The Importance of Chemistry in Daily LifeMost people have chosen to write their essay about how chemistry has played an important role in everyday I have chosen to ask, how doesn't it play a role in everyday life? The simple fact is that chemistry plays an important role in every person's daily activities from the moment we're So what role does chemistry really play in everyday life? Well, this involvement usually begins first thing each Most people wake up to an alarm or These common household items contain batteries, which make them very chemically These batteries contain positive and negative The positive electrode consists of a carbon rod surrounded by a mixture of carbon and manganese The negative electrode is made of Chemistry plays an important role in the discovery and understanding of materials contained in these and many other common household Things like household cleaners and water purification systems are vitally dependent on Without chemistry something as simple as scrubbing a toilet without fear of severe burns or small explosions might not be Next, though it isn?t widely known, chemistry is also heavily involved with the manufacturing of things such as makeup and Each time you bathe you are witnessing chemistry at Chemicals such as cetyl alcohol and propylene glycol are typical ingredients in the soap used to wash your hair and Without chemistry, these materials (or combinations of these materials) might be hazardous or might not The chemical coloring agents used in makeup and nail polish would not be possible without an understanding of the chemicals Almost anything you do during the course of a normal day involves chemistry in some The gas and tires in cars we drive, the makeup we put on our faces, the soaps and cleaners used everyday, burning wood or other fossil fuels, chemistry is all around you each and every The associations are practically So, as you go about your daily activities, remember to thank As my teacher always says, remember, "CHEMISTRY IS LIFE!"
只要300字左右的？几千字的要不要？
原文： 9-[2-(3-Carboxy-9,10-diphenyl)anthryl]-6-hydroxy-3H-xanthen-3-ones (DPAXs) The most widely used 1O2 trap is 9,10-diphenylanthracene (DPA), which reacts rapidly and specifically with 1O2 to form a thermostable endoperoxide at a rate of k =3106 M1 The decrease in absorbance at 355 nm is used as a measure of the formation of the However, DPA derivatives are not very sensitive probes because the detection is based on the measurement