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Method of Formation of Waveguides on the Basis of Any Polymeric Materials

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World Journal of Nano Science and Engineering 2015年第4期5卷 213-218页

作者： Valentin Tsvetkov Sergei Pasechnik Aleksei Dronov Jacob Y. l. Ho vladimir Chigrinov Hoi-Sei Kwok Problem laboratory of Molecular Acoustics Moscow State University of Instrument Engineering and Computer Sciences Moscow Russia National Research University of Electronic Technology Moscow Zelenograd Russia State Key laboratory on Advanced Displays and Optoelectronics Technologies Clear Water Bay Kowloon Hong Kong China

This paper describes a new type of polymeric waveguides which has the core, cladding medium and active nodes made from the same material. Part of the polymer is removed in cladding medium by formation of nanopores. The pores can be filled with liquid crystals (lC) in order to create an active composite medium needed for electrically controlled nodes formation.

关键词： Polymeric Materials Nanopores Waveguides Optical

微观结构对MOCVD制备氧化铬涂层氢渗透性能的影响

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稀有金属 2018年第4期42卷 443-448页

作者：何迪李帅刘晓鹏 Stolyarov vladimir leonidovich Pavel Stabnikov Vladislav Krisyuk 北京有色金属研究总院能源材料与技术研究所北京100088 俄罗斯国家研究中心库尔恰托夫研究所物理化学技术部莫斯科109807 俄科院西伯利亚分院尼古拉耶夫无机化学研究院新西伯利亚630090

利用金属有机化学气相沉积（MOCVD）在316l不锈钢表面分别制备了（110）择优取向和随机取向的氧化铬涂层。利用扫描电子显微镜（SEM）和X射线衍射分析（XRD）分别对涂层的显微结构和相结构进行了表征。采用气相氘渗透方法对涂层的氢渗... 详细信息

利用金属有机化学气相沉积（MOCVD）在316l不锈钢表面分别制备了（110）择优取向和随机取向的氧化铬涂层。利用扫描电子显微镜（SEM）和X射线衍射分析（XRD）分别对涂层的显微结构和相结构进行了表征。采用气相氘渗透方法对涂层的氢渗透性能进行测试。结果表明,择优取向的氧化铬涂层氢渗透率为P=4.58×10^-6exp（-112688/RT）（mol·m^-1·s^-1·Pa^0.5）,而随机取向的氧化铬涂层氢渗透率为P=1.20×10^-5exp（-102057/RT）（mol·m^-1·s^-1·Pa^0.5）。在873,923,973 K时,择优取向涂层的氢渗透阻挡因子（PRF）分别为38.2,21.1和13.1,而随机取向涂层的PRF仅为2.6,1.9和1.5。对涂层显微结构的分析表明,择优取向的氧化铬涂层晶粒规则排列,易于得到结构致密的涂层;而随机取向的涂层,晶粒排列杂乱无序,易在涂层中产生通孔等缺陷,使得涂层的氢渗透性能出现大幅降低。

关键词：阻氢渗透涂层氧化铬金属有机化学气相沉积微观结构

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局部桩筏基础的设计与施工

地球科学与环境学报 2009年第2期31卷 188-194页

作者： Ron Xia vladimir Dolezel l Rak McClymont and Rak Engineers公司加拿大安大略多伦多L3R485 巴尔杜比采大学捷克共和国巴尔杜比采53210

以加拿大多伦多市某工程为例,介绍了在复杂地质条件下采用局部桩筏基础(PPRF)的设计及施工问题;探讨了设计PPRF的决定性因素;在保持PPRF设计的完整性前提下,提出了单位沉降量的准则,并用于筏板和桩的设计;计算了PPRF的滑移及转动;最后,... 详细信息

以加拿大多伦多市某工程为例,介绍了在复杂地质条件下采用局部桩筏基础(PPRF)的设计及施工问题;探讨了设计PPRF的决定性因素;在保持PPRF设计的完整性前提下,提出了单位沉降量的准则,并用于筏板和桩的设计;计算了PPRF的滑移及转动;最后,采用有效方法对该工程采用的局部桩筏基础进行了计算分析。结果表明,PPRF的设计主要取决于侧向土压力、分布不均的建筑荷载以及地基土的非均匀承载力,工程桩应主要布置在沉降较大的区域,即位于筏板基础承受高压力而土体承载力较低的西北部。探讨局部桩筏基础的设计与施工为该类型工程的基础设计提供了一个新的解决途径。

关键词：地基基础设计与施工数值模拟桩筏基础

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全新版21世纪大学英语视听说教程 4

Global Optimization of Nonlinear Blend-Scheduling Problems

丛书名： “十二五”普通高等教育本科国家级规划教材

2013年

作者：王美娣 vladimir Ostapowicz

本书共分为8个单元，每个单元有5个板块组成：视频导入、视听说、语言文化的同化、补充视听说以及演示、发音和辩论。

ISBN: (纸本)9787309095708

本书共分为8个单元，每个单元有5个板块组成：视频导入、视听说、语言文化的同化、补充视听说以及演示、发音和辩论。

关键词：口语听力高等教育英语教材

来源：畅想之星图书光盘版（南... 评论

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Engineering 2017年第2期3卷 188-201页

