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Recent advances in vacancy engineering for reliable lithiumsulfur batteries

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Rare Metals 2024年第2期43卷 455-477页

作者： Wen-Dong Liu Xiao Tang jun-An Feng Chao-Yue Zhang Hao Liu Chuan Shi Xiao-Xian Zhao jian-jun song College of Physics School of Chemistry and Chemical EngineeringQingdao UniversityQingdao266071China Faculty of Science Centre for Clean Energy TechnologySchool of Mathematical and Physical SciencesUniversity of Technology SydneySydneyNSW2007Australia Department of Chemistry College of ScienceHebei Agricultural UniversityBaoding071001China

The high-energy-density and low-cost features endow lithium-sulfur batteries with broad application ***,many drawbacks,especially the detrimental shuttle effect,have hindered the further development of *** response,a lot of new structures have been applied to suppress the shuttle effect and promote the development of ***,vacancy engineering has gained the attention of researchers due to its unique electronic *** review aims to analyze the application of vacancy engineering in ***,the electrochemistry of LSBs has been systematically discussed and the existing challenges as well as improvement tactics of LSBs have also been ***,the preparation methods and characterization technologies of various vacancies are summarized,including oxygen vacancies,sulfur vacancies,selenium vacancies,other anion vacancies,cation vacancies,*** latest applications of vacancy engineering in LSBs are also summarized in this ***,some prospects and insights for further investigation and practical application of vacancy engineering in LSBs are put forward.

关键词： Lithium-sulfur batteries(LSBs) Defects Vacancy engineering Electronic structure Shuttle effect

Thermodynamics in a quantum corrected Reissner-Nordstr?m-AdS black hole and its GUP-corrections

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Chinese Physics B 2024年第4期33卷 345-353页

作者：宋建君刘成周 Department of Physics Shaoxing UniversityShaoxing 312000China

We calculate the thermodynamic quantities in the quantum corrected Reissner-Nordstr?m-AdS(RN-AdS)black hole,and examine their quantum *** analyzing the mass and heat capacity,we give the critical state and the remnant state,respectively,and discuss their ***,we investigate the quantum tunneling from the event horizon of massless scalar particle by using the null geodesic method,and charged massive boson W^(±)and fermions by using the Hamilton-Jacob *** is shown that the same Hawking temperature can be obtained from these tunneling processes of different particles and ***,by using the generalized uncertainty principle(GUP),we study the quantum corrections to the tunneling and the *** the logarithmic correction to the black hole entropy is obtained.

关键词： black hole thermodynamics quantum corrections quantum tunneling generalized uncertainty principle

Delicate synthesis of quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C and Na4MnV(PO_(4))_(3)/N-C as cathode for high-rate sodium-ion batteries

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Rare Metals 2022年第5期41卷 1637-1646页

作者： Xin-Ran Qi Yuan Liu Lin-Lin Ma Bao-Xiu Hou Hong-Wei Zhang Xiao-Hui Li Ya-Shi Wang Yi-Qing Hui Ruo-Xun Wang Chong-Yang Bai Hao Liu jian-jun song Xiao-Xian Zhao Department of Chemistry College of ScienceHebei Agricultural UniversityBaoding 071001China College of Physics Qingdao UniversityQingdao 266071China Centre for Clean Energy Technology School of Mathematical and Physical SciencesFaculty of ScienceUniversity of Technology SydneySydney NSW 2007Australia

Poor conductivity and sluggish Na^(+) diffusion kinetic are two major drawbacks for practical application of sodium super-ionic conductor(NASICON) in sodium-ion batteries. In this work, we report a simple approach to synthesize quasi-inverse opal structural NASICON/N-doped carbon for the first time by a delicate one-pot solution-freeze drying-calcination process, aiming at fostering the overall electrochemical performance. Especially, the quasi-inverse opal structural Na_(3)V_(2)(PO_(4))_(3)/N-C(Q-NVP/N-C) displayed continuous pores, which provides interconnected channels for electrolyte permeation and abundant contacting interfaces between electrolyte and materials, resulting in faster kinetics of redox reaction and higher proportion of capacitive *** a cathode material for sodium-ion batteries, the Q-NVP/N-C exhibits high specific capacity of 115 mAh·g^(-1) at 1C, still 61 mAh·g^(-1) at ultra-high current density of 100C,and a specific capacity of 89.7mAh·g^(-1) after 2000 cycles at *** work displays the general validity of preparation method for not only Q-NVP/N-C,but also Na_(3)V_(2)(PO_(4))_(3),which provides a prospect for delicate synthesis of NASICON materials with excellent electrochemical performance.

