检索结果-南通市图书馆

Evolutionary mechanism and frequency response of graphite electrode at extreme temperatures

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2024年第8期17卷 7283-7289页

作者： Shanpeng Pei zhiyong zhang Xiuli zhang Yan Liu Xiang Han Linshan Luo Pengfei Su Chaofei Lan Wei Huang Ziqi zhang Ming-Sheng Wang Songyan Chen Department of Physics Xiamen UniversityXiamen 361005China Shandong Electric Power Engineering Consulting Institute Corporation Jinan 250031China State Key Lab of Physical Chemistry of Solid Surfaces College of MaterialsXiamen UniversityXiamen 361005China School of Semiconductor Science and Technology South China Normal UniversityFoshan 528225China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China National Key Laboratory of Integrated Circuits and Microsystems Chongqing 400000China

The battery management system is employed to monitor the external temperature of the lithium-ion battery in order to detect any potential ***,this outside–in detection method often suffers from a lag and is therefore unable to accurately predict the battery’s real-time ***,an inside–out frequency response approach is used to accurately monitor the battery’s state at various temperatures in real-time and correlate it with the solid electrolyte interphase(SEI)evolution of the graphite *** SEI evolution at temperatures of−15,25,60,and 90℃exhibits certain regular characteristics with temperature *** a temperature of−15℃,the Li^(+)-solvent interaction of lithium-ion slowed down,resulting in a significant reduction in *** 25℃,a LiF-rich inorganic SEI was identified as forming,which facilitated lithium-ion ***,high temperatures would induce decomposition of lithium hexafluorophosphate(LiPF_(6))and lithium-ion *** the extreme temperature of 90℃,the SEI would be organic-rich,and Li_(x)P_(y)F_(z),a decomposition product of lithium salts,was further oxidized to Li_(x)PO_(y)F_(z),which led to a surge in the charge-transfer resistance at SEI(R_(sei))and a reduction in Coulombic efficiency(CE).This changing relationship can be recorded in real time from the inside out by electrochemical impedance spectroscopy(EIS)*** provides a new theoretical basis for the structural evolution of lithium-ion batteries and the regular characterization of EIS.

关键词： graphite electrode solid electrolyte interphase(SEI)film extreme temperatures frequency response evolutionary mechanism

Harnessing cytokine-induced killer cells to accelerate diabetic wound healing:an approach to regulating post-traumatic inflammation

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Regenerative Biomaterials 2024年第2期3卷 88-99页

作者： Yixi Yang Cheng zhang Yuan Jiang Yijun He iawei Cai Lin Liang Zhaohuan Chen Sicheng Pan Chu Hua Keke Wu Le Wang zhiyong zhang Translational Research Centre of Regenerative Medicine and 3D Printing of Guangzhou Medical University Guangdong Province Engineering Research Center for Biomedical EngineeringState Key Laboratory of Respiratory DiseaseDepartment of Orthopaedic SurgeryMedical Technology and Related Equipment Research for Spinal Injury TreatmentCity Key LaboratoryThe Third Affliated Hospital of Guangzhou Medical UniversitySchool of Biomedical EngineeringGuangzhou MedicalUniversityGuangzhouGuangdong510150P.R.China Department of Osteoarthropathy and Sports Medicine Panyu Central HospitalGuangzhou 511400P.R.China

Impaired immunohomeostasis in diabetic wounds prolongs infiammation and cytokine dysfunction,thus,delaying or pre-venting wound-surface *** clinical studies have been conducted on cytokine-induced killer(CIK)cells recently,as they can be easily proliferated using a straightforward,inex-pensive ***,the function of CIK cells in regulat-ing inflammatory environments has been drawing attention for clinical *** the current investigation,we discovered the regenerative capacity of these cells in the chal-lenging environment of wounds that heal poorly due to *** demonstrated that the intravenous injection of CIK cells can re-establish a proregenerative inflammatory *** *** accelerateskin healing in diabetic *** results indicated that CIK cell treatment affects macrophage polarization and restores the function regenerative cells under hyperglycemic *** novel cellular therapy offers a promising intervention for clinical applic tions through specific inflammatory regulation functions.

