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由钛合金/多壁碳纳米管/纳米羟基磷灰石混合微波烧结而成的复合材料生物安全性的初步评价

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实用口腔医学杂志 2013年第2期29卷 165-169页

作者：王涛 c.t.wong c.Y.tang L.N.Zhang 谭勇安斯耀高勃第四军医大学口腔医院修复科西安710032 香港理工大学工业及系统工程学系

目的:初步评价微波烧结工艺制作由钛合金/多壁碳纳米管/纳米羟基磷灰石体积比10∶1.7∶1烧结而成的复合材料的生物安全性。方法:参照国标GB/t16886.5-2003、GB/t16886.10-2005以及医疗行业标准YY/t 0127.1-93、YY/t0279-1995所规定的方... 详细信息

目的:初步评价微波烧结工艺制作由钛合金/多壁碳纳米管/纳米羟基磷灰石体积比10∶1.7∶1烧结而成的复合材料的生物安全性。方法:参照国标GB/t16886.5-2003、GB/t16886.10-2005以及医疗行业标准YY/t 0127.1-93、YY/t0279-1995所规定的方法,对复合材料进行体内与体外试验,分别为细胞毒性试验、致敏试验、溶血试验以及黏膜刺激试验。结果:体外细胞毒性试验结果显示复合材料无明显细胞毒性作用,致敏试验显示无皮肤致敏性,溶血率3.2%,口腔黏膜刺激试验结果显示对仓鼠颊黏膜无刺激作用。结论:采用微波快速烧结工艺处理的钛合金/多壁碳纳米管/纳米羟基磷灰石(体积比10∶1.7∶1)复合涂层材料显示了良好的生物安全性。

关键词：钛合金多壁碳纳米管纳米羟基磷灰石生物安全性

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香港水果市场的经济分析

华南农业大学学报 1988年第2期 34-46页

作者：陈迭云黄成达徐是雄华南农业大学农经系香港大学嘉道理农业研究所香港大学所长本校客座教授

本文描述了香港水果市场的组织;对需求与供应、进口水果的来源、种类和价格进行经济分析。研究表明我国内地出口水果在香港市场的形势是:数量不多、质量较差、价格较贱,受到外国水果的严重挑战。文章分析了造成我国内地水果在香港市场... 详细信息

本文描述了香港水果市场的组织;对需求与供应、进口水果的来源、种类和价格进行经济分析。研究表明我国内地出口水果在香港市场的形势是:数量不多、质量较差、价格较贱,受到外国水果的严重挑战。文章分析了造成我国内地水果在香港市场不利形势的主要原因。最后提出几点建议以期促进我国内地水果出口的发展。

关键词：香港水果市场

crosstalk between degradation and bioenergetics: how autophagy and endolysosomal processes regulate energy production

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Neural Regeneration Research 2025年第3期20卷 671-681页

作者： Angelid Pabon Jagannatham Naidu Bhupana ching-On wong Department of Biological Sciences Rutgers UniversityNewarkNJUSA

cells undergo metabolic reprogramming to adapt to changes in nutrient availability, cellular activity, and transitions in cell states. the balance between glycolysis and mitochondrial respiration is crucial for energy production, and metabolic reprogramming stipulates a shift in such balance to optimize both bioenergetic efficiency and anabolic requirements. Failure in switching bioenergetic dependence can lead to maladaptation and pathogenesis. While cellular degradation is known to recycle precursor molecules for anabolism, its potential role in regulating energy production remains less explored. the bioenergetic switch between glycolysis and mitochondrial respiration involves transcription factors and organelle homeostasis, which are both regulated by the cellular degradation pathways. A growing body of studies has demonstrated that both stem cells and differentiated cells exhibit bioenergetic switch upon perturbations of autophagic activity or endolysosomal processes. Here, we highlighted the current understanding of the interplay between degradation processes, specifically autophagy and endolysosomes, transcription factors, endolysosomal signaling, and mitochondrial homeostasis in shaping cellular bioenergetics. this review aims to summarize the relationship between degradation processes and bioenergetics, providing a foundation for future research to unveil deeper mechanistic insights into bioenergetic regulation.

关键词： autophagy bioenergetics endolysosome energy production glycolysis metabolic reprogramming mitochondria

Advances in Graphene‑Based Electrode for triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui Guo Yun chen Hao Zhang Jiawei Xiao Maoxiang Hou Huilong Liu Li Ma Xin chen chingping wong State Key Laboratory of Precision Electronic Manufacturing technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(tENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of tENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in tENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of tENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based tENGs in various scenarios as well as the enhancement of graphene electrodes for tENG performance are *** addition,the future development of graphene electrode-based tENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based tENGs.

