We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center
我們分別以苯、二苯乙烯、噻吩為中心，氨基、二苯氨基和二乙氨基為電子
給體，硝基為電子受
體組合形成的分子為研究對象，在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度，重點研究了分子的長度、中心和
給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明，分子長度與單光子吸收強度之間有密切關系，而在雙光子吸收中這種關系較弱；中心在雙光子吸收中具有重要的作用；在中心和受
體一定的情況下，增加
給體的供電子能力，可提高雙光子吸收強度。
The phage has replicated and the donor cells have lysed.
噬菌
體已復制和
給體細胞已發生裂解。
The negotiated regulation between the governments and the regulatees may be a good method. in the end, this dissertation presents the endogenic conflicts in the rural public goods provision system based on the economic development theory of public goods provision. in order to solve these problems, the traditional provision system must be reformed institutionally, and more funds should be collected for the provision of the rural public goods, as well as improving the fiscal investment in these fields
西北大學博士學位論文最後，基於公共物品提供的經濟發展觀，分析了我國農村公共物品供
給體制內生的矛盾和問題，指出解決農村公共物品關鍵措施在於將「三提五統」的農村公共物品融資
體制納入國家財政收支范圍，在加大政府支農力度的同時，改變重工輕農、重城市輕農村的傳統觀念，多渠道地為農村公共物品的生產提供資金。
The fluorescence of copolymer ( dmbn - vcz ) can be quenched by both electron donor ( n, n - dimethylaniline ( dma ) ). electron acceptor ( 1, 4 - dicyanobenzene ( 1, 4 - dcb ) ) and c60. the dimolecular exciplexes between copolymer ( dmbn - vcz ) and stronger electron donor or electron acceptor are formed, respectively
它能與電子
給體n ， n -二甲基苯胺（ dma ）和電子受
體1 ， 4 -二氰基苯（ dcb ）相互作用生成激基復合物，並能與dma形成三元激基復合物。
The color of devices is disturbed badly and the luminescent efficiency of devices is degradated because of exciplex ' s emission. the mechanism is investigated in this paper on the formation of exciplex and on the mixing - layer device structure eliminating the exciplex based on rare - earth complex, specially on eu ( dbm ) 3bath and gd ( dbm ) 3bath. it is thought that the exciplex results from the interaction between the singlet excited state of the ligand of electron acceptor material and the ground state of electron donor material
本論文以稀土配合物oel為重點和基礎，以eu （ dbm ） _ 3bath和gd （ dbm ） _ 3bath為典型材料，研究了激基復合物的形成和稀土配合物器件中混合層能夠消除激基復合物，認為激基復合物是電子受
體材料配
體能級的單重態與電子
給體材料的基態相互作用而產生的。
The fluorescence spectra of the conjugationed polymer containing of n - ( a - naphthyl ) carbazole show that the emission sprctra in aromatic solvents are more red - shifted than that in aliphatic solvents although these solvents have the same polarity. the fluorescence chatacteristics were different from th e n - ( a - naphthyl ) carbazole ' s. the fluorescence of the conjugationed polymer can be quenched by electron donors and cm and cannot be quenched by electron acceptors
對含有n - （ -荼基）咔唑基團的共軛高聚物，它在芳香族溶劑中的熒光發射比非芳香族溶劑中明顯紅移，也不具有n - （ -萘基）咔唑單元所具有的分子內電荷轉移特性，它的熒光只能被電子
給體和c _ （ 60 ）猝滅而不能被一般的電子受
體猝滅。
The result show that ppv and c6o ( oh ) n in the ionic self - assembled multilayer films have nothing to do with each other on the ground state, but light arise charge transfer between ppv and c6o ( oh ) n on the excitation state, and the structure of electron donor - accepter is formed in the films
通過以上結構的確定及各種特性的測試分析，顯示靜電自組裝復合薄膜在基態下ppv和c _ （ 60 ） （ oh ） _ n不發生作用，但在光照激發狀態下會發生分子間電荷轉移，形成
給體?受
體結構。
