检索结果-南通市图书馆

High-temperature oxidation behavior and degradation mechanism of chromium-coated zirconium alloy cladding: a review

在线全文

学校读者我要写书评

暂无评论

Tungsten 2025年第1期7卷 50-70页

作者： Yi Li Bei-Qi wang Xin-Yin Zhang Shi-Jie wang Cong-Yi Li hui-Long Yang Ran-Ran Su Tong Liu School of Mechanical Engineering Shanghai Jiao Tong University College and Graduate School of Arts and Sciences University of Virginia Global Institute of Future Technology Shanghai Jiao Tong University

Accident-tolerant fuels(ATF) have been extensively studied to reduce the production rate and total amount of heat and hydrogen generated from high-temperature steam oxidation during severe ***-coated zirconium alloy cladding has become one of the most promising candidates for ATF because of its excellent corrosion and oxidation *** paper provides a comprehensive overview of the research progress on oxidation behaviors and degradation mechanisms in chromium-coated zirconium alloy cladding under high-temperature *** techniques to strengthen the oxidation resistance are highlighted and ***,challenges and opportunities for various future directions are addressed.

关键词： Accident-tolerant fuel Chromium coating Degradation mechanism High-temperature oxidation behavior Zirconium alloy cladding

MoS2 synaptic transistor with one-step manufacture

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science China(Information Sciences) 2025年第1期68卷 357-365页

作者： Yihao GUO Yang wang Wenjie DENG Yi WU Jingtao LI Kexin LI Yuehui ZHAO Songlin YU Xiaoting wang Yongzhe ZHANG hui YAN Key Laboratory of Optoelectronics Technology of Education Ministry of China Faculty of Information TechnologyBeijing University of Technology Key Laboratory of Advanced Functional Materials Ministry of Education Faculty of Materials and ManufacturingBeijing University of Technology The 11th Research Institute of Electronics Technology Group Corporation

The synaptic transistor,which is a neuromorphic device with brain-like functions,has garnered significant attention due to characteristics such as low energy consumption,high integration,multiple functions,and high computational ***,the current synaptic transistor possesses a complicated structure and involves complex manufacturing steps,which is not conducive to low-cost,large-scale bionic ***,we introduce a simple MoS2synaptic transistor exhibiting robust synaptic *** transistor utilizes magnetron sputtering manufacture to combine the process of device metal electrode deposition and the introduction of defect states,which helps streamline the manufacturing process into a single *** long-term potentiation and long-term depression in photoelectric coordination are initially ***,biological functions,such as double pulse facilitation and the transformation behavior of short-term memory to long-term memory,are thoroughly evaluated,along with learning-forgetting-relearning ***,the device exhibits robust synaptic plasticity until incident light angles down to 30° to imitate the multi-to-one axon-cellular ***,a classical simulation of Pavlov's dog conditioned reflex is demonstrated along with the multiview extraction *** experimental results demonstrate a promising synaptic transistor with a simple structure,manufacturing technique,and excellent *** further indicates the potential for large-scale integration of bionic neuromorphic systems.

关键词： process optimization artificial synaptic device one-stepmanufacture synaptic plasticity bionic simulation

同方期刊数据库

Deciphering the role of mtH2O2 in hepatic ischemia-reperfusion injury mechanisms with low-background super-resolution fluorogenic probe

在线全文

学校读者我要写书评

暂无评论

Science China Chemistry 2025年第1期68卷 297-307页

作者： Bin Fang Limin wang Haoqin Li Jiaxin Zhang Yang Ding Pan Pan Li Bo Peng hua Bai Lin Li Frontiers Science Center for Flexible Electronics Xi'an Institute of Flexible Electronics (IFE) and Xi'an Institute of Biomedical Materials &Engineering Northwestern Polytechnical University Institute of Flexible Electronics (IFE Future Technologies) Xiamen University

