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International Journal of Minerals,Metallurgy and Materials 2019年第3期26卷 319-328页

作者： Xiao-qing Ni De-cheng Kong Ying Wen Liang Zhang Wen-heng Wu bei-bei he Lin Lu De-xiang Zhu Shanghai Engineering Research Center of 3D Printing Materials Shanghai Research Institute of Materials Corrosion and Protection Center Key Laboratory for Corrosion and Protection (MOE) University of Science and Technology Beijing

The corrosion behavior and mechanical properties of 316 L stainless steel(SS) fabricated via selective laser melting(SLM) were clarified by potentiodynamic polarization measurements, immersion tests, and tensile experiments. The microstructural anisotropy of SLMed 316 L SS was also investigated by electron back-scattered diffraction and transmission electron microscopy. The grain sizes of the SLMed 316 L SS in the XOZ plane were smaller than those of the SLMed 316 L SS in the XOY plane, and a greater number of low-angle boundaries were present in the XOY plane, resulting in lower elongation for the XOY plane than for the XOZ plane. The SLMed 316 L was expected to exhibit higher strength but lower ductility than the wrought 316 L, which was attributed to the high density of dislocations. The pitting potentials of the SLMed 316 L samples were universally higher than those of the wrought sample in chloride solutions because of the annihilation of MnS or(Ca,Al)-oxides during the rapid solidification. However, the molten pool boundaries preferentially dissolved in aggressive solutions and the damage of the SLMed 316 L in FeCl3 solution was more serious after long-term service, indicating poor durability.

关键词： selective laser melting mechanical property corrosion resistance 316L stainless steel anisotropy molten pool boundary

Binder-induced ultrafast PF_(6)^(-)-intercalation toward a high-voltage,high-power and long-cycling zinc-graphite dual-ion battery

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Rare Metals 2024年第10期43卷 5017-5029页

作者： Gen Li Xiao-Jun Shi Ting Dong Qian Yu Zhi-Fei Mao Xin-Hua Liu Rui Wang bei-bei he Jun Jin Yan-Sheng Gong Huan-Wen Wang Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Material Science and ChemistryChina University of GeosciencesWuhan 430074China College of Resources and Environment South-Central Minzu UniversityWuhan430074China School of Transportation Science and Engineering Beihang UniversityBeijing 100191China

Metallic zinc is an ideal anode material owing to its high theoretical capacity(819 mAh·g^(-1)),ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries(ZIBs).However,the practical application of current ZIBs is significantly restricted by irregular dendrite growth of zinc anode and the low working voltage(usuallyhe ethyl methyl carbonate(EMC)*** the corrosion interaction of Li^(+)ions,Zn^(2+)can be easily dissolved from Zn anode into the electrolyte to enable dendrite-free Zn^(2+)plating/stripping at the ***,an aqueous carboxymethyl cellulose(CMC)binder is employed to generate a robust cathode electrolyte interface(CEI)layer on the graphite cathode,which renders ultrafast PF_(6)^(-)-de-/intercalation into *** resultant Zn-graphite DIB operates stably at a high cut off voltage of 3.2 V,corresponding to an average output voltage of 2.2 *** 9000cycles at 5C,the high capacity retention of 95.9% can be achieved with~100% Coulomb *** on the mass of cathode material,our Zn-graphite battery exhibits ultrafast rate capability(60 C,a discharge time of 44 s)and high energy/power densities(208 Wh·kg^(-1)at 214 W·kg^(-1);142 Wh·kg^(-1)at 8692 W·kg^(-1)),which holds great promise for large-scale energy storage.

