present parameter 中文意思是什麼

present parameter 解釋
固定參數
  • present : adj 1 在座的,出席的,在場的,到(場)的;現存的,存在的 (opp absent)。2 現在的,今天的,當前的...
  • parameter : n. 1. 【數學】參數,變數;參詞;參項。2. 【物理學】參量;(結晶體的)標軸。3. 〈廢語〉【天文學】通徑。vt. -ize 使參數化。
  1. In this thesis, the author analyses the deficiency in detecting and controlling function of the computer detecting and controlling system utilized in present transforming station. the strategy of design of software on operation and direction of 5 00kv transformer station is presented. it points out that we can deduce the mathematic analytical formula using the current, voltage and power of two terminals of transmission line as input. on this basis, we do realtime calculation of 500kv transmission line ' s parameter. we can also deduce the linear analytical formula of three - winding autotransformer ' s resistence using its current, voltage and power as input. the corresponding software is programmed on this basis

    論文提出以輸電線路本端和對端電流、電壓、功率作為輸入量,導出了超高壓長線的波阻抗和傳播常數的數學解析式,在此基礎上進行了500kv輸電線路實時參數計算;提出以三繞組自耦變壓器的電流、電壓、功率為輸入量,導出了自耦變壓器繞組的電阻、電抗的線性解析式並進而對變壓器的實時參數進行計算;在此基礎上編制了相應的軟體。
  2. In view of bearing capacity of the elastoplastic theory analysis, the author made a comparison between the achieved bearing capacity limit load pi / 4 of round base ( space problem ) and the limit load pi / 4 of bar groundwork foundation design ( plane problem ) from soil mechanics at home and abroad as well as foundation criterion, and explained why the value of formula in present design criterion from soil mechanics is inclined to be conservative. in the light of the author ' s many years experience of vibration test on the spot and the research work of relevant projects, the author worked over the dynamic pile testing of the bearing capacity of foundation and batholith, and gathered the parameter of dynamic analysis and testing. the author also talked over the difficult point of pile foundation design criteria in present batholith engineering world, i. e. the confirmation of batholith bearing capacity of pile end, from the following aspects : a ) confirmation of single axis counter - pressure strength of rock in house ; b ) f. e. m calculation of elastoplastic model ; c ) calculation of soil mechanics ; d ) deep well load test

    然後,對巖土工程領域至今尚未解決,甚至不為人注意的考慮地基變形的地基承載力問題進行了實用化的探討,提出了考慮地基變形的地基承載力上程計算方法;對基於彈塑性理論分析的地基承載力國內尚未見報道的空間問題得到了圓形基礎(空間問題)的承載力界限荷載p _ ( 1 / 4 ) ,並與國內外土力學專著及地基基礎設計規范中的條形基礎(平面問題)的界限荷載p _ ( 1 / 4 ) ,進行了對比,從而定量上解釋了目前設計規范引用土力學承載力公式值偏於保守的這一情況;根據本文作者多年從事現場地基工程振動試驗及相關課題的研究工作,本文以截頭錐模型模擬地基,對地基(巖基)承載力的動測法進行了研究,為各類地基(包括巖基) ,匯總了動力分析和檢測川的參數:針對日前巖土工程界應用樁基設計規范中的難點? ?樁端巖基承載力的確定問題,從巖石室內單軸抗壓強度確定、基於彈塑性模型的有限單元法計算、土力學計算及深斤載荷試驗四方面進行了深入討論;本文作者根據多年現場載荷試驗的工程實踐,對深井荷試驗裝置的核心部分? ?反力裝置,設計了側壁支撐反力加載系統,該加載系統具有實用、簡便、穩定及安個等優點。
  3. All the diathermanous processes of the measurement and control platform are analyzed from the angle of thermal science. we compute the design parameter of the thermoelectric refrigerator, present the measures of improving or weakening the corresponding diathermanous processes, which is the theoretical basis of the next design

