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黑龙江大学自然科学学报 2004年第4期21卷 35-36页

作者： ming-huat lim Malaya大学数学科学学院

刻划了特征不为2及3的域上所有从一个第二对称积空间到另一个的保形如λu · u(u是向量且λ是纯量) 的可分解元素的加法映射.

关键词：加法映射对称矩阵秩

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矩阵空间上秩加性的加法保持(英文)

黑龙江大学自然科学学报 2004年第4期21卷 46-49页

作者： Wai-Leong Chooi ming-huat lim Multimedia大学工程系 SelangorCyberjaya 63100马来西亚 Malaya大学数学科学学院 Kuala Lumpur 50603马来西亚

设F是域,V是或者域F上所有m × n矩阵的空间或者是特征不为2及3的域F上所有n × n对称矩阵的空间.对于每个被固定的正整数s ≥ 2,Qs定义V × V中满足rank(A + B) = rank(A) +rank(B) ≤ s的所有矩阵对(A,B)的集合.刻划了V上满足Ψ(Qs) ?... 详细信息

设F是域,V是或者域F上所有m × n矩阵的空间或者是特征不为2及3的域F上所有n × n对称矩阵的空间.对于每个被固定的正整数s ≥ 2,Qs定义V × V中满足rank(A + B) = rank(A) +rank(B) ≤ s的所有矩阵对(A,B)的集合.刻划了V上满足Ψ(Qs) ? Qs的加法映射Ψ.当charF =2时,也描述了F上从n × n矩阵空间到p × q矩阵空间保秩加性的线性算子的结构.

关键词：加法映射秩可加性张量空间对称空间

Microwave torrefaction of empty fruit bunch pellet:Simulation and validation of electric field and temperature distribution

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Journal of Bioresources and Bioproducts 2022年第4期7卷 270-277页

作者： Peter Nai Yuh Yek Sieng huat Kong ming Chiat Law Changlei Xia Rock Keey Liew Teck Sung Sie Jun Wei lim Su Shiung Lam Centre for Research of Innovation and Sustainable Development University of Technology SarawakJalan UniversitySibuSarawak 96000Malaysia School of Foundation Studies University of Technology SarawakJalan UniversitySibuSarawak 96000Malaysia Department of Mechanical Engineering Faculty of Engineering and ScienceCurtin University Malaysia CampusMiriSarawak 98009Malaysia Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China NV WESTERN PLT GeorgetownPenang 10400Malaysia Department of Fundamental and Applied Sciences HICoE-Centre for Biofuel and Biochemical ResearchInstitute of Self-Sustainable BuildingUniversity Technology PETRONASDarul RidzuanSeri IskandarPerak 32610Malaysia Higher Institution Centre of Excellence(HICoE) Institute of Tropical Aquaculture and Fisheries(AKUATROP)University Malaysia TerengganuKuala NerusTerengganu 21030Malaysia Sustainability Cluster School of EngineeringUniversity of Petroleum&Energy StudiesDehradunUttarakhand 248007India

Microwave simulation is significant in identifying a reactor design allowing the biomass to be heated and processed *** study integrated the radio frequency and transient heat transfer modules to simulate the microwave distribution and investigated the performance of microwave heating in the *** simulation results were compared with the experimental findings us-ing the finite element analysis software of COMSOL MULTIPHYSICS to predict the temperature profile and electric field of microwave in the biomass(empty fruit bunch pellets).The higher temperature distribution was observed at the bottom and centre section of the empty fruit bunch pellet bed in the reactor,showing the uniqueness of microwave *** to the simula-tion results,the temperature profile obtained through the specific cavity geometry and dielectric properties agreed with the experimental temperature *** simulated temperature profile demonstrated a logarithmic increase of 120°C/min at the first 50 s followed by 50°C/min until 350 *** experimental temperature profile showed three different heating rates before reaching 300°C,including 78.3°C/min(50-120°C),30.6°C/min(121-250°C),and 105°C/min(250-300°C).The results of this study might contribute to the improvement of microwave heating in biomass torrefaction.

关键词： Microwave Torrefaction Simulation Energy Temperature

Forward collision warning system for motorcyclist using smart phone sensors based on time-to-collision and trajectory prediction

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Journal of Intelligent and Connected Vehicles 2021年第3期4卷 93-103页

作者： Qun lim Yi lim Hafiz Muhammad Dylan Wei ming Tan U-Xuan Tan Department of Engineering Product Development Singapore University of Technology and DesignSingaporeSingapore Department of Information Systems Technology and Design Singapore University of Technology and DesignSingaporeSingapore

