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Experimental Investigations on Thermal Transport Properties of Nanoscale-Graphite-Film

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Journal of Thermal Science 2022年第4期31卷 1008-1015页

作者： ZHOU Jing SHI Changrui ZHANG Zhongyin FAN Xuanhui LING zheng ZHU jie TANG Dawei School of Energy and Power Engineering Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of EducationDalian University of TechnologyDalian 116024China

Accurately and directly characterizing the thermal properties of graphene and thin-graphite films(GFs)is of fundamental importance for understanding the heat transport mechanism and of practical interest in possible applications of thermal ***,due to the lack of experiment data,the mechanism of the thickness dependence of GFs thermal properties has not been fully understood *** this study,a 90-nm-thick GF is characterized by the time-domain thermoreflectance method,and the obtained GFs in-plane thermal conductivity and interfacial thermal conductance between GFs and gold are(1354±297)W/(m·K)and(38±6)MW/(m^(2)·K),*** theoretical models are also applied for comparison and discussion,and we conclude that the influence from the surface perturbation by supporting materials on the phonon transport of graphite nano-films will beyond the near surface layers to the more inner *** work not only provides a better understanding of the fundamental mechanisms of the thermal transport size effect in GFs,but also facilitates the possible applications of GFs as heat spreaders in the future.

关键词： nanoscale graphite thin film thermal conductivity interface thermal conductance

基于混沌—LSSVM神经网络风电场风速短期预测

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电气自动化 2013年第4期35卷 25-27,30页

作者：许刘锋杨玉良张磊张铮杰朱嵩淞河南电力公司平顶山供电公司河南平顶山467001 国电南瑞科技股份有限公司江苏南京210032

风电出力是电力系统运行与规划的依据,准确的风速预测有利于提高电力系统运行的经济性和可靠性。基于风速时间序列具有混沌特性的前提下,结合混沌时间序列的相空间重构和支持向量机回归理论,建立了一种基于风速混沌特性和当前最为流行... 详细信息

风电出力是电力系统运行与规划的依据,准确的风速预测有利于提高电力系统运行的经济性和可靠性。基于风速时间序列具有混沌特性的前提下,结合混沌时间序列的相空间重构和支持向量机回归理论,建立了一种基于风速混沌特性和当前最为流行的最小二乘向量机的短期风速预测模型。用于张家口某风电场进行风速预测,通过实例仿真计算分析表明,混沌—LSSVM神经网络的混合算法可进一步提高预测精度。

关键词：混沌相空间重构最小二乘支持向量机(LSSVM) 风速预测

Joint user pairing and power allocation in multi-slicing NOMA system

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The Journal of China Universities of Posts and Telecommunications 2021年第3期28卷 28-35页

作者： Bao jie zheng Weijun Shao Weiping Ma Tengteng Qie Wenbo Zhang Yong School of Electronic Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China Jiaxing Power Supply Company State Grid Zhejiang Electric Power Co.Ltd.Jiaxing 314033China State Grid Zhejiang Electric Power Co. Ltd.Hangzhou 310007China

Joint user pairing and power allocation approach is investigated to meet the rate requirement of enhanced mobile broadband(eMBB)slicing and delay constraint of ultra-reliable low-latency communication(URLLC)slicing simultaneously in downlink non-orthogonal multiple access(NOMA)*** maximizing the proportional fairness among mobile terminals,a two-step algorithm is *** a given user sets,the optimal user pairing sets and the factor of the power allocation in a group were obtained to ensure the quality of service(QoS)and the isolation between different types of *** results show that the proposed joint algorithm can provide better throughput than orthogonal multiple access(OMA).

关键词： non-orthogonal multiple access(NOMA) network slicing power allocation user pairing

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温针灸联合点式直线偏振光对轻中度腕管综合征患者视觉模拟评分、Boston腕管量表评分和腕部正中神经横截面积的影响

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中医研究 2022年第1期35卷 16-20页

作者：郑杰林惠贞程攀曾云江日双金红姝深圳市龙岗区人民医院康复医学科广东深圳518172 深圳市龙岗区人民医院超声医学科广东深圳518172

目的:观察温针灸联合点式直线偏振光对轻中度腕管综合征患者视觉模拟评分、Boston腕管量表评分和腕部正中神经横截面积的影响。方法:将60例符合纳入标准的轻、中度腕管综合征患者随机分为温针灸组(20例,脱落4例)、点式直线偏振光组(20例... 详细信息