关键词： Zn-ion batteries PF_(6)^(-)-de-/intercalation Graphite Binder High-voltage

Mechanically flexible V_(3)S_(4)@carbon composite fiber as a high-capacity and fast-charging anode for sodium-ion capacitors

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Rare Metals 2023年第8期42卷 2633-2642页

作者： Zhi-Fei Mao Xiao-Jun Shi Tao-Qiu Zhang Peng-Ju Liang Rui Wang Jun Jin bei-bei he Yan-Sheng Gong Qiang Wang Xi-Li Tong Huan-Wen Wang Faculty of Material Science and Chemistry China University of GeosciencesWuhan 430074China Engineering Laboratory of Chemical Resources Utilization in South Xinjiang of XPCC Department of Chemistry and Chemical EngineeringCollege of LifeTarim UniversityAlar 843300China State Key Laboratory of Coal Conversion Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

Hybrid Na-ion capacitors(NICs)have received considerable interests owing to their low-cost,high-safety,and rapidly charging energy-storage *** NICs are composed of a capacitor-type cathode and a battery-type *** major challenge for NICs is to search for suitable electrode materials to overcome the sluggish diffusion of Na^(+)in the ***,ultrafine vanadium sulfide is encapsulated in carbon fiber(V_(3)S_(4)@CNF)as a self-supported electrode by electrospinning and in situ *** carbon cladding and one-dimensional(ID)nanofiber network-like structure could alleviate the volume expansion of V_(3)S_(4)during Na^(+)de-/intercalation ***,the V_(3)S_(4)@CNF anode exhibited a pseudocapacitive sodium storage in terms of large Na^(+)-storage capacity(476 mAh·g^(-1)at 0.1A·g^(-1)),high-rate capability(290 mAh·g^(-1)at 20.0 A·g^(-1))and excellent cycling stability(95%capacity retention for1500 cycles at 2.0 A·g^(-1))in Na *** employing V_(3)S_(4)@CNF as the anode and the activated carbon(AC)cathode,the as-assembled NICs could deliver a high energy density of 110 Wh·kg^(-1)at a power density of200 W·kg^(-1).Even at a high power of 10,000 W·kg^(-1),the specific energy is still up to 42 Wh·kg^(-1).

关键词： Electrospinning Na-ion capacitor(NIC) Nanofibers Vanadium sulfide Fast-charging

Energy Transfer in the Light-Harvesting Complexes of Purple Bacteria

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Communications in Theoretical Physics 2018年第8期69卷 225-229页

作者： bei-bei he Meng-Meng Ming Chang-Yong Liu Guo-Dong Wang Li Qin You-Wei Li College of Science Northwest A＆F UniversityYangling 712100China

In this paper, we use a nonlinear decohering quantum model to study the initial step of photosynthesis which is an ultrafast transfer process of absorption the sunlight by light-harvesting complexes and electronic excitation transfer to the reaction center(RC). In this decohering model, the Hamiltonian of the system commutes with the systemenvironment interaction. We take B850 ring of light-harvesting complex II(LH-II) in purple bacteria as an example to calculate the efficiency of the energy transfer as a function of time. We find that the environmental noise can make the LH-II have stable energy transfer efficiency over a long time. This is to say that the environmental noise which is the decohering source has advantage of the energy transfer in the process of photosynthesis.

关键词： photosynthesis light-harvesting complexes energy transfer efficiency

Structural stability and ion migration of Li_(2)MnO_(3) cathode material under high pressures

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Chinese Physics B 2023年第12期32卷 449-453页

作者：谢泽仁周思思贺贝贝王欢文公衍生金俊张祥功汪锐 Faculty of Materials Science and Chemistry China University of GeosciencesWuhan 430074China Wuhan Institute of Marine Electric Propulsion Wuhan 430064China

Some special fields,such as deep-sea exploration,require batteries and their electrode materials to withstand extremely high *** the cathode material has the highest energy density,Li-excess Mn-based materials are also likely to be utilized in such an ***,the effect of pressure on the crystal structure and migration barrier of this kind of material is still not clear at ***,in this study,we investigate the properties of the matrix material of Li-excess Mn-based material,Li_(2)MnO_(3),under high *** equation of state,bulk modulus,and steady-state volume of Li_(2)MnO_(3) are predicted by the method of first principles *** calculations of unit cells at different pressures reveal that the cell parameters suffer anisotropic compression under high *** compression,Li-O bond is more easily compressed than Mn-O *** results from the climbing image nudged elastic band(CINEB)method show that the energy barrier of Li^(+)migration in the lithium layer increases with pressure *** study can provide useful information for utilizing Li-excess Mn-based materials under high pressure.

