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高频热疗磁疗治疗慢性细菌性前列腺炎的效果及对免疫功能的影响观察

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中国当代医药 2020年第35期27卷 101-103,107页

作者：郝维平许振强沈在雄刘洪杰福建省漳州市医院泌尿外科福建漳州363000

目的分析高频热疗磁疗治疗慢性细菌性前列腺炎的效果及对免疫功能的影响。方法选取2017年9月~2019年10月在福建省漳州市医院诊治的80例慢性细菌性前列腺炎患者作为研究对象,采用随机数字表法分为对照组(40例)和实验组(40例)。对照组采... 详细信息

目的分析高频热疗磁疗治疗慢性细菌性前列腺炎的效果及对免疫功能的影响。方法选取2017年9月~2019年10月在福建省漳州市医院诊治的80例慢性细菌性前列腺炎患者作为研究对象,采用随机数字表法分为对照组(40例)和实验组(40例)。对照组采取常规治疗,实验组采取高频热疗磁疗治疗。比较两组患者的临床疗效、前列腺液白细胞计数以及生活质量。结果实验组的总有效率(92.50%)高于对照组(65.00%),差异有统计学意义(P0.05);两组患者治疗后的IL-6水平高于治疗前,TNF-α、IL-1β水平低于治疗前,差异有统计学意义(P0.05);两组患者治疗后的社会功能、机体疼痛、心理卫生、躯体功能高于治疗前,差异有统计学意义(P<0.05);实验组治疗后的社会功能、机体疼痛、心理卫生、躯体功能高于对照组,差异有统计学意义(P<0.05)。结论高频热疗磁疗治疗慢性细菌性前列腺炎的临床效果显著,能有效提高免疫功能及生活质量,值得进一步推广应用。

关键词：高频热疗磁疗慢性细菌性前列腺炎免疫功能

Molecular simulation study of the microstructures and properties of pyridinium ionic liquid[HPy][BF_(4)]mixed with acetonitrile

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原子与分子物理学报 2025年第4期42卷 27-32页

作者： xu Jian-qiang MA Zhao-Peng CHENG Si LIU Zhi-Cong ZHU Guang-Lai Department of Physics School of Physics and Electronic InformationAnhui Normal UniversityWuhu 241002China

The microstructures and thermodynamic properties of mixed systems comprising pyridinium ionic liquid[HPy][BF_(4)]and acetonitrile at different mole fractions were studied using molecular dynamics simulation in this *** following properties were determined:density,self-diffusion coefficient,excess molar volume,and radial distribution *** results show that with an increase in the mole fraction of[HPy][BF_(4)],the self-diffusion coefficient ***,the excess molar volume initially decreases,reaches a minimum,and then *** rules of radial distribution functions(RDFs)of characteristic atoms are *** increasing the mole fraction of[HPy][BF_(4)],the first peak of the RDFs of HA1-F decreases,while that of CT6-CT6 rises at first and then *** indicates that the solvent molecules affect the polar and non-polar regions of[HPy][BF_(4)]differently.

关键词： Pyridinium ionic liquids Thermodynamic properties Molecular dynamics simulation Radial distribution functions

Exploring on the optimal preparation conditions of activated carbon produced from solid waste produced from sugar industry and Chinese medicine factory

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Waste Disposal and Sustainable Energy 2020年第1期2卷 65-77页

作者： zhen Li qiang Han ZhiFan Zong Qi xu KaiWei Wang Key Lab for Green Chemical Technology of Ministry of Education School of Chemical Engineering and TechnologyTianjin UniversityNo.135Yaguan RoadJinnan DistrictTianjin 300072China Department of Chemical Engineering Tianjin University Renai CollegeJinghai DistrictTianjin 301636China National Engineering Research Center for Distillation Technology Tianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China

The waste biomass produced from sugar industry and Chinese medicine factory such as bagasse,reed root residue,pueraria residue and liquorice residue were selected as the raw material for the preparation of activated carbon with zinc chloride as *** the same activation time,the influence of temperature and impregnation ratio on the preparation of activated carbon was investigated and the reasonable preparation conditions of activated carbon were monitored and *** obtained activated carbon samples were characterized by scanning electron microscopy,Brunauer-Emmett-Teller,methylene blue adsorption,thermogravimetric analysis and nitrogen *** from the experimental data,bagasse,reed root residue,pueraria residue are suitable for preparing activated *** bagasse,the optimum preparation condition was 700℃ and the impregnation ratio was 1:1,the adsorption capacity of methylene blue reached 246.83 mg/g at the *** reed root residue,the optimum preparation condition was 600℃ and the impregnation ratio was 1:2,the adsorption capacity of methylene blue reached 268.07 mg/g at the *** Pueraria residue,the optimum preparation condition was 700℃ and the impregnation ratio was 1:*** adsorption capacity of methylene blue reached 297.33 mg/g at the moment.

