限值以下的 的英文怎麼說
中文拼音 [xiànzhíyǐxiàde]
限值以下的
英文
subthreshold-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。In summary the major research work in this thesis can be drawn as follows : 1. the techncal data and research information from woridwide aviation history about bird striking to airframe have been collected and reviewed more carefully the evolutions of bird striking load models and fem numerical compatation methods to bird strike also have been sununarized. this informational research makes great help to position further thesis work scientifically 2
本文研究工作可歸納總結為以下三個方面： 1 、較全面整理綜述了鳥體撞擊飛機結構在國內外航空史上的技術資料以及鳥撞問題理論與工程研究的歷史沿革，總結了撞擊載荷研究模型、有限元數值計算方法的發展歷程等，明確了本文研究工作的科學定位。We acquired the system ' s dynamic response when the satellite attitude was adjusted and the mode of the antenna. then modal analysis and dynamic analysis have been done to the satellite - antenna system by using the finite element analysis ( fea ) software of ansys. through the analysis we got the system ' s connatural characteristic, the amplitude - frequency characteristic of harmonic response, the power spectrum density of random vibration response, the maximal amplitude and resuming time of impact response
其次藉助ansys有限元分析軟體，對系統進行了模態分析和動力學響應分析，獲得了不同天線結構參數下的衛星?天線系統的固有特性，簡諧響應的幅頻特性，隨機振動響應的功率譜密度，以及沖擊響應的最大幅值和恢復時間等。Abstract : based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
文摘:在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下，分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗，研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果，但改性效果和樹脂的添加量並不是一個無限遞增的關系，當添加量超過一定數值以後，改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? ， 30 ? ， 30 ?的建議值Duty - free goods up to a total value of aud900 per adult ; aud450 for persons under 18 years old
每個成年人限帶價值400澳元的免稅物品18歲以下的旅客，限額為200澳元。Firstly, by numerical and theoretical analysis, the author compares some existent confidence intervals, for example, " exact " confidence interval, wald confidence interval and bayesian confidence interval, and finds some deficiencies points of the confidence intervals, whose modification version has been proposed. also, several better confidence intervals such as are also presented. secondly, for given confidence coefficient and interval width, the author constructs a class of asymptotical two - stage interval estimate procedures. at the same time, under varies restriction of confidence coefflcientent interval width, the optional sample size of the first stage has been computed by numerical computation. the numerical computation shows that the method considered in this dissertation have good properties and applied value
同時，由於poisson分佈的特性，我們知道不存在其參數區間長度小於0 . 5的置信區間，基於這些情況，我們主要展開了以下兩個方面的研究：一是利用數值計算分析與理論分析的方法對現有的若干置信區間如「精確」置信區間， wald置信區間， bayes置信區間等進行分析比較，發現了一些缺陷，針對這些缺陷，我們進行適當的修正，並得到幾種性質較好的置信區間如：修正大樣本區間jeffreys原則下置信區間二是針對已給定的置信系數與區間長度，我們提出了一種漸近的兩階段區間估計程序，並利用數值計算的方法，在各種置信系數與區間長度限定下，算出了最優的第一階段觀測次數（抽樣量） ，大量數據表明，本文考慮的方法性態良好，具有應用價值。In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )
主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。The main aspects of this dissertation are as follows : 1. employing the moving grid technique, a 3 - d moving grid based on the transfinite interpolation is developed. this grid has better adaptation than the deforming grid for flapping wing
本文的主要工作表現在以下幾個方面： 1 、引入運動網格技術，發展了一套基於廣義無限插值理論的適合撲翼計算的三維運動網格，提高了網格對撲動機翼的適應性。In this paper, the finite - element numerical analysis calculation is applied to the foundation of high - rise and multi - floor building and the evolvement law of stress and displacement of tunnel used by urban traffic to explore the mutual influence between the wall rock of underground space and high - rise building foundation, taking account of the specific construction situation in the " sanmu garden " project in dadukou district in chongqing, from the perspective of underground space static - force structure stability analysis to open a underground tunnel with 6m in span and 7. 