推進系統質量 的英文怎麼說

中文拼音 [tuījìntǒngzhíliáng]
推進系統質量 英文
propulsion-system mass
  • : 動詞1 (向外用力使物體移動) push; shove 2 (磨或碾) turn a mill or grindstone; grind 3 (剪或削...
  • : 進構詞成分。
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
  • : Ⅰ名詞1 (性質; 本質) nature; character; essence 2 (質量) quality 3 (物質) matter; substance;...
  • : 量動1. (度量) measure 2. (估量) estimate; size up
  • 推進 : 1 (推動工作 使前進) push on; carry forward; advance; give impetus to 2 [軍事] move forward; dri...
  • 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
  • 質量 : 1 [物理學] mass 2 (產品或工作的優劣程度) quality 3 economy (離子源的); 質量標準 quality level...
  1. It further discusses the operation mechanism of the system of agrotechnical diffusion and indicates that the essence of technical diffusion is information diffusion, and the system depends on the course which information flows from the fountainhead to the receivers. and it analyzed the ingredients which influence the information flowing in the system. intruding shannon ’ s information

    一步探討了農業技術擴散的運行機制,並指出,技術擴散實是信息的傳播,是建立在信息從信息源到接收者之間的流動過程,對技術中影響信息流動的因素行分析,引入shannon的信息熵計算方法,對信息接受者的信息接收含行測度,通過對所得的數值行比較,運用定與定性分析相結合的方法證明技術廣活動的效率。
  2. At last, the conclusions of the whole thesis are drawn, and it is put forward that the future research emphases on the infrared radiation absorption ct technology should focus on : instantly get the absorption projections are the crucial factor to utilize the technology industrially ; on the basis of the hypothesis that the gas is ideal gas, species concentration of particular gas medium can be measured at the same time, which must be helpful to comprehend combustion essence ; if laser source to replaces blackbody stove, for irradiant flame, interferometric projection can be attained, and its temperature distribution will known

    最後,對全文行了總結,並指出今後研究工作重點。指出:瞬時得到各方向的投影是此技術實用化關鍵;在獲得溫度分佈信息基礎上,行必要的假設和導,能同時得到火焰中某特定組分濃度的分佈,這必將一步我們對燃燒本的理解;利用方向性好,輻射強度高的激光源代替常規的黑體爐,能得到輻射干涉投影圖像,這樣就能測所介紹不能測的發光火焰溫度分佈。
  3. The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro

    激光陀螺的核心部件為he - ne環形激光器,而掌握光與介的相互作用理論是研究激光器的關鍵,採用拉姆半經典理論為主,在密度矩陣理論的基礎上,導環形諧振腔中描述he - ne氣體增益介原子運動的光學布洛赫方程,運用介極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組,在此基礎上,運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ,對激光陀螺中的介增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性行模擬試驗研究,並且運用全子理論,對激光工作原理行分析,得出二能級單模輻射場的光子數密度分佈,得出激光場的光子計分佈,模擬激光場的動態建立過程。
  4. To add " there are many loopholes in the operation and sales practices of telecommunications service providers, " after " that, as " ; to add " and such complaints from the public are often not followed up effectively by government departments, " after " in recent years, " ; to add " stipulate corresponding penalties " after " to cover pay television, " ; and to add " ; furthermore, as the hong kong housing authority has signed agreements with pay television operators, these operators can enter the buildings to set up and maintain communal aerial systems and can deploy front - line promoters to approach the residents to sell other various commercial services, using the provision of exclusive maintenance and supply services as a selling point and adopting unscrupulous means to entice or mislead the residents into signing an agreement with them, causing great disturbance to the residents ; in this connection, the government must adopt measures to combat such sales malpractices, take the initiative to inform public rental housing tenants of the rights and responsibilities of the operators and, when the operators resort to malpractices or malpractices are reported by residents, take immediate action to investigate the matter and issue warning to and penalize the operators concerned ; the government must also review the problem of inequity in accessing system information by consumers and the telecommunications service providers, whereby consumers have no means or right to obtain true and accurate information about the systems that they are using and can only pay the fees according to the volume, system and time slots of their calls shown on the records provided unilaterally by the service providers, and in case of queries about such information, the decision of the service providers prevails and there is no channel for the consumers to dispute or verify ; to this end, the government should expeditiously study how to ensure that consumers have the rights to know, choose, verify, appeal and claim for compensation in the provision of telecommunications services including pay television, local and cross - boundary telecommunications and internet services " after " in the contracts "

