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Biomedical and Environmental Sciences 2012年第4期25卷 392-398页

作者： MA Ka Ying LIANG Yin Tong CHEN Jing Nan JIANG Yue kwan kin ming PENG Cheng JIAO Rui ZUO Yuan Yuan HUANG Yu CHEN Zhen Yu Food & Nutritional Sciences Programme School of Life Sciences The Chinese University of Hong Kong Shatin NT Hong Kong China Department of Biology and Kwong Living Trust Food Safety & Analysis Laboratory Hong Kong Baptist University Kowloon Tong Hong Kong China School of Biomedical Sciences The Chinese University of Hong Kong Shatin NT Hong Kong China

Objective To investigate the effect of dietary calcium on plasma lipoprotein profile in castrated and ovariectomized hamsters. Methods Male, castrated, female and ovariectomized hamsters （n=36 each group） were randomly divided into three sub-groups （n=12） and fed one of the three diets containing O, 2, and B g calcium per kg diet for a period of six weeks. Changes in plasma lipoprotein profile were monitored at the end of week O, 3 and 6. Results Plasma total cholesterol （TC）, non-high density lipoprotein cholesterol （non-HDL-C）, triacylglycerols （TG） and TC/HDL-C were decreased only in intact female and ovariectomized hamsters. In contrast, three levels of dietary calcium had no effect on lipoprotein profiles in both intact male and castrated hamsters. Conclusion Beneficial modification of lipoprotein profile by dietary calcium was gender-dependent at least in hamsters.

关键词： Calcium Cholesterol Triacylglycerols Fecal sterols

Performance in the Fundamentals of Laparoscopic Surgery: Does it reflect global rating scales in the Objective Structured Assessment of Technical Skills in porcine laparoscopic surgery?

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Asian Journal of Urology 2024年第3期11卷 443-449页

作者： Ho Yee Tiong Wei Zheng So Jeremy Yuen-Chun Teoh Shuji Isotani Gang Zhu Teng Aik Ong Eddie Shu-Yin Chan Peggy Sau-kwan Chu Kittinut Kijvikai ming Liu Bannakji Lojanapiwat Michael Wong Anthony Chi-Fai Ng Yong Loo Lin School of Medicine Department of SurgeryNational University of SingaporeSingapore S.H.Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong KongChina Department of Urology Juntendo University Graduate School of MedicineTokyoJapan Department of Urology National University HospitalSingapore Department of Urology Beijing United Family HospitalBeijingChina Department of Surgery University of Malaya Specialist CentreKuala LumpurMalaysia Division of Urology Department of SurgeryTuen Mun HospitalHong Kong Department of Urology Ramathibodi HospitalMahidol UniversitySalayaThailand Department of Urology Beijing HospitalBeijingChina Department of Urology Chiangmai Ram HospitalChiang MaiThailand International Urology Fertility&Gynaecology CentreSingapore

Objective:To correlate the utility of the Fundamentals of Laparoscopic Surgery(FLS)manual skills program with the Objective Structured Assessment of Technical Skills(OSATS)global rating scale in evaluating operative ***:The Asian Urological Surgery Training and Educational Group(AUSTEG)Laparoscopic Upper Tract Surgery Course implemented and validated the FLS program for its usage in laparoscopic surgical ***’basic laparoscopic skills were assessed using three different training models(peg transfer,precision cutting,and intra-corporeal suturing).They also performed live porcine laparoscopic surgery at the same *** surgery skills were assessed by blinded faculty using the OSATS rating ***:From March 2016 to March 2019,a total of 81 certified urologists participated in the course,with a median of 5 years of post-residency *** differences in task time did not reach statistical significance,those with more surgical experience were visibly faster at completing the peg transfer and intra-corporeal suturing FLS ***,they took longer to complete the precision cutting task than participants with less *** OSATS scores correlated weakly with all three FLS tasks(peg transfer time:r=0.331,r^(2)=0.110;precision cutting time:r=0.240,r^(2)=0.058;suturing with intracorporeal knot time:r=0.451,r^(2)=0.203).Conclusion:FLS task parameters did not correlate strongly with OSATS globing rating scale *** FLS task models demonstrated strong validity,it is important to assimilate the inconsistencies when benchmarking technical proficiency against real-life operative competence,as evaluated by FLS and OSATS,respectively.

