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A New Phase for Sino-EU Economic Ties

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Beijing Review 2012年第9期55卷 16-17页

作者： loh Su Hsing Chatham House

Due to the magnitude of the euro-zone economic crisis, the main focus of China-EU relations in recent months has narrowed down to whether China will rescue the euro zone by buying euro debt with its sizeable foreign reserves. This is yet another indicator of how China-EU relations lack long-term sWategic focus and are often subjected to the ebb and flow of current events.

关键词：经贸关系中欧经济危机中国欧盟

Synthesis of a highly recoverable 3D MnO2/rGO hybrid aerogel for efficient adsorptive separation of pharmaceutical residue

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Journal of Environmental Sciences 2022年第8期34卷 194-203页

作者： Billie Yan Zhang Hiew Wan Ting Tee Nicholas Yung Li loh Kar Chiew Lai Svenja Hanson Suyin Gan Suchithra Thangalazhy-Gopakumar Lai Yee Lee Department of Chemical and Environmental Engineering University of Nottingham MalaysiaJalan Broga43500 SemenyihSelangor Darul EhsanMalaysia Department of Chemical and Environmental Engineering University of Nottingham Ningbo ChinaNingbo 315100China

Water contamination by non-steroidal anti-inflammatory drugs,such as acetaminophen,is an emerging ecological *** this study,a newthree-dimensionalmanganese dioxideengrafted reduced graphene oxide(3D MnO_(2)/rGO)hybrid aerogel was developed for acetaminophen *** synthesis involved firstly the self-assembly of GO aerogel,followed by thermal reduction and in-situ MnO_(2) growth by *** aerogel demonstrated interlinked planes with smooth surfaces deposited with MnO_(2) nanospheres and pores of 138.4–235.3μm *** influences of adsorbent dosage,initial pH,acetaminophen concentration,temperature and contact time were *** was determined that the adsorption of acetaminophen occurred on uniform sorption sites in the aerogel,as suggested by the best fit of data to the Langmuir isotherm,yielding a maximum adsorption capacity of 252.87 mg/*** highest adsorption performance of the 3D MnO_(2)/rGO aerogel was attained at a dosage of 0.6 g/L,initial pH of 6.2 and temperature of 40℃.The process kinetics were in-line with the pseudo-first-order and pseudo-second-order kinetics at 10 and 20–500 mg/L concentrations,*** assay showed the spontaneity and endothermicity features of the 3D MnO_(2)/rGO-acetaminophen *** acetaminophen adsorption mechanisms were mainly hydrogen bonding and pore ***,the as-synthesised aerogel was effectively regenerated using acetone and re-utilised in four adsorption-desorption ***,the results highly recommend the implementation of the 3D MnO_(2)/rGO hybrid aerogel for purification of wastewater polluted by acetaminophen residue.

关键词： Acetaminophen Adsorption Adsorption mechanism 3D reduced graphene oxide Manganese oxide nanoparticles Regeneration

China’s Stake In Europe

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Beijing Review 2011年第35期54卷 14-15页

作者： loh SU HSING

China’s support of the debt-ridden euro zone shows its long-term commitment to Sino-EU ties The possibility of a major default continues to hover over the EU. Greece, Portugal and Ireland have already been bailed out.

关键词： In EU China’s Stake In Europe Greek

Positive autoantibodies in living liver donors

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World Journal of Hepatology 2022年第9期14卷 1757-1766页

作者： Joyce loh Koji Hashimoto Choon Hyuck David Kwon Masato Fujiki Jamak Modaresi Esfeh Department of Internal Medicine Cleveland Clinic FoundationClevelandOH 44195United States Digestive Diseases Institute Cleveland Clinic FoundationClevelandOH 44195United States Digestive Disease and Surgery Institute Cleveland Clinic FoundationClevelandOH 44195United States

BACKGROUND There is a nationwide shortage of organs available for liver *** donors help meet this growing *** uncommonly,donors will have positive ***,it is unclear whether donor positive autoantibodies are correlated with worse outcomes following living liver donor *** To analyze the significance of positive autoantibodies in donors on post-transplant outcomes in *** We performed a retrospective review of living liver donors who had undergone liver transplantation between January 1,2012 and August 31,*** characteristics and pre-transplant data including antinuclear antibodies(ANA)and anti-smooth muscle antibody titers were collected in *** of interest were post-transplantation complications including mortality,biliary strictures,biliary leaks,infection,and *** recipients and donors without measured pre-transplant autoantibody serologies were excluded from this *** 172 living donor liver transplantations were performed during the study period,of which 115 patients met inclusion criteria.37(32%)living donors were autoantibody-positive with a median ANA titer of 1:160(range 1:80 to 1:1280)and median anti-SMA titer of 1:40(range 1:20 to 1:160).There were no significant differences in baseline demographics between the autoantibody positive and negative ***-transplantation rates of death(P value=1),infections(P value=0.66),and overall rates of complications(P value=0.52)were similar between the autoantibody positive and negative *** incidences of anastomotic strictures and rejection were observed in the autoantibody positive group;however,these differences were not statistically significant(P value=0.07 and P value=0.30 respectively).CONCLUSION Isolated pre-transplant autoantibody positivity is not correlated to worse post-transplant outcomes in living liver donor transplants.

