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活化氢气氛下的无助焊剂焊接

电子工业专用设备 2016年第8期45卷 1-4,34页

作者： C.Christine Dong Richard E.Patrick Russell A.Siminski tim bao Air Products and Chemicals AllentownPA 18195-1501USA Air Products and Chemicals Shanghai 201203China

介绍了一种新颖的基于电子附着(Electron Attachment,EA)原理的氢气活化技术,可以实现在大气压力和正常焊接温度下的无助焊剂焊接。该技术有望被应用于电子封装行业的诸多领域。

关键词：电子附着活化氢无助焊剂焊接电子封装氧化物去除助焊剂残留氢负离子

采用新型活化氢技术进行大规模无助焊剂晶圆凸点回流焊

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电子工业专用设备 2017年第3期46卷 1-5,25页

作者： C.Christine Dong Richard E.Patrick Gregory K.Arslanian tim bao Kail Wathne Phillip Skeen Air Products and Chemicals Sikama International Inc.

介绍了Air Products和Sikama International共同努力获得的一项新成果。一种以电子附着方式为基础的新型活化氢技术被首次应用于无助焊剂晶圆凸点回流焊。具有这项技术的原型焊炉的设计、制造及初步测试工作均已完成。这一成果即将推向... 详细信息

介绍了Air Products和Sikama International共同努力获得的一项新成果。一种以电子附着方式为基础的新型活化氢技术被首次应用于无助焊剂晶圆凸点回流焊。具有这项技术的原型焊炉的设计、制造及初步测试工作均已完成。这一成果即将推向市场。

关键词：电子附着技术无助焊剂晶圆回流焊

耦合模式FGOALS_s模拟的亚澳季风年际变率及ENSO

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大气科学 2009年第2期33卷 285-299页

作者：吴波周天军 tim Li 包庆中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室北京100029 中国科学院研究生院北京100049 IPRC and Department of Meteorology University of Hawaii2525 Correa Rd.HonoluluHI 96822USA

本文评估了中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室(LASG/IAP)新一代耦合气候模式FGOALS_s对亚澳季风和ENSO的模拟。结果表明,FGOALS_s可以模拟出亚澳季风的主要气候态特征。FGOALS_s模拟的ENSO事件振... 详细信息

本文评估了中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室(LASG/IAP)新一代耦合气候模式FGOALS_s对亚澳季风和ENSO的模拟。结果表明,FGOALS_s可以模拟出亚澳季风的主要气候态特征。FGOALS_s模拟的ENSO事件振幅为观测值的70%,同时它合理再现了ENSO周期的非规则性。FGOALS_s可以定性模拟出ENSO的主要空间特征。当赤道东太平洋SST升高时,印度洋和西太平洋海表面气压升高,而东太平洋海表面气压降低。FGOALS_s的主要缺陷在于模拟的ENSO峰值多出现在春季和夏季。与ENSO振幅偏小相反,FGOALS_s模拟的亚澳季风年际变率振幅大于观测。但是观测中亚澳季风年际变率与ENSO暖位相的显著负相关关系,在模式中没有得到合理再现,原因部分可归之于耦合模式在ENSO锁相模拟上的缺陷。由于模式模拟的ENSO峰值出现在北半球春季和夏季,Walker环流异常下沉支移动到西北太平洋,其激发出的异常反气旋位置较之观测要偏东,导致印度季风降水和El Nio的负相关关系不显著;在北半球冬季,由于模式中的赤道东太平洋SST暖异常较弱,亚澳季风响应也偏弱。此外,由于赤道东太平洋SST异常向西伸展,观测中位于澳洲季风区的辐散中心向西偏移,最终导致模式中澳洲季风降水与ENSO的负相关同样不显著。

关键词：气候系统模式亚澳季风 ENSO

Anthropogenic,detritic and atmospheric soil-derived sources of lead in an alpine poor fen in northeast China

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Journal of Mountain Science 2016年第2期13卷 255-264页

作者： bao Kun-shan SHEN Ji WANG Guo-ping TSERENPIL Shurkhuu State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of Sciences Key Laboratory of Wetland Ecology and Environment Northeast Institute of Geography and AgroecologyChinese Academy of Sciences Nuclear Research Center National University of Mongolia Nuclear Application and Research Center Akdeniz University