of absorbance [79] Umezaka et [79] fused DPA with a fluorophore (fluorescein) aiming to associate the first’s reactive characteristics with the second’s fluorescent Fluorescein was chosen as fluorophore since it has a high fluorescence quantum yield in aqueous solution and is able to be excited at long From this fusion resulted 9-[2-(3-carboxy-9,10-diphenyl)anthryl]-6- hydroxy-3H-xanthen-3-ones (DPAXs) (F 11) [79] Thus, DPAXs were the first chemical traps for 1O2 that permitted fluorescence They react with 1O2 to produce DPAX endoperoxides (DPAX-EPs) (F 11) DPAXs themselves scarcely fluoresce, while DPAXEPs are strongly The mechanism accounting for the diminution of fluorescence in DPAXs and its enhancement in DPAX-EPs remain unclear [79] The fluorescence intensity of fluorescein derivatives is known to be decreased under acidic conditions as a consequence of the protonation of the phenoxide oxygen In order to stabilize the fluorescence intensity at physiological pH, electron-withdrawing groups wereincorporated at the 2- and 7-positions of the xanthene chromophore, leading to Cl (DPAX-2) and F (DPAX-3) (F 11) This modification lowered the pKa value of the phenolic oxygen atom [79] DPAX-2 was used to detect the production of 1O2 from two different generation systems: the MoO4 2/H2O2 system and the 3-(4-methyl-1-naphthy)propionic acid endoperoxide (EP-1) system, which act at different pH values (5 and 4, respectively) In both cases an increase of the probe’s fluorescence was verified when in contact with the generating These results confirmed DPAXs’ advantage when detecting 1O2 in neutral or basic aqueous solutions [79] The behaviour of this probe towards H2O2, !NO and O2 ! was also studied, but no change in the intensity of the fluorescence was observed for any of these reactive These facts corroborate the specificity of this probe for 1O2 [79] The detection of 1O2 in biological samples was also With this purpose, DPAX-2 diacetate (DPAX-2-DA) was prepared, since it was considered to be more permeable to DPAX-2-DA is hydrolysed by intracellular esterases to generate DPAX- Both DPAX-2 and DPAX-2DA were tested and compared in the same assay However, cells were stained similarly in both This observation probably means that DPAX-2 itself is also membranepermeable [79]译文： 91-[2-(3-羧基-9,10-二苯)anthryl]-6 羟基3h-xanthen-3-酮 (dpaxs)使用最广泛的1o2阱9,10-diphenylanthracene(政治部) 而迅速的反应,特别是与1o2形成耐热endoperoxide的增长率为k=3106米1秒 减少6%,为355nm,是用来衡量形成的过氧化物 