凹值 的英文怎麼說

中文拼音 [āozhí]
凹值 英文
valley
  • : 凹名詞(凹陷的地方, 用於地名) low-lying area; depression (used in place names)
  1. Concavity - convexity of functions near extreme points

    實解析函數在極點附近的凸性
  2. One wheel notch, a detent, is defined by the windows constant wheel delta, which is 120

    Windows常數wheel _ delta定義了一個鼠標輪口,即一個制動器,為120 。
  3. Discussion of overlaped ct image in cerebral function of fossa cranii posterior

    圖像重疊技術對后顱腦功能變化價的探討
  4. Under general geological study of exploratory development of coalbed gas and underground gasification of coal bed in eastern depression of liaohe basin, authors apply the basic principle of coal geology and the data of vitrinite reflectance and technical analysis of coal to ascertain that coal classification are dominantely the lignite, long - flame coal and gas coal of coal - bearing upper section of third member of shahejie formation, and then dissertate the variational regularity between coal rank and buried depth in vertical and otherness of vertical limit of coal rank in different coal - rich regions

    摘要運用煤田地質學基本理論和煤的鏡質組反射率及工業分析等有關數據,確定了遼河盆地東部陷古近系沙三段含煤亞段的煤種主要為褐煤、長焰煤和氣煤;進而闡述了該煤段垂向上煤級與埋深的變化規律性、不同賦煤區各煤級垂向界限的差異性。
  5. 4. the principle of the experiment including the isdg method is introduced. and the effect of shape and distance of the indention on strain measurement is analyzed

    4 )介紹試驗設備的組成及試驗原理,通過理論推導和有限元數模擬分析了拉伸試樣的痕標記對應變測量的影響,對isdg ( interferencestrain displacementgauge )方法進行了深入的研究。
  6. The paper concludes that the changing rate of ndvi of rain forest in tropic is the smallest, the changing curve is smooth, while the changing rate of ndvi of the deciduous broad leaf forest in warm - temperate zone is the largest the change of ndvi is the most conspicuous in winter and spring ( especially in april ) while is not conspicuous in summer and autumn by analyzing the change of ndvi along latitude using the ndvi value of different vegetation types along the same longitude. the vegetation index from warm temperate zone to semitropical zone has obvious transition, while other areas have no distinct change by analyzing the change of ndvi from temperate zone to semitropical zone to tropical zone using ndvi averagejn the same time it is concluded that the sink value in the beginning of the year 1995 is from the influence of the monsoon in east of china by analyzing the ndvi curve of several typical needle leaf forests. the relation between ndvi value and temperature is conspicuous while the relation of precipitation is less or not by analyzing the relation between ndvi and temperature and precipitation finally it can get the conclusion that the change of river area is the smallest, the change of sienna area is the greatest by analyzing two phases of tm data in 1987 and 1997 with rs technic

    利用從同一經度的不同森林類型ndvi分析,沿緯度方向ndvi變化可得出, ndvi在冬春季變化最明顯(尤其是在4月份最大) ,而在夏季和秋季變化不明顯。利用ndvi均進行分析,從暖溫帶到亞熱帶到熱帶的變化情況發現,從暖溫帶到亞熱帶ndvi指數形成明顯的階躍,而其它區域沒有太大的變化,同時對幾種典型的針葉林曲線分析可知其年初的凹值源自於我國東部季風的影響。利用ndvi數據分析其與月均溫度與降水的相關性得出與溫度相關性較為顯著,而與降水相關性不顯著或無相關性。
  7. This paper referred to the massive domestic and foreign technical material, elaborated in the sheet forming value simulation theory essential technology in detail, points out when analysis sheet forming question should use the big distortion ball plasticity fem and introduce the application characteristic and the function summarizes of the sheet forming simulation software dynaform. secondly, analyzed the cover forming characteristic, simultaneously introduced the influence cover forming factor in detail : such as ramming direction, the craft addendum surface and the material pressing surface, the radius of convex - concave mold, draw bead, pressure strength, blank size and craft margin and so on. and simulates many typical automobiles cover panel with software : such lateral board, back taillight pedestal and storage cover