5m in height for track traffic 20m below the surface. this paper, taking considerations of three different states, i. e. the natural state without any artificial interference, the state of high - rise buildings on the surface, and the underground tunnel state with excavation for track traffic, and four plane lines and four vertical lines, analyzes and studies the distributing law of stress and displacement of calculation section from the following aspects : ( 1 ) the main stress vectorgraph, displacement distribution graph ( ux, uy ) and chromatogram graph of stress isoline ( 1, 2, xy ) of section under different states ; ( 2 ) the contrastive distribution curve of stress ( 1, 2, xy ) of different plane and vertical lines under the same state ; ( 3 ) the contrastive distribution curve of stress ( 1, 2, xy ) of the same plane and vertical lines under different states, wishing to provide references for underground space utilization and project designing and construction of the tunnel under high - rise buildings in the future
本文結合重慶市大渡口區「三木花園」開發建設項目，從地下空間靜力結構穩定性分析角度出發，針對在該項目中涉及的高層和多層建築物以及在其地下20米處開挖了一個用於軌道交通的跨度6米，高7 . 5米的地下隧道這一具體工程情況，採用2d - 3d -有限元結構分析程序對高層與多層建築物的地基基礎及其與城市軌道交通使用的地下隧道圍巖的應力與位移演變規律進行了有限元數值分析計算，探索了地下空間圍巖與高層或多層建築物地基基礎之間的相互影響，通過考慮未受到任何人為擾動影響的天然狀態、地表存在多層或高層建築物狀態和地下開挖用於軌道交通的地下隧道狀態等三種不同狀態以及4個水平剖線和4個垂直剖線等不同情況，從以下幾個方面具體分析研究了計算斷面的應力與位移分佈規律： （ 1 ）在各種不同狀態下計算斷面的主應力矢量圖、位移分布圖（ ux 、 uy ）以及應力等值線色譜圖（ _ 1 、 _ 2 、 _ （ xy ） ）等； （ 2 ）相同狀態下不同水平與垂直剖線的應力_ 1 、 _ 2和_ （ xy ）對比分佈曲線； （ 3 ）不同狀態下相同水平或垂直剖線的應力_ 1 、 _ 2和_ （ xy ）的對比分佈曲線等，為今後在對地下空間的開發利用以及在高層建築物地下開挖硐室時的工程設計和工程施工提供參考依據。It analyse the stability with numerical simulation. finally, on the basis of geological estimation and analysis of the monitoring data and the numerical simulation, it conclude : ( 1 ) through the tracking investigation of the deformation phenomenon, and the study of the rock mass constructure of the slop, it determine the mode of the formation and destruction on the basis of aggregate analysis of the monitoring data
最後，結合地質判斷、監測分析結果及數值模擬分析結果以及對典型剖面的極限平衡計算結果，得出了以下主要成果： （ 1 ）通過對「左砂」邊坡變形破壞跡象的跟蹤調研，對斜坡的巖體結構和已經發生的破壞跡象進行深入的研究分析，結合對監測資料的綜合分析，確定了「左砂」邊坡可能的變形破壞模式。Neither the bank, its associates, nor any of their directors, officers or employees, shall be liable to the customer for any expenses, loss or damage suffered by or occasioned to the customer by reason of any action taken or omitted to be taken by any one or all of the bank, its associates, their directors, officers, employees or agents pursuant to these conditions or in connection therewith other than as a result of the fraud, wilful default or negligence of the bank, its associates, their directors, officers, employees or agents ; the bank s failure in good faith to honour any stop - payment instructions given by the customer ; the presentation to the bank of any cheque or other payment order which is post - dated ; the bank failing to honour any draft drawn on it by the customer, but the bank shall immediately return such draft to the customer through the normal channels giving the reason for the dishonour ; any loss, damage, destruction or misdelivery of or to the securities howsoever caused unless the same shall result from the negligence of, or theft by, the bank or its associates or any of their directors, officers or employees, in which event the extent of the liability of the bank shall be limited to the market value of such securities at the date of discovery of the loss and even if the bank has been advised of the possibility of such loss or damage ; unauthorised use or forging of any authorised signature as a result of the negligence, wilful default or fraud of the customer ; subject to condition 5. 5, any act or omission, or insolvency of, any person not associated with the bank including, without limitation, a third party nominee or depositary ; viii the collection or deposit or crediting to the custodian accounts of invalid, fraudulent or forged securities or any entry in the custodian accounts which may be made in connection therewith ; any malfunction of, or error in the transmission of information caused by, any electrical or mechanical machine or system or any interception of communication facilities, abnormal operating conditions, labour difficulties, acts of god, or any similar or dissimilar causes beyond the reasonable control of the bank and notwithstanding paragraph, the error, failure, negligence, act or omission of any other person, system, institution or payment infrastructure
