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Tribological behavior of magnetron sputtering CrMoN/MoS_2 composite coatings

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Acta Metallurgica Sinica(English Letters) 2012年第6期25卷 461-468页

作者： Yuelan DI Zhihai CAI Ping ZHANG Zhen YANG Qi li wei shen Department of Equipment Remanufacturing Engineering Academy of Armored Forces Engineering Beijing100072 China

CrMoN composite coatings were deposited on the surface of the stainless steel by magnetron sputtering, then were treated by low temperature ion sulfuration. FESEM equipped with EDX was adopted to analyze the morphologies and compositions of the surface, cross-section and worn scar of the sulfuration layer. The valence states of the film surface were detected by XPS. The nano-hardness and nano-modulus of the layer were measured by a nano tester. The results of the friction and wear show that the CrMoN/MoS2 composite coating is a kind of ideal solid lubrication layer and possess an excellent antifriction and wear-resistance.

关键词： CrMoN/MoS2 Magnetron sputtering Low temperature ionsulfurizing Solid lubrication

Advanced primary peritoneal carcinoma:clinicopathological and prognostic factor analyses

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2008年第6期9卷 435-440页

作者： Chao ZHANG Xiao-ping li Heng CUI Dan-hua shen li-hui wei Gynecological Oncology Center Peking University People＇s Hospital Beijing 100044 China

Objective: To investigate the factors favoring a positive prognosis for advanced primary peritoneal carcinoma (PPC). Methods: Twenty-four cases meeting the criteria for PPC were analyzed retrospectively for the clinicopathologic profiles. Im- munohistochemistry was used to determine the expressions of p53, Top2α, Ki-67 and Her-2/neu. Then all these clinicopa- thological factors and molecular markers were correlated with the prognosis. Results: There were 15 cases of primary peritoneal serous papillary carcinoma (PPSPC), 6 cases of mixed epithelial carcinoma (MEC) and 3 cases of malignant mixed Mullerian tumor (MMMT). All patients underwent cytoreductive surgery with optimal debulking achieved in 3 cases. Among those re- ceiving first-line chemotherapy, 13 patients received the TP regimen (paclitaxel-cisplatin or carboplatin) and 7 patients received the PAC regimen (cisplatin-doxorubicin-cyclophosphamide). The median overall survival of all patients was 42 months, while the breakdown for survival time for patients with PPSPC, MMT and MEC was 44, 13 and 19 months, respectively. The expressions of p53, Top2α and Ki-67 were all demonstrated in 11 cases respectively. None showed the expression of Her-2/neu. There were significant differences in the median survival between patients with PPSPC and those with MMMT (44 months vs 13 months, P<0.05), also between patients receiving TP combination and those receiving the PAC regimen (75 months vs 28 months, P<0.05). Another significant difference in the median progression-free survival (PFS) was identified between patients with positive p53 immunostaining and those with negative p53 immunostaining (15 months vs 47 months, P<0.05), whereas age, menopausal status, residual tumor size and the other molecular factors did not significantly impact survival. Conclusion: Patients with PPC should be treated with a comprehensive management plan including appropriate cytoreductive surgery and responsive chemotherapy. Overestimating an opt

关键词： Primary peritoneal carcinoma (PPC) Cytoreductive surgery Chemotherapy Immunohistochemistry Prognosis

Forecasting conductivities of liBOB-EC/DEC electrolytes by the mass triangle model

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International Journal of Minerals,Metallurgy and Materials 2009年第4期16卷 463-467页

作者： Jia-yuan Huang Bi-tao Yu Fu-shen li wei-hua Qiu School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 China

Conductivities of lithium bis（oxalato）borate （liBOB）-ethyl carbonate （EC）/diethyl carbonaten （DEC） electrolytes at 25℃ and 50℃ were studied. The electrolyte component with the highest conductivity at each temperature was obtained through changing the concentration of liBOB and the ratio of EC/DEC. The mass triangle model was applied to calculate the conductivity of li- BOB-EC/DEC ternary system at 25℃ and 50℃. The results show that the calculated and experimental results have reached a good agreement. Therefore, it is expected that the experimental work can be vastly reduced by introducing the mass triangle model.

