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(Ce_(20)Nd_(80))_(31)Fe_(bal)B_1M磁体腐蚀产物多样性的研究

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粉末冶金工业 2017年第5期27卷 36-40页

作者：吴亚萍朱明刚石晓宁宋利伟潘伟钢铁研究总院功能材料研究所北京100081

对双主相粉末烧结工艺制备的(Ce_(20)Nd_(80))_(31)Fe_(bal)B_1M磁体进行高压加速腐蚀实验,观察其腐蚀形貌并进行EDS能谱分析。结果表明:腐蚀24 h后,腐蚀产物呈绒球状和圆球状。绒球状腐蚀产物主要是稀土相氧化物,随着腐蚀时间的增加,... 详细信息

对双主相粉末烧结工艺制备的(Ce_(20)Nd_(80))_(31)Fe_(bal)B_1M磁体进行高压加速腐蚀实验,观察其腐蚀形貌并进行EDS能谱分析。结果表明:腐蚀24 h后,腐蚀产物呈绒球状和圆球状。绒球状腐蚀产物主要是稀土相氧化物,随着腐蚀时间的增加,绒球状腐蚀产物演变为团絮状;圆球状腐蚀产物主要是铁的氧化物,随着腐蚀时间的延长,圆球状腐蚀产物部分脱落,没有脱落的被腐蚀颗粒缔结到基体上,一定程度上可以阻碍腐蚀的进一步进行。

关键词：双主相烧结钕铁硼磁体腐蚀形貌

康复护理方案在脑卒中偏瘫恢复期患者中的应用

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护理实践与研究 2017年第1期14卷 39-41页

作者：崔巍巍潘爱红鲍文程驰安徽省合肥市第一人民集团医院滨湖医院康复科合肥市230000

目的:探讨基于功能评估的匹配康复护理方案在脑卒中偏瘫恢复期患者中的应用效果。方法:选择2016年1~7月收治于我院的脑卒中偏瘫接受康复护理的患者116例,随机等分为试验组和对照组,对照组接受常规偏瘫康复护理,试验组给予康复护理方案干... 详细信息

目的:探讨基于功能评估的匹配康复护理方案在脑卒中偏瘫恢复期患者中的应用效果。方法:选择2016年1~7月收治于我院的脑卒中偏瘫接受康复护理的患者116例,随机等分为试验组和对照组,对照组接受常规偏瘫康复护理,试验组给予康复护理方案干预,干预1个月后观察比较两组患者偏瘫程度、日常生活自理能力和生活质量评分情况。结果:试验组干预后的Brunnstrom分级评分、改良Barthel指数评分、Spiter生活质量评分均显著高于对照组(P<0.05)。结论:采用基于功能评估的匹配康复护理方案对脑卒中偏瘫恢复期患者进行康复管理,可改善该类患者的偏瘫程度,提高其日常生活自理能力,促进其生活质量的提高。

关键词：功能评估脑卒中偏瘫恢复期

Activin A receptor type 1C single nucleotide polymorphisms associated with esophageal squamous cell carcinoma risk in Chinese population

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World Journal of Gastrointestinal Oncology 2025年第1期17卷 39-51页

作者： Si-Yun Lin Hou Huang Jin-Jie Yu Feng Su Tian Jiang Shao-Yuan Zhang Lu Lv Tao Long Hui-Wen pan Jun-Qing Qi Qiang Zhou wei-Feng Tang Guo-Wen Ding Li-Ming Wang Li-Jie Tan Jun Yin Department of Thoracic Surgery Zhongshan Hospital Affiliated to Fudan UniversityShanghai 200032China Shanghai Key Laboratory of Clinical Geriatric Medicine Huadong Hospital Affiliated to Fudan UniversityShanghai 200040China Department of Cardiothoracic Surgery The Affiliated People's Hospital of Jiangsu UniversityZhenjiang 212002Jiangsu ProvinceChina Department of Thoracic Surgery Sichuan Cancer Hospital&InstituteChengdu 610042Sichuan ProvinceChina Department of Cardiothoracic Surgery Nanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing 210000Jiangsu ProvinceChina Department of Respiratory and Critical Care Medicine Shanghai Xuhui Central HospitalShanghai 200032China

BACKGROUND Transforming growth factor-β(TGF-β)superfamily plays an important role in tumor progression and *** A receptor type 1C(ACVR1C)is a TGF-βtype I receptor that is involved in tumorigenesis through binding to dif-ferent *** To evaluate the correlation between single nucleotide polymorphisms(SNPs)of ACVR1C and susceptibility to esophageal squamous cell carcinoma(ESCC)in Chinese Han *** In this hospital-based cohort study,1043 ESCC patients and 1143 healthy controls were *** SNPs(rs4664229,rs4556933,rs77886248,rs77263459,rs6734630)of ACVR1C were assessed by the ligation detection reaction ***-weinberg equilibrium test,genetic model analysis,stratified analysis,linkage disequi-librium test,and haplotype analysis were *** Participants carrying ACVR1C rs4556933 GA mutant had significantly decreased risk of ESCC,and those with rs77886248 TA mutant were related with higher risk,especially in older male *** the haplotype analysis,ACVR1C Trs4664229Ars4556933Trs77886248Crs77263459Ars6734630 increased risk of ESCC,while Trs4664229Grs4556933Trs77886248Crs77263459Ars6734630 was associated with lower susceptibility to *** ACVR1C rs4556933 and rs77886248 SNPs were associated with the susceptibility to ESCC,which could provide a potential target for early diagnosis and treatment of ESCC in Chinese Han population.

