某數的平方 的英文怎麼說
中文拼音 [mǒushǔdepíngfāng]
某數的平方
英文
x squared- 某 : 代詞1. (指一定的或不定的人或事物) certain; some 2. (用來代替自己的名字) for one's name
- 數 : 數副詞(屢次) frequently; repeatedly
- 的 : 4次方是 The fourth power of 2 is direction
- 平 : Ⅰ形容詞1 (沒有高低凹凸 不頃斜) flat; level; even; smooth 2 (高度相同; 不相上下) on the same l...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
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This thesis firstly introduces new demands of aerial product logistics support under high - tech war and some defects of traditional logistics support, and puts forward a kind of system model of aerial product logistics support following data - sharing of cals, and emphasizes detm. secondly it sets forth application of step and xml in the ietm, researchs conversion of xml schema and relation schema, and simply researchs mapping of xml and express. afterword, a based - xml framework of info - transfer between different platform are presented, according to this framework, the author establish a archetypal system of helicopter information query system based xml and dbms
本文首先介紹了現代高科技戰爭條件下對航空產品維修保障的新要求,概述了傳統的後勤保障技術的不足,遵循cals的數據共享的理念,提出了航空產品維修保障系統模型,重點研究了互動式電子技術手冊;接著分析了step標準和xml技術在製作互動式電子技術手冊中的應用,重點研究了肌模式和關系模式之間的相互轉換,初步研究了xml和express語言之間的映射關系;然後,提出了基於xml的一種解決航空產品信息跨平臺傳遞的解決方案,給出了該方案的具體實現流程和詳細的通訊協議,並開發了基於xul和數據庫的某型號直升飛機的信息查詢原型系統。( 2 ) aiming at the requirement of safe storage of the electronic documents on the information integrated platform in manufacturing enterprise, using encryption / decryption and compression / uncompression techniques and saving the electronic documents as some special attribute object of large database and managing the enterprise electronic documents effectively through database, a safe access mechanism of functional grant < wp = 7 > and recommendatory grant to decrease grant management maintenance cost is proposed and the storage mechanism of special database attribute object is studied and the method for saving, accessing and retrieving electronic document quickly is constructed. thus these methods can make the electronic documents of information integrated platform in manufacturing enterprises get safe, reliable and quick access. ( 3 ) according to this circumstance in which web pages are selected as the user interface of manufacturing application system, the safe measures of access control over web page resources are provided
( 2 )針對製造企業信息集成平臺中電子文檔安全存儲要求,採用加密和壓縮技術,將電子文檔作為大型數據庫中某種特殊屬性對象來存儲,以數據庫方式對企業電子文檔進行集成的、統一的管理,提出一種訪問控制的增強型安全設計原則,基於此原則建立了管理授權和推薦式授權的安全訪問機制,用以提高系統的訪問安全性,並大大減少授權管理維護量;研究了特殊屬性對象的數據庫存儲機理,從而構造一種快速存儲、訪問和檢索電子文檔的方法,使得企業信息集成平臺的電子文檔獲得安全、可靠、快速的訪問。By constructing the geometrical model of a certain underground single arm type pantograph and applying the translation of pantograph - head balancing bar and the perpendicular displacement of pantograph in the direction of the movement of locomotive while raising pantograph as the objective which must satisfy the demands of locomotive ' s stable current collection, this paper applied the multi - objective optimization based on the genetic algorithms to design the pantograph mechanism
摘要在建立某地鐵單臂受電弓簡化幾何模型的基礎上,根據列車平穩受流對受電弓提出的各項要求,以受電弓升弓時機車前進方向上的縱向偏移量和弓頭平衡桿的平動為目標,以受電弓正常升弓所需升弓轉矩等為約束,運用基於遺傳演算法的多目標優化技術,對該型受電弓機構進行了優化,得到了使受電弓運動性能達到最優的幾何參數。There are many ways of modulating signal about bpsk such as castas loop, square loop, etc. usually the carrier wave is put forward firstly, then the purified carrier wave is used to demodulate the output data ( all these things are usually completed in the same loop ). these methods have their strong points but at same times, it is difficult to design and achieve these ways
