象差角 的英文怎麼說
中文拼音 [xiàngchājiǎo]
象差角
英文
angle of aberration-
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。Inspected to bohai rim economic phenomena, we discovered that the effect of agglomeration is strong in this area. follows the agglomeration, the interurban economical development disparity enlarges, just like the phenomena in zhujiang delta and the yangtze river delta
在考察環渤海地區的經濟現象后發現，與長三角和珠三角一樣，該地區的經濟發展突顯出較強的產業集聚效應，伴隨經濟集聚的同時，該地區城市之間的經濟發展差距日益加大。This thesis conducts a detailed analysis of yangda dairying group ( ydg ) from the perspective of marketing situation, competitiveness and designs four sorts of management strategies through " swot ". there are : ( 1 ) to emphasize freshness of our products ; ( 2 ) to regulate or innovate inner organizational structure of the enterprise under the pressure of external competition ; ( 3 ) to introduce green marketing concept by taking advantage of advanced technologies at yangzhou university ; ( 4 ) to avoid competition with rivals on room - temperature dairy products
本文從營銷環境、競爭力的角度對揚大乳業集團作了細致分析，並通過swot分析設計出了四大類經營戰略方案，即採取差別化戰略突出乳品在本地市場的新鮮優勢；利用外部競爭壓力加快推動對內部組織結構的調整和改造；充分發揮高校科技與人才優勢，引進綠色營銷理念，塑造綠色乳品形象，引導綠色乳品消費，避免在簡單的買贈促銷上與競爭對手對抗；採取「有所為有所不為」的策略，避免在常溫產品上與競爭對手進行正面競爭。This thesis brings forward that it is necessary to develop image - building by planning and design of small towns mainly for tourism from the height of region aiming at some phenomena of desultorily constructions, monotone and simple view, buildings with no design and culture happened and happening in some of this type of towns. the author analyses the system, structure, elements of these small towns through the theory of city identity system and " the image of city " with five elements. on the basis of it, the author studies the structure of sights and the embodiment of characteristic sights and advances the emphases of image - building by planning and design at three different aspects : the region or aero as a whole, the town as a whole and the part of the town
論文針對當前重慶市許多旅遊型小城鎮形象建設雜亂無章，城鎮建設面貌單調乏味，建築缺乏設計和文化內涵，城鎮旅遊接待環境條件差，提出有必要站在區域的高度，對這類小城鎮進行形象規劃和設計，運用城市識別系統cis （ cityidentitysystem ）和「城市意象」五要素的原理來分析小城鎮系統結構和要素，以便能夠清楚地認識研究對象，在此基礎上分析旅遊型小城鎮的景觀構成及特色體現，提出了旅遊型小城鎮形象在宏觀、中觀和微觀三個層次上規劃設計的重點，並從理論上分析從實踐中總結出旅遊型小城鎮形象規劃設計的一般原則、方法表達方式及手段等，最後本文運用前面的理論和方法分析了重慶市的兩個典型的旅遊型小城鎮，並進一步得出結論，即旅遊型小城鎮形象建設是一個系統工程，要從規劃和設計兩個角度，結合旅遊的優勢，結合地方，結合自然，既有整體又有重點地對旅遊型小城鎮形象進行塑造，使得旅遊與小城鎮的建設和發展互相融合，協調發展，相得益彰。In this paper, the nacre of hyriopsis cumingii ( lea ) which is one of the main freshwater pearl - forming mollusk in china is studied emphatically, as compared with the nacre of three species of saltwater pearl - forming mollusks, pinctada martensii ( dunker ), pinctada maxima ( jameson, and peteria penguin ( roding ). the basic characteristics of nacreous and prismatic layers are understood by powder x - ray diffraction analysis, trace elements analysis, amino acid composition of protein and differential thermal analysis
本文以我國主要育珠蚌淡水三角帆蚌貝殼珍珠層為重點研究對象，以三種海水育珠貝馬氏珍珠貝、企鵝珍珠貝及大珠母貝貝殼珍珠層為對比研究對象，首先通過粉末x -射線衍射、微量元素分析、蛋白質氨基酸分析及差熱分析對珍珠層及其與之密切共生的稜柱層的基本特徵進行了初步研究。The working paper will analyze and study the farmer labors income inequality in 4 parts in one part, the theories and measuring indexes being applied into this study are reviewed and commented for one thing, and selected indexes and methods applied by chinese outstanding conditions based on this. by dynamical demonstration of the income inequality, it makes known that the income inequality in different rural areas obviously trends to be increasingly widen
