Results 61 to 70 of about 489,650 (137)
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
wiley +1 more source
Fushe yanjiu yu fushe gongyi xuebao为探索绿色、高效降解枸杞中农药残留的方法，提高枸杞产品质量，本研究采用高能电子束辐照的方式处理啶虫脒、吡虫啉、毒死蜱、克百威、炔螨特5种农药污染的枸杞干果样品，利用超高效液相色谱质谱联用法检测辐照前后样品中农药残留的含量，同时探究不同含水率对辐照降解农药的影响。结果表明，当吸收剂量逐渐升高时，5种农药各自的最高降解率在12.9%~41.3%范围内，其中，啶虫脒在8 kGy时，降解率最高，达到41.3%，同一吸收剂量下，枸杞干果中啶虫脒含量越低，其降解率越高。吡虫啉、毒死蜱及克百威在4 ...
朱 捷, 田 珅, 姚 晓瑜, 何 微
doaj +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT With the increasing number of Chinese international students in Australian universities, intercultural competence has become a critical factor influencing their interactions with Australian tutors in university classroom settings. Existing research often examines students’ intercultural competence from a single‐method or single‐perspective ...
Jiangyu Han, Linda Tsung
wiley +1 more source
UPLC测定食用油中的3种香兰素类物质含量Determination of three vanillin compounds in edible oil by UPLC
Zhongguo youzhi为解决现有检测方法存在前处理净化不完全、不彻底的情况，建立了超高效液相色谱（UPLC）测定食用油中香兰素、甲基香兰素和乙基香兰素含量的分析方法。用乙腈提取食用油中目标物，以乙腈饱和的正己烷萃取净化，冷冻分层后，再经Oasis PRiME HLB固相萃取柱净化，采用C18色谱柱分离，以0.5%甲酸水溶液-乙腈为流动相进行UPLC测定，外标法定量。结果表明：3种香兰素类物质在0.1~100.0 mg/L范围内线性关系良好，相关系数大于0.999，检出限均为0.03 mg/kg，定量限均为0.1 mg/kg ...
孟繁磊，张慧，范宏，谭莉，宋志峰 MENG Fanlei, ZHANG Hui, FAN Hong, TAN Li, SONG Zhifeng
doaj +1 more source
The Effects of Gen‐AI on Situated and Future‐Driven Academic Writing Motivation
International Journal of Applied Linguistics, EarlyView.ABSTRACT Despite the increasing use of Generative Artificial Intelligence (Gen‐AI) in education, there is still a significant gap in understanding its effects on the situated‐ and future‐driven motivation in academic writing. This longitudinal design‐based research sought to explore variations in academic writing motivation of 110 Chinese university ...
Xiao Hu +3 more
wiley +1 more source
Exploring English Language Learners’ Vocabulary Knowledge and Usage When Speaking
International Journal of Applied Linguistics, EarlyView.ABSTRACT Vocabulary forms a fundamental component of speaking ability, as it enables speakers to convey meaning accurately, fluently, and effectively. Although the relationship between vocabulary and speaking has been investigated to some extent, gaps remain in understanding the link between learners’ vocabulary knowledge and their speaking proficiency,
Junyan Guo, Martin East
wiley +1 more source
, 2004 本发明公开一种在线微量氧含量测量方法及专用传感器。采用Wheatstone电桥为测量桥路，测量样品时，将反应池恒温在反应温度，先让流量恒定的含氧样品气流过反应池，调节电桥平衡；再在反应池之前将纯氢气加入到样品气中，样品气在流经测量池时，测量池内催化剂催化氢气和氧气反应，反应放出的热量引起测量池内温度改变，温度变化引起电桥的测量臂热敏电阻的阻值改变，改变了电桥平衡，导致电桥产生响应信号输出；其传感器采用了直通填充床式结构，包括测量电桥、测量池、参比池等，热敏电阻构成电桥的测量臂和参比臂 ...
谭峰, 关亚风
core
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
wiley +1 more source
, 2006 研究了用介观量子点接触（QPC）对单电子两态和多态系统的量子测量问题.发现,在任意测量电压下,该测量问题不能用标准的Lindblad量子主方程描述.考虑了测量仪器和被测系统之间的能量交换对细致平衡关系的影响,对该问题提供了一个恰当的理论描述 ...
胡学宁, 李新奇
core