    在"鑒于"之後加上"各電訊服務提供者的營運和銷售存在不少漏洞, "在"不斷增加, "之後加上"而市民的投訴又往往得不到政府部門的有效跟處理, "在"收費電視, "之後加上"訂定相應的罰則, "及在"標準合約條款"之後加上"此外,由於香港房屋委員會與收費電視營辦商簽訂協議,該等營辦商可入大廈鋪設及維修公共天線,並調派前線銷售人員,以獨家提供維修及供應服務作為招徠,向住戶銷其他各種商業服務,以不當手法誘使或誤導住戶與他們簽約,對居民造成很大困擾就此,政府必須採取措施打擊上述違規營銷的手法,並主動告知公屋住戶該等營辦商的權責范圍,遇有營辦商作出違規的行為或居民舉報營辦商的違規行為時,須立即追查,並向有關營辦商發出警告及作出處分政府亦須檢討現時消費者與電訊服務供應商所獲資訊並不對等的問題,即消費者無從及無權得知他們所選用的真實資料,令他們只能按服務供應商單方面提供有關通話通話及通話時段的記錄繳交費用,遇有消費者疑上述資料時,往往只由服務供應商作最終決定,消費者無從申辯或查證就此,本會促請政府盡快研究如何就各類電訊服務包括收費電視本地及跨境電訊網際網路等的提供,確保消費者享有知情權選擇權覆核權投訴權及索償權" 。
  5. Different equations to corresponding components are presented by analysing and transformating the general equations of fluid routes, then static characteristics mathematical model of liquid propellant space propulsion system is presented. based on the data of static characteristics calculation, mass model of thruster, propellant, propellant tank, gas, gas bottle, pipe and valve is presented using both the method of statistical regression and the method of stress analysis, then corresponding mass model is presented. based on the characteristics of liquid propellant space propulsion systems, analyse the five phases ( concept and definition, design and improvement, manufactureing and arrangement, operation and ma intenance, disposal ) in which life cycle cost of liquid propellant space propulsion systems is cost separately, then discompsed structure of life cycle cost and model of life cycle cost are presented

    將組件分成氣路組件和液路組件,再對氣路組件和液路組件行相應的分類,然後通過對通用流路方程行分析和變換對不同類型的組件分別建立不同的方程,從而建立了一個適用於液體劑空間的靜態數學模型;根據靜態計算所得到的數據,應用計回歸法和應力分析法分別建立力室、劑、劑貯箱、氣體、氣瓶以及導管和活門等的模型,從而建立相應的模型;結合液體劑空間特點,對液體劑空間全壽命周期費用發生的五個階段(概念和定義、設計和改、製造和安裝、運行和維修、處理)分別行分析,建立了液體劑空間全壽命周期費用分解結構和全壽命周期費用模型。
  6. ( 1 ) the posterior distribution of the coefficient matrix, the precision matrix and covariance matrix, and their bayesian estimation under the matrix normal - wishart conjugate prior distribution. ( 2 ) the deduction of the predictive distribution, proved to be matrix t distribution. ( 3 ) the designs of bayesian multivariate mean value control charts in terms of the relationship between the multivariate wishart distribution and x2 distribution, the bayesian process capability index and its confidence lower limi

    通過多方程模型計結構,證明了矩陣正態? wishart先驗分佈是模型參數( , )的共軛先驗分佈,研究了該先驗分佈下模型數矩陣、精度陣和協方差陣的后驗分佈及其貝葉斯估計,對模型預報密度函數行了嚴格的數學導,並將其應用於多元控制領域,構造了貝葉斯均值向聯合控制圖;結合wishart分佈與x ~ 2分佈之間的關,設計與斷了貝葉斯多指標過程能力指數及其貝葉斯置信下限。
  7. The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault , researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system , a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows : this paper compared some existing methods in excitation control , fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 , indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which , discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations , made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations , which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations , there were several very important parameters of power system - - rotor angle ( ) , rotor speed ( ) , generator q axis voltage ( eq ) , transient voltage ( e ' q ) , active power ( pe ) , mechanical input power ( pm ) , valve opening ( ) , generator terminal voltage ( vt ) , based on the model , nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault , which achieved better postfault regulation compared with another two routine methods , one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either

