等候理論 的英文怎麼說
中文拼音 [děnghòulǐlún]
等候理論
英文
queueing theory-
Under the incentive of the civil - market demanding such as laser material processing and the military - market demanding such as a new generation of laser weapon candidate and icf, diode - pumped solid laser ( dpsl ) develops rapidly worldwide. as an important application, diode - pumped intracavity - frequency - doubled laser is attached much importance in recent years, but there still remain many problems unresolved completely. in this paper, i have given some abecedarian study results on some of these problems theoretically and experimentally
因工業激光材料加工等民用市場的需求以及慣性約束聚變和作為新一代激光武器候選器件等軍方需求的推動,國際上高功率二極體泵浦固體激光器( dpsl )的研究進展迅速,作為dpsl的一個重要應用,內腔倍頻一直得到大家的重視,但仍有許多未徹底解決的問題和理論上的不完備之處,本論文擬對其中的一些問題作一初步的理論和實驗研究。On the basis of foreign documents, the dissertation firstly describes the morphology, taxonomy, and biological characters of cochineal insects. then, by using artificial climate cases in the lab, according to orthogonal design, 8 lands of combinations of temperature, humidity and light is set, while the temperature has four levels : 15, 20, 25 and 30, and the relative humidity has two levels : 60 % and 80 %, while the light also has two levels : 980 lux and 60 lux. through observations and analysis of hatching percentage, survival percentage of the first instar and during from the second instar to the adult, the population tendency index, generation life cycle, size and eggs of female adult, the development of the cochineal under different conditions is studied
在收集、整理國外對胭脂蟲的研究資料基礎上,首先從胭脂蟲的形態學、分類學、生物學特性入手,進而在實驗室內利用人工氣候箱,應用正交設計方法,設計了4種溫度、 2種濕度、 2種光照梯度的不同組合,通過測定胭脂蟲的孵化率、 1齡若蟲的存活率、 2齡若蟲至成蟲期存活率、種群趨勢指數、世代歷期、雌成蟲的大小、懷卵量等生物學指標,深入研究胭脂蟲在這些組合下的生長發育狀況,應用數理統計方法,分析出溫度、濕度和光照對各項生物學指標的影響,找出胭脂蟲適宜的室內培育條件,並為野外胭脂蟲的培育提供一定的理論依據。According to geologic basement, it can be divided into stable - floor planation surface and active - floor planation surface. according to climate zone, it can be divided into pediment and pediplain, double leveling surfaces and etchplain, peneplain and cryoplain
夷平面理論研究與初步模擬? ?中文摘要影響夷平面形成的主要因素有前期大地構造、侵蝕基準面、氣候、巖性、時間和後期構造運動等。Research of this paper opens out enclosing the subject that m & as and reconstruction of public companies can help to realize resource collocating of securities market, advance quality of public companies, and promote the optimization of structure and function of stated - owned economy. the paper researches how to change the financial and speculative reconstruction at present to the strategic and material reconstruction aftertime. firstly, the author proves the feasibility of m & as and reconstruction that conduces to advance management efficiency of companies and efficiency of securities market in theory, and emphasizes on some conceptions which have certain differences between westward m & as and reconstruction market and ours
西方的並購重組理論為我們提供了一定的思考的角度,其中比較有代表性的有效率理論,從管理、經營、財務的協同效應和多元化經營、戰略重組等方面解釋了並購重組對改善企業經營管理的可能性;代理問題理論,把並購重組作為解決企業委託代理問題的一個外部機制,即當由於公司管理層的無效率或代理問題而導致公司經營管理業績不佳的時候,公司就可能面臨著被收購的威脅;信息與信號理論,認為並購重組信息向市場傳遞了有關公司管理、股票價值、資本結構等方面的信息,從而引起公司的市場價值被重新評估,導致股價波動。In this thesis which is guided by sustainable development and theory of system analysis, we analyzed the character of city biogeocenose and some problem in it at present, cognize city lawn is provided with ecological environment of beautify and virescence environment, adjust climate, fasten soil and preserve water, purify and monitor environment and so on