本行其聯系人士其各董事高級人員或雇員均毋須向客戶因以下理由而使客戶蒙受或產生之任何開支損失或虧損負責： i本行其聯系人士其董事高級人員雇員或代理人根據此等條件採取或遺漏採取有關之行動，但由於本行其聯系人士其董事高級人員雇員或代理人之欺詐行為故意失責或疏忽所造成者除外ii本行本真誠地未能依約替客戶執行止付指示iii向本行提交任何遠期支票或其他付款指示iv本行未能兌現由客戶開出之匯票，但本行將立即透過正常渠道將該匯票退回客戶，並解釋拒付之理由v無論如何導致之任何證券之損失損毀毀壞或錯誤交付除非上述各項乃因本行或其聯系人士或其任何董事高級人員或雇員之疏忽或盜竊所引致，而在該等情況下，本行的責任將只限於在發現損失當日該等證券之市值，以及即使本行已獲知該等賠償之可能性vi因客戶之疏忽故意失責或欺詐行為而導致的任何偽造授權簽名或不獲授權使用該簽名vii在第5 . 5 a條之規限下，與本行無關者之任何行動或遺漏或無償債能力包括但不限於第三者代名人或寄存處viii代收或存入或貸存於保管人賬戶的無效偽造或假冒證券或在保管人賬戶記入可能與此有關之賬項ix任何電子機械或系統失靈或因該等機件或系統產生的資料傳送錯誤或任何通訊設施之終斷不正常操作情況勞工問題天災或非本行所能合理控制之任何類似或非類似原因及x盡管有第ix項，任何其他人系統機構或付款設施的錯誤故障疏忽行動或遺漏。2 if a higher value of carriage is declared subject to the limits imposed on the value that may be declared as noted immediately below, fedexs liability for loss, damage or delay of a shipment will not exceed its repair cost, its depreciated value or its replacement cost, whichever is the least
按照以下申報貨件價值之限額而定，聯邦快遞對遺失損壞或延誤等所承擔的責任不會超過貨件修繕費用折舊后價值或更換費用取三者最低者。In chapter two, we consider full disceret scheme of mixed finite element methods for the following initial - value problems of linear integro - differential equations of parabolic in this chapter, we give the error analysis of this full discrete scheme and get optimal error estimates for the discrete solutions of u and p
第二章討論下述線性拋物型積分微分方程初邊值問題混合有限元方法的后差全離散格式。給出了該全離散格式的誤差分析，得到了離散解逼近未知函數u以及伴隨速度p的關于空間和時間的最優階誤差估計。Fist ly, use mass equivalent method to predigest the original rotor system. secondly, use transfer matrix arithmetic to have finished the relative program to calculate the critical speed of flexible multi - tray rotor bearing system by matlab language. thirdly. finish program the unbalance response using riccati - transfer matrix arithmetic and finity buck arithmetic. fourthly, answer to the high vibration of uncontroled system when cross the critical speed, come out to adopt changing clearance damper bearing to control the viberation
本文對多柔盤轉子-支承系統的振動現象做了以下初步探索：用質量離散化方法把原轉子系統簡化；採用matlab語言編制了對傳遞矩陣法計算多柔盤轉子-支承系統的臨界轉速；用matlab語言對riccati傳遞矩陣法和有限元法編制了程序計算系統的不平衡響應；並針對其過臨界轉速時振動較大的現象，提出採用變間隙控制油膜剛度和阻尼，從而使原系統的在特定轉速（臨界轉速）的一段范圍內不平衡響應減小；並從被動控制與主動控制兩方面進行數值模擬，取的了較好的控制效果。However, even under this regulated value, you may be requested to further reduce the sound volume to proper level, to produce environments easy for visitors to listen to the explanation, in case there is any complaint from other exhibitors, etc. in the vicinity or in case the noise level in the entire fair site became high
但是，即使在此音量規定值以下，如果附近參展方等提出意見或者會場整體的噪音程度過高的話，則不受此限制，為了創造一個入場者容易聽清講解的環境，盡管在規定范圍內也請降低並控制在適當的音量范圍。In order to assure the bonded - strengthened beams to have ductility and fully exert the compressive capability of concrete, the paper deduces the lower limit compressive height used in design from the plane section assumption and theory of limit destruction. the lower limit compressive height is when the strain of compressive edge fiber reaches its peak value ( 0. 002 ) and the externally bonded material reaches its limited strain ( 0. 01 )
由平截面假定和界限破壞理論，並保證粘貼加固梁具有一定的變形能力和較為充分地發揮混凝土的抗壓性能，本文以受壓區混凝土邊緣應變達到峰值應變（ 0 . 002 ） ，而加固材料應變剛好達到極限值（ 0 . 01 ）的界限破壞時混凝土受壓區高度做為粘貼加固梁設計高度的下限值_ （ c0b ） h 。Based on the 15 operations regulated by gb14761 ? 999, the control system was tested in some kinds of automotive. the result shows that air fuel ratio is controlled near the theoretical value under steady condition and exhaust emission is under the regulated value. the system is fit for the station of our country and the need of environmental protection it is easy to realize, has a low cost and a better control result, and is worth to spread
根據國家最新的法規gb14761 ? 1999規定的15工況法，在桑塔納、捷達、夏利、富康、奧拓幾種轎車上對控制系統進行了實車實驗，結果表明在穩定工況下空燃比被控制在理論值附近，尾氣排放量在法規規定的限值以下。Duty - free goods up to a total value of aud900 per adult ; aud450 for persons under 18 years old. i mportation of any food item is prohibited
每個成年人限帶價值400澳元的免稅物品18歲以下的旅客，限額為200澳元。Because the models are all empirical ones established based on deficit experiment, the application of them should be limited above the low soil moisture of the water deficit experiment according to statistical theory, otherwise the prediction of crop yield by the models may produce considerable error
作物水分響應模型均為按非充分灌溉試驗得到的經驗模型，按數理統計和應用要求使用時應限制在非充分灌溉試驗處理的水分下限值以內，不宜隨意外推，否則預測或模擬的作物產量可能會有較大誤差。分享友人