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In this dissertation, we optimized the thinkness of each layer of TFEL devices using the layered optimization method to obtain ZnS: Ce〓 TFEL devices. Accoding to the energy level structure of Ce〓, two criteria for distinguishing the EL of Ce〓 were found out, from which it was conduded that the TFEL of ZnS: Ce〓 comes from 5d→4f transition of Ce〓. The measurement of brightness waveform showed that the TFEL of ZnS: Ce〓 was the luminescence from independent centers. and there were the field induced-delocalization in this process anf it〓s the cause of low TFEL efficiency of ZnS: Ce〓. In this dissertation, different influence factors on TFEL of ZnS: Ce〓 were sdudied. The influence of different host lattice is different: The blue/green ratio of ZnS: Ce〓 in hexagonal system of ZnS is larger than that in cubic system of ZnS, and the TFEL peaks in hexagonal system of ZnS moves toward longer wavelength compared with that in cubic system of ZnS. The adding buffer layer was used in this stage. The solubility of Ce〓 in ZnS was small and it was another limit to TFEL brightness of ZnS: Ce〓 device. The solubility of Ce〓 increased ten times when using Li ions as flux, so that the TFEL brightness of ZnS: Ce〓 was enhanced. It was found that the appearing of ZnO in active layer improves the TFEL of ZnS: Ce〓: the brightness and the wave range of ZnS: Ce〓TFEL were enhanced.
本文采用TFEL的分层优化方案,优化组合了各膜层厚度,选择最佳制备条件,得到了ZnS:Ce〓的TFEL;根据Ce〓的能级结构,找到了判别Ce〓的EL的两个简单依据,并据此断定ZnS:Ce〓的TFEL的两个发射峰分别属于Ce〓的〓和〓跃迁;亮度波形测量表明ZnS:Ce〓的TFEL属于分立中心发光,分析认为在此过程中存在着较严重的场致离化,这也是ZnS:Ce〓的TFEL效率较低的一个原因;本文考查了影响ZnS:Ce〓的TFEL的各种因素,发现:基质的晶体结构对ZnS:Ce〓的TFEL有所影响,在六角相ZnS中Ce〓的TFEL优于立方相ZnS中Ce〓的TFEL:发射峰的蓝-绿比相对较大,且光谱向短波方向移动,在此项研究中本文采用了在发光层前增镀过渡层的办法,过渡层为六角晶相的ZnO;限制ZnS:Ce〓的TFEL器件亮度的一个原因是Ce〓在ZnS中的溶解度低,本文用Li离子作助溶剂增大了Ce〓的溶解度,增大幅度为一个量级,并且ZnS:Ce〓的TFEL亮度明显提高;从ZnS:Ce〓的TFEL光谱来看ZnS:Ce〓的TFEL波长覆盖范围较小,亮度也不高,达不到做为白色TFEL材料的要求,需要寻找新的白色TFEL材料;在研究ZnS:Ce〓的TFEL中还发现:发光层中ZnO的出现有利于ZnS:Ce〓的TFEL:发射峰变宽、亮度增大。
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But from that time forward, the whole shop, from the cash box down to the pinewood logs, formed their opinions from that of the cask; and they all had such confidence in him, and treated him with so much respect, that when the huckster read the criticisms on theatricals and art of an evening, they fancied it must all come from the cask.
不过从这时候起,整个的店——从钱匣一直到木柴——都随声附和盆子了。它们尊敬它,五体投地地佩服它,弄得后来店老闆晚间在报纸上读到艺术和戏剧批评文章时,它们都相信这是盆子的意见。
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All soldiers surprisingly find ,just in that trice,that on the other side of hummock,what they face should be a great sheet of English roses,from the slope of the hummock to the plain beneath and extend to where the earth and sky meet.as if a red rainbow,lies across the far-flung Catalaunian Plains.the dews in the West Europe's morn glitter brightly on the petals like thousands of stars,wind from the Ligurian sea pet their enchanting faces.general stops,all men halt.general get down from the back of his horse,picks off his visor,facing the roses.his black eyes being gloomy for so long a time glow unusally,he extends his hand to those roses,but draws it back as if he was shocked.after standing quietly for a dozen seconds,he suddenly draws his sword,takes out the diamond inlaid in the handle of the sword ,crouches down and gently puts it into the clusters of the English roses.
宛如一道红色的虹,横亘在宽广的加泰罗尼亚平原上。西欧清晨的露珠在花瓣上如千万颗星子般闪着晶莹的光,利古里亚海的风轻抚着她们的脸庞。将军停住了,所有的人都停住了。他摘下面盔,下了马,一直沉郁着的黑色的眼睛里流露出一丝异样,他把手伸向那些美丽的花朵,但却又触电般的缩了回来,停顿了十几秒钟后,他突然抽出自己的佩剑,摘下剑柄上的钻石,蹲下来,把它轻轻的放在花丛中,然后站起来,立在那里,仍旧是一言不发。
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Analysis includes three aspects: main body of environment's right is from main body using environment discreditably to main body using environment hurtfully; Character of environment's right is from creditor's right based on social damage to property's right based on implementing environment's criterion; Form of environment's right is from static adscription to dynamic fluxion.