目的:观察温针灸联合点式直线偏振光对轻中度腕管综合征患者视觉模拟评分、Boston腕管量表评分和腕部正中神经横截面积的影响。方法:将60例符合纳入标准的轻、中度腕管综合征患者随机分为温针灸组(20例,脱落4例)、点式直线偏振光组(20例,脱落4例)和综合治疗组(20例,脱落2例)3组。其中温针灸组行温针灸治疗,点式直线偏振光组进行点式直线偏振光物理治疗,综合治疗组进行以上2种治疗。3组均1 d治疗1次,5 d为1个疗程,共治疗2个疗程,疗程间休息2 d。在治疗前及治疗结束,采用视觉模拟评分法(visual analogue scale,VAS)评分,采用Boston腕管量表(Boston carpal tunnel questionnaire,BCTQ)进行症状维度和功能维度评分,采用LOGIQ E9彩色多普勒超声诊断仪检测腕部正中神经的横截面积(cross sectional area,CSA)。结果:与同组治疗前对比,3组治疗后的VAS评分、BCTQ评分、腕部正中神经CSA均降低,差异有统计学意义(P<0.05),且综合治疗组降低较温针灸组、点式直线偏振光组更为明显(P<0.05)。结论:温针灸联合点式直线偏振光可有效改善腕管综合征患者神经卡压症状,且疗效依次优于单一温针灸治疗及点式直线偏振光治疗。

关键词：轻中度腕管综合征温针灸点式直线偏振光视觉模拟评分腕部超声

Effect of Argon-Induced Porosity on Mechanical Properties of Powder Metallurgy Titanium Alloy Components using Hot Isostatic Pressing

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Acta Metallurgica Sinica(English Letters) 2021年第10期34卷 1386-1394页

作者： Min Cheng jie Wu zheng-Guan Lu Rui-Peng Guo Lei Xu Rui Yang College of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China Institute of Metal Research Chinese Academy of SciencesShenyang 110016China

This work reported the Ar-induced porosity in powder metallurgy Ti-5 Al-2.5 Sn alloy prepared by hot isostatic pressing(HIPing).The obtained microstructures of powder compacts were studied through optical and scanning electron microscopes,X-ray tomography,and the mechanical properties evaluated through tensile and impact *** results showed that the Ar-induced porosity is related to the hollow powder with gas bubble and the Ar leakage of sealed container during the powder *** hollow powder with gas bubble shows no obvious effects on mechanical properties of as-HIPed powder *** Ar content decreases with the increasing shrinkage of encapsulated powder.0.7%Ar-induced porosity degrades the impact toughness,but no reductions of tensile properties were *** content test is an effective method to detect the powder compacts with Ar concentration.

关键词： Titanium alloys Hot isostatic pressing Argon concentration Porosity

IL-17/IL-23炎症轴在慢性自发性荨麻疹中的表达及临床意义

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皮肤性病诊疗学杂志 2015年第2期22卷 102-104页

作者：张杰窦侠邵勇于波黄海艳刘丽明钟伟龙周静郑洁成北京大学深圳医院皮肤科广东深圳518036

目的:研究IL-17/IL-23炎症轴在慢性自发性荨麻疹(CSU)中的表达及临床意义。方法:用ELISA法检测并比较158例慢性自发性荨麻疹患者和121例健康者血清中IL-17、IL-23的表达水平;同时用自体血清皮肤实验(ASST)将CSU患者分成ASST(+)和ASST(-... 详细信息

目的:研究IL-17/IL-23炎症轴在慢性自发性荨麻疹(CSU)中的表达及临床意义。方法:用ELISA法检测并比较158例慢性自发性荨麻疹患者和121例健康者血清中IL-17、IL-23的表达水平;同时用自体血清皮肤实验(ASST)将CSU患者分成ASST(+)和ASST(-)两组,检测并比较两组血清中IL-17、IL-23的表达水平。结果:CSU患者血清IL-17、IL-23水平较正常对照组表达明显升高(t值分别为13.02、3.87,P值均<0.01),ASST(+)的CSU患者血清中IL-17、IL-23水平较ASST(-)的CSU患者表达升高(t值分别为8.36、4.96,P值均<0.01)。结论:IL-17/IL-23炎症轴在CSU的发病中起着重要作用,并可影响患者的自身免疫水平。

关键词：慢性自发性荨麻疹 IL-17 IL-23

mgr-mir-9 implicates Meloidogyne graminicola infection in rice by targeting the effector MgPDI

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Journal of Integrative Agriculture 2023年第5期22卷 1445-1454页

作者： TIAN Zhong-ling ZHOU Jia-yan zheng Jing-wu HAN Shao-jie Key Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province Interdisciplinary Research Academy(IRA)Zhejiang Shuren UniversityHangzhou 310015P.R.China Laboratory of Plant Nematology Institute of BiotechnologyCollege of Agriculture&BiotechnologyZhejiang UniversityHangzhou 310058P.R.China Ministry of Agriculture Key Lab of Molecular Biology of Crop Pathogens and Insect Pests Zhejiang UniversityHangzhou 310058P.R.China

