空間向量環 的英文怎麼說

中文拼音 [kōngjiānxiàngliánghuán]
空間向量環 英文
spatial vector loop
  • 空 : 空Ⅰ形容詞（不包含什麼; 裏面沒有東西或沒有內容; 不切實際的） empty; hollow; void Ⅱ名詞1 （天空） s...
  • 間 : 間Ⅰ名詞1 （中間） between; among 2 （一定的空間或時間里） with a definite time or space 3 （一間...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 環 : Ⅰ名詞1 （環子） ring; hoop 2 （環節） link 3 （姓氏） a surname Ⅱ動詞（圍繞） surround; encircle;...
  • 空間 : space; enclosure; room; blank; interspace
  1. Based on the original data of tm in 1988, 1992 and 1998, then after some processing and analysis, the author have the thematic data of land - use by interpretation. on the basis of them, the author made the analysis of land - use for this area based on the spacial analysis of gis and the method of comparison between result of land - use classification as follows : the method of aggregating analysis, the analysis of urbanization, the analysis of the transformation rate of cultivated land, the analysis of the driving force of land - use change and the sustainable use of land. the conclusions may be demonstrated below : the cultivated land decreases with the patchs fragment ; road spreads radialy surround second - ring road ; the urban land expands quickly toward southwest along the major roads and be concentrative. rural land and industry increse rapidly with dispersing ; 0thers change slowly. the major driving forces of land - use change in this area are the rapid expansion of urban and rapid growth of population, foreign investment and the development of tertiary industry which was based upon the real estate. according the trendency of land - use change, the author consider that we must insist on the way of the sustainable use of land based on protecting the cultivated land

    在此基礎上，應用分類結果比較法，在gis各種空間分析功能（幾何量算、統計分析、疊加分析及緩沖區分析）的支持下，對該區土地利用變化進行了如下分析：土地利用綜合分析、城市化進程分析、耕地轉化率分析、土地利用變化因素分析及土地的可持續利用分析。結果表明：該區土地利用變化主要表現為耕地大量減少，斑塊破碎化；交通用地沿二環線呈放射狀向四周擴展；城鎮用地沿交通干線向西南方向擴張迅速，用地趨于集中；農村居民點和工礦業用地增加，用地趨于分散；其它用地變化較慢。這一用地變化的主導因素是城鎮用地擴展快、人口增長迅速、外資的大量投入及以房地產為主的第三產業的快速發展。
  2. 4 ) a uniform crb expression of bearing estimation for spatially distributed sources in unknown noise environments is derived. more exactly, the crb performance of bearing estimation for spatially distributed sources in several typical spatially - correlated noises is evaluated theoretically and numerically, respectively. it is disclosed that the estimated errors mainly depend on space ambiguity between signal and noise components

    4 ）推導了未知噪聲環境中空間分佈源波達方向估計的統一的crb表達式，分析了幾種典型的空間色噪聲情況下分佈源波達方向估計的極限性能，揭示了信號分量和噪聲分量之間的空間混疊對分佈源波達方向估計的決定性作用。
  3. Multi - user direction - of - arrival estimation in cyclic cumulant domain via spatial signature

