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Influences of soil moisture and salt content on loess shear strength in the Xining Basin, northeastern qinghai-Tibet Plateau

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Journal of Mountain Science 2019年第5期16卷 1184-1197页

作者： FU Jiang-tao HU Xia-song LI Xi-lai YU Dong-mei LIU Ya-bin yang you-qing QI Zhao-xin LI Shu-xia Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources Qinghai Institute of Salt Lakes Chinese Academy of Sciences qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes University of Chinese Academy of Sciences Department of Geological Engineering Qinghai University College of Agriculture and Animal Husbandry Qinghai University

Moisture and salt content of soil are the two predominant factors influencing its shear strength. This study aims to investigate the effects of these two factors on shear strength behavior of loess in the Xining Basin of Northeast qinghai-Tibet Plateau, where such geological hazards as soil erosion, landslides collapse and debris flows are widespread due to the highly erodible loess. Salinized loess soil collected from the test site was desalinized through salt-leaching in the laboratory. The desalinized and oven-dried loess samples were also artificially moisturized and salinized in order to examine how soil salinity affects its shear strength at different moisture levels. Soil samples prepared in different ways(moisturizing, salt-leaching, and salinized) were measured to determine soil cohesion and internal friction angle. The results show that salt-leaching up to 18 rounds almost completely removed the salt content and considerably changed the physical components of loess, but the soil type remained unchanged. As salt content increases from 0.00% to 12.00%, both the cohesion and internal friction angle exhibit an initial decrease and then increase with salt content. As moisture content is 12.00%, the salt content threshold value for both cohesion and internal friction angle is identified as 3.00%. As the moisture content rises to 16.0% and 20.00%, the salt content threshold value for cohesion is still 6.00%, but 3.00% for internal friction angle. At these thresholds soil shear strength is the lowest, below which it is inversely related to soil salinity. Beyond the thresholds, however, the relationship is positive. Dissimilar to salinity, soil moisture content exerts an adverse effect on shear strength of loess. The findings of this study can provide a valuable guidance on stabilizing the engineering properties of salinized loess to prevent slope failures during heavy rainfall events.

关键词： Salinized loess Desalinized loess Salt-leaching Shear strength indices Moisture content Salt content

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巴黎、波德莱尔与现代性——论本雅明对波德莱尔诗歌的日常生活内涵之阐释

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兰州大学学报（社会科学版） 2012年第6期40卷 14-19页

作者：杨有庆兰州交通大学文学与国际汉学院甘肃兰州730070

本雅明作为空间批评的先驱,关于巴黎与波德莱尔诗歌互文性关系的阐释对其后的城市研究影响巨大。他通过对超现实主义的研究获得了某种世俗启迪,认为对其解读必须与巴黎城市景观结合起来。他发现了城市化作为资本主义现代性进程的物质化... 详细信息

本雅明作为空间批评的先驱,关于巴黎与波德莱尔诗歌互文性关系的阐释对其后的城市研究影响巨大。他通过对超现实主义的研究获得了某种世俗启迪,认为对其解读必须与巴黎城市景观结合起来。他发现了城市化作为资本主义现代性进程的物质化向度的历史意义,将已经被取代的拱廊、工业建筑及广告等物质性历史"垃圾"与现代主义文学开创者波德莱尔的诗歌联系起来,研究城市日常生活与文学文本的辨证关系及蕴涵着现代性震惊体验的互文表述。波德莱尔的诗歌被他视做一种现代城市的辩证意象,通过解读其作为诗性事物的商品意象来探究19世纪城市生活各种体验,并发展出一种建立在由资本主义过时商品构成的废墟之上的乌托邦美学。

关键词：瓦尔特·本雅明波德莱尔巴黎日常生活震惊体验现代性

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詹姆逊诗学中的空间、文学与资本主义

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华中科技大学学报（社会科学版） 2015年第6期29卷 16-21页

作者：杨有庆兰州交通大学文学院甘肃兰州730070

詹姆逊认为资本主义是组织人类经验和文化的最具有能动性的要素,它的不断扩张使人们在心理经验和语言文化上逐渐被空间范畴所支配。文学作品在一定程度上表征了这种心理经验和语言文化的变迁以及资本主义本身的危机与矛盾。他从历史的... 详细信息