Such as the strategy of heavy industry priority development, the price scissors of industrial and agricultural products … etc. in addition, the systems of divided management to urban and rural areas, for instance, household register system, public goods provision institution social security system and fiscal and tax system, serve as essential reasons. moreover, property right difference causes the expansion of income gap between urban and moral residents while the path - dependence in the institutional change intensifies the gap
認為改革開放前的重工業優先發展戰略、工農業產品價格「剪刀差」等產業偏向政策是城鄉居民收入差距形成的歷史原因;戶籍制度、公共產品供
給體制、社會保障制度、財稅
體制、金融
體制等城鄉分割管理
體制是城鄉居民收入差距擴大的根本原因;城鄉產權制度差異是城鄉居民收入差距擴大的重要原因;制度變遷的路徑依賴強化了我國城鄉居民收入差距。
The results of experiments show that the most efficient tpa materials seem to be the ones with various electron - donor ( d ) and electron - acceptor ( a ) moieties attached symmetrically or asymmetrically to a center
實驗結果顯示，最有效的雙光子吸收材料是由電子
給體和電子受
體對稱或反對稱的與一個中心結合而成的系統。
The historical evolvement and contrast study of rural public goods ’ supply mechanism in respect of demand expressing, it is very similar between people commune period and contract responsibility period. the leader ’ s political and economic ration is the core to be considered and the peasants ’ real demand expressing is at the edge
二、農村公共產品供
給體制的歷史演變及對比研究在需求表達方面，人民公社時期和承包責任制時期比較類似，都是以領導者的政治、經濟理性為主，農民的真實需求表達都處于邊緣化的境地。
The stronger t he electron - donor is, the more significant the solvent effect is for molecules with a given center. the structure of this thesis is as follows
在中心和受
體一定的情況下，碩士學位論文中文摘要
給體的供電子能力越強，溶劑對分子的雙光子吸收的影響越大。
The third chapter firstly analyzes tourist shopping behavior using stimulate - react model and prospects the developing trend of tourism shopping ; then analyzes the properties of tourism shopping different from other industries and the main problems by researching tourism commodity supply system ; finally analyzes the market structure, market behavior and market achievements of tour shopping by scp framework
第三章首先運用行為學的「刺激? ?反應」模式分析了旅遊者購物行為，展望了旅遊購物新發展趨勢；其次，通過對旅遊商品供
給體系的研究，分析了旅遊購物不同於其他產業的特點，以及存在的主要問題；最後運用scp框架分析了旅遊購物市場結構、市場行為及市場績效。
That ' s a little somethin ' for " sportscenter.
這是
給"
體育中心"的一點小禮物
On reconstructing the supply system of rural public products after canceling the agriculture tax
論取消農業稅后農村公共產品供
給體制的重構
This paper depicts the characters of the supply system of the beyond - system public goods ( bpg )
本文是對我國鄉鎮制度外公共產品供
給體制的分析。
Combing with the theories of public choice, the optimal supply of public goods and the analytical methods of charts and cases, this paper tries to provide a systemically theoretical framework to explain the characters of the supply system of bpg
本文綜合運用公共選擇理論，公共產品最優供
給理論以及圖表和案例的分析方法，對我國鄉鎮制度外公共產品供
給體制提供了一個系統的分析框架。
Through the literature material methodology and the logic analysis method, it has analyzed the modern network information technology from the multi - angles, the opportunity and challenge which brings for the athletics teaching, thus set a higher request to the new time gym instructor
摘要通過文獻資料研究法和邏輯分析方法，從多角度分析了現代信息技術
給體育教學帶來的機遇和挑戰，從而對新時期
體育教師提出了更高的要求。
India ' s supply system of public goods in rural areas
印度農村公共品供
給體制研究
On the supply system of public products in the rural
我國農村公共產品供給體制的轉換與創新
