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Late retroperitoneal recurrence of hepatocellular carcinoma 12 years after initial diagnosis

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World Journal of Gastroenterology 2010年第17期16卷 2187-2189页

作者： Tiffany Cho-Lam Wong Ka-Fai To Simon See-Ming hou Sidney Kam-Hung Yip Chi-Fai ng Department of Surgery Prince of Wales HospitalThe Chinese University of Hong Kong Department of Anatomical and Cellular Pathology The Chinese University of Hong Kong

Hepatocellular carcinoma (HCC) is an aggressive tumor with poor long-term ***,we present an unusual patient with a solitary recurrence of HCC in the right kidney 12 years after the initial *** illustrates the importan... 详细信息

关键词： Hepatocellular carcinoma Late recurrence Metastasis Retroperitoneal

Performance of a small AT-TPC prototype

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Nuclear Science and Techniques 2018年第7期29卷 138-144页

作者： Jin-Yan Xu Qi-Te Li Yan-Lin Ye Jian Gao Jia-Xing Han Shi-Wei Bai Ka-hou ng School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking University

A small prototype of an active-target time projection chamber detector based on the gas electron multiplier(GEM) readout technique was designed and *** calculations were performed to analyze the electric field distribution and optimize the *** particular,a guard ring installed above the GEM foil may play an important role in shaping the electric field in the gas vessel and improving the overall performance of the *** best results were obtained at a guard-ring voltage of-950 *** using a collimated a-particle source,an energy resolution of 3.6–4.0 ke V can be achieved for deposited energies of 18–21 keV,respectively.A position resolution of less 0.2 mm was observed along the electron drift direction,whereas the resolution in the readout plane was approximately 0.45 mm.A time resolution of less than 20 ns was *** using helium as the primary working gas as well as the target material,a t a elastic scattering events can be clearly imaged.

关键词：原型性能优化设计模拟计算工作气体宝石时间电子

缆系海底观测网恒流输电系统供电方案选择方法

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电力系统自动化 2015年第19期39卷 126-131页

作者：周学军樊诚李大伟周媛媛海军工程大学电子工程学院中国人民解放军92665部队海军工程大学兵器工程系

基于恒流输电的缆系海底观测网借助恒流分支技术可以实现网格型拓扑结构,从而存在多种主供电回路与分支供电回路的供电组合方案。针对这一问题,提出了恒流输电系统供电方案的选择方法。根据恒流分支技术的工作特性,提出了N级供电回路的... 详细信息

基于恒流输电的缆系海底观测网借助恒流分支技术可以实现网格型拓扑结构,从而存在多种主供电回路与分支供电回路的供电组合方案。针对这一问题,提出了恒流输电系统供电方案的选择方法。根据恒流分支技术的工作特性,提出了N级供电回路的概念,将供电方案抽象成与供电回路一一对应的多个连通图,定义了存活节点率作为供电方案的评价指标,并采用基于可变时间增量法的蒙特卡洛法结合深度优先算法进行估计。该方法适用于已知网络拓扑结构下的恒流输电系统供电方案的优化选择,算例分析表明:该模型及算法能较好地分析供电方案对系统可靠性的影响,且收敛性较好。

关键词：缆系海底观测网恒流输电恒流分支可靠性路径选择

Risk of cardiovascular thrombotic events after surgical castration versus gonadotropin-releasing hormone agonists in Chinese men with prostate cancer

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Asian Journal of Andrology 2015年第3期17卷 493-496页

作者： Jeremy YC Teoh Samson YS Chan Peter KF Chiu Darren MC Poon Ho-Yuen Cheung Simon SM hou Chi-Fai ng Department of Surgery Division of Urology Prince of Wales Hospital The Chinese University of Hong Kong Shatin Hong Kong China Department of Clinical Oncology Prince of Wales Hospital The Chinese University of Hong Kong Shatin Hong Kong China Department of Surgery Division of Urology North District Hospital Hong Kong China