不过,政治部衍生不是很敏感的探针,因为检测是基于测量吸光度[79] [79]fused审批与fluorophore(fluorescein)以准第一功的特点与第二的荧光特性 fluorescein被选为fluorophore,因为它具有较高的荧光量子产率在水溶液中,并能 兴奋长波长 由此导致的融合 91-[2-(3-羧基-9,10-二苯)anthryl]-6 - 羟基3h-xanthen-3酮(dpaxs)(图11)[79] 因此,dpaxs被化学第一陷阱1o2允许荧光检测 他们的反应与1o2出示dpaxendoperoxides(dpax-eps)(图11) dpaxs自己scarcelyfluoresce,而dpaxeps强烈的荧光 机制的会计核算窄化荧光dpaxs及其增强dpax-办事仍不清楚[79] 荧光强度的荧光素衍生物已知是减少酸性条件下,随着大量的质子 该phenoxide氧原子 为了稳定的荧光强度,在生理pH, 电子撤组wereincorporated在2-和7点位置的xanthene生色 通往cl(dpax-2)和F(dpax-3)(图11) 这个修改降低pKa值的酚氧原子〔79〕 dpax-2检测生产1o2从两个不同的发电系统: 该moo42/过氧化氢体系和3-(4-甲基-1-萘基)丙酸endoperoxide(ep-1)系统, 该法在不同pH值(5和4美元) 在这两种情况下,提高了探头的荧光验证时接触的发电系统 这些调查结果证实dpaxs的优势,在检测1o2在中性或碱性溶液[79] 该行为此探针对双氧水,! NO和O2! 还研究, 但不改变强度的荧光染色任何这些活性物种 这些事实证实特异性这种探针1o2[79] 检测1o2生物样品中为75% 为了这个目的,dpax-2diacetate(dpax-2-da)制成的,因为它被认为是更容易接受细胞 dpax-2-daishydrolysedbyintracellularesterases产生dpax- 双方dpax-2dpax-2da试验,比较在同一实验系统 但是,细胞染色同样,在这两种情况 这个观察可能意味着dpax-2本身也是membranepermeable[79]
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有机化学英语论文Abstract In this work the effects of the microporosity and chemical surfaceof polymeric adsorbents on adsorptive properties of phenol Textural parameters of four kinds of polymeric resins namely AB-8 D4006 NKA-II and D16 resin were separately measuredby ASAP The surface chemistry of these polymeric resins was determined by means of inverse gaschromatography (IGC) and diffusereflectance infrared Fourier transform spectroscopy (DRIFTS) Static equilibrium adsorption experiments were carried out to obtain theisotherms of phenol on the polymeric It was shown that NKA-II and AB-8 resin possessed relatively high BET surface areas andmicropore volumes while D4006 and D16 resin possessed comparatively low BET surface areas and micropore The results of IGCexperiments revealed that NKA-II resin had extraordinary high specific component of the free energy of adsorption both for polar acetone andbenzene probe and thus extraordinary strong surface polarity compared to the other polymeric It was also found that the isotherm ofphenol on NKA-II was much higher than that on the other polymeric resins due to its strongest surface polarity and largest micropore volumeamong four kinds of These experimental observations indicated that adsorption of phenol on the polymeric resins depended greatly ontheir microporosity and surface The well-developed microporosity and the strong surface polarity would improve the adsorptionof phenol on the polymeric 2004 Elsevier BV All rights Keywords: Polymeric resin; Phenol; Porosity; Surface chemistry; Inverse gas chromatography
