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Chemical Research in Chinese Universities 2011年第5期27卷 795-798页

作者： shao ming-bo wang Jian-hui Department of Chemistry College of Science Tianjin University Tianjin 300072 P. R. China

The reaction of a ruthenium carbide complex RuCl2（C：）（PCy3）2 with [H（Et2O）x]＋[BF4]- at a molar ratio of 1：2 produced a two-core ruthenium carbene complex, {[RuCl（=CHPCy3）（PCy3）]2（μ-Cl）3}＋·[BF4]-, in the form of a yellow-green crystalline solid in a yield of 94%. This two-core ruthenium complex is a selective catalyst for ring closing metathesis of unsubstituted terminal dienes. More importantly, no isomerized byproduct was observed for N-substrates when the two-core ruthenium complex was used as the catalyst at an elevated temperature（137 °C）, indicating that the complex is a chemo-selective catalyst for ring closing metathesis reactions.

关键词： Ruthenium carbene complex Ruthenium catalyst Ring closing metathesis Two-core

HZ associated production with decay in the Alternative Left-Right Model at CEPC and future linear colliders

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Chinese Physics C 2018年第9期42卷 71-78页

作者： Juan-Juan Niu Lei GRO shao-ming wang Department of Physics Chongqing University Chongqing 401331 China Institute of Theoretical Physics Chongqing University Chongqing 401331 China

In this study, Higgs and Z boson associated production with subsequent decay is attempted in the framework of alternative left-right model, which is motivated by superstring-inspired E_6 model at CEPC and future linear colliders. We systematically analyze each decay channel of Higgs with theoretical constraints and latest experimental methods. Due to the mixing of scalars in the Higgs sector, charged Higgs bosons can play an essential role in the phenomenological analysis of this process. Even though the predictions of this model for the signal strengths of this process are close to the standard model expectations, it can be distinct under high luminosity.

关键词： new physics Higgs symmetry breaking electron positron collider

HPV prevalence and genotyping in the cervix of Chinese women

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Frontiers of Medicine 2010年第3期4卷 259-263页

作者： shao-ming wang Jing LI You-Lin QIAO Department of Cancer Epidemiology Cancer Institute of Chinese Academy of Medical SciencesPeking Union Medical CollegeBeijing 100021China

The role of human papillomavirus(HPV)as an etiologic factor of cervical cancer has been firmly established,and prophylactic vaccines are now available and have been approved in many *** implies a promising future for cervical cancer prevention especially for countries with very limited access to ***,the vaccines are not accessible in China's Mainland at the moment,and much needs to be understood about the potential benefit when HPV vaccines are applied to Chinese women,and to make the vaccines more specific to Chinese *** article reviews advanced multi-center,hospital/population-based studies of most recent years,and aims to draw a definitive conclusion on HPV prevalence and genotyping in cervical cancer and precancerous lesions in China from the aspect of study population,geographic areas and time period.

关键词： human papillomavirus(HPV)genotyping cervical cancer precancerous lesions Chinese women

Preoperative localization and minimally invasive management of primary hyperparathyroidism concomitant with thyroid disease

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2007年第9期8卷 626-631页

作者： ZHENG Yi-xiong XU shao-ming wang Ping, CHEN Li Department of Surgery the Second Affiliated Hospital School of Medicine Zhejiang University Hangzhou 310009 China

The coexistence of thyroid diseases with primary hyperparathyroidism (PHPT) can present a challenge in the clinical diagnosis and management for these patients. This study aims to determine the frequency of coexisting thyroid gland lesions in a consecutive series patients with PHPT, and to analyze the clinical features, diagnosis and treatment of these patients. Twenty-two cases of a total of 52 PHPT patients who had synchronous thyroid and parathyroid pathology were surgically managed in this study. Thirteen patients had ipsilateral thyroid nodules, and 9 patients had thyroid nodules in contralateral or bilateral side. Seven patients underwent direct parathyroidectomy and hemithyroidectomy via a mini-incision (about 3 cm), while other 15 procedures were converted to Kocher incision. Seventeen nodular goiter (32.7%), 2 thyroiditis (3.8%), 2 thyroid adenoma (3.8%) and 1 thyroid carcinoma (1.9%) coexisting with parathyroid adenoma were pathologically diagnosed. The sensitivity of preoperative ultra-sonography (US) and methoxy-isobutyl-isonitrile (MIBI) scintigraphy for parathyroid lesions was 63.6% and 85.7%; and the overall positive predictive values for MIBI and US were 100% and 95.5% respectively. A high incidence of thyroid diseases that coexisted with PHPT in literatures was briefly reviewed. Our study illustrated the need for clinical awareness of concomitant PHPT and thyroid disease. A combination of US, computed tomography (CT) and MIBI scintigraphy would be recommended for preoperative localization of enlarged parathyroid adenoma and for evaluation of thyroid lesions. Synchronous treatment of asso-ciated thyroid abnormalities is desirable, and open minimally invasive surgical approach with additional resection of isolated ipsilateral thyroid nodules is possible in some of these patients.

