CO32-和C12H25SO4-在Mg/Al双氢氧化物层间通道中的竞争嵌入的机制研究（英文）

通过XRD、元素分析、傅里叶转换红外光谱(FTIR),研究了CO2-3和C12H25SO-4(DS)阴离子在Mg/Al双氢氧化物层间通道中的竞争嵌入的机制.结果表明,C12H25SO-4通过合成过程中的自组装效应,可有效地插入Mg/Al双氢氧化物层间通道中,形成LDH-DS柱撑化合物.虽然CO2-3阴离子对Mg/Al双氢氧化物层板强烈的吸附力,影响C12H25SO-4进入层间通道,但是DS的空间位阻效应依然可以置换掉大部分CO2-3,而形成LDH-DS柱撑化合物.     

用空间批评理论解读哈代《无名的裘德》简

本文借助空间批评理论从空间角度对哈代的《无名的裘德》进行深入解读。《无名的裘德》这部作品当中对乡村空间、边界空间以及城市空间予以了展示,空间批评视野中的《无名的裘德》所展示的空间画面个性鲜明,本文主要利用空间批评理论,从《无名的裘德》研究中的空间概念及空间叙事、现实空间和想象空间互相交错两个角度着手,对《无名的裘德》进行剖析和解读。     

展示空间中色彩设计解析简

展示设计是观众聚集的场所,是提供给人们参加设计会展活动的空间．色彩是展示设计中视觉传达的重要因素,它对于渲染展示主题、烘托展示环境、体现展品在空间中的表现力上都起着非常重要的作用．本文主要从原则、展区特色色彩设计、及展示空间的色彩设计几方面进行阐述．     

Blogα空间到QT,s空间的积分型算子的有界性

对Bαlog空间到QT,s空间的积分型算子为有界算子进行等价刻画.利用|f|(z)的估计讨论了Bαlog空间到QT,s空间的积分型算子(CΦJτf)(z)=∫0Φ(z)f(ξ)τ′(ξ)dξ和(CΦJτf)(z)=∫0z(f°Φ)(ξ)τ′(ξ)dξ的有界性,并给出了Bαlog空间到QT,s空间的积分型算子有界的充分必要条件.     

浅谈机械制图教学中空间思维能力的培养简

机械制图是机械类专业的一门重要的专业技术基础课,主要任务是培养学生读图和绘图的能力。根据中职学校机械制图教学的主要内容和学生实际,分析了空间思维能力在机械制图学习中的重要性,本文从丰富学生表象储备、直观教学、多种训练方面着手,培养学生的空间思维能力,有效提高学生的读图绘图能力。     

基于 Google Earth 的中学生地理空间思维能力培养研究简

现代地理教学的新进展对传统地理思维提出了新要求。本文结合中学地理教学中对空间思维能力的要求和教学实际,分析如何利用GoogleEa汕软件培养中学生的空间思维能力以及GoogleEarth在中学地理教学中的应用分析。     

“X1来X2去”格式的认知分析

"X1来X2去"是汉语中使用频率较高的一种格式,"来、去"有一个历时的演变过程。从某种程度上来说,该格式的整合度具有一定的层级性。而且,该格式通过意义的引申,从空间域进入非空间域,从表示具体的事件到表示抽象的事件,从而完成了隐喻的过程。     

A-调和方程Kφ,θ（ri）-障碍问题很弱解的局部有界性

在各项异性障碍问题弱解和各项同性障碍问题的研究基础上,采用Hodge分解定理,借助于Sobolev空间理论及其相关的一些重要不等式来研究各向异性障碍问题的很弱解及局部有界性.     

配合物[Zn（H2dcp）2（H2O）2]·（H2O）2的合成及晶体结构

以硝酸锌和3,5-吡唑二羧酸(H3dcp)为原料在水热条件下合成了配合物[Zn(H2dcp)2(H2O)2]·(H2O)2,并用红外光谱、元素分析和X射线单晶衍射进行了表征。该配合物属单斜晶系,P21/c空间群,晶胞参数为:a=1.00567(9)nm,b=1.24627(11)nm,c=0.68635(2)nm,β=108.972(2)°,V=0.81350(10)nm3,Mr=447.62,Dc=1.827g/cm3,F(000)=456,Z=2。配合物中Zn离子与分属于两个吡唑二羧酸根的2个O原子、2个N原子以及来自于两个配位水分子的O原子配位。     

初中化学探究性学习能力培养的几点思考简

如何改变传统接受式教学,积极开展研究性学习,为学生提供开放的学习空间和学习选择,培养学生自主学习、自主探究的能力,将成为教学研究中的重要课题。就化学实验教学如何培养学生探究能力进行探讨。     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.     

Improvement of one-cycle controller by use of proportional integral differential controller

1.IntroductionOne-cyclecontrolmethod,whichwasproposedaboutonedecadeago[1],hasbecomeanattractivemethodinspecialfieldssuchaspowerfactorcorrection[2-6],switchingamplifiers[7,8],etc.Themainideaofthiscontrollerisbasedonintegrationofdiodevoltageinone-cycleandforcesittobeexactlyequaltothereferencevalue.Themainadvantageofthiscontrollerisitsrealtimeabilitytorejectthevariationofinputvoltage[1].Despitethisgreatability,ithasnogoodperformancesinrejectingofloaddisturbanceandfollowingreferencecommands.Espec…     

库克斯顿城堡

城堡, 是欧洲典型的建筑之一, 每个城堡都有一个美丽的传说或是一段历史。从本期开始, 我们将推出“城堡之旅”, 带各位读者去浏览、观赏欧洲各地的城堡, 开始一段文化与历史的旅途!     

胡主席在印度,我却在中国

Today, Sunday morning, I sit thinking and typing at my computer. My thoughts are in my homeland, India and my body is in China. The body is here and mind there for a good reason. Mr. Hu is president and I am resident and both are in each other's countries (what a difference the absence of one small letter makes!). Mr. Hu will return in a few days and I will stay on longer.