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STUdY ON cOMPOSITION, MIcROSTRUcTURE ANd HARdNESS OF dLc FILMS BY VcAd

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Acta Metallurgica Sinica(English Letters) 2003年第4期16卷 271-275页

作者： L.chen Z.Y.Liu d.c.zeng W.Q.Qiu Z.H.Yuan S.S.Lin H.J.Hou InstituteofMaterialsScience&Technology CollegeofMechanicalEngineeringSouthChinaUniversityofTechnologyGuangzhou510640China GuangzhouResearchInstituteofNon-FerrousMetals Guangzhou510651ChinaManuscriptreceived25November2002

dLc super-hard films have been deposited on the substrates of single crystalline Si, pure Ti and stainless steel 18-8 by a method of vacuum cathode arc deposition (VcAd). The composition, microstructure and micro-hardness of the films have been studied in this paper. The results indicate that hardness of the dLc films is different on the different substrates. Hardness of the films increases with decreasing in surface roughness of the films. The maximum value of micro-hardness belongs to the dLc films deposited under the hydrogen pressure of 0.35Pa and the negative bias of 100V.

关键词： dLc films vacuum cathode arc deposition micro-hardness

Thermal,magnetic and magnetocaloric properties of Fe-based amorphous alloys

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Thermal,magnetic and magnetocaloric properties of Fe-based a...

Magiietocaloric Effect and critical Behavior in Amorphous(Gd4co3)100-xGex Alloys

2015中国功能新材料学术论坛暨第四届全国电磁材料及器件学术会议

作者： X.c.Zhong H.c.Tian S.S.Wang Z.W.Liu Z.G.Zheng d.c.zeng School of Materials Science and Engineering South China University of Technology

Magnetic refrigeration is becoming increasingly attractive due to its high-efficiency,energy-conservation,and environment-friendliness compared with the traditional gas compression refrigeration,which can help reaching the goal of low carbon economy advocated in the modern world and has broad application *** refrigeration technology has very wide range of applications at low *** the development of technology,magnetic refrigeration develops gradually to the high *** refrigeration material is the key to the room temperature magnetic refrigeration *** amorphous alloys magnetic refrigeration materials are suitable for Ericsson refrigeration cycle because of large magnetic order transition temperature region and large refrigerant capacity,and which recently become the competitive candidate materials for magnetic *** thermal,magnetic and magnetocaloric properties of Fe-based amorphous Fe

关键词： Fe-based amorphous melt spinning magnetocaloric effect magnetic refrigeration

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Magiietocaloric Effect and Critical Behavior in Amorphous(Gd...

Magnetic properties and magnetocaloric effects in Gdco9Si2 compound with multiple magnetic phase transitions

2012中国功能新材料学术论坛暨第三届全国电磁材料及器件学术会议

作者： B.B.Gao,X.c.Zhong~(a)),Z.G.Zheng,Z.W.Liu,d.c.zeng~(a)) School of Materials Science and Engineering,South china University of Technology,Guangzhou 510640, china

The magnetic materials with large magnetocaloric effect have attracted considerable attention for magnetic refrigeration ***,the study of magnetic refrigeration has been focused on crystalline materials. In recent yea...

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Magnetic properties and magnetocaloric effects in GdCo9Si2 c...

Brain region-specific roles of brain-derived neurotrophic factor in social stress-induced depressive-like behavior

2012中国功能新材料学术论坛暨第三届全国电磁材料及器件学术会议

作者： Z.G.Zheng,X.c.Zhong,H.Y.Yu,Z.W.Liu,d.c.zeng School of Materials Science & Engineering,South china University of Technology Guangzhou 510640,P.R.china

The magnetic materials with large magnetocaloric effect(McE) have attracted considerable attention for potential applications in magnetic *** discovery of giant McE in the pseudo-binary compound GdSiGe,the compounds i...

