useful effect 中文意思是什麼

useful effect 解釋
有效磁通
  • useful : adj. 1. 有用的，有益的，有效的，有幫助的。2. 〈俚語〉值得稱贊的，精通…的 （at）。adv. -ly ,-ness n.
  • effect : n 1 結果。2 效能，效果，效力，效應，作用，功效；影響。3 感觸，印象；外觀，現象。4 旨趣，意義。5 ...
  1. According to the design demands of cad network system for chongqing caff automotive products co. ltd, cad applied to enterprises has been researched deeply and widely. research and practice works have been done in the following aspects : cad network system ' s layout, network topology structure, network devices selection, parameterized design and development based on cad application software, management of network system and design drawings, and etc. engineering practice attained anticipative effect and some useful reference ideas have been provided for construction of cad network system in caff co. ltd

    論文根據重慶卡福汽車零部件有限責任公司cad網路系統的設計要求，對cad在企業中的應用進行了深入而廣泛的研究，在以下幾個方面進行了研究與實踐工作： cad網路系統的規劃，網路拓撲結構、網路設備的選擇， cad應用軟體的選擇， cad應用軟體的參數化設計和二次開發，網路系統和設計圖紙的管理等。
  2. It is generally impossible to obtain the analytic optimal guidance law for complex nonlinear guidance systems of homing missiles, and the open loop optimal guidance law is often obtained by numerical methods, which can not be used directly in practice. the neural networks are trained off - line using the optimal trajectory of the missile produced by the numerical open loop optimal guidance law, and then, the converged neural networks are used on - line as the feedback optimal guidance law in real - time. the research shows that different selections of the neural networks inputs, such as the system state variables or the rate of los ( line of sight ), may have great effect on the performances of the guidance systems for homing missiles. the robustness for several guidance laws is investigated by simulations, and the modular neural networks architectures are used to increase the approximating and generalizing abilities in the large state space. some useful conclusions are obtained by simulation results

    對于復雜的非線性導彈制導系統，很難求得其解析的最優制導律，只能求得開環的數字解，不能適用於具有時變不確定性的導彈制導系統.利用神經網路的學習和推廣能力，對開環的數字最優制導律進行離線的學習，作為閉環的神經最優制導律在線應用.研究分別選擇系統狀態變量和視線角速率等不同的神經網路輸入對制導系統性能的影響，以及各種制導律的魯棒性問題，並採用模塊化神經網路結構提高神經網路的學習和推廣能力，模擬結果得到一些有益的結論
  3. The effect of local oscillator syntonization error and triggering time synchronization error on bistatic sar imagery are analyzed based on their error models. useful simulation results are provided for system design

    本文重點研究了雙基地sar本振相位同步誤差與觸發時間同步誤差對成像的影響，建立了誤差模型，給出了模擬試驗結果，為系統設計提供了參考依據。
  4. Then the periodic properties of geocenter motion in the x, y, z components are summarized. considering the statistical precision of the gps observations, the geometrical distribution of gps stations and their physical stablility, a new method to determine the parameters of geocenter motion is studied and analyzed. in order to have a better understanding of its effect on the height datum origin, the rule of geocenter motion in the horizontal and vertical components are also analyzed and some useful conclusions are drawn

    提出了將譜分析與抗差估計相結合的抗差譜分析方法，並用該方法分析了地心運動時間序列的主要周期特性；為合理地確定地心運動參數，詳細研究與分析了一種新的定權方法對求解地心運動參數的作用，該方法充分利用了gps觀測量的統計精度、點位的幾何分佈以及物理穩定性；為了明確地心運動導致的高程基準的變化，分析了地心運動對地面點的水平分量和垂直分量的影響規律。
  5. The heat - exchange apparatus is the window for air - conditioner to exchange energy with outside. we analyze the efficiency of heat - exchange apparatus by the theory of heat - transmit, and compare the advantage and disadvantage of different type evaporator ' s and condenser ' s design by lots testing, and compare the effect of heat - exchange for different type flake, and compare the effect of heat resistance for different stretch of copper tube and flake. then we get many useful results from those different comparing

    蒸發器與冷凝器統稱為換熱器，換熱器是空調器與外界進行能量交換窗口，利用傳熱學原理對換熱器的效率進行分析，通過大量的試驗比較不同的蒸發器，冷凝器設計方案的優劣；比較冷凝器使用不同片型對換熱效果的影響；比較銅管與翅片的不同脹緊對熱阻的影響，通過比較得出很多有用的結論。
  6. This paper includes five parts. the first is to review the study on the subject ; the second is to discuss the characteristic of chian ' s stock market. the change of money - admitted policy and the questions on the study. the third is to verify the size effect in china ' s stock market by using correlation test and regression test on the bases of four different criterions, each criterion will be applied with two time - series methods. the fourth is to summary the main character of four different criterions, and apply joint test to the criterions that were proved the best concerning the size effect. the illiquidity risk was introduced to the study, the indexes of turn - over rate and the fluctuation of turn - over were used here. however, other factors that may influence the invest return rate as circulating rate and size were also included. according to the result, the size effect will be interpreted. the fifth is to summary the size effect and its explaination, and then to provide some useful invest strategies based on the conc lusion above

