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Measuring gravitational effect of superintense laser by spin-squeezed Bose-Einstein condensates interferometer

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Chinese Physics B 2022年第5期31卷 265-273页

作者： Eng boon Ng C.H.Raymond Ooi Department of Physics University of MalayaKuala Lumpur 50603Malaysia

We consider an extremely intense laser,enclosed by an atom *** gravitational potential generated from the high-intensity laser is solved from the Einstein field equation under the Newtonian *** compute the strength of the gravitational force and study the feasibility of measuring the force by the atom *** intense laser field from the laser pulse can induce a phase change in the interferometer with Bose-Einstein *** push up the sensitivity limit of the interferometer with Bose-Einstein condensates by spin-squeezing effect and determine the sensitivity gap for measuring the gravitational effect from intense laser by atom interferometer.

关键词： intense laser field atom interferometer Bose-Einstein condensates spin-squeezing

广西歧舌苔属植物研究及一中国新记录种毛缘歧舌苔

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西北植物学报 2024年第8期44卷 1338-1344页

作者：王顺莉韦玉梅唐启明何文钏彭涛贵州师范大学生命科学学院贵阳550025 广西壮族自治区中国科学院广西植物研究所广西喀斯特植物保育与恢复生态学重点实验室广西桂林541006 国家公园局新加坡植物园新加坡259569

【目的】了解歧舌苔属植物在广西的实际分布情况,为广西苔藓植物研究增加新资料的同时,也为中国苔藓植物多样性保护添加必要的基础数据。【方法】通过野外调查结合广西植物标本馆(IBk)馆藏标本的核查,获得歧舌苔属植物研究材料,经室内... 详细信息

【目的】了解歧舌苔属植物在广西的实际分布情况,为广西苔藓植物研究增加新资料的同时,也为中国苔藓植物多样性保护添加必要的基础数据。【方法】通过野外调查结合广西植物标本馆(IBk)馆藏标本的核查,获得歧舌苔属植物研究材料,经室内形态观察及查阅相关文献,确定其物种多样性。【结果】发现广西歧舌苔属植物标本10份,最终确认广西歧舌苔属植物3种,分别为毛缘歧舌苔[Schistochila sciurea(Nees)Schiffn.]、大歧舌苔[***(Nees&Blume)***&Steph.]、阔叶歧舌苔[***(Nees)Trevis.]。【结论】歧舌苔科以及歧舌苔属均为首次在广西记录的科属,其中毛缘歧舌苔是中国新记录种。文章对毛缘歧舌苔的形态特征进行详细描述,对另外2个种主要形态特征进行归纳,并提供各个种的引证标本信息、地理分布以及彩色图版。

关键词：歧苔类植物歧舌苔属广西新分布

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Recent Expedition in Pd-Catalyzed Sonogashira Coupling and Related Processes

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Chinese Journal of Chemistry 2023年第9期41卷 1099-1118页

作者： Pui Ying Choy kin boon Gan Fuk Yee kwong Department of Chemistry and State key Laboratory of Synthetic Chemistry The Chinese University of Hong KongShatinNew TerritoriesHong Kong SARChina Shenzhen Center of Novel Functional Molecules Shenzhen Municipal Key Laboratory of Chemical Synthesis of Medicinal Organic MoleculesCUHK Shenzhen Research InstituteNo.10.Second Yuexing RoadShenzhenGuangdong 518507China

Sonogashira cross-coupling protocol,typically showing the reaction between aryl/vinyl halide and terminal alkyne,has been a widely used protocol for constructing C(sp2)-C(sp)*** resulting internal alkynes are highly versatile for reaching differently function-alized alkyne-containing scaffolds or serving as valuable synthetic synthons to many other functional *** is worth noting that products originated from this coupling reaction are mostly applicable to be transformed into corresponding Z-alkene,alkane,or het-erocyclic moieties in natural product *** reaction conditions and catalyst systems are able to be tweaked in order to facil-itate the activation of steric hindered and/or electron-rich ***-catalyzed copper-free Sonogashira coupling reaction has caught increasing attention as the improved method can be more environmentally *** is more,the conditions of the cou-pling reaction can be readily amended to allow the fusion of other carbonylation or decarboxylation step in the catalytic cycle,and thus allow more complex yet versatile convergent synthesis to proceed in an operationally simple one-pot manner.