关键词： Hyperparathyroidism Thyroid diseases Imaging diagnosis Surgical treatment

QCD corrections to e^+e^−→H^±W^∓in Type-I THDM at electron positron colliders

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Chinese Physics C 2020年第9期44卷 7-15页

作者： Qiang Yang Ren-You Zhang ming-ming Long shao-ming wang Wen-Gan Ma Jian-Wen Zhu Yi Jiang State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Department of Physics Chongqing UniversityChongqing 401331China

We investigate in detail the charged Higgs production associated with a W boson at electron-positron colliders within the framework of the Type-I two-Higgs-doublet model(THDM).We calculate the integrated cross section at the LO and analyze the dependence of the cross section on the THDM parameters and the colliding energy in a benchmark scenario of the input parameters of the Higgs *** numerical results show that the integrated cross section is sensitive to the charged Higgs mass,especially in the vicinity of mH±≃184 GeV at a 500 GeV e^+e^−collider,and decreases consistently with the increase of tanβin the low tanβ*** peak in the colliding energy distribution of the cross section arises from the resonance of the loop integrals,and it moves towards the low colliding energy with the increase of mH±.We also study the two-loop NLO QCD corrections to both the integrated cross section and the angular distribution of the charged Higgs boson and find that the QCD relative correction is also sensitive to the charged Higgs mass and strongly depends on the final-state phase *** tanβ=2,the QCD relative correction at a 500 GeV e^+e^−collider varies in the range of[-10%,11%]as mH±increases from 150 to 400 GeV.

关键词： two-loop QCD correction Type-I THDM charged Higgs boson

Electrical and Optical Characteristics of Electrodeless Lamp

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高压电器 2011年第9期47卷 12-18页

作者： wang Chang-quan ZHANG Gui-xin DONG Jin-yang shao ming-song wang Xin-xin wang Zan-ji Department of Electrical Engineering Tsinghua University Beijing 100084 China

In order to study the methods to enhance the efficacy of electrodeless lamp,volt-ampere characteristics,illuminance and emission spectrum have been investigated in home-built electrodeless lamp experimental system with an electrodeless lamp in shape like QL 85 *** results show that lamp current increases as lamp voltage increases in non-discharge,the current decreases first and then increases as the voltage increases in *** illuminance of electrodeless lamp increases linearly with discharge power increasing,and it decreases linearly with power *** emission spectrum is different for different bulb and lighting *** spectrum of Ar 811.5 nm,76.5 nm,750.4 nm and Hg 313.2 nm decrease with lighting *** the intensity of Hg 407.8 nm increases with lighting time.

关键词： electrodeless lamp volt-ampere characteristics illuminance emission spectrum efficacy

Gully Impact on Soil Moisture in the Gully Bank

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Pedosphere 2006年第3期16卷 339-344页

作者： ZHENG Ji-Yong wang Li-Mei shao ming-An wang Quan-Jiu LI Shi-Qing State Key Laboratory of Soil Erosion and Dry Land Farming on the Loess Plateau Institute of Soil and Water Conservation Chinese Academy of Sciences and Northwest A＆F University Yangling Shaanxi 712100 （China） Institute of Geographic Sciences and Natural Resources Research Chinese Academy of Sciences Beijing 100101 （China） College of Life Sciences Northwest A＆F University Yangling Shaanxi 712100 （China）

In order to preliminarily look at rules for soil moisture changes in the bank of the gully and to provide some recommendations for vegetative restoration in gully bank regions in the Loess Plateau, changes of soil moisture with depth and distance to the gully edge and their dynamic changes with time were observed to study the soil water characteristics in the bank of the gully. The results showed that soil water content increased with increasing distance from the gully edge, whereas for the same time period, the closer the distance to the gully wall, the greater the water loss; and that the influential distance of side evaporation decreased as depth increased.

