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Study of the s → dv■ rare hyperon decays in the Standard Model and new physics

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Chinese Physics C 2019年第9期43卷 26-32页

作者： xiao-hui hu Zhen-Xing Zhao INPAC Shanghai Key Laboratory for Particle Physics and Cosmology MOE Key Laboratory for Particle Physics Astrophysics and CosmologySchool of Physics and Astronomy Shanghai Jiao-Tong University

FCNC processes offer important tools to test the Standard Model（SM）and to search for possible new *** this work,we investigate the s→dvv rare hyperon decays in SM and *** find that in SM the branching ratios for these rare hyperon decays range from 10-14 to *** all the errors in the form factors are included,we find that the final branching ratios for most decay modes have an uncertainty of about 5% to 10%.After taking into account the contribution from new physics,the generalized SUSY extension of SM and the minimal 331 model,the decay widths for these channels can be enhanced by a factor of 2～7.

关键词： branching ratios rare hyperon decays form factors light-front approach new physics

Solvent Effect on Conformation of a Cycloheptapeptide,Stylopeptide 1,Evaluated by Molecular Dynamics in Methonal and Aqueous Environments

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Chemical Research in Chinese Universities 2009年第4期25卷 560-563页

作者： LIU xiao-qing LI xiao-hui TENG hu XIU Zhi-long Department of Bioscience and Biotechnology School of Environmental and Biological Science and Technology Dalian University of Technology Dalian 116024 P. R. China

Stylopeptide 1 synthesized and isolated from different sources exhibits a large activity difference in inhibitory effect on the growth of a cancer *** on the different amounts of methanol and water during synthesis,isolation and purification of the cyclic peptides,molecular dynamics(MD) was employed to simulate the conformation of stylopeptide 1 in methanol and aqueous *** comparative results show that the backbone ring was more rigid in methanol than in *** methanol,two β-turns and three hydrogen bonds were well conserved throughout the simulation,whereas no hydrogen bonds or turns were preserved in *** activity difference of stylopeptide 1 seemed to be attributed to the solvent effect on its conformation.

关键词： Cyclic peptide Methanol Water Molecular dynamics

Relationship between AQP4 expression and structural damage to the blood-brain barrier at early stages of traumatic brain injury in rats

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Chinese Medical Journal 2013年第22期126卷 4316-4321页

作者： LU Hong LEI xiao-yan hu hui HE Zhan-ping Department of Radiology Department of Nursing Affiliated Haikou Hospital Xiangya School of Medicine Central South University Haikou Hainan 570208 China

Background Although some studies have reported that aquaporin-4 （AQP4） plays an important role in the brain edema after traumatic brain injury （TBI）, little is known about the AQP4 expression in the early stage of TBI, or about the correlation between the structural damage to the blood-brain barrier （BBB） and angioedema. The aim of this project was to investigate the relationship between AQP4 expression and damage to the BBB at early stages of TBI. Methods One hundred and twenty healthy adult Wistar rats were randomly divided into two groups： sham operation group （SO） and TBI group. The TBI group was divided into five sub-groups according to the different time intervals： 1, 3, 6, 12, and 24 hours. The brains of the animals were taken out at different time points after TBI to measure brain water content. The cerebral edema and BBB changes in structure were examined with an optical microscopy （OM） and transmission electron microscopy （TEM）, and the IgG content and AQP4 protein expression in traumatic brain tissue were determined by means of immunohistochemistry and Western blotting. The data were analyzed with SPSS 13.0 statistical software. Results In the SO group, tissue was negative for IgG, and there were no abnormalities in brain water content or AQP4 expression. In the TBI group, brain water content significantly increased at 6 hours and peaked at 24 hours following injury. IgG expression significantly increased from 1 to 6 hours following injury, and remained at a high level at 24 hours. Pathological observation revealed BBB damage at 1 hour following injury. Angioedema appeared at 1 hour, was gradually aggravated, and became obvious at 6 hours. Intracellular edema occurred at 3 hours, with the presence of large glial cell bodies and mitochondrial swelling. These phenomena were aggravated with time and became obvious at 12 hours. In addition, microglial proliferation was visible at 24 hours. AQP4 protein expression were reduced at 1 hour, lowest at 6 hours, and

