方射因數 的英文怎麼說
中文拼音 [fāngshèyīnshǔ]
方射因數
英文
transmission factor-
The remote sensing quantitative retrieval model for the appraisable factors of desertification monitoring are founded. in naiman country, inner mongolia, the experimental area, the hyperspectral imaging spectrometer data in plant growth seasons are collected by state - produced airborne hyperspectral imaging spectrometer omis - i, and the etm + image is also obtained. meanwhile, ground investigation and measurement are made, which include the measurement on reflection feature of different kinds of geo - targets and the ground investigation data necessary for spectral rebuilding and retrieval models of the appraisable factors of desertification monitoring
本研究以內蒙古奈曼旗作為研究試驗區，採用我國自行研製的機載高光譜成像光譜儀omis - ，在植被生長季節取得高光譜解析度成像光譜儀數據和etm ~ +圖像，並進行了同步的地面調查及量測，包括不同類型地物反射特性量測和光譜重建以及荒漠化監測評價因子定量反演模型所必需的地面樣方調查數據。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。Before using phase - only algorithm to achieve nulling, estimations of the number of interferential sources and the doa of interferential signals are needed. so, the spatial spectrum estimation basd on the maximum likelihood method ( capon method ) and music algorithm used for detecting the number of interferential sources and the doa of interferential signals are discussed in the second chapter
在採用phase - only演算法進行波束置零之前，需要估計干擾源的方向和個數，因此本文還在第二章介紹了發射數字波束形成中用於測定干擾源個數和方向的空間譜估計法? capon演算法和music演算法的測向原理，並分析了它們的性能和優缺點。Numeral results of dsif at radial crack tips of ellipse and square cavities are provided. then the influences of different shape cavities upon the dsif at the crack of their edges are discussed. 5. scattering of sh - wave by a radial interface crack at the edge of arbitrary - shape - cavity is studied
給出了橢圓孔和方孔孔邊徑向界面裂紋尖端動應力強度因子的數值結果，討論了在不同形狀孔、不同入射波數、不同入射角和不同材料常數組合情況下孔邊徑向界面裂紋尖端動應力強度因子變化的規律。For the regular curves, we find two killing fields for the purpose of integrating the structural equations of the p - elastic curves and express the p - elastica by quadratures in a system of cylindrical coordinates. for the star - like affine curves, we solve the euler - lagrange equation by quadratures and reduced the higher order structure equation to a first order linear system by using killing field and the classification of linear lie algebra sl ( 2, r ), sl ( 3, r ) and sl ( 4, r ). we solve the centroaffine p - elastica completely by quadratures
對于正則曲線的情形，我們發現了兩個用於求解p -彈性曲線的結構方程的killing向量場並用積分將p -彈性曲線在一個柱面坐標系中表示出來，而對仿射星形曲線的情形，我們用積分方法解出了歐拉-拉格朗日方程，利用killing向量場及線性李代數s1 （ 2 ， r ） 、 s1 （ 3 ， r ）和s1 （ 4 ， r ）的分類將高階結構方程降為一階線性方程，因此我們用積分完全解出了中心仿射p -彈性曲線。In the study of directional spectrum and reflection coefficient of multidirectional wave, firstly the wave elevation trains overlapped by the incident wave and the reflected wave of multidirectional wave are simulated in the method of a frequency corresponding to a direction. then the composed wave trains are analyzed respectively by the mbdm and the mmlm. during the numerical study, the input factors include the various wave parameters, the different measuring wave system and the various reflect characteristic
在多向不規則波入射波方向譜和反射系數的分析研究中，利用方向頻率對應法模擬了多向不規則波入射波與反射波疊加的波面序列，將此合成波列分別應用mbdm和mmlm進行分析，通過輸入各種波浪參量、不同波浪測量系統和各種反射特性等因子，檢驗了mbdm和mmlm方法的適用條件，對兩種分析方法的性能進行了比較分析。Test method for diffuse light transmission factor of reinforced plastic panels 08. 01, 08. 04
增強塑料板的散射光傳遞因數測試方法Theoretical calculations of einstein spontaneous emission coefficients for hbr molecule
分子愛因斯坦自發輻射系數的一種理論計算方法The basic principle, main properties, typical parameters, technical characteristics and general situation of klystron are introduced. the electron beam prebunching in the modulated cavity and shift tube of relativistic klystron amplifer ( rka ) is studied analytically, a self - consistent equation of radiation generated by the prebunched electron beam in the radiation cavity is derived using the field method of particle ? wave interaction instead of the electrical circuit method, and in terms of it, the gain in the linear regime calculated, a field analysis method is proposed. the theory analysis shows that the characteristic parameters, such as resonance frequency, real part of gap - impedance, external quality fadtor in all kinds of klystron output circuits including single - beam, multi - beam, single - gap, multi - gap, single - beammulti - gap, multi - beam multi - gap klystron output circuit, can be calculated by the field analysis method