本文在可持續發展理論、城市生態學理論和系統分析理論的指導下,分析了目前城市生態系統的特徵及存在的問題,認識到城市草坪具有美化綠化環境、調節氣候、固土涵水、凈化和監測環境等生態環境效應。Through analyzing in theory and proving in practice, this paper indicates that the module - control system have many merits : the develop cycle is short ; the application of room is sufficient ; the problem will be found easily in the process of debugging ; the capability of anti - jamming is strong ; maintain and check errors easily ; interchangeability is good ; upgrade is easy
通過理論分析和實踐證明,本文認為模塊化控制具有開發周期短、充分利用空間、在調試的時候容易發現問題、抗干擾能力強、容易維修和檢查錯誤、降低維修成本、互換性強、容易改進和升級等優點。Based on the theory of retrieving lst through satellite remote - sensing and the characters of semi - tropical climate, topography, vegetation and the noaa / avhrr data in guangxi, the split - window algorithms for retrieving the lst from space, including the kerr algorithm, the becker & li algorithm, the qin algorithm, the franca & cracknell algorithm and some others, were analyzed and compared
根據利用衛星遙感資料反演lst的理論方法,結合廣西現有的衛星資料及亞熱帶氣候、地貌、植被等特點,對國內外的kerretal演算法、 becker & li演算法、 qinetal演算法和franca & cracknell演算法等10多種反演lst的分裂窗演算法及其相關的參數估算方法進行了適用性分析,得出採用輻射率模型中的beckerandli演算法計算廣西白天的lst比較適用。To this area precipitation materials for many years, evaporate materials, surface flow materials, hydrometeorological materials, hydrogeological materials carry on exhaustive analysis, have analysed the state of water resource of the sand district, proceed from the heat of the earth ' s surface is balanced, water yield balanced basic theories, combine the amount of regional water resource set up of the materials, such as scene, hydrology, soil of the sand district, etc. and estimate models, have calculated the surface water, groundwater of this area, has carried on models to examine according to the real data, and has predicted to the state of water resource under different climate change scenes of future that analyse. have put forward the scheme that the water resource in this area utilized rationally, use the non - linear motive force model to predict the precipitation, utilize the materials of actual observation, the natural supply amount of calculating out groundwater of sand ground of balanced principle of the amount of water used at the same time, and can exploiting amount predict to groundwater, district of sand,
本文以寧夏半乾旱地區鹽池縣沙地水資源為研究對象,對該地區多年降水資料、蒸發資料、徑流資料、水文氣象資料、水文地質資料進行了詳盡的分析,分析了沙區的水資源狀況,從地表熱量平衡、水量平衡的基本理論出發,結合沙區的氣象、水文、土壤等資料建立了區域水資源量估算模型,計算了該地區的地表水、地下水,根據實際資料進行了模型檢驗,並對未來不同氣候變化情景下的水資源狀況進行了預測分析,提出了該地區水資源合理利用的方案,運用非線性動力模型對降水量進行預測,同時利用實際觀測資料,運用水量平衡原理計算出沙地地下水的天然補給量,並對沙區地下水可開采量進行預測。Abstract : in this paper, the major problems in water resources, flood and drought, and water environment in china are analysed, and new subjects of study on hydrology are pointed out, including the uncertainty of hydrological phenomena, the effect of human activities on hydrology, the calculation of water level frequency, the optimum effcet of water resource development and utilization, the analysis of water supply and demand, the mechanism of water - saving agricultural irrigation, flood and drought prevention, etc