    基於空間特徵的多用戶循環累量域波達方向估計演算法
  4. By taking advantages of epipolar line features and depth discontinuities in reference 中國科學院 軟件 研究所 博士 學位 論文 基于 圖 象 的 快速 繪制 技術 的 研究 images ， an efficient inverse wmping algorithm is pfoposed in chapter 3 for gcnerating nagcs of novel views by combining multiple eference images 帆 enhm different vie 呷 oints because continuous segnents determi 。 d by pairs ofedge pixels at co 。 spending epipolar lines are order kept ， only pairs of edge pixels in the reference 渝 明 e e necess 叨 口 cowute to obtain generalized disparity of all points in the desired image as a result ， sighficant acceleraion could be made in the endering pfo 比 鴕 two accelerating techiq 此 s e presented in this algori 山 mb accelerate the hole illing process his algorithm extends the reference images rom projection of single col ： ii ’ ected surface in previously developed nvnverse w 出 下 er to ima 驢 s captured rom complex scene in chapter 4 ， an 《 dent ibr method is prese 庇 仙 y takn ull 訕 antage of 呷 bies c 咖 the method can simulate the 3d details on sllri ： ace of object successfully he 。 叩 proach ， called rered ature mopmp consists of two pans at fst ， an origi 。 ltexture with orthogonal displacements per pixel is deco 啊 osed into a series of new t6 刀 mfcs with each 他 lug a given displacement per pixel ， called ae ， ea atures ， or lt hen hese lt e used to render the novel view by conventional texture mapping d avoid gaps n the endered hlla 驢 ， some phels are to be interpolated nd extended in the 廠 kaccoding to the depth differe eee between two neighbor pixels in the original texture as these ltlt fc … e much storage nd therefore much time is equired to install ltlt into the text ’ ufc buffec an 舊 thod is pfoposed to co 呷 fcss the ltlt ， nd the cottcspondingfclldering method is given experimental esults show that the new method is efficient ， especially n rendering those objects with a smaller depth rnge compared withtheir size ， such as relief surfaces of building

    與己有的三維變換方法相比較，該方法不但成功地填補了由於投影區域擴張而產生的第一類空洞，而且成功地填補了由於空間深度非連續物體相互遮擋而產生的第二類空洞，從而方便地實現了虛擬環境中的漫遊；基於物體表面深度的連續性，本文提出了一個位移預測方法? ?此方法可以從單幅參考圖象獲得逆映射過程中所需要的目標圖象的位移信息，從而大大提高了演算法的效率：與通常的正向映射演算法相比，此演算法克服了多幅參考圖象所帶來的計算量成倍增長等問題，而且誤差較小。 2 ）基於極線幾何的快速逆映射演算法。利用參考圖象的邊界信息與隱含的遮擋關系，以及極線幾何的性質，本文第三章提出了一個基於極線幾何的快速3 『一中國科學院軟體研究所博士學位論文基於圖象的快速繪制技術的研究逆映射演算法，從多幅參考圖象精確合成當前視點目標圖象。
  5. Furthermore, the range of measurement of it was pointed out. all the analysis shows that our crsi 1il can be used to measure the spatial mid and low frequency wavefront distortion. 5. based on our crsi and algorithm, the phase modulation characteristic of an lcslm was measured

    五、利用環路徑向剪切干涉儀共光路、雙光束干涉的特點，全場準確測量了液晶空間光調制器的位相調制特性，並且利用它的位相調制特性實現了臺階位相板畸變波前的補償，由此證明了液晶空間光調制器可用於控制波前畸變。
  6. A cyclic radial shearing interferometer was used to diagnose the wavefront distortion of a laser system and an lcslm ( liquid crysnd spatial ligh modulator ) was used to control it. some results have been summarized as follows : l. according to the theory of scalar quanity diffeaction and the model of the random gaussian phase screen of low frequency wavefront, the effect of the low frequency wavefront with different rms gradient on the focal spot of a laser beam was studied

    本論文在激光光束波前畸變檢測和控制上進行了新的探索，主要就空間相位調制環路徑向剪切干涉儀以及它對波前畸變的檢測和液晶空間光調制器及其對中頻段波前畸變的控制進行了研究，其研究的內容和取得的成果如下：一、根據標量衍射理論，結合低頻波前畸變的高斯隨機位相分佈模型，研究了不同均方根梯度低頻畸變波前對激光光束焦斑聚焦性的影響，並採用描述中頻段波前畸變的功率譜密度概念，模擬計算了它對激光焦斑旁瓣的貢獻。
  7. This instrument can automatically send the information from the irradiation belts based on the detecting results, which will provide an foundation for the reinforcement of aircraft irradiation resistance. a multi - functional spectrometer - identificator is developed to measure fluxes and spectra of protons, alpha particles, oxygen and iron ions in space

    根據要求自動向地面發送空間不同位置的帶電粒子通量和它與能量關系的訊息，主要用於近地空間輻射環境的探測和監測，為空間飛行器的抗輻射加固提供依據。
  8. By stirring water with the impeller, splash water to the air evenly and widely, strengthen the pond water ' s flowing circulation, make pond water dissolve into oxygen and death of fish, shrimp and eel, raise the breeding density, quicken the growth so to achieve high and stable yields