关键词： TheFundamentalsof Laparoscopic Surgery The Objective Structured Assessment of Technical Skills Laparoscopic training Surgical education Surgical training Urological laparoscopic surgery

Atomic-scale strain analysis for advanced Si/SiGe heterostructure by using transmission electron microscopy

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Electron 2024年第2期2卷 29-52页

作者： Lan Li Ran Bi Zuoyuan Dong Changqing Ye Jing Xie Chaolun Wang Xiaomei Li kin-Leong Pey ming Li Xing Wu School of Integrated Circuits East China Normal UniversityShanghaiChina School of Integrated Circuits Peking UniversityBeijingChina Engineering Product Development Pillar Singapore University of Technology and DesignSingaporeSingapore

Three-dimensional stacked transistors based on Si/SiGe heterojunction are a potential candidate for future low-power and high-performance computing in integrated *** and accurately measuring strain in Si/SiGe heterojunctions is critical to increasing carrier mobility and improving device *** electron microscopy(TEM)with high spatial resolution and analytical capabilities provides technical support for atomic-scale strain measurement and promotes significant progress in strain mapping *** paper reviews atomic-scale strain analysis for advanced Si/SiGe heterostructure based on TEM ***-beam electron diffraction,nano-beam electron diffraction,dark-field electron holography,and high-resolution TEM with geometrical phase analysis,are comprehensively discussed in terms of spatial resolution,strain precision,field of view,reference position,and data ***,the advantages and critical issues of these strain analysis methods based on the TEM technique are sum-marized,and the future direction of TEM techniques in the related areas is prospected.

关键词： GPA heterostructure Si/SiGe strain transmission electron microscopy

A case of secretory breast carcinoma with ETV6-NTRK3 fusion gene during childhood

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镜湖医学 2024年第1期24卷 62-63,F0004页

作者： TAI Wai Meng CHAN kin Iong WONG Peng Hong XU De Li WEN Jian ming Department of Pathology Kiang Wu HospitalMacao SARChina Department of Surgery Kiang Wu HospitalMacao SARChina

Secretory carcinoma is a rare breast *** report a case of secretory carcinoma occurred in childhood.A 7-year-old girl had a history of a mass in the breast for 4 *** tumor grew slowly and well circumscribed,mimicking benign lesions on *** breast lumpectomy,a diagnosis of secretory carcinoma was made based on its histological morphology,immunohistochemical reaction,and molecular ***,we report the process of diagnosis,and treatment of this rare case.

关键词： diagnosis carcinoma lesions

Autocompletion of repetitive stroking with image guidance

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Computational Visual Media 2023年第3期9卷 581-596页

作者： Yilan Chen kin Chung kwan Hongbo Fu School of Creative Media City University of Hong KongTat Chee AvenueKowloonHong Kong SARChina University of Konstanz University Street 1078464 KonstanzGermany

Image-guided drawing can compensate for a lack of skill but often requires a significant number of repetitive strokes to create *** automatic stroke synthesis methods are usually limited to predefined styles or require indirect manipulation that may break the spontaneous flow of *** present an assisted drawing system to autocomplete repetitive short strokes during a user's normal drawing *** draw over a reference image as usual;at the same time,our system silently analyzes the input strokes and the reference to infer strokes that follow the user's input style when certain repetition is *** can accept,modify,or ignore the system's predictions and continue drawing,thus maintaining fluid control over *** key idea is to jointly analyze image regions and user input history to detect and predict *** proposed system can effectively reduce the user's workload when drawing repetitive short strokes,helping users to create results with rich patterns.

关键词： interaction autocompletion digital drawing prediction texture synthesis

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《谷应》

音乐探索 2024年第2期 30-46页

作者：关振明美国纽约州立大学水牛城分校星海音乐学院美国吉他基金会(GFA) 全国吉他教师协会全国吉他教师协会广东省分会 “周文中音乐研究中心”

作者认为,周文中先生追求的是中国的水中月的对称,追求的是中国书法里讲究的线条,其“简洁的呈现手法”将每一个单音所牵涉的每一个细节或手段体现在他的创作里。这也是为什么周文中先生常常讲中国或者东方审美里的“单音”(single tone... 详细信息

作者认为,周文中先生追求的是中国的水中月的对称,追求的是中国书法里讲究的线条,其“简洁的呈现手法”将每一个单音所牵涉的每一个细节或手段体现在他的创作里。这也是为什么周文中先生常常讲中国或者东方审美里的“单音”(single tone)的概念。因此,要了解《谷应》,就首先要了解周文中先生的创作概念/历程、要了解他创建的可变(变化)调式(Variable Modes)系统,这种基于传统中国文化(尤其是《易经》、道家思想、古琴、书法等等)的参悟和推演而创造的调式系统形成了他晚年的主要音乐风格。

关键词：周文中《谷应》可变(变化)调式节奏调式中国审美“单音”概念

Deep residual learning for denoising Monte Carlo renderings

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Computational Visual Media 2019年第3期5卷 239-255页

作者： kin-ming Wong Tien-Tsin Wong Artixels Hong Kong S.A.R.China Department of Computer Science and Engineering the Chinese University of Hong KongHong Kong S.A.R.China