Purpose–The purpose of this paper is to develop a proof-of-concept(POC)Forward Collision Warning(FWC)system for the motorcyclist,which determines a potential clash based on time-to-collision and trajectory of both the detected and ego vehicle(motorcycle).Design/methodology/approach–This comes in three ***,time-to-collision value is to be calculated based on low-cost camera video ***,the trajectory of the detected vehicle is predicted based on video data in the 2 D pixel ***,the trajectory of the ego vehicle is predicted via the lean direction of the motorcycle from a low-cost inertial measurement unit ***–This encompasses a comprehensive Advanced FWC system which is an amalgamation of the three approaches mentioned ***,to predict time-to-collision,nested Kalmanﬁlter and vehicle detection is used to convert image pixel matrix to relative distance,velocity and time-to-collision ***,for trajectory prediction of detected vehicles,a few algorithms were compared,and it was found that long short-term memory performs the best on the data *** lastﬁnding is that to determine the leaning direction of the ego vehicle,it is better to use lean angle measurement compared to riding pattern classiﬁ***/value–The value of this paper is that it provides a POC FWC system that considers time-to-collision and trajectory of both detected and ego vehicle(motorcycle).

关键词： Forward collision warning Time-to-collision Advanced driving assistance system Motorcycles

An Enhanced Direct Anonymous Attestation Scheme with Mutual Authentication for Network-Connected UAV Communication Systems

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China Communications 2018年第5期15卷 61-76页

作者： Liquan Chen Sijie Qian ming lim Shihui Wang School of Information Science and Engineering Southeast University Research Center of Supply Chain and Operations Management Coventry University

In network-connected UAV(NCUAV) communication systems, user authentication is replaced by platform identity authentication and integrity check because many NC-UAVs are operated without human intervention. Direct anonymous attestation(DAA) is an attractive cryptographic scheme that provides an elegant balance between platform authentication and anonymity. However, because of the low-level computing capability and limited transmission bandwidth in UAV, the existing DAA schemes are not suitable for NC-UAV communication systems. In this paper, we propose an enhanced DAA scheme with mutual authentication(MA-DAA scheme), which meets the security requirements of NC-UAV communication systems. The proposed MA-DAA scheme, which is based on asymmetric pairings, bundles the identities of trusted platform module(TPM) and Host to solve the malicious module changing attacks. Credential randomization, batch proof and verification, and mutual authentication are realized in the MA-DAA scheme. The computational workload in TPM and Host is reduced in order to meet the low computation and resource requirements in TPM and *** entire scheme and protocols are presented,and the security and efficiency of the proposed MA-DAA scheme are proved and *** experiment results also confirm the high efficiency of the proposed scheme.

关键词： network-connected UAV trusted computing direct anonymous attestation mutual authentication trusted platform module

Protection from infection or disease? Re-evaluating the broad immunogenicity of inactivated SARS-CoV-2 vaccines

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Virologica Sinica 2022年第6期37卷 783-785页

作者： Anthony T.Tan Joey ming Er lim Antonio Bertoletti Programme in Emerging Infectious Diseases Duke-NUS Medical SchoolSingapore169857Singapore Singapore Immunology Network A*STARSingapore138648Singapore

How do we measure vaccine efficacy? The strictest but also easiest parameter to determine vaccine efficacy is its ability to block ***, if a vaccine is able to block infection, this necessarily follows that it will also prevent both disease development and viral transmission. As a consequence, antibodies, specifically neutralising antibodies, have been used as the “gold standard” correlate of protection to measure SARS-CoV-2 vaccine efficacy, given their ability to block infection.

关键词： vaccine infection vaccines

Mast Cell-Derived Exosomes at the Stimulated Acupoints Activating the Neuro-immune Regulation

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Chinese Journal of Integrative Medicine 2017年第11期23卷 878-880页

作者： CHEN Bo LI ming-yue GUO Yi ZHAO Xue lim Hui-min Calista Acu-moxibustion and Tuina Department of Tianjin University of Traditional Chinese Medicine Tianjin(300193)China Department of Clinical Practice Teaching Tianjin University of Traditional Chinese MedicineTianjin(300193)China

Exosomes are cell-derived vesicles that take part in intercellular signaling. Research has shown that acupuncture is closely related to affecting the functions of the mast cells in the local region of the acupoint, and stimulating the afferent nerve. Mast cells have a connection with the conduction within the meridians, and play an important role in immuno-regulation. The ＇synapse-like＇ connection between the mast cells and nerve endings is the basis for the exchange of information between these two tissues. Exosome mediates mast exchange of information between mast cells and the nerves, starting the process of neuro-immuno regulation. Therefore, we propose that mast cell-derived exosomes mediate the neuro-immuno regulation at the local site of acupuncture, and this is one of the key factors resulting in the effectiveness of acupuncture.

