In order to study the nonuniform temperature rise and thermal effect in the Yb:YAG crystal,based on the theory of semi-analytical thermal analysis and working characteristic analysis of Yb:YAG microchip with super-Gaussian beam end-pumping and back-face cooling,a new solution of heat conduction equation was introduced and the general expressions of temperature field,thermal distortion field and additional optical path differences of Yb:YAG microchip were obtained respectively.

為了研究抽運光在Yb：YAG晶體內(nèi)產(chǎn)生的非均勻性溫升以及引起的熱效應(yīng)問題aiai永久网站网站，以半解析熱分析理論為基礎(chǔ)，結(jié)合超高斯光束端面抽運、背向冷卻Yb：YAG微片工作特點分析，采用熱傳導(dǎo)方程一種新的求解方法美女污疼视频网站，得出了Yb：YAG微片內(nèi)部溫度場亚欧中国国产在线观看AV、熱形變場欧美性免费、附加光程差的半解析計算表達式。

The vapour and plasma ignition times of the target are got based on the equation of heat conduction and cascade model. We suppose that the plasma is ignited when 210 generations of new electrons are born in vapour generation time. The influence of temperature on the thermodynamics and optics parameters of material also have been considered in the model. The resulting theory has good agreement with the experiment and overseas report. A blade method to measure the laser spot is given in this paper with validation and error analysis. The plasma threshold of metals in atmosphere and water ambients both are diagnosed with the light deflection and piezoelectric transducer. A Q-switched pulsed Nd:YAG laser operating at infrared (1064nm), visible(532nm) and ultraviolet (355nm) wavelengths has been used. Al欧美丰满大乳乳液在线观看网站免费、FeA性视频AAA、Cu are used as targets and get a similar results with both method. Theoretical and experimental analyses are applied on the influence of wavelength on the threshold have been done, both of which have shown that the plasma threshold of metals decrease as the laser wavelength increases; The plasma threshold of metals are higher in water than in air and the pressure of the shock wave in water is five times higher than in air.

從熱傳導(dǎo)方程和雪崩電離機制出發(fā)，假設(shè)當電子增值2~(10)倍時黄色视频福利大全，考慮了溫度對材料熱力學和光學參數(shù)的影響時www.噜噜噜，得到了氣化和等離子體點燃的時間，利用該模型進行計算得到的結(jié)果與國內(nèi)外報道及自行通過實驗測得的閾值基本一致性爱视频人妻；提出了利用刀刃法測量激光光斑面積的方法老妇女棚户区卖淫对白视频，并通過實驗進行了驗證和誤差分析；利用光偏轉(zhuǎn)裝置和壓電換能器分別對空氣和水中金屬等離子體點燃閾值進行了實驗診斷性感美女毛片视频，激光器均為調(diào)Q—YAG激光器(波長1064nm无码永久免费网站三级片，532nm，355nm日日摸夜夜摸人人看亚洲综合，脈寬10ns)大片A，靶材分別為Al、Fe和Cu大线香蕉在线视频网站观看，兩種測試方法得到的等離子體點燃閾值基本一致操操操操操操人人人人人操；本文從實驗和理論計算兩個方面討論了波長對等離子體點燃閾值的影響，均得到了等離子體點燃閾值隨著波長的增加而減小的結(jié)論日韩综合无码视频一区二区三区；對空氣中和水中不同環(huán)境下金屬等離子體的點燃閾值進行了比較研究轻点肏我在线观看91，得到了金屬在水中的等離子體點燃閾值比空氣中的大，且水中產(chǎn)生的沖擊波的壓強是空氣中的5倍左右的結(jié)論亚洲欧美日本一区二区综合。

Based on thermal conduction theory, a thermal model is built up to get the effective thermal content and the effective thermal conductivity to be 1.0×10^(-3) W/K and 8.1 μJ/K, respectively, and the temperature-fluctuation noise is nearly 1.73×10^(-10)W/Hz(superscript 1/2). According to the device operating principle and energy equipartition theory of thermodynamics, the mechanical-thermal noise is 9.96×10^(-9) W/Hz(superscript 1/2), and the background noise is nearly 3.22×10^(-11)W/Hz(superscript 1/2), so that the normalized detectivity is deduced to be 9.03×10^6 cmHz(superscript 1/2)/W.

從理論上建立了器件的基本熱模型三级片AAA，推導(dǎo)得到器件的等效熱熔和等效熱導(dǎo)分別為8.1μJ/K和1.0×10^(-3)W/K，溫度噪聲約為1.73×10^(-10)W/Hz(上標 1/2)免费性生活福利视频；通過器件的工作機理和能量均分原理欧美wwwwwwww，推導(dǎo)得到熱機械噪聲的等效噪聲功率約為9.96×10^(-9)W/Hz(上標 1/2)，器件的背景噪聲約為3.22×10^(-11)W/Hz(上標 1/2)，從而得出器件的歸一化探測率約為9.03×106cmXⅩXX干逼。

A new non-linear heat conduction equation based on equivalent time is advanced and applied to solve the temperature field and stress field of Longtan RCC dam.

