欧美同学会留英分会：新春联欢献爱心

神獒尽职金猪拱门,欢聚一堂奉献爱心。2007年2月10日农历小年,欧美同学会·中国留学人员联谊会留英分会在中科院研究生院活动中心隆重举办了颇有特色的迎新春联欢会,并通过富有意义的活动突显归国学子的拳拳爱心。联欢会邀请到了总会党组成员、常务副会长冯长根学长,教育部国际司张宁司长助理等来宾。中国2008年奥运村副部长邓亚萍学长,暨南大学艺术学院院长、著名影视表演艺术家张铁林学长等因故未能参会,通过电话专门表达祝贺。

推动绿色发展 共建美好家园——欧美同学会留英分会成立20周年纪念活动剪影

2010年1月30日下午,欧美同学会留英分会2010年春节联欢会在北京星河湾国际会议厅盛大举行,来自欧美同学会总会、英国大使馆文化教育处、伦敦发展署暨伦敦市长办公室北京代表处、英国研究理事会、星河湾地产、北京市通州区政府的嘉宾以及来自欧美同学会其他分会的嘉宾与近300名留英学长及家人出席了喜庆热烈。

爱洒学子 情牵山区

7月18日上午9时,在河南省卫辉市狮豹头乡政府大院内,5名贫困学生第六次领取了河南孟电集团物流有限公司总经理侯丙保送来的千元红包,还有米、面、油、书包、文具等物品。这意味着孩子们可以无忧无虑地享受快乐暑期,家长们也无需再为孩子下学期的学费而烦恼了。

学会倾听,让学生爱上表达

八年级学生,没有了刚进中学时的新奇,也没有初三面临毕业升学的压力,处于一个相对平稳的时期。然而有一部分学生学习目的不明确,缺乏学习的主动性。在课堂上只是比较被动地完成任务,不容易静下心来倾听别人的发言,显得心不在焉,课堂效率也不高。其实认真的倾听不但是对别人的尊重,是个人素养的体现,而且反应了学生的课堂专注力,同时也是良好表达的基础。因此在日常的英语课堂中应针对学生的兴趣创设活动,充分调动学生倾听的积极性。

Flotation separation of andalusite from quartz using sodium petroleum sulfonate as collector

The floatability of andalusite and quartz was studied using sodium petroleum sulfonate as collector, being successfully applied in the real ore separation. The collecting performance on minerals was interpreted by means of zeta potential measurement and infrared spectroscopic analysis. The single mineral experiments showed that andalusite got good floatability in acidic pH region while quartz exhibited very poor floatability in the whole pH range. At pH 3, the presence of Fe3+ obviously activated quartz, causing the identical flotation behavior of the two minerals, and calcium lignosulphonate exhibited good selective inhibition to quartz. The real ore test results showed that andalusite concentrate with 53.46% Al2O3 and quartz concentrate with 92.74% SiO2 were obtained. The zeta potential and infrared spectroscopic analysis results indicated that chemical adsorption occurred between sodium petroleum sulfonate and andalusite.

Study on text analysis and advanced English teaching

This paper is attempted to explore advanced English teaching from perspective of text analysis. It involves the introduction of culture background, the application of genre-based approach, the appreciation of writing style and the analysis of textual structure through sample studies.

Contribution of components from volume defect in natural pyrite and quartz to solution chemistry of flotation pulp