詹姆逊认为资本主义是组织人类经验和文化的最具有能动性的要素,它的不断扩张使人们在心理经验和语言文化上逐渐被空间范畴所支配。文学作品在一定程度上表征了这种心理经验和语言文化的变迁以及资本主义本身的危机与矛盾。他从历史的维度切入将文学形式与资本主义在全球的扩张实践联系起来,把小说、传奇与寓言等三种文类和资本主义发展的古典时期、帝国主义时代与全球化时代相互勾连,从政治的绝对视域出发揭示了隐含其中的资本主义的空间危机与表征及嬗变。

关键词：诗学空间文学资本主义

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Potassium and calcium channels in different nerve cells act as therapeutic targets in neurological disorders

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Neural Regeneration Research 2025年第5期20卷 1258-1276页

作者： qing Qiu Mengting yang Danfeng Gong Haiying Liang Tingting Chen Department of Pharmacology School of PharmacyNantong UniversityNantongJiangsu ProvinceChina Jiangsu Province Key Laboratory of Inflammation and Molecular Drug Target NantongJiangsu ProvinceChina Department of Pharmacy Longyan First Affiliated Hospital of Fujian Medical UniversityLongyanFujian ProvinceChina

The central nervous system, information integration center of the body, is mainly composed of neurons and glial cells. The neuron is one of the most basic and important structural and functional units of the central nervous system, with sensory stimulation and excitation conduction functions. Astrocytes and microglia belong to the glial cell family, which is the main source of cytokines and represents the main defense system of the central nervous system. Nerve cells undergo neurotransmission or gliotransmission, which regulates neuronal activity via the ion channels, receptors, or transporters expressed on nerve cell membranes. Ion channels, composed of large transmembrane proteins, play crucial roles in maintaining nerve cell homeostasis. These channels are also important for control of the membrane potential and in the secretion of neurotransmitters. A variety of cellular functions and life activities, including functional regulation of the central nervous system, the generation and conduction of nerve excitation, the occurrence of receptor potential, heart pulsation, smooth muscle peristalsis, skeletal muscle contraction, and hormone secretion, are closely related to ion channels associated with passive transmembrane transport. Two types of ion channels in the central nervous system, potassium channels and calcium channels, are closely related to various neurological disorders, including Alzheimer's disease, Parkinson's disease, and epilepsy. Accordingly, various drugs that can affect these ion channels have been explored deeply to provide new directions for the treatment of these neurological disorders. In this review, we focus on the functions of potassium and calcium ion channels in different nerve cells and their involvement in neurological disorders such as Parkinson's disease, Alzheimer's disease, depression, epilepsy, autism, and rare disorders. We also describe several clinical drugs that target potassium or calcium channels in nerve cells and could be u

关键词： astrocytes calcium channels central nervous system extracellular ion concentration microglia neurological disorders neurons potassium channels

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干涉雷达复图像配准与干涉纹图的增强

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遥感学报 1999年第2期3卷 122-127,T001页

作者：杨清友王超中国科学院遥感应用研究所

干涉雷达复图像之间的精确匹配技术是提高雷达干涉测量精度的关键之一。首先讨论了干涉雷达复图像配准过程中所要考虑的问题，然后给出了一个切实可行的配准方法，并把该方法应用于新疆喀拉卡什ＳＩＲ＿Ｃ／Ｘ＿ＳＡＲＬ波段干涉数据处... 详细信息

干涉雷达复图像之间的精确匹配技术是提高雷达干涉测量精度的关键之一。首先讨论了干涉雷达复图像配准过程中所要考虑的问题，然后给出了一个切实可行的配准方法，并把该方法应用于新疆喀拉卡什ＳＩＲ＿Ｃ／Ｘ＿ＳＡＲＬ波段干涉数据处理。干涉雷达复图像配准之后可以生成干涉纹图，为了消除干涉纹图中的噪声，尝试了中值滤波和方向平滑两种方法。

关键词：干涉雷达配准干涉纹图图像质量高程测量

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Ideal Bi‑Based Hybrid Anode Material for Ultrafast Charging of Sodium‑Ion Batteries at Extremely Low Temperatures

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Nano-Micro Letters 2025年第3期17卷 152-167页

作者： Jie Bai Jian Hui Jia Yu Wang Chun Cheng yang qing Jiang Key Laboratory of Automobile Materials(Jilin University) Ministry of EducationSchool of Materials Science and EngineeringJilin UniversityChangchun 130022People’s Republic of China