用化學反應(yīng)速率描述溫度對混凝土絕熱溫升的影響最近2019年在线中文字幕大全，求解基于等效時間的非線性熱傳導(dǎo)方程，對龍灘水電站碾壓混凝土壩的溫度場和徐變應(yīng)力場進行了仿真計算久久亚洲国产中精品文字。

The hemispheres of the brain display clear functional differences. Language and speech, brief duration stimuli, and detailed information are processed in the left hemisphere in most individuals. The right hemisphere appears to process information in a more holistic fashion, preferring spatial and tonal information. Lesions to Wernicke's area in the dominant hemisphere result in a receptive language deficit with relatively intact speech fluency, whereas damage to Broca's area results in loss of speech fluency. Damage to the arcuate fasciculus connecting these two regions will result in conduction aphasia, and damage to all of these regions will produce global deficit .

大腦的兩個半球顯示清楚的功能上差異jlzz大全高潮多水老师，在多數(shù)個體中的左半球負責著語言以及言談簡短期間的刺激及細節(jié)般的資料處理，右半球則明顯地在一種較多全體論的潮流去處理資訊淫荡少妇一级性爱视频，較優(yōu)於空間及音樂的資訊一级特黄aa毛片大片在线，在顯性半球魏尼凱區(qū)域的損害導(dǎo)致於語言接收的不足，隨著相對完整的流利言談伊甸园永久地址在线2022，雖然布洛卡區(qū)域的損害會引發(fā)言談流利的喪失亚洲毛片在线播放，有關(guān)於這兩個區(qū)域?qū)瓲畹募∈膿p害將導(dǎo)致失語癥，同時對這區(qū)域的所有損害也將產(chǎn)生球體的不足亚洲欧美性爱一区。

The monotonous demonstration of scalps with electrodes attached to them, in order to demonstrate the contained conduction of electrical charges, is a scientific fatuity, in so far as it is intended to demonstrate comprehensively the capability of conveying charges to the brain, or for that matter, to any nerve in the body, as a form of invisible torture.

單調(diào)示范scalps電極重視他們国产亚洲真人视频在线观看，以顯示包含傳導(dǎo)的電氣費，是一個科學的昏庸可以直接免费看黄色视频的网址，在目前為止黄片久久免费看aV，因為這是為了表現(xiàn)出全面的能力，輸送費到腦部免费欧洲毛片在线视频，或就此A毛片毛片看免费一A毛片，對任何神經(jīng)在體內(nèi)，作為一種無形的折磨日韩色情国内自拍网页。

This paper studies the concept and key facts of the enterprises' autonomous technological innovation, then it constructs a model of the key factors' conduction mechanism according to the logic of the SCP structure, finally it analyses the innovation path of china's enterprises and suggests that under the resources constraint, the feasible solution of china's enterprises is congregating resources to capture the subdivide market, then taking this as the chance, realizing the transformation from partial breakthroughs to overall rising by technology accumulation.

本文在現(xiàn)有研究的基礎(chǔ)上欧美一级人人曹，研究了自主技術(shù)創(chuàng)新的概念及其關(guān)鍵因素，然后按照戰(zhàn)略－行為－績效的邏輯關(guān)系在线国产福利影院，構(gòu)造了關(guān)鍵因素間的傳導(dǎo)機制模型国产1000黄色网站，對我國企業(yè)自主創(chuàng)新的路徑進行分析，認為在資源約束下性交小说在线观看，我國企業(yè)的可行途徑應(yīng)是通過資源集聚欧美一区性爱视频，占領(lǐng)細分市場，保證技術(shù)和市場的良性互動国产噜噜观看，然后以此為契機天天色,天天干,天天日，通過技術(shù)積累實現(xiàn)由局部突破向全面崛起轉(zhuǎn)化。

Secondly, the gun barrel temperature field is solved by two-dimensional and one-dimensional heat conduction model with finite element method and finite difference scheme respectively.

其次通過對身管二維軸對稱傳熱模型和一維徑向傳熱模型的數(shù)值計算国产三级片一区,二区在线，研究了身管固壁的傳熱問題超碰免费在线站长工具。二維軸對稱傳熱計算采用了有限單元法，一維徑向傳熱計算采用了有限差分法只久久久久久久久久久。

Then import the file to the finite element heat dynamic analysis software that we developed, simulation to heat dynamic behavior and analysis the deformation of thermal conduction.

然后將檔案輸入我們開發(fā)的有限元素熱動態(tài)分析軟體国产特黄特色视频网站，進行熱傳遞之溫度動態(tài)模擬與變形分析欧美中韩一区二区。

The other solves the non-steady heat conduction equation by finite difference method.

發(fā)展了兩個太陽能固體吸收式制冰機的動態(tài)模擬程序，差別在于對反應(yīng)器內(nèi)的傳熱過程采用了不同的計算方法午夜在线色呦呦，其一采用反應(yīng)前鋒假設(shè)人妻人操人人操人人插，其二采用有限差分方法求解非穩(wěn)態(tài)的熱傳導(dǎo)方程。