有關bpsk調制信號的解調方法很多,例如castas環,平方環等,這些方法一般都是先提取載波,然後用提純的載波去解調出傳輸的數據(大都在同一個環路內完成) ,這些方法的優點是顯而易見的,但是在某些條件下,這些方法的設計和實現卻很困難。To adapt the circumstance in which the crankshaft torsional vibration generally exists, the new method ( tvrs method ) in which the cylinder power is inversely solved according to the torsional vibration curve is put forward and deduced in this paper, that is, the average effective pressure of each cylinder i. e. power condition of each cylinder is estimated based on a crankshaft torsional vibration curve according to the elasticity model of the actual shafting of engine and by use of the i. c. engine dynamics, the numerical calculations and the signal theory etc. although the computing workload is more, the method makes full use of the now available data of the torsional vibration of the i. c. engine, and can be used to all kinds of i. c. engine on any kind of operating condition, so it has higher application value
為適應內燃機普遍存在曲軸扭振的情況,本文提出並推導了利用扭振信號反算的新方法( tvrs法) ,即採用軸系中某一測點的扭轉振動信號,按軸系實際的彈性模型,依據內燃機動力學、數值計算方法和信號理論等,反算各缸的平均有效壓力,定量判斷各缸的作功狀況。此法充分利用內燃機現有的扭振資料,雖然計算工作量較大,但普遍適用於各種類型各種工況的內燃機,有較高的實用價值。Based on the data of pile driving records of a great number of piles in offshore platforms and the project about driveability analysis of super large diameter, super length, deep penetration pile of one oil - gas field in our south sea , simultaneously, following up the front of the research of pile driving, studies have been performed as followings : 1
本文緊密結合大量工程實測數據和我國南海某大型油氣田開發所提出的平臺超大直徑、超長、深貫入樁基的動力打樁可打入性和承載力的高精度預測分析研究課題,同時跟蹤本學科前沿領域,對以下幾個方面進行了較為深入的探討和研究。Using the combinatorial method of constructibility and the technique of exchanging colors, we present the best upper bounds of dynamic chromatic number of halin graphs and sp graphs, and determine the dynamic chromatic number of a type of sp graphs, we determine the incidence chromatic number of some descartes product graphs and some join graphs. at last we determine the entire coloring number of 1 - tree and prove a conjecture of edge - face coloring
利用構造性組合方法和換色技巧給出了halin圖和系列平行圖動態色數的最小上界,並確定了一類特殊系列平行圖的動態色數,確定了某些笛卡兒積圖和某些聯圖的關聯色數,確定了1 -樹圖的完備色數並證明了有關邊面著色的一個猜想。A relatively security, reliable virtual private network _ and implementary plan was designed to meet the demands of data traffic, security of information transmission, transmission of video frequency, ip telephone, oa of companies. the design applied vpn and realized data increment service, for example, transimission of video frequency, ip telephone and oa and so on. these projects gained good economic and social utility for si chuan unicom
論文依據四川某集團公司對網路數據通信、網路信息傳輸安全、視頻傳輸、 ip電話、集團公司oa的需求,具體設計了一個相對安全、可靠的虛擬專用網建設和實施方案,依據此方案在集團公司實施了vpn ,又在該vpn網路平臺上實現了相關的數據增值業務,如:視頻傳輸、 ip電話及集團公司oa等。Based on a general overview of firm performance assessment theories, this study makes a comparison between traditional performance measures and strategy - oriented performance measures, analyzes the existing performance measurement system of the national aviation oil companies. the thesis has a literature review of the balanced scorecard researches and applications, expounds the advantages of the balanced scorecard over traditional measurement systems in revealing the intension of firm performance, analyzing the critical factors behind firm performance and providing information support for firm strategy, documents the relationship between the balanced scorecard and firm strategy, and puts forward the idea of strategic performance. by using the data and background information from one of those national monopoly oil companies, this study a ppraises the limits of this sort of companies " performance measurement system, applies balanced scorecard method to this kind of national monopoly oil company, designs questionnaires to collect experts " opinions, colligates the opinions, selects kpis, builds experimentally the first strategy performance assessment indicator system in this kind of company, determines the indicators " parameters, uses the real corresponding data to measure the 6 business lines of this company, through comparing the assessment result with the strategic standard, a conclusion is drawn and suggestions are put forward about how to exploit the performance potential under present conditions