本文系統的介紹了速調管的工作原理、主要特點、發展概況、主要性能指標和技術特點，解析的研究了電子束在相對論速調管放大器的調制腔和漂移管中的預群聚;用粒子波互作用的場方法導出了在輻射腔中預群聚電子束產生輻射的自洽方程，同時對線性區的增益進行了計算。理論分析表明，場分析法可用於計算單注單間隙、多注多間隙、單注多間隙和多注多間隙速調管輸出迴路的諧振頻率、間隙阻抗實部和外觀品質因數等特性參數。Calculations of path - differences in different cases have been analysed. calculations of propagation factor in interference region, diffraction region and transition region has been studied. method of determination of transition region is introduced
研究了多路徑和衍射的產生機理，分析了不同地面時路徑差的計算方法，分析了地面反射系數的計算方法以及衍射區和過渡區方向圖傳播因子的計算過程，最後闡述了過渡區的判斷方法。Methods of measurement for equipment used in digital microwave radio transmission systems - measurements on satellite earth stations - figure - of - merit of receiving system
數字微波無線電發射系統使用設備測量方法.衛星地面站測量方法.接收系統質量因數Both sides seemed affected by the wholesale changes with only one shot on target in the opening period. teale ' s low free kick forced a diving side from visiting goalkeeper manuel almunia while freddie ljungberg missed a good chance at the other end, spooning a 12 - metre shot over the crossbar
由於兩隊在陣容上都做了比較大的調整，因此雙方在開賽以後似乎都受到一些影響，在開局階段雙方射中門框的次數僅有一次。Methods of measurement for equipment used in digital microwave radio transmission systems. part 3 : measurements on satellite earth stations. section 7 : figure - of - merit of receiving system
數字微波無線電發射系統使用設備的測量方法.第3部分:衛星地面站的測量.第7節:接收系統的品質因數The range correction method error decreases with the navigation time but the instrument error increases, so the best navigation time should be chosen with both sides considered
射程修正系統的方法誤差隨著導航時間的增加而減小，但由於導航參數誤差有隨著導航時間增加的趨勢，慣導系統工作時間要綜合考慮以上兩方面因素后確定。When i s is a squarefree strongly stable ideal, ic = i. therefore p and / have the same graded betti numbers, projective dimension and regularity. in this paper, we study the relationship of the betti numbers between ic and i. in section 1, the concepts of combinatorial shifting and some related results are given
） s為無平方強穩定理想時i ~ c = i ，因而i ~ c和i的分次betti數、投射維數和正則度相同，本文主要研究i為無平方穩定理想時， i ~ c和i之間分次betti數的關系。And for aggregate spheres, the direction of incident wave, different numbers of spheres in the scattering system are considered as the main part hi studying the light scattering property for such a system
在多球粒子體系的研究中，主要分析了入射場的方向因素、不同粒子組成數目對散射特性的影響。Firstly it constructed a curved face equation, and then did self - learning by adjusting power gene and center and width of the radial basis function with restriction condition on reflect function, finally gained satisfactory curved face equation
該演算法先採用網路構造一個曲面方程，再利用反射函數作為約束條件，通過調整權因子和徑向基函數中心和寬度對網路進行自學習，得到一個滿意的曲面方程。The study intends as a solution to the problem of the optimization designing of the system and the quantification inspection ubiquitously in the x - ray radiographic inspecting system, based on full comprehension and researching of high - energy x - ray digital radiography ( dr ), computerized tomography ( ct ) inspecting system, after analyzing the influence of such factors as the sensitivity of the system, the optimization designing of the radiographic inspecting system and the quantification inspection of the tiny flaw being the abrupt change structure are discussed
本論文針對x射線成像檢測系統中普遍存在的系統優化設計和定量檢測問題，在充分了解和研究高能x ?射線數字成像（ digitalradiography ，簡稱dr ） 、計算機層析成像（ computerizedtomography ，簡稱ct ）檢測系統的基礎上，通過分析影響系統靈敏度的因素，探討了射線成像檢測系統的優化設計和突變結構處微小疵病的定量檢測方法。The paper discusses basic principle, working method and data processing of radon surveying. considering radioactive decay of radon surveying data and many disturbing factors in the actual work, we require analysis, emendation and processing actual data
本文在論述了測氡的基本原理、工作方法及數據處理的基礎上，針對測氡數據放射性衰變的特點和在實際工作中受干擾因素較多等原因，要求對實測數據進行分析、校正與處理。Vco ’ s theory and parameters especially for the basic mechanism of phase noise are studied. the parasitic effects of rf - ic passive devices such as inductors and varactors and the design guidelines for the on - chip spiral inductors are included too. the accumulation - mode varactor, which has a higher quality factor value than the inversion - mode mos varactor, is studied in detail
研究電感和變容管這兩種射頻集成無源器件的寄生效應和射頻mos晶體管的熱噪聲模型，提出集成電感的設計原則和優化方法，詳細研究了一種新型的積累型mos可變電容，這種積累型mos變容管比一般的反型mos變容管有更高的品質因數。分享友人