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8篇 您的检索式:作者名="Junming Zeng"
    题名 作者 年代 出处 被引量
1LLC Resonant Converter Topologies and Industrial Applications-A Review显示文摘Owing to the advantages of high efficiency,high energy density,electrical isolation,low electromagnetic interference(EMI)and harmonic pollution,magnetic integration,wide output ranges,low voltage stress,and high operation frequency,the LLC resonant converters are widely used in various sectors of the electronics-based industries.The history and development of the LLC resonant converters are presented,their advantages are analyzed,three of the most popular LLC resonant converter topologies with detailed assessments of their strengths and drawbacks are elaborated.Furthermore,an important piece of research on the industrial applications of the LLC resonant converters is conducted,mainly including electric vehicle(EV)charging,photovoltaic systems,and light emitting diode(LED)lighting drivers and liquid crystal display(LCD)TV power supplies.Finally,the future evolution of the LLC resonant converter technology is discussed.Junming Zeng Guidong Zhang Samson Shenglong Yu Bo Zhang Yun Zhang 2020Chinese Journal of Electrical Engineering2020,6,3:6
2Combined deficiency of SLAMF8 and SLAMF9 prevents endotoxin-induced liver inflammation by downregulating TLR4 expression on macrophages显示文摘Classical signaling lymphocyte activating molecule(SLAM)family receptors are abundant within many types of immune cells,whereas the nonclassical SLAM family receptors SLAMF8 and SLAMF9,which uniquely lack cytoplasmic signaling motifs,are highly expressed by myeloid cells.Due to the potential redundancy,whether these two receptors regulate macrophage function remains largely unknown.Here,we show that SLAMF8 and SLAMF9 co-regulate macrophage-mediated liver inflammation.To overcome the redundancy,we generated mice that simultaneously lacked SLAMF8 and SLAMF9 using CRISPR-Cas9 technology.Although macrophage differentiation was not altered by the combined deficiency of SLAMF8 and SLAMF9,the loss of these two receptors significantly protected against lipopolysaccharide(LPS)-induced liver injury.SLAMF8 and SLAMF9 double-deficient mice had a prolonged survival rate and less infiltration of inflammatory cells.The depletion of macrophages using clodronate liposomes abolished the effects of SLAMF8 and SLAMF9 deficiencies on LPS-induced liver injury,which demonstrates that these receptors are required for macrophage activation following LPS challenge.Moreover,the deficiency of SLAMF8 and SLAMF9 suppressed the secretion of inflammatory cytokines by downregulating the expression of Toll-like receptor-4(TLR4),a receptor that specifically binds LPS,which led to decreased mitogen-activated protein kinases(MAPK)signaling activation.Notably,combined injections of truncated extracellular SLAMF8 and SLAMF9 proteins significantly alleviated LPS-induced liver injury.Thus,our findings provide insights into the role of SLAMF8 and SLAMF9 in endotoxin-induced liver injury and suggest that SLAMF8 and SLAMF9 are potential therapeutic targets for acute hepatic injury.Xiaokang Zeng Guangao Liu Wanwen Peng Junming He Chenxu Cai Wei Xiong Shasha Chen Meixiang Yang Zhongjun Dong 2020Cellular & Molecular Immunology2020,17,2:5
3Increased mercury pollution revealed by tree rings from the China's Tianshan Mountains显示文摘Mercury (Hg)can be transported globally by the atmospheric circulation and it accumulates and biomagnifies along food chains [1,2].Due to its threats to human health and wildlife when converted to the neurotoxin methyl mercury,variations in Hg concentration in various ecosystems were paid more attention by scientists recently.Natural processes such as geothermal activities, volcanic activities,and weathering of Hg-containing rocks,can release a mass of Hg to the environment.Anthropogenic emissions had become the main atmospheric pollution source since the Industrial Revolution.A recent study indicated that half of the Hg presented in atmosphere was sourced from human activities and about 73%total mercury was released after 1850[3].Aiming to reduce the impact of Hg to environmental and human health,UNEP (United Nations Environment Programme)passed the Minamata Convention in 2013to limit Hg emission through contro|ling technologies on air pollution.Huhu Kang Xiaohong Liu Junming Guo Guobao Xu Guoju Wu Xiaomin Zeng Bo Wang Shichang Kang 2018Science Bulletin2018,63,20:4
4Characteristics of Eddy Current Attenuation and Thickness Measurement of Metallic Plate显示文摘In eddy current testing, the law of attenuation of eddy current(EC) is of great concern. In conductive half space under the excitation of uniform magnetic field, the EC density decreases exponentially in the depth direction. However, in conductor with finite thickness tested by coil, the distribution of EC in the depth direction is more complicated. This paper studies the characteristics of EC attenuation in metallic plate of finite thickness. Simulation results show that there is an EC reflection at the bottom of plate, which changes the law of EC attenuation. A new concept, namely the equivalent attenuation coefficient, is proposed to quantify the speed of EC attenuation. The characteristics of EC attenuation are utilized to explain the nonmonotonic relation between coil voltage and plate thickness. Procedure of selecting frequency is discussed. Thereafter, measurement of plate thickness is carried out and accurate result is obtained.Zhiwei Zeng Pengcheng Ding Jiayi Li Shaoni Jiao Junming Lin Yonghong Dai 2019Chinese Journal of Mechanical Engineering2019,32,6:2
5A primary-side control scheme for high-power-factor LED driver with triac dimming capability显示文摘Zhang Junming Zeng Hulong Jiang Ting 2012IEEE Transactions on Power Elec- tronics2012,27,11:1
6Biophysical studies on the differentiation of human CD14+ monocytes into dendritic cells显示文摘Zhu Zeng Xiao Liu Yuhui Jiang Guotao Wang Jun Zhan Jun Guo Weijuan Yao Dagong Sun Weibo Ka Yan Tang Junming Tang Zongyao Wen Shu Chien 2006Cell Biochemistry and Biophysics2006,,1:1
7A primary-side control scheme for high-power-factor LED driver with TRIAC dimming capability显示文摘Zhang Junming Zeng Hulong Jiang Ting 2012IEEE Transactions on Power Electronics2012,27,11:1
8Texturization and rounded process of silicon wafers for heterojunction with intrinsic thin-layer solar cells显示文摘Kunpeng MA Xiangbin ZENG Qingsong LEI Junming XUE Yanzeng WANG Chenguang ZHAO 2014Frontiers of Optoelectronics2014,7,1:1
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