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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2959-2971页

作者： Yin-yi LUO Hao-zhang LIANG ping ZHANG Lei HAN Qian ZHANG Li-dan LIU Zhi-wei LUO Tian-xiang NING An-xian LU School of Materials Science and Engineering Central South UniversityChangsha 410083China School of Materials Science and Engineering Jiangxi University of Science and TechnologyGanzhou 341000China

Li1.5Ga0.5Ti1.5(PO4)3(LGTP)is recognized as a promising solid electrolyte material for lithium *** this work,LGTP solid electrolyte materials were prepared under different process conditions to explore the effects of sintering temperature and holding time on relative density,phase composition,microstructure,bulk conductivity,and total *** the impedance test under frequency of 1-10~6 Hz,the bulk conductivity of the samples increased with increasing sintering temperature,and the total conductivity first increased and then *** results showed that the average grain size in the ceramics was controlled by the sintering temperature,which increased from(0.54±0.01)μm to(1.21±0.01)μm when the temperature changed from 750 to 950°*** relative density of the ceramics increased and then decreased with increasing temperature as the porosity *** holding time had little effect on the grain size growth or sample density,but an extended holding time resulted in crack generation that served to reduce the conductivity of the solid electrolyte.

关键词： sintering temperature holding time conductivity cracks solid-state electrolyte

急性电刺激疑核对TNBS诱导的IBD大鼠IL-6 mRNA表达的影响

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世界华人消化杂志 2009年第25期17卷 2566-2570页

作者：袁川评王玮母连志杨占清王贤平商秀玲姜艳福张峰张雪莉刘冬柳巨雄吉林大学畜牧兽医学院吉林省长春市130062

目的:探讨疑核对炎症性肠病(inflammatory bowel disease,IBD)相关细胞因子IL-6的调控作用,以及在IBD发生发展过程中发挥的作用.方法:三硝基苯磺酸(TNBS)诱导IBD大鼠动物模型,采用脑立体定位技术和电生理方法,应用Real-time PCR方法来... 详细信息

目的:探讨疑核对炎症性肠病(inflammatory bowel disease,IBD)相关细胞因子IL-6的调控作用,以及在IBD发生发展过程中发挥的作用.方法:三硝基苯磺酸(TNBS)诱导IBD大鼠动物模型,采用脑立体定位技术和电生理方法,应用Real-time PCR方法来检测急性电刺激疑核前后IBD大鼠结肠、胸腺、脾脏、外周血淋巴细胞中IL-6mRNA表达水平的变化.结果:经急性电刺激疑核后,IBD模型大鼠结肠、胸腺、脾脏及外周血淋巴细胞中IL-6的mRNA转录水平均显著升高(3.26E-02±5.83E-03vs5.12E-03±6.86E-04,5.52E-02±9.56E-03vs2.04E-02±3.58E-03,3.42E-02±7.19E-03vs2.91E-03±3.41E-04,8.12E-03±4.24E-04vs3.74E-03±5.73E-04,均P0.05).结论:疑核对IBD大鼠相关细胞因子IL-6具有一定的调控作用,且以正调控作用为主,并且在IBD发生发展过程中可能发挥着重要的作用.

关键词：电刺激疑核炎症性肠病白介素6

智慧图书馆建设中混合式智慧学习空间的构建研究

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现代教育技术 2024年第4期34卷 112-121页

作者：柯和平龚自振谢海先深圳职业技术大学图书馆广东深圳518055

随着智慧图书馆建设的深入,智慧学习空间建设已然成为重中之重。之前诸多专家学者研究过智慧学习空间的建设,其研究成果至今仍有指导意义,但基于智慧图书馆视角,从具象的智慧服务场景和学习观的角度来构建智慧学习空间的研究较少。为此... 详细信息

随着智慧图书馆建设的深入,智慧学习空间建设已然成为重中之重。之前诸多专家学者研究过智慧学习空间的建设,其研究成果至今仍有指导意义,但基于智慧图书馆视角,从具象的智慧服务场景和学习观的角度来构建智慧学习空间的研究较少。为此,文章首先提出了贴近用户需求的基于用户画像技术的智慧图书馆系统模型,并强调混合式智慧学习空间的构建是智慧图书馆建设的重点。随后,文章论述了混合式智慧学习空间的设计原则,并较为具体地阐述了实体智慧学习空间和虚拟智慧学习空间的布局设计、功能模块与建设思路等,以期对智慧图书馆建设中混合式智慧学习空间的建设提供指导。

关键词：智慧图书馆智慧服务智慧应用系统混合式智慧学习空间

Corrigendum to"Crystal structure of RNA helicase from Saint Louis encephalitis virus and discovery of its inhibitors"[Genes Dis 10(2023)389-392]

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Genes & Diseases 2024年第3期11卷 484-484页