建议你去一些专业的环保网站查询，或者去一些具体部门咨询。这些问题一般资料都比较难收集。只有专业性的部门和机构才有~~
英语论文要用英文版的，之前我也走了弯路用了免费版的，结果检测不出来，后来去咨询后才知道至尊版和免费版都是检测中文的，英文的要用英文版的才行。
Outline:1, The English Learners are Increasing N2, Some of my opinions on English L3, Although it is not Easy to Learn English Well, as Long as We Work Hard We Will Make ps：我觉得这个outline不行
化工、矿物学特征的干沉积 在周围的水泥工厂在约旦 干沉积样品收集28住宅屋顶的Fuhais、约旦、在干旱的季节,2004年。这个 样品进行分析和重金属含量为跟踪调查总悬浮颗粒的影响的 在这个城市的水泥行业Fuhais。水泥工厂一直运行在过去的50年里,与管理,是评价 petcoke交融的使用,以降低燃料成本。没有基线数据对重金属由于当前存在的操作 研究。目前的研究表明,铅、铜含量进行统计signi吗?不能在西北领域 比起其他的象限的城市。这signi ?易得癌症是由于沉重的traf ? c的卡车运送原料和水泥 在水泥工厂为主的运输路线的工厂贯穿该象限的城市。镉 (Cd)、铝、铁、锌、锰、镍(明尼苏达州)(倪)、钼(钼)、铬(Cr)的浓度 在所有领域。取样。总体平均浓度的方方面面,除了莫被发现在屋顶的更高 在Fuhais城市居住区比较偏僻的参考网站没有人为活动安曼附近存在。这个 跟踪和重金属浓度和矿物成分干沉积样品收集了来自住宅屋顶 有代表性的电流水泥工业行动,Fuhais支配的空气质量。 关键词:重金属、水泥行业、干沉积,约旦 介绍 约但河水泥工厂(JCF)已经运行的 城市的大约5公里外的Fuhais伟大的 安曼,约旦,自1954年。这个JCF厂坐落于 中心城市的大约12000居民。那里 正在学校、商店、养老院、医院locatedwithin吗 1kmof JCF的网站。Fuhais坐落在一个山谷 通过不同的土地利用方式组成的住宅、商业、 农业活动。 一个环境审计和空气质量评估 在Fuhais得出总悬浮particu - 晚(TSP)浓度下游的治理 设备的设计speci超出,监测?阳离子 JCF周围的空气质量的程序需要考虑更多的囚徒- rameters(例如,重金属),需要更广泛 (上海、顾问和奥萨马•本•拉登频繁沙米利工程,2003a, 2003b)。当前JCF手术已经超过了约旦 空气质量标准,particulatematter小于10μmin大小 可与设备的主要因素之一,在- 所有的大气颗粒物加载附近的工厂
干德-化学分析的统计摘要位置样本载于表一。浓度重金属显示一系列到同一象限中的浓度，在相同的象限内，采样点派广泛地区上空—一些接近显示浓度高及其它污染的来源在该同一象限而远离源显示—ing低浓度。平均浓度水平的se-lected重金属含量(锰，铜，镍，钴、铅、镉、锌、铬，铝，和铁）在四个方向象限内，图2中所示。初步定性观察平均浓度再—sults为每个象限指示thatNi和Fewere中较高，西南象限，铅，铜，钴，高北-andCdwere西象限；东南象限；中较高的锌andMnwere和铝、铬是东北的象限中较高。莫是低，约等于整个浓度，研究领域。因为重金属的平均浓度出现在大多数在进行调查的站点的单向分析不等方差(方差分析）进行测试，signi吗？与不同，不能—heavymetalswith尊重的encesbetweenmean浓度在取样象限。测试的结果显示，signi吗？不能统计的区别(α的级别=10)，找到铅（P=082)和铜（P=081)西北地区象限。所有其他差异，平均浓度的重金属被发现不是统计signi吗？不能由象限取样使用从水泥的距离范围内植物。这方面缺乏统计signi吗？cance被认为是由于在中吗？水泥行业的运作的点数，全市Fuhais的本港的空气质素。铜、铅是signi吗？-cantly相关，他们考虑到的西北地区与重traf有直接关系呢？c模式的货运及汽车运输生和吗？nished材料出水泥厂。
文摘:本研究开发了一种聚合物混合吸着剂(HFO-001)为高效的重金属去除(如铅(2)、Cd、铜(II),(2)]不可逆转的浸渍水合氧化(铁(III)在cation-exchange HFO)粒子(R-SO3Na D-001树脂),这种现象的潜在机制的基础上揭示x射线光电子能谱(XPS)的研究。HFO-001结合了出色的处理,和摩擦阻力流量特性,传统的cation-exchange树脂与特定的关系入手,对重金属HFOs阳离子。D-001相比,吸附选择性的HFO-001对铅(II)、铜(二)、(2)Cd大大提高从Ca(II)中更大的浓度。结果表明,柱吸附能力的工作是4-6 HFO-001 D-001倍以上三方面的重金属去除从模拟电镀水(pH ~ 0)。同样,HFO-001尤为有效杀灭多种微量铅(II)和Cd(2)从模拟自然水域达到饮用水标准,以治疗量高于D-001数量级。性能优越的HFO-001归因于Donnan膜效应所举办D-001以及纳米粒子交互作用的特殊HFO浸渍对重金属阳离子作为进一步证实,由XPS研究吸附铅。更有吸引力,疲惫的HFO-001串珠可以有效地解决由HCl-NaCl再生(pH值(3),没有任何有意义的能力的重复使用的损失。 1。简介:重金属注入受纳水体环境问题仍然是重要的,现在正在日益规范作为新的法规限制金属废水推进亿欧元(合ppb),甚至更低(美国EPA,2004年的水平,中国2008年美国环保署)。在现有技术为重型元
