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Energy & Environmental Materials 2024年第1期7卷 107-113页

作者： Bing Wu Jan Luxa Jiří Šturala Shuangying Wei lukáš Děkanovský Abhilash Karuthedath Parameswaran Min Li Zdenek Sofer Department of Inorganic Chemistry University of Chemistry and Technology PragueTechnická 516628Prague Czech Republic

The growing demand for substitutes of lithium chemistries in battery leads to a surge in budding novel anion-based electrochemical energy storage,where the chloride ion batteries(CIBs)take over the *** application of CIBs is limited by the dissolution and side reaction of chloride-based electrode materials in a liquid *** the flipside,its solid-state electrolytes are scarcely reported due to the challenge in realizing fast Cl^(-)*** present study reports[Al(DMSO)_(6)]Cl_(3),a solid-state metal-organic material,allows chloride ion *** strong Al-Cl bonds in AlCl_(3)are broken down after coordinating of Al^(3+)by ligand DMSO,and Cl^(-)in the resulting compound is weakly bound to complexions[Al(DMSO)_(6)]^(3+),which may facilitate Cl^(-)*** partial replacement of Cl^(-)with PF_(6)^(-),the room-temperature ionic conductivity of as-prepared electrolyte is increased by one order of magnitude from 2.172×10^(-5)S cm^(-1)to 2.012×10^(-4)S cm^(-1).When they are assembled with Ag(anode)/Ag-AgCl(cathode)electrode system,reversible electrochemical redox reactions occur on both sides,demonstrating its potential for solid-state chloride ion *** strategy by weakening the bonding interaction using organic ligands between Cl^(-)and central metallic ions may provide new ideas for developing solid chloride-ion conductors.

关键词： [Al(DMSO)_(6)]Cl_(3) chloride-ion batteries ionic conductivity metal-organic solid-state electrolytes

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结合频域有限差分法分析二维柱体电磁散射

电子科技大学学报 2001年第5期30卷 445-448页

作者：朱汉清吴正德 K.M.luk 电子科技大学应用物理所成都610054 香港城市大学电子工程系

引入多波前算法,提出了结合频域有限差分法分析二维柱体的电磁散射问题。数值计算过程中利用Murs二阶吸收边界条件和场平均吸收条件截断网格;作为算例,分析了一无限长理想导体柱对平面电磁波的散射,由于使用了多波前算法求解差分矩阵方... 详细信息

引入多波前算法,提出了结合频域有限差分法分析二维柱体的电磁散射问题。数值计算过程中利用Murs二阶吸收边界条件和场平均吸收条件截断网格;作为算例,分析了一无限长理想导体柱对平面电磁波的散射,由于使用了多波前算法求解差分矩阵方程,大大地减少了计算时间,数值结果表明了该方法的有效性。

关键词：频域有限差分法多波前算法吸收边界条件电磁散射二维柱体

An Evaluation Model for the Coordinated Development of a Circular Economy in China and Its Application to Energy-intensive Industries

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Frontiers of Engineering Management 2014年第4期1卷 364-371页

作者： Ji-liang Zheng Chen Zheng Pan Chen Ching Yuan luk Faculty of Management & Economics Kunming University of Science& Technology Zhongshan Securities Company

Energy-intensive industries(EIIs) are fundamental to the industrial development of China and are also the key industries of a circular economic infrastructure. It is worth paying attention to the coordinated development of a circular economy using EIIs due to the present interrelationship among EIIs. It is related to the optimization and comprehensive performance improvement of a circular economy. Based on the perspective of order parameter, this study uses economic and environmental subsystems to establish an evaluation model that examines the coordinated development of a circular economy within six main EIIs and an EII cluster from 2006 to 2011 in China. The result shows that the level of coordinated development in a circular economy among six EIIs differs and the level of coordinated development of circular economy among the EII cluster lags behind that of each EII examined. It also shows that the outside coordinated degree of EIIs is lower than the inside coordinated degree of each EII.