关键词： macrophage diabetic wound post-traumatic inflammation cytokine-induced killer cells vascularization

Chemical constituents,pharmacological activities and quality evaluation methods of genus Hippocampus:A comprehensive review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Herbal Medicines 2024年第3期16卷 344-357页

作者： zhiyong zhang Xiaoyang zhang Xi Wang Xuting Guo Xinhao Yan Zheng Li Wenlong Li College of Pharmaceutical Engineering of Traditional Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China State Key Laboratory of Component-based Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjin 301617China Haihe Laboratory of Modern Chinese Medicine Tianjin 301617China

The genus Hippocampus is a multi-origin animal species with high medicinal and healthcare *** 57 species of Hippocampus spread worldwide,of which about 14 species can be used as medicine,showing anti-oxidation,anti-inflammation,anti-depressant,anti-hypertension,anti-prostatic hyperplasia,antivirus,anti-apoptotic,antifatigue,and so *** those pharmacological effects are mainly related to their active ingredients,including amino acids,abundant proteins(peptides and oligopeptides),fatty acids,nucleosides,steroids,and other small molecular *** main means of authentication of Hippocampus species are morphological identification,microscopic identification,thin layer chromatography method,fingerprint method and genomics *** review will provide useful insight for exploration,further study and precise medication of Hippocampus in the future.

关键词： chemical constituents Hippocampus pharmacological activities quality evaluation

Numerical Study of Flow Features Around Submerged Circular and Square Piles at Flat and Scoured Beds Using OpenFOAM

在线全文

学校读者我要写书评

暂无评论

Journal of Ocean University of China 2024年第4期23卷 897-914页

作者： WANG Chaolin WU Guoxiang WANG Dianhe DU Shengtao zhang zhiyong JIN Heng ZHU David Z. LIANG Bingchen Donghai Academy School of Civil&Environmental Engineering and Geography ScienceNingbo UniversityNingbo 315211China Key Laboratory of Estuary and Coast of Zhejiang Province and Zhejiang Institute of Hydraulics and EstuaryHangzhou 310020China Shandong Provincial Key Laboratory of Ocean Engineering and College of EngineeringOcean University of ChinaQingdao 266100China Shandong Water Conservancy Vocational College Rizhao 276826China School of Mechanical and Energy Engineering Ningbotech UniversityNingbo 315211China

Elucidating the flow features around piles in local scouring processes is crucial for studies of local scouring mechanisms and scour depth *** study details the flow turbulence characteristics of two submerged piles that are determined by solving the Navier-Stokes equations with the improved delayed detached eddy simulation *** model is verified by comparing experimental and numerical results for hydrodynamic parameters with the literature for both square-crossing piles(SCPs)and circular-crossing piles(CCPs).Original topographies of flat and scoured beds(i.e.,the initial and equilibrium scouring stages)are based on experimental results obtained by the authors in the present *** and CCP flow features in the scouring process are *** results indicate that during the scouring process,the time-averaged drag coefficient and root mean square(rms)of the lift coefficient increase linearly in the CCP test,while the rms of the lift coefficient in the SCP test decreases ***,the minimum pressure coefficient is always located in the upstream corners in the SCP case but moves from 72.5°to 79.5°when the scour hole is completely developed in the CCP *** flow behind the pile,which is generated by separated boundary layers above the top face of the pile,can reach the sand bed and turn the separated shear layers into patches of small vortices in the near-wake ***,the high shear stress zones are mainly at the scour edges under scoured-bed conditions.

关键词： flat bed scoured bed local scour OpenFOAM bed shear stress

Cu nanowire array with designed interphases enabling high performance Si anode toward flexible lithium-ion battery

在线全文

学校读者我要写书评

暂无评论

Nano Research 2024年第3期17卷 1516-1524页

作者： Pengfei Su Ziqi zhang Linshan Luo zhiyong zhang Chaofei Lan Yahui Li Shaowen Xu Shanpeng Pei Guangyang Lin Cheng Li Xiang Han Wei Huang Songyan Chen Fujian Provincial Key Laboratory of Semiconductors and Applications Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient DevicesDepartment of PhysicsXiamen UniversityXiamen 361005China College of Materials Science and Engineering Nanjing Forestry UniversityNanjing 210037China Science and Technology on Analog Integrated Circuit Laboratory Chongqing 400060China Shandong Electric Power Engineering Consulting Institute Co. Ltd.Jinan 250013China