本論文主要針對這一現象進行了分析與研究，研究內容主要分為四大部分：第一部分首先對研究所依據的理論體系進行回顧與評析，並對現有的諸多測量指標進行了優劣評價，在此基礎上結合中國現實情況選擇了本研究所使用的評價指標與測量方法，然後據此從省際、東中西以及不同收入水平區域角度，對改革以來中國地區間農民收入的差異進行了動態的實證描述，同時採用theil模型對農民收入的總體差異進行了區域分解。This microscope is provided with achromatic objectives, wide field eyepieces, abbe condenser, adjustable built ? in light source, and coaxial coarse and fine adjustment with focus stop. this microscope with his wide field eyepiece gives a nice and sharp image and is designed in a very modem way, it is designed for clinical experiments and classroom demonstration in medical and hygienic establishments, chemical laboratory, agricultural scientific research nets, research institutes and colleges as well as for the routine examination and research purpose in bioloy, bacteriology, cytology and pharmaceutical chemistry
本顯微鏡採用消色差物鏡、廣角目鏡、阿貝聚光鏡，連續可調的人工光源及帶有限位置的同軸粗微動機構，視場廣闊、成象清晰、設計先進，可供醫療衛生機構、化學試驗室、農業科研系統、研究所及高等院校臨床試驗和教學示範，以及在生物學、細菌學、細胞學和藥物化學等領域作常規檢查和研究。Through analyzing on the different phenomena of gas pouring amount at different coal seam, different area at the same seam, different position at the same area, the coal thicknss, inclined angle, structure, roof and floor rock character and water content in coal est. geology factor are regarded as the main reason of effecting the gas pouring amount
通過對不同煤層，同一煤層不同區域，同一區域不同地點瓦斯湧出量有很大差異現象的分析，認為煤層厚度、傾角、構造、頂底板巖性、煤中水分等地質因素是影響瓦斯湧出大小的主要原因。All the data were analyzed by analysis of variance of spss, and it turned out some surprising and unexpected findings, which deviated from the original hypothesis : ( 1 ) chinese non - english - majored efl learners showed multiple perceptual learning modalities, which was the similar tendency with those in traditional classroom ; ( 2 ) although there was a slight decrease of the means of six instructional learning styles, there was no statistically change of the visual, tactile, kinesthetic, individual and group learning ; ( 3 ) however, there was a significant negative shift on auditory learning style of chinese non - english - majored efl learners, which was contrary to the originally hypothesis ; ( 4 ) after being analyzed as a moderator variable, gender played a significant part in the choice of instructional learning styles among chinese non - english - majored efl learners ; ( 5 ) within the group of female or male learners, it produced significant change in auditory, kinesthetic and group learning in female students while there was no significant change of all the six learning styles in male students
而長期以來，研究者都是從理論的角度，對學習方式和計算機輔助教學進行研究，從實證角度的研究乏善可陳，基於此，本文運用定量研究的方法，著眼于調查研究計算機輔助教學對大學英語學生學習方式影響.本文以重慶大學來自8個專業的353名學生為研究對象，根據他們接受計算機輔助教學的時間長短分為三個組，進行問卷調查，對數據進行整理和分析，得出以下結論：大學英語學生傾向于多種學習方式；在六種學習方式中，有五種學習方式並沒有隨著在計算機輔助教學的環境而呈現顯著的變化；但在聽覺型學習方式上，出現了下降；從對性別的比較中，男生和女生在幾種學習方式上具有顯著的差別;而計算機輔助教學環境對男生學習方式沒有明顯的作用，卻對女生的聽覺型，體驗型和小組型學習方式有顯著影響。These two men, thus opposed in age and interests, resembled two parts of a triangle, presenting the extremes of separation, yet nevertheless possessing their point of union
