Results 41 to 50 of about 1,550,721 (197)
, 2006 一种含有β沸石的催化剂的活化方法。在350-600℃的温度下，使一种水含量低于0.1％(V/V)的惰性气体以100-5000毫升/(克催化剂·小时) 的空速通过催化剂床层，活化时间为0.5-10小时。经该方法活化后的含有 β沸石的催化剂，可用于苯与乙烯烷基化合成乙苯的反应，及苯与二乙苯和/或多乙苯烷基转移生成乙苯的反应，具有反应活性高的特点 ...
孙新德 +3 more
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頂新和德文教基金會與國立彰化師範大學合作舉辦「一起玩一夏～愛上好品格」營隊 [PDF]
, 2015 [[abstract]]財團法人彰化縣頂新和德文教基金會秉持「頂新情、回饋心」理念，特別成立頂新課輔班為永靖鄉弱勢家庭子弟免費課後輔導，頂新課輔班於七月十八、十九日與彰化師範大學合作舉辦「愛上好品格」營隊，讓孩子們透過活動，培養好品格。基金會提供永靖弱勢家庭子弟，一個富有人文、藝術修養氣息之園地，課輔班以品格教育為主軸，讓課輔班的孩子們除了學好功課外，更能有好品格，此次與彰師大合作，集結彰師大優秀人才與資源，共同舉辦品格營，透過營隊課程讓小朋友參與體驗、學習好品格，充實兒童暑假生活，培養課本外知識。
學生事務處課外活動指導組
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Co‐Teaching in a Virtual Intensive Study Language Programme: Insights From Team Ethnography
International Journal of Applied Linguistics, EarlyView.ABSTRACT As virtual study abroad becomes an increasingly important form of international education, little is known about how transnational teaching is organised and sustained across institutions. Using activity theory as an analytical framework and team ethnography as methodology, this study examines a virtual intensive study (VIS) programme delivered
Zhu Hua +7 more
wiley +1 more source
Zhejiang Daxue xuebao. Lixue ban, 2002 采用Percoll密度梯度离心等技术,对处于两种不同活性状态的草鱼头肾和腹腔巨噬细胞(Macrophage, Mϕ)进行了分离纯化,并对两者的生理生化代谢作了比较分析.证实活化Mϕ的体积增大, , H2O2,ACP活性和RNA、蛋白质含量显著升高,吞噬杀菌力明显增强,5′ND活性显著下降,这些变化规律与高等脊椎动物Mϕ相一致,说明鱼类和高等脊椎动物Mϕ存在相同的活化机制., H2O2, ACP, RNA,蛋白质和5′ND活性和含量以及吞噬杀菌力均可作为反映鱼类Mϕ活性水平的生理生化指标.
XIANGLi-xin(项黎新) +2 more
doaj +1 more source
, 2000 一种化学嫁接法制备高度隔离单活性中心过渡金属离子选择氧化催化剂,由载体和活性组分组成,其特征在于:单活性组分通过化学键与载体表面键合,在载体表面单层或低于单层分散。其制备方法是将催化剂载体在500～800℃焙烧4～10h;再在100～600℃间,与可挥发的含活性组分前驱体选自MCln、M(OC2H5)n、M(C5H7O2)n进行化学嫁接反应,水解、洗涤得到催化剂。本发明制备过程简单,适应工业化生产 ...
鲁继青 +4 more
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, 2016 [[abstract]]本校為迎接大一新鮮人，提升家長對學校辦學理念和發展願景的瞭解，及協助新生適應校園環境，特於104年9月5日（星期六）至9月20日（星期日）舉辦一系列新生歡迎活動。 首先是9月5日（星期六）之「新生家長日」，特別邀請家長及新生參加全校親師活動及各系親師座談。今年特別於全校親師活動首次頒發大學部新生入學獎勵，含大學部優秀學生入學獎勵、外國學生入學獎勵、運動績優入學獎勵、楊忠禮博士鼓勵優秀馬來西亞僑生入學獎勵、企業界校友獎勵彰師附工學生入學獎勵及公費生等六項約34名新生 ...
學務處課外活動指導組
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International Journal of Applied Linguistics, EarlyView.ABSTRACT This qualitative multiple case study explores multilingual postgraduate students’ academic identities through writing at an EMI university in Hong Kong, with a focus on how they gain legitimacy in knowledge‑making with their multilingual repertoires. Grounded in a poststructuralist understanding of identities as fluid and negotiated, the study
Siqi Song, Ken Lau
wiley +1 more source
, 2005 本发明涉及催化剂技术，具体地说是一种活性氧化铝催化剂及其制备方法和应用。本发明活性氧化铝催化剂的成分为：Na 0.8～0.1wt％，Fe＜0.1wt％，余量是大于99wt％纯度的氧化铝；制备方法：以氢氧化铝粉和/或一水软铝石粉为原料，将氢氧化铝粉和/或一水软水石粉与去离子水配制的硝酸溶液充分搅拌混合，然后挤条成型，再于100℃～150℃下干燥2～8小时，最后400℃～600℃焙烧3～20小时，过筛，制得成品活性氧化铝。采用本发明可以提高合成硫醚及硫醇，特别是二甲基硫醚与甲硫醇的选择性和产率 ...
孙承林 +3 more
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Off‐Task Talk to Manage Relationship Work During Student Group Work in Second Language Classrooms
International Journal of Applied Linguistics, EarlyView.ABSTRACT This paper presents a conversation analytic study on student relationship work in off‐task talk (OTT) during group work in foreign language classrooms. Often seen as disengagement from tasks, OTT's social and relational functions in student classroom group interaction and formation remain underexplored.
Yanyan Li
wiley +1 more source
International Journal of Applied Linguistics, EarlyView.ABSTRACT Self‐directed Learning (SDL) is an important skill for learners of all ages and phases of life. Generative AI facilitates self‐directed second language (L2) learning by providing interactive, personalised access to online resources. However, existing research on AI‐assisted self‐directed L2 learning focuses on adult learners in higher ...
Qing Ma +4 more
wiley +1 more source