element of time 中文意思是什麼

This article discussed ar modeling method, capon method, music method and mn method four kinds of high resolution algorithms principle and has separately made the computer simulation in the ideal situation to the above four algorithms. through the comparison, the beam width of high resolution algorithm is much narrower than conventional beamforming method. then unifies the actual utilization, discussed the influence of time delay unbalance, time domain sampling, plane wave supposition and array element with scope and phase not identically to the beamforming and made the computer simulation

本文首先討論了ar模型法、 capon法、 music法和mn法四種高解析度演算法的原理，在理想的情況下分別對上述四種演算法作了計算機模擬，通過比較，高解析度演算法的束寬比常規波束形成法窄得多;然後結合實際運用時的情況，重點探討了延時失配、時域抽樣、平面波假設和基陣的幅相不一致對波束形成的影響並做了計算機模擬。

Diet acrimony, sootiness, salt bloats, mildew changes, cankered food : hot food stimulates gastric mucous membrane, as time passes injures gastric mucous membrane ; carcinogenic substance of fumigated food generation can be caused and aggravating illness ; nitric acid salt is contained in souse food, very powerful carcinogen can be formed after with food medium nitrite is united in wedlock - - inferior saltpetre amine ; mildew changes element of very strong carcinogen yellow aspergillus is contained in food ; cankered material can produce effluvial carcinogen aldehyde. 2

忌食辛辣、煙熏、鹽腌、霉變、腐爛食品：辛辣食物刺激胃粘膜，久而久之損傷胃粘膜；熏制食物產生致癌物可誘發和加重病情；腌制食物中含有硝酸鹽，和食物中的亞硝酸鹽結合后可以形成很強的致癌物質? ?亞硝胺；霉變食物中含有很強的致癌物質黃麴黴素；腐爛的物質可以產生惡臭的致癌物質乙醛。

The content of extinctive prescription system itself determines the object must have the element of limitation. the starting time and the legal effects are the angle which must be concerned when to investigate the object of extinctive prescription

消滅時效制度本身的內容決定了消滅時效客體必須具備的要件;消滅時效的起算時間和法律效果則是考察消滅時效客體必須考慮的角度。

This paper discusses the characteristic of inductivity coupled plasm atomic excite spectroscope and applies the analysis method to measure the atmosphere corrosion rusty layer samples from qingdao and chengdu. we get the relative content of each element of rusty layer and show the charitable situation that the relative content varied with the change of corroded environment and time

概述了電感耦合等離子體光譜法的特點，並運用該光譜法對青島和成都兩地的大氣腐蝕銹層樣品進行了比較測試，得出了銹層中各元素的相對含量及其隨腐蝕環境和時間的變化情況

In this paper, a crank - nicolson mixed element method, a nonlinear galerkin mixed element method for the non stationary conduction - convection problems time second order accuracy fully discrete formats and a two - level mixed element method with backtracing for the stationary conduction - convection problems are presented and analyed, respectively, an error analysis are provided for the crank - nicolson method of time discretization applied to spatially discrete galerkin mixed element approximations of the nonstationary conduction - convection problems

本文分別給出了非定常的熱傳導-對流問題的crank - nicolson混合元法時間二階精度全離散格式，非線性galerkin混合元法時間二階精度全離散格式以及定常的熱傳導-對流問題回溯二重水平法。討論了時間上的crank - nicolson離散方法應用於非定常的熱傳導-對流問題的空間離散的galerkin混合元近似。

On the basis of experimental research, this thesis applies 2 - dimensional non - linear finite element method to the analysis of transient temperature field on the section by means of relatively high precision triangular element of six joints. when the temperature field is analyzed, finite element reseaus are divided in space field and finite difference reseaus are divided in time field, and then the program is compiled. the computing results are in good agreement with the test data

在試驗研究的基礎上，本文採用精度較高的三角形六結點單元對構件截面二維非線性瞬態溫度場進行了有限元分析，即在空間域內採用有限元網格劃分，在時間域內採用有限差分網格劃分，據此編制了計算程序，計算結果與試驗數據符合較好，程序穩定性好，精度滿足要求。

Digital image processing consume a large amount of memory and time commonly. basing on the advantage of fpga, the paper design harware module by hdl ( hardware language ), i. e., some function is achieved by les ( logic element ) of the fpga. the real - time of digital image processing is achieved by this. the sample and display of digital image is the important part. so, the paper mainly design the sample and desplay module. the sample card is designed and it ’ s word mode is configured according china ’ s cvbs ( composite video bar signal ). for acquiring the image and storing it correctly to sram, the paper design the sample - control module. the sample module can work correctly using least time. the reliability and real - time achieve the reference. according the vga principle and scheduling of the ths8134, the paper design a vga - control module by hdl. firstly, the control signal is synthesized secondly, the horirontal and vertical synchronization signals is synthesized according to the vga interface standard

