共整合分析 的英文怎麼說

中文拼音 [gòngzhěngfēn]
共整合分析 英文
cointegration
  • : 共動詞[書面語]1. (圍繞) surround2. (兩手合圍) span with the hand
  • : Ⅰ形容詞1 (全部在內; 完整) whole; all; complete 2 (整齊) neat; tidy; orderly Ⅱ動詞1 (整理; 整...
  • : 合量詞(容量單位) ge, a unit of dry measure for grain (=1 decilitre)
  • : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
  • : Ⅰ動詞1. (分開; 散開) divide; separate 2. (分析) analyse; dissect; resolve Ⅱ名詞(姓氏) a surname
  • 整合 : commensuration
  1. Nowadays, there are a series of problems to solve in the management of student apartments. after comparing the three representative modes of investing and constructing college apartments worldwide, i. e. the modes of apartments managed by university, managed by investor and managed by both university and investor, the paper analyzes the different operation modes according to different construct forms and their advantages and disadvantages. using the operation modes of student apartments abroad for reference, the paper puts forward three new modes combining property management and ideological and political education in operating students apartments : community management, apanage management and open management, and lays emphasis on the key role of managing student apartments in the socialization reform

    目前在我國學生公寓的運作上還存在著一系列需要研究解決的問題,本文總結國內高校學生公寓投資和建設的三種代表形式進行了比較,針對三種管理的不同形式,即由校方統一管理、由投資方管理以及由學校和社會同管理,進一步其投資建設形式不同帶來的不同運作,通過對其利弊的以及對國外高校學生公寓運作模式的借鑒,本文提出了「社區化管理」 、 「屬地管理」 、 「開放式管理」 、 「物業管理與思政工作有機結」四種學生公寓運作的新思路,著重強調了學生公寓的管理工作在個公寓的社會化運作過程中的關鍵性作用。
  2. It is the key of ebfs, therefore, furthermore calculation about link are carried out in this thesis, introduced achieved research, summarized the affect of link on whole capability in the first, the second, numerical calculation are proceeded on link with ansys : with the purpose of discussing yielding mode critical length of link, established five different specimens ; with the purpose of discussing the influence of h / tw of web, b / tf of flange and h / b, established eighteen different specimens ; with the purpose of discussing the affect of stiffener, established four different specimens, and elaborated the affect of stiffener on link based on achieved test researches

    因此,本文對耗能梁段進行進一步計算,概述耗能梁段對體性能的影響,並利用有限元程序ansys對耗能梁段進行數值計算:針對耗能梁段的屈服類型建立5種不同長度的模型,計算討論耗能梁段屈服類型的長度劃;針對耗能梁段腹板高厚比、翼緣寬厚比以及梁段截面形狀等因素建立了18種模型進行計算;針對加勁肋對耗能梁段的作用建立了4種模型,並結已有的試驗闡述了加勁肋對耗能梁段的影響。
  3. Nevertheless, in these approaches the contact intethee are charactered sboly ed stiffeess k. and k. " which is not perfect and rigorous in thc vitw of solid mechanics and rather rough for the description of the behavior of the idtfores. in collbet, taken as a contact problem, the principal chatrs of the idtcthees can be reflected : ( l ) the cbntact inifore is of shear strength which implies tha a generic pair of contact points on the inidse will displace coincidentally if the tangential fbrce at this point has not reahed the 1imit resistance, else, relative s1ide betwee the points will occur along the tangental direction. ( 2 ) no matter the relative slide occurs or not, the contact bodies cannot invade each other in any wise

    本論文在對這兩種方法進行認真的后,說明它們對不連續面的描述並不理,也無法反映出不連續面的主要力學特性,同時指出,將帶有不連續面的巖土工程問題作為接觸問題計算更為理,它可將不連續面受力變形的主要特點反映出來,即: ( 1 )接觸面具有相應的「抗剪強度」 ,即當接觸面上某一點處的切向應力小於該點處的抵抗強度時,點對同變形;達到強度時,則沿切向發生相對滑動; ( 2 )在個變形過程中,發生接觸的變形體不能相互侵入。
  4. The flow diagram of a lpg bottle paint - drying heating system using heat carrier as heat - medium, which has similar properties as other heat - carrier heating systems, has been improved, which has good effect in avoiding oil - spraying, shortening dehydration time and power - fail protecting etc. after making a series of analysis, calculational methods of expansion tank dimension have been deduced, which takes the moisture boiling - off of heat carrier into account and accords with real conditions

