影象密度 的英文怎麼說

中文拼音 [yǐngxiàngmìdù]
影象密度 英文
image density
  • 影 : Ⅰ名詞1 （物體擋住光線后映出的形象） shadow 2 （鏡中、水面等反映出來的物體形象） reflection; image...
  • 密 : Ⅰ名詞1 （秘密） secret 2 [紡織] （密度） density 3 （姓氏） a surname Ⅱ形容詞1 （距離近; 空隙小）...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 影象 : display
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下：首先針對荒漠化地區的地物特徵，對高光譜數據不同波段的數據質量、波段組合進行了評價，提出了適用於荒漠化監測的基本波段選擇集；初步了解和掌握了研究地區的地物光譜特性及變異規律，進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎；發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象，對于譜形相似而整體反射率的值相差較大的兩類地物，通過引入均值和方差圖像參與分類得到解決；研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段，這些波段與植被生物量和蓋度都有密切的關系，是開展精細植被分類研究和植被定量反演的重要基礎；像元的導數光譜分析可以消除土壤背景的影響，是進行植被生物量和蓋度定量反演的有力工具；建立了荒漠化監測主要評價因子的定量反演模型，並分析了模型的適用性。
  2. We have calculated one - and two - photon absorption cross sections of the lowest excited states of a series of molecules combined with benzene, stilben, thiophene as center attached with amine, diphenylamine, diethylamine as electron - donor and nitryl as electron - acceptor ; the effects of molecular length, n center and electron - donor on two - photon absorption cross sections have been studied and all calculations have been carried out using the density functional theory at an ab initio level. it is found that the molecular length and the one - photon absorption intensity are quite strongly c orrelated factors, and that a corresponding correlation for the two - photon absorption is decreasing. it is also found that a most crucial role for the two - photon absorption is played by the n center

    我們分別以苯、二苯乙烯、噻吩為中心，氨基、二苯氨基和二乙氨基為電子給體，硝基為電子受體組合形成的分子為研究對象，在從頭計算的水平上用密度泛函理論計算了這些分子在低激發態下的單、雙光子吸收強度，重點研究了分子的長度、中心和給體的供電子能力對分子單、雙光子吸收的影響。研究結果表明，分子長度與單光子吸收強度之間有密切關系，而在雙光子吸收中這種關系較弱；中心在雙光子吸收中具有重要的作用；在中心和受體一定的情況下，增加給體的供電子能力，可提高雙光子吸收強度。
  3. Another newly completed one - year intervention study has assessed the effects of calcium - fortified soymilk ( 375 ml ) on bone mass in local adolescent girls aged 14 - 16 years. about 100 girls received supplementation for one year, and another 100 girls as the control. the two groups had similar characteristics and bone mass at the beginning of the study

    另一項為期一年有關加鈣豆奶補充對年青女性（年齡十四至十六歲）的骨骼健康之影響的評估研究將研究對象分為兩組，每組約一百人，兩組女性的特徵和骨質密度相似；其中一組每天獲提供三百七十五毫升的加鈣豆奶補充，另一組則沒有提供任何補充作為對照。
  4. It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation

    針對實際的實驗條件，考慮了一種影響量子干涉的新的因素-四波混頻場，研究了四波混頻場對雙光子探測的-型能級體系的eit的影響，發現四波混頻場能夠導致雙光子探測的eit線型的不對稱，在此基礎上，討論了不同探測場的傳播方式對eit的影響，針對分子中實際存在的包含有微擾能級的不同多能級系統，我們分別採用綴飾態繪景下的密度矩陣方程和weisskopf - wigner近似下的密度矩陣方程詳細地討論了電磁感應透明、自發輻射的干涉相消和相長、雙暗態共振和雙電磁感應透明現象。
  5. Imaging materials - recordable compact disc systems - method for estimating the life expectancy based on the effects of temperature and relative humidity

    成象材料.可記錄的大密度盤系統.根據溫度和相對濕度的影響對期望壽命進行估計的方法
  6. Moreover, the density of urban development, topography and meteorology can all affect the movement and dispersion of air pollutants, and hence their concentration

    此外，該地點發展的密度、地形和該時段的氣象情況，對空氣中污染物的流動、消散，以及濃度也有重要的影響。
  7. The researches of dynamic behavior and liquefaction potential of saturated sands have been further. however, more and more macroscopic liquefaction phenomena and experimental investigations show that different depositional environments lead to different structure of soils, while the influence of structure property of soils on liquefaction resistance is no less than that of density and consolidation stress and so on. ancient alluvial flat deposits, namely recently deposited soils, are easier liquefaction during earthquake

    對於一般飽和砂土的動力特性和液化勢的研究已比較深入，然而，愈益增多的宏觀現象和試驗研究表明，由於土的沉積環境不同而導致土的結構性的差異，而土的結構性對抗液化能力的影響並不亞於密度、固結壓力等因素，古河漫灘堆積物即新近沉積土在地震當中更容易液化。
  8. Liquefaction of saturated sands is a greatly complicated phenomenon. its generation, development and dissipation are restricted by physical property, stresscondition and boundary condition of soils. in addition, there are a lot of influencing factors such as density, structure property ， clay content, degree of saturation, gradation, hydraulic conductivity, initial stress condition and dynamic load character and so on