這兩個人在年和興趣上的差別是如此之大，他們就象是一個三角形的兩條邊在底上互不搭界而在頂部重合。The stability of electric power system has been being focused for a long time toprevent a power system from losing synchronism after sudden fault ， researchers have done much work and got many accomplishments this paper applied the direct feedback linearization ( dfl ) technique on the power system ， a strong nonlinear system simulation results by matlab proved this method efficiency main works and results are as follows ： this paper compared some existing methods in excitation control ， fast valve control and coordinated control respectively, analyzed the developments and actuality of nonlinear control research in brief, illustrated why ransient stability could be greatly improved by using the fast valve control in chapter 3 ， indicated the importance of coordinated control farther this paper introduced the inverse system theory, based on which ， discussed the dfl theory, pointed out which had consistency with the inverse theory, expanded the dfl theory combined the idiographic model equations ， made which adapt to the model of a single machine - infinite bus power system this paper referenced abundance articles and educed a set of equations ， which could describe the dynamical process of excitation and fast valve control for synchronous generators in the equations ， there were several very important parameters of power system - - rotor angle ( ) ， rotor speed ( ) ， generator q axis voltage ( eq ) ， transient voltage ( e ' q ) ， active power ( pe ) ， mechanical input power ( pm ) ， valve opening ( ) ， generator terminal voltage ( vt ) ， based on the model ， nonlinear coordinated controller and terminal voltage optimal controller have been designed by using the expanded dfl theory and lq optimal control theory the simulation results showed that the controller could keep power system transiently stable under the effects of a symmetrical 3 - phase short circuit fault ， which achieved better postfault regulation compared with another two routine methods ， one is the proportion excitation controller and proportion fast valve controller, the other is the proportion excitation controller and the optimal fast valve controller, which could exert good performance when met 1ittle disturbance either
在介紹逆系統理論的基礎上，詳細介紹了dfl理論，通過比較闡明了dfl理論其本質是逆系統方法的一類，並結合具體課題推導出的模型方程將dfl理論進行了擴展，使之適應于電力系統這個強非線性對象。通過參考大量的書籍文獻推導出一套實用的可將大型汽輪發電機勵磁與汽門綜合起來進行控制的模型方程，此模型方程涵蓋了電力系統中特別引人注目的幾個量- -轉子角、轉子轉速、發電機q軸電勢eq 、暫態電勢e ' q 、有功功率pe 、機械功率pm 、汽門開度、機端電壓vt ，在此基礎上建立了實用的電力系統簡化的數學模型，並將擴展的dfl理論應用於此模型系統，結合線性二次型最優控制理論設計出大型汽輪發電機的非線性綜合控制器及機端電壓最優控制器，通過模擬實驗與採用常規的按電壓偏差進行調節的比例式勵磁控制器+汽門比例控制及採用常規的按電壓偏差進行調節的比例式勵磁調節器和基於二次型性能指標設計的最優快控汽門（考慮發電機的飽和因素）進行了對比，證實了採用此種控制器可以有效地提高電力系統的暫態穩定性，並且在電力系統遭受小干擾時同樣具有良好的調節性能。On the basis of looking up domestic and foreign literatures and consulting the facts of repairing factory, with 495t diesel engine machine as the study object and the fuel delivery advance angle as the study factor, this thesis has probed into the effect of the deviation of fuel delivery advance angle in each cylinder on exhaust and other performance of engine
本文在查閱國內外文獻及參考修理廠實際情況的基礎上，以修理后的495t直噴式柴油機為研究對象，以供油提前角為研究因素，探討發動機各缸的供油提前角偏差情況對排放及其它性能的影響。