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Engineering Pt heterogeneous catalysts for accelerated liquid–solid redox conversion in Li-S batteries

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Journal of Energy Chemistry 2022年第6期31卷 490-496,I0014页

作者： Qinhua gu Yujie Qi Wuxing hua Tongxin Shang Junnan Chen Luozhen Jiang Lina Li Ming Lu Yixiao Zhang xi Liu Ying Wan Bingsen Zhang Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016LiaoningChina School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016LiaoningChina Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of Education The Joint Laboratory of MXene MaterialsKey Laboratory of Functional Materials Physics and Chemistry of the Ministry of EducationJilin Normal UniversityChangchun 130103JilinChina Nanoyang Group State Key Laboratory of Chemical Engineering School of Chemical Engineering and TechnologyTianjin UniversityTianjin 300072China Key Laboratory of Resource Chemistry of Ministry of Education Shanghai Key Laboratory of Rare Earth Functional Materialsand Department of ChemistryShanghai Normal UniversityShanghai 200234China School of Chemistry and Chemical Engineering In-situ Center for Physical ScienceShanghai Jiao Tong UniversityShanghai 200240China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China

The shuttle effect caused by soluble lithium polysulfides (LiPSs) deteriorates multiphase transformation reaction kinetics of sulfur species,and gives rise to an unserviceable lithium-sulfur (Li-S) ***,as a process optimization approach,offers an option to eliminate the intrinsic ***,exploring and understanding the role of catalysts on electrode reaction remains critical bottlenecks,particularly as they are prone to continuous evolution under complex dynamic ***,platinum nanoparticles loaded on MXene nanosheets,as sulfur host,and the action of catalysts on the reaction process are investigated via ex-situ monitors upon solid–liquid–solid chemical transformation of sulfur *** traces confirm that the high performance originates from electron transfer between catalysts and LiPSs,which lowers the nucleation barrier from liquid LiPSs to solid Li_(2)S/Li_(2)S_(2).Further,the accelerated liquid–solid conversion can alleviate the accumulation of LiPSs,and boost the reaction kinetics in Li-S *** findings corroborate the electronic modulation between catalysts and LiPSs,which is a generalizable strategy to optimize energy conversion efficiency of Li-S batteries.

关键词： Lithium-sulfur batteries MXene Catalysis Shuttle effect Pt

Reference values of carotid intima-media thickness and arterial stiffness in Chinese adults based on ultrasound radio frequency signal:A nationwide,multicenter study

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Chinese Medical Journal 2024年第15期137卷 1802-1810页

作者： Changyang xing xiujing xie Yu Wu Lei Xu xiangping guan Fan Li xiaojun Zhan Hengli Yang Jinsong Li Qi Zhou Yuming Mu Qing Zhou Yunchuan Ding Yingli Wang xiangzhu Wang Yu Zheng xiaofeng Sun hua Li Chaoxue Zhang Cheng Zhao Shaodong Qiu guozhen Yan Hong Yang Yinjuan Mao Weiwei Zhan Chunyan Ma Ying gu Wu Chen Mingxing xie Tianan Jiang Lijun Yuan Department of Ultrasound Medicine Tangdu HospitalAir Force Medical UniversityXi’anShaanxi 710038China Department of Ultrasound Medicine The First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiang 310003China Department of Ultrasound Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Ultrasound Xi’an Hospital of Traditional Chinese MedicineXi’anShaanxi 710021China Ultrasound Medical Diagnosis Center Shaanxi Provincial People’s HospitalXi’anShaanxi 710068China Department of Ultrasound Hospital of Northwestern Polytechnical UniversityXi’anShaanxi 710072China Department of Ultrasound Xi’an No.1 HospitalThe First Affiliated Hospital of Northwest UniversityXi’anShaanxi 710002China Department of Ultrasound Diagnosis The Second Affiliated HospitalXi’an Medical CollegeXi’anShaanxi 710038China Department of Ultrasound Xi’an Gem Flower ChangQing HospitalXi’anShaanxi 710201China Department of Ultrasound The Second Affiliated Hospital of Xi’an Jiaotong UniversityChinaXi’anShaanxi 710004China Department of Echocardiography First Affiliated Hospital of Xinjiang Medical UniversityUrumqiXinjiang 830011China Department of Ultrasound Renmin Hospital of Wuhan UniversityWuhanHubei 430060China Department of Ultrasound Yan’an HospitalThe Affiliated Hospital of Kunming Medical UniversityKunmingYunnan 650051China Department of Ultrasound Yan’an University Xianyang HospitalXianyangShaanxi 712000China Department of Function Examination Beijing University of Chinese Medicine Third Affiliated HospitalBeijing 100029China Department of Ultrasound Xi’an Central HospitalXi’anShaanxi 710004China Cadre’s Wards Ultrasound Department Diagnostic Ultrasound CenterFirst Hospital of Jilin UniversityChangchunJilin 130000China Department of Echocardiography Affiliated Hospital of Traditional Chinese Medicine of Xinjiang Medical UniversityUrumqiXinjiang 830002China Department of Ultrasound First Affiliated