Hepatic ischemia-reperfusion injury（HIRI） is characterized by mitochondrial dysfunction and oxidative stress. Monitoring mitochondrial hydrogen peroxide（mtH2O2） levels in real-time through super-resolution imaging is crucial for elucidating its distribution in live cells and its mechanism of action during HIRI. However, low-background fluorogenic probes have been overlooked in the context of super-resolution imaging. In this study, we developed a low-background fluorogenic probe（MitoWG） with the potential for super-resolution morphology-correlated mitochondrial identification to track the fluctuates of mtH2O2in HIRI. Activation of the desirable fluorescence properties of the probe by mtH2O2was confirmed using structural illumination microscopy（SIM）, enabling high-quality mitochondrial imaging with exceptional specificity and *** in mtH2O2levels were successfully observed in both cellular and rat models of HIRI. Furthermore, we associated the decline in mitochondrial redox homeostasis with accelerated mtH2O2production during HIRI, which triggered mitophagy deficiency and led to cell death. In conclusion, Mito-WG possesses excellent photophysical and low-background properties for SIM imaging, making it a promising tool for mtH2O2tracking in HIRI research and clinical diagnosis.

关键词： hepatic ischemia-reperfusion injury low-background mtH2O2-activatable super-resolution imaging fluorogenic probe

尿素共沉淀法制备LiNi_(0.8)Co_(0.2)O_2正极材料及其电化学性能

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

人工晶体学报 2014年第7期43卷 1683-1687页

作者：钟胜奎胡飘刘乐通王慧华苏州大学沙钢钢铁学院苏州215021

采用尿素共沉淀法合成了LiNi0.8Co0.2O2锂离子电池正极材料,研究了烧结温度、锂源摩尔配比对LiNi0.8Co0.2O2晶形结构、形貌以及电化学性能的影响。结果表明,尿素共沉淀法合成LiNi0.8Co0.2O2样品最佳工艺条件是800℃温度条件下烧结10 h... 详细信息

采用尿素共沉淀法合成了LiNi0.8Co0.2O2锂离子电池正极材料,研究了烧结温度、锂源摩尔配比对LiNi0.8Co0.2O2晶形结构、形貌以及电化学性能的影响。结果表明,尿素共沉淀法合成LiNi0.8Co0.2O2样品最佳工艺条件是800℃温度条件下烧结10 h、锂过量5%合成的样品具有较好的电化学性能,以0.2 C倍率充放电时首次充放电容量分别为206.4 mAh·g-1和191.6 mAh·g-1,循环30次后容量为178.2 mAh·g-1。

关键词：锂离子电池 LiNi0 8Co0 2O2正极材料尿素共沉淀法电化学性能

在线全文

学校读者我要写书评

暂无评论

某体育馆集散大厅排烟系统设计及评估

消防科学与技术 2015年第3期34卷 333-336页

作者：王华会姜明理连云港市消防支队江苏连云港222000 公安部天津消防研究所天津300381

以某现代体育馆消防设计为例,针对集散大厅疏散距离过长的问题提出消防设计方案。采用FDS模拟烟气流动情况,计算人员必需疏散时间,定量分析体育馆排烟系统设计方案是否达到既定的消防安全目标。结果表明,消防安全设计方案可行。

关键词：建筑防火体育馆排烟系统数值模拟

在线全文

学校读者我要写书评

暂无评论

匈牙利职业教育发展演变及改革特色

职业技术教育 2014年第25期35卷 79-83页

作者：王会花张雪梅上海外国语大学上海200083

匈牙利职业教育历史悠久,随着其社会经济政治体制的变迁不断发展完善。其中等职业教育分为职业中学和职业学校的两个并行的培养轨道,职业教育与普通教育相互渗透。近年来,匈牙利职业教育改革致力于建立中等职业教育与高等教育及高等职... 详细信息

匈牙利职业教育历史悠久,随着其社会经济政治体制的变迁不断发展完善。其中等职业教育分为职业中学和职业学校的两个并行的培养轨道,职业教育与普通教育相互渗透。近年来,匈牙利职业教育改革致力于建立中等职业教育与高等教育及高等职业教育灵活衔接、互相融通的框架结构,具体措施有通过构建以能力培养为导向的模块矩阵构成的"国家职业资格"认证体系、加强与工商会之间的联系、完善高等职业教育与培训等。

关键词：匈牙利职业教育发展演变改革特色

Universal design of three-dimensional porous graphene-iron based promotors for kinetically rationalized lithium-sulfur chemistry

在线全文

学校读者我要写书评

暂无评论

Journal of Energy Chemistry 2025年第1期100卷 192-200页

作者： hua Gao Yunfeng Zhang Menglei wang Ruoxuan Yang Shuai Feng Xuan Cao Yaping Zhang Zhongyuan Lu Yingze Song State Key Laboratory of Environment-Friendly Energy Materials School of Materials and Chemistry Southwest University of Science and Technology School of Material Science and Engineering Henan University of Technology College of Chemistry and Chemical Engineering Taishan University