关键词： lithium-ion battery Li_(2)MnO_(3) high pressure DFT computation

按绩效支付方式对门诊服务机构绩效的效果评价

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中国卫生政策研究 2017年第9期10卷 8-21页

作者：袁蓓蓓何莉孟庆跃贾莉英北京大学中国卫生发展研究中心北京100191

门诊服务机构提供的服务是病人首先接触和最基本的医疗保健,门诊服务对居民健康状况有最直接的影响。支付方式是购买者最常用的引导服务提供者行为的激励机制。本研究通过Cochrane系统综述的方法,检索、筛选、评价和整合原始研究,并最... 详细信息

门诊服务机构提供的服务是病人首先接触和最基本的医疗保健,门诊服务对居民健康状况有最直接的影响。支付方式是购买者最常用的引导服务提供者行为的激励机制。本研究通过Cochrane系统综述的方法,检索、筛选、评价和整合原始研究,并最终纳入19项研究。研究发现,现有支付方式结合按绩效支付的干预方式可以略促进某些检查或治疗项目的开展(调整后RR值中位数=1.095,range 1.01 to 1.17);但可能无法改变病人卫生服务利用行为(调整后RR值中位数=1.01,range 0.96 to 1.15)和健康状况的改善(调整后RR=1.01,range 0.98 to 1.04)。按绩效支付设计较复杂,每个细节设计都可能蕴含不同的激励效果,因此,决策者在设计经费支付方式或者实行按绩效支付改革但效果不明显时,应分析支付方式各个模块的设计,以寻找干预点。

关键词：按绩效支付支付方式门诊门诊服务机构

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猪胃提取物中抑制胃溃疡活性成分初步研究

食品科技 2016年第11期41卷 108-111页

作者：赵洪王云龙瞿贝贝何执中绵阳师范学院绵阳621000 中国药科大学南京210009

目的:观察猪胃提取物对水浸法胃溃疡小鼠模型的治疗作用及初步分析研究猪胃提取物抑制胃溃疡的活性成分。方法:用超滤离心管对猪胃提取物进行初步分离后,将得到的分离组分、猪胃提取物及盐酸雷尼替丁给小鼠灌胃,并观察对实验性胃溃疡模... 详细信息

目的:观察猪胃提取物对水浸法胃溃疡小鼠模型的治疗作用及初步分析研究猪胃提取物抑制胃溃疡的活性成分。方法:用超滤离心管对猪胃提取物进行初步分离后,将得到的分离组分、猪胃提取物及盐酸雷尼替丁给小鼠灌胃,并观察对实验性胃溃疡模型的影响以初步确定活性组分的范围。利用考马斯亮蓝测定蛋白质含量计算超滤离心后蛋白质回收率。结论:初步得出猪胃提取物最有效成分的相对分子质量在3万以下,用超滤的方法有较好的回收率。

关键词：猪胃提取物胃溃疡抑制作用超滤离心

高质量发展是全面建设社会主义现代化国家的首要任务

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新疆师范大学学报（哲学社会科学版） 2025年第1期46卷 43-49,F0002页

作者：金碚中国社会科学院工业经济研究所北京100006

党的二十大报告提出以中国式现代化全面推进中华民族伟大复兴,形成对中国式现代化的系统性认知,强调高质量发展是全面建设社会主义现代化国家的首要任务。改革开放以来,在中国共产党的领导下,我国逐步摆脱观念桎梏和教条约束,坚持一切... 详细信息

党的二十大报告提出以中国式现代化全面推进中华民族伟大复兴,形成对中国式现代化的系统性认知,强调高质量发展是全面建设社会主义现代化国家的首要任务。改革开放以来,在中国共产党的领导下,我国逐步摆脱观念桎梏和教条约束,坚持一切从国情出发,创造了人类文明新形态。经济全球化势不可挡,世界必然是和而不同的全球格局,不同文明形态、不同经济体制、不同行为方式共存形成人类命运共同体。这是中国式现代化的底层逻辑,体现了中国经济高质量发展的世界意义。从中国式现代化视角透视高质量发展的深刻叙事,有助于深刻诠释中国式现代化的核心意涵。