Background:Carotid intima-media thickness(IMT)and diameter,stiffness,and wave reflections,are independent and important clinical biomarkers and risk predictors for cardiovascular *** purpose of the present study was to establish nationwide reference values of carotid properties for healthy Chinese adults and to explore potential clinical ***:A total of 3053 healthy Han Chinese adults(1922 women)aged 18-79 years were enrolled at 28 collaborating tertiary centers throughout China between April 2021 and July *** real-time tracking of common carotid artery walls was achieved by the radio frequency(RF)ultrasound *** IMT,diameter,compliance coefficient,βstiffness,local pulse wave velocity(PWV),local systolic blood pressure,augmented pressure(AP),and augmentation index(AIx)were then automatically measured and *** were stratified by age groups and *** relationships between age and carotid property parameters were analyzed by Jonckheere-Terpstra test and simple linear *** major clinical determinants of carotid properties were identified by Pearson’s correlation,multiple linear regression,and analyses of ***:All the parameters of carotid properties demonstrated significantly age-related *** showed thinner IMT,smaller carotid diameter,larger AP,and AIx than ***βstiffness and PWV were significantly higher in men than women before forties,but the differences reversed after *** increase rate of carotid IMT(5.5µm/year in women and 5.8µm/year in men)and diameter(0.03 mm/year in both men and women)were similar between men and *** the stiffness and wave reflections,women showed significantly larger age-related variations than men as demonstrated by steeper regression slopes(all P for age by sex interaction<0.05).The blood pressures,body mass index(BMI),and triglyceride levels were identified as major clinical determinants of carotid properties with adjustment of age and ***

关键词： Intima-media thickness Arterial stiffness Reference values Ultrasound radio frequency signal Wave reflections

Ultra-light MXene aerogel/wood-derived porous carbon composites with wall-like"mortar/brick"structures for electromagnetic interference shielding

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Science Bulletin 2020年第8期65卷 616-622,M0003页

作者： Chaobo Liang hua Qiu Ping Song Xuetao Shi Jie Kong Junwei gu Shaanxi Key Laboratory of Macromolecular Science and Technology School of Chemistry and Chemical Engineering.Northwestern Polytechnical UniversityXi'an 710072China

Renewable porous biochar and 2 D MXene have attracted significant attention in high-end electromagnetic interference(EMI)shielding fields,due to unique orderly structures and excellent electrical conductivity(r)*** this work,the wood-derived porous carbon(WPC)skeleton from natural wood was performed as a *** excellent conductive and ultra-light 3D MXene aerogel was then constructed to prepare the MXene aerogel/WPC composites,based on highly ordered honeycomb cells inner WPC as a *** carbonization temperature is more conducive to the graphitization degree of natural *** aerogel/WPC composites achieve the optimal EMI SE value of up to 71.3 d B at density as low as 0.197 g/cm^*** wall-like"mortar-brick"structures(WPC skeleton as"mortar"and MXene aerogel as"brick")not only effectively solve the unstable structure problem of MXene aerogel networks,but also greatly prolong the transmission paths of the electromagnetic waves and dissipate the incident electromagnetic waves in the form of heat and electric energy,thereby exhibiting the superior EMI shielding *** addition,MXene aerogel/WPC composites also exhibit good anisotropic compressive strength,excellent thermal insulation and flame retardant *** ultra-light,green and efficient multi-functional bio-carbon-based composites have great application potential in the high-end EMI shielding fields of aerospace and national defence industry,etc.