    其次,分析了覆蓋件成形的特點和要求,同時詳細介紹了影響覆蓋件成形的因素如沖壓方向、工藝補充面和壓料面、凸模圓角、拉延筋、壓邊力、坯料尺寸和工藝切口等,並用數模擬軟體對多個典型的汽車覆蓋件汽車后側圍板、后燈座以及轎車后備箱蓋的沖壓成形情況進行模擬,用模擬結果優化拉延工藝方案,比較了內覆蓋件和外覆蓋件在成形特點和要求的一些異同點,以及常見的起皺、拉裂和回彈、成形不足等缺陷的產生機理和相應對策,重點介紹工藝補充面和壓料面的設計及優化方法,因為拉延是沖壓工藝的關鍵工序,而工藝補充面和壓料面的設計是拉延工序的關鍵,對消除缺陷至關重要。
  8. In unfed adults, the acini were small ( 34. 79um ) and their surface had many folds. on the d2 after attachment, the gland and its acini increased sharply and reached its peak ( 97. slum ), which was about 2. 8 times of unfed female. during this period, the surface of acini was relatively smooth

    饑餓雌蟲唾液腺腺泡小( 34 . 79 m ) ,表面有人量的突起和陷;吸血后2d腺體和腺泡明顯增大:交配期腺泡達到最大( 97 . 81 m ) ,約為饑餓期的2 . 8倍,腺泡表面明顯變得光滑;飽血后腺泡逐漸萎縮,發生自溶現象,飽血后4d唾液腺明顯退化。
  9. Both two methods require a good binary image, if there exist concave, the aggregated objects will be segmented and recognized correctly and the error is lower, otherwise, it may give err result. considering the edge information will give robust segmentation, but the information may contain noise when the object is strongly non - uniformity and the speed decreases

    該演算法對圖像的二化效果要求較高,當物體間的縫隙在二化后能部分或全部判定為背景,即粘連的物體在二化后能有明顯的陷時,識別率很高,誤差幾乎可以為零。
  10. In order to calculate difficult transportation cost between plants and distribution centers in the fitness value function, flow prediction algorithm was presented to find an minimum - cost flow patterns on an network composed of plants, consolidation centers and distribution centers with concave transportation costs and to obtain the appropriate fitness value

    為了解決適應度函數中的工廠與分銷中心之間的運輸成本計算困難的問題,提出了流預測演算法,用於確定產品在工廠、集貨中心和分銷中心構成的費用流網路中的最優運輸路徑,進而獲得適應度函數
  11. Based on the hydrodynamic energy transport model, the influence of variation of negative junction depth caused by concave depth on the characteristics of deep - sub - micron pmosfet has been studied. the results are explained by the interior physical mechanism and compared with that caused by the source / drain depth. research results indicate that with the increase of negative junction depth ( due to the increase of groove depth ), the threshold voltage increases, the sub - threshold characteristics and the drain current driving capability degrade, and the hot carrier immunity becomes better in deep - sub - micron pmosfet. the short - channel - effect suppression and hot - carrier - effect immunity are better, while the degradation of drain current driving ability is smaller than those with the increase of depth of negative junction caused by source / drain junction shallow. so the variation of concave depth is of great advantage to improve the characteristics of grooved - gate mosfet

    基於能量輸運模型對由槽深度改變引起的負結深的變化對深亞微米槽柵pmosfet性能的影響進行了分析,對所得結果從器件內部物理機制上進行了討論,最後與由漏源結深變化導致的負結深的改變對器件特性的影響進行了對比.研究結果表明隨著負結深(槽深度)的增大,槽柵器件的閾電壓升高,亞閾斜率退化,漏極驅動能力減弱,器件短溝道效應的抑制更為有效,抗熱載流子性能的提高較大,且器件的漏極驅動能力的退化要比改變結深小.因此,改變槽深加大負結深更有利於器件性能的提高
  12. In order to effectively determine the position and distribution of porosities in laser welding sampes with complex structure, a preliminary research was proceeded on the distribtion features of porosities and a formula which can calculate the buried depth of porosities was deduced based on the line profile distribution curve of the flaw position

