航天數學 的英文怎麼說
中文拼音 [hángtiānshǔxué]
航天數學
英文
astronautical mathematics-
The benefit of this cooperation has been that archaeoastronomy has expanded to include the interrelated interests in ancient and native calendar systems, concepts of time and space, mathematics, counting systems and geometry, surveying and navigational techniques as well as geomancy - dowsing - and the origins of urban planning
該合作的好處就是考古天文學已經擴展了包括古代和本土日歷系統、時間空間概念、數學、計算系統和幾何學、測量和航海技術以及泥土占卜相關的興趣-探尋水源和礦藏-和城市規劃的由來。Scientists at nasa ' s jet propul - sion laboratory in pasadena, california, collected the data using the facility ' s goldstone solar system radar
該數據是利用美國國家航空航天局噴氣推進實驗室的金石太陽系雷達收集的，月球南極的地形比科學家們之前預想的要更加崎嶇不平。The resolving scheme on the data centralized backup in the library of nanjing university of aeronautics and astronautics
南京航空航天大學圖書館數據集中備份解決方案Strength is that an astronaut carries on the foundation of the hand movement industry outside the cabin, so the strength of different position of rival carries on comparatively detailed research, offer the basic data for the fact that body mechanies, hand movement ' s industry ergonomy, glove of the hand are made and the task is planned etc., until spaceflight take people of glove for cabin - the tired appraisal of systematic homework of the glove offers the feasible method
力量是航天員進行艙外手動作業的基礎，因此需要對手部不同部位的力量進行較為詳細的研究，為手部的人體力學、手動作業工效學、手套製作和任務規劃等提供基礎數據，以便為艙外航天服手套的人?手套系統作業疲勞評價提供可行的方法。Abstract : bridge function and generalized bridge function are all three - valued function, and are made by initial sequence according as copied or shifted ways. they include some familiar orthogonal function of non - sine, such as walsh function. this paper briefly introduced some research advance on this subject, emphasized to introduce the copy theory and generalized copy method. the process of making ( generalized ) bridge function, its property and application, were introduced briefly
文摘:橋函數和廣義橋函數均為三值函數系，都是將初始序列經復制方式和移位方式變換后而形成的.它們包括了一些常見的非正弦正交函數，如沃爾什函數和方波函數等.簡要介紹了近10年來北京航空航天大學通信與電子系統博士點在非正弦正交函數方面研究的一些新進展，重點介紹了復制理論和廣義復制方法，橋函數、廣義橋函數的復制生成方法、性質及其應用等專題Using data obtained by the omega spectrometer on board european space agency ' s mars express, the team found the existence of ice clouds which sometimes become so dense that they throw quite dark shadows on the dusty surface of the planet
根據歐洲航天局「火星快車」探測器上裝備的omega光譜儀獲取的數據，該科學家小組發現，由於火星上空的乾冰雲有時很密集，所以會在覆蓋著很多塵埃的火星表面投下陰影。Di - on electrics service and products cover the power electric field including power generation transmission distribution, power equipment manufacturing, subway, utilites, ac dc metrology field as well, more than 500 units of electric power utilities and stations such as beijing power supply bureau, guangzhou power supply bureau, baosteel, three gorges power station and more manufacturers like siemens, abb, alstom, bicc, pirelii, toshiba and more and 30 units of metrology institutes in china like nim, tsinghua university and more are our user. di - on electric is sole and exclusive distributor for numerous famous companies like transinor doble norway, measurements international canada, ndb canada, schuetz germany, aan germany, dr. strauss germany and etc, taking care of their business and service in p. r. china including hongkong
絕大多數員工擁有本科和研究生以上學歷，在電力系統和計量系統工作多年，從事電力檢測帶電監測和計量測試儀器的技術服務和市場銷售工作長達10年以上，為約500多家電力工業系統的發供電部門如北京供電局，廣州電力局，深圳供電局，三峽電廠，廣州抽水蓄能電廠，田灣核電站等等，科研調試部門如廣東省電力試驗研究所，湖北省電力試驗研究所等等與設備生產廠如siemens ， abb ， alstom ， toshiba等等提供了國際最先進可靠的測試技術和儀器設備為約30多家國內二級以上相關計量科研院所，包括國家計量院，清華大學，中國運載火箭研究院，空間技術研究院，航天二院，成飛，西飛和各省市計量院，電力試驗研究院所等提供了大量最先進可靠的計量檢測儀器。In order to investigate the unsteady flow frequency domain performances of an axial flow compressor at different mass flow, rotating speed and blade row spacing, plus inlet flow distortion, and considering aerodynamic characteristics and stability of the compressor, the low speed research compressor ( lsc ) at college of energy and power in nuaa is used to carry out the experiment studies. a large amount of test data has been gained through dynamic pressure transducers embedded in the stator blades at the tip, middle and hub section, then fast fourier transform algorithm ( fft ) is applied to calculate the frequency data