关键词： Electromagnetic interference(EMI) shielding Wood-derived porous carbon 2D MXene Wall-like"mortar-brick"structures

Prognostic significance of regional lymphadenectomy in T1b gallbladder cancer:Results from 24 hospitals in China

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World Journal of Gastrointestinal Surgery 2021年第2期13卷 176-186页

作者： Tai Ren Yong-Sheng Li Xue-Yi Dang Yang Li Zi-Yu Shao Run-Fa Bao Yi-Jun Shu Xu-An Wang Wen-guang Wu xiang-Song Wu Mao-Lan Li Hong Cao Kun-hua Wang Hong-Yu Cai Chong Jin Hui-Han Jin Bo Yang xiao-Qing Jiang Jian-Feng gu Yun-Fu Cui Zai-Yang Zhang Chun-Fu Zhu Bei Sun Chao-Liu Dai Lin-Hui Zheng Jing-Yu Cao Zhe-Wei Fei Chang-Jun Liu Bing Li Jun Liu Ye-Ben Qian Yi Wang Ya-Wei hua xi Zhang Chang Liu Wan-Yee Lau Ying-Bin Liu Department of General Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Shanghai Key Laboratory of Biliary Tract Disease Research Shanghai 200092China Department of Biliary-Pancreatic Surgery Renji Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200127China State Key Laboratory for Oncogenes and Related Genes Shanghai 200127China Department of General Surgery Shanxi Provincial Cancer HospitalTaiyuan 030013Shanxi ProvinceChina Department of GI Surgery China-Japan Union Hospital of Jilin UniversityChangchun 130033Jilin ProvinceChina Department of Gastrointestinal and Hernia Surgery The First Affiliated Hospital of Kunming Medical UniversityKunming 650031Yunnan ProvinceChina Department of Hepatobiliary Surgery Nantong Tumor HospitalNantong 226361Jiangsu ProvinceChina Department of General Surgery Taizhou Municipal HospitalTaizhou 318000Jiangsu ProvinceChina Department of Hepatobiliary Surgery Wuxi Second People's HospitalWuxi 214002Jiangsu ProvinceChina Department of General Surgery The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325015Zhejiang ProvinceChina Department of Biliary Tract Surgery Second Military Medical UniversitySecondary Military Medical UniversityShanghai 200438China Department of General Surgery Changshu No.1 People’s Hospital Affiliated to Soochow UniversityChangshu 215500Jiangsu ProvinceChina Department of Hepatopancreatobiliary Surgery Second Affiliated Hospital of Harbin Medical UniversityHarbin 150086Heilongjiang ProvinceChina Department of General Surgery Shaoxing Second HospitalShaoxing 312000Zhejiang ProvinceChina Department of HPB Surgery Changzhou No.2 People’s HospitalChangzhou 213003Jiangsu ProvinceChina Department of Pancreatic and Biliary Surgery The First Affiliated Hospital of Harbin Medical UniversityHarbin 150009Heilongjiang ProvinceChina Department of Hepatobiliary Surgery Shengjing Hospital of China Medical UniversityShenyang 1

BACKGROUND Whether regional lymphadenectomy(RL)should be routinely performed in patients with T1b gallbladder cancer(GBC)remains a subject of *** To investigate whether RL can improve the prognosis of patients with T1b *** We studied a multicenter cohort of patients with T1b GBC who underwent surgery between 2008 and 2016 at 24 hospitals in 13 provinces in *** logrank test and Cox proportional hazards model were used to compare the overall survival(OS)of patients who underwent cholecystectomy(Ch)+RL and those who underwent Ch *** investigate whether combined hepatectomy(Hep)improved OS in T1b patients,we studied patients who underwent Ch+RL to compare the OS of patients who underwent combined Hep and patients who did *** Of the 121 patients(aged 61.9±10.1 years),77(63.6%)underwent Ch+RL,and 44(36.4%)underwent Ch ***(9.1%)patients in the Ch+RL group had lymph node *** 5-year OS rate was significantly higher in the Ch+RL group than in the Ch group(76.3%vs 56.8%,P=0.036).Multivariate analysis showed that Ch+RL was significantly associated with improved OS(hazard ratio:0.51;95%confidence interval:0.26-0.99).Among the 77 patients who underwent Ch+RL,no survival improvement was found in patients who underwent combined Hep(5-year OS rate:79.5%for combined Hep and 76.1%for no Hep;P=0.50).CONCLUSION T1b GBC patients who underwent Ch+RL had a better prognosis than those who underwent ***+Ch showed no improvement in prognosis in T1b GBC *** recommended by both the National Comprehensive Cancer Network and Chinese Medical Association guidelines,RL was only performed in 63.6%of T1b GBC *** Ch+RL should be advised in T1b GBC.