关键词： order parameter coordinated degree evaluation energy-intensive industry circular economy

Full-space Cloud of Random Points with a Scrambling Metasurface

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Light(Science & Applications) 2018年第1期7卷 467-474页

作者： Zile Li Qi Dai Muhammad Q.Mehmood Guangwei Hu Boris luk’yanchuk Jin Tao Chenglong Hao Inki Kim Heonyeong Jeong Guoxing Zheng Shaohua Yu Andrea Alù Junsuk Rho Cheng-Wei Qiu School of Electronic Information Wuhan UniversityWuhan 430072China NOEIC State Key Laboratory of Optical Communication Technologies and NetworksWuhan Research Institute of Posts and TelecommunicationsWuhan 430074China Department of Electrical Engineering Information Technology University of the PunjabFerozpur Road54000 LahorePakistan Department of Electrical and Computer Engineering National University of Singapore4 Engineering Drive 3Singapore 117583Singapore Advanced Science Research Center City University of New YorkNew York 10031USA Data Storage Institute A*STAR(Agency for ScienceTechnology and Research)2 Fusionopolis Way#08-01Innovis 138634Singapore Department of Mechanical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea Department of Chemical Engineering Pohang University of Science and Technology(POSTECH)Pohang 37673Republic of Korea National Institute of Nanomaterials Technology(NINT) Pohang 37673Republic of Korea

With the rapid progress in computer science,including artificial intelligence,big data and cloud computing,full-space spot generation can be pivotal to many practical applications,such as facial recognition,motion detection,augmented reality,*** opportunities may be achieved by using diffractive optical elements(DOEs)or light detection and ranging(LIDAR).However,DOEs suffer from intrinsic limitations,such as demanding depth-controlled fabrication techniques,large thicknesses(more than the wavelength),Lambertian operation only in half space,*** nevertheless relies on complex and bulky scanning systems,which hinders the miniaturization of the spot ***,inspired by a Lambertian scatterer,we report a Hermitian-conjugate metasurface scrambling the incident light to a cloud of random points in full space with compressed information density,functioning in both transmission and reflection *** 4044 random spots are experimentally observed in the entire space,covering angles at nearly 90°.Our scrambling metasurface is made of amorphous silicon with a uniform subwavelength height,a nearly continuous phase coverage,a lightweight,flexible design,and low-heat ***,it may be mass produced by and integrated into existing semiconductor foundry *** work opens important directions for emerging 3D recognition sensors,such as motion sensing,facial recognition,and other applications.

关键词： conjugate directions amorphous

The Impact of Omega-3 Fatty Acid Use on the Risk of Atrial Fibrillation in Patients with Cardiovascular Disease

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International Journal of Clinical Medicine 2011年第1期2卷 23-27页

作者： Brian J. Barnes Patricia A. Howard Scott Solomon Warren Chen James L. vacek School of Pharmacy University of Kansas Medical Center Division of Cardiovascular Diseases and the Car diovascular Research Institute University of Kansas Medical Center School of Medicine University of Kansas Medical Center

Fish oils containing omega-3 fatty acids (OM3FA) are widely prescribed in the management of dyslipidemia. An asso-ciation between OM3FA and reduced risk of atrial fibrillation (AF) has been proposed. We examined the impact of OM3FA exposure on the risk of developing AF in patients with cardiovascular disease. Data was obtained from elec-tronic medical records of patients seen by our cardiology service between 2005 and 2007. Patients were excluded if AF developed prior to, or on the day of, OM3FA exposure. A total of 11,360 subjects were eligible for analyses. Subjects exposed to OM3FA were at higher risk for AF. Nearly all AF risk factors were significantly more prevalent in the OM3FA exposed group. As expected, those prescribed OM3FA were also more likely to be prescribed statins, ACE in-hibitors, aspirin, and beta blockers. AF occurred in 8.5% (221/2600) of OM3FA exposed subjects and 23.5% (2054/8760) of those not exposed. After controlling for AF risk factors, OM3FA exposed subjects were 74% less likely to develop AF than those not exposed to OM3FA (odds ratio 0.26, 95%CI 0.22-0.30, p < 0.0001). After controlling for risk factors for AF, OM3FA use is significantly associated with a reduced risk for AF in patients with cardiovascular disease. Potential mechanisms which may explain the ability of OM3FAs to reduce AF include its anti-inflammatory and anti-arrhythmic properties. The optimal dose of OM3FA to prevent AF is unknown and warrants prospective as-sessment in a randomized controlled trial of OM3FAs powered to detect significant differences in AF.