作者： Pedro A.Castillo Castillo Pedro M.Castro vladimir Mahalec Department of Chemical Engineering McMaster UniversityHamiltonON L8S 4L8Canada Center for Mathematics Fundamental Applications and Operations ResearchFaculty of SciencesUniversity of LisbonLisbon 1749-016Portugal

The scheduling of gasoline-blending operations is an important problem in the oil refining industry. Thisproblem not only exhibits the combinatorial nature that is intrinsic to scheduling problems, but alsonon-convex nonlinear behavior, due to the blending of various materials with different quality *** this work, a global optimization algorithm is proposed to solve a previously published continuous-timemixed-integer nonlinear scheduling model for gasoline blending. The model includes blend recipe optimi-zation, the distribution problem, and several important operational features and constraints. The algorithmemploys piecewise McCormick relaxation （PMCR） and normalized multiparametric disaggregation tech-nique （NMDT） to compute estimates of the global optimum. These techniques partition the domain of oneof the variables in a bilinear term and generate convex relaxations for each partition. By increasing the num-ber of partitions and reducing the domain of the variables, the algorithm is able to refine the estimates ofthe global solution. The algorithm is compared to two commercial global solvers and two heuristic methodsby solving four examples from the literature. Results show that the proposed global optimization algorithmperforms on par with commercial solvers but is not as fast as heuristic approaches.

关键词： Global optimization Nonlinear gasoline blending Continuous-time scheduling model Piecewise linear relaxations

The Effect of Micro-Structure on Fatigue Behaviour of Intact Sandstone

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International Journal of Geosciences 2011年第3期2卷 240-247页

作者： Manoj N.Bagde vladimir Petros Central Institute of Mining and Fuel Research Regional CentreMECL ComplexNagpurIndia Faculty of Mining and Geology VSB-TUOstravaCzech Republic

With advent of servo-controlled stiff testing machines, it is now possible to conduct tests on a rock in the laboratory under different variable controlled conditions. In this paper, cyclic fatigue behaviour of intact sandstone obtained from the rock burst prone coal mine in the Czech Republic were presented. Tests were conducted on MTS- 816 rock test system in the laboratory on intact rock samples of l/D ratio 2 under cyclic loading frequency of 0.1, 1, 3, 5, 7 and 10 Hz at amplitude of 0.1 mm under displacement control mode until failure of the samples in uni-axial compression. From, the primary results it was observed that at low loading frequency range of 0.1 to 3 Hz, there was degradation of the rock samples in terms of fatigue strength and modulus. While, at higher frequency rose-up in strength and deformation properties were observed. It was observed that the machine behaviour in terms of amplitude at higher loading frequencies might be affecting the results. It seemed that machine behaviour of servo-hydraulic testing system was also dependent on rock type under investigation.

关键词： Cyclic loading Fatigue Micro-Structure Machine Behaviour Rock Memory

表儿茶素对牛磺酸脱氧胆酸诱导Huh7细胞凋亡的作用

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中国中药杂志 2009年第10期34卷 1272-1275页

作者：余晶 vladimir Khaoustov 徐玉敏 Boils Yoffe 广西中医学院第一附属医院肝病内科广西南宁530023 贝勒医学院医学系迈克尔德贝基退伍军人医疗中心美国德克萨斯州休斯敦77030

目的:探索表儿茶素对牛磺酸脱氧胆酸诱导Huh7细胞凋亡的抑制作用及其作用机制。方法:对牛磺酸脱氧胆酸(TDCA)400μmol.l-1和表儿茶素干预培养48 h的Huh7细胞,应用MTT法检测细胞活力,荧光探针测定细胞内活性氧(ROS)生成量,荧光caspase-3/... 详细信息

目的:探索表儿茶素对牛磺酸脱氧胆酸诱导Huh7细胞凋亡的抑制作用及其作用机制。方法:对牛磺酸脱氧胆酸(TDCA)400μmol.l-1和表儿茶素干预培养48 h的Huh7细胞,应用MTT法检测细胞活力,荧光探针测定细胞内活性氧(ROS)生成量,荧光caspase-3/7分析法探测细胞凋亡,免疫蛋白印迹测定促凋亡蛋白Bax,细胞色素C和磷酸化p38蛋白激酶含量。结果:TDCA孵育可诱导Huh7细胞凋亡,存活率下降(54.24±2.20)%,细胞经表儿茶素与TDCA共孵育后,细胞存活率提高到(85.64±0.84)%;表儿茶素能显著抑制TDCA引起的Huh7细胞ROS生成,caspase-3/7蛋白酶活性升高。ROS生成下降54.2%,caspase-3/7活性下降52.3%(P<0.01)。表儿茶素抑制TDCA诱导Huh7细胞凋亡随剂量增加抑制作用加强。表儿茶素抑制TDCA诱导促凋亡蛋白Bax表达,细胞色素C释放及p38蛋白激酶磷酸化。结论:表儿茶素抑制TDCA诱导Huh7细胞线粒体损伤而导致的细胞凋亡。其作用机制是通过减少细胞内活性氧和促凋亡蛋白Bax生成,抑制细胞色素C释放及p38蛋白激酶磷酸化。

