空洞率 的英文怎麼說
中文拼音 [kōngdònglǜ]
空洞率
英文
void content-
High strain rate superplasticity and cavity behavior in mb2 sic magnesium matrix composites
復合材料高應變速率超塑性及空洞行為Cavity behavior of sic mb2 magnesium matrix composites during high strain rate superplasticity deformation
2復合材料高應變速率超塑性變形的空洞行為A reliability experiment of thermal aging was carried out for the two types of joints, scanning electron microscopy, energy dispersive x - ray spectrometer and micro x - ray diffractomer were adopted to investigate the interfacial evolution behavior of joints, and kinetics model of imc formation was established. the results show that imc growth follows the parabolic law as a function of aging time at certain aging temperature, imc growth is more sensitive to the aging temperature than the aging time, the activation energy of cu - al imc growth is 97. 1kj / mol and the major forming cu - al imc are cual2 and cu9al4, the activation energy of au - al imc growth is 40. 1kj / mol and the main au - al imc are au4al and au5al2, with au2al and aual at the interfacial periphery of joints, the rate of cu - al imc growth is about 1000 times slower than that of au - al imc, and kirkendall voids and cracks are easily appeared during thermal aging in gold ball bonds while voids and cracks are absent in copper ball bonds even after aging at 200 for 2900 hours and 250 for 169 hours
研究結果表明:金屬間化合物厚度與老化時間的關系符合拋物線法則，金屬間化合物的生長對老化溫度比老化時間更加敏感; cu - al金屬間化合物生長的激活能為97 . 1kj / mol ，老化后金屬間化合物呈層狀分佈，主要相為cual2和cu9al4 ; au - al金屬間化合物生長的激活能為40 . 1kj / mol ，主要相為au4al和au5al2 ，同時在界面周邊區域生成了au2al和aual ;老化過程中cu - al金屬間化合物生長速率比au - al金屬間化合物生長速率小103數量級;金絲球鍵合點200老化96小時出現了明顯的kirkendall空洞和裂紋，但銅絲球鍵合點200老化2900小時和250老化169小時都沒有形成空洞和裂紋。Based on the field investigation of relationship between peasant family economy and flood disaster in dongting lake area, hunan province and the socioeconomic statistics from administrative departments and insurance companies, an analysis of family and land economy behavior shows that the fight of family against the flood is mainly constrained by its economic ability. on the one hand, land sustains the pressure from increasing family income, and on the other hand, it sustains the pressure from providing water with some space. therefore, under the condition of providing water with space to full, increasing the economic output rate of per capita land, then increasing the family economic income is of significance to solving the problem of peasant family economy and flood disaster
通過對湖南省洞庭湖區家戶經濟與洪澇災害關系展開的野外調查，和從行政門部與保險公司獲得的有關社會經濟統計資料.案例資料，進行了農戶經濟行為與土地經濟行為的分析.結果表明.家戶對洪澇災害的抵禦能力主要受其經濟能力的制約，土地一方面受到來自增加家戶收入的壓力，另一方面受到來自必須給水以一定空間的壓力，所以在盡量滿足給水以一定空間的基礎上，努力提高單位土地的產出率，從而提高家戶的經濟收入，對這一湖區的農民家庭經濟與洪澇災害問題的解決具有重要意義By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building
與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。Comment : tuberculosis is transmitted most efficiently by an infected indiidual with a pulmonary caity and a cough
評論：結核病通過患肺空洞型結核的感染患者及咳嗽進行傳播的效率最高。A breakdown model of dielectrics, which exists some blemish inside or on the surface, such as hole, impurity and heave at which breakdown probability is larger than that at other points, was established
建立了含有缺陷點的絕緣介質擊穿模型，指出電纜絕緣層內部及表面存在空洞、夾雜物和隆凸不平是缺陷產生的內在因素，缺陷點處的擊穿概率較大。Abstract : based on the rigid visco - plastic fem technique, this paper numerically simulate the superplastic bulging process of void - sensitive materials using pressure controlling strategy of maintaining maximum effective strain rate constant and void damage evolution model of superplastic forming
文摘:基於剛粘塑性有限元技術採用最大應變速率恆定的壓力控制策略和超塑性成形空洞損傷演變模型對空洞敏感材料的超塑性脹形過程進行了數值模擬。Not only the fractures can connect the separated cavity to grow the effective reservoir space and improve the permeability of matrix, but also is the main path of petroleum migration
