胎与地面直接接触的面积有明信片大小,造成胎面磨耗的原因是轮胎与地面不可避免的滑动摩擦。轮胎磨耗不仅降低了行驶性能以及缩短轮胎寿命,

关键词：汽车轮胎胎面磨耗滑动摩擦花纹块三维估算滚动行驶性能

观测值质量定权的北斗多模导航RNP性能评估方法

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遥测遥控 2017年第1期38卷 47-57页

作者：姚鑫雨张晓林霍航宇北京航空航天大学北京100191

依据伪距测量误差与载噪比随机模型描述的卫星导航观测值质量,确定加权最小二乘法权矩阵。基于加权思想对北斗多模导航系统的精度、可用性及RAIM预测等RNP基础性能进行评估,准确反映北斗多模导航系统民航应用所需导航性能。仿真实验表明... 详细信息

依据伪距测量误差与载噪比随机模型描述的卫星导航观测值质量,确定加权最小二乘法权矩阵。基于加权思想对北斗多模导航系统的精度、可用性及RAIM预测等RNP基础性能进行评估,准确反映北斗多模导航系统民航应用所需导航性能。仿真实验表明,观测值质量定权的方法可以改善卫星导航系统的加权解算模型,提高BD2/GPS双模导航系统的导航精度。在"北斗二代"导航系统公开服务区域测试及"北京-上海"航路测试中,BD2/GPS双系统加权RNP性能评估结果满足国际民航组织对卫星导航系统民航应用的要求,且优于单一系统。

关键词：观测值质量伪距测量误差载噪比 RNP BD2/GPS

A Wavelength Monitoring Sy.tem Using Tunable MEMS Filter Calibrated by.F-P Laser

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光学学报 2003年第S1期23卷 615-616页

作者： H. y. Tam P. K. A. Wai W. H. Chung Photonics Research Center Department of Electrical Engineering The Hong Kong Polytechnic University Hong Kong SAR ChinaPhotonics Research Center Department of Electronic and Information Engineering The Hong Kong Polytechnic University Hong Kong SAR ChinaPhotonics Research Center Department of Electrical Engineering The Hong Kong Polytechnic University Hong Kong SAR China

We report a wavelength and power monitoring sy.tem based on a scanning MEMS filter as wavelength discriminator and a near threshold-biased Fabry.Perot diode laser as wavelength reference. This sy.tem is capable of mon... 详细信息

关键词： DWDM FP LD MEMS A Wavelength Monitoring Sy.tem Using Tunable MEMS Filter Calibrated by.F-P Laser by

Exact elastic impedance tensor for isotropic media

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Science China Earth Sciences 2015年第6期58卷 1350-1360页

作者： ZHANG Feng LI Xiangy.ng State Key.Laboratory.of Petroleum Resource and Prospecting China University of Petroleum

The existing expressions of elastic impedance,as the generalized form of acoustic impedance,represent the resistance of subsurface media to seismic waves of non-normal incidence,and thus include information on the shear-wave *** this sense,conventional elastic impedance is an attribute of the seismic reflection and not an intrinsic phy.ical property.of the subsurface *** derivation of these expressions shares the approximations made for reflectivity.such as weak impedance contrast andisotropic or weakly.anisotropic media,which limits the accuracy.of reflectivity.reconstruction and seismic *** this paper,we derive exact elastic impedance tensors of seismic P-and S-waves for isotropic media based on the stress-velocity.*** componentof the impedance tensor represents a unique mechanical property.of the *** of P-wave elastic impedance tensor components are discussed for seismic inversion and *** to sy.thetic data and real data shows the accuracy.and robust interpretation capability.of the derived elastic impedance in lithology.characterizations.

关键词： stress tensor velocity.tensor elastic impedance inversion reservoir characterization

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Critical Amino Acid Residues for Nicotine 5'-Hy.roxy.ation in Human Cy.2A Enzy.es

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Journal of Nanjing Medical University 2008年第6期22卷 338-345页

作者： Xiaoy.ng Hea Xu Xu Jian Shen Li Sun Anthony.y. H. Lu Clifford Weisel Juny.n Hong College of Life Sciences Shenzhen University Shenzhen 518060 Guangdong Province China Environmental Biomarker Shared Resource The Cancer Institute of New Jersey/Environmental and Occupational Health Sciences Institute NJ 08854 USA Aventis Pharmaceuticals NJ 08807 USA Department of Histology.& Embry.logy Guilin Medical College Guilin 541004Guangxi Province China College of Pharmacy Rutgers University NJ 088544 USA School of Public Health/EOHSl University of Medicine and Dentistry of New Jersey NJ 08854 USA

Objective： We have continued previous work in which we demonstrated that #117 and #372 amino acids contributed to the high activities of human Cy.2A13 in cataly.ing 4-methy.nitrosamino-1-（3-py.idy.）-1-butanone（NNK） and aflatoxin BI（AFB1） carcinogenic activation. The present study.was designed to identify.other potential amino acid residues that contribute to the different cataly.ic characteristics of two Cy.2A enzy.es, Cy.2A6 and Cy.2A13, in nicotine metabolism and provide insights of the substrate and related amino acid residues interactions. Methods： A series of reciprocally.substituted mutants of Cy.2A6lle^300→ Phe, Cy.2A6Gly.301aAla, Cy.2A6Ser^369 → Gly. Cy.2A13Phe^300→ Ile, Cy.2A13Ala^301 → Gly.and Cy.2A13Gly.369 → Set were generated by.site-directed mutagenesis/baculovirus-Sf9 insect cells expression. Comparative kinetic analy.is of nicotine 5＇hy.roxy.atin by.wild ty.e and mutant Cy.2A proteins was performed. Results：All amino acid residue substitutions at 300, 301 and 369 caused significant kinetic property.changes in nicotine metabolism. While Cy.2A6Ile^300→ Phe and Cy.2A6Gly.301→Ala mutations had notable cataly.ic efficiency.increases compared to that for the wild ty.e Cy.2A6, Cy.2A13Phe^300→Ile and Cy.2A13Ala^301→Gly.replacement introduced remarkable cataly.ic efficiency.decreases. In addition, all these cataly.ic efficiency.alterations were caused by.Vmax variations rather than Km changes. Substitution of #369 residue significantly.affected both Km and Vmax values. Cy.2A6Ser^369 → Gly.increase the cataly.ic efficiency.via a significant Km decrease versus Vmax enhancement, while the opposite effects were seen with Cy.2A13Gly.369 → Ser. Conclusion：#300, #301 and #369 residues in human Cy.2A6/13 play.important roles in nicotine 5＇ -oxidation. Switching #300 or #301 residues did not affect the Cy.2A protein affinities toward nicotine, although these amino acids are located in the active center. Set369 to Gly.substitution indirectly.affected nicotine binding b

关键词： Cy.2A6 Cy.2A13 nicotine 5'-hy.roxy.ation site-directed mutagenesis crucial amino acid residue