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Neural Regeneration Research 2025年第1期20卷 159-173页

作者： Man Han deyang zeng Wei Tan Xingxing chen Shuyuan Bai Qiong Wu Yushan chen Zhen Wei Yufei Mei Yan zeng Brain Science and Advanced Technology Institute Wuhan University of Science and TechnologyWuhanHubei ProvinceChina Geriatric Hospital Affiliated to Wuhan University of Science and Technology WuhanHubei ProvinceChina School of Public Health Wuhan University of Science and TechnologyWuhanHubei ProvinceChina

Brain-derived neurotrophic factor is a key factor in stress adaptation and avoidance of a social stress behavioral *** studies have shown that brain-derived neurotrophic factor expression in stressed mice is brain region–specific,particularly involving the corticolimbic system,including the ventral tegmental area,nucleus accumbens,prefrontal cortex,amygdala,and *** how brain-derived neurotrophic factor participates in stress processing in different brain regions will deepen our understanding of social stress *** this review,we discuss the expression and regulation of brain-derived neurotrophic factor in stress-sensitive brain regions closely related to the pathophysiology of *** focused on associated molecular pathways and neural circuits,with special attention to the brain-derived neurotrophic factor–tropomyosin receptor kinase B signaling pathway and the ventral tegmental area–nucleus accumbens dopamine *** determined that stress-induced alterations in brain-derived neurotrophic factor levels are likely related to the nature,severity,and duration of stress,especially in the above-mentioned brain regions of the corticolimbic ***,BdNF might be a biological indicator regulating stress-related processes in various brain regions.

关键词： amygdala chronic mild stress chronic social defeat stress corticolimbic system depression hippocampus medial prefrontal cortex nucleus accumbens social stress models ventral tegmental area

Glucocorticoid receptor signaling in the brain and its involvement in cognitive function

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Neural Regeneration Research 2025年第9期20卷 2520-2537页

作者： chonglin Su Taiqi Huang Meiyu Zhang Yanyu Zhang Yan zeng Xingxing chen Brain Science and Advanced Technology Institute Hubei Province Key Laboratory of Occupational Hazard Identification and ControlSchool of MedicineWuhan University of Science and TechnologyWuhanHubei ProvinceChina

The hypothalamic-pituitary-adrenal axis regulates the secretion of glucoco rticoids in response to environmental *** the brain,a nuclear receptor transcription fa ctor,the glucocorticoid recepto r,is an important component of the hypothalamicpituitary-a d renal axis's negative feedback loop and plays a key role in regulating cognitive equilibrium and *** glucoco rticoid receptor influences cognitive processes,including glutamate neurotransmission,calcium signaling,and the activation of brain-derived neurotrophic factor-mediated pathways,through a combination of genomic and non-genomic *** interactions within the central nervous system can alter the expression and activity of the glucocorticoid receptor,there by affecting the hypothalamic-pituitary-a d renal axis and stress-related cognitive *** appropriate level of glucocorticoid receptor expression can improve cognitive function,while excessive glucocorticoid receptors or long-term exposure to glucoco rticoids may lead to cognitive *** with cognitive impairment-associated diseases,such as Alzheimer's disease,aging,depression,Parkinson's disease,Huntington's disease,stroke,and addiction,often present with dysregulation of the hypothalamic-pituitary-adrenal axis and glucocorticoid receptor *** review provides a comprehensive overview of the functions of the glucoco rticoid receptor in the hypothalamic-pituitary-a d renal axis and cognitive *** emphasizes that appropriate glucocorticoid receptor signaling fa cilitates learning and memory,while its dysregulation can lead to cognitive *** provides clues about how glucocorticoid receptor signaling can be targeted to ove rcome cognitive disability-related disorders.

关键词： brain-derived neurotrophic factor calcium signaling glucocorticoid receptor glucocorticoid glutamate transmission hypothalamic-pituitary-adrenal axis long-term potentiation neurocognitive disorders neuroplasticity stress

Role of metabolic dysfunction and inflammation along the liver-brain axis in animal models with obesity-induced neurodegeneration

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Neural Regeneration Research 2025年第4期20卷 1069-1076页

作者： Evridiki Asimakidou Eka Norfaishanty Saipuljumri chih Hung Lo Jialiu zeng department of clinical Neurosciences University of CambridgeCambridgeUK School of Applied Science Republic PolytechnicSingaporeSingapore Lee Kong chian School of Medicine Nanyang Technological UniversitySingaporeSingapore

The interaction between metabolic dysfunction and inflammation is central to the development of neurodegenerative diseases such as Alzheimer’s disease and Parkinson’s ***-related conditions like type 2 diabetes and non-alcoholic fatty liver disease exacerbate this *** lipid accumulation,particularly in the liver,initiates a cascade of inflammatory processes that extend to the brain,influencing critical metabolic regulatory *** and palmitate,key lipid components,along with lipid transporters lipocalin-2 and apolipoprotein E,contribute to neuroinflammation by disrupting blood–brain barrier integrity and promoting *** insulin resistance further exacerbates brain insulin resistance and *** interventions targeting peripheral lipid metabolism and insulin signaling pathways have shown promise in reducing neuroinflammation in animal ***,translating these findings to clinical practice requires further investigation into human *** conclusion,metabolic dysfunction,peripheral inflammation,and insulin resistance are integral to neuroinflammation and *** these complex mechanisms holds potential for identifying novel therapeutic targets and improving outcomes for neurodegenerative diseases.

