首向角 的英文怎麼說

中文拼音 [shǒuxiàngjiǎo]
首向角 英文
angle of heading
  • : Ⅰ名詞1 (頭) head 2 (首領) leader; head; chief 3 (表示方位) aspect 4 (姓氏) a surname Ⅱ動...
  • : 角Ⅰ名詞1 (牛、羊、 鹿等頭上長出的堅硬的東西) horn 2 (古時軍中吹的樂器) bugle; horn 3 (形狀像...
  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: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、地物目標觀測方之間的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. First, based on phased array antenna ' s mono - pulse goniometry and separate coordinate technology about phase control, the antenna beam pointing error formula, caused by phase quantization error, is derived from linear array and circular array to planar array and cylindrical array

    先以單脈沖相控陣天線測原理為基本理論出發點,利用相位控制的坐標分離技術,基於線陣、圓形陣等簡單形式的相控陣天線,推導了平面陣、圓柱面陣等相控陣天線由相位量化誤差引起的波束指誤差公式。
  3. The rudder roll damping system is just the system whose controlled object is not square matrix. the input is rudder - order and the outputs are the roll angle and the heading angle. the input controls the two outputs

    舵阻搖系統正是被控對象為非方陣的系統,它通過輸入_ r (舵令)來控制輸出(橫搖)和(首向角) 。
  4. The equation of the radiation transfer between two surfaces indicates that there are three factors that have influence on radiation transfer : brdf, projected solid angle ( psa ), and incident radiation flux. thereafter, a new baffle system design idea is put forward

    本文先介紹了光學系統雜光的抑制措施,從光輻射在兩個表面傳遞的基本能量傳輸方程出發,指出影響輻射能量傳輸的三個因子:雙反射分佈系數brdf 、投影立體psa和入射輻射通量。
  5. The study in the paper starts with beam distortions, and it treats the plastic deformation area as pure bending sect, rest of the beam as rigid bodies. according to different shapes of the external tendons, it divides into three structural forms familiar in projects, that is the beams with no deviator, with a deviator and with two deviators, and studies the relation between the deformation of the external prestressing tendons and that of the beams, and derives the formulas of the ultimate stress increment of external tendons. in the formulas, the ultimate angle corresponding to half of the plastic deformation area is considered as a variable parameter

    本文先從梁極限狀態下的變形入手,將塑性鉸區看作純彎段,將塑性鉸以外的區域看作剛體,按照體外預應力筋的形狀不同,分工程中最常見的三種體外結構形式,即無轉塊的直線型體外筋混凝土梁、具有一個轉塊的單折線型梁和具有兩個轉塊的雙折線型梁,研究體外預應力筋變形和梁體的變形間的關系,推導出以極限狀態下塑性鉸區之半對應的轉為參數的計算體外預應力混凝土簡支梁以及連續梁的體外筋應力增量計算公式,並進一步求得梁的極限承載力。
  6. Its main contributions include the following several aspects : firstly, the dissertation constructs the mathematic model of short baseline orientation determination using two geostationary satellites and analyses the applicable conditions of carrier phase interferometry. orientation determination precision is analysed in depth through both the conventional linearized method and monte - carlo computer simulation method, and the mathematical simulation results show that the linearized method has the shortcoming of fairly low elevation error analysis precision in high latitude area so as not to be very appropriate there. by analyzing the definite factors influencing orientation precision, the dissertation develops the concept of orientation dilution of precision, which uncovers the internal cause of exotic error behavior of bi - satellite orientation, and has important guiding significance for practical engineering applications

    本文系統地研究了基於「北斗一號」衛星載波相位干涉測量原理實現地球靜止雙星定的相關技術,主要研究成果包括以下幾方面:先,建立了利用兩顆地球靜止軌道衛星進行短基線定的數學模型,分析了載波相位干涉測量的適用條件;採用傳統的線性化解析法及蒙特卡洛隨機模擬法兩種途徑對雙星定的精度進行了詳細分析,數學模擬結果表明在高緯度地區線性化解析法由於俯仰誤差分析精度略有下降而不太適合;在分析定精度確定性影響因素的基礎上,提出了雙星定精度衰減因子odop的概念,揭示了雙星定誤差特殊表現的內部機理,對實際工程應用具有重要的指導意義。
  7. First of all, the assembly model of dfa is established and the data structure of the model is proposed ; in order to redesign product and structures and select optimized assembly plans, an assemblability evaluation system is constructed. secondly, assembly process planning is analyzed, including assembly path planning and assembly sequence planning ; and then the thesis brings forward the way of 11 - tuple to represent the movement of assembly / disassembly of assembly elements. in the end, this paper makes an research on the technology of interference checking, raised a kind of algorithm of swift interference checking based on envelops bounding box decomposition, hence, the accuracy and efficiency of the algorithm is improved dramatically