关键词： Antinuclear antibodies Anti-smooth muscle antibody Liver transplantation Treatment outcome Transplant donors

不平衡负载工况下三相变流器有源功率解耦控制

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电网技术 2019年第3期43卷 1056-1065页

作者：许泽富唐芬周家宇辛振 Poh Chiang loh 国家能源主动配电网技术研发中心(北京交通大学) 北京市海淀区100044 北京电动车辆协同创新中心(北京交通大学) 北京市海淀区100044 香港中文大学电子工程系香港999077

三相电压源型变流器(VSC)对于微电网的稳定运行有着重要的作用。然而,孤岛工况下带三相不平衡负载运行时,交流侧产生的二次脉动功率耦合至直流侧,导致系统的工作性能降低并影响系统的寿命。针对该问题,在二次功率脉动分析的基础上,提出... 详细信息

三相电压源型变流器(VSC)对于微电网的稳定运行有着重要的作用。然而,孤岛工况下带三相不平衡负载运行时,交流侧产生的二次脉动功率耦合至直流侧,导致系统的工作性能降低并影响系统的寿命。针对该问题,在二次功率脉动分析的基础上,提出了一种基于虚拟三相瞬时功率的解耦控制策略,通过控制虚拟三相瞬时功率脉动分量为0,在不增加开关器件的情况下,利用LCL滤波器中电容提供负载所需二次脉动功率,实现交直流侧二次脉动功率解耦。在此基础上进一步分析了该拓扑结构直流侧所需的最低电压以及电流应力影响因素。最后仿真和实验结果均表明所提控制策略可以较好地实现功率解耦控制,直流侧源电流二次脉动分量大大减小,有利于提高系统控制性能和实现直流侧电容轻量化。

关键词：三相变流器不平衡负载二次脉动功率解耦

Controlling phase transition in WSe_(2) towards ideal n-type transistor

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Nano Research 2021年第8期14卷 2703-2710页

作者： Yue Zheng Du Xiang Jialin Zhang Rui Guo Wenhui Wang Tao Liu Leyi loh Yanan Wang Jing Gao Cheng Han Michel Bosman Zhenhua Ni Wei Chen SZU-NUS Collaborative Innovation Center for Optoelectronic Science&Technology International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of EducationInstitute of Microscale OptoelectronicsShenzhen UniversityShenzhen 518060China Department of Physics National University of SingaporeSingapore 117551Singapore Department of Chemistry National University of SingaporeSingapore 117543Singapore School of Physics and the Key Laboratory of MEMS of the Ministry of Education Southeast UniversityNanjing 210096China Department of Materials Science and Engineering National University of Singapore Singapore 117575Singapore Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207China National University of Singapore(Suzhou)Research Institute 377Lin Quan StreetSuzhou Industrial ParkSuzhou 215123China

Two-dimensional(2D)transition metal dichalcogenides(TMDs)have been rapidly established as promising building blocks for versatile atomic scale circuits and multifunctional ***,the high contact resistance in TMDs based transistors seriously hinders their applications in complementary *** this work,we show that an Ohmic homojunction n-type tungsten diselenide(WSe_(2))transistor is realized through spatially controlling cesium(Cs)doping region near the *** find that the remarkable electron doping effect of Cs stimulates a semiconductor to metal(2H to 1T')phase transition in WSe_(2),and hence the formation of 2H-1T’hetero-phase *** method significantly optimizes the WSe_(2) transport behavior with a perfect low subthreshold swing of-61 mV/dec and ultrahigh current on/off ratio exceeding-10^(9).Meanwhile,the electron mobility is enhanced by nearly 50 *** elucidate that the ideal n-type behavior originates from the negligible Schottky barrier height of~19 meV and low contact resistance of-0.9Ωk·μm in the 2H-1T’homojunction ***,based on the Ohmic hetero-phase configuration,a WSe_(2) inverter is achieved with a high gain of~270 and low power consumption of-28 *** findings envision Cs functionalization as an effective method to realize ideal Ohmic contact in 2D WSe_(2) transistors towards high performance complementary electronic devices.