    通過葉輪攪水，把水均勻而彌散地潑向空間，加強池水流動循環，使池水溶入氧而稀釋和排出有害物質，增加水中的溶氧量，改善水質，防止魚蝦鰻浮頭死亡，提高養殖密度，加速生長，從而達到高產穩產。
  9. All the contents are developed around a set of scaling laws taking the form of exponentials which relate to almost all the issues of complexity including fractals, chaos, strange attractors, localization, and symmetry breaking, etc. the main work can be summarized as follows : starting from the law of allmetric growth three fractal dimensions in a broad sense are derived, and according to these dimensions, geographical space is divided into three levels, i. e., real space, phase space, and order space, each of which corresponds to a kind of dimension. based on the idea of spatial disaggregation and using the rmi ( relationship - mapping - reversion ) principle, the urban system is formulated as three scaling laws of the three spaces, including number law, size law, and area law, which can be transformed into a set of power laws such as allometric law and zipf ’ s law associated with fractal structure

    從異速生長律的縱向、橫向和切向三個角度將地理空間劃分為實空間、相空間和序空間，分別對應于空間系列、時間序列和等級序列三個層面，每個層面的測度各有自己的空間維度。基於「空間循環細分-等級體系-網路結構」的數理等價關系，利用rmi （關系-映射-反演）原則，成功地實現了城市系統宏觀模型的理論抽象，將空間復雜性問題表徵為簡單的指數式標度定律（包括數量律、規模律和尺度律） ，這一組標度律可以與一組冪次定律（包括具有分形性質的規模-數目律、異速生長定律和三參數zipf定律）互為變換。
  10. This paper expatiated that the mathematics models of ac motor is higher order, non - linear and closed coupling, multivariable input - output system. and introduces the principle and the algorithm of sine pulse width modulation ( spwm ), opened - loop space voltage pulse width modulation control ( svpwm ) and field oriented control ( foc ). finally, realized the control strategies of variable - frequency speed regulating using assembly and c language

    文中闡述了交流異步電機的數學模型是高階、非線性、強耦合的多變量輸入輸出系統，介紹了交流電機的正弦脈寬調制、開環電壓空間矢量的u / f控制和磁場定向控制的原理及控制演算法，並利用dsp構成控制系統，通過匯編語言和16位定點c語言混合編程的方法實現了上述的變頻調速控制策略。
  11. Adopting rotor field - oriented vector control methods, through which make the stator and the rotor magnetmotive forces can be kept orthogonal all along during operation of the bldcm, combining hysteresis current modulation ' s current control advantage and space voltage vector modulation ' s torque ripple attenuation advantage, then designing a sort of bldcm hysteresis current svpwm control method

    摘要研究採用轉子磁場定向的矢量控制方法使無刷直流電動機定、轉子磁勢矢量始終保持正交，結合滯環調制電流控制和空間電壓矢量調制，設計了無刷直流電動機滯環電流svpwm控制方案。
  12. Competition between individual enterprise and individual enterprise no longer exists, having been replaced by confrontation between the overall strength of supply chain and supply chain. supply chain alliance broke the existing structure of the value chain, reengineered and optimized products, customers, technology and other resources. therefore, this new cooperation model of enterprise, supply chain alliance ( sca ), becomes one of the most important management strategies leading enterprise to success, and is considered as the evolutional mainstream of the future enterprise organizational form

    本文引入誕生於生物科學領域的共生理論，吸收和發展國內外供應鏈聯盟相關領域的最新研究成果，從對供應鏈聯盟的基本認識和發展方向入手，分析了供應鏈聯盟中的共生現象以及形成共生的條件，提出了供應鏈聯盟共生系統的概念，建立了供應鏈聯盟共生系統模型，用數學模型表達了聯盟共生系統的生存環境、能量空間模型以及聯盟共生系統發展能量模型，重點闡述了供應鏈聯盟共生動態穩定性以及聯盟共生能量分配。
  13. In this thesis, a design scheme is introduced about whole early - warning system ’ s structure according to the optical needs. the focus is placed on the pointing speculum ’ s light - weighting design. through comparison, sic is selected as the speculum ’ s material which has features of high strength, low density, well comprehensive performance and being adaptable for space environment

