检索结果-南通市图书馆

Comparison of diagnostic efficacy between transrectal and transperineal prostate biopsy:a propensity score-matched study

引用

Asian Journal of Andrology 2019年第6期21卷 612-617页

作者： Chen-Yi jiang Peng-Fei Shen Cheng Wang hao-jun Gui Yuan Ruan hao Zeng Shu-Jie Xia Qiang Wei Fu-jun Zhao Department of Urology Shanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China Department of Urology West China HospitalSichuan UniversityWest China School of MedicineChengdu 610041China Department of Urology Shanghai General Hospital Affiliated to Nanjing Medical UniversityShanghai 200080China.

This study compared the diagnostic efficacy of transrectal ultrasound(TRUS)-guided prostate biopsy(TRBx)and transperineal prostate biopsy(TPBx)in patients with suspected prostate cancer(PCa).We enrolled 2962 men who underwent transrectal(n=1216)or transperineal(n=1746)systematic 12-core prostate *** data including age,prostate-specific antigen(PSA)level,and prostate volume(PV)were *** minimize confounding,we performed propensity score-matching analysis?We measured and compared PCa detection rates between TRBx and TPBx,which were stratified by clinical characteristics and Gleason *** effects of clinical characteristics on PCa detection rate were assessed by logistic *** all patients,TPBx detected a higher proportion of clinically significant PCa(P<0.001).Logistic regression analyses illustrated that PV had a smaller impact on PCa detection rate of TPBx compared with *** score-matching analysis showed that the detection rates in TRBx were higher than those in TPBx for patients aged≥80 years(80.4%vs 56.5%,P=0.004)and with PSA level 20.1-100.0 ng ml^-1(80.8%vs 69.1%,P=0.040).In conclusion,TPBx was associated with a higher detection rate of clinically significant PCa than TRBx was;however,because of the high detection rate at certain ages and PSA levels,biopsy approaches should be optimized according to patents'clinical characteristics.

关键词： biopsy demography Gleason score propensity score prostatic neoplasms

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defined Contribution Pension Planning with the Return of Premiums Clauses and HARA Preference in Stochastic Environments

引用

Acta Mathematicae Applicatae Sinica 2023年第2期39卷 396-423页

作者： hao CHANG Xing-jiang CHEN School of Mathematical Sciences Tiangong UniversityTianjin 300387China Department of Mathematical Sciences School of EngineeringComputer and Mathematical SciencesAuckland University of TechnologyAucklandNew Zealand

This paper studies a defined contribution(DC)pension fund investment problem with return of premiums clauses in a stochastic interest rate and stochastic volatility *** practice,most of pension plans were subject to the return of premiums clauses to protect the rights of pension members who died before *** the mathematical modeling,we assume that a part of pension members could withdraw their premiums if they died before retirement and surviving members could equally share the difference between accumulated contributions and returned *** suppose that the financial market consists of a risk-free asset,a stock,and a zero-coupon *** interest rate is driven by a stochastic affine interest rate model and the stock price follows the Heston’s stochastic volatility model with stochastic interest *** fund managers have different risk preferences,and the hyperbolic absolute risk aversion(HARA)utility function is a general one including a power utility,an exponential utility,and a logarithm utility as special *** are concerned with an optimal portfolio to maximize the expected utility of terminal wealth by choosing the HARA utility function in the *** using the principle of dynamic programming and Legendre transform-dual theory,we obtain explicit solutions of optimal *** special cases are also derived in ***,a numerical simulation is provided to illustrate our results.

关键词： defined contribution pension plan return of premiums clauses stochastic interest rate HARA preference Legendre transform-dual theory stochastic optimal control

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Efficient defect-controlled photocatalytic hydrogen generation based on near-infrared Cu-In-Zn-S quantum dots

引用

Nano Research 2018年第3期11卷 1379-1388页

作者： Xiao-Yuan Liu Guozhen Zhang hao Chen haowen Li jun jiang Yi-Tao Long Zhijun Ning School of Physical Science and Technology ShanghaiTech University Shanghai 201210 China Key Laboratory for Advanced Materials & School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai 200237 China School of Chemistry and Materials Science Hefei National Laboratory for Physical Sciences at the Microscale and CAS Key Laboratory of Mechanical Behavior and Design of Materials (LMBD) University of Science and Technology of China (USTC) Hefei 230026 China

The development of photocatalysts that can effectively harvest visible light is essential for advances in high-efficiency solar-driven hydrogen generation. Herein, we synthesized water soluble CuInS2 （CIS） and Cu-In-Zn-S （CIZS） quantum dots （QDs） by using one-pot aqueous method. The CIZS QDs are well passivated by glutathione ligands and are highly stable in aqueous conditions. We subsequently applied these QDs as a light harvesting material for photocatalytic hydrogen generation. Unlike most small band gap materials that show extremely low efficienc36 these new QDs display remarkable energy conversion efficiency in the visible and near-infrared regions. The external quantum efficiency at 650 nm is - 1.5%, which, to the best of our knowledge, is the highest value achieved until now in the near-infrared region.