作者： De-ping wang Fang-Ying Jiang xian-Yan Zeng Yu-Jie Liu Rong Zhao Mei-Yue wang Jing Luo Chen Chen Yong Zhu Ji-Min Cao Key Laboratory of Cellular Physiology at Shanxi Medical University Ministry of Educationand the Department of PhysiologyShanxi Medical UniversityTaiyuanShanxi 030001China College of Life Sciences Chongqing Medical UniversityChongqing 400016China Department of Biochemistry and Molecular Biology School of Basic Medical SciencesTianjin Medical UniversityTianjin300070China Department of Rheumatology The Second Hospital of Shanxi Medical UniversityTaiyuanShanxi 030001China

We're very sorry for missing a funding program in funding ***,we would like to add this program:The Natural Science Foundation of Tianjin(China)(No.21JCQNJCO1890)from Tianjin Science and Technology in the first *** au... 详细信息

关键词： section. Tianjin funding

A method for classifying orbits near asteroids

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Acta Mechanica Sinica 2014年第3期30卷 316-325页

作者： xian-Yu wang Sheng-ping Gong Jun-Feng Li Department of Aerospace Engineering Tsinghua University

A method for classifying orbits near asteroids under a polyhedral gravitational field is presented, and may serve as a valuable reference for spacecraft orbit design for asteroid exploration. The orbital dynamics near aster- oids are very complex. According to the variation in orbit characteristics after being affected by gravitational perturbation during the periapsis passage, orbits near an as- teroid can be classified into 9 categories：（1） surrounding- to-surrounding, （2） surrounding-to-surface, （3） surrounding- to-infinity, （4） infinity-to-infinity, （5） infinity-to-surface, （6） infinity-to-surrounding, （7） surface-to-surface, （8） surface- to-surrounding, and （9） surface-to- infinity. Assume that the orbital elements are constant near the periapsis, the gravitation potential is expanded into a harmonic series. Then, the influence of the gravitational perturbation on the orbit is studied analytically. The styles of orbits are dependent on the argument of periapsis, the periapsis radius, and the periapsis velocity. Given the argument of periapsis, the orbital energy before and after perturbation can be derived according to the periapsis radius and the periapsis velocity. Simulations have been performed for orbits in the gravitational field of 216 Kleopatra. The numerical results are well consistent with analytic predictions.

关键词： Asteroid. Orbital classification 216 Kleopatra-Orbit prediction Polyhedral gravitational field

Hydration process in Portland cement blended with activated coal gangue

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2011年第7期12卷 503-510页

作者： xian-ping LIU Pei-ming wang Min-ju DING Key Laboratory of Advanced Civil Engineering Materials (Tong/i University) Ministry of Education Shanghai 201804 China State Key Laboratory Breeding Base of Crime Scene Evidence Shanghai 200083 China

This paper deals with the hydration of a blend of Portland cement and activated coal gangue in order to determine the relationship between the degree of hydration and compressive strength *** hydration process was investigated by various means:isothermal calorimetry,thermal analysis,non-evaporable water measurement,and X-ray diffraction *** results show that the activated coal gangue is a pozzolanic material that contributes to the hydration of the cement *** pozzolanic reaction occurs over a period of between 7 and 90 d,consuming portlandite and forming both crystal hydrates and ill-crystallized calcium silicate *** hydrates are similar to those found in pure Portland *** results show that if activated coal gangue is substituted for cement at up to 30%(w/w),it does not significantly affect the final compressive strength of the blend.A long-term compressive strength improvement can in fact be achieved by using activated coal gangue as a sup-plementary cementing *** relationship between compressive strength and degree of hydration for both pure Portland cement and blended cement can be described with the same ***,the parameters are different since blended cement produces fewer calcium silicate hydrates than pure Portland cement at the same degree of hydration.

关键词： Activated coal gangue Portland cement Blended cement Hydration Strength

The regulation of protein translation and its implications for cancer

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Signal Transduction and Targeted Therapy 2021年第3期6卷 734-742页

作者： ping Song Fan Yang Hongchuan Jin xian wang Department of Medical Oncology Cancer Institute of Zhejiang UniversitySir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiangChina Department of Hepatobiliary and Pancreatic Surgery First Affiliated HospitalZhejiang University School of MedicineHangzhouZhejiangChina Key Lab of Biotherapy in Zhejiang Sir Run Run Shaw HospitalZhejiang University School of MedicineHangzhouZhejiangChina

In addition to the deregulation of gene transcriptions and post-translational protein modifications,the aberrant translation from,mRNAs to proteins plays an important role in the pathogenesis of various *** mRNA translation are expected to become potential approaches for anticancer *** translation is affected by many factors including translation initiation factors and RNA-binding ***,modifications of mRNAs mainly N6-methyladenine(m6A)modification and noncoding RNAs,such as microRNAs and long noncoding RNAs are *** this review,we generally summarized the recent advances on the regulation of protein translation by the interplay between mRNA modifications and *** doing so,we hope this review could offer some hints for the development of novel approaches in precision therapy of human cancers.

