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Energy & Environmental Materials 2024年第6期7卷 388-398页

作者： Yue Wang Yinchang Zhao jun ni Zhenhong Dai Department of Physics Yantai UniversityYantai 264005China State Key Laboratory of Low-Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China

We employ advanced first principles methodology,merging self-consistent phonon theory and the Boltzmann transport equation,to comprehensively explore the thermal transport and thermoelectric properties of ***,the study accounts for the impact of quartic anharmonicity on phonon group velocities in the pursuit of lattice thermal conductivity and investigates 3ph and 4ph scattering processes on phonon *** various methodologies,including examining atomic vibrational modes and analyzing 3ph and 4ph scattering processes,the article unveils microphysical mechanisms contributing to the lowκL within *** features include significant anisotropy in Cd atoms,pronounced anharmonicity in K atoms,and relative vibrations in non-equivalent As atomic *** atoms,situated between As layers,exhibit rattling modes and strong lattice anharmonicity,contributing to the observed lowκ*** flat bands near the valence band maximum translate into high PF,aligning with ultralowκL for exceptional thermoelectric *** optimal temperature and carrier concentration doping,outstanding ZT values are achieved:4.25(a(b)-axis,p-type,3×10^(19)cm^(−3),500 K),0.90(c-axis,p-type,5×10^(20)cm^(−3),700 K),1.61(a(b)-axis,n-type,2×10^(18)cm^(−3),700 K),and 3.06(c-axis,n-type,9×10^(17)cm^(−3),700 K).

关键词： anharmonic lattice dynamics electron transport characteristics first principles calculation lattice thermal transport octahedron thermoelectric properties

RNA viromes of Dermacentor nuttalli ticks reveal a novel uukuvirus in Qinghai Province,China

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Virologica Sinica 2024年第4期39卷 537-545页

作者： Yaohui Fang jun Wang Jianqing Sun Zhengyuan Su Shengyao Chen Jian Xiao jun ni Zhihong Hu Yubang He Shu Shen Fei Deng Key Laboratory of Special Pathogens and Biosafety and National Virus Resource Center Wuhan Institute of VirologyChinese Academy of SciencesWuhan 430071China University of Chinese Academy of Sciences Beijing 101408China Qinghai Lake National Nature Reserve Administration Xining 810000China Hubei Jiangxia Laboratory Wuhan 430200China Xinjiang Key Laboratory of Vector-borne Infectious Diseases Urumqi830002China

Ticks are a major parasite on the Qınghai-Tibet Plateau,western China,and represent an economic burden to agriculture and animal *** research on tick-borne pathogens that threaten humans and animals,the viromes of dominant tick species in this area remain *** this study,we collected Dermacentor nuttalli ticks near Qınghai Lake and identified 13 viruses belonging to at least six families through metagenomic *** viruses were of high abundance in pools,including Xınjiang tick-associated virus 1(XJTAV1),and three novel viruses:Qınghai Lake virus 1,Qınghai Lake virus 2(QHLV1,and QHLV2,unclassified),and Qınghai Lake virus 3(QHLV3,genus Uukuvirus of family Phenuiviridae in order Bunyavirales),which lacks the M *** minimum infection rates of the four viruses in the tick groups were 8.2%,49.5%,6.2%,and 24.7%,respectively,suggesting the prevalence of these viruses in *** ticks.A putative M segment of QHLV3 was identified from the next-generation sequencing data and further characterized for its signal peptide cleavage site,N-glycosylation,and transmembrane ***,we probed the L,M,and S segments of other viruses from sequencing data of other tick pools by using the putative M segment sequence of *** revealing the viromes of *** ticks,this study enhances our understanding of tick-borne viral communities in highland *** putative M segment identified in a novel uukuvirus suggests that previously identified uukuviruses without M segments should have had the same genome organization as typical *** findings will facilitate virus discovery and our understanding of the phylogeny of tick-borne uukuviruses.