关键词： Gallbladder cancer Lymphadenectomy Hepatectomy Staging Prognosis Surgery

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智能变电站网络安全防护应用研究

电力系统保护与控制 2021年第1期49卷 115-124页

作者：俞华穆广祺牛津文原辉姜敏谷永刚国网山西省电力公司电力科学研究院山西太原030000 国网山西省电力公司山西太原030000 许继集团有限公司河南许昌461000 国网陕西省电力公司陕西西安710000

近年来,随着乌克兰电网遭受网络攻击等一系列事件的发生,变电站网络安全面临着一系列新挑战。目前变电站智能设备种类繁多,面临越趋严峻的非法访问、操作越权及数据篡改等内部网络威胁。因此,提出变电站智能设备的多维度网络安全防护机... 详细信息

近年来,随着乌克兰电网遭受网络攻击等一系列事件的发生,变电站网络安全面临着一系列新挑战。目前变电站智能设备种类繁多,面临越趋严峻的非法访问、操作越权及数据篡改等内部网络威胁。因此,提出变电站智能设备的多维度网络安全防护机制,引入多级身份认证、分布式权限验、逆向矩阵等网络加固机制,解决常见的网络攻击问题。在不影响传输效率及性能的基础上确保智能设备网络访问与控制的安全性、可靠性及健壮性。

关键词： PAXOS算法分布式权限验证多级身份认证逆向矩阵网络加固

Chinese Experts Consensus on Biologic Therapy for Psoriasis

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International Journal of Dermatology and Venereology 2020年第2期3卷 76-85页

作者： Chen Ai-Jun Gao xing-hua gu Heng gu Jun Hao Fei Jiang xian Jin Hong-Zhong Kang xiao-Jing Li Cheng-xin Li Yu-Zhen Liu xiao-Ming Shi Yu-Ling Sun Qing Wang Gang Yang Bin Zhang Jun-Ling Zhang xi-Bao Zhang Xue-Jun Zhao Yi Zheng Min Chinese Society of Dermatology China Dermatologist Association Dermatology and Venereology Specialized Committee of Chinese Association of Integrative Medicine Department of Dermatology The First Affiliated Hospital of Chongqing Medical UniversityChongqing 400016China Department of Dermatology The First Hospital of China Medical UniversityShenyangLiaoning 110001China Hospital for Skin Diseases(Institute of Dermatology) Chinese Academy of Medical SciencesNanjingJiangsu 210042China Department of Dermatology Changhai HospitalThe Second Military Medical UniversityShanghai 200002China Department of Dermatology The Third Affiliated Hospital of Chongqing Medical UniversityChongqing 401120China Department of Dermatology West China Hospital of Sichuan UniversityChengduSichuan 610041China Department of Dermatology Peking Union Medical College HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Dermatology People’s Hospital of Xinjiang Uygur Autonomous RegionUrumqiXinjiang 830001China Department of Dermatology The First Medical CenterPLA General HospitalBeijing 100853China Department of Dermatology The Second Hospital of Harbin Medical University HarbinHeilongjiang 150086China Department of Dermatology The University of Hong Kong-Shenzhen HospitalShenzhen 518053China Department of Dermatology Shanghai Tenth People’s HospitalTongji University School of MedicineShanghai 200072China Department of Dermatology Qilu HospitalShandong UniversityJinanShandong 250012China Department of Dermatology Xijing HospitalThe Fourth Military Medical UniversityXi’anShaanxi 710032China Dermatology Hospital of Southern Medical University GuangzhouGuangdong 510091China Department of Dermatology Tianjin Academy of Traditional Chinese Medicine Affiliated HospitalTianjin 300120China Institute of Dermatology Guangzhou Medical UniversityGuangzhouGuangdong 510095China Department of Dermatology Huashan HospitalFudan UniversityShanghai 200040China Department of Dermatology and Venereology Beijing Tsinghua Changgung HospitalSchool of Clinical MedicineTsinghua UniversityBeijing 102218China Department of

Biologic drugs have been increasingly used in the treatment of psoriasis and are especially favorable for severe,recalcitrant,and special-type ***,appropriate,effective,and safe use of biologic drugs has drawn attention from *** this purpose,Chinese experts majoring in psoriasis analyzed domestic and international research data,summarized current clinical experiences,investigated features of Chinese patients with psoriasis,and finally formulated the present consensus,which provides detailed guidances to clinicians in terms of the principles and methods of the application of biologics,the efficacy and safety profile,patient screening and monitoring,main adverse events and corresponding solutions,and precautions for special patient populations.