文摘:從水資源開發利用與保護、水旱災害防治等方面論述中國當前存在的主要水問題:水危機和水浪費同時存在、水污染日趨嚴重、防洪減災任重道遠、生態環境破壞嚴重、全球氣候變暖產生不利影響;進而論述水文學研究面臨的新課題:水文現象的不確定性、人類活動對水文的影響、水位頻率計算、水資源開發利用的最佳效應、水資源供需分析、農業節水灌溉機理及水旱災害的防治,並指出必須加強對這些新課題的研究Sparedescription : in this paper, the major problems in water resources, flood and drought, and water environment in china are analysed, and new subjects of study on hydrology are pointed out, including the uncertainty of hydrological phenomena, the effect of human activities on hydrology, the calculation of water level frequency, the optimum effcet of water resource development and utilization, the analysis of water supply and demand, the mechanism of water - saving agricultural irrigation, flood and drought prevention, etc
描述:從水資源開發利用與保護、水旱災害防治等方面論述中國當前存在的主要水問題:水危機和水浪費同時存在、水污染日趨嚴重、防洪減災任重道遠、生態環境破壞嚴重、全球氣候變暖產生不利影響;進而論述水文學研究面臨的新課題:水文現象的不確定性、人類活動對水文的影響、水位頻率計算、水資源開發利用的最佳效應、水資源供需分析、農業節水灌溉機理及水旱災害的防治,並指出必須加強對這些新課題的研究The weather analysis and climatic characteristics of the heavy - hard rainfall in this area, structure characteristics during the rainstorm, the mechanism and structure of mesoscale systems bringing rainstorm and etc. are studied by conducting diagnostic analysis, theory of dynamics and numerical simulation. the influence on the rainstorm causing by mesosc ale topography piling on the plateau, the particular valley topography in northeast plateau and complex surface vegetation are researched by numerical experiments
本論文試圖採用診斷方法、診斷和天氣動力學理論相結合的方法、數值模擬等方法對高原地區大到暴雨的天氣、氣候特徵,暴雨產生時的物理量場特徵、產生暴雨的中尺度系統的發生機理和結構特徵等方面進行研究,對疊加在高原上的中尺度地形、高原東北部特殊的外流河谷地形及復雜下墊面性質對暴雨的可能影響進行數值試驗,以揭示高原暴雨發生發展的物理機制。It is built as an open platform for scientific research on groundwater circulation at different scale, resource and environment effects, water - salt flux variation at interface and effects on the global climate induced by human activities, assessments of regional groundwater and the detective technology, isotopes during the groundwater evolution, numerical simulation and predict technique
發揮我所尖端科研資源優勢,建設開放式創新研究平臺,主要支持開展不同時空尺度地下水循環演化過程、資源與環境效應及其動力學,層圈間不同界面水鹽通量變化及其對全球氣候變化和人類活動影響的響應機制,區域含水層系統探測技術與評價理論,地下水演化的同位素與數值模擬、預測技術等研究。By studying the ancient barrier lake sediments, this paper mainly probes into the ancient climate evolution rule of more scale and less from twenty - two thousand to ten thousand years before present, diexi, minjiang river. moreover, influences to lower reaches of minjiang river is simply discussed because of die out of the ancient barrier. the using correlative theories in this thesis are mc chronology, sedimentology, isotope geology, environmental geology, geomorphology
本論文運用~ ( 14 ) c年代學、沉積學、同位素地質學、地貌學等學科的有關理論,通過對岷江疊溪古堰塞湖湖相沉積物的研究,採用沉積物碳酸鹽碳氧同位素等多環境代用指標,研究岷江疊溪地區距今約22千年10千年古氣候演化規律,討論了古堰塞湖形成演化過程與地質環境的相關性。The preface of this paper introduce the increasing new risks which provides the playground to catastrophe insurance securitization. chapter 1 describes the development and theoretical resource of catastrophe insurance securitization. chapter 2 states the increasing catastrophe risks and the challenges to traditional reinsurance, as well as the effects that produced by catastrophe insurance securitization. chapter 3, the main part of this paper, mainly discusses the several insurance derivatives. the main part discusses the several insurance derivatives produced by the securitization of catastrophe insurance : and etc, including the constructures operation advantages and disadvantages and the key factors of the dealing success