关键词： Dermacentor nuttalli Qınghai Province Virome Uukuvirus M segment

Characteristics of proppant transport and placement within rough hydraulic fractures

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Petroleum Exploration and Development 2024年第2期51卷 453-463页

作者： HUANG Hai ZHENG Yong WANG Yi WANG Haizhu ni jun WANG Bin YANG Bing ZHANG Wentong School of Petroleum Engineering Xi’an Shiyou UniversityXi’an 710065China Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery Xi’an 710075China Shaanxi Provincial Key Laboratory of Oil and Gas Well and Reservoir Seepage and Rock Mechanics Xi’an 710065China Oil&Gas Field Production Construction Division PetroChina Tarim Oilfield CompanyKorla 841000China National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China Shaanxi Yanchang Petroleum(Group)Co. Ltd.Xi’an 710075China

A three-dimensional reconstruction of rough fracture surfaces of hydraulically fractured rock outcrops is carried out by casting process,a large-scale experimental setup for visualizing rough fractures is built to perform proppant transport *** typical characteristics of proppant transport and placement in rough fractures and its intrinsic mechanisms are investigated,and the influences of fracture inclination,fracture width and fracturing fluid viscosity on proppant transport and placement in rough fractures are *** results show that the rough fractures cause variations in the shape of the flow channel and the fluid flow pattern,resulting in the bridging buildup during proppant transport to form unfilled zone,the emergence of multiple complex flow patterns such as channeling,reverse flow and bypassing of sand-carrying fluid,and the influence on the stability of the sand *** proppant has a higher placement rate in inclined rough fractures,with a maximum increase of 22.16 percentage points in the experiments compared to vertical fractures,but exhibits poor stability of the sand *** fracture width aggravates the bridging of proppant and induces higher pumping *** the viscosity of the fracturing fluid can weaken the proppant bridging phenomenon caused by the rough fractures.

关键词： reservoir fracturing rough fracture proppant transport and placement characteristics bridging buildup

Proppant transport in rough fracture networks using supercritical CO_(2)

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Petroleum Science 2024年第3期21卷 1852-1864页

作者： Yong Zheng Meng-Meng Zhou Ergun Kuru Bin Wang jun ni Bing Yang Ke Hu Hai Huang Hai-Zhu Wang School of Petroleum Engineering Xi'an Shiyou UniversityXian710065ShaanxiChina Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery Xi'an710075ShaanxiChina State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing2249China School of Mining and Petroleum Engineering University of AlbertaEdmontonTG2W2AlbertaCanad Shaanxi Yanchang Petroleum(Group)Co. Ltd.Xi'an710075ShaanxiChina

Proppant transport within fractures is one of the most critical tasks in oil,gas and geothermal reservoir stimulation,as it largely determines the ultimate performance of the operating *** transport in rough fracture networks is still a relatively new area of research and the associated transport mechanisms are still *** this study,representative parameters of rough fracture surfaces formed by supercritical CO_(2) fracturing were used to generate a rough fracture network model based on a spectral synthesis *** fluid dynamics(CFD)coupled with the discrete element method(DEM)was used to study proppant transport in this rough fracture *** reveal the turning transport mechanism of proppants into branching fractures at the intersections of rough fracture networks,a comparison was made with the behavior within smooth fracture networks,and the effect of key pumping parameters on the proppant placement in a secondary fracture was *** results show that the transport behavior of proppant in rough fracture networks is very different from that of the one in the smooth fracture *** turning transport mechanisms of proppant into secondary fractures in rough fracture networks are gravity-driven sliding,high velocity fluid suspension,and fracture structure *** the same injection conditions,supercritical CO_(2)with high flow Reynolds number still has a weaker ability to transport proppant into secondary fractures than *** of the supercritical CO_(2)needs to be increased beyond a certain value to have a significant effect on proppant carrying,and under the temperature and pressure conditions of this paper,it needs to be increased more than 20 times(about 0.94 m Pa s).Increasing the injection velocity and decreasing the proppant concentration facilitates the entry of proppant into the branching fractures,which in turn results in a larger stimulated reservoir *** results help to understand the pro

关键词： Reservoir stimulation CCUS Rough fracture network Supercritical CO_(2) Proppanttransport

Celastrus orbiculatus Extract Inhibits Immune Inflammatory Thrombotic State of B-Lymphoma

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Chinese Journal of Integrative Medicine 2024年第11期30卷 1018-1026页

作者： ZHU Miao SHI Qing-qing ni jun WU Wei SUN Xing SUN Mei XU Kai-lin LIU Yan-qing GU Jian GU Hao Department of Hematology Clinical Medical Col ege Yangzhou University Yangzhou Institute of Hematology Department of Hematology The Affiliated Hospital of Xuzhou Medical University Department of Oncology The Affiliated Hospital of Yangzhou University Yangzhou University Department of Neurology The Affiliated Brain Hospital of Nanjing Medical University