关键词： psoriasis treatment biologics consensus

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基于微细异相钢液洁净化技术研究进展

工程科学学报 2022年第9期44卷 1538-1547页

作者：王晓峰栗红曹东康伟常桂华邓志银顾超陕西科技大学机电工程学院西安710021 鞍钢集团有限公司鞍山114051 东北大学冶金学院沈阳110089 北京科技大学钢铁冶金新技术国家重点实验室北京100083

高纯净度钢的生产是钢铁企业面临的重大课题,在钢液中获得尺寸可控、弥散分布的气泡是去除细小夹杂物、生产高品质钢的重要手段.微细异相净化钢液技术是一种基于碳酸盐分解反应生产微小气泡与渣滴去除细小夹杂物的技术,近年来该技术的... 详细信息

高纯净度钢的生产是钢铁企业面临的重大课题,在钢液中获得尺寸可控、弥散分布的气泡是去除细小夹杂物、生产高品质钢的重要手段.微细异相净化钢液技术是一种基于碳酸盐分解反应生产微小气泡与渣滴去除细小夹杂物的技术,近年来该技术的研发越来越受到冶金工作者的重视,部分新技术已被开发并趋于成熟.本文从微细异相净化钢水技术原理出发,详细介绍了微细异相净化钢水技术研究的最新进展,归纳总结了微细异相去除细小夹杂物、脱硫、脱磷、渣料迁移、RH快速脱碳及中间包长水口喷粉工艺特点及作用机理,并对其在工程领域应用亟待解决的问题及未来发展方向进行了展望.

关键词：洁净钢夹杂物去除小气泡渣滴脱磷脱硫

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双金属衬里复合管内衬弹塑性失稳有限元分析

塑性工程学报 2023年第2期30卷 177-184页

作者：谷天平练章华王斌史君林陈俊文西南石油大学油气藏地质及开发工程国家重点实验室四川成都610500 西安向阳航天材料股份有限公司陕西西安710025 中国石油工程建设有限公司西南分公司四川成都610041

采用数值模拟的方法建立了含初始缺陷的受限衬管失稳力学模型,重点研究了受限衬管的临界失稳载荷和后屈曲构型之间的相互作用行为,并讨论了临界失稳载荷的缺陷敏感性,最后通过试验验证了仿真结果的计算精度。结果表明,相对于衬管半径1%... 详细信息

采用数值模拟的方法建立了含初始缺陷的受限衬管失稳力学模型,重点研究了受限衬管的临界失稳载荷和后屈曲构型之间的相互作用行为,并讨论了临界失稳载荷的缺陷敏感性,最后通过试验验证了仿真结果的计算精度。结果表明,相对于衬管半径1%幅度的内衬不圆度缺陷会使内衬的临界失稳载荷下降约65%;在相同的初始椭圆度缺陷δ_(0)前提下,随着内衬径厚比的增大,其临界失稳载荷不断减小;复合管内衬临界失稳载荷的有限元计算结果与试验结果的相对误差为1.82%。建立的平面应变有限元力学模型不仅可以准确求解出受限内衬的临界失稳载荷,还能够大量节约试验成本。

关键词：双金属衬里复合管内衬失稳临界失稳载荷有限元

柴油脱硫菌Rhodococcus sp.的分离及其性质考察

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辽宁石油化工大学学报 2005年第1期25卷 23-26页

作者：林军章杨翔华顾锡慧洪新李英辽宁石油化工大学环境工程系辽宁抚顺113001

石油产品中的硫经过燃烧以SOx形式排放到大气中,对环境造成了严重的污染。生物脱硫被认为可以有效补充甚至取代传统的加氢脱硫(HDS)。从土壤中分离纯化得到47株菌又经进一步复筛得到7株有明显脱硫效果的菌,最终选出一株降解二苯并噻吩(D... 详细信息

石油产品中的硫经过燃烧以SOx形式排放到大气中,对环境造成了严重的污染。生物脱硫被认为可以有效补充甚至取代传统的加氢脱硫(HDS)。从土壤中分离纯化得到47株菌又经进一步复筛得到7株有明显脱硫效果的菌,最终选出一株降解二苯并噻吩(DBT)的高效菌,经鉴定为红球菌Rhodococcussp.定名为ZY-75。通过正交实验确定该菌株的最佳发酵条件为:温度为30℃,硫源DBT的质量浓度为94.0mg/L,氮源NH4NO3的质量浓度为2.0g/L,碳源甘油的质量浓度为5g/L,培养时间为4d,pH值为7.0。并且初步考察了该菌株对柴油的脱出率,优化其发酵条件后DBT降解率达68%,该菌株对抚顺石油二厂重油催化裂化柴油和南油催化裂化柴油中硫的脱出率分别达到24.50%和31.19%。

关键词：柴油微生物脱硫二苯并噻吩