    在介紹逆理論的基礎上,詳細介紹了dfl理論,通過比較闡明了dfl理論其本是逆方法的一類,並結合具體課題導出的模型方程將dfl理論行了擴展,使之適應于電力這個強非線性對象。通過參考大的書籍文獻導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來行控制的模型方程,此模型方程涵蓋了電力中特別引人注目的幾個- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ,在此基礎上建立了實用的電力簡化的數學模型,並將擴展的dfl理論應用於此模型,結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器,通過模擬實驗與採用常規的按電壓偏差行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門(考慮發電機的飽和因素)行了對比,證實了採用此種控制器可以有效地提高電力的暫態穩定性,並且在電力遭受小干擾時同樣具有良好的調節性能。
  8. What the study of the software of configuration analysis of liquid propellant space propulsion systems solved is how to develop the software of configuration analysis of liquid propellant space propulsion systems using scientific software model based on the characteristics of liquid propellant space propulsion systems in order to improve the performance and reduce the mass etc. it ' s important that can save fees and improve corporation ' s ability of participating competition

    液體劑空間構型分析軟體研究所要解決的問題是如何根據液體劑空間的特點,通過運用科學的軟體模型開發液體劑空間構型分析軟體。其目的是為了提高性能、減少推進系統質量等。行液體劑空間構型分析軟體研究對于節約國家經費、提高企業競爭力有著重要的意義。
  9. ( l ) it is very important for the state repair of diesel enging in our country ; ( 2 ) it will help with the more accurate decicision of repair cycle of the engine ; ( 3 ) it will improve the combustion state of the diesel enging and will keep the oil comsume at a lower level, at the same time, it lessens the dilute of the lubricanting oill in the engine. there are still some more research work to do, for it is just the begining. the mathematic model should be made and more accurate data rule should be established

    ( 1 )為行內燃機車狀態修做準備,這在跟蹤國際機車檢修先技術上有著十分重要的意義; ( 2 )為更合理制定內燃機車的檢修周期提供實驗分析方法和數據,試驗數據作為每臺柴油機的技術資料被存儲,藉助計算機軟體可以輔助制定機車的檢修計劃,使機車的檢修工作更科學合理; ( 3 )提高機車,降低檢修費用; ( 4 )改善柴油機燃燒狀態,降低燃耗,節約運營成本,同時,可以減少燃油滴漏,降低滑油消耗。
  10. The study result of this project will promote the application of vi technology in quality inspection in advanced manufacturing system ; and improve quality inspection level, monitor and control technology level during the production process ; and enhance the ability and performance of inspecting instrument ; and then promote the integration of inspection, management, quality control efficiently. in a word, this study has good technical application value

    本項目的研究及成果將技術在先製造檢測中的應用和檢測虛擬集成測試研究西北工業大學碩上學位論文廣,一步提高檢測和製造過程監控技術以及測試儀器設備水平,增強測試計儀器設備功能、性能,有效促製造過程測試、管理、控制的一體化,具有較高的工程應用價值。
  11. Secondly, to place emphasis on the big accounts marketing conscientiously and consolidate the market share in terms of big accounts ; to give full play to the functions of big account marketing system on three levels, namely, the group, province and municipality, enhance the construction of big accounts marketing team and link the operating achievements of the big account managers with their personal income ; to build big accounts supporting system, upgrade the network quality guarantee for the big accounts, actively push the application of the " service level agreement ( sla ) " and provide individualized service guarantee

    第二,切實把大客戶營銷服務作為重點來抓,鞏固大客戶市場份額。要充分發揮好集團、省、市三級大客戶營銷體的作用,加強大客戶營銷隊伍建設,將大客戶經理收入與其經營業績行掛鉤考核。搞好大客戶支撐建設,提高大客戶的網路保障,積極行《服務等級協議( sla ) 》 ,提供差異化的服務保障。
  12. Take middle - east district of taipusi banner as study area in the paper, combining field observation test ( pumping test and field survey ) with indoor experiment ( granule analysis and organic matter analysis etc ), based on the relationship between hydrological parameters and physical - chemistry characteristic parameters of formation, the variability of aquifer parameters and physical - chemistry parameters of unsaturated zone have been also analyzed. the aquifer system of the taipusi banner is identified and analyzed by using the internal and outside information. on the basis of real pumping of ground water, the water resources evaluated by the water balance method