The volume defects in pure pyrite and quartz from a classical Cu-Pb-Zn-Fe sulfide deposit were investigated.The results indicate that a large number of volume defects exist in natural pyrite and quartz.The volume defects assume a variety of shapes,including long strips,oval shapes and irregular shapes,with sizes ranging from a few microns to dozens of microns.These volume defects are rich in metallogenic elements as a result of the capture of metallogenic and mineralizing fluid during the defect-forming process.The volume defects are fractured during the grinding process,and their chemical components are released into the solution,as confirmed by the abundant presence of various metal and non-metal components in the cleaning water and EDS results.Under the experimental conditions of 10 g pyrite or quartz with grinding fineness of d90=37 μm,which was cleaned in 40 m L of pure deionised water under an inert atmosphere,the total average concentrations of Cu,Pb,Zn,Fe,Ca,Mg and Cl-in the aqueous solution are 32.09×10^-7,16.51×10^-7,19.45×10^-7,516.52×10^-7,129.50×10^-7,35.30×10^-7 and 433.80×10^-7 mol/L,respectively,for pyrite and 19.20×10^-7,8.88×10^-7,8.31×10^-7,82.71×10^-7,16.21×10^-7,4.28×10^-7 and 731.26×10^-7 mol/L,respectively,for quartz.These values are significantly greater than those from the experimental non-oxidative dissolution of the pyrite or quartz,respectively.Therefore,the metallogenic fluid in volume defects of mineral crystal is concluded to represent the dominant contribution to the solution chemistry of sulfide flotation pulp.The present investigation will help to deeply understand the flotation theory of sulfide minerals.

浙江省茅盾研究学会成立

浙江省茅盾研究学会成立大会于一九八五年十二月十日至十三日在作家的故乡桐乡县举行。全省各地的代表以及有关方面领导共三十多人冒着大雪前往参加。开幕式上,筹备组长盛钟健致祝词,省社联副主席高培明、桐乡县委宣传部长许彩英分别致祝词,中国茅盾研究学会副会长黄源,茅盾的表弟陈瑜清因受雪阻未能到会,委托盛钟健同志转达贺意。会上还宣读了中国茅盾研究学会、嘉兴市文联的贺电,

六年制第三册除法应用题练习设计

等分除法应用题和包含除法应用题是本册教材的重要内容。练习的目的在于引导学生把应用题的数量关系和除法的意义联系起来,正确选择算法。要注意对份总关系的三种应用题进行整理,对学过的加减法应用题进行复习巩固,以提高学生综合运用知识的能力,形成良好的认知结构。根据以上要求,设计补充练习题如下;

留学报国谱新篇——留英归国学子喜迎2008奥运年新春联欢会

值此奥运之年和新春佳节到来之际,由欧美同学会·中国留学人员联谊会留英分会举办的"留英归国学子喜迎2008奥运年新春联欢会"2月2日在北京市人民对外友好协会举行。200多名留英归国学子欢聚一堂,共度佳节。全国人大常委会副委员长。

胜日寻芳运河滨 无边光景一时新 “低碳生活 绿色出行”骑行活动举行

2015年4月25日下午,由欧美同学会留英分会青委会举办的"低碳生活、绿色出行"骑行活动在通州运河森林公园如期开展。下午两点,或留英、或留美、或留澳、或留新的20多位同学会骑士们,身着印有"冠军骑迹、全民绿动"字样的运动款式文化衫,聚集在通州滨江帝景整装待发。值得一提的是,本次活动非常荣幸地邀请到了多位全国自行车冠军运动员作为领骑人员。

Contrastive Study of Thinking Modes between Chinese and English and Thinking Training of English Writing for Chinese Students

Based on the relationship between language and thinking, this paper is designed to inform that Chinese mode of thinking has great effect on college students＇ English writing from the perspective of contrastive study of thinking modes between Chinese and English. In addition, one specific measure about training English mode of thinking is put forward.

Mechanism of separating muscovite and quartz by flotation

Flotation experiments were performed to investigate the separation of muscovite and quartz in the presence of dodecylamine(DDA), tallow amine(TTA) and dodecyltrimethylammonium bromide(DTAC). The adsorption mechanisms of these three kinds of amines on muscovite and quartz were studied by FT-IR spectrum analysis, contact angle measurement and molecular dynamics(MD) simulation. The results reveal that the separation of muscovite from quartz is feasible at strong acid pulp condition using amine collectors. TTA and DTAC show poorer collecting ability for flotation of the two minerals compared with DDA. Physical adsorption is found to be the main adsorption module of amine collectors on muscovite and quartz by FT-IR analysis. MD simulation results show a strong physical adsorption ability of DDA+ cation on muscovite and quartz(muscovite(001):-117.31 kJ/mol, quartz(100):-89.43 kJ/mol), while neutral DDA molecular can hardly absorb onto the surface of these two minerals. These findings provide a novel explanation for the flotation mechanism from the perspective of MD simulation.