    論文分五部分，第一部分對小公司效應的有關研究文獻進行回顧;第二部分我國股票市場的狀況、資金供給政策的變化和我國股票市場實證的相關問題進行論述;第三部分對我國股票市場的小公司效應按照四種不同的規模標準分類，每一種標準均分兩種不同的統計周期分段標準進行實證分析;第四部分小結不同的規模分類、不同統計周期分段的統計結果特徵，然後對小公司效應最明顯的規模分類標準進行多因子聯合回歸分析，這里引入了流動性風險因素，其用換手率和換手率波動指標來衡量，還分別引入了其它影響投資收益率的因子，分別是規模、流通比例。
  7. Properties : a significant astringent effect, useful for inflamed and tender skin conditions, such as eczema. it is also valuable for damaged facial veins, varicose veins and hemorrhoids

    特性:具極佳的收?作用，對發炎及敏感的皮膚，如濕疹有舒緩作用。對治療面部微血管破裂、靜脈曲張及痔瘡也有很好的療效。
  8. Abstract : by using the correlation analysis of cotton climatic output and temperature elements of different temperature types and different length periods of time in akesu cotton region, the results obtained indicate ( 1 ) using daily temperature elements of different length periods of time correlated with cotton climatic output is more useful, more reasonable and more easily in founding out optimum temperature elements with biological significance than using ten - days temperature elements ; ( 2 ) in three temperature elements of mean temperature, maximum temperature and minimum temperature, the effect of maximum temperature on cotton climatic output is the greatest, mean temperature is greater, and minimum temperature is the least ; ( 3 ) the low temperature in later spring and summer have some limiting effects on forming cotton climatic output in akesu cotton region

    文摘:通過對阿克蘇棉區棉花氣候產量與不同長度時段、不同類型溫度要素的相關分析，結果表明： （ 1 ）採用不同長度時段的日溫度要素與棉花氣候產量進行相關分析，比採用旬溫度要素的工作更細致，更合理，更易找出對棉花氣候產量影響較大的有生物學意義的較佳時段和溫度要素； （ 2 ）在平均溫度、最高溫度及最低溫度3個溫度要素中，以最高溫度對棉花氣候產量的影響最大，其次是平均溫度，最低溫度最小； （ 3 ）春末及夏季的低溫對阿克蘇棉區的棉花氣候產量形成具有一定的制約作用。
  9. A deep foundation pit engineering in shanghai is adopted as an example. the factors of design, construction and nature environment on effect of internal force and deformation for a retaining structure are studied in detail through the example. these factors include the rigidity of retaining wall, rigidity and site of support rod, space - time effect of pit excavation, water environment of foundation pit etc. some useful conclusions of controlling deformation of foundation pit are obtained through the study

    以上海某深基坑為工程原型，利用有限元程序，詳細探討了支護墻剛度、支撐剛度及位置、基坑開挖的時空效應、基坑周圍水環境等設計、施工和自然環境因素對支護結構內力和變形的影響，提出了一些控制基坑變形的方法措施，為深基坑工程的設計和施工提供了依據。
  10. It can not only solve the containership prestowage problem through the use of objective functions about the optimize model, and obtain a good effect, but also has an useful study for developing automatic stowage system of containership

    應用該優化模型，解決了配載中的港序問題和船舶性能狀態的控制問題，並取得較好的效果，為實現集裝箱船自動配載又前進了一步。
  11. Based on the theory of demand levels proposed by a. maslow, the present thesis investigates and compares the main difference of utilities among armymen at different levels according to their income levels. moreover, it quantitatively analyzes the influence on the individual utility of armmen at different level caused by increase in satisfying every demand, to find out the basic information and the main problems on the armymen ' s salary, welfare, spiritual encouragement and so on, systematically summarizing and analyzing the actual problems existing in the charge collocation of military personnel in our country. based upon the new research view, the present author reviews and benefits from the useful practice and experience of the charge collocation of military personnel abroad, constructs the economic model to analyze the quantitative relationship between the individual utility of armymen and the encouraged effect of military personnel, as well as between the input of military - personnel charge and its output of the encouraged effect, and put forward the proposal for maximizing the encouraged effect caused by the charge of military personnel of our country, trying to enter a new research area for human resource economy of military personnel and national defense investment economy in our country