关键词：表儿茶素牛磺酸脱氧胆酸活性氧凋亡

Metformin prevents hormonal and metabolic disturbances and 1,2-dimethylhydrazine-induced colon carcinogenesis in non-diabetic rats

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Cancer Biology & Medicine 2017年第1期14卷 100-107页

作者： Viktoria V.Bekusova Vasily M.Patsanovskii Alexander D.Nozdrachev Alexandr P.Trashkov Margarita R.Artemenko vladimir N.Anisimov Department of Physiology St.Petersburg State UniversitySt.Petersburg 197183Russia I.P.Pavlov Institute of Physiology Russian Academy of Sciences St.Petersburg 199034Russia Deparment of Experimental Pharmacology I.M.Sechenov Institute of Evolutionary Physiology and BiochemistryThe Russian Academy of SciencesSt.Petersburg 194223Russia Department of Carcinogenesis and Oncogerontology N.N.Petrov Research Institute of OncologySt.Petersburg 197758 Russia

Effects of two doses of the anti-diabetic drug, metformin （MF）, on hormonal and metabolic levels of serum of non-diabetic male Wistar rats with 1,2-dimethylhydrazine （DMH）-induced colon tumor adenocarcinomas were studied. Carcinogenesis in the animals was also observed. Rats with DMH-induced colon adenocarcinomas had elevated levels of serum glucose, insulin, insulin- like growth factor-l, total cholesterol, triglycerides, catalase, malonic dialdehyde, glycated hemoglobin, aspartate aminotransferase, and alanine aminotransferase and decreased hemoglobin. Treatment with two doses of MF normalized maiority of these changes in DMH-treated rats, whereas the drug was ineffective in rats without DMH treatment. The only exception was the decreased triglyceride levels in MF-treated rats. A 100 mg/kg dose of MF increased DMH-induced exophytic colon carcinomas and decreased endophytic tumors compared with untreated rats. Moreover, both MF doses increased DMH-induced and highly differentiated tumors and decreased the invasiveness of colon carcinomas compared with rats provided with DMH and water. Therefore, effects of MF on metabolic homeostasis are critical for preventing colon cancer.

关键词： Colon cancer prevention 1,2-dimethylhydrazine mefformin rat

Comparison of indirect immunofluorescence and western blot method in the diagnosis of hantavirus infections

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World Journal of Methodology 2021年第6期11卷 294-301页

作者： Tatjana Vilibic-Cavlek ljubo Barbic vladimir Stevanovic vladimir Savic Anna Mrzljak Maja Bogdanic Irena Tabain School of Medicine University of ZagrebZagreb 10000Croatia Department of Virology Croatian Institute of Public HealthZagreb 10000Croatia Department of Microbiology and Infectious Diseases with Clinic Faculty of Veterinary MedicineUniversity of ZagrebZagreb 10000Croatia Poultry Centre Croatian Veterinary InstituteZagreb 10000Croatia Department of Gastroenterology and Hepatology University Hospital ZagrebZagreb 10000Croatia

BACKGROUND Serologic cross-reactivity between hantaviruses often complicates the interpretation of the *** To analyze the diagnostic value of indirect immunofluorescence assay(IFA)and western blot(WB)in the diagnosis of hantavirus *** One hundred eighty-eight serum samples from Puumala(PUUV)and Dobrava(DOBV)orthohantavirus infected patients were *** was performed using commercial tests(Euroimmun,lübeck,Germany).RESUlTS Using IFA,49.5%of acute-phase samples showed a monotypic response to PUUV,while 50.5% cross-reacted with other *** overall cross-reactivity was higher for immunoglobulin G(IgG)(50.0%)than for immunoglobulin M(IgM)(25.5%).PUUV IgM/IgG antibodies showed low/moderate reactivity with orthohantaviruses Hantaan(12.3%/31.5%),Seoul(7.5%/17.8%),DOBV(5.4%/28.1%),and Saaremaa(4.8%/15.7%).Both DOBV IgM and IgG antibodies were broadly reactive with Hantaan(76.2%/95.2%),Saaremaa(80.9%/83.3%),and Seoul(78.6%/85.7%)and moderate with PUUV(28.5%/38.1%).Using a WB,serotyping was successful in most cross-reactive samples(89.5%).CONClUSION The presented results indicate that WB is more specific than IFA in the diagnosis of hantavirus infections,confirming serotype in most IFA cross-reactive samples.

关键词： Hantaviruses Serology Cross-reactivity Indirect immunofluorescence Western blot