penetration velocity 中文意思是什麼
penetration velocity
解釋
浸透速度- penetration : n. 1. 浸透；透過；滲透力。2. 侵入，【軍事】突破；（空戰中）深入敵方的飛行。3. 貫穿；（炮的）貫穿力；（光學機械的）透視力。4. 看破，洞察（力），眼光。
- velocity : n. 1. 迅速；快速。2. 速度，速率。3. 周轉率。
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In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation
針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用 -
The simulation results indicate that impact velocity and impact angle have much influence to penetration acceleration, the higher impact velocity is, the bigger the peak value is ; the smaller the impact angle is, the smoother the acceleration curve is, and the peak value of acceleration appears regularly
模擬結果表明，著速和著角對侵徹過載有很大影響，著速越高，侵徹過載峰值越大；著角越小，過載曲線越平滑，過載峰值的出現也漸顯規律。 -
( 4 ) to determine liquefaction potential in site, several viable approaches are used, and these are ( 1 ) the standard penetration test ( spt ), ( 2 ) measurement of in - situ shear wave velocity ( vs ), and ( 3 ) use of test data and seed & idriss method. considering the non - linear of the soil, we calculate the earthquake response of the soil with the hardin - drnevich model and the finite element method. finally, we estimate the liquefaction capability of the site during earthquake in xuzhou, jiangsu province
中國地展局工程力學研究所碩士學位論文川採用《建築抗震設計規范》 （ gb50on一2001 ）基於標準貫入試驗的判別法、基於場地剪切波速的液化判別方法和seed一idriss簡化法對可液化場地進行了液化判別;考慮土的非線性，採用等效線性化模型，利用有限元方法進行了場地的地震反應分析;並對滬蓉高速鐵路徐州段可液化場地的地震液化性能做出了綜合評價。 -
In the thesis domestic and foreign relation model of standard penetration blow count and shearing velocity, standard penetration blow count and deformation modular, shearing velocity and foundation bearing capacity are analyzed. on base of these analysis a new calculation model that applying rayleigh wave velocity to calculate the stress ratio of pile and soil between piles is established. because of the difference of region and soil character, the new model own three branch model, ie, japan model, wuhan model, xia liaohe mo del, in three different conditions
文章通過分析國內外標準貫入擊數與剪切波速、標準貫入擊數與變形模量、剪切波速與地基土承載力之間的關系模型，並考慮到地區性和土質類別的差異，分別選用日本公路橋梁抗震設計新規程模型（日本模型） 、武漢地區模型、下遼河平原模型三種模型建立了新的樁土應力比計算模型? ?應用瑞雷波速求解樁土應力比之間的計算模型。 -
According to the land forces criteria ( u. s ) for ballistic limit and by using the method that the ballistic limit is equal to the average of two velocities that are partly penetration velocity and completely penetration velocity respectively, the ballistic limit is determined targets penetrated by both conical and flat - ended projectile, the result can be in the table
結果表明，不論是尖頭彈侵徹還是鈍頭彈侵徹，這兩個板厚的船體鋼的彈道極限均未超過常規彈速范圍，一般的槍炮可輕易達到這一范圍，因此從這個意義上說，這兩個板厚的船體鋼的抗侵能力不是很理想。 -
Adopting the deformation harmony theory, the numeric calculation of the curve of load versus settlement is made. the fitting results between the calculated curve of load - settlement and the measured one of piles with different construction process are illustrated. hence, under the condition of few or no static load test data, the performance of bearing capacity of single bored pile in loess may be predicted utilizing indexes of shear wave velocity, static cone penetration test and modification coefficient of depth, so it is remarkable to reduce the blindness of preliminary design of pile
通過室內試驗及原位測試指標進行理論計算與現場實測值的對比，筆者引入了施工工藝修正系數k _ （ c1 ）和k _ （ c2 ）及深度修正系數，使理論計算值與現場實測值具有良好的一致性，進而通過變形協調理論對荷載?沉降曲線進行數值計算，並用不同施工工藝的實例說明了理論計算荷載?沉降曲線與實測荷載?沉降曲線的擬合效果，從而達到可在不做靜載荷試驗或少做靜載荷試驗的情況下通過剪切波速和靜力觸探試驗指標以及施工工藝修正系數等預測黃土地基中鉆孔灌注樁承載性狀，這對于工程初步設計中減少設計的盲目性具有十分重要的現實意義。 -
The penetration mechanism is ductile penetration. the failure models and penetration mechanism vary with the projectile velocity
對于鈍頭彈侵徹，靶板的破損形式和侵徹機理，隨彈速的變化而不同。 -
Under the condition of penetration by flat - ended projectiles, the noses of flat - ended projectiles keep integrity when the velocity is under the normal projectile velocity
當彈速處于亞彈速范圍時，彈頭都保持了完好，此時彈體也視為剛性彈。 -
When the projectile velocity reaches to the normal projectile velocity, the projectiles fracture crushingly, the penetration process is similar to the process penetrated by long rod projectile and can be divided into three processes that is crater process, steady penetration process and plugging process
當彈速達到常規彈速后，彈體發生粉碎性破壞，此時侵徹過程類似於長桿彈侵徹，侵徹過程可分為開坑階段、定常侵徹階段和剪切沖塞階段。 -
Moreover, the secondary wall - impingement distance should be properly reduced in order that the bump play a part in the formation of lean mixture with the increase of environmental pressure or density owing to both the increase of air entrainment, momentum losses and the decrease of the spray tip velocity and penetration
而且當壓力或密度較高時，由於噴霧的空氣卷吸量及動量損失增大，貫穿速度降低及貫穿距減小，為使bump發揮作用，應適當減小二次撞壁距離。 -
Finally, in section three, rayleigh wave exploration method is used in a practical project - northern stone material trade market. the embedded depth of cobble substratum of the whole site, and the regression equation between the test blow count ( n63 ) standard penetration and the surface wave velocity ( vr ) are obtained in the process. a good case study is provided for the practice of the subjected method in this section
第三部分是將瑞雷波法勘探應用於北方石材交易市場的工程實際中，得到整個場地的下臥卵石層的埋藏深度，並給出該場地的標貫值n _ （ 63 . 5 ）與v _ r間的回歸方程，為這一方法的應用提供了很好的工程實例。 -
Simulation analysis of high velocity penetration into concrete target
混凝土靶高速侵徹的模型律 -
Test method for resistance of medical face masks to penetration by synthetic blood horizontal projection of fixed volume at a known velocity
利用合合成液進行醫用面膜耐滲透力
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