关键词： brain injury, edema, blood-brain barrier, aquaporins animal experiment

Haploidentical Allogeneic Hematopoietic Stem Cell Transplantation for Thymoma-associated Severe Aplastic Anemia: a Case Report

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Chinese Medical Sciences Journal 2013年第3期28卷 189-191页

作者： Cong Lu Guang-sheng He Song Jin Xu-hui Zhang xiao-hui hu De-pei Wu Ai-ning Sun Chang-geng Ruan Key Laboratory of Thrombosis and Hemostasis of National Health and Family Planning Commission of the People's Republic of China Jiangsu Insititute of HematologyDepartment of Hematology the First Affiliated Hospital of Soochow University

THYMOMA, a relatively rare epithelial neoplasm with unique clinical and pathologic features, is the most usual diagnosis for a mass located in the mediastinum. It is often associated withautoimmune disorders. The myastnema gravls ano pure red cell aplasia are the most common disorders, with the incidences of 40% and 5%, respectively, while the incidence of aplastic anemia is only about 0-1.4%. 1 Thymectomy is hard to perform on patients with severe aplastic anemia（SAA） due to severe pancytopenia.

关键词： haploidentical allogeneic hematopoietic stem cell transplantation malignant thymoma severe aplastic anemia

Synthesis of highly stable Ni nanoparticles via electrostatic self-assembly for enhanced hydrogen storage of MgH_(2)

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Rare Metals 2024年第9期43卷 4356-4366页

作者： Qin-Ke Tang Jiang-Chuan Liu Rui Shi Yun-Feng Zhu Ji-Guang Zhang Ya-Na Liu Jun Wang Yao Zhang xiao-hui hu Zhi-Bin Liu Li-Quan Li College of Materials Science and Engineering Jiangsu Collaborative Innovation Centre for Advanced Inorganic Function CompositesNanjing Tech UniversityNanjing 211816China School of Materials Science and Engineering Southeast UniversityNanjing 211189China

Magnesium-based hydrides have been widely recognized as an appropriate choice for solid-state hydrogen ***,its undesirable thermodynamics and sluggish hydrogenation/dehydrogenation kinetics are major bottlenecks for its ***,a highly stable and highly dispersed Ni-based catalyst(Ni/Al_(2)O_(3)/GN)was fabricated to promote the hydrogen storage performance of MgH_(2)via the electrostatic effect of NiAl-LDH/GN precursor with a co-calcination reduction ***_(2)-5wt%Ni/Al_(2)O_(3)/GN exhibits excellent hydrogen storage performance,releasing about 5.7 wt%hydrogen in 3500 s at 250℃,and can reach a saturation hydrogen absorption of about 6.15 wt%in 3000 s at 100℃.Furthermore,it also shows low dehydrogenation apparent activation energy of 89.1 and 118.2 kJ·mol^(-1).Impressively,the catalyst ensures the stability of both the physical phase and structure during ball milling and cycling *** role of each phase in Ni/Al_(2)O_(3)/GN on the hydrogen storage performance of MgH_(2)was also discussed through experiments and theoretical calculation,and the synergistic catalytic mechanism of Ni/Al_(2)O_(3)/GN was clearly *** work provides a unique perspective for the preparation of highly stable and highly dispersible catalysts.

关键词： Magnesium hydride Ni/Al_(2)O_(3)/GN Hydrogen storage performance Catalytic mechanism

Renal Extramedullary Plasmacytoma--One Case Report

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Clinical oncology and cancer researeh 2010年第6期7卷 380-382页

作者： Yu-ping ZHONG Shi-lun CHEN xiao-hui LIU Ying hu Xin LI Jia-jia ZHANG Na AN Department of Hematology and Oncology Chaoyang Hospital Capital Medical University Research Center of Multiple Myeloma Beijing 100043. China.

Extramedullary plasmacytoma （EMP） is rare in multiple myeloma, especially kidneys are involved. We report one case, including diagnosis and treatment. The purpose of this paper is to provide an attention on the extr... 详细信息

关键词： extramedullary plasmacytoma renal myeloma.