    對與其它熱載體加熱系統具有性的鋼瓶熱載體加熱系統的流程圖進行了改進和完善,在防止噴油、縮短脫水時間和停電保護等方面取得了良好效果。通過理出了熱載體加熱系統膨脹器容積的計算方法,該方法考慮了熱載體所含水汽化而帶來的影響,比原有的計算方法更加符實際。
  5. Contract law introduces the anglo - american conception of partially disclosed principal and undisclosed principle to solve the problem. the civil legal relationship between freight forward, principle and the third party was stipulated by civil law and contract law. the lecture lays the emphasis on trust contract ; trust relationship and each party ' s liability. freight forward acting as an independent operator, concerning practical condition included two contract and two bills of lading

    《民法通則》和《同法》同調國際貨運代理人與被代理人、第三人之間的民事法律關系;本文在論述的過程中對委託關系、委託同、國際貨運代理人與被代理人、第三人之間的關系重點進行了論述,對國際貨運代理的權利義務進行了
  6. Combining this with the relevant theory of data warehouse and cyc technology, we put forward the dualization reform model to a traditional enterprise and the knowledge transfer strategy based on this model. we also build the intelligent crm information structure model based on data warehouse and cyc technology, and propose the ksp ( knowledge service provider ) operation mode about knowledge sharing and cooperative reasoning between enterprises for the first time, and thus get the whole train of thought about constructing " k - business platform " on the basis of organization and technology. this train of thought expounded the leading thought of this paper, including setting up a s upport environment of successful implement and operation for crm, making crm system able to help enterprises achieve more high - level business intelligence ( bi ) and support the crosswise development of enterprises

    然後通過對現代企業組織設計原則及發展趨勢的,結數據倉庫、 cyc技術的有關理論基礎,提出了傳統企業組織結構的二元化改造模型以及在此基礎上的企業知識轉移策略,並構造了基於數據倉庫和cyc技術的智能化crm信息結構模型,首次提出企業間知識享及作推理的ksp ( knowledgeserviceprovider ,知識服務提供商)運作模式,從而形成了在組織和技術兩大基礎上構築「知識商務平臺」的體思路,闡明了在企業內建立crm系統成功實施和良好運作的支撐環境,並使crm系統能夠幫助企業實現更高層次的商業智能( bi )和支持企業的橫向聯發展的主導思想。
  7. 21 " s century is the century of ecology together with sustainable development, is the century of mankind lift environment quality of dwells among the entire system of dwells environment, it is a significant sub system that student resides district in university implement the strategy that our country is developed vigorously in science and technology education, and possess more and more young man to go away into the university school grounds, but student resides district environment improvement and the ecology technique application possess the important sense the dissertation based on living to sum up the history course of change and development of student resided district in home and abroad university and the ecology architecture theories, and analysed the problem on the ecology environment of student resides the district o the relationship that the improvement of dwelld environment in university together with the establishment of ecology view and ecology technique application was elaborateed by the dissertation, and stressly analysed plan - design of ecology technique rule the dissertation obtained the conclusion ought to adopt to " appropriate technique " ecology design measure in student resides district at the moment our country, and not only be able to thrift investment but also be able to acquire well ecology benefit

