Results 31 to 40 of about 1,851,098 (186)

催化氧化处理磨矿含砷废水的工程试验

open access: yesGongye shui chuli, 2014
磨矿工艺产生的废水中含有砷和COD等,不能直接进入氰化工艺阶段,需进行处理。分别采用活性炭静态吸附法和空气-活性炭催化氧化法对磨矿含砷废水进行了处理,研究了2种方法的处理效果及影响因素。结果表明,活性炭静态吸附法对水中总砷的吸附能力差,处理出水不能达标排放;而单一的空气-活性炭催化氧化法处理效果也不佳,但经酸化预处理后,处理出水中各污染物浓度均达到排放标准的要求。
范荣桂   +4 more
doaj   +2 more sources

Optimizing biodiversity offsetting for habitat succession and colonization dynamics

open access: yesConservation Biology, EarlyView.
Abstract Biodiversity offsetting aims to compensate for ecological losses from development through conservation and restoration. However, its long‐term outcomes under repeated impact–offset cycles remain uncertain. Using a conceptual forest succession model, we evaluated how offset outcomes are affected by interactions among compensation scale ...
Konstans Wells   +4 more
wiley   +1 more source

电化学高级氧化技术再生活性炭研究进展

open access: yesGongye shui chuli
传统电化学技术再生吸附饱和活性炭具有再生效率高、活性炭无质量损失的优点,但其存在着矿化效率低、生成毒理性副产物、能耗高等缺陷。电化学高级氧化(E-AOP)再生技术能有效克服传统电化学再生存在的问题。简述了传统电化学再生活性炭再生效能及机理,分析了操作参数(电流、电解质种类及浓度、再生位置、阳极材料等)对解吸-吸附平衡和污染物矿化效能的影响。总结了3类E-AOP再生技术(电Fenton再生技术、电活化臭氧再生技术、电活化过硫酸盐再生技术)在活性炭再生过程中的作用机制与应用 ...
刘臻   +6 more
doaj   +2 more sources

Mechanism calculation on the decomposition of 1, 1-dimethyl-1, 2, 2, 2-tetrachlorosilane catalized by AlCl3(AlCl3催化1,1-二甲基-1,2,2,2-四氯二硅烷裂解机理的计算)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2011
采用密度泛函(B3LYP)及二级微扰(MP2)方法对AlCl3催化1,1-二甲基-1,2,2,2-四氯二硅烷裂解反应的机理进行了计算.结果表明,该二硅烷在三氯化铝催化剂作用下可以同时按2种通道进行裂解.裂解反应分3步进行,通道1的速控步为第3步,其活化能为241.656 kJ • mol-1.通道2的速控步为第1步,其活化能为250.227 kJ• mol-1.从速控步的活化能可知,2种反应通道进行的难易程度相差不大.裂解反应为放热反应,反应的理论产率较高.
XUWen-yuan(徐文媛)   +5 more
doaj   +1 more source

Learning Styles, Engagement and Anxiety in AI‐Mediated Writing: A Multimodal Feedback Study

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT Artificial intelligence (AI) tools now permeate English academic writing. However, evidence on how feedback modalities align with student differences and with psychological mechanisms remains limited. Prior work often reduced learning styles to simple matches with delivery modes and treated learning engagement and writing anxiety as peripheral.
Yi Ren   +3 more
wiley   +1 more source

彰化師大於5月6日舉辦「租屋博覽會」 [PDF]

open access: yes, 2015
[[abstract]]為了讓學生瞭解校外租屋資訊,提供多樣化的租屋選擇,並與房東直接雙向溝通,彰化師大特別於5月6日中午十二時,在進德校區椰林大道舉辦「租屋博覽會」,希望建構起學生與房東之間的「雙贏」橋樑。實際上,這亦是本校親近社區民眾的最佳展現。 本校自97年於彰化地區率先辦理「租屋博覽會」後,今年已是連續第三年辦理;藉由前兩年的活動宣傳,再加上積極與房東拜訪、溝通,今年到現場參加活動設攤及分送傳單的房東人數超過40位以上。不但讓學生能與房東當面溝通、提供更多租屋選擇 ...
國立彰化師範大學
core  

基于修正Cole-Cole模型的氧化锌压敏电阻老化状态评估

open access: yesGaoya dianqi, 2020
为了将频域介电响应法(FDS)用于氧化锌压敏电阻老化状态的无损检测,在实验室环境下对氧化锌压敏电阻进行冲击老化试验,测量其介电频谱,并引入了带直流电导的多驰豫Cole-Cole模型拟合分析氧化锌压敏电阻的介电频谱。通过双驰豫Cole-Cole模型拟合常温下的介电谱发现,其中存在α驰豫过程和β驰豫过程,其对应的活化能约为0.68 eV和0.34 eV,对应着非本征晶间相缺陷驰豫和本征氧空位缺陷驰豫,α驰豫强度Δεα随冲击次数的增加而增强,而β驰豫过程不受冲击老化的影响;在拟合高温下(393 K ...
李春茂   +6 more
doaj  

Cantonese (Dis)investment by Cross‐Border Postgraduates in Hong Kong: Negotiating Competing Capitals and Multiple Identities Among Neoliberal Subjects

open access: yesInternational Journal of Applied Linguistics, EarlyView.
ABSTRACT One key strategy that local universities and the government of Hong Kong have adopted in recent years is attracting more students from Chinese Mainland to study at Hong Kong's higher education institutions and contribute to society after graduation.
Lingnan Zhang, Yue Peng
wiley   +1 more source

「卓越彰師 40有成」國立彰化師範大學40週年校慶月系列活動正式開跑! [PDF]

open access: yes, 2015
[[abstract]]彰化師大即將歡度40週年校慶,為了分享本校40年來卓然有成的豐碩成果暨連續6年獲得教育部「教學卓越計畫」獎勵的喜悅,今年擴大辦理將10月訂為「校慶月」,規劃一系列豐富多元又精采的活動,期待能以多元且創新的精神,展現卓越彰師的風貌,並以穩健踏實的步伐持續邁向下一個40年。   首先10月3日中午12時由芳苑國中舞龍隊演出「祥龍獻瑞」,祝福彰師校運昌隆宛如「飛龍在天」卓越出眾。並由副校長、彰化縣政府黃機要秘書、彰化市邱市長與學生代表一同開鑼,象徵彰化師大師生同心 ...
國立彰化師範大學
core  

Co‐Teaching in a Virtual Intensive Study Language Programme: Insights From Team Ethnography

open access: yesInternational 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

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