Sodium-ion batteries have emerged as competitive substitutes for low-temperature applications due to severe capacity loss and safety concerns of lithium-ion batteries at−20°C or ***,the key capability of ultrafast charging at ultralow temperature for SIBs is rarely ***,a hybrid of Bi nanoparticles embedded in carbon nanorods is demonstrated as an ideal material to address this issue,which is synthesized via a high temperature shock *** a hybrid shows an unprecedented rate performance(237.9 mAh g^(−1)at 2 A g^(−1))at−60℃,outperforming all reported SIB anode *** with a Na_(3)V_(2)(PO_(4))_(3)cathode,the energy density of the full cell can reach to 181.9 Wh kg^(−1)at−40°*** on this work,a novel strategy of high-rate activation is proposed to enhance performances of Bi-based materials in cryogenic conditions by creating new active sites for interfacial reaction under large current.

关键词： Bi nanoparticles High temperature shock High-rate activation Ultrafast charging Low-temperature sodium-ion batteries

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Prospects on mangrove knowledge services in the smart era: From plant atlas to knowledge graphs

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Science China Earth Sciences 2025年第1期68卷 111-127页

作者： Zhi-Wei HOU Wenlong JING Cheng-Zhi QIN Ji yang qing XIA Xiaoling YIN Key Laboratory of Guangdong for Utilization of Remote Sensing and Geographical Information System Guangdong Open Laboratory of Geospatial Information Technology and Application Guangzhou Institute of Geography Guangdong Academy of Sciences Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences School of Traffic & Transportation Engineering Changsha University of Science and Technology

Mangroves are crucial to the ecological security of the Earth and human well-being. Their management, conservation, and restoration are of great importance and necessitate the support of spatio-temporal information and multidisciplinary knowledge such as biology and ecology. Traditional knowledge services such as plant atlas provide illustrated textual knowledge of mangroves. However, this kind of service is oriented to information retrieval and is incapable of effectively mining and utilizing fragmented knowledge from multi-source heterogeneous data, facing the problem of “massive data, rare knowledge”. Knowledge graphs are capable of extracting, organizing, and fusing the knowledge contained in massive data into semantic networks that can be understood and computed by computers. They provide a solution for the realization of intelligent knowledge services. Focusing on the urgent need for mangrove knowledge acquisition, formal representation, and intelligent services, this paper proposes a research prospect on mangrove knowledge graphs and knowledge services. We first analyze the similarities and differences between various domain-specific concepts of Tupu. On this basis, we define the mangrove knowledge graph as a large-scale knowledge base that integrates multi-disciplinary knowledge and spatio-temporal information with mangrove ecosystems as the core. Then, we propose a research framework for mangrove knowledge services that can realize the transformation from multi-modal data to intelligent knowledge services, including multiple research levels such as ubiquitous data sensing and aggregation, knowledge organization and graph construction, and intelligent mangrove knowledge services. Subsequently, the methods and workflow for constructing mangrove knowledge graphs are introduced. Finally, we discuss the challenges and possible future directions of mangrove knowledge services in the smart era, including the construction of a mangrove knowledge system that integra

关键词： Mangrove Tupu Knowledge graph Multi-modal Knowledge service

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益气温阳活血方对心肌梗死患者骨髓干细胞动员作用和心功能的影响

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中国中西医结合杂志 2008年第12期28卷 1078-1081页

作者：杨庆有赵立诚广州中医药大学第一临床医学院广州510405

目的观察益气温阳活血方对心肌梗死患者骨髓干细胞的动员作用及心功能的影响。方法60例急性心肌梗死患者按数字表法随机分为治疗组和对照组,每组30例,两组患者均给予标准治疗:低分子肝素钙0.4 mL皮下注射,每12 h 1次,连用7天,阿司匹林... 详细信息

