質點法 的英文怎麼說
中文拼音 [zhídiǎnfǎ]
質點法
英文
particle method-
The point of this brief historic reiew, if there is one, is that the meaning of a word can change, and that the meaning of albuminuria has changed as the methods to detect and characterize proteins hae eoled
如果說這篇簡短的有歷史意義的綜述有要點的話，那就是它指出了一個單詞的含義是可以變化的，而且隨著檢測和鑒定蛋白質方法的變化，白蛋白尿的含意也發生了改變。So this base isolation technique has profound prospects. unfortunately there exist definite difficulties in the calculation because of the nonlinear of the base friction force. now, both the equivalent damping method and the numerical calculatin of the vibration response of the base - isolated buildings are frequently used in the calculation of the seismic response of the base - isolated building. however both of them have certain drawbacks. in this paper, the response of the building with base - isolation system is derived by the method of fourier expansion for the friction force and the earthquake response. at the same time, the sliding vibration character of inertia of a single mass structure and the sliding vibration response of a muti - mass structure are discussed. the stable condition of the sliding base isolation system of a structure is given. in the end, two circes of base fixation and base sliding are analyzed by adopting ansys
本文利用對摩擦力和地震響應進行付氏級數展開的方法導出了基底具有摩擦隔震系統的地震反應。同時，文中從研究單質點結構的滑動振動慣性力入手，進而對多質點結構體系滑動振動反應進行探討，分別給出了結構滑動隔震的自身穩定條件。最後，本文利用ansys對基礎固定和基礎滑移隔震兩種工況進行了動力模擬模擬分析，進一步證實了基礎滑移隔規律。Strip - shape underground structures such as the tunnels and tubes for various uses can be treated as a beam on elastic foundation under earthquake condition ， although there exists soil - structure interaction ， the foundation soil vibration is dominant in other words ， analysis of earthquake response of the soil is essential to this end ， simplified models ， ( i. e equivalent mass system models based on some equivalence criteria ) are proposed ， instead of a general 3 - d continuum model in this study ， equivalence criteria are proposed and the simplified models are compared the single - mass - string model is proved to be valid and therefore applied to the analysis of earthquake response of the pearl river immersed tunnel
條裝地下結構如隧道、各種埋設管道等一般可看作彈性地基梁進行靜力及動力分析在地震條件下，結構與土相互作用，但土的振動成為主要因素為分析土的地震響應需把基土這一三維連續體作簡化處理，簡化成為等效多質點模型本文著重探討這種簡化模型的建立方法，推導等效方程，通過幾種簡化體系的分析比較，論證單質點串體系的合理性，並將其應用到廣州黃沙芳村珠江水下隧道工程的地震響應分析，為抗震設計提供依據Molecular weight determinations on the purified material were conducted in benzene solutions by cryoscopic method.
用冰點法，在苯溶液中對純的物質進行了分子量測定。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。The sixth chapter studies the techniques in measuring the bearings changing rate and centrifugal acceleration, and poses several algorithms of measuring pulse doppler shift frequency changing rate. to sum up, this paper studies the key problems in soplat based on particle kinematics and some solutions to them
總而言之，本文系統地研究了基於質點運動學的單站無源定位與跟蹤領域的主要關鍵技術問題並提出了相應的解決方法，其中某些分析結果和方法可直接應用於實際的工程應用。The modified collocation method was applied to satisfy the essential boundary conditions
採用修正配點法，以滿足其本質邊界條件。Because almost all the ore in the surface of ground and in the shallow stratum has been found, the increase of resources should be concentrated on deep stratum and outer of the mine enterprise. but only depended on the normal geological methods and regulations, the effect is not good. so we must introduce new geological theories and methods
由於地表礦、淺層礦都已枯竭，增儲的重點應集中在礦山深部和外圍找礦上；僅僅依靠常規地質方法和手段，很難取得理想的效果，因此必須引入新的地質理論和新的找礦方法。After analysis of the parameters of the devices, a conclusion is achieved that we can directly use the parameters of the dampers instead of devices to design the buildings in the common situation. then a one - freedom modal is used to compare the differences of performance between these two dampers under harmonic load. finally, three buildings, which are installed with viscoelastic dampers, viscous dampers and no dampers respectively, are analyzed using finite element method, time history method and response spectrum method, and the result is the same as that of harmonic analysis
如果支撐剛度較小，應採用本文推倒的公式計算阻尼裝置的性能參數；利用單質點模型進行阻尼結構在簡諧荷載作用下的性能分析，並比較了粘彈性與粘滯阻尼結構在振動控制方面的性能差異；最後利用數值方法分別對未安裝阻尼裝置結構，安裝了粘彈和粘滯阻尼裝置的三種結構進行了反應譜和時程分析，得到了與理論分析一致的結果。By the simulation, it is indicated that the curve motion model based on the particle can describe the curve motion of the target. and it is shown that the performance of the ukf algorithm is more precise than the tradition nonlinear filtering technique. by the contrast between the simulation results and the positioning result of commercial data process software,