    本文首先根據光學需要對導彈預警系統總體結構進行了設計，重點對其中的關鍵部件指向反射鏡進行了輕量化設計，通過比較選擇了合適空間環境且具有高強度、低密度、綜合性能好的sic作為反射鏡的材料，運用有限元分析軟體ansys對幾種輕量化結構分別進行優化，通過比較最後確定指向反射鏡輕量化結構及尺寸。
  14. Also, much related research requires the narrowband assumption, which is not always realistic in practical applications. it is necessary to analyze the effects of finite bandwidth to bearing estimation of spatially distributed source. additionally, more complex noise models should be dealt with in practical situations as well as that of white gaussian noise

    不過，其中多數方法僅適用於小角度擴展情況，當角度擴展比較大時，需要在估計的穩健性和運算量之間進行折中；而且，許多方法要求信號傳播滿足窄帶假設，這在實際的應用場合中可能很難得到滿足，有必要分析信號帶寬對分佈源波達方向估計的影響；另外，也有必要考慮空間色噪聲環境中的分佈源波達方向估計問題。
  15. It shows that a disadvantag ekists when a crsi is used to measure a step structure in a wavefront, but it is useful to adjust a crsi system with lcslm. 4. according to the didriction effect of an aperture, the spatial resolution of our crsi was analyzed and the transform function of our crsi was calibrated by using the psd method of a step wavefront. and some factors which are associated with the accuracy of our crsi were analyzed too

    四、從光學系統衍射效應的角度分析了本文建立的環路徑向剪切干涉儀的空間解析度，並利用波前功率譜密度的概念對該干涉儀的空間頻率響應特性進行了標定，分析了限制該干涉儀測量精度的主要因素以及徑向剪切比與測量精度的關系，並指出了該干涉儀的測量范圍，結果顯示該干涉儀基本上可用於準確測量中低頻段的波前畸變。
  16. All kinds of social power which correlated with creative activity, such as government 、 higher education 、 civil organization 、 bank 、 broker company 、 investment company 、 social community and users which undertake the risk of technology innovation in the program of technology innovation and different stages of technology respectively ; vertical social transferred proportion mechanism is on the basis of time, according to the procedure of the social transference of the risk, it can transfer the decision risk, technology risk, manufacture risk and market risk of the technology innovation to the society gradually, and proportion the risk among the interrelated social power

    橫向社會聯合分攤機制立足於空間的維度，各種涉及技術創新活動的社會力量，包括政府、高校、民間組織、銀行、中介機構、投資公司、社區組織、用戶等分別在技術創新項目和技術創新的不同環節上，承擔技術創新的風險;縱向社會轉移分攤機制立足於時間維度，按照風險的社會轉移程序將技術創新的決策風險、技術風險、生產風險和市場風險，逐漸向社會轉移，在相關社會力量中進行分攤。在技術創新社會行動中，形成許多技術創新風險社會分攤的方式。
  17. Based on fourth - order cumulant, a computationally efficient method for joint estimating both directions of arrival and ranges of near field sources with known carrier frequency is firstly presented. the proposed algorithm need not any spectral peak searching and the 2 - d parameters are automatically paired. lt is suitable for arbitrary additive gaussian noise environment. in the following section, a 3 - d esprit method for jointly estimating of frequencies, doa ' s and ranges of multiple near - field sources with unknown carrier frequencies is proposed. the parameters estimation are given by the eigenvalues of different matrices. furthermore, its performances are confirmed by several computer simulations