    從熱學的角度分析了溫度測控系統的各個傳熱過程,計算出半導體製冷器的設計參數,給出了強化或削弱相應傳熱過程的措施,為下?步設計奠定了理論基礎。
  4. This article has studied the deficiency and shortcoming of various kinds of methods of the parameter measurement of transmission line at present, proposed the measurement under operation on the basis of gps, researched gps application way and error that may appear in the power system synchronal sampling, put forward the parameter computing technology based on the information of both sides of transmission line, which solved some problems that exist in the parameter measurement, especially the problem that exist in the zero - sequence parameter measurement of transmission line with mutual inductance

    本文研究了目前輸電線路參數測量的各種方法,分析了其中存在的不足和缺點,提出了基於gps的輸電線路參數在線測量方法,研究分析了gps在電力系統同步采樣中的應用方式以及可能出現的誤差,在同步采樣的基礎上提出了基於雙端信息的線路參數計算方法,較好地解決了輸電線路參數測量中存在的一些問題,尤其是多回互感線路零序參數測量困難的問題。
  5. When discussing the methods of goodwi11 evaluation, we point out the disadvantages of the present eva i uat i on formu i a se i ect i on and the parameter confirmation, import and deepen the theory of corporate life cycle to the work of enterprise income forecast, furthermore put forward a new model of excessive capitalized earning method on goodwill evaluation, and i i luminate the main points in the appl ication of the new model

    在探討商譽評估方法時,本文針對現有評估方法公式選擇與參數確定方面的不足,引入並深化企業生命周期理論,將其應用於企業收益預測,進而提出了一種商譽評估超額收益現值法新的定量模型,並對新模型應用中的要點予以說明。
  6. The first part. task analyse of handling technology design. is explain the place, basic establishments entironment of yangshan port and the conditions basic tenet and technical parameter of design. the second part, project study out. is discuss the design contents the choice of the leading and the assistant engine, the form of the handling mechanisation system, project study out. the third part, size design, is count the berth pass capacity, the amount of handling engine, the area and capacity of yard, road and gate, the worker amount. the fourth part. technology and economy argumentation, commendable project confirm, is confirm the commendable project by technology and economy argumentation. in the end, considering the technology, economy and use. discourse commend the project of rubber - tyred gantry crane. at present. centre government is studying yangshan project, but in handling technology part of container terminal, the design is simply. so this discourse has important consult value. and has important value of economy and community too

    第一部分的裝卸工藝設計任務分析主要就洋山港區的地理位置、基礎設施、自然環境,設計前提條件,設計原則以及設計主要技術參數進行說明;第二部分的裝卸工藝方案擬定主要就工藝設計的主要內容,主要機械及輔助機械選擇,裝卸機械化系統組成以及工藝設計方案擬定進行論述;第三部分的裝卸工藝方案規模設計主要就泊位通過能力,裝卸機械臺數,堆場面積及堆存能力,道路及大門,司機及工人人數,工藝流程進行計算分析;第四部分的技術經濟論證及推薦方案確定主要就技術、經濟指標進行對比論證,並在此基礎上確定推薦方案。
  7. The results of treatments with different concentration of phosphate in the present study indicated, whether boea leaves were treated before desiccation or during rehydration, and whether they were intact leaves, leaf halves or leaf discs, the boea leaves were injured and their photochemical activity of psii were serious affected by treatment with 0. 1mol / l phosphate or over, thus resulted in poor resurrection for dehydrated boea leaves. the photochemical activity of psii was a sensitive parameter of physiological activities for boea leaves during dehydration and rehydration

    本文利用不同濃度的磷酸鹽溶液處理牛耳草葉片,結果發現,不論是在乾燥前還是在復甦時處理,也不論是處理牛耳草整葉、半葉還是葉圓片, 0 . 1mol l以上的磷酸鹽溶液都對牛耳草葉片具有損傷作用,極大的影響了其光系統的光化學活性,使得牛耳草葉片在脫水后不能很好的復甦。
  8. Abstract : in this paper, the use and test status quo of internal and external large - sized coordinate measuring system is analyzed briefly and the composition, measuring method and error source are described. according to the internal use status quo and present level, the performance parameter, test method and material reference of the theodolite system suitable for indoor test and site test are proposed. the technical approaches for developments of the indoor large - sized standard and site material reference are given