关键词： Activated carbon Waste biomass Nitrogen adsorption-desorption Optimize

Effects of Region and Elevation on Adaptation of Leaf Functional Traits of an Invasive Plant Erigeron annuus in China

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Phyton-International Journal of Experimental Botany 2022年第1期91卷 115-128页

作者： Yuanyuan Liu zhen Li Lie xu qiang Fu Yongjian Wang College of Horticulture&Forestry Sciences Hubei Engineering Technology Research Center for Forestry InformationHuazhong Agricultural UniversityWuhan430070China

A key scientific challenge relating to the threat of invasive plants on agriculture at the region level is to understand their adaptation and evolution in functional *** functional traits,related to growth and resource utilization,might lead to adaptation of invasive plants to the geographical barriers(region or elevation).In the field experiment,we discussed the effects of region and elevation on leaf functional traits on invasive plant Erigeron annuus in farmland habitats in *** compared leaf size,coefficient of variation(CV)of leaf traits,and fluctuating asymmetry(FA)of *** from three regions(east *** ***)and two leaf types(vegetative *** leaf),and from nine elevations(980-2100 m)in the west region of *** results indicated region and leaf type influenced leaf functional traits,and leaf size was significantly higher and CV of leaf traits and FA in reproductive leaves were significantly lower in the east region than in the west and center *** and leaf type affected leaf functional traits,and leaf size was significantly higher and CV of leaf traits in reproductive leaves were significantly lower in moderate *** has higher leaf size and developmental stability(lower CV and FA)in the eastern region due to the longer adaptation ***,leaf functional traits play an important role in the adaptation of different longitudes and *** can also facilitate the understanding of the invasiveness and adaptation of leaf traits of invasive plants in the agricultural ecosystem during their spread process in China.

关键词： Invasive alien plants(IAS) leaf traits coefficient of variation fluctuating asymmetry developmental stability

Optimization of the Drag Forces of Shell Janus Micromotor:A Study Based on Hydrodynamical Analysis and Numerical Simulation

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Computer Modeling in Engineering & Sciences 2022年第1期130卷 443-462页

作者： qiang Wang zhen Wang Wuhan University of Technology Wuhan430070China

Micromotors are widely used in cell operation,drug delivery and environmental decontamination due to their small size,low energy consumption and large propelling *** to traditional Janus micromotor,the shell Janusmicromotor has better motion ***,the structural optimization of itsmotion performance is still *** main factor restricting the motion performance of shell Janus micromotors is the drag *** the current work,theoretical analysis and numerical simulation were applied to analyze the drag forces of shell Janus *** study aims to design the optimum structure of shell Janus micromotors with minimum drag forces and obtain the magnitude of drag forces considering both the internal and external fluids of the shell Janus ***,the influence of the motor geometry and Reynolds number on the drag coefficient was analyzed using numerical *** results provide guidance for the optimum flow velocity,opening diameter and shell thickness to achieve minimum drag force.

关键词： Shell janus micromotor drag force dimensionless numbers

Framework for Contrastive Learning Phases of Matter Based on Visual Representations

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Chinese Physics Letters 2023年第2期40卷 50-54页

作者： Xiao-Qi Han Sheng-Song xu zhen Feng Rong-qiang He Zhong-Yi Lu Department of Physics Renmin University of ChinaBeijing 100872China

A main task in condensed-matter physics is to recognize,classify,and characterize phases of matter and the corresponding phase transitions,for which machine learning provides a new class of research tools due to the remarkable development in computing power and *** much exploration in this new field,usually different methods and techniques are needed for different ***,we present SimCLP:a simple framework for contrastive learning phases of matter,which is inspired by the recent development in contrastive learning of visual *** demonstrate the success of this framework on several representative systems,including non-interacting and quantum many-body,conventional and *** is flexible and free of usual burdens such as manual feature engineering and prior *** only prerequisite is to prepare enough state ***,it can generate representation vectors and labels and hence help tackle other *** therefore paves an alternative way to the development of a generic tool for identifying unexplored phase transitions.