分析了中国环境使用权的有偿分配主体由有损害使用主体转变为有害使用主体、性质由建立在因污染引起的"社会损害"基础上的债权转化为实现环境质量标准基础上的物权、形态由不可转让的静态归属到可交易的动态流动的进化过程。
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When the solution changed from acidic to basic, the chem. shifts of b-15N atom shifted from 366-380 ppm to ~500 ppm, corresponding to an equilibrium shift from hydrazone form to azo anion structure of the dyes.
当样品溶液从酸性转成碱性,β-氮-15原子的化学位移从366-380PPM移到500PPM,相应于从腺型到偶氮阴离子结构。
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The article discussed the 3rd movement of Mozart last work Piano Sonata in D Major, K.576 from two aspects: the music form structure and music representation. The writer tried to analyze the piano work systematically from the rationality to sensibility, from immanency to externality.
本文试图从曲式结构和音乐表现这两个方面对莫扎特钢琴奏鸣曲中的绝笔之作K.576第三乐章进行探讨,力求从理性到感性、从内在到外在对作品进行系统地刨析。
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The larger part of the collective existence of every community is consumed in transactions of buying and selling, of letting and hiring, of alliances between men for purposes of business, of delegation of business from one man to another; and this is no doubt the consideration which led the Romans, as it has led most societies, to relieve these transactions from technical incumbrance, to abstain as much as possible from clogging the most efficient springs of social movement.
每一个社会的集体生存,其较大部分是消耗在买卖、租赁、为了商业目的而进行的人与人之间的联合、一个人对另一个人的商业委托等等交易中;这无疑是使罗马人象大多数社会一样,考虑到把这些交易从专门手续的累赘中解脱出来,并尽可能使社会运动最有效的泉源不至阻塞。
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Only insist inside the overseas-funded enterprises revenue from tax indiscrimination treatment, and adjust the contents and forms of the revenue from tax special law system according to the our country industry policy, then can for our country the economy melts the economic integral whole of the human life field to turn to provide an efficiently, fair, the stable revenue from tax legal system environment, better promote our country the tax law system of perfect and BE in line with international usual practice better.
只有坚持内外资企业税收无差别待遇,并根据我国产业政策调整税收优惠法律制度的内容和形式,才能为我国经济融人世界经济一体化提供一个高效、公平、稳定的税收法制环境,更好地促进我国税法体系的完善以及更好地与国际惯例接轨。
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In 1980s and 1990s, from the decoration of literature history to the modern time and the contemporary teaching of high school , from indite to criticism, from publish to literature activity, there is a kind of pesky tendency,which cults "pure literature" and pays attention to Leisure works upon which control and wrap are held with certain political utilitarianism.
20世纪80、90年代以来,从文学史的重修到高校现当代文学教学,从创作到批评,从出版到文学活动,各方面都体现出一种过分推崇所谓"纯文学"、过分关注"闲适"类作品、而将带有一定政治功利性的文学给予抑制和遮蔽的极端化倾向。
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MPGES-2 immunostaining remained a strong level from day 1 morning to day 2 evening, slightly increased from days 3 to 4, and dropped to a low level from days 5 and 6. During early pregnancy, mPGES-2 expression pattern shown by Western blot was similar to that of infundibulum by immunohistochemistry.
利用Western blot检测mPGES-2蛋白在早期妊娠输卵管中表达的结果与免疫组织化学检测伞部的结果基本一致。mPGES-2 蛋白在壶腹部的免疫染色整体稍弱于伞部。
- 相关中文对照歌词
- I Learned How To Love From You
- From Her Lips To God's Ears (The Energizer)
- Shame On You (To Keep My Love From Me)
- Shame On You (To Keep My Love From Me) (Radio Edit)
- Just To Feel This Love From You
- From The Ritz To The Rubble
- From Shapeless To Breakable
- Girl From Ipanema Goes To Greenland
- Journey From A To B
- Leave It All To Shine / Leave It All To Me (Theme From iCarly)
- 推荐网络例句
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We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.
索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称;三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起,称之为挽歌体诗人或者史诗诗人,他们被称为诗人,似乎只是因为遵守格律写作,而非他们作品的模仿本质。
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The relationship between communicative competence and grammar teaching should be that of the ends and the means.
交际能力和语法的关系应该是目标与途径的关系。
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This is not paper type of business,it's people business,with such huge money involved.
这不是纸上谈兵式的交易,这是人与人的业务,而且涉及金额巨大。