关键词： mast cell-derived exosomes acupuncture neuro-immuno regulation

Dynamic analysis of a deployable/retractable damped cantilever beam

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Applied Mathematics and Mechanics(English Edition) 2020年第9期41卷 1321-1332页

作者： ming LIU Zhi LI Xiaodong YANG Wei ZHANG CWlim Institute of Advanced Structure Technology Beijing Institute of TechnologyBeijing 100081China China Academy of Launch Vehicle Technology Beijing 100076China Beijing Key Laboratory of Nonlinear Vibrations and Strength of Mechanical Structures College of Mechanical Engineering and Applied Electronics TechnologyBeijing University of TechnologyBeijing 100124China City University of Hong Kong Shenzhen Research Institute Shenzhen 518057China Department of Architecture and Civil Engineering City University of Hong KongKowloonHong KongChina

Deployable/retractable damped cantilever beams are a class of time-varying parametric structures which have attracted considerable research interest due to their many potential applications in the intelligent robot field and *** the present work,the dynamic characteristics of a deployable/retractable damped cantilever beam are investigated experimentally and *** time-varying damping,as a function of the beam length,is obtained by both the enveloped fitting method and the period decrement ***,the governing equation of the deployable/retractable damped cantilever beam is derived by introducing the time-varying damping parameter,and the corresponding closed-form solution and vibration principles are investigated based on the averaged *** theoretical predictions for transient dynamic responses are in good agreement with the experimental *** dynamic mechanism analysis on time-varying damping offers flexible technology in mechanical and aerospace fields.

关键词： time-varying damping vibration experimental method transient response deployable/retractable damped cantilever beam

Guest Editorial:Special issue on advances in representation learning for computer vision

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CAAI Transactions on Intelligence Technology 2024年第1期9卷 1-3页

作者： Andrew Beng Jin Teoh Thian Song Ong Kian ming lim Chin Poo Lee Electrical and Electronic Engineering Department Yonsei UniversitySeoulSouth Korea Faculty of Information Science and Technology Multimedia UniversityMelakaMalaysia

Deep learning has been a catalyst for a transformative revo-lution in machine learning and computer vision in the past *** these research domains,methods grounded in deep learning have exhibited exceptional performance across a spectrum of *** success of deep learning methods can be attributed to their capability to derive potent representations from data,integral for a myriad of downstream *** representations encapsulate the intrinsic structure,fea-tures,or latent variables characterising the underlying statistics of visual *** these achievements,the challenge per-sists in effectively conducting representation learning of visual data with deep models,particularly when confronted with vast and noisy *** special issue is a dedicated platform for researchers worldwide to disseminate their latest,high-quality articles,aiming to enhance readers'comprehension of the principles,limitations,and diverse applications of repre-sentation learning in computer vision.

关键词： spite computer representation

Bioenergetic alteration in gastrointestinal cancers:The good,the bad and the ugly

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World Journal of Gastroenterology 2023年第29期29卷 4499-4527页

作者： Yu-De Chu Chun-Wei Chen ming-Wei Lai Siew-Na lim Wey-Ran Lin Liver Research Center Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Gastroenterology and Hepatology Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Pediatrics Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Neurology Linkou Chang Gung Memorial HospitalTaoyuan 333TaiwanChina Department of Medicine Chang Gung UniversityTaoyuan 333TaiwanChina

Cancer cells exhibit metabolic reprogramming and bioenergetic alteration,utilizing glucose fermentation for energy production,known as the Warburg ***,there are a lack of comprehensive reviews summarizing the metabolic reprogramming,bioenergetic alteration,and their oncogenetic links in gastrointestinal(GI)***,the efficacy and treatment potential of emerging anticancer drugs targeting these alterations in GI cancers require further *** review highlights the interplay between aerobic glycolysis,the tricarboxylic acid(TCA)cycle,and oxidative phosphorylation(OXPHOS)in cancer cells,as well as hypotheses on the molecular mechanisms that trigger this *** role of hypoxia-inducible transcription factors,tumor suppressors,and the oncogenetic link between hypoxia-related enzymes,bioenergetic changes,and GI cancer are also *** review emphasizes the potential of targeting bioenergetic regulators for anti-cancer therapy,particularly for GI *** the potential of targeting bioenergetic regulators for GI cancer therapy,the review categorizes these regulators into aerobic glycolysis/lactate biosynthesis/transportation and TCA cycle/coupled *** also detail various anti-cancer drugs and strategies that have produced pre-clinical and/or clinical evidence in treating GI cancers,as well as the challenges posed by these *** we highlight that understanding dysregulated cancer cell bioenergetics is critical for effective treatments,although the diverse metabolic patterns present challenges for targeted *** research is needed to comprehend the specific mechanisms of inhibiting bioenergetic enzymes,address side effects,and leverage high-throughput multi-omics and spatial omics to gain insights into cancer cell heterogeneity for targeted bioenergetic therapies.

关键词： Energy metabolism Mitochondria Hypoxia Oxidative phosphorylation Glycolysis Gastrointestinal neoplasms