Results 61 to 70 of about 2,057,274 (187)
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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, 2016 本发明涉及生物防治领域，尤其涉及一种茶皂素在防控海月水母中的应用。茶皂素在防控海月水母中的应用,所述茶皂素在制备防控海月水母抑制剂中的应用。本发明所述的茶皂素来源于山茶科的茶籽树种子、茎和叶提取得到的天然成分，在环境中易降解，符合生态安全的需要，其是一种天然的非离子型表面活性剂。其对海月水母碟状幼体和螅状幼体的毒性试验证明，茶皂素对海月水母碟状幼体和螅状幼体具有极强的杀灭毒性 ...
董志军, 孙婷婷
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Gongye shui chuli, 2022 碳中和背景下，污水处理厂不仅要实现水资源的可持续性，还要实现碳减排。若在污水处理过程中对污水中潜在的化学能和热能进行回收利用，则可弥补污水处理厂运行中的能量损耗，甚至达到碳中和的目标。为探明污水处理厂实现碳中和的可行性，通过对国内外污水处理厂实现碳中和案例的解读分析，总结了实现碳中和目标的实施途径和主要减排工艺，并提出了碳中和视角下我国未来污水处理厂所面临的技术挑战和研究方向。
蒋彬, 刘中亚, 陈垚, 袁绍春
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International Journal of Applied Linguistics, EarlyView.ABSTRACT In English Medium Instruction (EMI) contexts, students face simultaneous linguistic and academic demands. Although psychological capital (PsyCap) has been recognized as an important psychological resource for academic success, less is known about whether its effects depend on students’ academic English literacy (AEL).
Hao Wu, Heath Rose
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, 2006 <正>2006年10月4日,中国科学院水利部水土保持研究所院内干净整齐,绿树成荫。花团锦簇,彩旗飘扬,巨幅标语热烈而夺目,喜庆的鼓号声萦绕上空。人工模拟降雨大厅广场上更是群贤毕至,宾朋满座,中国科学院水利部水土保持研究所在这里隆重举行了建所50周年庆典。庆典大会由所党委副书记、副所长陈改学主持。刘国彬副所长首先宣读了全国人大常委会副委员长、中国科学院党组书记、院长路甬祥院士的题词和中国科学院副院长李家洋院士的贺信。所长、党委书记邵明安做了题为&ldquo ...
中国科学院水利部水土保持研究所党政办公室
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Zhejiang Daxue xuebao. Lixue ban, 2012 根据2010年春、夏两季对象山港海洋牧场示范区海域渔场调查的资料，分析了示范区海域渔业资源的时空分布、群落结构、资源密度等.调查中共有渔获物63种，其中鱼类29种、虾类19种、蟹类12种、头足类3种.无论在种类数、重量和尾数渔获量以及在重量和尾数资源密度上，夏季都明显高于春季.春、夏两季度，渔业资源平均品种重量和资源密度蟹类最高，为78.864 kg • km-2，其次是虾类、鱼类、头足类；平均品种尾数资源密度虾类最高，为2.976 5× 104 ind • km-2, 其次是鱼类、蟹类、头足类 ...
TANGFeng-hua(唐峰华) +3 more
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International Journal of Applied Linguistics, EarlyView.ABSTRACT Understanding learners’ English speaking self‐efficacy is essential for promoting effective oral communication in EFL contexts. However, variable‐centered research on English speaking self‐efficacy often overlooks heterogeneity among learners.
Cha Li, Lawrence Jun Zhang
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, 2005 本发明公开了刺五加在水产养殖中的应用。刺五加的提取物在适当剂量下,具有增强淡水或海水养殖鱼类免疫系统、特别是非特异性免疫功能的作用,可广泛性地降低养殖鱼类对各类病原性疾病的抵抗力,提高养殖成活率。此外,刺五加对鱼体还具有抗应激作用,从而增强鱼体对环境胁迫的适应能力。刺五加及其提取物是一种无毒、无害、无污染的饲料添加剂。本发明制备方法易行 ...
王文博 +3 more
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澳洲鳗鲡
Haiyang yu huzhao澳洲鳗鲡(Anguilla australis)属于洄游性鱼类，为探索其对海水的生物学耐受性特征，以澳洲鳗鲡不同生长阶段的黑仔、幼鳗和成鳗为对象，在海水条件下，开展了其耗氧率、窒息点、水温、pH、非离子氨、亚硝酸盐、盐度等生态因子的耐受性试验。结果表明，黑仔、幼鳗和成鳗的昼间与夜间耗氧率都随体质量增大而下降，但昼夜间均存在显著差异(P<0.05)。黑仔、幼鳗和成鳗的窒息点溶解氧浓度随体质量增大而下降；3~35 °C为澳洲鳗鲡海水适温范围，25~29 °C为黑仔最适生长温度，23~29 ...
侯 旗, 江 兴龙
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Plant, Cell &Environment, EarlyView.ABSTRACT Late leaf spot (LLS) is the most widespread and destructive fungal disease affecting peanut worldwide, yet relatively little is known about its genetic basis. In this study, QTL mapping using a 1327‐bin map (derived from 9533 SNP/InDel markers) and multi‐environment phenotypic data repeatedly detected two major LLS‐resistance QTLs on ...
Wenhui Cui +12 more
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