裂縫不僅可以使孤立的孔洞得以連通，發育成有效的儲集空間，大大提高基質滲透率，更是油氣的主要運移通道。The paper applies ansys finite program to analyse coalstore - shale fired perforated brick ' s hole shape, and finds the factors that influence the strength of bricks. the author attempts to explore from the basic principle of heat transfer the effect of the changes of hole arrangements and hole ratios of the perforated ( hollow ) brick in certain dimensions on the thermal transition of the brick, and to improve the thermal insulation property of the brick on this basis
通過ansys有限元應用軟體對不同孔型、不同孔排列的多孔磚進行力學性能分析，找出影響多孔磚力學性能的因素；探討了在一定尺寸條件下，多孔磚、空心磚的孔洞排列與孔洞率的變化對磚體傳熱性能的影響，以此改善磚體的抗壓強度和隔熱保溫性能。The simulation of hemisphere bulging shows that the thin rate decreases about 10 % with direct - reverse process. cavity rate is decreased evidently in the bulging if back pressure is provided. experiment shows that proper back pressure can eliminate big cavity on the condition that strain is not very high
通過增加脹形背壓，降低成形件的空洞率，結果顯示背壓對于空洞率的降低有比較明顯的作用，適當的背壓甚至可以基本消除應變不是特別大時的空洞。The domestic artificial map cracking ( cavity ) core is first presented, which is accordant with prerequisites similar to the real permeability and the percolation spatial configuration of the reservoir, and successfully applied to the long - core test under the conditions of high pressure, high temperature, high salinity and high viscosity available
在國內首次人工製造出了同時符合油藏儲滲層滲流空間形態要求和滲透率要求的網狀裂縫（洞）巖心，並在四高，即壓力高、溫度高、礦化度高、粘度高的模擬油藏實際條件下成功應用人工製造網狀縫巖心完成了輪古地區長巖心驅替實驗。With the development of global economy and intensifying competition in aviation industry, which have caused transform in wind tunnel experiment field. new tide of wind tunnel experiment comes out. to be on top in this area, the occident has invested a mint of capital to update and rebuild their facility of wind tunnel, to adjust working pattern, to improve efficiency and to develop new experimental technology
隨著經濟全球化的發展，世界航空工業的競爭加劇，導致了風洞試驗領域的變革，風洞試驗業也呈現出新的發展趨勢，為了贏得在新世紀航空領域的領先地位，歐、美都投入巨資對風洞設備更新改造，調整運行模式，提高效率，發展新的試驗技術。In any case, the most important task is to define the role of the depositary and the independent directors regardless which structure has been chosen. at least in the context of open - end funds, it is possible that the regulatory authority could conclude after sufficient experience that a contractual structure, utilizing a strong depositary without independent directors, would be sufficient to safeguard the interests of investors
如果說emh回答了已知的信息對獲利沒有價值的結論，那麼capm則說明市場上的超額回報率是由於承擔更大的風險才形成的結論，因而在一定程度上capm補充了emh的理論空白和可能的漏洞。For the larger area contraction ratio, the flow condition becomes more complicated, the discharge of the tunnel and the change of the negative pressure in the cavity pocket will be reduced, but the cavity diameter of the level rotary cavity flow and the dissipation ratio of the system will be increased
面積收縮率較大時，流態變化復雜，泄流量和環流空腔內的負壓的變化減小，但空腔環流的空腔直徑和泄洪洞的消能率增大。Surface, the easliy wear and tear parts use grinding - resistant material, extruding part use variable cylinder diamethe extruder with compact structuures, transmission gear with hard gear ter detachable pitch, great extruding p0ressure, high vacuum degree, low loading capacity ( electricity - saving more than 25 % than the same product ). it reaches advanced domestic level andcan replace imported items. it is suitable to produce hollow brick with high hole ratio, coal waste rock hollow bricks, shale hollow bricks, prower coal ash hollow - bricks. the extruder won the scienttific and technological progress pride of the lst building material scientific and techniques achievement exhibition in jiangsu province and the golden prize of the mational brick and tile energy - saving lxln achievement
該機結構緊湊、傳動齒輪均系硬齒面，易損件採用耐磨材料、擠出部分採用變缸徑、變螺距、擠出壓力大、真空度高，裝機容量低（比同類產品節電25 % ） ，性能優于進口同類設備，適用生產高孔洞率空心砌塊、煤矸石、頁巖、精煤灰空心磚及各類高摻入量粉煤灰磚和低塑性原料磚，該機在江蘇省首屆建材科技成果展覽會科技進步獎； 94全國磚瓦節能四新成果展覽會金獎，西安國際博覽會金獎。This thesis restricts itself on the topic of image - based rending techniques. some efficient ibr algorithms have been proposed to render novel views of complex virtual environment interactively, or in real time
Ibr技術是一個比較新的課題，研究起步較晚，仍然有許多問題如空洞、多幅圖象合成的效率等需要解決。分享友人