命中率密度 的英文怎麼說
中文拼音 [mìngzhōnglǜmìdù]
命中率密度
英文
hit probability density-
The high - power semiconductor quantum well ( qw ) laser is a kind of luminescence device with superior performance, it has longe - lived, low threshold current density, high efficiency, high luminosity and excellent monochromatic, coherence, directionality, etc. the high - power semiconductor laser is widely applied to the fields, such as military, industrial machining, communication, information processing, medical treatment, etc. the material ' s epitaxy is the foundation of the whole laser ' s fabricating, and it has important influence on the optics and electricity performance about the laser
大功率半導體量子阱激光器是一種性能優越的發光器件，具有壽命長、閾值電流密度低、效率高、亮度高以及良好的單色性、相干性、方向性等特點，廣泛應用於軍事、工業加工、通信及信息處理、醫療保健等領域。材料的外延生長是整個激光器器件製作的基礎，對器件的光學和電學性能有著重要的影響，生長不出優質的材料體系，獲得高性能的器件就無從談起，因此，材料的外延生長便成為了整個半導體激光器製作過程之中的重中之重。This thesis present the systematic studies on firing accuracy and firing accuracy tactical & technical requirement reasoning for gunnery system. the main contents of the paper are as follows. ( 1 ) definitions and probability distribution expressions for error of fire, error of firing data and error of dispersion are given summarily. methods to compose error of initial firing data and error of dispersion are discussed
本文對遠程炮武器系統射擊精度及射擊精度戰術技術指標論證等方面問題進行了深入、系統的分析研究，本文研究工作的主要內容有： （ 1 ）概要地討論了射擊誤差、諸元誤差、散布誤差的定義及其概率分佈，諸元誤差、散布誤差及射擊誤差的合成，分析了射擊精度的各種表示法，闡述了火炮武器系統準確度、密集度和首發命中概率的估算方法。But it also includes two fatal disadvantages : first, at is difficult to be sintered and its density is low, which causes its lower strength ; second, in the temperature range of 1023 - 15 73 k, at can decompose into al2o3 and tio2 easily, which can cause the stress concentrated and raise the heat expansion rate
但是該材料本身存在的兩大致命的缺點，在很大程度上限制了它的廣泛應用： （ 1 ） 、鈦酸鋁難以燒結，燒結體的緻密度低，因而強度不高； （ 2 ） 、在750 1300的溫度范圍內易分解成氧化鋁和二氧化鈦，造成材料內部應力集中，並使材料的熱膨脹率升高。However, the refractive index will increase with the increase of the flow ratio of sifu / nhs, slightly increase with the increase of substrate temperate, and decrease with the increase of rf power. by measuring the passivation results of hydrogen plasma and sinx thin film, we found an evident improvement of minor carrier lifetime in polycrystalline silicon after hydrogen plasma treatment, although it has little to do with the annealing temperature and time. the hydrogen contained in sinx thin film can enhance the carrier mobility of monocrystalline silicon, but after annealing at high temperature the mobility turns down
通過測試氫等離子體鈍化和氮化硅薄膜鈍化的效果，實驗還發現氫等離子體處理對多晶硅材料的少子壽命提高作用比較明顯，但是這種提高作用與處理溫度以浙江大學碩士學位論文王曉泉2003年5月及時間的關系不大；氨化硅薄膜中的氫對單晶硅的載流子遷移率提高有一定作用，但經過高溫處理后這種作用消失；氮化硅薄膜能提高單晶硅和多晶硅的少子壽命，具有表面鈍化和體鈍化的雙重作用；氫等離子體和氮化硅薄膜都能有效地提高單晶和多晶電池的短路電流密度，進而使電池效率有不同程度（絕對轉換效率0Based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed. a stochastic differential equation, which controls strength degradation, is obtained from the model randomized by markov process. by using the theory of stochastic, the distributions of residual strength at any given lifetime and lifetime of any given residual strength are attained. under a few suitable hypotheses, inverse gaussian distribution of fatigue life is derived, and verified by means of experimental data. the result shows that the model and the method are reasonable