Decomposition kinetics of zircon sand in NaOH sub-molten salt solution

Sub-molten salt was applied to the decomposition of zircon sand(ZrSiO4).The kinetics of the decomposition of zircon sand and the effects of reaction temperature,reaction time,NaOH content,agitation speed,and the NaOH/ore mass ratio on the decomposition rate of zircon sand in NaOH sub-molten salt were investigated.The results indicate that the decomposition rate of zircon sand increases with the increase in the reaction temperature,reaction time,and NaOH content.The shrinking-core model with surface chemical reaction-controlled process is the most applicable for the decomposition of zircon sand,with the apparent activation energy of 77.98 kJ/mol.The decomposition product is sodium zirconium silicate(Na2ZrSiO5),and the decomposition rate is higher than 99%under the optimal conditions.

A Novel Multi-Tube Photoreactor with UV Light and Immobilized TiO_2 Thin Film for Water Treatment

A novel multi-tube photoreactor with 0.0188m3 valid reaction volume was constructed in pilot-scale. This rectangular reactor consisted of 13 regularly distributed silica glass tubes coating with TiO2 thin film photo-catalyst. Total active area of TiO2 thin film is 0.3916m2. The ratio of surface area to volume achieves 20.8m-1. Photocatalytic experiment of phenol red demonstrates that the apparent reaction rate constant (k) is 0.074 65 h-1 and 0.16502h-1 for reaction system with and without micro-bubbles mixing. The corresponding apparent quantum efficiency (a) is 8.1771 X 10-7g.J-1 and 4.9036 x 10-7g-J-1, respectively. COD value of reactant could decrease to 17mg.L-1 and high performance liquid chromatography (HPLC) only shows two absorption peaks in 24 h pho-tocatalytic process time, so this photoreactor has good photomineralization effect. Experimental results reveal that photocatalytic destruction of organics is possible by using the multi-tube photoreactor.

Effect of Mn(II) on quartz flotation using dodecylamine as collector

Quartz is, in most cases, the major gangue mineral found in the manganese ore. Mn iron, dissolved from the surface of ore, will determine the interfacial properties of the particles and, thus, their flotation behavior. In this work, the effect of Mn2+ on quartz flotation was investigated through flotation tests. It was found that quartz can be depressed with Mn2+ and floated with dodecylamine in the pH region 7-8. In order to prove the validity of the findings, UV spectrophotometry, FTIR and SEM-EDS were carried out. UV spectrophotometry tests results show that Mn2+ can competitive adsorb with RNH3+ in the surface of quartz at acidic and neutral pH values. The FTIR measurements and SEM-EDS analysis indicate that Mn2+ forms precipitation and adsorbs on the negatively charged quartz surface, it induces quartz recovery dropping in alkaline pH. Furthermore, in the case of sodium hexametaphosphate(SH), sodium silicate or citric acid, the effects of Mn2+ were also studied. This depression in the given Mn2+ did not disappear. Citric acid is an appropriate modifier to separate quartz depressed by Mn2+ from other ores at pH 7.

The effect of grade entitlement attitudes on English programs in Japanese universities language testing and evaluation： Foreign language skill development

This paper deals with the effect of grade entitlement on English programs in Japanese universities. For years, teachers and administrators have noted that even though Japan is one of the highest spending countries on English education, there has not been a commensurate increase in English ability. Most research to explain this disparity has thus far focused on methodology, class size and teacher qualifications. Recent research dealing with academic entitlement at US universities may offer an alternative explanation for some of the lack of success that Japanese universities have experienced. Ellen Greenberger, one of the author＇s of Self-entitled college students： Contributions of personality, parenting and motivational factors, which appeared in 2008 in The Journal of Youth and Adolescence claims that in recent years, the number of students appealing their grades and expecting to be rewarded for effort rather than results has increased. Greenberger＇s paper motivated this study. 200 Japanese students completed a survey that presented a number of grade scenarios. The students were asked, based on test grades and completed assignments, what grade a student should receive in each hypothetical situation. Similarly, full-time and part-time teachers were asked what grade they would give in each situation. This paper explains the different situations, students＇ and teachers＇ responses to the scenarios, and then discusses the implications for English education in Japan.