    利用四階累積量，第五章首先給出了一種載頻已知的情況下基於近場源的距離和波達方向聯合估計演算法，通過構造的陣列輸出信號四階累量矩陣使空間信號到達方向和距離估計無需譜峰搜索，且參數自動配對，適合於任意高斯噪聲環境。進一步在第三節提出了一種載頻未知的情況下的多個近場窄帶信號源doa 、距離和頻率聯合估計的3 - desprit演算法。
  18. Almost any piece of information available at the time of interaction can be seen as context information : identity, spatial information ( e. g., location, orientation, speed and acceleration ), temporal information ( e. g., time of the day, date, and season of the year ), environmental information ( e. g., temperature, air quality, and light or noise level ), social situation ( e. g., who are you with, and people that are nearby ), resources that are nearby ( e. g., accessible devices, and hosts ), availability of resources ( e. g., battery, display, network, and bandwidth ), physiological measurements ( e. g., blood pressure, hart rate, respiration rate, muscle activity, and tone of voice ), activity ( e. g., talking, walking, and running ), schedules and agenda settings

    幾乎任何在交互時可用的信息都能被看作環境信息：標識，空間信息（例如：位置，朝向，速度和加速度） ，時間信息（例如：某天的時間，日期，某年的季節） ，環境信息（例如：溫度，空氣質量，光或噪音的級別） ，附近的資源（例如：可訪問的設備，主機） ，可用的資源（例如：電池，顯示，網路和帶寬） ，生理度量（例如：血壓，心率，呼吸頻率，肌肉活動，語調） ，活動（例如：談話，行走，和奔跑） ，日程和內容設定。
  19. Almost any information available at the time of interaction can be seen as context information : identity, spatial information ( e. g., location, orientation, speed and acceleration ), temporal information ( e. g., time of the day, date, and season of the year ), environmental information ( e. g., temperature, air quality, and light or noise level ), social situation ( e. g., who are you with, and people that are nearby ), resources that are nearby ( e. g., accessible devices, and hosts ), availability of resources ( e. g., battery, display, network, and bandwidth ), physiological measurements ( e. g., blood pressure, heart rate, respiration rate, muscle activity, and tone of voice ), activity ( e. g., talking, walking, and running ), schedules and agenda settings

    幾乎任何在交互過程中可用的信息都能被視為環境信息：標識，空間信息（例如：位置，朝向，速度和加速度） ，時間信息（如：某天的時間，日期和某年的季節） ，環境信息（例如：溫度，空氣質量，光或噪音的級別） ，社交狀態（如：同你一起的人，在附近的人） ，附近的資源（如：可訪問的設備，住所） ，資源的可用性（如：電池，顯示，網路和帶寬） ，生理讀數（如：血壓，心律，呼吸律，肌肉活動，語調） ，活動（如：談話，走動，奔跑） ，計劃和安排。
  20. The development of science and technology journal is limited obviously by its circumstance such as region, contribution, reader, etc. under the influence of these conditions, the confined mind and the unenterprise attitude is produced by editors. thus, the weak link of developing science and technology journal is showed conspicuously in blazing new trails of content, expanding circulation, and founding famous brand. for expanding the developing space of science and technology journal, some effective measures should be adopted. first, the content and quality of journal should be highly valued. the constantly bring forth new ideas in the content should be promoted by publishing original theses, supporting new subject, introducing new direction, creating characteristic column, etc. by means of these methods, the aim of spreading original achievement, starting new fields of scientific research can be achieved. so academic standard and effect of the journal can be improved. second, the operate mechanism of journal as a processing workshop should be changed. the varied methods should be adopted for selling, circulating and information feedback of journal. third, the reputation of the journal should be safeguarded by correcting ideology of publish. the resources of the journal should be rationally used and developed. it can promote the science and technology journal growing continued

    科技期刊的發展受到地域、稿源、讀者等環境因素的制約.受其影響，編輯易產生封閉、不思進取的心態，使科技期刊在內容創新、擴大流通、創立品牌等方面突現出薄弱環節.為拓展科技期刊的發展空間，首先應抓內容和質量，通過刊發創新論文、扶持創新學科、引進創新方向、創辦特色欄目促進科技期刊內容創新，以傳播創新成果，開辟創新領域，提高期刊的學術水平，擴大影響力;其次，應改變純粹的生產單位、加工車間的運作機制，採用多種局道、多種方法加強科技期刊出版后的營銷、流通及信息反饋等工作，走出重生產、輕開發、輕流通的誤區，擴大影響面;第三，應端正出版理念，維護刊物的聲譽，合理利用、充分拓展科技期刊的品牌資源，促進科技期刊的可持續發展
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