关键词： Sonogashira Alkynylation Palladium Multicomponent reactions Cross-Coupling

Accelerated initiation of oblique detonation induced by disturbance in detonative zone

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Chinese Journal of Aeronautics 2023年第11期36卷 153-164页

作者： Yichen ZHANG Gaoxiang XIANG Jia YU ke JIN kek.boon GOH Institute of Extreme Mechanics Northwestern Polytechnical UniversityXi’an 710129China Research and Development Institute Northwestern Polytechnical University in ShenzhenShenzhen 518057China Innovation Center NPU Chongqing Northwestern Polytechnical UniversityChongqing 401135China School of Aerospace Science and Technology Xidian UniversityXi’an 710126China Department of Mechanical Engineering School of EngineeringMonash University MalaysiaSelangor 47500Malaysia

In the real flow for high altitude,the initiation mechanism of the oblique detonation involves the coupling of complex wave structures and combustion waves,which may result in the phenomenon of *** approach of stable initiation is one of the key factors that restricting the oblique detonation engine from theory to *** wave structure,initiation characteristics and characteristic parameters of the flow field are analyzed,the two-dimensional Euler equation considering the detailed chemical reactions of multi-component are ***,the approaches of blunt bump and transverse jet are combined used to shorten the detonation distance of the oblique *** show that these methods can promote the accelerated initiation of the oblique detonation effectively,and the detonation distance can be shortened more than 90%.There are two wave structures induced by the blunt bump:weak coupled and strong coupled,adding the transverse jet promotes the transition between these two wave ***,the shape of the bump and the characteristic parameters of the transverse jet are *** streamline-shape bump can eliminate the recirculation zone formed after the circle bump and the ellipse *** transverse jet will produce an oblique detonation wave at the front of the jet position,which changes the wave structure and initiation mode of the oblique detonation *** is expected to reveal the accelerated initiation mechanism of oblique detonation under the induction zone disturbance and complex flow environment,deepen the understanding of the detonation law of oblique detonation wave under real flow conditions,and provide a scientific basic for the development of the combustor of the oblique detonation engine.

关键词： Acetylene Oblique detonation Initiation acceleration Blunt bump Transverse jet Numerical simulation

The indigenous populations as the model by nature to understand human genomic-phenomics interactions

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Quantitative Biology 2022年第1期10卷 35-43页

作者： boon-Peng Hoh Thuhairah Abdul Rahman Faculty of Medicine and Health Sciences UCSI UniversityKuala LUmpur 56000Malaysia Clinical Pathology Diagnostic Centre Research Laboratory Faculty of MedicineUniversiti Teknologi MARASungai Buloh CampusSungai Buloh 47000Malaysia

Background:The advancement of genomics has progressed in lightning speed over the past two *** large-scale genome sequencing initiatives were announced,along with the rise of the holistic precision medicine ***,the field of genomic medicine has now come to a bottleneck since genomic-phenomic interactions are not fully comprehended due to the complexity of the human systems biology and environmental influence,hence the emergence of human ***:This review attempts to provide an overview of the potential advantages of investigating the human phenomics of indigenous populations and the challenges ***:We believe that the indigenous populations serve as an ideal model to excavate our understanding of genomic-environmental-phenomics interactions.

关键词： indigenous populations Orang Asli genomics phenomics

Transactive Energy Systems in Active Distribution Networks:A Comprehensive Review

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CSEE Journal of Power and Energy Systems 2022年第5期8卷 1302-1317页

作者： Yunyang Zou Yan Xu Xue Feng R.T.Naayagi boon-Hee Soong School of Electrical and Electronic Engineering Nanyang Technological UniversitySingapore 639798Singapore Engineering Cluster Singapore Institute of TechnologySingapore 138683Singapore School of Electrical and Electronic Engineering Newcastle University InternationalSingapore 567739Singapore

Increasing penetration of distributed energy resources(DERs)introduced by different stakeholders,poses an immense challenge to power network *** traditional direct control of local DERs has the risk of violating preferences and privacies of stakeholders.A promising solution for supplydemand coordination is to utilize a transactive energy(TE)based energy management method to indirectly coordinate the local DERs,which enables the distribution-level energy providers,consumers,and prosumers to trade energy with each other through a transactive energy system(TES)trading *** paper provides a comprehensive review of a TES and presents a detailed classification from different perspectives,including TES participants,structure,commodity,clearing method,and solution *** presented detailed component-scale classification can be used as a reference for future TES ***,two additional market tools,i.e.,penalty mechanism and loss allocation mechanism,are discussed as future focus areas,which can be seen as necessary complements to a TES for ensuring feasibility and fairness of energy trading.