模擬結果表明，基於質點的曲線運動模型可較準確地描述進行曲線運動的載體; ukf演算法作為衛星導航系統的非線性濾波技術，較之傳統的線性濾波技術可獲得較高的定位精度;其定位結果與商業數據處理軟體相比，可滿足定位精度要求，該演算法可以直接應用於衛星導航系統的軟體實現。This paper deals with seismic response of a tunnel - soil system immersed tunnel ， as an underground structure ， must be compatible with the deformation of the surrounding soil thus the simplified model for a tunnel - soil system is established through two steps at the first step ， an mdof system is developed for modeling the foundation soil to this end ， dynamic behavior of the foundation soil is analyzed a typical section of the foundation soil simplified as a single mass - spring system on the basis of some equivalent criteria those mass are linked longitudinally by elastic springs to form an mdof system at the second step ， the tunnel is treated as a beam on elastic foundation ; that is ， the tunnel is connected with the soil massed to form a tunnel - soil system this model has been applied to the seismic analysis of huangsha fangcun immersed tunnel across the pearl river in guangzhou design recommendation is proposed on the basis of this analysis
研究沉管隧道在地震條件下整體受力的分析方法分兩步建立計算模型第一步通過分析場地地基土切片的動力特性，根據等效原則將其化為等效單質點體系，然後在縱向用等效彈簧連接而成為多質點體系的地基土計算模型；第二步將隧道看作彈性地基梁與上述多質點體系通過等效彈簧連結而得到土隧道體系的計算模型本文結合廣州黃沙芳村珠江水下隧道工程實例建立了具體的計算模型並對多種不同的約束條件，進行了縱向與橫向地震響應時程分析，為該隧道的抗震設計提供依據In section 1, the name of " overlap of law articles " is united ; then it ' s definition is dwelled on in section 2, the viewpoint is given that overlap of law articles is the overlap relation in the extensions of crimes, which are decided by the constitutions of crimes in specific provision of criminal law ; it ' s characters are studied in section 3
這部分在評述對法條競合分類的各種觀點的基礎上，提出以「刑法分則條文規定的兩罪名外延間的競合關系」為標準，把法條競合分為「包含關系」和「交叉關系」兩種。然後具體犯罪行為的性質，把法條競合犯分為「特殊法條競合犯」和「同等法條競合犯」兩類。It is necessary to make more profound research in the field of settlement prediction. in this dissertation, on base of the existing work, the three - point method which is the mostly used method in the settlement prediction has been studied thoroughly firstly, which indicated and discussed the deficiency of the three - point method, and as a result an improved three - point method was put out ; secondly, by analyzing the characteristics of the process of the foundation settlement we put forward the model for predicting foundation settlement based on " law of massaction ". the predictive result was ideal as we applied it to the 3. rd coalfield project of wenzhou power plant and project of wenzhou peninsula, which shows that the model deserve use in much more projects
本文在對國內外關于地基沉降預測理論的研究進行綜述的基礎上，首先對工程中常用的三點法進行了細致深入的研究，指出以工程實測數據證明的現有三點法在應用時存在的不足，針對該不足進行了探討，並在此分析基礎上提出了預測結果更為理想的改進三點法；其次區別傳統沉降預測方法的研究途徑，本文從沉降過程的發展特徵出發，根據描述物化反應過程發展特徵的質量作用定律原理，探討了一種新的地基沉降預測方法：地基沉降預測的「質量作用定律」模型；本文還以溫州三期煤場工程及溫州淺灘圍塗促淤工程為背景，對上述改進三點法、地基沉降預測的「質量作用定律」模型的工程應用與傳統的預測方法進行了比較，認為這些方法是可行的，並得出一些有用結論。Anodizing of aluminium and aluminium alloys - assessment of quality of sealed anodic oxide coatings part 4 : dye spot test with prior acid treatment
鋁及鋁合金陽極氧化氧化膜封孔質量的評定方法第4部分：酸處理后的染色斑點法Rkpm a structural analysis with crack problems by reproducing kernel particle methods
含裂紋體結構分析中的再造核質點法The reproducing kernel particle method for numerical analysis of high - speed impact process
高速沖擊過程數值分析的再生核質點法Dynamic impact processes was analyzed and simulated with reproducing kernel particle method ( rkpm )
摘要應用再生核質點法實現了沖擊過程的數值模擬。In this paper, the basic principles of rkpm meshless method are introduced and the program of axisymmetric rigid - plastic meshless method is developed
摘要介紹了無網格再生核質點法（ rkpm ）的基本原理，並編制了剛塑性軸對稱問題的無網格法程序。For a impact process with a normal impact velocity, the control equation for rkpm was deduced based on a small strain and incremental elasto - plastic constitutive law
針對沖擊速度較低的情況，假設沖擊過程為小應變，並引入彈塑性增量本構關系，推導出沖擊過程的再生核質點法計算控制方程。The 10 x 10 grids can be used to deal with the image of 160 x 140. only after processing 224 pixels, the reference figure center and average radius of object can be calculated by particle method. it is very effective to reduce processing area and to improve processing speed
對160 140大小的圖象以10 10網點處理，僅需處理224個象素點后，就可以通過質點法計算出目標物體的參考形心和參考平均半徑，有效地減少了后續處理的圖象面積，提高了處理速度。分享友人