Results 61 to 70 of about 2,125,466 (224)

一硝基甲苯生产废水处理研究进展

open access: yesGongye shui chuli, 2004
一硝基甲苯是生产多种精细化工产品生产的中间体,工业用途广泛。其生产过程中产生大量酚类副产物,毒性大,难治理。文中综述了处理硝基酚类、硝基甲苯类物质的主要方法,包括吸附、萃取、化学氧化、化学还原和生物化学法等,并展望了甲苯硝化废水处理工业化应用的研究方向。
许雪记, 韩永忠
doaj  

Linguistic Analyses of Written Corrective Feedback for Chinese as a Second Language: ChatGPT Versus Human Teachers

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This study conducted linguistic analyses of the written corrective feedback (WCF) for Chinese as a second language (CSL) provided by chat generative pre‐trained transformer (ChatGPT) and human teachers (including preservice teachers and senior teachers).
Ling Zhang   +2 more
wiley   +1 more source

生产三苯基氯化锡钠法工艺

open access: yes, 1992
生产三苯基氯化锡钠法工艺待填
待填写
core  

荧光剂生产废水新型高效组合处理方法

open access: yesGongye shui chuli, 2015
荧光增白剂废水对人体和环境有很大危害。采用回收废酸、H2O2、石灰等廉价试剂,通过酸性净化-微波+Fenton氧化法-碱化-生物法联合方法,处理某化工厂的荧光废水,使其COD从5 480 mg/L降至75 mg/L。该方法以废治废,生产成本低,净化效果显著。
陶汶銘   +6 more
doaj  

The Emotional Valence Paradox in Social media: A Computational Linguistic Analysis of How Sentiment, Emotion, and Content Domain Predict Social Comparisons on Rednote

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This computational linguistic study analyzes 8743 Rednote posts to examine how sentiment, emotion, and content domain collectively shape social comparison dynamics on social media. We identify four key findings: (1) an emotional gradient, where upward comparison content exhibits the highest sentiment scores and downward comparison the lowest; (
Michelle Mingyue Gu   +7 more
wiley   +1 more source

Reconceptualising Motivation as Material‐Semiotic Entanglements: Translanguaging in Graduate TESOL Education

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Multilingual students in Anglophone universities often operate in survival mode. While translanguaging supports learning, critical gaps remain in understanding how translanguaging pedagogies transform and sustain motivation in English‐dominant contexts.
Melissa Jufenna Slamet, Julie Choi
wiley   +1 more source

美國經濟實質原則成文法化對稅務實務影響之探討

open access: yes, 2013
[[abstract]]「經濟實質原則」(Economic Substance Doctrine)美國稅法領域中最著名的司法原則(Judicial Doctrine)之一。自一九三五年聯邦最高法院宣判Helvering v. Gregory案以來,經濟實質原則成為法院用以否決納稅義務人的無實質經濟效果交易、卻主張有減免稅賦權利之稅務案件。雖然經濟實質原則影響稅法達七十五年之久,但畢竟還是「司法造法」下的產物,並非是經過國會所通過的成文法。蓋因法院對經濟實質原則要件及適用標準見解歧異 ...
高大法學論叢--吳德華
core  

Making Interview Multilingualism Visible: Transnational Chinese Language Teacher Identity Construction

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT This study examines multilingual practices in research interviews, focusing on English lexical insertions in Chinese‐language research interviews with teachers of Chinese in Australian secondary schools, and treating these code‐switches as analytically meaningful rather than incidental.
Chengwen Yuan, Tianwei Zhang, Gary Bonar
wiley   +1 more source

一种以菊芋为原料生物转化生产甘露醇的方法

open access: yes, 2010
本发明涉及利用一种优质果糖基生物质原料——菊芋的糖化处理工艺及以菊芋为碳源发酵生产甘露醇的菌种选择和工艺优化,1)将菊芋块茎粉碎成粗颗粒,水浸酶解6小时后过滤,上清42℃旋转蒸发浓缩,得高果糖浓度的糖化菊芋汁;2)建立高效液相色谱分析检测条件,能够同步分析发酵液底物(葡萄糖和果糖)及产物(甘露醇)的含量;3)利用不同总糖浓度的糖化菊芋汁考察了7种乳酸菌发酵产乳酸及甘露醇的生产能力,确定了一种果糖转化率高、生产强度高的乳酸菌并优化了其生产发酵条件和耐受底物的最高浓度 ...
周正   +5 more
core  

硝基苯废水处理技术研究进展

open access: yesGongye shui chuli, 2017
阐述了硝基苯废水处理中常用的单元技术,包括物理法、化学法、生物法及组合工艺,并分析各处理工艺的机理、效果和优缺点。在此基础上得出,以物理法或化学法作为预处理技术提高硝基苯废水的可生化性,再利用生物处理技术彻底矿化污染物的组合工艺将是今后硝基苯废水发展的主要方向。
孙茜茜   +5 more
doaj  

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