关键词：高质量发展中国式现代化体制机制供需相宜因地制宜新质生产力

高原地区不同海拔下大鼠SAP相关肾损伤变化的研究

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世界华人消化杂志 2017年第30期25卷 2702-2707页

作者：贺贝贝郭亚民朱海宏杨效白云燕青海省人民医院普外科青海省西宁市810007

目的研究高原地区不同海拔下大鼠重症急性胰腺炎(severe acute pancreatitis,SAP)相关肾损伤的变化情况.方法在不同海拔不同时间点通过胰腺被膜下推注4.5%牛磺胆酸钠建立大鼠SAP模型,对照组(F组)开腹后轻触胰腺建立对照组模型.分别于相... 详细信息

目的研究高原地区不同海拔下大鼠重症急性胰腺炎(severe acute pancreatitis,SAP)相关肾损伤的变化情况.方法在不同海拔不同时间点通过胰腺被膜下推注4.5%牛磺胆酸钠建立大鼠SAP模型,对照组(F组)开腹后轻触胰腺建立对照组模型.分别于相应时间点采大鼠腹主动脉血、胰腺组织,检测血淀粉酶(amylase,AMY)、尿素氮(blood urea nitrogen,BUN)、肌酐(creatinine,Cr)值,显微镜下观察胰腺组织he染色切片,给胰腺组织评分,进行统计学分析.结果血清AMY、Cr、BUN值的变化:各SAP组血清AMY、Cr、BUN值在同一海拔不同时间点比较,差异有统计学意义(P<0.05),各SAP组与F组血清AMY、Cr、BUN值比较,差异有统计学意义(P<0.05),SAP各组血清AMY、Cr、BUN值在不同海拔下同一时间点比较,差异有统计学意义(P<0.05),不同海拔的F组血清AMY、Cr、BUN值比较,差异有统计学意义(P<0.05);胰腺组织病理评分:各SAP组胰腺组织评分在同一海拔不同时间相比较,差异有统计学意义(P<0.05),随着海拔的逐渐升高,组织病理评分在相同时间点比较,差异有统计学意义(P<0.05).结论高原低氧环境加重胰腺炎合并肾损伤疾病的发生发展过程.

关键词：高原不同海拔重症急性胰腺炎肾损伤

Binder-induced ultrafast ■-intercalation toward a high-voltage,high-power and long-cycling zinc–graphite dual-ion battery

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Rare Metals 2024年第10期 5017-5029页

作者： Gen Li Xiao-Jun Shi Ting Dong Qian Yu Zhi-Fei Mao Xin-Hua Liu Rui Wang bei-bei he Jun Jin Yan-Sheng Gong Huan-Wen Wang Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Material Science and ChemistryChina University of Geosciences College of Resources and Environment South-Central Minzu University School of Transportation Science and Engineering Beihang University

Metallic zinc is an ideal anode material owing to its high theoretical capacity (819 mAh·g-1),ecofriendliness,low cost and high safety,which have driven fast development of Zn-ion batteries （ZIBs）.However,the practical application of current ZIBs is significantly restricted by irregular dendrite growth of zinc anode and the low working voltage （usuallyhe ethyl methyl carbonate （EMC） *** the corrosion interaction of Li+ions,Zn2+can be easily dissolved from Zn anode into the electrolyte to enable dendrite-free Zn2+plating/stripping at the ***,an aqueous carboxymethyl cellulose （CMC） binder is employed to generate a robust cathode electrolyte interface （CEI） layer on the graphite cathode,which renders ultrafast PF6--de-/intercalation into *** resultant Zn–graphite DIB operates stably at a high cut off voltage of 3.2 V,corresponding to an average output voltage of 2.2 *** 9000cycles at 5C,the high capacity retention of 95.9% can be achieved with～100%Coulomb *** on the mass of cathode material,our Zn–graphite battery exhibits ultrafast rate capability （60 C,a discharge time of 44 s） and high energy/power densities (208 Wh·kg-1at 214 W·kg-1;142 Wh·kg-1at 8692 W·kg-1),which holds great promise for large-scale energy storage.

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