    文摘:簡要分析了國內外大尺寸坐標測量系統使用和檢測研究現狀,敘述了經緯儀測量系統的組成、測量方法和誤差來源,根據我國使用現狀和現有水平,提出了經緯儀測量系統性能參數、檢測方法和標準實物,適用於室內檢測和現場檢測,給出了室內大尺寸標準研製和現場標準實物研製的技術途徑。
  9. This paper first present a study on the bond properties of furan resin concrete reinforced with gfrp bars, in which the pull - out test was adopted to investigate the bond performance between gfrp bars and furan resin concrete, compare the bond strength of gfrp bars of different surface disposal and validated the feasibility by test the gfrp bars reinforced furan resin concrete beam. then the paper provides a micro - mechanical model for the splitting failure analysis of gfrp reinforced concrete member and deducted the relation between splitting failure load and parameter of gfrp rod

    本文首先對gfrp筋加強呋喃樹脂混凝土及普通混凝土的界面粘結性能進行了實驗研究,對玻璃鋼筋表面採取了三種處理方法,用拔出試驗研究分析了gfrp筋和呋喃混凝土、普通水泥混凝土之間的粘結強度,比較了用不同方法進行表面處理的效果,確定了合適的表面處理方案,並通過對gfrp筋加強呋喃混凝土梁進行了彎曲試驗,進一步驗證了方案的可行性。
  10. This paper aim at guiding drilling basic theoretical research lag behind on reality that project practice at present, on the basis of analysing the technology and principle and researching current situation in detail, through a series of calculation draw the comparatively rational formula of guiding drilling ' s the most important parameter - pull

    本文針對當前非開挖導向鉆進基礎理論研究滯後於工程實踐的現實,在詳細分析工藝原理和研究現狀的基礎上,通過一系列計算,得出較為合理的導向鉆進最重要的參數? ?回拖力的計算公式。
  11. In the third chapter, we present a class of c2 - continuous spline curves of degree 4 with some shape parameter. the segmented curves are all shape preserving to given polygon

    第三章提出一類c ~ -連續的帶有形狀參數的四次樣條曲線,曲線上的所有曲線段的控制頂點由給定多邊形的頂點直接計算產生。
  12. In the section of experiment, we focused on the research of optical system of optical parameter oscillation, computer controlling data sampling closed - circuit system and technology of computer controlling feed - back. in the section of optics, we used present condition to do the experiments about optical parameter effect and got a series of characteristic curve on power transition efficiency and output power

    本文的實驗部分主要側重於智能化光參量系統的光學部分、計算機控制數據採集閉環系統以及計算機控制反饋技術的研究。在光學部分,本論文利用現有實驗條件進行了參量振蕩器頻率調諧的研究,得到了調諧曲線,並做了輸出參量光的能量轉換效率以及輸出功率的實驗,得到一系列特性曲線。
  13. However, it is difficult to choose proper perturbation parameter in the process of applying this method. even in present day, there have not a dependable norm to confirm certain parameter and researcher often search it through engineering experience

    但選擇攝動參數卻是正則攝動法求解過程中的一個比較困難的問題,現在對于這一問題仍然沒有一個一般的原則,而主要是利用經驗對該問題進行處理。
  14. According to the principle of curve axial symmetry, authors inferred the theoretical foundation of error - free translation of the working equipment of loader and proved that when the diameter of piston rod on arm oil cylinder was designed properly, the two oil cylinders could be guaranteed to have a synchronous movement which made the bucket maintain translation throughout the working process under the condition of the oil cylinder ' s basic parameter ; also made the equipment structure of the loader greatly simplified and provided the reference for improvement of the present equipment of loader

    根據曲線軸對稱原理,推導出了能使裝載機工作裝置無誤差平移的理論基礎,證明了只要適當地設計動臂油缸活塞桿直徑,就可以在油缸的基本參數上保證機構工作時兩油缸同步運動,使鏟斗在作業過程中保持平移;使裝載機工作裝置結構大為簡化,為進一步改進現有裝載機工作裝置提供參考。
  15. Based on analyse of parameters which used to evaluate laser beam quality at present and according to the main properties which influence on laser manufacturing, beam focus characteristics parameter is put forward as the stander parameter to evaluate beam quality, because the foundmental advantage of laser beam applied in industral field is that laser beam can achieve high energy intensity through focusing