Chapter three author aimming at the blank of study on the inrollment policy of the higher education for minorities tries to probe theoretically into it from the perspective of the cause of minority student achieveinent higher educational function and educational policy, and to define the essence principle and foundadion of this policy, firstly, auther wants to show that the root to implementing this policy bases on minority history earth instance and cultural speciality by analyzing the cause of minority students low achievement, secondly, by the perspective perspective of higher educational function, author tries to show the important role of higher education to socialize minority students in case they are peripheried, to inherit and improve minority culture, in order to define that this policy is an important political mechanism to safeguard minority " s educational right and educational equality, thirdly, there are two points to be showed by discussing with the perspective of educational policy : the inrollment policy of the higher education for minorities is complexity and it is restricted and influenced easily by correlative mechanism because it involves virtuely in educational problem ethical problem and policy problem, on the other hand, the inrollment policy of the higher education for minorities don " t violate the principle of individual equality, instead, it carries out certain policy for some groups basing on the principle of the individual equality
一、通過對少數民族學生低學業成就的歸因分析，論述少數民族高等教育招生政策實施依據是少數民族歷史發展、現實狀況和文化特殊性。二、通過高等教育功能視角的探討，論述高等教育對少數民族學生的進一步社會化，避免少數民族個體被邊緣化的意義，以及高等教育對少數民族繼承、發展民族文化的意義，明確少數民族高等教育招生政策是保障少數民族高等教育權利、保證教育公平的一項重要的「政治機制」 。三、通過教育政策視角的探討，主要有兩方面內容，一是由教育政策的特點，論述少數民族高等教育招生政策實質上是集教育問題、民族問題和政策問題於一身，這使它的運行具有復雜性，它更易受其它相關機制的制約和影響;二是通過教育政策價值取向的探討，論述少數民族高等教育招生政策雖以一定群體為實施的對象，但並不違背個體平等原則，它是立足於個體平等的基礎上，依據能力選拔的原則，針對群體差異客觀存在的現實，對一定群體實施的一定「優惠政策」 ，以保證處於弱勢地位群體的權利，從而真正實現個體的平等。Meanwhile it retains evenness on lift force to prevent leakage of residue that is caused by installation clearance error or changes in welding criteria, flow off molten iron as well as break - over welding, so that the ideal fosion depth and finishment have been fulfilled
在需原動力的條件下，該機利用彈性夾角變化，隨著筒體轉動，使墊層焊劑始終緊貼筒體外側環向焊接區，並保持托力均勻防止因裝配間隙誤差或焊接規范變化而引起漏渣，鐵水下淌及焊穿現象，達到理想的熔深度和光潔度。After expounding vr concept and its characters, the necessity and rationality of vr existence and its application in cad / cam, several other aspects are studied : first, the three kinds of stereoscopic display theory are set forth and the research is focused on the theory which is based on parallax and discussed from the aspects such as the physical basis of the third dimension production, the influencing factors of third dimension, the theory and arithmetic of drawing stereoscopic figures etc ; second, the difference among vr, other interaction methods and vr ' s status are studied from the perspective of human computer interaction development, the cognitive psychology model of vr interaction is analyzed and a classification study on vr is done according to different operation missions and metaphors ; third, the concept of virtual design is given out based on the research on its other concepts, then the difference among vr, cad and the realization of virtual design are studied
在闡述虛擬現實的基本概念與特性、存在的必要性與合理性，以及在cad / cam方面的應用的基礎上，本文深入研究了: 1 .虛擬現實的三種立體顯示原理，著重於基於視差方式的立體顯示，從以下幾個方面進行了多角度的探討:產生立體感的生理基礎，立體感影響因素，立體圖繪制原理與演算法等。 2 .虛擬現實的交互原理，從人機交互的發展角度研究了虛擬現實與其它交互方式的異同以及它所處的地位，分析了虛擬現實交互的認知心理學模型，並按作用於對象的任務不同和交互隱喻方式的不同對虛擬現實的交互方式進行了分類研究。 3 .虛擬設計，在研究虛擬設計的各種定義方式的基礎上定義了本文中虛擬設計的概念，研究了它相對于傳統cad的不同之處，以及虛擬設計的實現規劃。Based on in - depth analysis on characteristic and function principles of psd, combined with characteristic of measured object, this article presents an new real - time measurement for symmetrical degree, guiding - groove, twining angle, inside radius of long direction pipe ; completes designing work for hardware of function module and application software ; and gives analysis and computation on error sources and uncertain - degree of measure result. based on above work, this article develops a parameter - auto - chosen, integrated and automatic measurement device for beeline degree, guiding - groove symmetrical degree, twining angle and inside radius of long direction pipe