关键词： WSe_(2) Cs intercalation semiconductor to metal phase transition ideal hetero-phase transistor high gain homo-inverter

Human CD34loCD133lo fetal liver cells support the expansion of human CD34hiCD133hi hematopoietic stem cells

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Cellular & Molecular Immunology 2016年第5期13卷 605-614页

作者： Kylie Su Mei Yong Choong Tat Keng Shu Qi Tan Eva loh Kenneth TE Chang Thiam Chye Tan Wanjin Hong Qingfeng Chen Humanized Mouse Unit Institute of Molecular and Cell Biology Agency for Science Technology and Research (A＊STAR) Singapore 138673 Singapore Department of Obstetrics & Gynaecology KK Women's and Children's Hospital Singapore 229899 Singapore Department of Pathology and Laboratory Medicine KK Women's and Children's Hospital Singapore 229899 Singapore Duke-NUS Graduate Medical School Singapore 169857 Singapore Interdisciplinary Research Group in Infectious Diseases Singapore-Massachusetts Institute of Technology Alliance for Research and Technology Singapore 138602 Singapore Department of Microbiology Yong Loo Lin School of Medicine National University of Singapore Singapore 119228 Singapore

We have recently discovered a unique CD34loCD133lo cell population in the human fetal liver （FL） that gives rise to cells in the hepatic lineage. In this study, we further characterized the biological functions of FL CD341~CD133~~ cells. Our findings show that these CD341~CD133I~ cells express markers of both endodermal and mesodermal lineages and have the capability to differentiate into hepatocyte and mesenchymal lineage cells by ex vivo differentiation assays. Furthermore, we show that CD34~~CD 133I~ cel Is express growth factors that are important for human hematopoietic stem cell （HSC） expansion： stem cell factor （SCF）, insulin-like growth factor 2 （IGF2）, C-X-C motif chemokine 12 （CXCL12）, and factors in the angiopoietin-like protein family. Co-culture of autologous FL HSCs and allogenic HSCs derived from cord blood with CD34loCD133lo cells supports and expands both types of *** findings are not only essential for extending our understanding of the HSC niche during the development of embryonic and fetal hematopoiesis but will also potentially benefit adult stem cell transplantations in clinics because expanded HSCs demonstrate the same capacity as primary cells to reconstitute the human immune system and mediate long-term hematopoiesis in vivo. Together,CD34loCD133lo cells not only serve as stem/progenitor cells for liver development but are also an essential component of the HSC niche in the human FL.

关键词： epithelial-mesenchymal transition fetal liver niche hematopoietic cell expansion hematopoietic celltransplantation

From Micropores to Ultra-micropores inside Hard Carbon: Toward Enhanced Capacity in Room-/ Low-Temperature Sodium-Ion Storage

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Nano-Micro Letters 2021年第6期13卷 297-310页

作者： Jinlin Yang Xiaowei Wang Wenrui Dai Xu Lian Xinhang Cui Weichao Zhang Kexin Zhang Ming Lin Ruqiang Zou Kian Ping loh Quan-Hong Yang Wei Chen Joint School of National University of Singapore and Tianjin University International Campus of Tianjin UniversityBinhai New CityFuzhou 350207People’s Republic of China Department of Chemistry National University of Singapore3 Science Drive 3Singapore 117543Singapore National University of Singapore(Suzhou)Research Institute 377 Lin Quan StreetSuzhou Industrial ParkSuzhou 215123JiangsuChina Department of Physics National University of Singapore2 Science Drive 3Singapore 117542Singapore Nanoyang Group State Key Laboratory of Chemical EngineeringSchool of Chemical Engineering and TechnologyTianjin UniversityTianjin 300350People’s Republic of China Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials Department of Materials Science and EngineeringCollege of EngineeringPeking UniversityBeijing 100871People’s Republic of China Institute of Materials Research and Engineering(IMRE) Agency of ScienceTechnologyand Research(A*STAR)3 Research LinkSingapore 117602Singapore

Pore structure of hard carbon has a fundamental influence on the electrochemical properties in sodium-ion batteries(SIBs).Ultra-micropores(1 nm)inside carbon into ultra-micropores(<0.5 nm).Consequently,the designed carbon anode displays an enhanced capacity of 346 mAh g^(−1) at 30 mA g^(−1) with a high ICE value of~80.6%and most of the capacity(~90%)is below 1 ***,the high-loading electrode(~19 mg cm^(−2))exhibits a good temperature endurance with a high areal capacity of 6.14 mAh cm^(−2) at 25℃ and 5.32 mAh cm^(−2) at −20℃.Based on the in situ X-ray diffraction and ex situ solid-state nuclear magnetic resonance results,the designed ultra-micropores provide the extra Na+storage sites,which mainly contributes to the enhanced *** proposed strategy shows a good potential for the development of high-performance SIBs.

关键词： Carbon anode Ultra-micropores Extra sodium-ion storage sites Low-voltage capacity High areal capacity

Soluble and Stable Near Infrared Dyes

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Soluble and Stable Near Infrared Dyes