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Enhanced electrochemical performance in lithium ion batteries of a hollow spherical lithium-rich cathode material synthesized by a molten salt method

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Nano Research 2014年第1期7卷 110-118页

作者： xin he Jun wang Richard Kloepsch Steffen Krueger Haiping Jia Haidong Liu Britta Vortmann Jie Li MEET Battery Research Center/Institute of Physical Chemistry University of Muenster Corrensstrasse 46 D-48149 Muenster Germany

A high voltage layered Li1.2Ni0.16Co0.08Mn0.56O2 cathode material with a hollow spherical structure has been synthesized by molten-salt method in a NaCI flux. Characterization by X-ray diffraction and scanning electron microscopy confirmed its structure and proved that the as-prepared powder is constituted of small, homogenously sized hollow spheres （1-1.5 μm）. The material exhibited enhanced rate capability and high first cycle efficiency due to the good dispersion of secondary particles. Galvanostatic cycling at different temperatures （20, 40, and 60 ℃） and a current rate of 2 C （500 mA.g-1） showed no significant capacity fade.

关键词： Li-rich cathode nano hollow sphere molten salt synthesis electrochemicalperformance lithium ion batteries

Study of 3-D Numerical Simulation for Gas Transfer in the Goaf of the Coal Mining

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Journal of China University of Mining and Technology 2007年第2期17卷 152-157页

作者： WU Zheng-yan JIANG Shu-guang he xin-jian wang Lan-yun LIN Bai-quan School of Mining and Safety Engineering China University of Mining ＆ Technology Xuzhou Jiangsu 221008 China

In order to simulate field distribution rules,mathematical models for 3-D air flows and gas transfer in the goaf of the coal mining are established,based on theories of permeability and dynamic dispersion through porous media. A gas dispersion equation in a 3-D field is calculated by use of numerical method on a weighted upstream multi-element balance. Based on data of an example with a U type ventilation mode,surface charts of air pressure distribution and gas concentration are drawn by Graphtool software. Finally,a comparison between actually measured results in the model test and the numerical simulation results is made to proves the numerical implementation feasible.

关键词： 3D numerical simulation of gas transfer in the goaf air pressure distribution in the goaf weighted upstream multi-element balance numerical simulation method

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Synthesis of 6-sulfamoyl-4-oxoquinoline-3-carboxylic acid derivatives as integrase antagonists with anti-HIV activity

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Chinese Chemical Letters 2009年第7期20卷 789-792页

作者： Zai Gang Luo Cheng Chu Zeng Lei Fu Yang Hong Qiu he Cun xin wang Li Ming Hu College of Life Science and Bioengineering Beijing University of Technology Beijing 100124 China

A series of novel 6-sulfamoyl-4-oxoquinoline-3-carboxylic acids derivatives have been synthesized and screened for HIV integrase inhibition activity. Their structures were confirmed by ESI-MS, ^1H NMR and ^13C NMR. 2... 详细信息

关键词： Quinoline Integrase Anti-HIV-1 activity

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Closed Analytical Solution of Breakdown Voltage for Planar Junction and Lateral Curvature Effect

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Journal of Semiconductors 1999年第9期20卷 753-758页

作者： he Jin\ wang xin\ Chen xingbi(Institute of Microelectronics,University of Electronic Science and Technology of China, Chengdu\ 610054) 电子科技大学微电子所四川成都

The effect of the lateral curvature upon the breakdown voltage for a planar junction is investigated in this *** on the approximation of the effective junction curvature which is determined by the junction depth and the lateral curvature,the analytical solution of breakdown voltage for the planar junction can be found,and the results agree with the numerical simulated and experimental results very well.

关键词： Closed Analytical Solution of Breakdown Voltage for Planar Junction and

Study on Interfacial SiO2 Layer of Silicon Direct Bonding

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Journal of Semiconductors 1999年第4期 3-5页

作者： he Jin, wang xin, Chen xingbi (Institute of Microelectronics, University of Electronic Science and Technology of China, Chengdu 610054)

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｒｅｃｅｎｔｙｅａｒｓｓｉｌｉｃｏｎｄｉｒｅｃｔｂｏｎｄｉｎｇ（ＳＤＢ）ｈａｓｂｅｅｎｄｅｍｏｎｓｔｒａｔｅｄａｓａｐｒｏｍｉｓｉｎｇｔｅｃｈｎｏｌｏｇｙｆｏｒＭＥＭＳ（ｍｉｃｒｏ－ｅｌ... 详细信息

１ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｒｅｃｅｎｔｙｅａｒｓｓｉｌｉｃｏｎｄｉｒｅｃｔｂｏｎｄｉｎｇ（ＳＤＢ）ｈａｓｂｅｅｎｄｅｍｏｎｓｔｒａｔｅｄａｓａｐｒｏｍｉｓｉｎｇｔｅｃｈｎｏｌｏｇｙｆｏｒＭＥＭＳ（ｍｉｃｒｏ－ｅｌｅｃｔｒｏｎ－ｍａｃｈｉｎｅ－ｓｙ...