    本文借鑒馬斯洛需求層次理論，把軍事人員按收入級別劃分為不同層次，調查分析比較了不同層次軍人的效用觀主要區別，並把每一需求滿足的增加對不同層次軍事人員個人效用的影響加以量化分析，從而找出了我國軍人工資、福利、精神獎勵等的基本情況和存在的主要問題，系統總結和分析了我軍軍事人員費配置中存在的實際問題;並進而立足這一新的研究角度，考察和借鑒了國外軍事人員費配置的有益做法和經驗，建構和分析了軍人個人效用與其對軍事人員的激勵效應之間以及軍事人員費的投入與軍事人員費所產生的激勵效應之間數量關系的經濟模型，提出了我軍軍事人員費實現激勵效應最大化途徑的建議，嘗試著進入我國軍事人力資源經濟學和國防投資經濟學的新的研究領域。
  12. The result of the study shows that the electro - hydraulic proportional technology is useful for all - hydraulic operated drilling machine to simplify the operations and composition of system, to improve the level of automatization and efficiency and to reduce the consumption of energy. the result of the study also shows that the system of feeding has the properties as followed : fast respone, stable pressure - adjusted characteristic, distinct effect of energy - saving, some improvement of system efficiency

    研究結果表明：全液壓鉆機中應用電液比例技術，可以簡化系統組成和操作，提高鉆機自動化水平，提高系統效率，降低發熱和溫升；採用恆壓變量泵的給進加壓電液比例控制系統調壓性能穩定、響應快、節能效果明顯。
  13. The effect of economizing energy and materials after the contactor adapts the electro - ecomonizer and its reliability is useful to the research on operating - control and economizing electricity of other electromagnets

    接觸器配用節電器后的節能、節材效果顯著，節電器工作可靠，可供其他電磁鐵的操作控制及節電研究參考，具有一定的實用價值。
  14. Second, we establish the equation of human body ' s movement by the utilization of former optimizing results and the method of multiplying of matrix. at last, we design and develop the 3 - dimensional simulation system of springboard diving with the tool, opengl. the result shows that the model has good vision effect and real - time nature and is very useful to practice

    最後，本文以opengl為工具，在vc + + 6 . 0環境下開發了此跳板跳水模擬系統，實驗結果表明該方法建立的人體模型視覺效果和運動實時性較好，對指導實踐有較高的應用價值。
  15. The porous diffusion type silencer is widely used to reduce the air flow noise because of its small volume and high noise attenuating ability. the out case of the silencer plays a very important role in reducing noise. the effect of the hole ' s shape, diameter and the distance between neighboring holes as well as the matchup between the case and the sound absorbing material tube are investigated experimentally. the relation between the out - flow noise and the gas velocity distribution is carefully studied for two different kinds of matchup between the case and the sound absorbing material tube. some useful results are gotten, which may be valuable to the design of the silencer

    多孔擴散型消聲器由於其體積小、消聲性能高而廣泛應用到排氣噪聲的降低上，其外殼對消聲器的消聲性能具有重要作用.本文對此類消聲器外殼的孔型、孔徑和孔距以及外殼同消聲材料的配合方面進行了細致的實驗研究，特別對外殼與消聲材料的配合與其排放噪聲以及外部流場之間的關系進行了探討，得到了一些有用的結論，對消聲器性能的提高具有一定指導意義。
  16. First, the implementation project of the if digital receiver of tdrss user transponder by the fpga and dsp cooperation design method is proposed in this thesis. then, the software simulation system for the if digital receiver is built up, definite word - length effect is analyzed, and some useful conclusions are derived, which provides reference for the following hardware design and debug

    本文首先採用fpga與dsp協同設計的方法實現該接收機的方案，然後建立了該中頻數字接收機的軟體模擬系統，對有限字長效應進行分析，得到了一些重要結論，為下一步的硬體設計和調試提供了參考。
  17. The results of the wind tunnel test, which were made to research the effect of tmd indicates the tmd was suitable and useful for yamen bridge pylon tower

    為研究tmd對崖門橋塔的減振效果而進行的風洞試驗表明，用於該橋塔的tmd設計合理，對橋塔的橫橋向抖振有較好的抑制作用。
  18. In terms of the effect on society, compared to using abiding - man ’ s humanness is more useful in protecting social order, especially when there is the system vacuum because of the system out of date, system malfunction or system vacancy

    這會對其它制度的構建質量及運行效果起到一個引致效應和示範效應;教育制度是提高完整人性的手段。手段適當與否，對實現完整人性化起到絕對關鍵作用。
  19. We define the recombination time of excess electrons in p field as the minority carrier lifetime. in theory, we developed the equation between excess minority carriers lifetime and the open - circuit voltage decay ; moreover, the effect of capacitance to general open - circuit voltage is also investigated. both different efficiency solar cells are measured by the method and showed the relations between the minority carrier lifetime and the performance of solar cells, which provides great useful guidelines for fabricating high - efficiency silicon solar cell in industry

    根據太陽電池的工作原理，詳細地論述了用脈沖光源照射n / p結太陽電池時光電壓的產生，理論上給出了注入p區的電子復合帶來的開路電壓與少子壽命的關系，也研究了n / p結勢壘電容放電對開路電壓衰減的影響關系，推導了利用開路電壓隨時間衰減的關系來測量少數載流子壽命的理論公式。
  20. Effect of hyperlipoproteinemia on time of useful consciousness during hypoxia in pilots

    高脂蛋白血癥對飛行人員缺氧有效意識時間的影響
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