关键词： Sodium battery Structural regulation Inverse opal structure Sodium super-ionic conductor(NASICON) Na_(3)V_(2)(PO_(4))_(3)

Reinforcing the continent mechanism of continent cutaneous diversions by wrapped rectus abdominis muscle flap： a preliminary experimental study

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Chinese Medical Journal 2009年第9期122卷 1087-1091页

作者： ZHANG Xin-ru XU Yue-min FENG Chao YU jian-jun song Lu-jie FEI Xiao-fang Department of Urology Shanghai Jiaotong University AffiliatedShanghai 6th Hospital Shanghai 200023 China

Background Continent cutaneous diversion （CCD） has been widely used in almost any lower urinary reconstruction. We have been continually trying to modify this procedure because of the high complications rate, especially as they relate to the efferent tube. In this study, we reported a modified procedure with a tapered ileum wrapped by the rectus abdominalis flap （RAMF） and assessed the feasibility of this new technique to achieve urinary continence. Methods A procedure in which two ileal segments were tapered and connected to a U-shaped reservoir was performed in ten dogs. A RAMF with its blood supply was wrapped around one of the tapered ileum. In control groups, the tapered ileum was brought to the abdominal skin. Urodynamic studies were conducted In the 1st, 3rd and 6th months post-operatively. The data of maximum inner pressure （MIP） and functional pressure length （FPL） in every group at each phase were recorded. Retrograde radiograms of the efferent limbs were performed before sacrifice. Results MIP in the study group was significantly higher than that in the control group at each phase （P 〈0.05）. However no significant differences in MIP or FPL were found in the study group between an empty and full reservoir. In the control group, MIP increased （P 〈0.05） and FPL decreased significantly （P 〈0.05） compared with an empty and full reservoir. Retrograde radiograms confirmed that efferent limbs were positioned straigh beneath the abdominal wall. Histological examination of the study group demonstrated a layer of striated muscle around the outside surface of the ileum. Conclusion The continent mechanism of tapered ileum can be enhanced by extra support from wrapped RAMF.

关键词： urinary diversions continent urinary reservoir abdomen rectus muscles

Is it necessary to stent renal artery stenosis patients before cardiopulmonary bypass procedures？

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Chinese Medical Journal 2011年第10期124卷 1453-1457页

作者： ZHENG Bin YAN Hong-bing LIU Rui-fang CHENG Shu-juan WANG jian ZHAO Han-jun song Li Department of Cardiology Beijing Anzhen Hospital Capital Medical University Beijing 100029 China

Background Acute kidney injury （AKI） is associated with poor prognosis after cardiopulmonary bypass. The aim of this retrospective study was to investigate whether stent implantation before cardiopulmonary bypass has beneficial effect on development of AKI in renal artery stenosis （RAS） *** In this retrospective study, patients with abnormal baseline serum creatinine （SCr, 〉106 μmol/L） were not included. Included patients （n=69） were divided into two groups. Group 1 included 31 RAS patients receiving no stent implantation before cardiopulmonary bypass. Group 2 included 38 RAS patients having received stent implantation just before cardiopulmonary bypass. To assess AKI after cardiopulmonary bypass, serum urea nitrogen, SCr and creatinine clearance were recorded at baseline, at the end of operation, during the first and second postoperative 24 *** Baseline characteristics were similar between groups. Serum urea nitrogen, SCr, creatinine clearance before and after cardiopulmonary bypass were also similar class groups. Incidence of AKI in group 1 was not significantly different from group 2. In group 1, AKI defined by RIFLE between occurred in 7 （22.6%） patients： 5 （16.1%） with RIFLE-R,2 （6.5%） with RIFLE-I, and no patients with RIFLE-F. In group 2, 10 patients （26.3%） had an episode of AKI during hospitalization： 6 （15.8%） had RIFLE-R, 4 （10.5%） had RIFLE-I, and no patients had *** There are no data suggesting that it is necessary to stent RAS patients with normal SCr before cardiopulmonary bypass. However, it cannot be concluded that RAS is not associated with AKI after cardiopulmonary bypass

关键词： renal insufficiency cardiopulmonary bypass peripheral vascular disease renal artery

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白内障微创超声乳化术48例疗效观察

国际眼科杂志 2012年第12期12卷 2399-2400页

作者：宋建军中国江苏省淮安市清河医院眼科 223001

目的:观察白内障微创超声乳化术在白内障患者治疗中应用的疗效。方法:选取我院2010-03/2011-12以来收治的白内障患者48例为治疗组,进行白内障微创超声乳化手术治疗,选取我院同期48例白内障患者为对照组,进行传统的白内障超声乳化手术治... 详细信息