关键词： Activin A receptor type 1C Single nucleotide polymorphisms Esophageal squamous cell carcinoma Genetic susceptibility Hospital-based cohort study

Coupled chemical effects of carbon dioxide and hydrogen additions on premixed lean dimethyl ether flames

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Science China(Technological Sciences) 2017年第1期60卷 102-115页

作者： pan wei LIU Dong School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing 210094 China

Kinetic analysis of coupled effects of CO2 and H2 additions on laminar lean premixed dimethyl ether flames is performed at atmospheric pressure. The coupled effects of H2/CO2 additions on major species, intermediate stable species and radicals are discussed and analyzed in detail. The dilution, thermal and chemical effects of H2 and CO2 are separated and identified. The results show that H2 addition can slightly mitigate the CO2 chemical effects on decreasing the temperatures, H radical concen- tration, acetylene mole fraction and formaldehyde concentration. After CO2 is added, the H2 chemical effects on increasing the temperatures are enhanced. DME oxidation is promoted by the H2 chemical effects, which is further strengthened by the CO2 addition. Moreover, CO2 addition can reduce the H2 chemical effects on increasing the H radical mole fraction, but strengthen the H2 chemical effects on increasing the production of HO2 and C2H2. CH2O formation can be promoted by the H2 chemical effects, which is enhanced by the CO2 addition. In actually, the H2/CO2 coupled chemical effects almost have no obvious in- fluence on the temperatures and HO2 mole fraction. DME consumption is delayed by the H2/CO2 coupled chemical effects. Furthermore, the H2/CO2 coupled chemical effects can decrease the H radical mole fraction, CH4 concentration, C2H2 mole fraction, CH2O concentration and CHaCHO mole fraction, but increase the CO concentration.

关键词： dimethyl ether flame H2/CO2 addition coupled effects kinetic analysis

The role of axon guidance molecules in the pathogenesis of epilepsy

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Neural Regeneration Research 2025年第5期20卷 1244-1257页

作者： Zheng Liu Chunhua pan Hao Huang Department of Neurology Affiliated Hospital of Zunyi Medical UniversityZunyiGuizhou ProvinceChina

Current treatments for epilepsy can only manage the symptoms of the condition but cannot alter the initial onset or halt the progression of the disease. Consequently, it is crucial to identify drugs that can target novel cellular and molecular mechanisms and mechanisms of action. Increasing evidence suggests that axon guidance molecules play a role in the structural and functional modifications of neural networks and that the dysregulation of these molecules is associated with epilepsy susceptibility. In this review, we discuss the essential role of axon guidance molecules in neuronal activity in patients with epilepsy as well as the impact of these molecules on synaptic plasticity and brain tissue remodeling. Furthermore, we examine the relationship between axon guidance molecules and neuroinflammation, as well as the structural changes in specific brain regions that contribute to the development of epilepsy. Ample evidence indicates that axon guidance molecules, including semaphorins and ephrins, play a fundamental role in guiding axon growth and the establishment of synaptic connections. Deviations in their expression or function can disrupt neuronal connections, ultimately leading to epileptic seizures. The remodeling of neural networks is a significant characteristic of epilepsy, with axon guidance molecules playing a role in the dynamic reorganization of neural circuits. This, in turn, affects synapse formation and elimination. Dysregulation of these molecules can upset the delicate balance between excitation and inhibition within a neural network, thereby increasing the risk of overexcitation and the development of epilepsy. Inflammatory signals can regulate the expression and function of axon guidance molecules, thus influencing axonal growth, axon orientation, and synaptic plasticity. The dysregulation of neuroinflammation can intensify neuronal dysfunction and contribute to the occurrence of epilepsy. This review delves into the mechanisms associated with

关键词： axon guidance drug-resistant epilepsy epilepsy nerve regeneration nervous system diseases neural pathways neuroinflammatory diseases neuronal plasticity neurons synaptic remodeling

Adaptive H_∞ Control for Nonlinear Hamiltonian Systems with Time Delay and Parametric Uncertainties

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International Journal of Automation and computing 2014年第4期11卷 368-376页

作者： pan Wang wei-wei Sun Institute of Automation Qufu Normal University School of Electrical Information and Automation Qufu Normal University

This paper addresses the adaptive H∞ control problem for a class of nonlinear Hamiltonian systems with time delay and parametric uncertainties. The uncertainties under consideration are some small parameter perturbations involved in the structure of the Hamiltonian system. Both delay-independent and delay-dependent criteria are established based on the dissipative structural properties of the Hamiltonian systems and the Lyapunov-Krasovskii functional approach. In order to construct the adaptive H∞controller, the situation that the parameter perturbation is inexistent in the system is also studied and the controller is *** adaptive H∞ control problem is solved under some sufficient conditions which ensure the asymptotic stability and the L2 gain performance of the resulted closed-loop system. Numerical example is given to illustrate the applicability of the theoretical results.

