Results 51 to 60 of about 32,470 (201)
The Development and Validation of the Chinese Vocabulary Levels Test
International Journal of Applied Linguistics, EarlyView.ABSTRACT In response to the increasing need for effective Chinese vocabulary assessments, this study developed the Chinese Vocabulary Levels Test (CVLT), a test designed for intermediate‐level Chinese as a second or foreign language (CSL/FL) learners, based on the vocabulary lists (levels 4–6) from the Chinese Proficiency Grading Standards for ...
Shiwei Qi, Ailan Fu
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Gaoya dianqi, 2017 近年来,人工带电作业的局限性日渐突出,研究代替人工作业的机器人技术已经成为电力检修智能化研究的重要分支。文中对作业对象和任务进行了分析;介绍了机器人的机体构造,并基于运动学对带电作业机器人动作进行规划;阐述了该机器人系统的控制组成和软件设计。成功研制的输电线路带电紧固螺栓机器人主要由非越障移动平台、作业机械手和控制基站3部分组成,采用人机交互控制,具有视觉反馈和力反馈系统。试验和现场应用表明:紧固螺栓作业机器人运行可靠、平稳,控制方便,满足输电线路带电作业要求,能替代人工完成螺栓紧固作业 ...
李稳 +6 more
doaj
Research on Coordination for Online Travel Service Supply Chain base on profit-sharing contract model in three-level supply chain [PDF]
, 2014 近几年，国民经济保持平稳发展，居民收入持续增加，旅游需求量也越来越大，中国旅游业正处于黄金发展期。在线旅游作为旅游业的一个重要组成部分也处于蓬勃发展时期，成交量逐年上升。但由于产品同质化严重，旅游产品直接供应商直销力度加大，在线旅游企业通过低价促销手段推进移动旅游发展等原因，导致在线旅游企业虽然营业额逐年增长，但实际利润率得不到相应的增长，整个行业营收规模增长速度变慢。所以如何建立一种有效的协调机制，使在线旅游企业从单一的价格战，转变为提升整个在线旅游产业供应链的竞争力，实现供应链上各节点企业的共赢 ...
张晓凤
core
The Academic Literacy of International Postgraduate Students in Australia: A Cause for Concern?
International Journal of Applied Linguistics, EarlyView.ABSTRACT This article discusses the academic literacy challenges faced by international postgraduate students at a South Australian university and evaluates the effectiveness of existing institutional support mechanisms. Drawing on survey data, the study highlights significant difficulties in academic reading, writing, and spoken communication, with ...
Werner Botha +6 more
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Study on the Legal Mechanism of the Injury Insurance for Migrant Workers in our Construction Industry [PDF]
, 2016 随着我国经济发展水平的提高，社会保障体系渐渐引起国人的重视。工伤保险制度作为社会保障体系的重要组成部分，近年来逐渐成为社会的热点问题。自2004年《工伤保险条例》颁布以来，已经历了十年，我国的工伤保险制度也在逐年的完善之中，但是，建筑行业农民工的工伤保险状况却不尽人意，工伤保险参保率低是影响农民工工伤权益无法得到保障的关键所在。开展建筑行业农民工的工伤保险法律机制研究，对于保障建筑行业农民工工伤权益、构建和谐社会，具有重要意义。本文从我国建筑行业农民工工伤保险状况及存在的一系列问题入手 ...
杜雪芳
core
International Journal of Applied Linguistics, EarlyView.ABSTRACT While English‐medium instruction (EMI) and English for Academic Purposes (EAP) courses are designed to promote language and content learning, their prevailing English‐only approaches often undermine students’ learning motivation. Against this backdrop, translanguaging has gained recognition as an effective pedagogical practice to support ...
Yihai Wen, Fan Fang
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Effect of Benzalkonium Chloride on Corneal Epithelial Barrier Function and Possible Mechanisms of Benzalkonium Chloride Inhibiting Corneal Endothelial Gap Junction Intercellular Communication [PDF]
, 2015 第一部分：局部应用前列腺素类药物对兔角膜上皮细胞屏障功能的影响 目的：苯扎氯铵（BAK）是滴眼液中最常用的防腐剂之一，大量的临床研究发现，局部长期使用含BAK的眼部制剂会出现很多眼部不适症状。含BAK的前列腺素类药物是治疗开角性青光眼的一线药物，临床上患者往往需要长期使用，易导致眼睛干涩，结膜充血等等，然而其作用机制还不是非常清楚。紧密连接与粘着连接等构成了角膜上皮抵御外界病原微生物入侵的第一道生理屏障，对角膜正常生理功能的维持具有非常重要的作用 ...
张振豪
core
The underappreciated roles of fog and dew on vegetation and biocrusts
New Phytologist, EarlyView.Summary Fog and dew represent minor components of ecosystem water budgets in most ecosystems. However, fog and dew can play an essential role in ecosystem dynamics and are particularly important for water‐limited systems. In addition to serving as direct water inputs, fog and dew can influence microclimate and water redistribution, thereby promoting ...
Lixin Wang, Yue Li, Mengyun Sun, Na Qiao
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Malignancy-associated metabolic profiling of human glioma cell lines using 1H NMR spectroscopy [PDF]
, 2015 胶质瘤恶性转化的原因和机制不明，给临床诊疗带来极大困难。越来越多的研究表明肿瘤恶性转化与细胞代谢紊乱密切相关，但胶质瘤恶性转化相关的细胞代谢特点目前尚不清楚。因此，探寻不同恶性程度胶质瘤细胞的代谢轮廓，将有助于开发监测胶质瘤恶性进展的非入侵式生物标志物和靶向代谢通路的治疗策略。本研究收集5种不同病理级别瘤组织来源的人脑胶质瘤细胞系（CHG5／SHG44／U118／U87／U251），其中CHG5和SHG44为WHOII级来源；U118,U87和U251为WHOIV级来源。体外培养后，首先通过侵袭能力 ...
邵巍
core
Accountability in Government Use of AI: Citizen Concerns and Preferences
Public Administration, EarlyView.ABSTRACT Government adoption of AI opens the “pandora's box” of accountability, a core aspect of public value. Despite the centrality of governmental AI accountability, citizens' concerns and preferences in holding governments accountable for AI usage remain poorly understood.
Naikang Feng, Yanto Chandra
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