关键词： lithium bis(oxalato)borate (liBOB) electrolyte conductivity mass triangle model

基于局域重加权的智能配电网多源分布式协调优化算法

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电力系统自动化 2016年第21期40卷 146-153页

作者：李静沈忱韦巍戴文战浙江工商大学信息与电子工程学院浙江省杭州市310018 浙江大学电气工程学院浙江省杭州市310027

为了实现大量间歇式新能源的充分消纳,提出了一种含高密度分布式电源的智能配电网有功和无功资源的区域分布式协调优化算法。该方法首先建立多时间段线性锥最优潮流模型,其次利用辅助变量增广Lagrangian乘子法分裂节点以实现各区域子系... 详细信息

为了实现大量间歇式新能源的充分消纳,提出了一种含高密度分布式电源的智能配电网有功和无功资源的区域分布式协调优化算法。该方法首先建立多时间段线性锥最优潮流模型,其次利用辅助变量增广Lagrangian乘子法分裂节点以实现各区域子系统潮流的空间解耦,最后提出了基于局域重加权Lagrangian的分布式优化算法,实施全网有功和无功资源的协调优化。算法上,各区域子系统无需全局协调可独立并行迭代优化,通过邻域子系统间少量的部分信息交互达到全网优化。该算法降低了通信复杂度,最大限度地保留了各子系统的独立性。算例验证结果表明,所提算法计算效率较高且收敛特性良好。

关键词：分布式电源智能配电网分布式优化最优潮流线性锥规划

Selection of Trypsin Inhibitors in Phage Peptide library Using Model Pepeide Mimicking the Active Site of Trypsin

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Chemical Research in Chinese Universities 1996年第1期12卷 111-113页

作者： QI Jie FANG Rui LU Zhi-bin ZHou Hui li wei and shen Jia-cong(Department of Molecular Biology, Jilin University, Changchun 130023, China)(Department of Chemistry, Jilin University) JIliN UNIV DEPT BIOL MOLECCHANGCHUN 130023PEOPLES R CHINA

PHYSICAL PROPERTIES AND ELASTIC MODULUS OF DUT-1 MODEL ICE

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Journal of Hydrodynamics 2003年第5期15卷 98-102页

作者： li Zhi jun, li Guang wei, shen Zhao wei, Wang Yong xue, Qu Yue xia State Key Laboratory of Offshore and Coastal Engineering, Dalian University of Technology, Dalian 116024, China State Key Laboratory of Offshore and Coastal Engineering Dalian University of Technology Dalian 116024 China

A new synthetic model ice, DUT-1 model ice, was developed. This paperdescribes the procedures for making the model ice and details its ingredients, grain sizedistribution, structure, density and elastic modulus. Based on its measured density, DUT-1 model icehas steady mechanical properties and is stable for sufficiently long period to perform ice modelingtests. The relationships of the measured elastic modulus with water amount and density were workedout.

关键词： synthetic model ice ingredients size gradation structure density

Potential role and therapeutic implications of glutathione peroxidase 4 in the treatment of Alzheimer's disease

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Neural Regeneration Research 2025年第3期20卷 613-631页

作者： Yanxin shen Guimei Zhang Chunxiao wei Panpan Zhao Yongchun Wang Mingxi li li Sun Department of Neurology and Neuroscience Center The First Hospital of Jilin UniversityJilin UniversityChangchunJilin ProvinceChina Cognitive Impairment Center Department of NeurologyThe First Hospital of Jilin UniversityJilin UniversityChangchunJilin ProvinceChina

Alzheimer's disease is an age-related neurodegenerative disorder with a complex and incompletely understood pathogenesis. Despite extensive research, a cure for Alzheimer's disease has not yet been found. Oxidative stress mediates excessive oxidative responses, and its involvement in Alzheimer's disease pathogenesis as a primary or secondary pathological event is widely accepted. As a member of the selenium-containing antioxidant enzyme family, glutathione peroxidase 4 reduces esterified phospholipid hydroperoxides to maintain cellular redox homeostasis. With the discovery of ferroptosis, the central role of glutathione peroxidase 4 in anti-lipid peroxidation in several diseases, including Alzheimer's disease, has received widespread attention. Increasing evidence suggests that glutathione peroxidase 4 expression is inhibited in the Alzheimer's disease brain, resulting in oxidative stress, inflammation, ferroptosis, and apoptosis, which are closely associated with pathological damage in Alzheimer's disease. Several therapeutic approaches, such as small molecule drugs, natural plant products, and non-pharmacological treatments, ameliorate pathological damage and cognitive function in Alzheimer's disease by promoting glutathione peroxidase 4 expression and enhancing glutathione peroxidase 4 activity. Therefore, glutathione peroxidase 4 upregulation may be a promising strategy for the treatment of Alzheimer's disease. This review provides an overview of the gene structure, biological functions, and regulatory mechanisms of glutathione peroxidase 4, a discussion on the important role of glutathione peroxidase 4 in pathological events closely related to Alzheimer's disease, and a summary of the advances in small-molecule drugs, natural plant products, and non-pharmacological therapies targeting glutathione peroxidase 4 for the treatment of Alzheimer's disease. Most prior studies on this subject used animal models, and relevant clinical studies are lacking. Future clinica