关键词： Nonlinear Hamiltonian systems time delay H∞ control uncertainties Lyapunov-Krasovskii function

Preparation of a wearable K-pan@CuS composite fabric with excellent photothermal/electrothermal properties

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Frontiers of Materials Science 2023年第4期17卷 65-79页

作者： Jintao Zhang Qi Zhang wei pan Yu Qi Yajie Qin Zebo Wang Jiarui Zhao International Joint Laboratory of New Textile Materials and Textiles of Henan Province Zhongyuan University of TechnologyZhengzhou 450007China Huanghe Science and Technology College Zhengzhou 450006China School of Materials and Chemical Engineering Zhongyuan University of TechnologyZhengzhou 451191China College of Textiles Zhongyuan University of TechnologyZhengzhou 451191China

Electrospun nanofibers with highly efficient photothermal/electrothermal performance are extremely popular because of their great potential in wearable ***,the lack of necessary wearable properties such as high mechanical strength and quick response of electrospun micro/nanofibers seriously affects their practical *** this work,a technical route combining electrospinning and surface modification technology is *** 3-triethoxysilylpropylamine-polyacrylonitrile@copper sulfide(K-pan@CuS)composite fabric was achieved by modifying the original electrospinning pan fiber and subsequently loading CuS *** results show that the break strength of the K-pan@CuS fabric was increased by 10 times compared to that of the original pan@CuS ***,the saturated temperature of the K-pan@CuS fabric heater could reach 116℃within 15 s at a relatively low voltage of 3 V and 120.3℃within 10 s under an infrared therapy lamp(100 W).In addition,due to its excellent conductivity,such a unique structural design enables the fiber to be closely attached to the human skin and helps to monitor human *** K-pan@CuS fabric shows great potential in wearable heaters,hyperthermia,all-weather thermal management,and in vitro physical therapy.

关键词： electrospinning strain sensor electrothermal/photothermal conversion CuS wearable fabric

Impact of window and air-conditioner operation behaviour on cooling load in high-rise residential buildings

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Building Simulation 2022年第11期15卷 1955-1975页

作者： Cong Yu Jia Du wei pan Department of Civil Engineering The University of Hong KongPokfulamHong KongChina

Space cooling is an important building energy end-use that was found in recent years to be significantly impacted by occupant ***,the majority of previous studies ignored the interplay between the operation of windows and air conditioners(ACs)on cooling load,particularly in building energy *** addition,studies on the analysis of cooling load characteristics regarding high-rise buildings are *** vertical effect of high-rise buildings on cooling load remains *** study thus aims to examine how window and AC operation behaviours impact the cooling load of high-rise buildings in an urban context demonstrated by a real-life typical 40-floor residential building in Hong *** study investigates window and AC operation behaviours jointly and examines the vertical effect on cooling load by using agent-based building energy modelling(BEM)techniques and initiating stochastic and diverse behaviour modes.A carefully designed questionnaire survey was conducted to help build behaviour modes and validate energy *** building energy models were established integrating meteorological parameters generated by the computational fluid dynamics(CFD)programme for ten typical floors and nine combinations of window and AC behaviour *** results show that comfort-based AC modes and schedule-based window modes yielded the lowest cooling *** the combined effect of AC and window uses,the maximum difference in cooling loads could be 26.8%.Behaviour modes and building height induce up to 32.4%differences in cooling ***,a deviation between the behaviour modes and height on the cooling load was *** findings will help develop a thorough energy model inferring occupants’window and AC behaviour modes along with the building height in high-rise residential *** findings indicate that the interaction impact of window and AC behaviour modes and height should be jointly considered in future high-rise buildin

关键词： occupant behaviour air conditioning natural ventilation high-rise residential building building energy use

杂交鲶(怀头鲶♀×鲶鱼♂)人工驯养饲料试验研究

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水产学杂志 2001年第2期14卷 12-15页

作者：刘伟潘伟志任波赵春刚中国水产科学研究院黑龙江水产研究所哈尔滨150070

试验用杂交鲶鱼苗是以捕自黑龙江水域怀头鲶为母本 ,鲶鱼为父本进行正交获得的杂交一代。用人工饲料在水族箱、水槽中进行仔鱼开口驯养、集约化育苗试验 ,分别获得开食 6天 72 %驯化率和强化培育13天 5 2 %成活率 ;

关键词：怀头鲶鲶鱼杂交鱼苗饲养人工驯养饲料