Objective:To investigate the inhibitory effect of Celastrus orbiculatus extracts（COE） on the proliferation of lymphoma cells and the immune regulation ability on inflammation and thrombophilia in ***:The 38B9 lymphoma cells were treated with COE（160μg/mL） and CTX（25 μmol/L）.The apoptosis rate and cell cycle of each group were detected by flow *** secretion of inflammatory factors,including interleukin（IL）-6,IL-10,and tumor necrosis factor α（TNF-α）,in cell supernatant was detected by enzyme-linked immunosorbent assay（ELISA）.In vivo,BALB/c mice were subcutaneously injected with 38B9 lymphoma cells to establish lymphoma ***(3 mg·kg-1·d-1) and CTX(40 mg-kg-1·d-1) were administered to the model mice,*** expression of plasma inflammatory factors（IL-6,IL-10 and TNF-α） and thrombus indexes,including D-dimer（D-D）,von Willebrand factor（vWF） and tissue factor（TF）,were detected by ELISA before tumor bearing（1 d）,after tumor formation（14 d） and after intervention（21 d）.PicoGreen dsDNA was used to detect the level of serum neutrophil extracellular traps（NETs）.Flow cytometry was used to detect the expression of platelet activation marker calcium-dependent lectin-like receptor 2（CLEC-2）.The tumor growth and survival of mice were ***:The 38B9 lymphoma cells were apoptotic after the intervention of COE and *** ratio of G2-M phase cells decreased in COE intervented cells compared with the control cells（Pnificantly reduced after COE or CTX intervention（Pnificantly increased（Pnintervented *** significantly lower levels of TNF-α,IL-6,NETs,TF,DD and CLEC-2,as well as higher IL-10 were observed in COE and CTX treatment mice in comparision with the control mice（P

关键词： Celastrus orbiculatus extract immune regulation lymphoma murine lymphoma cells proliferation inhibition thrombotic state tumor inflammation

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国家实验室创新生态系统:理论、经验与启示

中国科技论坛 2024年第6期 11-21页

作者：倪君国家发展和改革委员会中国经济体制改革研究会北京100081

国家实验室创新生态系统在宏观层面以强化国家战略科技力量、加快推进高质量发展为战略目标,在微观层面以实现国家实验室科技创新、成果转化和人才培育三大功能为执行目标。国家实验室创新生态系统遵循主体交互—资源整合—协同创新—... 详细信息

国家实验室创新生态系统在宏观层面以强化国家战略科技力量、加快推进高质量发展为战略目标,在微观层面以实现国家实验室科技创新、成果转化和人才培育三大功能为执行目标。国家实验室创新生态系统遵循主体交互—资源整合—协同创新—价值共创的运行逻辑,基于人才-知识-技术生态系统提供内生动力,也需要科学-技术-创新政策体系提供政策支持和战略牵引。从科研设施布局、研发经费支持、创新人才培育、科技成果转化等领域展开,分析美国、德国、英国、意大利等国家实验室创新生态系统的发展经验,给出加快中国国家实验室建设与布局的启示与建议。

关键词：国家实验室创新生态系统协同创新成果转化

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小批量多返工生产系统瞬态性能分析和优化

控制与决策 2024年第8期39卷 2746-2754页

作者：贾之阳倪泽军王遵君王钢北京理工大学自动化学院北京100081

随着智能制造和绿色制造战略的提出,实际生产对小批量定制化加工的需求日益增加,同时为了进一步提高生产制造的加工效率和产品质量,返工生产线在企业中的应用也日益频繁.基于小批量生产背景,针对应用随机故障机器和有限缓冲区的多返工... 详细信息

随着智能制造和绿色制造战略的提出,实际生产对小批量定制化加工的需求日益增加,同时为了进一步提高生产制造的加工效率和产品质量,返工生产线在企业中的应用也日益频繁.基于小批量生产背景,针对应用随机故障机器和有限缓冲区的多返工生产系统,进行瞬态性能分析,并对多返工系统进行生产调度.为定量分析该生产系统的瞬态性能,通过马尔科夫分析方法建立系统的数学模型,提出一种动态的分解和聚合算法来预测系统的生产率、消耗率、在制品库存等瞬态性能指标,并基于仿真对比实验验证所提出算法的精确性和有效性.此外,针对返工生产系统在劳动力有限的情景下,采用优化算法对各机器效率进行合理分配来优化系统的生产性能.最后,根据劳动力分配实验结果总结分配策略,为该系统的生产运行提供决策支持.