We investigated the cardiovascular thrombotic risk after surgical castration （SC） versus genadotmpin-releasing hormone agonists （GnRHa） in Chinese men with prostate cancer. All Chinese prostate cancer patients who were treated with SC or GnRHa from year 2000 to 2009 were reviewed and compared. The primary outcome was any new-onset of cardiovascular thrombotic events after SC or GnRHa, which was defined as any event of acute myocardial infarction or ischemic stroke. The risk of new-onset cardiovascular thrombotic event was compared between the SC group and the GnRHa group using Kaplan-Meier method. Multivariate Cox regression analysis was performed to adjust for other potential confounding factors. A total of 684 Chinese patients was included in our study, including 387 patients in the SC group and 297 patients in the GnRHa group. The mean age in the SC group （75.3 ~ 7.5 years） was significantly higher than the GnRHa group （71.8 ~ 8.3 years）（P 〈 0.001）. There was increased risk of new cardiovascular thrombotic events in the SC group when compared to the GnRHa group upon Kaplan-Meier analysis （P= 0.014）. Upon multivariate Cox regression analysis, age （hazard ratio [HR] 1.072, 95% confidence interval [CI] 1.04-1.11, P 〈 0.001）, hyperlipidemia （HR 2.455, 95% Cl 1.53-3.93, P 〈 0.001）, and SC （HR 1.648, 95% CI 1.05-2.59, P = 0.031） were significant risk factors of cardiovascular thrombotic events. In conclusion, SC was associated with increased risk of cardiovascular thrombotic events when compared to GnRHa. This is an important aspect to consider while deciding on the method of androgen deprivation therapy, especially in elderly men with known history of hyperlipidemia.

关键词： androgen deprivation therapy Chinese population cardiovascular events myocardial infarction prostate cancer stroke

Chemical constituents and pharmacological effects of durian shells in ASEAN countries:A review

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Chinese Herbal Medicines 2021年第4期13卷 461-471页

作者： Yuan-fei Zhan Xiao-tao hou Li-li Fan Zheng-cai Du Soo Ee Ch'ng Siok Meng ng Khamphanh Thepkaysone Er-wei Hao Jia-gang Deng Faculty of Pharmacy Guangxi University of Chinese MedicineNanning 530200China Guangxi Key Laboratory of Efficacy Study on Chinese Materia Medica Guangxi University of Chinese MedicineNanning 530001China Collaborative Innovation Center for Research on Functional Ingredients of Agricultural Residues Guangxi University of Chinese MedicineNanning 530200China China-ASEAN Joint Laboratory for International Cooperation in Traditional Medicine Research Guangxi University of Chinese MedicineNanning 530200China Guangxi Key Laboratory of TCM Formulas Theory and Transformation for Damp Diseases Guangxi University of Chinese MedicineNanning530001China CAIQ Test Innovation(Malaysia)Service Center Selangor 40150Malaysia Bio-Axis Healthcare Limited Hong Kong 999077China Institute of Traditional Medicine VientianeLao PDR

Durio zibethnus is mainly distributed in Southeast *** Chinese medicine believes that durian shells have the effects of clearing heat and purging fire,nourishing yin and moisturizing ***,it is often used as a pharmaceutic food in the Chinese folk to assist treating *** present,the chemical constituents isolated from durian shell include phenolic acids,phenolic glycosides,flavonoids,coumarins,triterpenes,simple glycosides and other *** pharmacological studies show that durian shell has many pharmacological activities,such as antioxidant,antiinflammatory,regulation of glucose and lipid *** chemical composition and pharmacological effects of durian shells are summarized in order to provide references for the further research and application of durian shell.

关键词： agricultural residues chemical constituents durian shell Durio zibethnus Murr. pharmacological effects

Frictional shear stress of ZnO nanowires on natural and pyrolytic graphite substrates

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Friction 2022年第12期10卷 2059-2068页

作者： Lizhen hou Maofen hou Tursunay YIBIBULLA James Lee MEAD Sergej FATIKOW Shiliang WAng Han HUAng Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education School of Physics and Electronic ScienceHunan Normal UniversityChangsha 410081China School of Physics and Electronics Central South UniversityChangsha 410083China Division Microrobotics and Control Engineering Department of Computing ScienceUniversity of OldenburgOldenburg D-26129Germany School of Mechanical and Mining Engineering The University of QueenslandBrisbaneQLD 4072Australia

The friction behaviour of ZnO nanowires on natural graphite(ng)and highly oriented pyrolytic graphite(HOPG)substrates was tested in ambient conditions by use of optical microscopy based *** on the step-free and waviness-free ng substrate exhibit a diameter-independent nominal frictional shear stress of 0.48 MPa,and this provides a benchmark for studying how the surface topography of graphite influences nanowire *** on the HOPG substrate present a significant diameter-dependent frictional shear stress,increasing from 0.25 to 2.78 MPa with the decrease of nanowire diameter from 485 to 142 *** waviness of HOPG has a limited effect on the nanowire friction,as a nanowire can fully conform to the *** surface steps on the HOPG can significantly enhance the nanowire friction and lead to a much higher frictional shear stress than that on ng due to mechanical blocking and the presence of a Schwoebel barrier at step *** surface steps,however,can also generate small wedge-shaped gaps between a nanowire and substrate,and thus reduce the nanowire *** the decrease in nanowire diameter,the capacity for the nanowire to better conform to the substrate reduces the length of the wedge-shaped gaps,leading to the observed increase in nanowire *** results have improved our understanding of the unique friction behaviour of *** an improved understanding is expected to benefit the design and operation of nanowire-friction-based devices,including bio-inspired fibrillar adhesives,soft grippers,rotary nanomotors,and triboelectric nanogenerators.