在對績效測評理論進行回顧的基礎上,本文研究了傳統測評指標體系與戰略導向的測評指標體系的區別,總結了中國航空油品經營企業的績效測評現狀,對平衡計分卡理論研究和應用進行了綜述,分析了平衡計分卡在揭示績效內涵和影響績效的因素、發揮績效測評的信息作用等方面的優勢,論述了平衡計分卡與企業戰略的關系,提出了戰略績效的概念,並結合某壟斷性油品經營國有企業的實際,評述了此類企業傳統績效測評指標的局限性,借鑒平衡計分卡思路,通過設計調查問卷、收集專家意見並加以綜合分析等工作,選取關鍵績效指標,探索性地建立了中國壟斷性航油經營國企的首個企業戰略績效測評指標體系,並確定了指標有關參數,對應指標的統計口徑採用經調查獲得的測評所需數據,對該企業6個業務板塊的績效進行測評,通過對比分析得出在現有條件下如何挖掘潛力的結論和建議。Numerical models are frequently used to simulate water flow in hydraulic engineering. shallow water equations are basic governing equations with assumption of the velocity distribution uniformly in vertical, so they have some limitations on the simulation of some plane flows, such as wind - induced flow, curve river flow and flow nearby the submerged dikes. for above - mentioned reasons, extended shallow water equations are developed by introduction of momentum coefficient, correction of convection and bed resistance in equations of motion
在水利工程中經常需要採用數學模型模擬水流的流態,淺水方程是進行平面流態模擬計算的基本控制方程,但因其忽略了流速垂線分佈的不均勻性,在模擬某些平面流態(如風生流動、河灣水流、潛壩等工程附近的流動)時存在一定的局限性。Ii. what number exceeds its square by the maximum amount
求某數,使某數減某數的平方為最大It was also investigated and analysed on the styles of cross section in road green space, the rate of green space, the kind of green space, the quantity of plant spaces in green space, the format of planting. on the base of these, the planning designs of road green space in the blocks of heze city were also studied in combination with the practical situation which the city of heze were building to be a plain - plantation city with the flowers and water. the main results were as follows : 1. there were some problems about road green space in blocks of heze city, which were detected and researched. ( 1 ) the rate of road green space was low and the styles of cross sectionin road green space were simple
本研究以菏澤城區道路綠地及街頭綠地為研究對象,對其綠地斷面形式、綠地率、綠地類型、綠地植物種類、數量、種植形式等現狀進行了全面的調查和分析,在此基礎上,結合菏澤近年創建以「花城水邑」為依託的平原森林城市建設的實際,對菏澤城區道路綠地規劃設計進行了研究,主要結果如下: 1 .菏澤城區道路綠地存在以下問題: ( 1 )道路綠地率低,綠地斷面布置形式單一,中心島面積偏小; ( 2 )植物種類少,景觀效果差; ( 3 )植物配置形式單一,地方特徵不突出; ( 4 )某些植物選擇不當,如遮陰功能差,影響交通安全等; ( 5 )行道樹與架空線存在矛盾,影響樹木生長,景觀效果差; 2 .根據荷澤實際情況進行了城區道路綠地規劃設計研究: ( 1 )提出了菏澤城區道路綠地規劃設計的依據、原則、總體布局、布局形式。In general, the upward amplitude curve " curvature is larger, and it changes quicker. on the contrary, the downward is smaller and slower ; because the flare force contains the square of the wave elevation velocity, it results in an difference between the flare force frequence and the associated moving frequence ; the flare force decreases the downward amplitude of heaving oscillations ; the speed of ship has an ignorant effect on the peak values of three calculated values, but there is an obvious effect on the oscillating frequence ; the wave amplitude has an effect on the ship motion, and there is an linear relation between the oscillating amplitude and the wave amplitude on the whole. by the way, there are some experiences and lessons according to the progress calculation : before the calculation of the ship motion, we should checkout the balance in a calm water firstly, namely, the whole displace of ship and the longitudinal position of the center of gravity must be consistent with the draft in calm water, or else, the calculation may show the " floating " phenomenon ; the mixed language programming has a lot of virtues, but it exists a fatal limitation - the debug of dll