    本文以太僕寺旗中東部地區為研究區域,採用野外試驗(抽水試驗、實地調查)和室內實驗(顆分、有機等實驗)相結合的方法,求了研究區含水層的水文水利參數,在模擬含水層水理參數與巖性物理化學特徵參數之間的關基礎上,一步分析了含水層參數及其包氣帶的物理、化學特徵參數的空間變化特徵,並利用其內外部信息對太僕寺旗含水層行了辯識與分析;以現狀地下水開采為依據,採用水均衡法評價了研究區水資源總,並利用有限單元法來模擬分析驗證。
  13. Dynamic weighing system is as a second - order system and set it up model, then has its transform function laplace transform and z transform, at last has a formula that m is only relation to the system parameters. this article has system identified with the recursive least square ( rls ) method, and has the system parameters, while the auto - regressive - moving - average ( arma ) model for the second order weighing system is firstly derived. and has a equation which the mass is only correlation to the system parameters

    論文具體分析了定問題,首先是把稱看作是一個二階,建立數學模后,行拉普拉斯變換和z變換后得出一個僅與參數有關的關式,從而把稱問題轉化為一個參數識別問題來解決。通過編寫的程序來採集信號並行處理(運用漸消遞最小二乘法)對參數行識別,從而得出稱結果。
  14. Furthermore, utilizing the characteristic that filtering error covariance expresses filtering precision and the principle of information conservation, the dynamic and reasonable distribution of distributed tracks weight coefficient is accomplished. jerk model and strong tracking filter is organically assembled, and based on spatio - temporal synthetically analysis and lme, a self - learning estimation method of the system measurement variance is given. the method improves obviously the

    3 、將jerk模型與強跟蹤濾波演算法有機地結合,並利用時空綜合分析和極大似然估計的思想導出了一種測方差自學習修正方法,以優化強跟蹤濾波演算法中次優漸消因子和濾波增益的在線選擇,同時根據多傳感器數據融合具有改善濾波精度的性而給出一種基於jerk模型的多傳感器數據融合演算法。
  15. This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

    本文較全面、地綜述了國內外生物熱解液化制取生物燃油技術研究發展現狀及存在的問題,主要研究內容有: ( 1 )實驗、測定了20種常見生物的能(發熱)和c 、 h 、 n元素含,根據實驗結果分別建立了以h和c為自變的生物預測經驗公式,並通過r _ ( 0 . 05 )檢驗;為閃速熱解液化裝置能轉化率計算和生物利用率計算提供了依據和方便; ( 2 )選擇了8種生物試樣作了等加熱速率( 10 min 、 20 min 、 40 min 、 60 min )和恆溫加熱的tg和dtg實驗,根據實驗數據和阿倫尼烏斯公式建立了生物熱解反應動力學微分方程,並採用goast - redfem積分法和p函數對其動力學參數行了求解,解析出各種生物的頻率因子和活化能參數,而建立了各種生物的熱解動力學模型,為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述,提供了理論和依據; ( 3 )為研究和確定不同尺度的生物顆粒中心達到全熱解的時間,在體視顯微鏡下對不同粒度的生物顆粒的長徑比行了實驗觀察和測定,得出生物的長徑比( l d )一般在5 . 0 6 . 0之間,平均為5 . 3的結果; ( 4 )採用復雜溫度場傳熱學理論對生物傳熱過程及充分熱解時間理論行了研究,解析導出了不同尺寸生物顆粒中心溫度達到充分熱解溫度的時間( t ) ,得出了理論導的充分熱解時間與最大產油率的熱解時間相一致的結果,為閃速熱解反應器固相滯留時間設計和預測提供了理論依據; ( 5 )根據上述實驗結果,綜合運用工程力學、工程材料、機械設計學原理,導、建立了轉錐式閃速熱解反應器物料滯留時間( )與轉速(或頻率)合理匹配理論; ( 6 )提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。
  16. Iso9001 quality system and mbo can be applied ; security management consciousness must be heightened. a consistent total management with various systems would be formed, and this can form a running - system, which unite duty, power and benefit, combine control and inspirit, balance enterprise and client, company and society, promote the enterprises growing rapidly, boost the existing and developing ability at the market competition