关键词： translation such summarized

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高速冲击波下的高温空气辐射光谱研究

光谱学与光谱分析 2024年第10期44卷 2739-2744页

作者：唐维鑫丁涛李东鲜张昌华李萍四川大学原子与分子物理研究所四川成都610065

飞行器再入地球大气层过程中,高速飞行器头部的温度可达到10000 K以上导致飞行器气动性能的变化。空气的辐射加热是飞行器表面传热的主要来源之一,对高速冲击波下的空气辐射光谱进行测量研究,是研究超高速飞行器飞行过程中辐射效应和动... 详细信息

飞行器再入地球大气层过程中,高速飞行器头部的温度可达到10000 K以上导致飞行器气动性能的变化。空气的辐射加热是飞行器表面传热的主要来源之一,对高速冲击波下的空气辐射光谱进行测量研究,是研究超高速飞行器飞行过程中辐射效应和动力学行为的重要基础。目前高温空气辐射光谱的测量数据依旧较少,还需要大量的实验数据对计算模型进行改进优化。利用氢氧爆轰激波管结合瞬态光谱测量系统获得了速度在3259~8218m·s-1下高温空气在紫外-可见区的辐射光谱,并对典型高温空气辐射光谱进行了特征光谱的光谱识别和模拟,模拟结果和实验结果吻合较好,验证了光谱识别的准确性和可靠性;同时探究了激波速度对于高温空气辐射特性的影响,并对特征光谱进行了动力学行为分析。结果表明,在波长225~675 nm范围内,特征光谱主要存在于波长小于500 nm的区域;不同速度下的辐射光谱中存在不同的特征光谱,通过光谱识别后发现随着激波速度的增加,先后出现OH(A-X)、NO(γ,ε,δ)、NH(A-X)、N_(2)(C-B)、N_(2)^(+)(B-X)和Hα等特征光谱,获得了辐射特性随激波速度的变化情况。还根据辐射光强度随时间变化曲线获得了波后空气激发的弛豫时间,随着速度的增加,弛豫时间在逐渐缩短,与速度近似呈现指数关系。研究了激波速度对高温空气辐射特性的影响,研究结果为飞行器热防护设计和超高声速再入大气层过程的计算模型的验证优化提供实验数据和参考。

关键词：高温空气辐射光谱弛豫时间激波管动力学分析

高校思政课推进红色文化育人数字化转型的价值意蕴、原则机制与实践遵循

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井冈山大学学报（社会科学版） 2024年第1期45卷 56-62页

作者：徐功献王兴平赣南师范大学中国共产党革命精神与文化资源研究中心江西赣州341000

红色文化育人数字化是在数字技术快速发展的背景下形成的一种新范式,为开辟红色文化育人新进路提供了全方位、多层次的视角。红色文化育人数字化转型呈现的育人新形态,对新时代高校思政课的建设和主流网络价值观的培育有着深刻的价值意... 详细信息

红色文化育人数字化是在数字技术快速发展的背景下形成的一种新范式,为开辟红色文化育人新进路提供了全方位、多层次的视角。红色文化育人数字化转型呈现的育人新形态,对新时代高校思政课的建设和主流网络价值观的培育有着深刻的价值意蕴。必须从战略高度、理论深度和实践广度等方面强化高校思政课对红色文化育人数字化转型的推动作用,坚持网络课堂与数字媒体相统一的育人模式、网络话语与生活话语相交融的话语表达和视频音频与文本叙事相结合的内容呈现。

关键词：高校思政课红色文化育人数字化转型

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改性赤泥负载Pt催化剂催化氧化甲苯的性能

中国环境科学 2024年第3期44卷 1244-1252页

作者：方宏萍梁文俊马琛马连刚李桂贤贵州理工学院资源与环境工程学院贵州贵阳550003 北京工业大学环境与生命学部区域大气复合污染防治北京市重点实验室北京100124

以改性赤泥为载体,采用浸渍方法制备低成本改性赤泥(MRM)负载Pt催化剂,并探究Pt含量对Pt/MRM催化剂催化氧化甲苯活性影响.结果表明0.4Pt/MRM表现出最佳的催化活性,在230℃时甲苯转化率为100%.当空速高达120000h^(-1)时0.4Pt/MRM催化剂... 详细信息

以改性赤泥为载体,采用浸渍方法制备低成本改性赤泥(MRM)负载Pt催化剂,并探究Pt含量对Pt/MRM催化剂催化氧化甲苯活性影响.结果表明0.4Pt/MRM表现出最佳的催化活性,在230℃时甲苯转化率为100%.当空速高达120000h^(-1)时0.4Pt/MRM催化剂依然能保持着较高的催化活性.当甲苯进口浓度为5000mg/m3时仍可以有效氧化甲苯.采用XRD、FT-IR、BET、H2-TPR和O2-TPD等手段进行表征测试分析发现,MRM的比表面积较RM大幅度提高,使MRM能够更好分散活性组分Pt,成为合适的活性组分Pt的催化剂载体.同时所制备的x Pt/MRM催化剂具有较高的比表面积和良好的孔结构.改性赤泥中Fe_(2)O_(3)与活性组分Pt物种相互作用,使催化剂的总氧解吸量增大,提高了催化剂表面氧的迁移率,从而提高了催化效率.

关键词：改性赤泥 Pt 催化燃烧甲苯