师说题目太旧的不要 写论文带，真的不知道怎么选了，求指教
例如：朱门酒肉臭，路有冻死骨。一人得道，鸡犬升天。衙门八字开，有理无钱莫进来。只许州官放火，不许百姓点灯。四、 风俗习惯不同的民族形成了各自独特的风俗习惯：正如英语中一句谚语所说的：“So many countries, so many ”在对狗的态度上，中国人脑海中狗如同鸡、鸭、猪一样是一种地位十分卑微的动物。常常把狗与“下贱”、“低微”、“无赖”等贬义词联系在一起，如“狼心狗肺”、“狗腿子”、“猪狗不如”、“狐朋狗党”等，[5]（P83）虽然狗也用作看家护院、狩猎、牧羊。狗还常被宰杀烹调，这在西方人看来是非常不能接受的。中国人对狗的态度在谚语中可以体现出来，如：狗眼看人低。 好狗不挡道。 狗嘴里吐不出象牙。 狗改不了吃屎。 痛打落水狗。而狗在西方人眼中不仅是狩猎、看门、工作的得力可靠的好帮手，更是生活中重要的伴侣和朋友，是抚慰人们寂寞空虚生活不可缺少的一部分，甚至将其视为家中的成员，与狗有着深厚的感情。在西方还有发生狗死后，为其安葬立碑的事。因此，狗的形象在英语谚语中是褒义的，人们对狗是怜爱、赞赏的。英语谚语之中，常常以狗的形象来比喻人的行为。如：You are a lucky 你是一个幸运儿。 Every dog has its 各人皆有出头之日。 Old dog will not learn new 老人学不了新东西。 Love me, love my 爱屋及乌。而英语中兔子常代表胆怯，但汉语中与“胆怯”相联系的动物形象则是老鼠。因此有谚语“气壮如牛，胆小如鼠”；英语民族常用狮子比喻力量、雄威，所以有谚语：March comes in like a lion and goes out like a 三月来如猛狮；去如羔羊。Every dog is a lion at 狗是百步王，只在门前狠。A lion may be beholden to a 老鼠也能帮狮子；弱者也能帮强者。这里因为狮子多产于非洲、印度等地，而英国历史上与这些地区或国家有着很深的关系。而我国不产狮子，无论南方北方都产老虎。[6]（P73）从前，老虎数量繁多，常出没山林，侵扰人民，甚至危害人命。人们认为虎为百兽之王，对虎十分敬畏，有“养虎为患”、“伴君如伴虎”的说法，把虎看作力量、威武、雄壮的象征，因此产生了许多关于与老虎有关的谚语。例如：山中无老虎，猴子称大王。 不入虎穴，焉得虎子。 虎毒不食子 初生牛犊不怕虎。五、 民族性格中西方由于各自生存环境的差异，以及人们对自身环境的不同应战，发展出各自不同的社会文明，从而产生了不同的文化取向、价值观念、性格特征。在古希腊，由于土地的贫瘠，海上通道的开辟，再加上频繁的战争和几次大规模的民族迁徙，使得他们很早就发展起商业经济，创造了人类最古老的商业文明。西方成了典型的商业社会，人们从事着频繁的商业活动，正所谓“The English are a nation of shop-”（英国全民皆商，外表富强）。经商的成效不在天地鬼神而在自己，在于自己的才干。[7]（P22-23）商场中的竞争激烈、优胜劣汰、你失我得，这形成了西方人个人意识较强、重视个人作用、个人独立自主、个人利益的个人主义思想。Self comes 自我利益是第一位的。Everyman for himself and God for us 个人为自己，上帝为大家。Near is my shirt, but nearer is my 自己的利益最切身。Self-preservation is the first law of 保存自己是自然界的第一法则。He who depends on another dines ill and sups 指望别人，难有好吃喝。而经商见效快、获利多、风险大，也养成了西方人急功近利、富于进取、敢于冒险的流动性格。If at first you don’t succeed, try, try, try Forbidden fruit is Catch as catch Discontent is the first step in Life is a battle from cradle to 人生是一场从摇篮到坟墓的战斗。Life, to be worthy of a rational being, must be always in 人生必须永远前进，才不愧为有理智的人。Fortune favors the 勇者天佑。个人主义思想使西方人重视突出个人，喜欢表现自己的个性，乐于标新立异，爱出风头，尊重个性、自我，并鼓励个性发展，对别人因个性表现出的任何形态都能够理解接受，这可以在谚语中体现出来。It’s squeaky wheel that gets the 吱吱叫的轮子先上油。Tastes 个人品位不同。Every man after his 个人追求个人的风格。 If you’ve got it, flaunt 这句谚语来源于一部The producer的美国电影。意思是如果你有钱、本事、美貌或性感，就应该让人瞧瞧。[8]（P334）而以农业为根本的中国人则截然不同，农业的收获往往不在耕种者，而是老天。人的意志如何强大也阻止不了干旱、洪水、风暴等天灾的来临。[7]（P23）另外农业见效慢，而一年一度的丰收来自于长期的扎扎实实、坚持不懈的努力劳动，这形成了中国人思想意识中安定保守、善于坚持忍耐、缺乏冒险、知足的性格的特质。[5]（P23）
一、英语专业文化方向的论文，要看那一个方向了。二、文化方向的论文资料，那一方面？三、你自己要有一个底，什么样的文化，最好是接近目前民生的，再从一个论点，展开讨论。四、决定那一个以文化背景为主题的。