    在人居環境個大的系統之中,高校學生住區是一個重要的子系統。隨著我國科教興國戰略的實施,有越來越多的年輕人走進了大學校園,而學生住區環境改善和生態技術的應用就有著多重的意義。論文在總結了國內外高校學生住區的歷史沿革和生態建築學理論的基礎之上,了我國高校學生住區在生態環境上存在的問題,闡述了高校學生住區的人居環境的改善與生態觀的建立與生態技術應用的關系,重點了高校學生住區體規劃和單體設計的生態技術原則,從學生住區的結構文脈、公交往空間、體居住環境、規劃的生態方法、單體的綜生態技術應用、地下空間的開發利用、生態景觀設計等多個方面,提出了多項「適宜技術」的生態技術應用措施,得出了就目前我國的國情應在高校學生住區設計之初採用多種「適宜技術」的生態設計手段,既能節約投資又能取得良好生態效益的結論。
  8. According to the background information from the above, the facts of the combination, expansion and quick development of wut, and the strategic significance of the world ' s economy and the development of university, and from the angle of history, reality and the future, to a large degree, this paper analyzes three strategic environment faced by university, that is : intellectual economy and the world ' s new technical revelation ; marketing economy and modernization of china ; the popularity of education and the reform of chinese higher leaning system. through a thorough analysis of thirty six comprehensive universities and science and engineering colleges owned by the national education department, and through comparison between typical universities, this paper also objectively analyzes the strength and advantages of the development of wut on the aspects of subjects, trade and scale, and the disparity existed in subject strength, scientific and technical ability, qualified personnel construct and the economic base. through those analysis, it points out several problems in the development of university, such as " no common idea, no complementary subjects, no fixed core, no unified campus " and etc. therefore, a basic conclusion is drawn, that is " generally speaking, wut ranks among the second class of the nation ' s higher learning groups, and which possesses many potentialities to help itself step into the first class universities

    本課題正是從上述背景出發,緊密結武漢理工大學併、擴招和大發展的實際,從世界經濟和大學發展的高度,從歷史、現實和未來的角度,大范圍、多層面、寬視野地了學校發展所面臨的知識經濟和世界新技術革命、市場經濟和中國現代化建設以及教育大眾化和高校管理體制改革三大戰略環境,通過對育部所屬36所綜及理工類高校的和典型大學的個案對比,比較客觀地了學校發展在學科、行業和規模三方面的實力與優勢以及存在的學科實力、科技能力、人才結構和經濟基礎等四方面的差距,指出了學校發展中「無同的理念、無互補的學科、無凝聚的核心、無統一的校園」等問題,並得出一個基本結論:學校總體位居全國高校第二集團水平,具有向一流大學邁進的基礎,同時,相比國內一流大學又有很大的差距。
  9. This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored

    二值化時對體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論,特別對利用空間信息進行閾值選取進行了詳細論述;在對通過對基於數學形態學的細化的基礎上,討論序貫同倫形態細化演算法和保形的快速形態細化演算法;然後依據聯機字元識別原理框圖,了手寫數字的結構特點,提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級類器任意手寫數字在線識別技術,對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、字匹配的距離準則進行了詳細敘述;繼而在對手寫數字的割的基礎下對脫機手寫數字識別進行了研究,對基於最小距離類器字元識別、基於樹類器的字元識別、基於自適應振( art )網路的字元識別別進行了詳細討論,並引入置信度將多個類器進行了混集成;最後簡單闡述了手寫數字識別的典型應用,對其在大規模數據統計、財務、稅務、金融及郵件揀中的應用進行了探索。
  10. This paper adopted analytic hierarchy method compared the theory of small towns in china from five aspects, disclosed the process of the development of small towns, generalized eight aspects of the developed theory in foreign small towns, it contains region integration idea, centro theory, grow polar - nucleus theory, sustainable development theory, desakote theory, new town theory, shared space theory and idio - centre development theory