本文的緒論部分介紹了新興風險的不斷涌現及其對巨災保險證券化所提供的背景;第一章介紹了保險證券化的發展及其理論基礎;第二章論述了巨災風險不斷擴大的趨勢下巨災風險對傳統再保險所提出的挑戰和巨災保險證券化對傳統再保險的影響;其主體部分即第三章主要論述了巨災保險證券化所產生的幾種保險衍生型產品:巨災債券、巨災期權、氣候期貨與期權以及其他幾種衍生型產品,包括其結構、運作、優缺點及其交易成功的關鍵因素等方面。The main contents of althusser ' s epistemology include symptomatic, problematic, epistemological rupture, theory practice as well as the viewpoint that marxism is unempirical
摘要阿爾都塞認識論的主要內容包括癥候閱讀法、問題式、斷裂說、理論實踐、馬克思主義是反經驗主義等觀點。The subject of this dissertation is three - leg intersections with unsignalized control in highway system. there are two main objectives : one is to discuss crashes statistical characteristics and carry out a method to predict safety performance. the second one is that make further discussion on crashes inherent mechanism, especially on relationship between of driving behavior, waiting time and acceptance gap
本文研究的目的主要有兩個:一是探求交叉口事故的統計特性,提出預測交叉口安全性能的模型;二是在這個模型的指引下,進一步在理論上探討交叉口事故和違章的機理,重點探討可接受間隙、等候時間與駕駛行為三者之間的關系,從視距設計、控制和管理對策上提出避免高危駕駛行為的設計方法。Acceding to the theory of crop water requirement, maximum potential evapotranspirations are calculated by applying fao penman - monteith method, and then we obtain the water requirement, water balance and water correction factors ect. of main crops ( spring maize, summer maize, spring wheat, winter wheat, cotton ) and different type grasslands, and the space - time distribution regularities of water requirement of cropland and natural grassland are analysed, the result show : the water requirements of same kind crop in different areas are different, water satified degrees are different to different crops in the same area, and water requirement of same crop are different between years for climatic variation ; the water requirements of main crops are increasing from east to west and from south to north, water satified degrees are decreasing from east to west and from south to north. in growing season, there are deficits in crops water supply in most area, so the irrigation is needed to meet the requirement for crop growing normally
根據作物需水的理論和方法,採用計算精度較高的faopenman - monteith方法( 1998 )計算了半乾旱區最大可能蒸散,並基於此計算五種主要旱地作物(春玉米、夏玉米、春小麥、冬小麥、棉花)和不同類型的天然草地的需水量、水分盈虧、水分訂正系數等,分析了農田和天然草地水分供需的時空分佈規律,結果表明:不同地區同一種作物的需水量是不同的,同一地區對不同作物的水分滿足程度是不同的,而且同一種作物在同一地區隨著氣候的變化需水量也會有一個年際變化;主要作物需水量由東向西,由南向北遞增,正常生長發育的水分保證程度由東向西,由南向北遞減。Meanwhile, the evaluation has changed from a single aspect su ch as vegetation and soil to a comprehensive evaluation including deterioration of environment and degradation of soil morphology and fertility. studies on a theoretical basis and basic principle for restoration and reconstructions. the study on benefits and functions of a restorated ecosystem
恢復與重建的生態系統功能與效益的研究,其效益評價由生物多樣性、水土保持功能、土壤養分、小氣候等單一方面轉向利用灰色系統理論及系統工程方法進行綜合評價。The european journal of agronomy, the official journal of the european society for agronomy, publishes original research papers reporting experimental and theoretical contributions to crop science in many fields, such as crop physiology, crop production and management, agroclimatology and modelling, plant - soil relationships, crop quality and post - harvest physiology, farming and cropping systems, and agroecosystems and the environment
描述: 《歐洲農學雜志》是歐洲農學會的會刊,刊登有關農作物科學方面的實踐性與理論性的原創性文章,涉及作物生理學、作物生產與管理、農業氣候學與模擬、植物與土壤的關系、作物質量與生理學、耕作與作物系統及農業生態系統與環境等學科。This paper discusses some theoretical issues in the following aspects : methodology, climatic model, climatic change and climate prediction
提出和討論了氣候學研究中存在的一些理論問題,包括氣候學研究方法,氣候模式,氣候變化和氣候預報等。分享友人