MicroRNAs (miRNAs),a class of small non-coding RNAs,are crucial endogenous gene regulators in a range of animals,including plant-parasitic *** graminicola is an obligate sedentary endoparasite of rice and causes significant yield losses.A number of studies focused on the roles of *** effectors during the parasitic process;however,how nematode miRNAs regulate its effectors needs *** this research,we analyzed a cluster of *** miRNAs obtained at the second-stage juveniles (J2s) stage that are closely linked to the regulation of *** *** are 49 767 105 total clean reads obtained from three libraries.A total of 233 known miRNAs and 21 novel miRNAs were *** the known miRNAs,mgr-lin-4,mgr-mir-1,mgr-mir-100,mgrmir-86,mgr-mir-279,mgr-mir-87,mgr-mir-71,mgr-mir-9,mgr-mir-50,mgr-mir-72,and mgr-mir-34 are the most abundant11 miRNAs ***,the expression levels of selected miRNAs were validated by real-time quantitative *** hypothesized that these miRNAs might regulate the expression of secreted effectors during the J2s stage to facilitate its *** with this,we found that mgr-mir-9 targets MgPDI,an important *** effector *** addition to that,J2s treated with mgr-mir-9 mimics showed down-regulation of MgPDI expression and reduced reproductive ability,alluding mgr-mir-9 is involved in nematode *** results provide novel insight into the regulatory functions of *** miRNAs during the infection and identify miRNAs and their effector targets as potential key management targets to limit parasite survival during the early stages of infection.

关键词： microRNA function Meloidogyne graminicola deep sequencing Dual-Luciferase Reporter Assay System proteindisulfideisomerase

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现代汉服的消费现状和营销对策研究

纺织报告 2022年第8期41卷 29-31页

作者：张佳星雷雨婷陈婧杨淑悦杨阳郑捷西安工程大学管理学院陕西西安710048

汉服文化源远流长,是中华民族千年来的文化结晶。现代汉服在保留传统汉服形制的基础上经过优化,更加实用且方便穿着,同时消费者对传统汉服日常化的呼声也越来越高。文章通过问卷调查,分析了消费者对现代汉服的态度以及消费现状,并以市场... 详细信息

汉服文化源远流长,是中华民族千年来的文化结晶。现代汉服在保留传统汉服形制的基础上经过优化,更加实用且方便穿着,同时消费者对传统汉服日常化的呼声也越来越高。文章通过问卷调查,分析了消费者对现代汉服的态度以及消费现状,并以市场上3个汉服品牌为例,进一步分析了汉服营销推广中存在的问题,最后给出相关建议。

关键词：现代汉服文化发展困境营销策略

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Anti-abrasion collagen fiber-based membrane functionalized by UiO-66-NH_(2)with ultra-high efficiency and stability for oil-in-water emulsions separation

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Chinese Journal of Chemical Engineering 2024年第2期66卷 285-297页

作者： Xiaoxia Ye Rixin Huang Zhihong zheng Juan Liu jie Chen Yuancai Lv College of Environmental and Safety Engineering Fuzhou UniversityFuzhou 350108China College of Chemical Engineering Fuzhou UniversityFuzhou 350108China

Membrane separation strategies offer promising platform for the emulsion ***,the low mechanical strength of membrane separation layers and the trade-off between separation flux and efficiency present significant *** this study,we report a CFM@UiO-66-NH_(2)membrane with high separation flux,efficiency and stability,through utilizing a robust anti-abrasion collagen fiber membrane(CFM)as the multifunctional support and UiO-66-NH_(2)by an in-situ growth as the separation *** high mechanical strength of the CFM compensated for the weakness of the separation layer,while the charge-breaking effect of UiO-66-NH_(2),along with the size sieving of its constituent separating layers and the capillary effect of the collagen fibers,contributed to the potential for efficient ***,the CFM@UiO-66-NH_(2)membrane exhibited superhydrophilic properties,making it suitable for separating oil-in-water microemulsions and nanoemulsions stabilized by anionic *** membrane demonstrated remarkable separation efficiencies of up to 99.960%and a separation flux of370.05 L·m^(-2)·h^(-1).Moreover,it exhibits stability,durability,and abrasion resistance,maintaining excellent separation performance even when exposed to strong acids and alkalis without any damage to its structure and *** six cycles of reuse,it achieved a separation flux of 417.97 L·m^(-2)·h^(-1)and a separation efficiency of 99.747%.Furthermore,after undergoing 500 cycles of strong abrasion,the separation flux remained at 124.39 L·m^(-2)·h^(-1),with a separation efficiency of 99.992%.These properties make it suitable for the long-term use in harsh operating *** attribute these properties to the electrostatic effect resulting from the amino group on UiO-66-NH_(2)and its in-situ growth on the CFM,which forms a size-screening separation *** work highlights the potential of the CFM@UiO-66-NH_(2)membrane as an environmentally friendly size-screening

关键词： Collagen fibers Metal-organic frameworks Oil-in-water emulsion separation Size sieving