    文章採用層次法對我國已進行的小城鎮發展理論從五個方面作了比較,揭示出小城鎮在我國的發展進程,總結了國外小城鎮發展理論有8條,即區域思想、中心地理論、增長極核理論、可持續發展理論、灰色區域理論、新城鎮理論、享空間理論和自中心發展理論。
  11. The thesis analyzed the present transferring status between pudong airport and shanghai " s incity. through forecasting the long - dated flux of pudong airport and the area near it and combining the planning scheme of shanghai urban rapid mass transit, the thesis learned the helpful experience of the traffic organization in typical airport abroad and used the scientific analyzing model of public traffic flux forecasting to put forward some reasonable suggestion of the bottleneck question between pudong airport and incity : the one is to use the present no. 2 subway as the future airtrain to take on the most part of the flux and meantime present the concept of feeder efficiency to quantitative analyze the choice of feeder station ; the other is to set up cat ( city air terminal ) to convenient the passenger to come airport rapidly and economically in order to lessen the pressure of the traffic and improve the whole service quantity of civil aviation transportation

    本文了浦東機場與市內目前的換乘現狀,從預測浦東機場及緊鄰空港區域中遠期的客流量入手,結上海市政府快速軌道交通的規劃方案,並且學習境外典型機場交通組織的有益經驗,利用規劃中的公交客流預測等科學模型,對浦東機場與市中心的軌道交通銜接提出了理的建議:一是利用目前的地鐵二號線作為航空軌道享線來承擔大部進出空港的客流,並且給出了以接運效率最大化為目標函數的接運公交軌道站點比選模型;二是在市中心設立城市航站樓以方便旅客快速、經濟地到達機場,從而減少道路交通壓力,提高航空運輸的體服務質量。
  12. In knowledge and economic time, the life - or - death relationship between enterprises is replaced by win - win strategy cooperation relationship between supply chains. supply chain meets the quickly changeable demands of markets and customers with faster and more flexible agile methods. this paper addresses supply chain information - flow model based on eim ( enterprise integrated model ) and builds the overall criterion of enterprise data resource and the methods of data resource processing after analyzing the disadvantages of information share and information integration in traditional supply chain

    本論文針對知識經濟時代,企業之間競爭博弈關系已經被供應鏈之間雙贏的戰略作夥伴關系所代替,供應鏈以敏捷方式滿足市場和顧客的快速變化需求的特點,在傳統供應鏈存在信息享和信息集成缺陷的基礎上,提出基於企業體模型的供應鏈的信息模型,建立企業數據資源和數據資源處理方法的全局規范,解決數據冗餘和數據處理方法優化等問題。
  13. The analysis of the large - scale synoptic situation shows that strong precipitation is closely related to the explosion of monsoon and the intensification of cross - equatorial flow which bring a lot of vapor and meet with cold masses at the eastern of northwest district on 8th, june causing extremely heavy rainfall ; that subtropical high - level jet at 200hpa, subtropical high at 500hpa and low - level jet at 850hpa are the weather backgrounds favorable to strong precipitation ; that the pattern of eastern highs and western lows and the establishment of a low - level jet and the coupling between upper - and low - level patterns that determine that the rain occurred in the east of the northwest china ( on average, this is the rainy season for the south of china, but not for the northwest china ) ; that water vapor comes from southerly and easterly flow which converge at the eastern of northwest district with convergence mainly in lower levels and pbl ; that the high value of the whole - level apparent heat source < q1 > is near the area of large rainfall in the direction of northeasterly - southwesterly agreeable to shear line very well and the condensation latent heat releasing is main heat source with vertical advection item playing key role in q1 and q2 ; that there is a vertical secondary circulation crossing low - lever jet whose ascending branch is at the area of large rainfall ; that the construction of convection instability and conditional symmetry instability results that there is not only deep thermal instability, but also moisture influx and triggering mechanism of thermal instability causing strong torrential rain