关键词： frictional shear stress nanowires graphite surface step waviness

Characteristics and sources of polycyclic aromatic hydrocarbons in impervious surface run-off in an urban area in Shanghai, China

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2013年第10期14卷 751-759页

作者： Juan hou Lu BIAN Tian LI State Key Laboratory of Pollution Control and Resource Reuse Tongji University

Rainwater and run-off from three kinds of impervious surface in the Shanghai urban area,China were *** aromatic hydrocarbons(PAHs) were measured in the samples,and their sources were *** mean sum of the 16 PAH concentrations measured in rainwater and run-offs from ceramic tiles,asphalt roofs,and asphalt roads were 873,1404,1743,and 4023 ng/L,*** PAH concentrations found in this study were moderate compared to PAH concentrations found in run-offs in other *** main PAH components in the rainwater,roof run-off,and asphalt road run-off samples were 3-ring PAHs,3–4-ring PAHs,and 4–6-ring PAHs,*** apportionment results indicated that combustion(47.4%–55.5%) and vehicular emissions(30.5%–33.0%) were the major contributors to PAHs in roof *** emissions were the most significant contributors to asphalt road run-off(47.2%),followed by combustion(23.5%),and petroleum(16.3%).Vehicular emissions and coal and natural gas combustion are therefore the most significant sources of PAHs in run-off from impervious surfaces in the Shanghai urban area.

关键词： Polycyclic aromatic hydrocarbons(PAHs) Impervious surface Run-off pollution Source apportionment

LiFePO_(4)and LiMn_(2)O_(4)nanocomposite coating of LiNi_(0.815)Co_(0.15)Al_(0.035)O_(2)cathode material for high-performance lithium-ion battery

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Rare Metals 2022年第8期41卷 2560-2566页

作者： Zi-Wei Lan Jian-Ru Zhang Yuan-Yuan Li Ru-Heng Xi Yong-Xiang Yuan Lei Zhao Xiao-Yi hou Jia-Tai Wang Dickon H.L.ng Cai-Hong Zhang College of Physics and Electronic Information Engineering Qinghai Normal UniversityXining810008China Department of Physical Science and Technology Lingnan Normal UniversityZhanjiang524048China Department of Physics The Chinese University of Hong KongHong Kong999077China

To solve the multiple problems of low ionic conductivity,fast capacity decay,and poor cycling performance of Nirich layered cathode materials,LiNi_(0.815)Co_(0.15)Al_(0.035)O_(2)@LiFePO_(4)@LiMn_(2)O_(4)(NCA@LFP@LMO,abbreviated as AFM)series cathode materials with different coating ratios were synthesized by a two-step ball milling method and precise control of the mass coating ratio of LFP and *** cathode material of NCA,LFP and LMO with a mass ratio of 8:1:1(A_(8)F_(1)M_(1))presents a more desirable nanocomposite coating and still can deliver a discharge capacity of 151.67 mAh·g^(-1)(with a 94.52%capacity retention)after 200 cycles at 1.0 ***.

关键词： coating cycling performance

Time trend and characteristics of prostate cancer diagnosed in Hong Kong(China)in the past two decades

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Asian Journal of Andrology 2019年第1期21卷 104-106页

作者： Ho-Fai Wong Chi-Hang Yee Jeremy YC Teoh Samson YS Chan Peter KF Chiu Ho-Yuen Cheung Simon SM hou Chi Fai ng S H.Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong KongChina

Dear Editor, Prostate cancer is an important disease worldwide)In 2015 it was the third most common cancer diagnosed in male in Hong Kong (China) and the incidence of prostate cancer has been rising in the past 15 years. Meanwhile,with increasing public awareness,health education, presentation,and detection of prostate cancer maybe ***, we would like to review how the epidemiology of prostate cancer in Hong Kong (China)had changed in the past two decades.

关键词： prostate cancer Time trend