Amelioration of experimental colitis by Astragalus membranaceus through anti-oxidation and inhibition of adhesion molecule synthesis

AIM: To investigate the protective effects of Astragalus membranaceus(Am) against hapten-induced colitis in male Sprague-Dawley rats as well as its underlying mechanism.METHODS: Experimental colitis was induced in rats by enema administration of 2,4-dinitrobenzene sulfonic acid (DNBS). Rats were either pretreated with Am extract (2 or 4 g/kg, p.o. once daily) starting from 10 d before DNBS enema, or received Am post-treatment (2 or 4 g/kg, p.o.twice daily) on the three consecutive days following DNBS administration. Colonic lesion area and histological damage were determined, while the activities of myeloperoxidase (MPO) and xanthine oxidase, as well as reduced glutathione (GSH) content were measured in the excised colonic tissues. Besides, protein expression of inducible nitrite oxide synthase (iNOS), intercellular adhesion molecule-1 (ICAM-1) and P-selectin was also detected by Western blot analysis.RESULTS: Our findings had shown that both macroscopic lesion area and histological colonic damage induced by DNBS were significantly reduced by both Am pre- and post-treatments. These were accompanied by attenuation of the elevated colonic MPO activity and downregulation of the iNOS, P-selectin, and ICAM-1 protein expression.Besides, deprivation of colonic GSH level under colitis condition was also preserved.CONCLUSION: These results demonstrate that Am possesses both preventive and therapeutic potential in experimental colitis. The anti-inflammatory actions involve anti-oxidation along with inhibition of adhesion molecule synthesis in the colonic tissues.

Influence of dioxin reduction on chemical composition of sintering exhaust gas with adding urea

With the addition of urea as an inhibitor, four groups of reducing dioxin emission experiments in sintering pot were conducted. The results show that, adding 0.05%, 0.1% and 0.5% （mass fraction） urea, the emission concentrations of dioxin are 0.287 0.258 and 0.217 ng-TEQ/m3, respectively. The dioxin emission rates drop substantially compared to 0.777 ng-TEQ/m3 flee of urea. With an increase of the urea content, the concentration of SO2 emission reduces sharply. （NH4）2SO4, formed by the reaction of SO2 and NH3, goes into the dust and part of NH3 is released before reaction with the emission of exhaust gas. The NO~ emission presents an increasing trend because the reaction of NH3 and 02 at high temperature produces NOx. Based on the consideration of factors such as the effect of reducing dioxin emission, and the chemical composition of exhaust gas, 0.05% is the optimum adding content of urea.

Comparative Analysis of Modal Auxiliary Verbs in English and in Chinese

The study of modal auxiliary verbs has been done by comparing modal auxiliary verbs in English with the ones in Chinese qualitatively and quantitatively. The modals in English and in Chinese are statistically analyzed through their forms and meanings. The data consists of 50 pieces of Chinese prose with their 50 English translation versions called corpus A and 50 pieces of English prose with their Chinese translation versions called corpus B, altogether 200 articles, which represent a type of discourse that is rich in modal auxiliary verbs both in English and in Chinese The major findings are as follows： （1） The three criteria： inversion, negation, and the use of pro-forms can be used to define both English and Chinese auxiliaries; （2） the modals of both languages can be analyzed within the same semantic categories： volition, probability, and necessity; （3） Chinese epistemic modals can have inversion patterns; （4） the negative forms of Chinese modals are more complex than those of English modals; and （5） the statistic analysis shows that the modals in probability category both in English and in Chinese are used much more often compared to the other two categories： volition and necessity and that deontic modals are used much fewer in both languages to express necessity