    作為對比,本文還對2002年6月24 - 25日發生在北京地區的強地形雨進行了,並討論陜南、北京地區兩地暴雨的異同點以及地形作用的性和個性,為兩地暴雨預報提供有益的參考,得出了一些很有意義的結果: 1大尺度環流背景表明: ( 1 ) 「 02 . 6 」強降水與6月上旬越赤道氣流和季風爆發密切相關,攜帶大量水汽的偏南氣流與冷空氣於6月8日交匯在西北地區東部,導致了這次強降水的發生; ( 2 ) 200hpa的副熱帶西風急流、 500hpa副高以及850hpa的低空急流的配置非常有利於本文之陜西強降水的發展與維持。大尺度形勢表明,東高西低形勢場、低空急流的建立和高低空形勢的配置決定了這場降雨出現在西北地區東部。與暴雨區相聯系,存在一支橫越低空急流的經向垂直環流,暴雨區處于該垂直環流的上升支; ( 3 )偏南和偏東氣流水汽通道在西北地區東部交匯,水汽的輻積聚主要在對流層低層和行星邊界層內完成; ( 4 )層的視熱源< q _ 1 >高值區在暴雨區附近呈東北-西南向佈,與切變線走向非常一致,降水產生的凝結潛熱釋放是強降水區大氣的主要熱源。
  14. And then, thesis explicates the reasons of the difference from five aspects including natural resource, area conditions, labor conditions, technical conditions and industry structure. furthermore, the thesis points out that the sustainable utilization of natural resource, the adjustment of labor structure, improvement of labor qualities, the employment of advanced science and technology and reasonable industry structure are critical to the improvement of rural economy ' s integral, power and comprehensive competition. at last, this thesis puts forwards a series of policies and countermeasures, such as accelerating urbanization of villages of villages to develop increasing pole, enchanting agricultural, industrialization to strengthen the industry foundation, improving the help and development policies to the poor to strengthen the district economic cooperation and the coordination effect by decreasing the limits of the poor, and so on, which can encourage each area display its advantage and supply what the other needs and make the rural economy coordinated and commonly flourishing

    根據結果將11個市劃為省內發達區域、中等發達區域和不發達區域三種類型,將138個縣(市)劃為由高到低七個等級;對差異產生的原因從自然資源、區位條件、勞動力條件、技術條件、產業結構等五個方面進行了系統探討;並從更深層次上指出,土地等自然資源的可持續利用,勞動力構成優化、素質提高,先進科學技術的適用,產業結構的理布局等對農村經濟的體實力和綜競爭力的提高起決定性的作用;最後,在河北省農村經濟協調發展的角度,提出了「因地制宜,揚長避短;優勢互補,同發展」的指導思想和「鼓勵先進,鞭策后勁;區域聯動,全面協調」的基本原則,並進一步提出了加大小城建設? ?培養增長極,推進農業產業化經營? ?強化產業基礎,改善扶貧開發政策? ?降低后勁制約以及加強區域經濟聯? ?增強協調效應等綜措施。
  15. The article discussed the characteristic and the present situation of district public library ' s electronic reading - room, analyzed and concluded that realizing the arrangement of resources, individual services, characteristic web - sites, cooperation among libraries and librarians ' professionalism are the fundamentality of existence and development to the district public library ' s electronic reading - room

    摘要本文從區縣級公圖書館電子閱覽室的特點及現狀入手,提出實現資源化、服務個性化、網站特色化、館際協作化、館員專業化是區縣圖書館電子閱覽室生存與發展的根本所在。
  16. This paper is consisted of two major parts : one deals with the general working performance of the fmghp by setting up mathematic model and developing computer procedure, getting the datum related to the capillary flow and heat transfer, analysing the working characteristics of fmghp in different working temperature, heat flux and inclination angle etc. in this part, the prediction of capillary and boiling limit are also included. the other major part studies the flow and heat transfer characteristics in the micro - film region formed by the meniscus attached on the metalic fin in the micro rectangular groove. investigations on the influence of width of groove and other factors on heat transfer in this region have been made. the importance of this micro - region in the heat transfer of the entire heat pipe has been unveiled. the heat transfer characteristics gotten by this research could be used in design and application and also optimization of this kind of fmghp