目的观察益气温阳活血方对心肌梗死患者骨髓干细胞的动员作用及心功能的影响。方法60例急性心肌梗死患者按数字表法随机分为治疗组和对照组,每组30例,两组患者均给予标准治疗:低分子肝素钙0.4 mL皮下注射,每12 h 1次,连用7天,阿司匹林肠溶片0.1 g,每日1次,培哚普利片4 mg,每日1次,阿托伐他汀钙10 mg,每日1次,如无禁忌症则连续使用,治疗组加服益气温阳活血方(人参10 g黄芪15 g制附子5 g毛冬青30 g益母草10 g)每天1剂,水煎服200 mL,早晚各100 mL,连用10天,观察两组患者外周血CD_(34)^+细胞数量变化情况,在发病3周末QRS记分法预测心肌梗死面积,超声心动图检测左室射血分数(left ventricular ejection fraction,LVEF)、左室收缩末期容积指数(left ventricular end-systolic volume index,LVESVI)、左室舒张末期容积指数(left ventricular end-diastolic volume index,LVEDVI)以及室壁运动积分指数(wall motion score index,WMSI)等指标。结果治疗组第5天和第10天,外周血CD_(34)^+细胞(分别为48.26±5.74和34.18±6.70),明显高于入院即刻(20.33±6.01),也高于同时刻对照组(分别为22.45±5.31和19.89±5.93),差异有统计学意义(P<0.01)。第21天,治疗组QRS积分(2.68±0.41)和梗死面积(22.54±2.49)%比对照组[分别为3.96±0.34;(29.38±2.59)%]为低,LVEF(0.59±0.07)比对照组(0.50±0.07)显著升高,治疗组LVESVI(27.47±7.86)、LVEDVI(68.92±11.52)和WMSI(2.10±0.11)与对照组(分别为36.71±8.85;78.46±13.16;2.98±0.12)比较,差异有统计学意义(P<0.01)结论益气温阳活血方具有良好的干细胞动员作用,可以减少心肌梗死面积,改善心功能。

关键词：急性心肌梗死千细胞动员益气温阳活血方心功能

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政经混声、多元博弈的历史与现实——台湾当代电视文化现状及批评总体特征研究

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福建师范大学学报（哲学社会科学版） 2010年第2期 68-72,93页

作者：杨有庆王立新四川大学文学与新闻学院四川成都610064 重庆交通大学人文学院重庆400074

台湾电视业的发展深受当代台湾社会政治、经济与地理环境等因素影响,徘徊于以政经为主导的各种社会力量的角力中,形成了其政经混声、多元博弈的特殊风貌。台湾电视批评根据电视文化在政治与经济之间的位移可区分为三个各具差异性的历史... 详细信息

台湾电视业的发展深受当代台湾社会政治、经济与地理环境等因素影响,徘徊于以政经为主导的各种社会力量的角力中,形成了其政经混声、多元博弈的特殊风貌。台湾电视批评根据电视文化在政治与经济之间的位移可区分为三个各具差异性的历史阶段,当下其受文化转向影响,开始关注电视对日常经验的建构、性别问题以及城市空间问题等议题。因此,当代台湾电视文化与电视批评都是随着台湾社会的现代性进程而不断获得新的发展。

关键词：台湾文化台湾电视文化电视批评多元博弈交融

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空间失稳目标线阵雷达成像机理及三维重建

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宇航学报 2020年第8期41卷 1049-1057页

作者：李荣华薛豪鹏杨友庆李恒大连交通大学机械工程学院大连116028 上海航天技术研究院上海201109

利用线阵激光雷达载荷小、抗干扰能力强等优势,研究空间失稳目标动态测量技术。探究线阵激光雷达成像机理,建立空间失稳目标运动模型,提出基于双切片法的目标可测区域提取机制,实现线阵激光雷达对空间失稳目标的驻留观测扫描;以ICP(Iter... 详细信息

利用线阵激光雷达载荷小、抗干扰能力强等优势,研究空间失稳目标动态测量技术。探究线阵激光雷达成像机理,建立空间失稳目标运动模型,提出基于双切片法的目标可测区域提取机制,实现线阵激光雷达对空间失稳目标的驻留观测扫描;以ICP(Iterative closest point)配准结果为先验信息,提出逆序重建方案,建立重建点云精度以及平均密度评价机制,分析数据冗余对重建精度的影响,采用采样降维的方法进行配准重建计算,提高重建结果精度;最后进行仿真实验检验分析,实验结果表明空间目标可测部位数据提取合理准确,数据输出频率可达1 Hz,重建结果满足任务指标要求,重建点云平均密度达到19 mm,重建点云精度达到90 mm,为地面验证及在轨应用提供数据支撑和参考。

关键词：空间失稳目标雷达成像机理双切片法数据冗余重建评价

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