关键词： SiO2 Layer Bonding Direct Interfacial Silicon

Establishment of goat osteoradionecrosis animal model

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中国口腔颌面外科杂志 2008年第B5期6卷 86-87页

作者： Jie he Yue he Zhong he wang xin Dong Fan Wei Liu Qiu Department of Stomatology Ninth People's Hospital School of Medicine Shanghai Jiao Tong University Shanghai 200011 China

A Risk Score System for Myopia Symptom Warning

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Current Medical Science 2019年第3期39卷 455-462页

作者： Dan-dan DU Wen-long XU Li-hua YANG he-xin wang Chang-mei GU Jia TANG Fang LI Ting XU Shi-qing WU Mei-xia LU Department of Epidemiology and Statistics and the Ministry of Education (MOE) Key Lab of Environment and health School of Public Health Tongji Medical College Huazhong University of Science and Technology Wuhan 430030 China Wuhan Center for Adolescent Poor Vision Prevention & Control Wuhan 430015 China Wuhan Commission of Experts for the Prevention &. Control of Adolescent Poor Vision Wuhan 430015 China China Innovation and Research and Development Center Carl Zeiss (Shanghai) Co. Ltd. ZEISS Group Shanghai 200131 China Wuhan Academy of Educational Science Wuhan 430030China Wuhan Centers for Disease Prevention & Control Wuhan 430015 China

Myopia is the leading cause of visual impairments worldwide. Some studies revealed that visual experience in early life affected the final myopia, indicating that environmental factors play an impellent role in the development of myopia. However, risk factors of myopia are still not identified among adolescents in China. A total of 4104 cases of myopia symptom and 3306 emmetropia controls were selected from students in primary and middle schools in Wuhan in 2008. We identified the risk factors associated with myopia symptom by multivariate logistic regression in this cross-sectional study and constructed a risk score system for myopia symptom. The value of the area under the receiver operating characteristic curve (ROC) was 0.735. Furthermore, we followed up 93 students aged 7-9 years for one year and calculated the total points using the score system. We found no significant difference between the final myopia symptom and the results predicted by the total points by pair chi-square test (P>0.05). The score system had a modest ability to estimate the risk factors of myopia symptom. Using this score system, we could identify the students who are at risk of myopia symptom in the future according to their behaviors and environmental factors, and take measures to slow the progress of myopia symptom.

关键词： myopia symptom adolescents risk score system

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： Song he Li Li Sai wang Shao-Jiang wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes

Genome assembly of autotetraploid Actinidia arguta highlights adaptive evolution and enables dissection of important economic traits

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Plant Communications 2024年第6期5卷 173-192页

作者： Xue-Mei Lu Xiao-Fen Yu Guo-Qiang Li Ming-Hao Qu Huan wang Chuang Liu Yu-Ping Man Xiao-Han Jiang Mu-Zi Li Jian wang Qi-Qi Chen Rui Lei Cheng-Cheng Zhao Yun-Qiu Zhou Zheng-wang Jiang Zuo-Zhou Li Shang Zheng Chang Dong Bai-Lin wang Yan-Xiang Sun Hui-Qin Zhang Jie-Wei Li Quan-Hui Mo Ying Zhang xin Lou Hai-Xu Peng Ya-Ting Yi he-xin wang Xiu-Jun Zhang Yi-Bo wang Dan wang Li Li Qiong Zhang Wen-Xia wang Yongbo Liu Lei Gao Jin-Hu Wu Yan-Chang wang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenChinese Academy of SciencesWuhanHubeiChina Key Laboratory of Western China’s Environmental Systems(Ministry of Education) College of Earth and Environmental SciencesLanzhou UniversityLanzhouGansuChina College of Life Sciences University of Chinese Academy of SciencesBeijingChina Wuhan Frasergen Bioinformatics Co. LtdWuhanHubeiChina Institute of Soil and Fertilizer Anhui Academy of Agricultural SciencesHefeiChina College of Agricultural Sciences Xichang UniversityXichangSichuanChina Department of Horticulture Heilongjiang Academy of Agricultural SciencesHarbinHeilongjiangChina College of Life Sciences Langfang Normal UniversityLangfangHebeiChina Institute of Horticulture Zhejiang Academy of Agricultural SciencesHangzhouZhejiangChina Guangxi Institute of Botany Chinese Academy of SciencesGuilinGuangxiChina Xi’an Botanical Garden of Shaanxi Province Institute of Botany of Shaanxi ProvinceXi’anShaanxiChina Institute of Modern Agricultural Research Dalian UniversityDalianLiaoningChina Bioinformatics Center College of Plant Science and TechnologyBeijing University of AgricultureBeijingChina College of Agriculture Eastern Liaoning UniversityDandongLiaoningChina Dalian Institute of Chemical Physics Chinese Academy of SciencesDalianLiaoningChina State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment Chinese Research Academy of Environmental SciencesBeijingChina Hubei Hongshan Laboratory WuhanHubeiChina The New Zealand Institute for Plant and Food Research Limited AucklandNew Zealand

Actinidia arguta,the most widely distributed Actinidia species and the second cultivated species in the genus,can be distinguished from the currently cultivated Actinidia chinensis on the basis of its small and smooth fruit,rapid softening,and excellent cold *** evolution of tetraploid Actinidia species and the genetic basis of their important agronomic traits are still ***,we generated a chromosome-scale genome assembly of an autotetraploid male *** *** genome assembly was 2.77 Gb in length with a contig N50 of 9.97 Mb and was anchored onto 116 *** and clustering of 101 geographically representative accessions showed that they could be divided into two geographic groups,Southern and Northern,which first diverged 12.9 million years *** underwent two prominent expansions and one demographic bottleneck from the midPleistocene climate transition to the late *** genomics studies using paleoclimate data enabled us to discern the evolution of the species’adaptation to different historical *** genes(AaCEL1,AaPME1,and AaDOF1)related to flesh softening were identified by multi-omics analysis,and their ability to accelerate flesh softening was verified through transient expression assays.A set of genes that characteristically regulate sexual dimorphism located on the sex chromosome(Chr3)or autosomal chromosomes showed biased expression during stamen or carpel *** chromosome-level assembly of the autotetraploid *** genome and the genes related to important agronomic traits will facilitate future functional genomics research and improvement of ***.

关键词： kiwiberry dioecism adaptive evolution paleoclimate GEA rapid softening