Lithium-sulfur （Li-S） batteries are widely deemed to be one of the most potential candidates for future secondary batteries because of their remarkable energy ***,notorious polysulfide shuttling and retarded sulfur reaction kinetics pose significant obstacles to the further application of Li-S *** rationally designed highly active electrocatalysts can facilitate polysulfide conversion,the universal and scalable synthesis strategies need to be ***,a universal synthetic strategy to construct a series of three-dimensional （3D） porous graphene-iron （3DGr-Fe） based electrocatalysts involving 3DGr-FeP,3DGr-Fe3C,and 3DGr-Fe3Se4is exploited for manipulating the Li-S redox *** has been observed that the implementation of a 3D porous Gr architecture leads to the well-designed conductive networks,while the uniformly dispersed iron nanoparticles introduce an abundance of active sites,fostering the lithium polysulfide conversion,thereby bolstering the overall electrochemical *** Li-S battery with the 3DGr-Fe based electrocatalyst exhibits remarkable capacity retention of 94.8%upon 100 times at 0.2 ***,the soft-packaged Li-S pouch cell based on such a 3DGr-Fe electrocatalyst delivers superior capacity of 1060.71 mA h g-1and guarantees for the continuous 30 min work of fan *** investigation gives comprehensive insights into the design,synthesis,and mechanism of 3DGr-Fe based electrocatalysts with high activity toward efficient and durable Li-S batteries.

关键词： Redox reactions

一部全新解读《聊斋》的力著——评郑春元先生新著《〈聊斋志异〉探赏》

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

辽东学院学报（社会科学版） 2017年第3期19卷 136-140,F0003页

作者：王立花卉大连大学语言文学研究所辽宁大连116022

《〈聊斋志异〉探赏》是一部全新解读《聊斋》的力著,是一部高水准的学术佳作。该书有六个特点:融研究、评论、鉴赏于一体,特色鲜明;拓宽了《聊斋》的思想内容方面的研究领域,揭示出《聊斋》新的思想内涵;对作品深度挖掘,新见迭现;层层... 详细信息

《〈聊斋志异〉探赏》是一部全新解读《聊斋》的力著,是一部高水准的学术佳作。该书有六个特点:融研究、评论、鉴赏于一体,特色鲜明;拓宽了《聊斋》的思想内容方面的研究领域,揭示出《聊斋》新的思想内涵;对作品深度挖掘,新见迭现;层层深入透辟的艺术分析,深刻揭示《聊斋》艺术美的奥秘;持论公允,拨正偏误;创新评赏形式,学术性和趣味性完美结合。

关键词：《聊斋志异》探赏创新学术性趣味性可读性

在线全文

学校读者我要写书评

暂无评论

基于输入特性分析的光电跟踪内模控制设计

火力与指挥控制 2009年第3期34卷 139-141,144页

作者：王辉华刘文化石章松海军工程大学湖北武汉430033 海军装备研究院北京100073

内模控制是一种基于对象数学模型进行控制器设计的新型控制策略,其设计思路是将对象模型与实际对象相并联,控制器逼近模型的动态逆。根据内模控制原理及光电跟踪系统参考输入及扰动输入特性,设计了一种新型位置控制器。并分析了IMC跟踪... 详细信息

内模控制是一种基于对象数学模型进行控制器设计的新型控制策略,其设计思路是将对象模型与实际对象相并联,控制器逼近模型的动态逆。根据内模控制原理及光电跟踪系统参考输入及扰动输入特性,设计了一种新型位置控制器。并分析了IMC跟踪控制器的零稳态偏差及抗干扰性能。从仿真结果看,与常规PID控制相比,内模控制器参数调整简单、跟踪性能良好。特别是在针对目标突然机动的情况下,IMC控制器具有良好的稳态误差重构能力,即能迅速收敛到稳态误差。根据仿真结果数据统计,系统跟踪误差的均方根可减小到0.5 mrad,表明该控制器能够提高系统的跟踪精度,为高性能光电跟踪系统提供了一种新的控制策略。

关键词：光电跟踪系统内模控制扰动参考输入