    繼續行iso9001管理體,引目標管理,提高安全管理意識,形成多種管理體制相容的一體化管理和責、權、利一,控制與激勵並存,企業與顧客、公司與社會平衡的運行機制,提高企業在市場競爭中生存和發展的能力。
  17. Firstly, the paper retrospects the development of eso and tries to probe into the theoretical field : the explanation of it ' s definition, the conclusion of it ' s characters, the comparison of eso and other stock inspiration system, followed by the analysis of it ' s theoretical basis and incentive effect ; meanwhile, the paper probes into the realistic situations of eso in usa and china in order to seek the regulation and draw the advantages and disadvantages ; to this part, the paper takes the following four items as the main barriers to eso ' s implementation in china : the over restriction of current law system, the low efficiency of the market, the poor corporate governance structure and a lack of a reasonable performance index system, and elaborately analyze the impacts of the obstacles on eso ; after the analysis made above, the paper gets down to taking some methods to solve the problems in accordance with the characteristic of the barriers. as far as the internal defects of the mechanism are concerned, the paper begins with the scientifically design of the key components, studying the aspects of bestowal, change, loss, the executive method and the executive time. then the paper focuses on designing a performance index system which is an essential part of eso, introducing the bsc to improve the present performance index system, under the reasonable guidelines resigning it at both the levels of company ' s and employee ' s levels. finally, as regards how to perfect the outside surrounding of eso, the thesis makes some suggestion

    本文首先回顧了股票期權制在國內外的發展及較為詳盡的分析了股票期權制度的相關理論:闡述了其涵義,特徵,理論基礎,激勵效應並於其他幾個較易混淆的股權激勵機製作逐一的比較,以一步澄清人們對其的錯誤認識;同時,對股票期權制在美國和我國的現狀行深入的實證研究,探求其內在規律,在肯定其成果時指出其不足;至此,筆者認為,我國上市公司要行股票期權制度將主要面臨以下四類障礙:公司治理結構不完善、市場有效性差、現行法規體不完善及缺乏客觀的業績考評指標體,並詳細分析了各類障礙的現狀及對股票期權制的負面影響;在此基礎上,針對各類障礙的不同性,著手探討消除這些障礙的措施:對于股票期權制內部的缺陷,本文先對各個關鍵要素行科學設計,的剖析了贈與、變更、喪失、執行方式、股票來源等技術性問題,再以大篇幅研究了如何構建出一套與實施股票期權制相配套的業績考核指標體,引平衡計分卡的思想對國內現有的指標體加以改,以一組合理的評價原則為指導,從公司及員工個人業績考評兩個層面上來設計該指標體
  18. The essay suggested coupling approaches of ecological economic system pointedly with theory of coupling catalyzing and management accesses based on analyzing causes of ecological - economic system coupling status of zhijin county : 1 ) put population into practice with controlling the quantity of population and developing the quality of population ; 2 ) carry out the strategy of revitalizing zhijin through science and education ; 3 ) take ecological - economic management and optimize industrial structure and develop zhijin ’ s economy ; 4 ) protect environment & resources and control karst rocky desertification integratedly ; 5 ) facilitate urban - rural coupling and sustainable development depended on urbanizing

    在原因分析的基礎上,以催化和管理耦合理論為指導,論文有的放矢地提出生態經濟的耦合途徑: 1 )實施人口政策,控制人口數,提高人口素; 2 )大力實施「科教興織」戰略; 3 )行生態經濟管理,優化產業結構,發展織金經濟; 4 )保護環境和資源,綜合防治石漠化; 5 )以城鎮化為載體,城鄉耦合和可持續發展。
  19. The first - order perturbation method correct for forcing decoupling method based on perturbation theory is put forward to decrease error ; iii. the complex modal method is introduced into analysis of non - classical damping systems to eliminate error of forcing decoupling method, and improve the complex modal response spectrum, which can apply to design of non - classical damping systems ; iv. for exerting the energy dissipation capability of each device, a two - step optimum method, whose controlling function is extremum expectation of interbedded displacement, is put forward to optimize the number and position of device ; v. the problem of iterative method applied to analyze energy dissipation systems is indicate, and give some primary advice based on pilot study

    為改善上述缺點,本文行了以下的研究工作:在忽略耗能器附加的基礎上,導出適用於耗能減震結構的攝動法,減少振型分解法在迭代計算過程中的工作,加快計算速度;針對運動方程的強行解耦所產生的誤差,根據攝動法原理,對其行一階攝動修正;為消除強行解耦振型分解法用於非比例阻尼結構分析時產生的誤差,引入狀態空間對行復模態分析,並改了基於復模態理論的、適用於非比例阻尼結構設計的雙反應譜方法;對于耗能器的數和位置優化行了一些探討和研究。
  20. In order to make the problems solved and improve the quality and efficient of recommender systems, some researches have been done, and the research results have been successfully applied in practice

    為了迎接這種挑戰,提高和實時性,目前國內外行了較多的研究,其成果也在實際中得到了一定的應用。
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