在研究疲勞過程中材料強度退化規律的基礎上，建立了一個強度退化模型.對其進行隨機化處理，得到控制強度退化過程的隨機微分方程.在一定假設條件下，獲得了剩餘強度概率密度函數的封閉解，並推導出疲勞壽命的反高斯分佈形式.給出一種考慮損傷狀態對隨機漲落影響的近似處理方法.與試驗數據的比較結果表明，本文的模型和方法是合理的The technology of shambhala is supposed to be highly advanced ; the palace contains special ' skylights ' made of lenses which serve as high - powered telescopes to study extraterrestrial life, and for hundreds of years shambhala ' s inhabitants have been using aircraft and cars that shuttle through a network of underground tunnels
香巴拉的科技工藝據推測高度先進；宮殿開有特殊的『天窗』 ，用於大功率望遠鏡研究外星生命，而數百年來香巴拉的居民一直在使用飛行器和汽車往來穿梭于地下秘密隧道網路中。( 6 ) reasoning of influence on first round hit probability of frag - demolition projectile by accuracy, by density, and by size of target is made, so is reasoning of influence on first round hit probability of carrier projectile by dispersion of sub - projectiles
（ 6 ）分析論證了密集度、準確度、目標尺寸對殺爆彈首發命中概率的影響，分析了子母彈子彈密集度（散布）對子母彈首發命中概率影響。By expounding the characteristic of brand equity, this thesis puts forward the importance of building famous brands to enhance the competitive advantage of domestic gift enterprises. then, the brand strategies of gift enterprises are thoroughly discussed, which include, to increase brand awareness through brand communication campaigns ; to strengthen brand perception quality by keeping high quality during the whole stages of marketing ; to build brand loyalty and increase brand equity by enhancing the faith of existing consumers and attracting more latent consumers ; to create psychological advantage of brands through connecting the brand characteristic with interests of consumers. as for the application of the above strategies, distinct brand positioning and the integrated marketing mix based upon it are crucial
本文從品牌價值的特性來闡述打造強勢品牌對發展我國中高檔禮品的意義，要提升國內中高檔禮品品牌價值，一要提升品牌知名度，對目標消費者開展凸現品牌的活動，讓品牌銘刻在消費者心中，提高產品市場佔有率；二是要強化品牌知覺質量，以持之以恆的優良品質提升品牌形象，提高品牌生命，保持持續的競爭優勢和市場地位；三是要建立品牌忠誠，不斷提高老顧客的忠誠程度，並不斷吸引新顧客，擴大忠誠顧客群體，使品牌資產增值；四是利用品牌聯想，讓品牌的個性與消費者利益密切相關，品牌蘊涵的態度能引起消費者的共鳴，使品牌變得富有生氣，魅力四射，創造品牌的心理優勢。Abstract : based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed. a stochastic differential equation, which controls strength degradation, is obtained from the model randomized by markov process. by using the theory of stochastic, the distributions of residual strength at any given lifetime and lifetime of any given residual strength are attained. under a few suitable hypotheses, inverse gaussian distribution of fatigue life is derived, and verified by means of experimental data. the result shows that the model and the method are reasonable
文摘:在研究疲勞過程中材料強度退化規律的基礎上，建立了一個強度退化模型.對其進行隨機化處理，得到控制強度退化過程的隨機微分方程.在一定假設條件下，獲得了剩餘強度概率密度函數的封閉解，並推導出疲勞壽命的反高斯分佈形式.給出一種考慮損傷狀態對隨機漲落影響的近似處理方法.與試驗數據的比較結果表明，本文的模型和方法是合理的Utilizing their shape memory effect ( sme ), titanium - nickel ( tini ) shape memory alloy ( sma ) films have the potential to become high performance actuating materials for microelectromechanical systems ( mems ) due to their ability to generate large forces with large power - to - volume ratio, high recoverable strain, low power consumption, biocompatible property, and long lifetime
利用其形狀記憶效應原理， tini形狀記憶合金（ sma ）薄膜以其大的輸出力和變位、高的功率密度、良好的生物相容性、低功耗以及長壽命，有望成為微機電系統（ mems ）中高性能的微驅動材料。Methods to calculate effect of bias error and dispersion on first - round hitting probability and on multi - round hit probability are discussed. according to calculating results, influence on first - round hitting probability by accuracy of each factor, by the firing range, by the change of meteorology condition with space - time, and by dispersion are analyzed, so are influence on multi - round hitting probability by bias error & dispersion
討論了射擊開始諸元精度與密集度對首發命中概率與多發命中概率影響的計算方法，並根據計算結果討論了決定射擊開始諸元的各因素精度、射程的變化、氣象條件隨時間與空間的變化對首發命中概率的影響，密集度的變化對首發命中概率的影響，及射擊開始諸元精度與密集度對多發命中概率的影響。分享友人