关键词：生产系统返工生产伯努利机器瞬态分析

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击剑运动员体能特征及训练方法分析

当代体育科技 2024年第11期14卷 25-28页

作者：倪俊上海市宝山区少年儿童业余体育学校上海200435

击剑运动作为奥运会的传统体育项目,对运动员的技术动作要求极高,击剑运动员必须具备高水平的身体素质,才有赢得比赛的可能。为此,该文首先对击剑运动及击剑运动员的体能特征进行阐述分析,其次对击剑运动员实施体能训练的价值内涵进行分... 详细信息

击剑运动作为奥运会的传统体育项目,对运动员的技术动作要求极高,击剑运动员必须具备高水平的身体素质,才有赢得比赛的可能。为此,该文首先对击剑运动及击剑运动员的体能特征进行阐述分析,其次对击剑运动员实施体能训练的价值内涵进行分析,最后对击剑运动员实施体能训练的原则与方法进行深入探讨,以期强化击剑运动员的训练效果,提升击剑运动员的战术水平。

关键词：击剑运动员体能特征体能训练方法

阿司匹林联合不同剂量替格瑞洛对冠状动脉粥样硬化性心脏病经皮冠状动脉介入治疗术后患者心血管不良事件发生率的影响

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中国药物经济学 2024年第2期19卷 94-98页

作者：倪俊杰张妮苏州市张家港市第五人民医院药剂科江苏苏州215600

目的探讨阿司匹林联合不同剂量替格瑞洛对冠状动脉粥样硬化性心脏病患者经皮冠状动脉介入治疗(PCI)术后心血管不良事件发生率的影响。方法选取2020年9月至2022年9月于苏州市张家港市第五人民医院接受PCI手术患者220例作为研究对象,采... 详细信息

目的探讨阿司匹林联合不同剂量替格瑞洛对冠状动脉粥样硬化性心脏病患者经皮冠状动脉介入治疗(PCI)术后心血管不良事件发生率的影响。方法选取2020年9月至2022年9月于苏州市张家港市第五人民医院接受PCI手术患者220例作为研究对象,采用单双号法随机分为大剂量组及小剂量组,每组110例。小剂量组给予阿司匹林联合小剂量替格瑞洛治疗,大剂量组采用阿司匹林联合大剂量替格瑞洛治疗。比较两组患者心脏功能,包括左心室射血分数(LVEF)、左心室舒张末期内径(LVEDD)及左心室收缩末期内径(LVESD);微循环恢复情况,包括冠状动脉血流储备(CFR)、微循环阻力指数(IMR);血小板功能,包括血小板最大聚集率(MPAR)、P2Y12反应单位(PRU);心血管不良事件及出血事件发生情况。结果治疗3个月后两组LVESD、LVEDD较治疗前显著降低,LVEF显著升高,且大剂量组LVESD、LVEDD较小剂量组明显更低,LVEF较小剂量组明显更高,差异有统计学意义(P0.05);治疗1年内大剂量组出血事件发生率明显高于小剂量组(P<0.05)。结论阿司匹林联合大剂量替格瑞洛用于冠状动脉粥样硬化性心脏病PCI术后患者可有效改善心脏功能及冠状动脉血液循环,抑制血小板聚集,但出血事件发生风险较联合小剂量替格瑞洛更高,临床应根据患者具体情况选定用药剂量。

关键词：阿司匹林替格瑞洛剂量冠状动脉粥样硬化性心脏病经皮冠状动脉介入治疗心血管不良事件

民俗体育文化组织模式的创新性发展——基于福建省L村游龙灯的个案考察

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武汉体育学院学报 2024年第4期58卷 65-71页

作者：倪军涂传飞吴丽芳黄清林福建师范大学体育科学学院福建福州350117

采用田野调查法对福建省L村游龙灯组织模式的更迭进行深度考察,提炼出一种趣缘型的民俗体育文化自组织模式,这既是民俗体育文化创造性转化和创新性发展,也是民俗体育文化中国式现代化的积极探索和生动实践。研究提出“改变组织模式,保... 详细信息

采用田野调查法对福建省L村游龙灯组织模式的更迭进行深度考察,提炼出一种趣缘型的民俗体育文化自组织模式,这既是民俗体育文化创造性转化和创新性发展,也是民俗体育文化中国式现代化的积极探索和生动实践。研究提出“改变组织模式,保留核心形式和核心内涵”的民俗体育文化中国式现代化发展路径,这可为具有相似资源禀赋的民俗体育文化提供一种可能的现代化路径选择。最后,从理论上揭示了这种新型组织模式的运行机制,即该组织模式在情感动员机制、合法性机制、技术整合机制和主体内生机制共同作用下生成。

关键词：民俗体育文化趣缘型自组织模式创新性发展运行机制发展路径

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