关键词： Omega-3 Fatty Acids Atrial Fibrillation

Prophylactic uses of integrin CD18-βA peptide in a murine polymicrobial peritonitis model

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World Journal of Gastroenterology 2010年第21期16卷 2648-2656页

作者： Kwong-Fai Wong Jana Wo David Ho Ronnie T Poon José M Casasnovas John M luk Department of Pharmacology and Surgery National University Hospital SystemNational University of SingaporeSingapore 117597Singapore Department of Surgery Queen Mary HospitalPokfulamHKSARHong KongChina Centro Nacional de Biotecnología CSICCampus Universidad Autónoma28049 MadridSpain

AIM:To evaluate the prophylactic properties of integrin CD18-βA peptide in a murine model of abdominal polymicrobial peritonitis and ***:Bacterial sepsis was induced in Institute of Cancer Research(ICR) mice by cecal ligation and puncture(CLP) *** mice were then injected with either sterile saline or CD18-βA peptide intraperitoneally at 2 h after surgery,and were sacrificed at 12 and 24 h after *** samples were immediately collected,and analyzed for endotoxin activity and tumor necrosis factor(TNF)-α and interleukin(IL)-*** and liver were studied for CD45+ leukocyte and CD3 mRNA *** expression of intercellular adhesion molecule(ICAM)-1,vascular cell adhesion molecule(VCAM) and E-selectin was also ***:Intraperitoneal injection of CD18-βA peptide significantly suppressed circulating endotoxin activity(P<0.01) at 24 h,as well as serum levels of TNF-α(P<0.05 at 12 and 24 h) and IL-6(P<0.01 at 12 h,P<0.05 at 24 h) in CLP-inflicted ***18-βA peptide also abrogated leukocyte infiltration into liver and lungs as unveiled by reduced CD45+ leukocyte and CD3 mRNA ***,the peptide significantly reduced pulmonary expression of VCAM(P<0.01 at 12 h,P<0.001 at 24 h),E-selectin(P<0.01 at 12 and 24 h),and ICAM-1(P<0.01 at 12 h,P<0.001 at 24 h).These actions of CD18-βA peptide collectively protected septic mice against lethality(P<0.01).CONCLUSION:CD18-βA peptide is a potent endotoxin antagonist that can protect surgical patients against sepsis-associated lethality.

关键词： Bacterial endotoxin Integrin CD18 Inflammation Biotherapeutic peptide

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分析波导问题的松弛迭代区域分解法

电子与信息学报 2002年第11期24卷 1687-1691页

作者：朱汉清龙毅吴正德 K.M.luk 电子科技大学应用物理所成都610054 香港城市大学电子工程系

针对基于Schwarz交替法的选代区域分解法,在分析波导问题时遇到的不收敛的困难,该文从实际场分布出发,在划分区域的虚拟边界上给出了连接子域的吸收虚拟边界条件,用以保证相邻子域间的波传播,从而构建了一种能够分析波导问题的收敛的迭... 详细信息

针对基于Schwarz交替法的选代区域分解法,在分析波导问题时遇到的不收敛的困难,该文从实际场分布出发,在划分区域的虚拟边界上给出了连接子域的吸收虚拟边界条件,用以保证相邻子域间的波传播,从而构建了一种能够分析波导问题的收敛的迭代区域分解法。在此基础上进一步引入松弛算法,用于加快迭代收敛速度。数值计算结果表明了该方法的有效性。

关键词：区域分解法虚拟边界条件迭代算法松弛算法波导问题

A Wideband Dual Polarization Patch Antenna with L-probes for Pattern Reconfigurable Applications

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A Wideband Dual Polarization Patch Antenna with L-probes for...

Novel lead-free BCZT-based ceramic with thermally-stable recovered energy density and increased energy storage efficiency

2005'全国微波毫米波会议

作者： Steven Shing-Lung Yang Kwai-Man luk Department of Electronic Engineering City University of Hong Kong 83 Tat Chee Avenue

A L-probes and X-probe coupled circular patch antenna with four metallic shorting posts is *** conical and the dual polarization broadside modes could be excited separately by the center X-probe and two sets of L-shaped probes at the same frequency range. For a tested antenna operated at 1.95GHz,the impedance matching bandwidth(S<-10 dB) is 29%,the port isolation between the conical(Port 1) and broadside ports(Port 2/3) is better than 25dB and the port isolation between the broadside ports(Port 2 and 3) is better than *** simulated gains of the conical and broadside modes are 4dBi and 10dBi *** suitable switching feed networks,the antenna can be reconfigurable in radiation pattern.