    本文在大量查閱現有國內外文獻的基礎上,總結並綜前人有關微槽平板熱管理論研究方面的成果,對單面刻有槽道的微槽平板熱管進行了較為深入和細致的研究。本文的研究兩大部,其中第一部考察了該型熱管的體工作表現,通過建立數學模型和開發相應的計算程序,得到了熱管內部毛細流動和傳熱的數據,了熱管在不同工作傾角、不同加熱熱流以及不同工作溫度等情況下工作特性的變化規律,考察了汽液界面上的剪切作用對熱管傳熱量的影響,並且進一步在理論上預測了該型熱管的毛細和沸騰極限。
  17. Based on the computer simulation technology, the simulating training means is increasingly taken seriously. according to the instance of the system nowadays, this paper mainly analyzes the using of marine police vessel simulating system in experiment teaching of vessel command specialty, unit training in marine police, and the application fields in economic construction. and then discusses the significance about integration and sharing in equipment, personnel, information, etc. in the system

    基於計算機模擬技術的模擬訓練日益得到重視,該文根據海警艦艇模擬系統的裝備情況,主要模擬系統在艦艇指揮專業實驗教學、海警部隊訓練中的應用,以及在經濟建設中的應用領域,討論在模擬訓練中設備、人才、信息等資源享的重要性。
  18. Abstract : based on case studies of several metropolitan area plans in western countries, the paper outlines key points and corresponding ideas of contemporary metropolitan areas planning abroad, stresses the ideas we can learn from including global competition strategy, smart and sustainable spatial growth, integration of traffic and land use, human development, regional coordination and intergrowth, implementation policies and methods

    摘要:本文以若干國外大都市地區規劃實例為基礎,綜了當前國外大都市地區規劃的重點內容和對策思路,提出區域發展的目標導向、空間集聚集約發展、交通和土地利用、人的發展需求、區域協調生、區域政策和實施機制等,值得我國同類規劃借鑒。
  19. This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization

    體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的同作用;臺後土抗力升溫時採用靜止土壓力加彈性土抗力,降溫時採用主動土壓力;橋梁受力性能時考慮了結構自重、車輛荷載和季節性溫變荷載的作用。以一座橋長100mpc半體式橋臺無縫橋梁為實例,採用大型通用軟體ansys建立平面框架模型,進行彈性、大變形,模擬全橋受力和變形特點;同時建立與此對應的有伸縮縫橋梁和體式橋臺無縫橋梁有限元模型,通過三種橋型同步加載對比,研究半體式橋臺無縫橋梁獨特的受力特點和結構性能,總結其設計控制因素和構造要求。通過本文研究知:半體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近,結構體剛度增大,併除去了伸縮縫病害;但主梁增加了軸力,下部結構剪力、彎矩較梁式橋大;綜是一種受力理有實踐和推廣價值的橋型。
  20. Abstract : polyphenylacetylenes were synthesized by rn ( nbd ) cl 2 and wcl6 / ph4sn catalyst systems in n2 at room temperature. polymers with high yield and high molecular weight were obtained. their structures were characterized by uv, ir, nmr and gpc, respectively. the fluorescence of the polymer solution with different concentration was investigated using variable excitation wavelength from uv to visible region. the relation between fluorescence and polymer structure was studied. the results showed that the molecular chain structure has great influence on fluorescence of the polymers. the emitting peak wavelength of fluorescence for the polymer of high stereoregularity is independent of solution concentration and excitation wavelength. the emitting peak wavelength of fluorescence for the polymer with disordered molecular chain arrangement varies with changing the solution concentration and excitation wavelength, and different emission sites in molecular chains and low emitting yield are shown. the measurement and analysis of fluorescence spectroscopy of polyphenylacetylenes may provide some useful information to judge the molecular chain arrangement in some conjugated polymers

    文摘:使用有機金屬銠、金屬鎢/四苯基錫催化劑體系聚苯乙炔,別獲得了高產率和高子量的聚苯乙炔.使用uv , ir , nmr , gpc等別對聚物結構進行了表徵.採用不同波長的激發光對聚物熒光性能進行研究,詳細了聚物結構與熒光性能之間的關系.研究結果發現,不同聚物結構對聚物熒光性能產生很大影響,規性高的聚物,將有較高的發光量子效率;聚物規性差,將可能導致多個熒光發光結構點,其熒光強度降低.聚物熒光光譜研究將對某些軛聚物結構的規提供一些有用的信息
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