Results 21 to 30 of about 1,800,078 (146)
LNM材料力学性能测试中心（1）——为什么要做材料力学性能测试？
, 2013 编者按：在中国科学院“知识创新工程”的持续支持下，力学研究所的装备建设获得了长足的进展，特别是公共实验平台体系的形成为研究与开发工作铺垫了坚实的物质基础。本刊将在“漫步力学所”栏目中，陆续介绍力学所公共实验平台体系的组成、功能与应用。本期将介绍非线性力学国家实验室(LNM)公共实验平台下属的材料力学性能测试中心。 LNM材料力学性能测试中心(1)为什么要做材料力学性能测试？郇勇 王柏懿 一 ...
郇勇, 王柏懿
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Collaborative writing has attracted increasing attention in English as a Foreign Language (EFL) instruction due to its potential to enhance learners’ writing competence. However, few studies have examined the comparative effects of collaborative versus independent writing on EFL learners’ individual performance, especially in higher‐order ...
Ting Huang, Chenze Wu, Wenkang Zhang
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Vocabulary Strategy Instruction in the Argentine EFL Context: Teachers’ Perspectives and Practices
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite extensive research on vocabulary strategy instruction (VSI), little has been known about teachers’ perspectives on how it is understood and implemented in practice. This study investigated Argentinian EFL teachers’ priorities in vocabulary instruction, their perceived knowledge of learner strategies for spoken vocabulary, and factors ...
Isobel Kai‐Hui Wang, Andrew D. Cohen
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Fushe yanjiu yu fushe gongyi xuebao为快速筛查对象水体中14C的存在与否，并提供定量测量结果，采用液闪计数区域优化的方法，结合内标法确定猝灭效应下的计数效率，实现了样品中14C活度浓度的快速准确分析，探测下限为1.8 Bq/L。应用于某核药厂衰变池及周边环境水样中14C活度浓度的分析，其中3个样品活度浓度低于探测下限，其余样品活度浓度分布在38~1 332 Bq/L。自制活度浓度已知的样品验证了该方法的准确性，测量结果相对参考值最大偏差仅1.1%。
戈 立新, 韩 刚, 赵 超
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L2 Chinese Grammatical Acquisition and Processing: A Substantive and Methodological Review
International Journal of Applied Linguistics, EarlyView.ABSTRACT This study presents a systematic review of 92 empirical studies on Chinese as a second language (CSL) in grammatical processing and development, synthesizing their substantive foci and methodological characteristics. The results reveal consistent scholarly attention to cross‐linguistic topics, with less focus on features that are distinctively
Shaohua Fang, Yi Xu, Jiani He, Jia Wang
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Gaoya dianqi, 2021 断路器作为电力系统中的重要元件,有着完整的型式试验要求,其中有一项为失步关合和开断试验。GB/T 1984—2014与DL/T 402—2016中对于断路器的失步关合和开断试验有着详细的描述[1-4],这两个标准中都有对试验方式OP1免试条件的叙述,其意思均为"若进行了5%Isc临界电流试验,则OP1可以免去。"这个判据在行业中已使用了20年,随着断路器开断原理、灭弧方式以及制造工艺的进步,这一判据在实际使用中已有所不适。文中对系统工况、失步关合和开断试验及相关型式试验的试验原理、现行国内标准进行分析 ...
姜子元 +4 more
doaj
Finetuning Pre‐Trained Language Models for Automatic Assessment of English‐Chinese Interpreting
International Journal of Applied Linguistics, EarlyView.ABSTRACT Recent years have seen growing interest in leveraging pre‐trained language models (PLMs) for automatic assessment of spoken‐language performance. Contributing to this emerging line of work, the present study offers the first attempt to finetune two PLMs, GTE‐multilingual and mmBERT, for assessing English‐Chinese interpreting, using over 1700 ...
Zhaokun Jiang, Chao Han
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Policy Studies Journal, Volume 54, Issue 4, November 2026.ABSTRACT Public consultations are a cornerstone of democratic policymaking, yet the sheer volume and heterogeneity of submissions often overwhelm traditional analysis. Emerging large language models (LLMs) offer new opportunities for making sense of such data, but their performance in contexts with high linguistic and technical diversity remains ...
Edgar Mathevet, Lauriane Cailleux
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, 2004 本实用新型涉及一种柔性边界加载实验机，包括：试验机框架、三个位于试验机框架外的加压装置和压力室缸体，还包括至少一个固定在上盖板的下表面处的超声波位移测量装置，侧面包裹有乳胶膜的试样位于压力室缸体内，其侧面与压力室缸体内壁之间形成一围压压力室，该围压压力室内充满液体或气体；所述轴压活塞环放置在试样上，其外径与压力室缸体的内径相等；所述轴压加载胶囊位于轴压活塞环与上盖板之间，所述的位于实验机框架的下盖板内的平衡压活塞环通过平衡压传力杆与轴压活塞环固定连接在一起，其下方还设置一平衡压加载胶囊 ...
李世海, 张均锋, 孟祥跃
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基于改进CNN-BiLSTM模型和地磁监测数据的多时间长度GIC预测
Kongjian kexue xuebao太阳风暴在电力系统网络中驱动产生的GIC会影响电力设备和系统的安全运行, 严重时还会引发大面积停电事件. 预测电网GIC水平能够为电力系统保护措施提供重要参考, 然而对这方面的研究仍显不足. 为了解决该问题, 将卷积神经网络(CNN)与双向长短时记忆(BiLSTM)以及注意力机制相结合, 利用空间天气的相关监测信息, 提出了大规模电网GIC多时间长度的预测方法.
蓝 东亮 +6 more
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