关键词： quantum dots photocatalysis hydrogen generation surface defect

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Revisiting the sex pheromone of the fall armyworm Spodoptera frugiperda,a new invasive pest in South China

引用

Insect Science 2022年第3期29卷 865-878页

作者： Nan-Ji jiang Bao-Tong Mo hao Guo jun Yang Rui Tang Chen-Zhu Wang State Key Laboratory of Integrated Management of Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijing100101China CAS Center for Excellence in Biotic Interactions University of Chinese Academy of SciencesBeijing100049China

The fall armyworm Spodoptera frugiperda is a worldwide serious agricultural pest,and recently invaded South *** pheromone can be employed to monitor its population dynamics accurately in the ***,the pheromone components previously reported by testing different geographic populations and strains are not *** the basis of confirming that the *** population from Yunnan Province belonged to the com strain,we analyzed the potential sex pheromone components in the pheromone gland extracts of females using gas chromatography coupled with electroan-tennographic detection(GC-EAD),gas chromatography coupled with mass spectrometry(GC-MS)and electroantennography(EAG).The results show that(Z)-9-tetradecenal acetate(Z9-14:Ac),(Z)-11-hexadecenyl acetate(Z11-16:Ac),(Z)-7-dodecenyl acetate(Z7-12:Ac)or(E)-7-dodecenyl acetate(E7-12:Ac)with a ratio of 100:15.8:3.9 induced EAD responses to varying degrees:Z9-14:Ac elicited a strong EAD response,Z7-12:Ac or E7-12:Ac elicited a small but clear EAD response,while Z11-16:Ac elicited a weak EAD *** single sensillum recording(SSR)showed that Z9-14:Ac and Z7-12:Ac induced dose-dependent activities in two types(A and B)of sensilla in male antennae,respectively,while the sensilla in response to E7-12:Ac and Z11-16:Ac was not ***,wind tunnel tests reveal that Z9-14:Ac and Z7-12:Ac are two principal sex pheromone components of the tested population.

关键词： GC-EAD GC-MS sex pheromone single sensillum recording wind tunnel

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Mild and Rapid Synthesis of （Z）-β-Sulfonyl Enoates from Sodium Sulfinates and Propargyl Esters

引用

Chinese Journal of Chemistry 2016年第12期34卷 1245-1250页

作者： jun jiang Huaxu Zou Niannian Yi Ruijia Wang hao Zhang Lixin Lan Jiannan Xiang State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha Hunan 410082 China Hunan Chemical Vocational Technology College Zhuzhou Hunan 412000 China

Water-promoted sulfonylation of propargyl esters leading to highly regioselective and stereoselective formation of （Z）-β-sulfonyl enoates in excellent yields, by a simple, mild, rapid and environmentally benign rea... 详细信息

关键词： sodium sulfinates propargyl esters green reaction (Z)-β-sulfonyl enoates

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Industrial Application of Desulfurization Using Low Basicity Refining Slag in Tire Cord Steel

引用

Journal of Iron and Steel Research International 2013年第1期20卷 26-33页

作者： CHEN Shu-hao WANG Xin-hua HE Xiao-fei WANG Wan-jun jiang Min School of Metallurgical Science and Engineering Central South University School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

Desulfurization performance with low binary basicity refining slag in 72 grade tire cord steel was calculated using FactSage and it is found that sulfur content in steel decreases with the increase of basicity of slag, MgO content in slag and slag/steel ratio while sulfur partition ratio between slag and steel increases gradually with the increase of basicity of slag as well as MgO content. Experiments were carried out and the results are of great agreements with theoretical calculation. Then industrial application tests were performed in a domestic plant and good results were achieved. Sulfur content in steel decreases gradually during refining process, as a result, sulfur content in the billets is controlled in the range of 0.007 1%-0.008 1%. Sulfur content in steel refined with slag basicity of 1.21 is lower than that of 1.02, while the plasticity of oxide compound inclusions is a little better controlled in low basicity heats. Using refining slag with basicity of 1.0-1.2 and MgO content of 5%-10% and reducing the slag takeover of LD are favorable for improving the desulfurization performance and the plasticity of inclusions during the industrial production.

