grain-to-grain stress 中文意思是什麼

grain-to-grain stress 解釋
顆粒之間的應力
  • grain : n 1 穀物，糧食〈英國叫 corn〉; 谷類植物。2 穀粒，籽粒。3 （沙、金、鹽等的）粒，顆粒，晶粒。4 些微...
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  • stress : n 1 壓力，壓迫，緊迫，緊張。2 【語音】重音；重讀；【詩】揚音；語勢，著重點。3 重要（性），重點，...
  1. The zn / o ratio, c - axis orented and stress were improved by annealing, and also redusing the defect of zno flim, increasing the size of grain. but too high annealing temperature was adverse to recrystallization of zno thin film

    退火能改善zno薄膜的鋅氧比、 c軸的擇優取向和應力狀態，減少薄膜中的缺陷，使晶粒長大，但是過高的退火溫度不利於zno薄膜的重結晶，使zno薄膜的質量變差。
  2. However, the die attach layer delaminated after 500 cycles and pcb cracked in the underfilled samples after long time cycling. c - sam is employed to investigate the delamination in the underfilled samples. highly concentrated stress - strain induced by the cte mismatch between the bga component and the pcb board, coarsened grain and two kinds of intermetallic compounds ( nisn / nisns ) which formed during reflow and thermal cycle and their impact on the reliability of solder joints are discussed in this paper

    充膠樣品粗化尤為嚴重； ? ni - sn金屬間化合物包括兩層：其中，靠近ni焊盤的那層比較平整，同時， eds結果分析表明其化學式近似為nisn ，而靠近焊料的那層呈板條狀，化學式近似為nisn _ 3 ，文獻表明其為亞穩相； ?充膠使得樣品最大應力范圍降了接近一個數量級並降低了dnp的作用，同時，器件失效模式變為晶元粘接層分層； ? c - sam結果表明本論文採用的充膠樣品，晶元粘接層分層起始於500周左右，而經過2700周循環的樣品，分層幾乎擴展到整個界面。
  3. The rapid development of economy, rapid process of urbanization and the continuous increase of population bring more and more stress to arable land, the total area of arable land and the average area per head of arable land decrease increasingly. and with the improvement of the people ' s standard of living, requirement to farm produce is higher. population, land and grain will be in strained state

    當前我國經濟的迅速發展、城市化進程的不斷加快，及人口的持續增長對耕地造成的壓力越來越大，耕地總面積及人均耕地面積日益減少，且隨著人民生活水平的提高，對農產品的需求越來越高，人口、土地和糧食三者之間的矛盾日顯突出。
  4. In july 2 01, he visited the chinese university as wei lun visiting professor and delivered a public lecture on the recent developments of chinese hybrid rice. during his visit, he expedited and further materialized the research collaboration with professor samuel sun and professor lam hon - ming of the department of biology at the chinese university, and professor maurice ku of the school of biological sciences at washington state university on an genetic enhancement programme of chinese hybrid rice to further improve the grain yield, quality and stress resistance of the super hybrid rice for the 21st century

    袁教授於今年七月訪問香港中文大學，擔任偉倫訪問教授，主持公開講座介紹中國雜交水稻的最新發展；期間，袁教授與香港中文大學生物系辛世文教授、林漢明教授及美國華盛頓州立大學生命科學學院古森本教授落實共同進行一項大型合作研究計劃，通過引入先進生物科技和破解水稻的遺傳基因密碼，結合傳統育種技術，進一步提升中國雜交水稻的產量、質量及抗逆的能力，推動二十一世紀中國雜交水稻的改良工程。
  5. Ann is a adaptive and non - linear dynamic system made from superposition of many simple components which we call neuron. the question for computation of d _ ( cmax ) belongs to incipient motion of sediment in essence, which is the same question with two different sides, because computation of critical condition ( including critical velocity critical shear stress critical power ) for a grain size under a bed - load condition is equal to computation of a grain size during incipient motion under the bed - load condition and the water flow condition given before. and computation of gross bed - load transport rate has great relationship with standard of incipient motion

    對于d _ （ cmax ）的推求，在本質上還是泥沙的起動問題，因為尋求某種床沙條件下某級泥沙的起動條件（如起動流速、起動切應力、起動功率）和尋求某種水流和床沙條件下的起動粒徑是同一問題的兩個方面而已；而對于推移質總輸沙率推求也和泥沙起動問題中的起動標準選擇緊密相關。
  6. First of all, the structural characteristic and essential of damages were introduced. secondly the efficiency factor of how much the compression stress perpendicular to grain is more than the design value was calculated. thirdly, the main reason that members were made too large deformation and serious damage was pointed out

    但是，目前木塔殘留的整體傾斜、層間側移以及由木材橫紋壓縮引起的豎向壓縮變形等都已達到嚴重影響其安全可靠的程度，所以，木材橫紋局壓增強加固問題亟待解決，以防突變。
  7. In order to improve the properties of materials, one needs to understand the structural relationship between interface and matrix of the materials, such as interface atomic structure, misfit dislocation, chemical bond structure, stress field distribution, composition segregation etc. there are tremendous research works on the grain boundary and interface structures during last century and the sophisticated theory about grain boundary and interface, i. e. coincidence site lattice and 0 - lattice theories had been developed simultaneously

    眾所周知，材料的宏觀性質是由其微觀結構所決定的，因此，為了改善材料的宏觀性能我們有必要弄清楚材料的界面與基體之間的結構關系，如界面的原子結構、失配位錯、化學鍵合、應力場的分佈等等。在上世紀，人們已對晶界和相界面結構進行了大量的研究，同時，相關的理論如「重位點陣」和「 o -點陣」理論也發展成熟。
  8. In the analysis ansys6. 0 is used. two grain fem modals are used to figure out the stress and strain under different load case, including inertial force in radius direction, inertial force in axis direction and colligating the two inertial force. last, the result is compared with the result of analytic method

    在不同的受載條件下，求出藥柱應力場和變形，包括只受徑向慣性力，只受軸向慣性力及徑向軸向慣性力綜合作用下的應力應變分佈並與解析方法相比較，得出了較為合理的結果。
  9. Testing of wood ; determination of ultimate shearing stress parallel to grain

    木材的檢驗.順纖維方向的極限剪切強度的測定
  10. Testing of wood ; determination of ultimate tensile stress parallel to grain

    木材試驗.與木料紋理平行的極限抗拉應力的測定
  11. Wood. tensile parallel to grain. determination of ultimate tensile stress parallel to grain using small clear specimens

    木材.平行於木紋的拉伸.用無瑕疵小試樣做平行於木紋的極限拉伸應力的測定
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