Electrochemical conversion of methane to bridge the gap in the artificial carbon cycle

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Journal of Energy Chemistry 2025年第1期100卷 286-308页

作者： Yuhao Peng Yuefeng Song Ihar Razanau Juanxiu xiao Wei xiao Di hu Guoxiong Wang College of Chemistry and Molecular Sciences Hubei Key Laboratory of Electrochemical Power Sources Wuhan University State Key Laboratory of Catalysis Dalian National Laboratory for Clean Energy iChEM (Collaborative Innovation Center of Chemistry for Energy Materials) Dalian Institute of Chemical Physics Chinese Academy of Sciences Laboratory of Physical-Chemical Technologies SSPA Scientific and Practical Materials Research Centre of NAS of Belarus State Key Laboratory of Marine Resources Utilization in South China Sea Collaborative Innovation Center of Marine Science and Technology School of Marine Science and Engineering Hainan University Department of Chemical and Environmental Engineering University of Nottingham Ningbo China

Methane, an abundant one-carbon（C1） resource, is extensively used in the industrial production of vital fuels and value-added chemicals. However, current industrial methane conversion technologies are energy-and carbon-intensive, mainly due to the high activation energy required to break the inert C–H bond, low selectivity, and problematic side reactions, including CO2emissions and coke deposition. Electrochemical conversion of methane（ECM） using intermittent renewable energy offers an attractive solution, due to its modular reactor design and operational flexibility across a broad spectrum of temperatures and pressures. This review emphasizes conversion pathways of methane in various reaction systems, highlighting the significance and advantages of ECM in facilitating a sustainable artificial carbon cycle. This work provides a comprehensive overview of conventional methane activation mechanisms and delineates the complete pathways of methane conversion in electrolysis contexts. Based on surface/interface chemistry, this work systematically analyzes proposed reaction pathways and corresponding strategies to enhance ECM efficiency towards various target products, including syngas, hydrocarbons, oxygenates, and advanced carbon materials. The discussion also encompasses opportunities and challenges for the ECM process, including insights into ECM pathways, rational electrocatalyst design, establishment of benchmarking protocols, electrolyte engineering, enhancement of CH4conversion rates, and minimization of CO2emission.

关键词： Methane Electrochemical conversion Reaction mechanism Catalyst design Electrode Electrocatalysis

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隧道群路段环境光照度与驾驶人瞳孔面积分析

华南理工大学学报（自然科学版） 2016年第12期44卷 89-96页

作者：阎莹叶飞王晓飞沈小燕胡卉长安大学汽车学院陕西西安710064 浙江交通职业技术学院运输管理学院浙江杭州311112 华南理工大学土木与交通学院广东广州510640

为提高高速公路隧道群路段驾驶人行车安全，采用眼动仪等设备对被试驾驶人的瞳孔变化进行了试验研究，分析了隧道群环境光照度、隧道纵深与驾驶人瞳孔面积的相关关系；提出隧道群路段“6小段”划分方式，构建驾驶人瞳孔面积最大差值与... 详细信息

为提高高速公路隧道群路段驾驶人行车安全，采用眼动仪等设备对被试驾驶人的瞳孔变化进行了试验研究，分析了隧道群环境光照度、隧道纵深与驾驶人瞳孔面积的相关关系；提出隧道群路段“6小段”划分方式，构建驾驶人瞳孔面积最大差值与隧道连接段长度之间的曲线模型．结果表明：隧道群路段驾驶人瞳孔面积与环境光照度呈指数变化关系，上游隧道出口视觉明适应水平及连接段长度是影响下游隧道及整个隧道群路段视觉适应的主要因素．最后，提出改善隧道群路段环境光照度的推荐值，建议当隧道间距小于50m时，设置隧道连接段遮光棚或上游隧道照度渐变式出口；当隧道间距在50～100m之间时，设置下游隧道照度渐变式进口．

关键词：交通安全隧道瞳孔面积光照度关系模型视觉环境

Synthesis,Characterization and Antibacterial Activities of Some Novel Halogenated 1-benzyl-1-ethyl-3-phenylthiourea Derivatives

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Synthesis,Characterization and Antibacterial Activities of S...