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Journal of Materiomics 2022年第4期8卷 873-881页

作者： Zouhair Hanani Soukaina Merselmiz M'barek Amjoud Daoud Mezzane Mohammed Lahcini Jaafar Ghanbaja Matjaz Spreitzer Damjan Vengust Mimoun El Marssi Igor A.luk'yanchuk Zdravko Kutnjak Brigita Rozic Mohamed Goune IMED-Lab Cadi Ayyad UniversityAvenue Abdelkrim El KhattabiP.B.549Marrakesh40000Morocco ICMCB University of Bordeaux87 Avenue Du Dr Albert SchweitzerPessac33600France Jozef Stefan Institute Jamova Cesta 39Ljubljana1000Slovenia LPMC University of Picardy Jules Verne33 Rue Saint LeuAmiens80039France Mohammed VI Polytechnic University Lot 660-Hay Moulay RachidBen Guerir43150Morocco IJL University of Lorraine54000NancyFrance Department of Building Materials Kyiv National University of Construction and ArchitectureKyiv03680Ukraine

The eco-responsible lead-free piezoelectric ceramics have been intensively searched for more than adecade, however, the final goal to replace toxic ceramics like lead zirconate titanate (PZT) with lead-freecompounds, having comparable or even better performance has not yet been reached. In this road, thelead-free ceramics Ba_(0.85)Ca_(0.15)Zr_(0.1)Ti_(0.9)O_(3) (BCZT), possessing excellent dielectric, ferroelectric, andpiezoelectric properties are regarded as serious candidates for the PZT replacement. Besides, nano-structuring BCZT is of paramount importance to enhance these functionalities even more. Here, BCZTmultipodes are designed by template-growth hydrothermal synthesis using hydrogen zirconate titanatenanowires. We demonstrate that the fabricated BCZT multipodes exhibit high dielectric permittivity of5300 with a temperature stability coefficient of ±5.9% between 20 and 140℃. A significant recoveredenergy density of 315.0 mJ/cm^(3) with high thermal stability and high energy storage efficiency of 87.4%,and enhanced large-signal piezoelectric coefficient d^(*)_(33) (310 pm/V) are found. Compared to the tradi-tional BCZT ceramics reported in the literature, relying on high-temperature processing, our sampleexhibits boosted energy storage parameters at a much lower temperature. These outcomes may offer anew strategy to tailor eco-responsible relaxor ferroelectrics toward superior energy storage performancefor ceramic capacitor applications.

关键词： Lead-free ceramics Low temperature Piezoelectric Thermal stability Energy storage Nanostructuration

社会发展视角探索社会工作的本土化策略——以南非建构发展性社会工作体系的路径为例

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中国农业大学学报（社会科学版） 2017年第3期34卷 35-45页

作者：陆德泉香港港专学院应用社会科学系

中国社会工作发展正处于社会工作普适化和本土化的十字路口。文章分析了南非在反思殖民主义的社会治疗模式的基础上,以社会发展视角重新建构本土化的发展性社会工作的专业使命、理论知识、干预策略、技能与价值体系等。在建构立足中国... 详细信息

中国社会工作发展正处于社会工作普适化和本土化的十字路口。文章分析了南非在反思殖民主义的社会治疗模式的基础上,以社会发展视角重新建构本土化的发展性社会工作的专业使命、理论知识、干预策略、技能与价值体系等。在建构立足中国本土的发展性社会工作时,应以社会发展定位专业使命,整合扶贫与社会发展,联动发展性社会福利政策,开发多重社会工作干预模式,创新社会福利的多元治理,创新社会服务提供的治理机制,促进教育科研体系的去殖民化以及立足行动研究进行社会工作理论和实务的创新。

关键词：本土化发展性社会工作南非扶贫社会治理创新