    砂土液化是一種相當復雜的現象，它的產生、發展和消散主要由土的物理性質、受力狀態和邊界條件所制約，存在許多影響因素，例如土的密度、土的結構性、粘粒含量、飽和度、級配、透水性能以及初始應力狀態和動荷載特徵等。
  9. The paper studied withstand voltage level, influence factors, breakdown process and breakdown mechanism of covered with snow or ice through some theory calculation results, many test data and phenomena. the paper got the conclusions that withstand voltage strength of insulator covered with snow or ice descended largely, and the amount of ice or snow build - up, number of flashover, string length, environment temperature and leak current etc had obvious effects on flashover voltage values of insulators

    通過大量的試驗數據和現象研究冰雪條件下絕緣子的耐壓水平、影響因素及其擊穿機理，如串長的影響、環境溫度、絕緣子形狀及冰的干濕程度、閃絡次數、冠雪量和積冰量的影響、雪的密度、氣壓和濕度的影響等，並對試驗結果與理論分析結果進行了對比，分析其是否一致。
  10. This is the first multidimensional healing that is ascension based with a greater impact than any other that has occurred thus far, as it signifies the return of love into a creation that has fallen into non - love so very long ago

    那是迄今為止的首次多密度療愈，其影響力遠勝至今所發生的任何其它提升? ?因為它象徵愛對造物的回歸，而後者已跌入無愛之中如此之久。
  11. The device structure and physical models of 4h - sic mosfet and mesfet are built and the properties are simulated with the use of medici software. the influence of the temperature and structure parameter on the device ' s properties is summarized indicates that no negative resistance exists in breakdown property and the breakdown voltage is up to 85v and 209v separately. the maximum power density of 4h - sic mesfet is as high as 19. 22w / mm. at the same time, the processes of sic field - effect transistor is studied and the fabrication processes suitable to sic mosfet are developed.

    論文分析建立了4h - sicmosfet和mesfet器件的結構模型和物理模型，採用二維器件模擬軟體medici對4h - sicmosfet和mesfet的輸出特性進行了模擬分析，研究了溫度和結構參數對器件特性的影響，表明兩種器件的擊穿特性均沒有負阻現象，擊穿電壓分別達到85v和209v ，由此得到4h - sicmesfet最大功率密度可達到19 . 22w mm ；同時，研究了sic場效應晶體管的製作工藝，初步得到了一套製造sicmosfet器件的製造工藝流程，研製出了4h - sicmosfet器件。
  12. This article makes a numerical simulation and analysis of the skin effect of the downhole heating cable conductor by using the finite element method, thereby finds out the distribution characteristics of the current density of the cable, and indicates the effect of the frequency of alternating current on the skin depth

    摘要運用有限元法，對交頻井下伴熱電纜導體內部的集膚效應現象進行了數值模擬和分析，比較直觀地得出交頻電纜中電流密度的分佈特性，以及交流電的不同頻率對導體集膚深度的影響。
  13. Aiming at the common problems about the incline of biochip image, the automatic image rotation correction is realized by analyzing the power spectrum density of image projection

    針對生物晶元掃描圖象普遍存在的傾斜問題，利用圖象投影的能量譜密度，實現對傾斜圖象的自動校正。
  14. In the numerical simulation of hypersonic chemical nonequilibrium flows, species density may become negative at the beginning of calculation, chemical stiffness is the main reason that affects the calculation ' s stability and convergence

    摘要高超聲速三維化學非平衡繞流流場的數值模擬中，在計算初期容易發生組元密度出現負值的非物理現象，另外源項的剛性是影響計算穩定性和收斂速度的主要原因。
  15. In their study of how changes in physical activity affects the bone mineral density of a group of 8 18 year olds, it was found that more intense physical activity led to greater increase in bone density, a measure of bone strength

    歲的兒童和青少年為研究對象研究了體育鍛煉對骨密度的影響，結果發現越劇烈的體力活動越能增加骨密度反映骨骼力量的一個指標。
  16. In the whole, the density get large when frozen, and the freezing rate is reverse rational to the degree of the density enlargement. the density get small when frozen, and the freezing rate is reverse rational to th

    對于巖石強度較大，孔隙貫通程度較小的硬巖，凍結速度對其影響最大，凍結后巖石整體上密度呈增大的現象，但增大的程度跟凍結速度成反比。
  17. 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。
  18. For our laboratory is changing toward industrialization, a lot of work on conventional ingaas / gaas / algaas quantum well laser has been done. how the parameters, such as threshold current density, slope efficiency, fwhm and spectrum width, are influenced and how much the influence is, are discussed by the numbers. the effective means how to improve a certain performance parameter are purposed too

    由於本實驗室正處于由試驗研究向產業化邁進的階段，針對常規ingaas / gaas / algaas量子阱激光器做了很多工作，文中系統論述了常規量子阱激光器的各項性能參數?閾值電流密度、斜率效率、遠場發散角、光譜線寬等的影響因素及改進的有效辦法，並針對激光器p ? i線性度不好、遠場發散角出現多瓣的現象，通過理論分析找出原因所在並進行了改進，有效解決了以上問題。
  19. Moreover, the outer particle - free zone almost disappears when pure aluminum matrix is applied. the particle - enriched zone is delaminated with the magnetic field

    另外，基體密度較小時，最外層的無顆粒區幾乎消失，在外加磁場的影響下，顆粒的富集層出現了分層現象。
  20. ( 4 ) the edge enhancement of reconstruction image emergences in the dense particles field in the linear exposure. the phenomenon was analyzed theoretically. and the more dense particle, the easier edge enhancement comes out in the center particles

    （ 4 ）對高密度粒子場在線性段記錄，中心粒子發生邊緣剪切這一現象，用非線性曝光特性理論研究中的物參比影響衍射效率的角度，進行了分析和解釋。
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