关键词： apoptosis ferroptosis inflammation lipid peroxidation natural plant products neurodegenerative disorder neuroprotection oxidative stress small-molecule drugs

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面向文本描述的CPS资源能力知识图谱构建

软件学报 2023年第5期34卷 2268-2285页

作者：李正洁沈立炜李弋彭鑫复旦大学计算机科学与技术学院上海200438 上海市数据科学重点实验室(复旦大学) 上海200438

信息物理融合系统(cyber-physical system,CPS)在社会生活中发挥越来越广泛的作用.CPS资源的按需编排建立在CPS资源的软件定义基础上,软件接口的定义则依赖对CPS资源能力的充分描述.目前,CPS领域内缺少一个能规范表示资源及其能力的知... 详细信息

信息物理融合系统(cyber-physical system,CPS)在社会生活中发挥越来越广泛的作用.CPS资源的按需编排建立在CPS资源的软件定义基础上,软件接口的定义则依赖对CPS资源能力的充分描述.目前,CPS领域内缺少一个能规范表示资源及其能力的知识库和构建该知识库的有效方法.面向CPS资源的文本描述,提出构建CPS资源能力知识图谱并设计一种自底向上的自动构建方法.给定资源,所提方法先从其代码和文档中提取资源能力的文本描述信息,并基于预定义的表示模式生成规范化表示的能力短语.然后,基于动宾结构的关键成分对能力短语进行划分、聚合与抽象,生成不同类型资源的能力层次化抽象描述.最后,构建资源能力知识图谱.面向Home Assistant平台,构建了包含32个资源类别、957个资源能力的知识图谱.图谱构建实验从不同维度对比分析了手工构建和所提方法自动构建的结果.实验表明,所提方法为CPS资源能力知识图谱的自动化构建提供可行途径,有助于减少人工构建工作量,补充CPS领域内资源服务与能力的描述,并提高图谱的知识完备性.

关键词：信息物理融合系统(CPS) 能力知识图谱物联网(IoT)

A Rapid Adaptation Approach for Dynamic Air‑Writing Recognition Using Wearable Wristbands with Self‑Supervised Contrastive Learning

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Nano-Micro Letters 2025年第2期17卷 417-431页

作者： Yunjian Guo Kunpeng li wei Yue Nam‑Young Kim Yang li Guozhen shen Jong‑Chul Lee Department of Electronic Convergence Engineering Kwangwoon UniversitySeoul 01897South Korea Radio Frequency Integrated Circuit(RFIC)Bio Centre Kwangwoon UniversitySeoul 01897South Korea Department of Electronic Engineering Kwangwoon UniversitySeoul 01897South Korea School of Microelectronics Shandong UniversityJinan 250101People’s Republic of China State Key Laboratory of Integrated Chips and Systems Fudan UniversityShanghai 200433People’s Republic of China School of Integrated Circuits and Electronics Beijing Institute of TechnologyBeijing 100081People’s Republic of China

Wearable wristband systems leverage deep learning to revolutionize hand gesture recognition in daily *** existing approaches that often focus on static gestures and require extensive labeled data,the proposed wearable wristband with selfsupervised contrastive learning excels at dynamic motion tracking and adapts rapidly across multiple *** features a four-channel sensing array composed of an ionic hydrogel with hierarchical microcone structures and ultrathin flexible electrodes,resulting in high-sensitivity capacitance *** wireless transmission from a Wi-Fi module,the proposed algorithm learns latent features from the unlabeled signals of random wrist ***,only few-shot labeled data are sufficient for fine-tuning the model,enabling rapid adaptation to various *** system achieves a high accuracy of 94.9%in different scenarios,including the prediction of eight-direction commands,and air-writing of all numbers and *** proposed method facilitates smooth transitions between multiple tasks without the need for modifying the structure or undergoing extensive task-specific *** utility has been further extended to enhance human–machine interaction over digital platforms,such as game controls,calculators,and three-language login systems,offering users a natural and intuitive way of communication.

关键词： Wearable wristband Self-supervised contrastive learning Dynamic gesture Air-writing Human-machine interaction