    為了確定復雜結構激光焊件焊縫中氣孔缺陷的位置和分佈,對氣孔缺陷的分佈特徵進行了研究,推導出氣孔缺陷埋藏深度的計算公式,設計了峰異常缺陷和斜型異常缺陷投影距離自動提取演算法,確定了缺陷在鈦合金激光焊件中的分佈特徵,並通過模擬試件的破壞性試驗對該公式進行了驗證。
  13. The principle of the method is illuminated by the numerical simulation of the scattering of caustic region in a two - dimensional concave antenna

    本文通過對二維面天線焦散區散射場的數模擬詳細介紹了這一理論的基本思路。
  14. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    ( 2 )利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究,通過分析正弦荷載作用下的試驗資料,驗證了粉土的孔隙水壓力增長模式的合理性;從微分方程推導了基於土體振動臺模型試驗的相似律,並從模型實體、孔壓時程曲線和相似律等方面做出了分析,得出了如下結論:在小型振動臺試驗中,模型箱中的粉土都發生了液化,液化的時刻和輸入加速度幅有關,而對頻率的變化不太敏感;粉土在相當於8 9度地震烈度的加速度幅作用下可能產生嚴重的液化;孔壓的增長曲線形狀與施加的荷載有關:當施加荷載為由小到大的形式時,曲線形狀為上的曲線;當施加荷載為等幅的正弦荷載或荷載幅由大到小時,曲線形狀為上凸的曲線,且逐漸趨于穩定。
  15. Members of the public are advised to be cautious when purchasing us federal reserve note that the genuine one is printed by intaglio process and its denomination will not exceed us $ 1 million

    警方呼籲市民購買此類儲備券時應格外小心,並指出美國聯邦儲備券是以版印刷,而每張面均不會超過一百萬美元。
  16. A police spokesman urged the public to be careful when purchasing federal reserve notes " the denomination of each us federal reserve note does not exceed us $ 1 million and they are printed by intaglio process, " he added

    警方發言人呼籲市民購買此類儲備券時應格外小心,他表示:每張美國聯邦儲備券的面不會超過一百萬美元,並以版印刷。
  17. In this paper, through the idea of domain decomposition method and the theory of natural boundary reduction, we study overlapping domain decomposition method and non - overlapping domain decomposition method for elliptic boundary value problems in an infinite domain

    本文藉助區域分解思想並基於自然邊界歸化理論,研究無窮角區域橢圓邊問題的重疊型和非重疊型區域分解演算法。
  18. The fractal dimensions of elevation isolines in 6 studying sections from 3 different types of geomorphological zones, including high mountain, low - moderate mountain and catchment basin, are computed by using successive coarsening method. the results show that all the studied isolines are statistical fractals, and the fractal dimensions take on different characters for different geomorphological types and scale ranges

    在0 . 1 - 10km標度范圍內,等高線分維總體表現為最新隆起區(中低山區) >強烈隆起區(高山區)沉積陷區(盆地區) ;在5 - 200km標度范圍內則表現出強烈隆起區最新隆起區沉積陷區。
  19. Analyzed 8 kinds of regulated plugs. calculating and analyzing results showed : ( 1 ) the most sensitive parts of all the plugs were near the bottom of axes of the notch, which was easily into auxiliary when under high pressure and caused unbalance or break of plugs. ( 2 ) comparison of 8 kinds of plugs proved that the design of plug of primer 9 second was optimization because it was in plastic under increase and decrease in pressure

    對國內8種制式閉氣塞:底- 9乙式底火閉氣塞、海130底火閉氣塞、海76炮彈底火閉氣塞、底- 5底火閉氣塞、底- 4底火閉氣塞、底- 8底火閉氣塞、底- 25底火閉氣塞及底- 125底火閉氣塞分別進行了有限元數分析,計算結果表明: ( 1 )閉氣塞槽底部靠軸心處為其機械強度最為敏感區域,在承受高壓過程中易破裂。
  20. The relation between steel dent data anddetonation pressure of explosive sample

    炸藥的輸出鋼凹值與爆壓的關系研究
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