Learning-based techniques have recently been shown to be effective for denoising Monte Carlo rendering methods. However, there remains a quality gap to state-of-the-art handcrafted denoisers. In this paper, we propose a deep residual learning based method that outperforms both state-of-the-art handcrafted denoisers and learning-based *** the indirect nature of existing learning-based methods(which e.g., estimate the parameters and kernel weights of an explicit feature based filter), we directly map the noisy input pixels to the smoothed output. Using this direct mapping formulation, we demonstrate that even a simple-and-standard ResNet and three common auxiliary features(depth, normal,and albedo) are sufficient to achieve high-quality denoising. This minimal requirement on auxiliary data simplifies both training and integration of our method into most production rendering pipelines. We have evaluated our method on unseen images created by a different renderer. Consistently superior quality denoising is obtained in all cases.

关键词： Monte Carlo rendering denoising deep learning deep residual learning filter-free denoising

Multi scale risk measurement in electricity market:a wavelet based value at risk approach

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Journal of Southeast University(English Edition) 2008年第S1期24卷 54-59页

作者： Guu Sy-ming Lai kin Keung College of Management Yuan Ze University School of Business Administration Hunan University

Value at risk (VaR) is adopted to measure the risk level in the electricity market. To estimate VaR at higher accuracy and reliability, the wavelet variance decomposed approach for value at risk estimates (WVDVaR) is proposed. Empirical studies conduct in five Australian electricity markets, which evaluate the performances of both the proposed approach and the traditional ARMA-GARCH approach using the Kupiec backtesting procedure. Experimental results suggest that the proposed approach measures electricity market risks at higher accuracy and reliability than the bench mark ARMA-GARCH approach, as indicated by the higher p values during the Kupiec backtesting procedure. In addition, the new approach also provides more insight into the risk evolution process over time and helps in adjusting VaR estimates to the time horizons that best suit investor interests. The distribution of risk according to investor preferences is shown by decomposing VaR across different time horizons. This also provides important information for the appropriate aggregation of risk measures based on investor investment preferences.

关键词： wavelet analysis value at risk risk management Australian electricity market

Dynamics of scalar fields in an expanding/contracting cosmos at finite temperature

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Chinese Physics C 2020年第5期44卷 22-42页

作者： Hui Xu Lei ming Yeuk-kwan ECheung School of Physics Nanjing UniversityNanjing210093Chin Institute of Nuclear and Particle Physics Demokritos National Research CentreAthensGreece

This study extends the investigation of quantum dissipative effects of a cosmological scalar field by taking into account cosmic expansion and ***,Drewes,Kang,and Kim calculated the effective action and quantum dissipative effects of a cosmological scalar field in a recent work,where analytical expressions for the effective potential and damping coefficient were presented using a simple scalar model with quartic interactions,and the work was conducted using Minkowski-space propagators in loop *** this work,we incorporate the Hubble expansion and contraction of the cosmic background and focus on the thermal dynamics of a scalar field in a regime where the effective potential changes *** that the Hubble parameter,H,attains a small but non-zero value,we carry out calculations to the first order in *** we set H=0,all results match those in flat ***,we must integrate over the resonances,which in turn leads to an amplification of the effects of a non-zero *** is an intriguing phenomenon,which cannot be uncovered in flat *** implications on particle creations in the early universe will be studied in a forthcoming study.

关键词： quantum dissipative effects thermal field theory scalar field dynamics cosmological expansion

Diffuse Reflectance Fourier Transform Infrared Spectrometry of BN Films Deposited on Steels by Remote Microwave Plasma CVD from Borazine

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Chinese Physics Letters 1996年第4期13卷 309-312页

作者： LEI ming-kai MA Teng-cai V.A.Emel'kin National Laboratory of Material Modification Dalian University of TechnologyDalian 116024 Institute of Thermophysics Siberian Branch of Russian Academy of SciencesNovosibirsk 630090Russia

The diffuse reflectance Fourier trmisfonn infrared spectra of the boron nitride(BN)films deposited on steels by remote microwave plasma chemical vapour deposition(CVD)from borazine with nitrogen,hydrogen and argon were investigated in the wavenumber range of 400-4000 cm^(-1).It was found that the cubic BN for million depends on production of the intermediate species of cyclo triborazane((BH2NH2)3)and its *** structuml bonds of cydotriborazane are similar to that of cubic *** conditions for deposited BN films were found to be the bora,zine-nitrogen mixture at the substrate *** of 550℃.The BN films were n mixture of crystalline cubic BN accounting for the major content and hexagonal BN with relatively low hydrogen content.

关键词： cubic Infrared tempera