    先建立了面裝配設計的裝配模型,給出了它的數據結構;接著從面產品結構和裝配工藝過程兩方面再設計的度,構建了裝配性評價體系;接著闡述裝配工藝規劃技術,包括裝配路徑規劃和裝配順序規劃;然後提出了11元組法來表示裝配元件的裝拆運動;最後對干涉檢驗技術進行了研究,採用一種基於包容盒逐層的快速干涉檢查演算法,提高演算法的精度和效率。
  8. 3. a space bond slip relation of reinforcements in either end of a member is proposed, based on one - dimensional bond slip model of reinforcements proposed by teng zhiniirmg from tsinghua university, the first - time loaded ascending stage ? curve of which model is modified as the line which parameters are not changed so as to simply the computation. the bond, slip is regarded as the boundary nonlinearity of a member

    3 、採用清華大學滕智明建議的一維鋼筋粘結滑移恢復力模型,但從簡化計算的度出發,將次加載的上升段曲線改為直線,並假定構件端部的諸多縱鋼筋的滑移服從平截面假定,考慮由節點錨固區粘結滑移引起的構件端截面軸和兩轉附加變形。
  9. This paper focuses on the research of the stress mechanism of the ribbed shell structure in statics, dynamics and under the explosive load on the basis of the engineering practice of cave depot of single aircraft. in this paper, according to the classical shell theories, the basic differential equilibrium of the ribbed shell structure and the finite element analysis of 3d rippled plate are established, in which the function of annular ribs reinforcement bars and 3d ripped steel plates are distributed in the range of the steel, and the functions along the longitude direction of tension, bending, and torsion are neglected ; applied with dynamic analytical theory, the dynamic model of ribbed shell structure and the analytical theory model of elastic - plastic are set up ; the triangle series method is used to solve the displacement and stress under the distributed load and the concentrated load of the ribbed shell structure

    本文以軍用機場地面單機掩蔽庫工程建設為工程背景,次對內襯三維波紋鋼板混凝土拱型復合結構的受力機理進行了靜力、動力和爆炸荷載的分析研究。根據將橫肋、鋼筋及三維波紋鋼板的作用均勻分佈在殼體范圍內的情況,忽略橫肋、鋼筋及三維波紋鋼板沿殼體母線方的抗拉、抗彎及其抗扭作用,次推導出了內襯三維波紋鋼板混凝土殼體的微分平衡方程,建立了有限元計算模型,並採用三函數法,求解了三維波紋鋼板混凝土拱型復合結構在分佈荷載和集中荷載作用下的位移響應和應力響應,並與普通殼體進行了比較。
  10. As the first executive to be invited from outside both the public service and the military, mr dickson had the challenge of establishing the role of cio within the department of national defence, reporting to the deputy minister and also the chief of defence staff

    戴啟新是國防部位非從公務員及軍事人員中委任的行政人員,他在國防部成功確立資訊科技總監的色,並副部長及國防總參謀長負責。
  11. This thesis has introduced the development of the traditional wireless sensor network and current situation at first, then analyzed the principle an framework of the wireless sensor network, and the challenge to the traditional wireless sensor network technology for environmental monitoring, put forward the novel environmental monitoring system based on wireless sensor network technology, have recommended a kind of brand - new wireless node design plan of framework of wireless sensor network and node hardware to be designed and realized, then based on ieee 802. 15. 4 standard, this thesis analysed the design faces the wireless communication protocol stack used in environmental monitoring, have introduced the realize of physics layer, data chain layer, network layer, application layer. have solved the wireless sensor network data sampling, systematic energy - conservation optimize, this thesis summarized the preceding work finally, have looked forward to the development, application and commoditization in the future