    論文在總結目前存在的評價激光光束質量參數的基礎上,根據對影響激光製造的主要光束特性參數的分析,以光束空間特性為核心,提出用光束聚焦特徵參數值作為評價激光光束質量的參數。因為激光作為能源能夠在工業領域廣泛應用的根本優勢就在於它可以通過聚焦獲得極高的能量密度,而值恰恰表徵了實際光束的可聚焦能力。
  16. Then, which of the convergent plate elements are convergent uniformly with respect to the parameter we will present a general convergence theorem for c ? nonconforming plate elements and a general convergence theorem for non c ? nonconforming plate elements for the problem re - spectively

    我們將分別給出判別c ~ 0非協調板元和非c ~ 0非協調板元對這一問題收斂的一般判定定理,由此可判定已知的板元對該問題的收斂性。
  17. The history and present situation of electric measuring instrument and features of intelligent meters are introduced in this paper. a brand - new scheme of intelligent electric parameter meter is proposed by the author after combining the features of intelligent meters and practical demand for electric measuring in 300mw generator units. general design, realization of hardware circuit comparison and analysis of errors of different algorisms are discussed in detail

    本論文介紹了電測儀表的發展歷史與現狀,以及新興智能儀表的特點;結合智能化儀表特點和300mw發電機組電參數測試的實際需要,首次提出了一種智能型發電機組電參數綜合測試儀的研究方案;詳細敘述了該智能型綜合測試儀的總體設計,硬體電路實現,各種演算法的比較的誤差分析;以及軟體框圖設計,針對影響測量精度的因素進行了分析,並制定了改進措施。
  18. As for complicated dynamic wear, its whole process from beginning to end has not been comprehended clearly up to the present, and there are still three difficult problems awaited to solve, which include the wear longevity forecast of the rub, status surveillance and parameter optimization design

    然而,現行的磨損研究方法普遍採用大量的模擬試驗來進行經驗性的探索,而對復雜的動態磨損問題,至今還難以清楚地了解其從始至終的全過程,仍然存在三大難題有待于解決。它們是:摩擦副磨損壽命預測、狀態監測及參數優化設計。
  19. We propose an algorithm, which integrate the shift invariance of redundant discrete wavelet transformation ( rdwt ) and the flexibility of multi - resolution motion estimation, to overcome the shift variance of dwt and get the precise motion vector. under the different code parameter, we take the proposed algorithm compared to several present algorithms, and experiment results have shown that proposed algorithm could leave less energy in the residual frames, get more precise motion vector and better reconstructed frames

    文章最後在不同的編碼參數下,將所提演算法與兩種傳統小波域運動估計演算法作比較,根據實驗所得數據分析,發現所提演算法在性能上要優于另外幾種演算法,具體體現在運動估計后所得殘差幀能量更小,重構幀客觀與主觀質量更高。
  20. So the methods of design and computing about limit condition of bearing capacity is still adopted in present criterion. under the precondition of meeting the demand of construction ' s using function, the main content that is researched in this article is how to make the scheme of mixed soil - cement piles composite ground on the safe side economical and reasonable, according to the rule of the design for deformation control the article, which is based on formers " theory and practice, combining with the example of engineering, utilizing the tool of matlab. 5. 0, using optimizing by plural modality method, makes a primary discussion on the design parameter of the scheme for mixed soil - cement piles composite ground, according to the rule of the design for settlement controlment method

    在現行規范中仍然採用的是承載力極限狀態設計計算方法。在滿足建築物使用功能要求的前提下,如何按照變形控制設計的原則,使得水泥土攪拌樁復合地基方案更加安全可靠、經濟合理,是本文研究的主要內容。本文在總結前人的理論和實踐成果的基礎上,結合工程實例,利用matlab . 5 . 0工具,採用復形調優法,按沉降控制設計原則,對水泥土攪拌樁復合地基方案設計參數的優化進行了初步的探討,得出了一些有益的結論,對工程實踐具有一定的指導意義。
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