To meet the growing demand for wearable smart electronic devices,the development of flexible lithium-ion batteries(LIBs)is *** is an ideal candidate for the anode material of flexible lithium-ion batteries due to its high specific capacity,low working potential,and earth *** largest challenge in developing a flexible silicon anode is how to maintain structural integrity and ensure stable electrochemical reactions during external *** this work,we propose a novel design for fabricating core–shell electrodes based on a copper nanowire(CuNW)array core and magnetron sputtered Si/C *** nanowire array structure has characteristics of bending under longitudinal stress and twisting under transverse stress,which helps to maintain the mechanical stability of the structure during electrode bending and *** low-temperature annealing generates a small amount of Cu3Si alloy,which enhances the connection strength between Si and the conductive network and solves the poor conductivity problem of Si,which is known as a semiconductor *** unique configuration design of CuNW@Si@C-400℃ leads to stable long cycle performance of 1109 mAh∙g^(-1) after 1000 cycles and excellent rate performance of 500 mAh∙g^(-1) at a current density of 10 A∙g^(-1).Furthermore,the CuNW@Si@C-400℃||LiFePO_(4)(LFP)full battery demonstrates excellent flexibility,with a capacity retention of more than 96%after 100 *** study provides a promising strategy for the development of flexible lithium-ion batteries.

关键词： flexible lithium-ion battery silicon anode magnetron sputtering core–shell electrode Cu nanowire array

抗战时期的戏剧奖助机制与生态——以洪深、赵清阁的多封新见书信等档案文献为线索

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

戏剧艺术 2024年第3期 96-116,153页

作者：张智勇淮北师范大学文学院

新发现的洪深、赵清阁在抗战期间与文艺奖助金管理委员会、国民政府教育部的往来书信等档案材料,呈现了战时戏剧奖助机制的生态面貌。戏剧及其演出带来的巨大宣传和教育价值使得国民政府在抗战期间对此种文艺体裁进行了专门性的奖励救... 详细信息

新发现的洪深、赵清阁在抗战期间与文艺奖助金管理委员会、国民政府教育部的往来书信等档案材料,呈现了战时戏剧奖助机制的生态面貌。戏剧及其演出带来的巨大宣传和教育价值使得国民政府在抗战期间对此种文艺体裁进行了专门性的奖励救助投入,包括相关的奖助机制、活动、机构和资金。这使得大量戏剧从业人士尤其是剧作家们受益其中。但是一方面,这些政府主导的戏剧奖助体系治标不治本,并不能改变剧作家们因为战争及其带来的恶性通货膨胀导致的贫病交加的生存和创作环境;另一方面,不同剧作家们由个性、习惯所形成的不同受助心理也直接影响了其各自的受奖受助生态乃至命运,洪深和赵清阁正是其中的两个典型个案。

关键词：抗战戏剧奖助作家救济洪深赵清阁档案

Coordinated Mining Procedures of Open Pit Mines Based on River Management

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

Asian Agricultural Research 2024年第5期16卷 11-14,19页

作者： Baoyu CAO zhiyong zhang Bo WANG Ruirong DONG Hongjian WANG Huolinhe South Surface Mine of Inner Mongolia Power Investment Energy Co. Ltd.Tongliao 029200China CCTEG Shenyang Engineering Company Shenyang 110015China

This paper primarily concerns the effective coordination of the procedures and methods employed in open pit mining operations under the background of river *** central objective of this study is to identify a viable approach for ensuring rational and efficient development of open pit mineral resources while simultaneously protecting and restoring the ecological environment of the *** approach should facilitate the realization of a harmonious symbiosis between mining and river *** intricate mutual influence relationship between river management and open pit mining is first analyzed in depth,which provides a solid foundation for the subsequent coordination strategy *** light of the aforementioned considerations,a set of coordination procedures for open pit mining based on river management conditions is *** procedures emphasize the integration of river protection into the overall layout of mining at the planning *** implementation of scientific mining schemes,accompanied by rigorous control of the scope and depth of mining operations,has proven to be an effective means of reducing the impact of mining activities on river *** approach has also facilitated the achievement of a balance and coordination between mining and river management.