关键词： Alzheimer’s disease inflammatory cytokines insulin resistance lipid

Boosting hydrocarbon conversion via cu-doping induced oxygen vacancies on ceO2 in cO2 electroreduction

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Journal of Energy chemistry 2025年第1期100卷 66-76页

作者： Lei Xue Tong Shi chenhui Han Heng Zhang Fenrong Liu Haorun Li Yan Wang Xiaojun Gu Shanghong zeng Inner Mongolia Key Laboratory of chemistry and Physics of Rare Earth Materials School of Chemistry and Chemical Engineering Inner Mongolia University State Key Laboratory of coal conversion Institute of Coal Chemistry Chinese Academy of Sciences Institute of catalysis Department of Chemistry Zhejiang University National Key Laboratory of Baiyunobo Rare Earth Resource Research and comprehensive Utilization Baotou Research Institute of Rare Earths

conversion of cO2back to hydrocarbons is the most direct way of closing the“carbon cycle”,and its significance is further enlarged if this process is driven by renewable energies such as ***,precisely controlling the product selectivity towards hydrocarbons against the competitive hydrogen evolution remains challenging,especially for cu-based ***,we report a novel defect engineering strategy,by which cu-doping-induced oxygen vacancies on ceO2nanorods were effectively created,with adjustable vacancy/cu *** resulting optimum catalyst shows up to 79% catalytic current density to hydrocarbons （excluding cO）,with 49% faradaic efficiency to *** and density functional theory unveil that the ratio between oxygen vacancy and cu affects significantly the formation of*cHO and activation of H2O,which leads to the following deep hydrogenation to *** findings may spur new insights for designing and developing more controllable chemical process relevant to cO2utilization.

关键词： Oxygen vacancy Hydrocarbon production Reaction mechanism

Repetitive traumatic brain injury–induced complement c1–related inflammation impairs long-term hippocampal neurogenesis

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Neural Regeneration Research 2025年第3期20卷 821-835页

作者： Jing Wang Bing Zhang Lanfang Li Xiaomei Tang Jinyu zeng Yige Song chao Xu Kai Zhao Guoqiang Liu Youming Lu Xinyan Li Kai Shu department of Neurosurgery Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina department of Neurosurgery Shanxi Bethune HospitalShanxi Academy of Medical SciencesTongji Shanxi HospitalThird Hospital of Shanxi Medical UniversityTaiyuanShanxi ProvinceChina department of Pathophysiology School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina Institute for Brain Research Wuhan Center of Brain ScienceHuazhong University of Science and TechnologyWuhanHubei ProvinceChina department of Graduate Student Chongqing Medical UniversityChongqingChina department of Basic Medicine School of Medical ScienceHubei University for NationalitiesEnshiHubei ProvinceChina department of Anatomy School of Basic Medicine and Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei ProvinceChina

Repetitive traumatic brain injury impacts adult neurogenesis in the hippocampal dentate gyrus,leading to long-term cognitive ***,the mechanism underlying this neurogenesis impairment remains *** this study,we established a male mouse model of repetitive traumatic brain injury and performed long-term evaluation of neurogenesis of the hippocampal dentate gyrus after repetitive traumatic brain *** results showed that repetitive traumatic brain injury inhibited neural stem cell proliferation and development,delayed neuronal maturation,and reduced the complexity of neuronal dendrites and *** with repetitive traumatic brain injuryalso showed deficits in spatial memory ***,following repetitive traumatic brain injury,neuroinflammation was enhanced in the neurogenesis microenvironment where c1q levels were increased,c1q binding protein levels were decreased,and canonical Wnt/β-catenin signaling was *** inhibitor of c1 reversed the long-term impairment of neurogenesis induced by repetitive traumatic brain injury and improved neurological *** findings suggest that repetitive traumatic brain injury–induced c1-related inflammation impairs long-term neurogenesis in the dentate gyrus and contributes to spatial memory retrieval dysfunction.

关键词： complement c1 dendrite dentate gyrus hippocampus neural stem cell neurogenesis neuroinflammation neurological function neuron traumatic brain injury