    本文先介紹了傳統無線傳感器網路的發展概況及現狀,然後分析了無線傳感器網路的原理與架構及其在環境監測對傳統無線傳感器網路技術的挑戰,接著本文提出了新穎的基於無線傳感器網路技術的環境監測系統架構設計,介紹了一種針對大氣環境監測的全新的無線傳感器網路節點的構架設計方案以及節點的硬體設計和實現,然後本文以ieee802 . 15 . 4標準為基礎分析設計了面環境監測應用的無線通信網路協議棧,從工程度介紹了物理層、數據鏈路層、網路層、應用層的設計實現,解決了無線傳感器網路節點的數據採集、節點互聯以及系統節能優化等問題,最後本文總結了前面的工作,展望了基於無線傳感器網路技術的環境監測系統在未來的發展方和應用方式等幾個方面的發展遠景。
  12. Focused on " understanding media ", the article analyses in chapter i the key media theory of employing what could be of mcluhan in a thoughtful angle , and advances the viewpoint of " human being - the extending of media ? ". in chapter ii 、 in the following third part , the idea of " media ' s endding " is expounded and demonstrated , which is composed of three parts : extreme of speed , content of the content , and human being ' s last extending - the extending of central nerves 。 in the final part , the general conclusion ? ? electronic media ' s influence on human behavior is given , that is human are under universal narcissism and pacing to the bottom of it impelled by electronic speed. the article has five original points in it : first of all, in virtue of " content theory " , it analyzes the theory of " meida equals to information " by mcluhan from a scale theory stand. secondly, the tremendous power of electronic media is emphasized from an implosion view. in the third point, the article advanced originally that, after extension of central nerve system, human themsevels reverse to an extension of media and turns into a node of it ; at the same time, the article proposes that, all extensions before that of central nerve are " controllable extension ", however, it reverses to " uncontrollable extension " while extending ; then the authur put forward for the first time that, the concernful reason obsessing human is the failure of their in - body central nerve system " s jointing and controlling on out - body central nerve system naturally. 。 the fourth point is, the article demonstrates systematically the idea of " media ' s endding " from three levels solely by thoughtful means, and this is the most revolutionary point of it all

    論文的創新之處有五點:一是從「尺度論」的度,藉助「內容論」來解讀麥克盧漢的「媒介即訊息」的思想;二是從「內爆」的度突出電子媒介的巨大力量;三是獨創提出在電子媒介時代,人類延伸了自己的中樞神經系統之後,人類本身被逆轉為媒介的延伸,成為電子媒介的一個節點;同時在本章節中提出中樞神經延伸之前的所有延伸為「可控延伸」 ,而中樞神經被延伸時「可控延伸」逆轉為「不可控延伸」 ,並次提出,困擾人類種種問題的重要原因是體內的中樞神經系統無法無縫地對接和控制被延伸出去的體外中樞神經系統;四是獨自運用思辯的力量從三個層面綜合論證了「媒介的終結」的觀點,此處論證為本文最大創新之處,而此結論也將具有重大的理論與現實意義;五是根據以上幾個部分的論述,對人類目前的總體狀態作了一個定性的判斷,即:我們這個時代的迷惘在於我們深陷於自戀的漩渦里難以自拔,在電子媒介以其固有的電力速度的推動下,我們走自戀的盡頭。
  13. In the thesis, the strategy for china to develop the hydrogen energy system about fuel cell vehicles is analyzed firstly. then a case in beijing is studied, which is based on an imaginary but possible fcb ( fuel cell bus ) project in beijing, 2008. in the case, 11 feasible plans of hydrogen energy systems about fuel cell vehicles are evaluated from all the aspects of energy, environment and economy with lca ( life cycle assessment )

    論文先從宏觀度分析我國應該採取的燃料電池汽車氫能系統發展戰略;然後從微觀度運用生命周期評價方法對一個假想的,卻極有可能在未來實施的燃料電池汽車氫能系統案例的所有可行方案從能源、環境和經濟三方面進行評價,選出最優方案並討論改進方;最後對燃料電池汽車氫能系統的安全性進行評價並總結現有工作中存在的問題,展望氫能系統評價的發展方
  14. The main results and academic contributions of the dissertation can be summarized as following : 1 ) for the difficulty to obtain the accurate analytical solution of the stress constraints around 3d cracks, detailed 3d fe analyses have been conducted to study the out - of - plane constraint factor tz around a straight through - thickness crack, a quarter - elliptical corner crack and a semi - elliptical crack embedded in an isotropic elastic plate subjected to uniform remote tension loading. the distributions of tz are minutely studied in the forward section of the cracks. strong 3d zones ( tz > 0 ) along the crack front were investigated despite the far field stress - free boundary conditions