目的:观察白内障微创超声乳化术在白内障患者治疗中应用的疗效。方法:选取我院2010-03/2011-12以来收治的白内障患者48例为治疗组,进行白内障微创超声乳化手术治疗,选取我院同期48例白内障患者为对照组,进行传统的白内障超声乳化手术治疗。结果:治疗组患者总有效率显著高于对照组,差异有统计学意义(P<0.05)。结论:白内障微创超声乳化术疗效显著,值得推广。

关键词：白内障微创超声乳化术疗效

Association Rule Mining and Its Application

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The Journal of China Universities of Posts and Telecommunications 2001年第4期8卷 13-17页

作者： DUAN Yun feng, LI jian wei, song jun de, SHU Hua ying (Beijng University of Posts and Telecommunications, Beijing 100876, P.R. China) Beijng University of Posts and Telecommunications Beijing 100876 P.R. China

Several algorithms in data mining technique have been studied recently, among which association is one of the most important techniques. In this paper, we introduce theory of association rule in data mining, and analyze the characteristics of postal EMS service. We create a data warehouse model for EMS services and give the procedure of applying association rule mining based on it. In the end, we give an example of the whole mining procedure. This EMS Data warehouse model and association rule mining technique have been applied in a practical Postal CRM System.

关键词： association rule mining data mining data warehouse data mart fact table frequency item set EMS post

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习得性乐观生成的心理机制与作用机理探索

商业经济与管理 2017年第6期 37-47页

作者：王鉴忠宋君卿辽宁大学商学院辽宁沈阳110136 辽宁大学经济学院辽宁沈阳110136

人们越来越富有,为什么却未能越来越快乐?企业员工普遍乐观水平较低,严重影响工作绩效和组织效能。习得性乐观作为人的一种心理资本,是组织行为学研究的核心课题之一。习得性乐观形成的关键在于个体能否做到凡事正面思维。正面思维主要... 详细信息

人们越来越富有,为什么却未能越来越快乐?企业员工普遍乐观水平较低,严重影响工作绩效和组织效能。习得性乐观作为人的一种心理资本,是组织行为学研究的核心课题之一。习得性乐观形成的关键在于个体能否做到凡事正面思维。正面思维主要表现在"语言模式、注意的内容、理性性质和思维风格"四个方面,并由此构成了习得性乐观生成的四种心理机制,即"成长式框架积极语言模式、选择性注意正面信息、理性信念、乐观解释风格"。未来的研究应将习得性乐观正面思维作为重要的调节变量开展系列实证研究,以丰富和完善现有的组织行为学理论。

关键词：习得性乐观心理机制正面思维成长式框架积极语言模式选择性注意正面信息理性信念乐观解释风格

Prevention of hepatitis B virus reinfection after orthotopic liver transplantation

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Hepatobiliary & Pancreatic Diseases International 2004年第3期3卷 345-348页

作者： Zheng-Xin Wang, Guo-Shan Ding, Hong Fu, jian-jun Zhang, Xiao-song Chen,Wen-Yuan Guo, Xiao-Min Shi and Zhi-Ren Fu Liver Transplantation Group of Transplantation Cen-ter , Changzheng Hospital, Second Military University, Shanghai 200003,China Liver Transplantation Group of Transplantation Center Changzheng Hospital Second Military University Shanghai 200003 China.

BACKGROUND: Hepatitis B virus reinfection is an impor-tant problem after liver transplantation. The aim of thisstudy was to discuss the prevention of hepatitis B virus rein-fection following orthotopic liver ***: Sixty-eight cases of chronic fulminant hepatitisB, end-stage liver cirrhosis, and liver carcinoma complicat-ed with HBV cirrhosis were given anti-viral drugs beforeand after transplantation to prevent hepatitis B virus rein-fection. Lamivudine was administered in 2 patients, lami-vudine + hepatitis B immunoglobulin ( HBIG ) in 63, andadefovir + HBIG in 3. The measurement of serum HBV,HBV DNA, liver biopsy immunohistochemistry and clini-cal study were ***: In 1 of the 2 patients who developed reinfectionafter lamivudine administration, serum HBsAg, HBeAb,HBcAb, HBV DNA were positive and liver biopsy immu-nohistochemistry showed HBsAg phenotype. In 2 of 63 pa-tients who developed reinfection after use of lamivudine +HBIG, serum HBsAg, HBeAb, HBcAb were positive andliver biopsy immunohistochemistry showed HBsAg pheno-type. Serum HBV DNA was positive in one of *** patients developed no reinfection with HBV after useof ***: Orthotopic liver transplantation is effectivein the treatment of HBV-infected diseases. Lamivudine +HBIG or adefovir + HBIG could effectively prevent hepatitisB virus reinfection.

关键词： hepatitis B hepatitis B immunoglobulin prophylaxis liver transplantation lamivudine reinfection