研究表明:在某些頻率范圍內相關水動力系數基本不隨吃水變化,只有超過某一頻率后水動力系數的值才會出現差異;在橫搖方向,水動力系數並沒有隨著吃水的變化發生規則變化,而是出現了波動現象;近船首剖面的水動力系數計算表明,水動力系數的波動非常大,並遠遠偏離了平均位置的水動力系數值,值的變化速率也不盡相同,總的看來,上振幅曲線曲率較大,變化較快,下振幅曲線曲率較小,變化較慢;外飄力和波面運動的速度的平方項有關,導致其振動頻率和相應運動方向的頻率不同;外飄力使升沉向下運動的幅值減小;船速對三個計算量的峰值影響甚微,但對振動頻率有明顯影響;波幅對船舶運動的影響是明顯的,船舶運動的幅值基本上和波幅成線性關系。This paper presents a method of test, estimation and predication of some state parameters of the power unit in power and electric equipment, these parameters can be temperature, voltage, current and so on ; when attaining the values of these parameters at the next state, whether the power unit will go into the malfunction or not can be knew, according to the result, some measures can be made ; by controlling the values of correlative parameters, the unit could be maintained in its optimal running status ; so the damage to the power unit can be prevented, the running quality of the driving system can be guarantied, and the optimized control level of the system can be improved
本論文提出了一種利用預測估計的方法,對電力電子設備中的功率器件的某些主要狀態參量(如:溫度、電壓和電流)進行測試、估計並預測,從而得出未來的運行狀態;然後據此判斷該功率器件是否已進入故障范圍,以便提前採取措施,通過對相關參數的調整來保證功率器件始終工作在最佳狀態;這樣,既避免了功率器件損壞的發生,又避免了驅動系統故障狀態的出現,明顯地提高了系統優化控制的水平。Method : to add up the general information of the outpatients in a certain hospital, the total number of the varieties of the prescr ption drugs as well as the average number for each time ' s prescr ption, the rate of using injection for every one hundred patients, the distribution of prescr ption drugs, and so on
方法:統計某醫院就診病人基本情況、處方藥物總品種數、每次就診的處方藥物平均品種數、每百例病人注射劑的使用率、處方藥品劑型分佈等。An idea to establish a cancellation database on the basis of the smooth of rcs of the protected target is also introduced the field scattered by facets and fringes and the multiple scattering effect are calculated by a hybridization of the theory of physical optics, equivalent currents and areal projection - physical optics, which are utilized to compute the rcs of an aeroplane
還提出了根據被保護目標rcs的平滑值確定對消數據庫的思想。應用物理光學法、等效電磁流法和區域投影物理光學方法計算了面元散射場、劈邊緣繞射場以及多次散射場,採用此方法計算了某飛機的rcs ,並對該目標的rcs進行了平滑處理。Clicking or hovering over " site info " will show you the site ' s traffic rank ( lower numbers are more popular ), customer reviews, the average speed of the site, how long the site has been active, and other sites that are related to this site in some way
在「地點信息」上點按或徘回將給你看這個地點的交通等級(更低的數字是更流行的) ,顧客評論,這個地點的平均速度,這個地點有多長,是活躍的,並且在某些方面與這個地點有關的另外的地點。By the properties of k - th order symmetric function, we obtained some estimations of integral mean value of the solutions of the boundary value problems for some kind of special partial differential equations in dk which can be changed into laplace equations in the unit circle by way of suitable transform
另外, d _ k上的某一類特殊的偏微分方程經過適當變換后轉化為單位圓上的laplace方程,其邊值問題的解的積分平均估計可由k次對稱化函數的性質較好給出。The stability of period response of nonlinear rotor - bearing systems is analyzed by employing the newmark and shooting methods. the bifurcation rules of period response of elastic rotor system with multi - degree of freedom are obtained. the motion characteristic of the rotor system is determined according to the fractal dimension of poincare mapping of phase aspect and frequency spectrums at certain speed and physic parameter of rotor
對于這三個模型,本文採用了計算速度較快的newmark方法求解系統的響應,用poincare映射、軸心軌跡和頻譜圖分析各個轉子-軸承系統在特定參數下的運動特徵,通過分岔圖研究了轉子?軸承系統隨某些參數(轉速、不平衡量分佈、軸承質量等)變化時的系統響應。According to orthogonal design, the value levels of the mechanical parameters were chosen, and simulation schemes were arranged ; the related analytical samples for neural network were given by flac ( superscript 2d ) calculations ; rbf neural network was trained ; the physical and mechanical parameters of an open pit slope were analyzed backwards by well - trained rbf neural network and surveyed data about spot displacements
按照正交設計要求,選定反演參數的水平,確定數值模擬方案;用flac (上標2d )差分程序計算得出相應的神經網路分析樣本;對rbf神經網路進行訓練;利用現場監測位移,對某露天礦邊坡巖體的力學參數進行神經網路反分析。分享友人