圖像處理的特點是處理的數據量大，處理非常耗時，為實現數字圖像的實時處理，本文研究了在fpga上用硬體描述語言實現功能模塊的方法，通過功能模塊的硬體化，解決了視頻圖像處理的速度問題。圖像數據的正確採集和顯示輸出是其中的兩個重要的模塊，因此，本文主要完成了圖像數據的採集和顯示輸出的設計。本文設計了採集卡，並要對其工作模式進行了配置和編寫了採集控制模塊，在採集控制模塊的控制下，將數字圖像數據正確無誤的存儲到了sram中。

Walking space system constitutes an essential element of community image and community view, at the same time, walking environment is also one of the important carrier of neighborhood culture, which includes rich content of culture

步行空間體系構成了社區形象和社區景觀的基本要素，同時，步行環境也是鄰里文化的一個重要載體，其中包含了豐富的文化的內涵。

So according to the technology regulation of reclamation engineering, hydraulic calculation must be carried out in the design of final closure. this paper firstly introduces the progression and present situation of reclamation engineering, emphasizing on the features of present reclamation and on the experiences and theories of home and abroad ; using fortran perfects the hydraulic calculation program of the closure and makes the program to meet different conditions ( such as considering flood, the variation of time interval, multi - entrance, multi - reservoir capacity ), and after comparing and analyzing a great deal of schemes, the reasonable computation scheme was brought up ; the interface of the program was carried out by the programming language vb to make the process of calculation become easier and more distinct, so the result can be analyzed and handled more directly ; vb is used in the later management of the result to plot the graphic chart of the isoline of the maximum of hydraulic element ( the velocity of flow, the drop height and the rate of flow ) automatically ; finally it was applied in the reclamation project of dongbidao of fuqing

本文首先介紹圍海工程的發展進程與國內外圍海的開發現狀，重點介紹了我國目前圍海工程的特點及在圍海工程實踐中積累的經驗和理論；利用fortran語言完善堵口工程龍口水力計算程序，使程序可以滿足圍海工程復雜工況下（如考慮內港洪水、計算時段的變化、多口門、多庫容、多水閘）的龍口水力計算，並進行大量方案的比較和分析，提出合理計算方案；利用面向對象的可視化編程語言vb進行界面開發，使計算過程有良好的人機界面，更直觀地對計算結果進行分析和處理；計算結果的后處理採用vb編程實現龍口水力要素最大值等值線圖的繪制；並運用所編軟體對福建省福清市東壁島圍墾工程進行龍口水力計算，為堵口合龍提供科學依據。

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。

The solution algorithm involves tracing the characteristic lines backwards in time from a upwind element of an interior point. two advanced mehtods, quasi - consistence and consistence hexahedral element method, for three - dimensional advective problem are developed. and comparison of these two methods with linear interpolating function method is implemented

當re 400時，流動明顯地具有二維性； re 800時，流動具有一定程度的三維性，而且出現了次迴流區； re 1000時，流動則具有明顯的三維性。

It introduces, at the same time, an element of chance and adventure which adds to the stimulus of city life.

同時，它又提供各種機會和冒險，使城市生活益發富於刺激性。

Most of the ice age spans a period of time for which no element has an appropriate decay rate

冰川期的大部分期間都找不到具有合適衰變率的元素。

By the time of yanshanian structural hydrothermal superimposed caused the ore - forming chemical element of the pyritization sources activated, it results from the elements had been moving and expected turning into minerals in the beneficial structural position

經燕山期構造熱液的疊加，驅使礦源層中的成礦元素活化、遷移，在有利的構造部位富集成礦。

In neuro - element pid and psd controllers if the time delay of the controlled object, is too long, the overshoot of the system will be too high and system even will be unstable. in order to solve this problem, the neuro controller is combined with the smith - predictor. thus the influence of time - delay to control system is overcome effectively

單神經元pid和psd控制演算法在被控對象存在大時滯時會產生超調，甚至使系統失穩，為了解決這一問題，本文最後將smith預估器引入了單神經元控制器中，從而很好地解決了時滯對系統的影響。

Presents the investigation of the heat conduction behavior, internal thermal stress field of specimen under thermal shock and microscopic damage and failure of the tungsten based composites by combination of macroscopic and microscopic analyses and integration of material science and mechanics ; describes a microscopic mechanical model based on the microstructure of components with macroscopic stress applied to the microscopic model as that of maximum principal stress at the center, and the fringe of the specimen, and the microscopic stress fields obtained through calculation by the finite element method, and concludes from test results that the maximum principal stress is first generated inside the test coupon, and a failure will be first initiated in the inclusion if the material fails at this time ; the maximum principal stress moves to the edge of the test coupon after the test coupon is heated for a period of time, and the failure will first be initiated in the base if the material fails at this time