关键词： Auction mechanism distributed energy resources distribution locational marginal pricing game theory transactive energy uncertainty

Extrapolating neurogenesis of mesenchymal stem/stromal cells on electroactive and electroconductive scaffolds to dental and oral-derived stem cells

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International Journal of Oral Science 2022年第2期14卷 123-131页

作者： boon Chin Heng Yunyang Bai Xiaochan Li Xuehui Zhang Xuliang Deng Central Laboratory Peking University School and Hospital of StomatologyBeijingChina School of Medical and Life Sciences Sunway UniversitySubang JayaSelangor Darul EhsanMalaysia Department of Geriatric Dentistry Peking University School and Hospital of StomatologyBeijingChina Department of Dental Materials&Dental Medical Devices Testing Center Peking University School and Hospital of StomatologyBeijingChina National Engineering Laboratory for Digital and Material Technology of Stomatology NMPA Key Laboratory for Dental MaterialsBeijing Laboratory of Biomedical Materials&Beijing Key Laboratory of Digital StomatologyPeking University School and Hospital of StomatologyBeijingChina

The high neurogenic potential of dental and oral-derived stem cells due to their embryonic neural crest origin,coupled with their ready accessibility and easy isolation from clinical waste,make these ideal cell sources for neuroregeneration ***,these cells also have high propensity to differentiate into the osteo-odontogenic *** strategy to enhance neurogenesis of these cells may be to recapitulate the natural physiological electrical microenvironment of neural tissues via electroactive or electroconductive tissue engineering ***,to date,there had been hardly any such studies on these *** relevant scientific information comes from neurogenesis of other mesenchymal stem/stromal cell lineages(particularly bone marrow and adipose tissue)cultured on electroactive and electroconductive scaffolds,which will therefore be the focus of this *** there are larger number of similar studies on neural cell lines(***12),neural stem/progenitor cells,and pluripotent stem cells,the scientific data from such studies are much less relevant and less translatable to dental and oral-derived stem cells,which are of the mesenchymal *** extrapolation work is needed to validate that electroactive and electroconductive scaffolds can indeed promote neurogenesis of dental and oral-derived stem cells,which would thus facilitate clinical applications in neuroregeneration therapy.

关键词： mesenchymal conductive neural

Modeling and Simulation for Transient Thermal Analyses Using a Voltage-in-Current Latency Insertion Method

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Journal of Electronic Science and Technology 2022年第4期20卷 383-395页

作者： Wei Chun Chin boon Chun New Nur Syazreen Ahmad Patrick Goh School of Electrical and Electronic Engineering Universiti Sains MalaysiaPenang 14300

This article presents a modeling and simulation method for transient thermal analyses of integrated circuits(ICs)using the original and voltage-in-current(VinC)latency insertion method(LIM).LIM-based algorithms are a set of fast transient simulation methods that solve electrical circuits in a leapfrog updating manner without relying on large matrix operations used in conventional Simulation Program with Integrated Circuit Emphasis(SPICE)-based methods which can significantly slow down the solution *** conversion from the thermal to electrical model is performed first by using the analogy between heat and electrical *** electrical inductance has no thermal equivalence,a modified VinC LIM formulation is presented which removes the requirement of the insertion of fictitious *** examples are presented,which show that the modified VinC LIM formulation outperforms the basic LIM formulation,in terms of both stability and accuracy in the transient thermal simulation of ICs.

关键词： Latency insertion method(LIM) numerical simulation thermal analysis transient simulation

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中国红蒴真藓复合群和一个新记录种

广西植物 2024年第4期44卷 657-669,I0001-I0004页

作者：刘永英牛俊英唐启明何文钏韦玉梅焦作师范高等专科学校生物系中国河南焦作454001 广西喀斯特植物保育与恢复生态学重点实验室广西壮族自治区中国科学院广西植物研究所中国广西桂林541006 新加坡植物园国家公园局新加坡259569

该研究以经典分类学方法探讨了中国红蒴真藓复合群(Bryum atrovirens ***),重点关注根生芽胞特征在分类中的价值。以期厘清中国红蒴真藓复合群的特征和物种组成;明确各物种之间的分类界限和地理分布。结果表明:(1)中国该复合群共有9种,... 详细信息

该研究以经典分类学方法探讨了中国红蒴真藓复合群(Bryum atrovirens ***),重点关注根生芽胞特征在分类中的价值。以期厘清中国红蒴真藓复合群的特征和物种组成;明确各物种之间的分类界限和地理分布。结果表明:(1)中国该复合群共有9种,即毛状真藓(*** Schw gr.)、红蒴真藓(*** Brid.)、瘤根真藓(*** Wink.&***)、棒槌真藓[***(Schimp.)Mü***.]、球根真藓(*** Brid.)、齿缘真藓(*** Mitt.)、沙氏真藓(*** Bruch&Schimp.)、星形真藓(*** Arts)和土生真藓(*** Mohamed&Damanhuri),其中星形真藓为中国新分布种,首次观察到该种的孢子体以及红蒴真藓和齿缘真藓的中国标本产生根生芽胞。(2)该类群是适应临时环境的短命植物,主要通过根生芽胞进行无性繁殖,最主要的识别特征是芽胞的位置、颜色、形状、大小、细胞壁厚度和外层细胞是否突起及其程度等。(3)明确了每种的地理分布。综上所述,可根据根生芽胞的形态特征快速进行中国红蒴真藓复合群分类鉴定,新记录种的发现丰富了中国藓类植物新资料。

关键词：星形真藓根生芽胞真藓属新记录分类