关键词： gully bank region influential distance side evaporation soil moisture

Investigation of factors affecting vertical sag of stretched wire

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Nuclear Science and Techniques 2021年第2期32卷 90-100页

作者： Jian-Dong Yuan Jun-Xia Wu Bin Zhang Yuan He Jun-Hui Zhang Wen-Jun Chen shao-ming wang Guo-Zhen Sun Xu-Dong Zhang Li-Song Yan Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China

To study vertical sag requirements and factors affecting the stretched wire alignment method,the vertical sag equation is first derived ***,the influencing factors(such as the hanging weight or tension,span length,temperature change,elastic deformation,and the Earth’s rotation)of the vertical sag are summarized,and their validity is verified through actual ***,the essential factors affecting vertical sag,i.e.,the specific strength and length,are *** is believed that the vertical sag of a stretched wire is proportional to the square of the length and inversely proportional to the specific strength of the material.

关键词： Stretched wire Alignment Vertical sag Catenary Hyperbolic cosine Linear density Earth rotation

Comparison of the closed analytical solution on the parameters of the alignment and surveying of the elements of accelerator under random errors

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Radiation Detection Technology and Methods 2023年第2期7卷 234-247页

作者： Jian-Dong Yuan Jun-Xia Wu Feng-Feng wang Wen-Jun Chen Guo-Zhen Sun shao-ming wang Xu-Dong Zhang Xiao-Dong Zhang Zhi-Jun wang Bin Zhang Yuan He&Jun-Hui Zhang Institute of Modern Physics Chinese Academy of SciencesLanzhou730000China University of Chinese Academy of Sciences Beijing100049China

Purpose Compared with the iterative approximation solution,the analytically rigorous solution of the parameters of the accelerator alignment and surveying is the closed theoretical *** make the calculated error meet the negligible principle,in this paper,such examples of the zero,small angle and small translation,only large translation and no angle,only large angle without translation and large translation and large angle parameters under random errors are *** Furthermore,Singular Value Decomposition,Eigen Value Decomposition,Polar Decomposition,Orthogonal Procrustes Analysis,and Successive Equivalent Differences Transformation are *** In all the above examples,the mutual calculation deviation of Singular Value Decomposition,Eigen Value Decomposition,Polar Decomposition,and Orthogonal Procrustes analysis methods is less than 10 *** calculation accuracy is the highest,and Successive Equivalent Differences Transformation-3 has the largest calculation error,and Successive Equivalent Differences Transformation-N is in the *** results show that the coordinate residuals,parameters offsets and point position errors of the above solutions with random errors are all nearly *** It shows that the closed analytical solution is a rigorous ***,it also shows that the constructed method of the coordinate point pairs is correct.

关键词： Accelerator Alignment Surveying Closed analytical solution

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聚丙烯混杂碳质填料复合材料的导电性能

塑料工业 2022年第2期50卷 47-51页

作者：王建张谦邵明旺北京化工大学机电工程学院北京100029 北京理工大学化学与化工学院北京100081

石墨烯(GNP)、炭黑(CB)、碳纳米管(CNT)等碳质填料具备高的导电性能,通过在聚合物中混杂碳质填料制备功能性复合材料逐渐成为研究焦点。两种或多种碳质填料能够通过填料之间的协同作用在聚合物内部形成导电填料网络,进而提高复合材料的... 详细信息

石墨烯(GNP)、炭黑(CB)、碳纳米管(CNT)等碳质填料具备高的导电性能,通过在聚合物中混杂碳质填料制备功能性复合材料逐渐成为研究焦点。两种或多种碳质填料能够通过填料之间的协同作用在聚合物内部形成导电填料网络,进而提高复合材料的导电性能。采用熔融共混法制备了聚丙烯(PP)混杂碳质填料复合材料,研究了不同的填料配比以及填料网络对PP混杂碳质填料复合材料的导电率和和微观形态的影响。结果表明,单一填料复合材料中,含有5%CNT的PP复合材料的电导率最高,电导率达到0.793 S/cm;两种碳质填料混杂的复合材料,当CNT∶CB的配比为4∶1时,PP复合材料的电导率最高为0.339 S/cm;三种碳质填料混杂的复合材料,当GNP∶CNT∶CB的配比为2∶2∶1时,PP复合材料的电导率最高为0.317 5 S/cm。固定填料总含量为5%,通过增加其他填料,减少CNT的用量,减小成本的同时,电导率相差无几,具有不同形态的碳质填料在熔融共混的过程中互相缠结,CNT作为连接的桥梁,促进了填料网络形成。研究结果为聚合物复合材料导电性能的研究提供了方向。

关键词：聚丙烯复合材料导电性能石墨烯碳纳米管炭黑