关键词： River management Open pit mine Mining procedure Coordinated mining

跨境金融衍生品交易所得税问题探析--基于税收协定机制的思考

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

国际税收 2024年第8期 9-17页

作者：张智勇北京大学法学院

本文基于金融衍生品的主要类型和特点,探讨跨境金融衍生品交易所得定性、来源认定和税收管辖权分配等问题。不同于传统贷款或股权交易,金融衍生品交易所得难以被定性为股息或利息,使现行税收协定关于股息、利息等所得的规则无法适用于... 详细信息

本文基于金融衍生品的主要类型和特点,探讨跨境金融衍生品交易所得定性、来源认定和税收管辖权分配等问题。不同于传统贷款或股权交易,金融衍生品交易所得难以被定性为股息或利息,使现行税收协定关于股息、利息等所得的规则无法适用于跨境金融衍生品交易所得,来源国将面临税收流失。同时,金融衍生品可为纳税人提供避税机会,而基于主要目的测试的反避税规则存在不确定性。因此,在税收协定或国内法中就金融衍生品交易所得进行专门规定将更有针对性。此外,非居民金融机构通过远程金融衍生品交易从市场国取得大量营业利润时,与适用于支柱一金额A规则的企业在市场国开展经营活动相类似。因此,国际社会可借鉴支柱一金额A规则,将金融机构部分营业利润在市场国之间进行分配。

关键词：金融衍生品跨境交易所得税税收管辖权反避税税收协定

虎杖苷通过抑制TGF-β/Smad信号通路改善动脉粥样硬化大鼠动脉粥样硬化斑块和内皮炎症反应

在线全文

学校读者我要写书评

暂无评论

中国免疫学杂志 2024年第6期40卷 1228-1233页

作者：张志勇田辉武汉市中医医院武汉430014

目的:探讨虎杖苷通过抑制转化生长因子β(TGF-β)/Smad信号通路对动脉粥样硬化(AS)大鼠AS斑块和内皮炎症反应的改善作用。方法:将60只大鼠随机分成空白对照组、模型对照组、虎杖苷低、中、高剂量组和阳性对照组,每组10只。正常对照组大... 详细信息

目的:探讨虎杖苷通过抑制转化生长因子β(TGF-β)/Smad信号通路对动脉粥样硬化(AS)大鼠AS斑块和内皮炎症反应的改善作用。方法:将60只大鼠随机分成空白对照组、模型对照组、虎杖苷低、中、高剂量组和阳性对照组,每组10只。正常对照组大鼠用普通饲料喂养,其余各组大鼠采用高脂饲料喂养与维生素D3腹腔注射联合的方法制备AS大鼠模型。虎杖苷低、中、高剂量组大鼠每天灌胃虎杖苷40、80、160 mg/kg,阳性对照组大鼠每天灌胃辛伐他汀5 mg/kg,模型对照组和空白对照组大鼠每天灌胃等量生理盐水。给药结束后,油红O染色观察大鼠主动脉AS斑块形成情况;全自动生化分析仪检测大鼠三酰甘油(TG)、总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)水平;酶联免疫吸附法检测大鼠血清中肿瘤坏死因子(TNF)-α、IL-6、IL-8、C反应蛋白(CRP)、单核细胞趋化蛋白1(MCP-1)、同型半胱氨酸(Hcy)、细胞间黏附分子1(ICAM-1)、内皮素-1(ET-1)含量;蛋白免疫印迹法检测大鼠TGF-β1、Smad2/3、p-Smad2/3蛋白表达水平。结果:与空白对照组相比,模型对照组大鼠主动脉内壁出现大量AS斑块,血清中TG、TC、LDL-C水平及TNF-α、IL-6、IL-8、CRP、MCP-1、Hcy、ICAM、ET-1含量明显升高,HDL-C水平明显降低,主动脉组织中TGF-β1蛋白表达、p-Smad2/3/Smad2/3显著升高(P0.05),其余指标均比虎杖苷高剂量组更低(P<0.05)。结论:虎杖苷通过调节血脂、降低细胞炎症因子的表达,从而减少AS斑块的形成,改善AS大鼠体内的炎症反应,其机制与抑制TGF-β/Smad信号通路激活有关。

关键词：虎杖苷 TGF-β/Smad信号通路动脉粥样硬化动脉粥样硬化斑块内皮炎症