Ombrotrophic bogs are faithful archive of atmospheric metal deposition, but the potential for fens to reconstruct environmental change is often underestimated. In this study, some new data on the Pb depositional history in northeast China were provided using two ^210Pb-dated peat sequences from a poor fen in the Fenghuang Mountain of Heilongjiang province. Anthropogenic, detritic and atmospheric soil sources were discriminated using a two-step sequential digestion （weak acid leaching to liberate mobile Pb which is often regarded as anthropogenic Pb, especially for recent samples） and a ratio of unsupported ^210Pb and supported ^210Pb with the logic of that the ^214Pb mainly represents the residual detritus （constant throughout the core） and the unsupported ^210Pb arises from atmospheric fallout. A higher ^210Pb/^214Pb suggests more contributions from atmospheric deposition to the Pb content in the peat, and a ratio of 10 was defined to indicate the boundary between detrific input and atmospheric deposition. The detritic Pb was estimated to be 10-13 mg·kg^-1, the anthropogenic Pb ranged from 10-80 mg·kg^-1, and the atmospheric soil-derived Pb ranged from 〈 5 mg·kg^-1 to 30 mg·kg^-1. The history of anthropogenic Pb pollution over the last 150 years was reconstructed, and the calculated Pb deposition rate （AR Pb） ranged from 5 to 56 mg·m^-2·yr^-1. Using Ti as a reliable reference, the enrichment factor of Pb （EF Pb） relative to the upper continental crust was calculated. Both AR Pb and EF Pb increased with time, especially after the foundation of the People＇s Republic of China. This is consistent with increasing industrialization and coal burning in the last 60 years in northeast China. The present record of anthropogenic Pb deposition was consistent with the previous reports and an increasing trend of environmental pollution due to anthropogenic activities, in contrasts to Europe and North America which have experienced a major environmental cleanup. For the first tim

关键词： Ombrotrophic bog Minerotrophicpeatland Pb deposition rate Enrichment factor ^210Pb and ^137Cs Metal pollution

Study of Defect-Layers Effect in Ferroelectric Thin Film with Transverse Ising Model

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Communications in Theoretical Physics 2011年第12期56卷 1057-1062页

作者： WANG Chun-Dong TENG bao-Hua Kwok So-Ying LU Zhen-Zhen YUEN Muk-Fung Center of Super-Diamond and Advanced Films （COSDAF） and Department of Physics and Materials Science City University of Hong Kong Hong Kong SAR China School of Physical Electronics University of Electronic Science and Technology of China Chengdu 610054 China

By taking into account the two-spin interaction in the transverse Ising model （tim）, the influence of the defect layers （including JB and ΩB） on the polarization and Curie temperature are calculated numerically, within the framework of the decoupling approximation under Green＇s function. The numerical results show that the polarization and Curie temperature will both become large sensitively due to the large values of JB and the small value of ΩB of the defect layers. Meanwhile, the dependence of the crossover values of the exchange interaction JA, the transverse field ΩA of the bulk material on the exchange interaction JB and the transverse field ΩB of the defect layers are shown in 3-Dimensional （3-D） figures for the first time. Moreover, the transition features of the ferroelectric thin film with defect layers are presented.

关键词： ferroelectrics phase transitions defect-layer

Identification of differential proteins in colorectal cancer cells treated with caffeic acid phenethyl ester

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World Journal of Gastroenterology 2014年第33期20卷 11840-11849页

作者： Yu-Jun He Wan-Ling Li bao-Hua Liu Hui Dong Zhi-Rong Mou Yu-Zhang Wu Institute of Immunology of PLA the Third Military Medical University Department of General Surgery Daping Hospital and Research Institute of Surgery the Third MilitaryMedical University

AIM: To investigate the molecular mechanisms of the anti-cancer activity of caffeic acid phenethyl ester (CAPE).

关键词： Caffeic acid phenethyl ester Colorectal cancer Proteomics Two-dimensional electrophoresis Mass spectrometry

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一种新的碎片图像镶嵌技术

西安电子科技大学学报 2007年第2期34卷 249-253页

作者：杨占龙郭宝龙西安电子科技大学智能控制与图像工程研究所陕西西安710071

提出一种生成合成图像的碎片图像镶嵌算法.这种算法是将许多任意形状的碎片图像进行镶嵌生成最终需要的图像.首先利用图像融合技术将原始图像提取出来的边缘信息图像与一幅相同尺寸大小的沃龙诺依图像进行合成,然后采用优化近似查询中... 详细信息

提出一种生成合成图像的碎片图像镶嵌算法.这种算法是将许多任意形状的碎片图像进行镶嵌生成最终需要的图像.首先利用图像融合技术将原始图像提取出来的边缘信息图像与一幅相同尺寸大小的沃龙诺依图像进行合成,然后采用优化近似查询中关于数据结构的“反极策略”来加速搜索过程,根据模式识别中的形状相似技术在数据库中查找与需要填充的区域形状最接近的碎片图像进行镶嵌.试验结果证明该算法在保证图像质量的前提下比JIM算法快近50倍.