    全文主要研究內容和學術貢獻如下: 1 .針對一般三維裂紋端部場應力約束準確解析的困難,對均勻拉伸載荷作用下各同性彈性板中穿透厚度中心直裂紋、半橢圓表面裂紋和1 / 4橢圓裂紋進行了大量詳細的全場應力三維有限元分析,次全面分析了非穿透裂紋端部場三維影響區范圍,給出了不同形狀三維裂紋前沿離面應力約束因子tz的數值解,並結合k場平面解給出了非穿透裂紋端部應力場k - tz雙參數描述。
  15. Fourthly, the solutions for non - axisymmetical dynamic responding of elastic circular plate ( thin and thick plate ) rested on transversely isotropic saturated half - space / layered ground subjected to arbitrary harmonic loading are presented. under the contact conditions, the problem leads to a pair of dual integral equations which describs the mixed boundary - value problem

    先建立直坐標系下波動問題的狀態方程,經雙重fo吐er變換求解狀態方程后得到傳遞矩陣:利用遞矩陣給出直坐標系下層狀橫觀各同性飽和地基在任意分佈簡諧荷載作用下穩態動力響應的一般解。
  16. For this, the paper combines some thoughts such as role, agent, and service. it also proposes the developing framework of a role - based collaborative software with the object - oriented model technology and imitatively realizes the interacting and cooperating process of the members in developing activities. firstly, to overcome the difficulty of members ’ fuzzy realism to roles, this paper organizes supplying and requiring servvice set, bridges the reflecting relationship between roles and services and realizes the clear definition and dynamic transformation of roles through modifying service set and service - role registered table

    為此本文結合色、 agent 、服務等思想,利用面對象建模技術提出一種基於色的協同軟體開發框架,主要工作有:先針對成員在開發過程中對色認識模糊的困難,本文為色組織了供給和需求兩組服務,建立了色與服務之間的映射關系,通過修改服務集和服務-色登記表,實現了色的清晰定義和動態修改,與傳統方法相比,清晰色有利於成員明確自身所承擔的職責和擁有的權限;同時為簡易成員查找色的復雜過程,提出一種靈活的色查找方法,利用色匹配矩陣和色推薦演算法,匹配出符合成員要求的一組近似色,降低了色查找的難度。
  17. Based on the cause analysis for failure of water stop of tunnel ' s cast in site circular construction joint from theoretical and constructional point of view as well as the working mechanism of expansive water stop proposed in terms of width of construction joint, the relation between width of circular construction joint and water pressure resistance of water stop is established and its model test carried out

    先從理論和施工度分析了隧道現澆環施工縫止水條的失效原因,然後從施工縫張開度的度提出了膨脹止水條止水的原理,在此基礎上建立了施工縫張開度與止水條抗水壓力之間的關系,並進行了模型試驗。
  18. For this reason, the following problems are researched emphatically : firstly, the long - term prediction method for calculating the extreme values of slamming pressure is founded. the effects of sea conditions, ship speeds, traveling directions, loading conditions on the results of long - term prediction are studied. on this basis, the computing process is simplified rationally, so as to this method can be used in practical engineering computations

    為此,本文主要在下面幾個方面進行了探索:先,建立了底板砰擊極值壓力的長期預報方法,通過分析海況、航速、航、裝載狀態等不同的影響,合理簡化了長期預報的計算過程。
  19. For displaying the initial date aquired from sea chart correctly in three different display modes ( relative head up motion, relative north up motion, true north up motion ), a series of coordinate conversion are necessary. in the second chapter, data structure and various coordinates conversion are discussed in details

    要使從海圖錄入的原始數據能夠在3種不同的顯示方式(船上的相對運動顯示方式、北上的相對運動顯示方式和北上真運動顯示方式)下正確的顯示出來,必然要在幾個坐標系(圖板坐標系、屏幕坐標系、平面直坐標系和地理坐標系)中進行一系列的坐標變換。
  20. Firstly, with the help of angular momentum coupling theory, the hamiltonian for multi - electron adorns is rewritten in terms of spherical tensors. the advantage of this form is that the radial, angular and spin parts are separated completely, which makes it easy to calculate the angular matrix elements by means of irreducible tensor. secondly, theoretical expressions of the relativistic corrections including the relativistic mass correction, the darwin correction terms, the electron - electron contact terms and the orbit - orbit interaction which contribute to the non - relativistic energy for two - electron atom are theoretically derived in the lsmlms scheme

    具體內容包括:先,藉助動量耦合理論,將多電子原子哈密頓算符中的自旋-自旋、自旋-其它軌道以及軌道-軌道相互作用全部改用球張量表示,這種球張量形式的優點在於已將原子哈密頓算符中的徑和自旋部分完全分開,從而便於計算矩陣元,而且矩陣元可以方便地利用不可約張量理論來進行計算。
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