從材料設計的思想出發，採用宏觀與微觀、材料科學與力學相結合的方法，對鎢基復合材料的熱傳導行為、材料在熱沖擊載荷下的內部熱應力場及材料細觀結構的破壞行為進行了詳細的理論研究.根據鎢基復合材料的細觀組織結構建立了材料細觀模型.在宏觀分析的基礎上，分析了材料微結構內部的破壞行為.分別取試件心部與邊緣主應力值最大點的應力狀態，施加在所建立的模型上，用有限元方法計算了模型內部的彈性應力場.結果表明：試件主應力最大值首先產生在試件內部，此時，如果材料發生破壞將先從夾雜中開始；加熱一段時間后試件中的最大主應力值轉移到試件邊緣，此時材料發生破壞將先從基體中開始

This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass, which distill the bio - oil in the domestic and international area, as well as the existing problems. this thesis primarily include following aspects : ( l ), by experimenting and measuring the energy ( heat value ) and the content of c, h, n chemical element of right 20 kinds of common biomass, on the base of the experimental result, and respectively established the biomass energy predict experiment formula with the element of h and c is from change, and passed the ro. os examination, which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ), proceeded the tg and dtg experimentation equal velocity ( 10 ? / min, 20 ? / min, 40 ? / min, 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples, according to the experimental data and arrhenius formula, we established the dynamics model of pyrolysis of, then, using the goast - redfern and p function, we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy, and established the every kind of dynamics model of pyrolysis of biomass, all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ), in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles, we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope, we concluded the l / d ratios usually is from 5. 0 to 6. 0, the average is 5. 3 ; ( 4 ), we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field, we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis, and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical, all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ), according to the above experiment result, synthesize to make use of the engineering the mechanics, engineering the material, machine the design to learn the principle, deduce, establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ), we gave the reactor ' s smallest cone angle certain, reactor cone wall strength design theory, the reactor production ability theory, the power design method and the critical rotation velocity theory

本文較全面、系統地綜述了國內外生物質熱解液化制取生物燃油技術研究發展現狀及存在的問題，主要研究內容有： （ 1 ）實驗、測定了20種常見生物質的能量（發熱量）和c 、 h 、 n元素含量，根據實驗結果分別建立了以h和c為自變量的生物質能量預測經驗公式，並通過r _ （ 0 . 05 ）檢驗；為閃速熱解液化裝置能量轉化率計算和生物質能量利用率計算提供了依據和方便； （ 2 ）選擇了8種生物質試樣作了等加熱速率（ 10 min 、 20 min 、 40 min 、 60 min ）和恆溫加熱的tg和dtg實驗，根據實驗數據和阿倫尼烏斯公式建立了生物質熱解反應動力學微分方程，並採用goast - redfem積分法和p函數對其動力學參數進行了求解，解析出各種生物質的頻率因子和活化能參數，進而建立了各種生物質的熱解動力學模型，為科學確定反應器的閃速熱解工作溫度范圍及熱解反應動力學描述，提供了理論和依據； （ 3 ）為研究和確定不同尺度的生物質顆粒中心達到全熱解的時間，在體視顯微鏡下對不同粒度的生物質顆粒的長徑比進行了實驗觀察和測定，得出生物質的長徑比（ l d ）一般在5 . 0 6 . 0之間，平均為5 . 3的結果； （ 4 ）採用復雜溫度場傳熱學理論對生物質傳熱過程及充分熱解時間理論進行了研究，解析推導出了不同尺寸生物質顆粒中心溫度達到充分熱解溫度的時間（ t ） ，得出了理論推導的充分熱解時間與最大產油率的熱解時間相一致的結果，為閃速熱解反應器固相滯留時間設計和預測提供了理論依據； （ 5 ）根據上述實驗結果，綜合運用工程力學、工程材料、機械設計學原理，推導、建立了轉錐式閃速熱解反應器物料滯留時間（ ）與轉速（或頻率）合理匹配理論； （ 6 ）提出了轉錐式閃速熱解反應器的最小錐角設計、錐壁強度設計、生產能力設計理論和功率計算方法及臨界轉速理論等。

The electromagnetic field theory and the variation method is applied to found the 2d mathematics model during the process of starting of the induction machine with compound cage rotor. the dispersion, element analyse and collectivity composing of time - variation field are given

利用電磁場理論和變分法建立了復合籠條轉子感應電動機起動時二維電磁場的數學模型，給出了正弦時變場單元分析過程和離散格式以及最終的總體合成方程。

Regard construction of the structural frame system of the concept of strategic management accounting as the main content studied, proceed from construction principle of the structural frame of the concept of strategic management accounting, this paper structures the frame mode of the logic starting point which regards goal of strategic management accounting as the concept structure basic content system of strategic management accounting, and analyze systematically to every key element of basic content of concept structure of the theory of strategic management accounting at the same time

摘要本文以戰略管理會計概念結構框架體系的構建為研究的主要內容，從戰略管理會計概念結構框架的構建原則出發，構建出以戰略管理會計的目標作為戰略管理會計概念結構基本內容體系的邏輯起點的框架模式，同時對戰略管理會計理論概念結構基本內容各要素進行了系統的分析。

Hiding an element does not reduce the amount of time required by a browser to display a page

隱藏元素不會減少瀏覽器顯示一頁所需的時間。但是，瀏覽器忽略不顯示的元素。