关键词：图像镶嵌沃龙诺依图反极策略边缘检测图像增强

Curcumin alleviates experimental colitis via a potential mechanism involving memory B cells and Bcl-6-Syk-BLNK signaling

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World Journal of Gastroenterology 2022年第40期28卷 5865-5880页

作者： Si-Yi Wei Tian-Tian Wu Jia-Qi Huang Zeng-Ping Kang Meng-Xue Wang You-bao Zhong Wei Ge Bu-Gao Zhou Hai-Mei Zhao Hai-Yan Wang Duan-Yong Liu Department of Postgraduate Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina Laboratory Animal Research Center for Science and Technology Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina Affiliated Hospital Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina Formula-Pattern Research Center Jiangxi University of Chinese MedicineNanchang 330004Jiangxi ProvinceChina

BACKGROUND Immune dysfunction is the crucial cause in the pathogenesis of inflammatory bowel disease(IBD),which is mainly related to lymphocytes(T or B cells,including memory B cells),mast cells,activated neutrophils,and *** the precursor of B cells,the activation of memory B cells can trigger and differentiate B cells to produce a giant variety of inducible B cells and tolerant B cells,whose dysfunction can easily lead to autoimmune diseases,including *** To investigate whether or not curcumin(Cur)can alleviate experimental colitis by regulating memory B cells and Bcl-6-Syk-BLNK *** Colitis was induced in mice with a dextran sulphate sodium(DSS)solution in drinking *** mice were given Cur(100 mg/kg/d)orally for 14 consecutive *** colonic weight,colonic length,intestinal weight index,occult blood scores,and histological scores of mice were examined to evaluate the curative *** levels of memory B cells in peripheral blood of mice were measured by flow cytometry,and IL-1β,IL-6,IL-10,IL-7A,and TNF-αexpression in colonic tissue homogenates were analyzed by enzyme-linked immunosorbent *** blot was used to measure the expression of Bcl-6,BLNK,Syk,and other signaling pathway related *** After Cur treatment for 14 d,the body weight,colonic weight,colonic length,colonic weight index,and colonic pathological injury of mice with colitis were *** secretion of IL-1β,IL-6,TNF-α,and IL-7A was statistically decreased,while the IL-35 and IL-10 levels were considerably *** of memory B cell subsets in colitis mice was confirmed by a remarkable reduction in the expression of IgM,IgG,IgA,FCRL5,CD103,FasL,PD-1,CD38,and CXCR3 on the surface of CD19^(+)CD27^(+)B cells,while the number of CD19^(+)CD27^(+)IL-10^(+)and CD19^(+)CD27^(+)tim-3^(+)B cells increased *** addition,Cur significantly inhibited the protein levels of Syk,p-Syk,Bcl-6,and CIN85,and increased BLNK and p-BLNK

关键词： Curcumin Experimental colitis Memory B cell Bcl-6 BLNK

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美国LOCUS学生统计水平测试述评

外国中小学教育 2019年第7期 72-80页

作者：贺睿杰鲍建生华东师范大学数学科学学院

“统计概念理解水平”测试是由美国佛罗里达大学tim Jaccobe博士主持的一个评价中学生统计水平的项目。该测试很好地了反映了统计学科的特点,并且能够有效评测中学生统计理解水平。除此之外,该测试的理论基础、开发过程、试卷编写等方面... 详细信息

“统计概念理解水平”测试是由美国佛罗里达大学tim Jaccobe博士主持的一个评价中学生统计水平的项目。该测试很好地了反映了统计学科的特点,并且能够有效评测中学生统计理解水平。除此之外,该测试的理论基础、开发过程、试卷编写等方面,为我国统计教学的评价和研究带来了启示。

关键词：统计教学统计素养教育评价证据中心设计