本文在深入分析研究psd的特點和工作原理的基礎上，結合被測量對象的特點，首次提出了長定向管導槽對稱度、纏角、內徑等實時自動化測量的一種新方法；完成了硬體功能模塊及應用軟體的設計工作；並對測量結果的誤差源及不確定度進行了分析和計算；在此基礎上研製了長定向管的直線度、導槽對稱度、纏角及內徑等參數自動、實時綜合測量設備。In this paper a new method based on sa4828 is proposed and realize through dsp, in order to solve the shortcoming which use more hardware resouces, and the problem in precision and stabilization, which is produced spwm using hardware or software simplie, the experiment shows that this method not only use littler hardware resources but also improve the precision and the stabilization. the tradition pid control can not adapt the change of parameter over the control object, and it can not solve the conflict between dynamic index and the static index. this paper introduced the principle of real time operation systerm uc / os - ii firstly. then analyzed the works in porting to dsp, and give the method to resolve the problems to porting it
此外，這些調節規律本身不能很好的解決系統的動態與穩態指標間的矛盾，也就是說採用傳統的pid難以組成諸如機器人那樣需要完成快速跟蹤、高精度力矩綜合控制的伺服系統。為了解決控制對象參數變化時傳統pid適應性差的問題，本設計採用變論域的模糊pid ，提高了精度、改善了其調節性能。本文主要作了如下的工作，並取得了成就：利用集成晶元ad2s80來求取空間角度，提高了精度，簡化了控制的復雜性。Finite volume method can deal with irregular boundary conditions. in this paper, we discrete the water domain into triangular meshes, and simulate dam breaking, water droplets. the same as finite difference method, we just specify waves source, the movement of water waves can be simulated automatically
有限體積方法能夠處理具有不規則邊界水域的水流現象，在本文中，我們把求解的水域離散成無結構三角形網格，對潰壩問題、雨景等水流現象進行了模擬，和有限差分方法一樣，我們僅僅指定產生水流動畫的波源，水流動畫的細節均由數值方法產生，不需要人工的干預。At present, it is still in the middle stage of kuznets curve ; the differences of income in the interior of the east and the west are bigger than the middle, and they have been in the scope of income inequality which is regarded to be bigger by the international ; the phenomenon of " the club convergence " of income growth of the fanner between the east and the middle is obvious, but this can not appear between the east and the west, the west and the middle ; the differences in the interior of the high income area and the low income area are smaller than in the interior of the other areas in which the differences are increasing, this conforms to " the u " theory. by adopting theil model to analysis the general farmers incomes differences based on various regions, it is showed clearly that the farmers income inequality among different areas is the main reason to result to rural income differences. this part contents chapter 1, chapter 2 and chapter 3
結果表明，無論從那個角度來看，改革以來，我國地區間農民收入均呈現差異擴大的態勢，而且擴大的速度快，幅度大，且目前仍處在庫茲涅茲所提出的「 u型」曲線的中期階段；東部與西部地區內部各省之間收入差異較大，目前已進入國際上公認的較大不平等的范圍，而中部內部差異較小，目前仍處于合理范圍之內；同時農民收入增長在東部與中部之間出現了新經濟增長理論所揭示的「俱樂部收斂」現象，而這一現象在東部與西部、中部與西部之間卻沒有發生；高收入與低收入水平區內部差異小，而介於中間收入水平的區域內部差異較大，且保持著較強的擴大趨勢，這一點基本上與「 u型」理論的結論相符。This paper attempts to make an explanation of language parallax in view of visual angle and metaphor within the framework of cognitive linguistic, and explores the methodology of translation of language parallax within this framework
本文在認知語言學的框架內，從視角及隱喻認知機制兩個方面對一些語言視差現象做出解釋，並探討在此框架下的語言視差的翻譯問題。分享友人