Results 31 to 40 of about 23,991 (132)
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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Zhejiang Daxue xuebao. Lixue ban, 2022 运用锥上的不动点指数理论，讨论了格林函数变号时的二阶离散周期边值问题当λb(t)≡1时，该问题存在正解；当b：[1，n]Z→R+时，该问题不存在正解，其中f∈C(R+，R+)，k为满足的常数，λ为参数，，R+：=[0，∞)。
HUWenfeng(胡文丰) +1 more
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The Impact of AI‐Assisted L2 Learning on Learners’ Emotions: A Meta‐Analysis
International Journal of Applied Linguistics, EarlyView.ABSTRACT The scope of research on AI‐assisted second/foreign language (L2/FL) learning has expanded beyond learning outcomes to focus on learners’ emotional experiences. Despite their proliferation, existing empirical findings are inconsistent, and few studies have systematically synthesized the impacts of AI‐assisted L2 learning on learners’ emotional
Jiaqi Jing +4 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT In this study, control–value theory (CVT) was used to investigate how students’ perceptions of the classroom environment shape their anxiety in the context of English as a foreign language (EFL) learning through the mediating effects of control and intrinsic value appraisals.
Quan Qian, Xianhan Huang
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四川大学学报. 自然科学版, 1979 关于丢番图方程x4-Dy2=1,D>0,且不是平方数,（1）Ljunggren,Cohn和本文作者都有过不少工作,现简述如下:1.1942年,Ljunggren证明了丢番图方程（1）最多只有二组正整数解（x,y）。2.1966年,Ljunggren证明了,当D=ρ是一个奇素数时,则丢番图方程（1）在ρ≠5,29时,没有正整数解。在ρ=5时,仅有正整数解x=3,y=4,在ρ=29时,仅有正整数解x=99,y=1820。
柯召, 孙琦
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Gongye shui chuli, 2021 采用正交试验法研究不同电极、电压、电流对电化学去除污水中磷的影响。结果表明：磷的去除率随电压的增加而增大，电流的影响不显著。对于磷质量浓度为0.500 mg/L的中水，最佳电解条件为：铁作正极、铝作负极，电压25 V，电流0.5 A，电解时间40 min，磷去除率为96.0%。电解磷质量浓度为12.97 mg/L的废水，最佳电解条件为：铁作正极、铝作负极，电压30 V，电流1 A，电解时间为60 min，磷去除率为96.77%以上。处理后水中磷的浓度可达到国家排放标准和回用要求。
程水林 +5 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Second/foreign language (L2) learning is not solely a cognitive/linguistic acquisition process but includes mixed emotional experiences. Understanding how these emotional experiences relate to resilience could help our understanding of how learners navigate fluctuations in emotions when learning an L2.
Xinjie Chen +5 more
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AI foundation models in plant biology
New Phytologist, EarlyView.Foundation models decode genomes, engineer proteins, phenotype crops, and drive AI agents across plant biology. This figure was created in BioRender (BioRender.com/xcmmkel). Summary Rapid technological progress has enabled plant biologists to accumulate unprecedented volumes of multi‐scale, multi‐modal data, yet this abundance of data has intensified ...
Haopeng Yu
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四川大学学报. 自然科学版, 2000 推广了通常的半群的强半格分解的定义 ,得到 ρG 强半格的定义 .并用 ρG 强半格分解研究了 Green关系H 分别是正则带同余、右 (左 )拟正规带同余和正规带同余的超富足半群的半格分解问题 .
孔祥智
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Zhejiang Daxue xuebao. Lixue ban, 2017 应用Dancer全局分歧理论，研究奇异边值问题正解的存在性和多解性，其中f：[0，1]×[0，∞）→[0，∞）连续.给出了关于此类问题正解存在的充分条件，该充分条件与相应线性问题的第1个特征值有关，且所涉及的值是最优的.
YANDongming(闫东明)
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