关键词： triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor

Status and prospects for symmetric organic redox flow batteries

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Journal of Energy chemistry 2025年第1期100卷 125-143页

作者： Md Al Raihan c.Adam Dyker Department of chemistry University of New Brunswick

As environmental concerns from fossil fuel consumption intensify, large-scale energy storage becomes imperative for the integration of renewable sources like wind, hydro, and solar with the electrical *** flow batteries, particularly those employing organic molecules, are positioned as a key technology for this purpose. this review explores the growing field of symmetric organic redox flow batteries(ORFBs) within this context. Unlike traditional asymmetric designs based on unique active materials for each electrode, symmetric ORFBs involve a single bipolar species for both electrodes. this review highlights the benefits of a symmetric design, and categorizes five distinct classes of organic bipolar molecules used in both aqueous and non-aqueous solvents. By providing a comprehensive overview of their cell cycling and performance characteristics, the strengths and weaknesses of the diverse categories of bipolar molecules are highlighted for both solvent systems, as are opportunities for future development. this should guide new research directions and advance the development of practical symmetric ORFBs.

关键词： Redox flow battery Symmetric battery Organic battery Aqueous electrolyte Non-aqueous electrolyte

Parameters selection in gene selection using Gaussian kernel support vector machines by genetic algorithm

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2005年第10期6卷 961-973页

作者：毛勇周晓波皮道映孙优贤 wong Stephen t.c. National Laboratory of Industrial control technology Institute of Modern Control Engineering Zhejiang University Hangzhou 310027 China Harvard center for Neurodegeneration and Repair Harvard Medical School and Brigham and Women’s Hospital Harvard Medical School Harvard University Boston MA 02115 USA

In microarray-based cancer classification, gene selection is an important issue owing to the large number of variables and small number of samples as well as its non-linearity. It is difficult to get satisfying results by using conventional linear sta- tistical methods. Recursive feature elimination based on support vector machine (SVM RFE) is an effective algorithm for gene selection and cancer classification, which are integrated into a consistent framework. In this paper, we propose a new method to select parameters of the aforementioned algorithm implemented with Gaussian kernel SVMs as better alternatives to the common practice of selecting the apparently best parameters by using a genetic algorithm to search for a couple of optimal parameter. Fast implementation issues for this method are also discussed for pragmatic reasons. the proposed method was tested on two repre- sentative hereditary breast cancer and acute leukaemia datasets. the experimental results indicate that the proposed method per- forms well in selecting genes and achieves high classification accuracies with these genes.

关键词： Gene selection, Support vector machine (SVM), Recursive feature elimination (RFE), Genetic algorithm (GA),Parameter selection

A tV-Based Iterative Regularization Method for the Solutions of thermal convection Problems

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communications in computational Physics 2013年第9期14卷 1120-1146页

作者： Eric t.chung Jeff c.-F.wong Department of Mathematics Lady Shaw BuildingThe Chinese University of Hong KongShatinHong Kong

Linear/nonlinear and Stokes based-stabilizations for the filter equations for damping out primitive variable(PV)solutions corrupted by uniformly distributed randomnoises are numerically studied through the natural convection(Nc)aswell as the mixed convection(Mc)*** most recognizable filter-scheme is based on a combination of the negative Laplace equation multiplied with the selection of the spatial scale and a linear function in order to preserve the uniqueness of the filtered solution.A more complicated filter-scheme,based on a Stokes problem which couples a filtered velocity and a filtered(artificial)pressure(or Lagrange multiplier)in order to enforce the incompressibility constraint,is also *** and Stokes basedfilters via nested iterative(NI)filters and the consistent splitting scheme(cSS)are proposed for the Nc/Mc *** by the total-variation(tV)model of image diffusion,well preserved feature flow patterns from the corrupted Nc/Mc environment are obtained by tV-Stokes based-filters together with the *** experimental results show that our proposed algorithms are effective and efficient in eliminating the unwanted spurious oscillations and preserving the accuracy of thermal convective fluid flows.

关键词： Linear/nonlinear differential filter Stokes differential filters Leray-alpha model total-variation regularization

the Weakly Potency of certain HNN Extensions of Nilpotent Groups

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Algebra colloquium 2014年第4期21卷 689-696页

作者： K.B. wong P.c. wong Institute of Mathematical Sciences University of Malaya 50603 Kuala Lumpur Malaysia

In this paper we give a characterization for certain HNN extensions oi suogroup separable groups with normal associated subgroups to be weakly potent. We then apply our result to show that certain HNN extensions of fi... 详细信息

关键词： weakly potent HNN extensions subgroup separable finitely generated nilpo-tent groups

Asymptotic Properties of a Modified Semi-Parametric MLE in Linear Regression with Right-censored Data

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Acta Mathematica Sinica,English Series 2002年第2期18卷 405-416页

作者： wong George Y.c. Strang cancer Prevention center.428 E 72nd Street.New York.NY 10021.USA

consider a linear regression model Y=β'X+*** Y may be right censored and the cdf F+o of e is *** show that a modified semi-parametric *** by .is strongly consistent under certain regularity *** F_o is discontinuous,then P(≠βi.o.)=0, which means that P(=βif the sample size is large)=*** latter property has not been reported for the existing *** contrast,most estimators,such as the Buckley-James estimator and M-estimators .satisfy that P(≠βi.o.)=1.

关键词： consistency Super-efficiency Semi-parametric MLE