speed of diffusion 中文意思是什麼
speed of diffusion
解釋
熱擴散速度-
In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa
本文設計出三種樣品預構件，研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程，弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別，以證實特殊的電場和磁場是否對原子的擴散有推動作用，揭示脈沖大電流加熱條件下原子的擴散過程，探索脈沖大電流熱加工技術快速高效的原因。 -
The diffusion model and numerical simulation model for chaff clouds are modeled on the assumption that the speed of air where chaff locates is a winner random process and the mass of chaff is zero so it can trace the atmosphere speed very well
摘要假定箔條所在位置處大氣運動速度是一個維納隨機過程，同時在忽略箔條的質量時箔條的運動完全反應當地大氣的運動，在此基礎上建立箔條雲團的擴散模型及數值模擬模型。 -
To further strengthen domestic and international industrial bearings and technological exchanges and cooperation, and speed up new products, new technology diffusion, bearing promote industrial development by the state department in charge of approval from beijing, china, organized by the society of mechanical engineering, jia century, the exhibition industry contracted out " 2006 beijing international bearing industry exhibition " in 2006 august 30 - 9 1 in the china international exhibition center
為了進一步加強國內外軸承工業的技術交流與合作，加快新產品新技術推廣，推動軸承工業的發展，經國家主管部門批準，由中國北京機械工程學會主辦北京世紀佳業展覽有限公司承辦的「 2006中國北京國際軸承工業展覽會」於2006年8月30日9月1日在北京中國國際展覽中心舉辦。 -
First super - low specific - speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low ; secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. therefore the h ~ q characteristic curve is often hump - shaped, and at the low - capacity operating condition the instability often occurs ; thirdly the centrifugal pump at high - capacity operating condition is easy to overload because the n ~ q curve appears a rising trend
首先由於它的揚程較高、流量較小，所以它的流道狹長，圓盤摩擦損失較大，效率相對較低；其次由於它的流道擴散較嚴重，易在葉片進口產生迴流和在出口產生脫流，揚程流量特性曲線易出現駝峰，在小流量工況下易產生不穩定現象；第三，由於其功率流量曲線呈現上升趨勢，在大流量區運行時電機易過載。 -
It is characterized as the lack of vitality to the agricultural technology innovation, the insufficiency between the effective supply and the effective demand of agricultural technology, the low transfer rate of the scientific and technological achievements, the difficulties in the new technology diffusion, the backwardness of the information network development in agriculture, and the slow speed of the agricultural technology progress
脫胎于計劃經濟下的中國傳統的農業技術創新機制，已不適應當今社會市場經濟發展要求，其突出表現：農業技術創新乏力，農業技術有效供給與有效需求明顯不足，科技成果轉化率低，新技術擴散困難，農業信息網路落後，農業技術進步緩慢等。 -
Based on the dc diffusion model, we build a duplex diffusion layer model which is composed of inner pulse diffusion layer and outer stable diffusion layer. in inner pulse diffusion layer, the concentration of ions fluctuates with frequency of pulse current ; in outer stable diffusion layer, the transport speed of ions is almost stable all the time, the main purpose is to transport the ions from the mass to the pulse diffusion layer
在直流電沉積的擴散理論基礎上，建立了脈沖電沉積的雙擴散層模型，靠近電極為脈沖擴散層，擴散層內金屬離子的濃度隨脈沖電流的頻率而波動;脈沖擴散層外麵包圍著一層穩態擴散層，其中離子的擴散速度在整個過程中基本是穩定的，作用是將主體溶液中的離子不斷向脈沖擴散層中補充。 -
Abstract aiming at the defects of diffusion function with lower diffusing speed and needing multiple round iteration to resist differential attack in the image encryption algorithm based on chaotic block cipher, a new chaotic image encryption algorithm based on output ? cryptograph mixed feedback was proposed
摘要針對現有基於混沌分組密碼的圖像加密演算法中，擴散函數擴散速度慢、需要多輪迭代才能抵抗差分攻擊的缺點，提出了一種新的基於密文和輸出混合反饋的混沌圖像加密演算法。 -
The zis smaller in diffusion speed compared to y, which shows a bigger range of daily variation. mean wind, when smaller, has no distinct correspondence to the daily cycle of z and y
從沙塵尺度譜和沙塵的沉降末速分析，出現沙塵暴，尤其是強沙塵暴時，系統中的上升氣流可達每秒幾米的量級，有時甚至更高。 -
Standard test method for measured speed of oil diffusion pumps
測量油擴散泵速度的試驗方法 -
Power vdmos ( vertical double - diffusion mosfet ) is the most favorable device available for high speed, medium power applications because of its characteristics such as high input impedance, high power gain, easy to drive and good thermal stability
功率vdmos （垂直雙擴散mosfet ）以其高輸入阻抗、高功率增益、驅動電路簡單和熱穩定性好等優點，在高速度和中等功率場合得到了廣泛的應用。 -
Furthermore, author designs some tests, such as diffusion speed test of stress in soil under static load and sound wave test. by these tests, author verified that sound wave test can measure the stress in soil. comparing those aforementioned tests, we can know that their conclusions is coherent, so those conclusions also verify the feasibility of measuring stress in soil by sound wave tests
經理論以及試驗結果分析，靜荷載作用下土中應力傳遞速度試驗、聲波試驗以土中應力分佈傳遞規律的試驗及測試技術研究及前述室內模擬試驗，在土體含水量、密度變化情況下，三者所獲規律是一致的，初步證實聲波測試技術作為土中應力測試手段的可行性，為無損傷、不擾動測試土中應力做了探索性工作。 -
It can improve the degradation of digital chaotic and diffusing speed of diffusion function through perturbating initial value of chaotic system with ciphertext
該演算法利用密文擾動混沌系統的初始值，既改善了數字混沌的退化，又能使擴散函數具有非常快的擴散速度。 -
The requirements for image processing in auto - stereo - display, high image resolution and fast procedure speed, were deduced from such mechanism. the interpolation based on the refinement of shape - profiles was adopted for image magnifications as fast as possible, after analysing main advanced methods of image magnifications. secondly, a new algorithm of smoothness shape - profiles was studied by analogy the thermal diffusion
總結了當前已有的各類主要插值放大演算法，根據自動立體鏡三維顯示需要兼顧快速性和清晰度的要求，選擇了基於圖像輪廓邊緣處理類型的放大演算法作為本研究中放大圖像的技術思路，以保持對圖像視覺效果至關重要的圖像輪廓信息。 -
Therefore we have to make sure the quality of new stock, be strict about stock mechanism of import and export, find the strategic orientation of stock, and especially control diffusion speed strictly
為此我們必須確保新股的質量，嚴格股市的進出機制，找準股市的戰略定位，尤其要嚴格控制擴容的速度。
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