关键词： Visual hence classify

Fair multigroup multicast precoding design based on traffic demands for multibeam satellite systems

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Chinese Journal of Aeronautics 2023年第10期36卷 366-374页

作者： Zhiqi DAI zhen xu School of Electronic and Information Engineering Beihang UniversityBeijing 100191China

Onboard resources are limited for multibeam satellite communication systems,while differences exist in traffic demands among *** conventional multigroup multicast precoding methods do not take traffic demands for users into consideration,it is difficult to flexibly adjust the offered throughput to users’*** with higher demand may obtain lower throughput while users with lower demand may be over-satisfied,which results in the requested-offered throughput mismatch and resource *** paper proposes a fair multigroup multicast precoding design based on traffic *** obtain the precoding design,the optimization problem aimed at maximizing the minimum throughput satisfaction ratio,which is defined as the ratio of the offered throughput to the traffic demand,is formulated,so as to provide fair service for all users while satisfying per-feed power constraints and traffic demand *** address this problem,an auxiliary variable is first introduced to equivalently simplify ***,the semidefinite relaxation and the bisection search strategies are adopted to further handle the ***,the optimal precoding vectors are obtained by employing eigenvalue decomposition or Gaussian *** results indicate the effectiveness of the proposed precoding algorithm and demonstrate that it can better adapt to the scenarios with different traffic demands.

关键词： Satellite communication systems Multigroup multicast precoding Traffic demand Throughput satisfaction ratio Fairness optimization

Nitridation of chromium powder in ammonia atmosphere

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International Journal of Minerals,Metallurgy and Materials 2015年第3期22卷 319-324页

作者： Ling Li qiang zhen Rong Li Nano-Science and Technology Research Center Shanghai University School of Materials Science and Engineering Shanghai University

CrN powder was synthesized by nitriding Cr metal in ammonia gas flow, and its chemical reaction mechanism and nitridation process were studied. Through thermodynamic calculations, the Cr-N-O predominance diagrams were constructed for different tempera- tures. Chromium nitride formed at 700-1200℃ under relatively higher nitrogen and lower oxygen partial pressures. Phases in the products were then investigated using X-ray diffraction （XRD）, and the Cr2N content varied with reaction temperature and holding time. The results indicate that the Cr metal powder nitridation process can be explained by a diffusion model. Further, Cr2N formed as an intermediate product because of an incomplete reaction, which was observed by high-resolution transmission electron microscopy （HRTEM）. After nitriding at 1000℃ for 20 h, CrN powder with an average grain size of 63 nm was obtained, and the obtained sample was analyzed by using a scanning electron microscope （SEM）.

关键词： chromium powder nitridation chromium nitride ammonia chemical synthesis reaction mechanism

Design Research of a Novel Aftercool-Humidifier Concept for Humid Air Turbine Cycle

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Journal of Thermal Science 2024年第3期33卷 951-969页

作者： ZHANG Junzheng xu zhen School of Energy and Power Engineering Shandong UniversityJi’nan250061China Shandong Engineering Laboratory for High-efficiency Energy Conservation and Energy Storage Technology&Equipment Shandong UniversityJi’nan250061China

Humid air turbine cycle(HAT)has potential of electrical efficiencies comparable to combined cycle,with lower investment cost and NO_(x) *** typical heat exchanger network of HAT consists of intercooler(if there is),aftercooler,recuperator,economizer and humidifier,which brings higher efficiency but makes the system more *** simplify HAT layout,a novel humidifier concept is proposed by integrating the aftercooler into traditional counter-current *** on this concept,a one-dimensional model including pressure drop and exergy calculation is established to distinguish the thermodynamic and hydrodynamic characteristics,and then the structural parameters,such as the number of rows and columns,tube diameter,pitch and type for a micro HAT are *** results show that the aftercool-humidifier plays the same role as original aftercooler and humidifier,and can match the in-tube air,out-tube air and water stream well with lower *** the case of micro HAT cycle,the volume of heat and mass transfer area can be reduced by 47%compared with traditional *** major thermal resistance occurred in the convection heat transfer process inside the tube;however,using enhanced tube cannot effectively improve the compactness of device.

关键词： humid air turbine cycle humidifier thermodynamic analysis one-dimensional model