关键词： FactSage desulfurization behavior low basicity refining slag sulfur partition ratio sulfur content

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Hydrogen storage properties of Li-Mg-N-B-H/ZrCoH_(3) composite with different ball-milling atmospheres

引用

Rare Metals 2023年第3期42卷 1036-1042页

作者： Zhi-Nian Li hao-Chen Qiu Xiu-Mei Guo Jian-Hua Ye Shu-Mao Wang Li-jun jiang jun Du Fermin Cuevas Department of Energy Materials and Technology General Research Institute for Nonferrous MetalsBeijing 100088China UMR7182 CMTR/ICMPE/CNRS-UPEC94320 Thiais CedexFrance

Li-Mg-N-B-H/ZrCoH_(3) composites were successfully synthesized by ball milling of the reactants under argon and hydrogen atmosphere,*** composite synthesized by reactive ball milling(RBM)under hydrogen has the best hydrogen storage *** can desorb 3.71 wt%hydrogen in 60 min at 150℃under pressure of 0.1 MPa,and the dehydrogenation capacity reaches 4.59 wt%in 8 *** the re-hydrogenation,5.27 wt%hydrogen was absorbed in only 10 min at 150℃under H_(2) pressure of 8 *** phases of the as-milled and subsequently dehydrogenated and re-hydrogenated samples were determined by X-ray diffraction(XRD).The microstructures and elemental distributions were characterized by scanning electron microscope(SEM)and energy-dispersive spectrometer(EDS)*** is shown that Mg is in situ hydrogenated and introduced homogeneous distribution of ZrCoH_(3) particles during the RBM process under hydrogen *** activation energies for the composites were calculated by Kissinger method through differential scanning calorimetric(DSC)measurements for the dehydrogenation process with different heating *** is determined that the activation energy for the Li-Mg-N-B-H/ZrCoH_(3) composite synthesized by RBM under hydrogen is 79.9 kJ·mol^(-1),which is14 kJ·mol^(-1) lower than that for the sample without ZrCoH_(3) *** N-H bond energies were analyzed by infrared(IR)absorption spectrum,and the reasons for weakening of the N-H bond were further discussed.

关键词： Hydrogen storage Li-Mg-N-B-H Reactive ball milling Activation energy

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Preparation of vanadium-based electrode materials and their research progress in solid-state flexible supercapacitors

引用

Rare Metals 2024年第2期43卷 431-454页

作者： Rui-Jie Zhu jiang Liu Chao Hua hao-Yu Pan Yi-jun Cao Meng Li Zhongyuan Critical Metals Laboratory Zhengzhou UniversityZhengzhou450001China School of Chemical Engineering Zhengzhou UniversityZhengzhou450001China

Solid-state flexible supercapacitors(SCs)have many advantages of high specific capacitance,excellent flexibility,fast charging and discharging,high power density,environmental friendliness,high safety,light weight,ductility,and long cycle *** are the ideal choice for the development of flexible energy storage technology in the future,and provide a good prospect for energy storage *** present,solid-state flexible SCs are widely used for portable electronic equipment and wearable energy storage equipment,the research of them has become the focus of a growing number of *** material is the key part of SCs and always determines the electrochemical performance of *** has been a hotspot and focus of ***-based compounds are considered to be a promising electrode material for SCs because of variable valence,open structure,high theoretical capacity,and low ***,this study first gives an overview of solid-state flexible SCs,then reviews the current research status of vanadium-based electrode materials in solid-state flexible SCs,and proposes some strategies to solve some problems of vanadium-based electrode materials.

关键词： Vanadium-based materials Flexible energy storage Specific capacitance Supercapacitors(SCs)

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multi-channel blind deconvolution algorithm for multiple-input multiple-output DS/CDMA system

引用

Journal of Systems Engineering and Electronics 2007年第3期18卷 454-461页

作者： Cheng hao Guo Wei jiang Yi National Key Lab of Communication Univ. of Electronic Science and Technology Chengdu 610054 P. R. China

Direct sequence spread spectrum transmission can be realized at low SNR, and has low probabilityof detection. It is aly problem how to obtain the original users＇ signal in a non-cooperative context. In practicality, the DS/CDMA sources received are linear convolute mixing. A more complex multichannel blind deconvolution MBD algorithm is required to achieve better source separation. An improved MBD algorithm for separating linear convolved mixtures of signals in CDMA system is proposed. This algorithm is based on minimizing the average squared cross-output-channel-correlation. The mixture coefficients are totally unknown, while some knowledge about temporal model exists. Results show that the proposed algorithm can bring about the exactness and low computational complexity.

关键词： DS/CDMA signal non-cooperative MBD stochastic gradient algorithms for MBD.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Recent progress in gold nanoparticle-based biosensing and cellular imaging

引用

Science China Chemistry 2016年第7期59卷 783-793页

作者： Haiyang Peng hao Tang Jianhui jiang State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University

Gold nanoparticles(Au NPs) have been extensively used in optical biosensing and bioimaging due to the unique optical properties. Biological applications including biosensing and cellular imaging based on optical properties of Au NPs will be reviewed in the paper. The content will focus on detection principles, advantages and challenges of these approaches as well as recent advances in this field.

关键词： gold nanoparticle optical functionalization biosensing cellular imaging

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：