為探討軸流壓氣機在工作流量、工作轉速及動?靜葉排軸向間距變化時的葉片排流場非定常頻譜特性變化規律，並耦合進氣畸變的影響，同時與壓氣機氣動性能和氣動穩定性相關聯，作者利用南京航空航天大學能源與動力學院的低速大尺寸軸流壓氣機（ lsc ）試驗器，採取在靜子葉片表面埋入動態壓力傳感器的實驗方法，對葉尖、葉中和葉根三個截面的動態壓力進行了測量，獲得了大量的可靠的實驗數據。This subject belongs to three - dimensional layout problems with behavioral constraints theoretically and concerns the knowledge of spacecraft design, mechanical engineering, computer science, mathematics, mechanics and system engineering. so it can be ascribed as the frontier fundamental and applied research of cross - discipline subject with np complexity theoretically. in term of engineering practice, this subject has extensive applications, such as layout design of spacecraft module, engineering machinery, submarine and shipping, tank, under - water suspension engineering, platform of marine drilling well, bullet train, multiple spindle box of machine tool, robot
該課題在理論上，屬帶性能約束的三維布局問題，涉及航天器設計、機械工程、計算機、數學、力學和系統工程等學科，為交叉學科前沿課題的基礎理論和應用基礎研究，具有np難度；在實踐上，具有廣泛的工程應用背景，如航天器艙、工程機械、潛艇、船舶、坦克、水下懸浮工程、海上鉆井平臺、高速列車、組合機床多軸箱、機器人等的布局方案設計問題。After being more consummated, the fruits of this project can be straightly applied to manned spacecraft, space scientific exploration, networks of satellites and so on. they will certainly improve the reliability, reconfigurability and obsm ( on - board software maintenance ) of on - board computers, which is most significant to the development of our country ' s space science and technology
本設計的成果經進一步完善以後可以直接應用於我國載人航天、空間探測、衛星組網等任務中去，勢必提高我國航天計算機的可靠性、可重構性以及在軌數據處理的能力，對推動我國空間科學技術的發展有很大的意義。By means of the orbit dynamics theory and other knowledge, author established mathematical model related to collision forecast, including space object orbit confirming model, space objects relative movement model, dangerous object distinguishing model and space object collision geometry relation model, etc. according to the mathematic model, author calculated the relative distance transformation rule along with time between the spacecraft and dangerous debris and established early warning rule
依據航天動力學理論和其他知識，建立了碰撞預警相關的數學模型，包括空間目標軌道確定數學模型、空間物體相對運動數學模型、危險物體判定準則數學模型和空間物體碰撞幾何關系數學模型等，根據數學模型計算航天器和危險目標的相對距離隨時間變化規律，設定了預警規則。Finite element method is a popular numerical analysis method, which is widely applied in many industrial fields such as aviation, architecture, mechanics, electronics and chemistry
有限元方法是一種求解連續介質力學問題的通用數值方法。它廣泛應用於航空航天、船舶、土木水利、機械、石油、電子等工業領域。It plays a very important role in many application, according to the point of mathematics point, its mostly application originate from equations of mathematical physics, difference equations, markov process, and so on, its purpose is to solve the problems of solid, fluid, electromagnetic, microscopic particles, system control, and etc. in practical science research and engineer applications, such as, architecture project, research of aeronautics and astronautics, bioscience, computing physics and oil reconnoiter, many large scale generalized eigenvalue problems need to be solved
它在很多應用中扮演非常重要的角色，從數學角度來看，矩陣特徵值問題的應用大多來自數學物理方程、差分方程、 markov過程等。目的是為了計算固體、流體、電磁、微觀粒子、系統控制等重大問題。在實際的科學研究與工程應用中，比如在建築工程、航空航天研究、生物科學、計算物理以及石油勘探中，都要涉及到大規模矩陣廣義特徵值問題的計算。On sunday, several hundred engineers and scientists will gather at the jet propulsion laboratory in pasadena, calif., and await the end of the galileo spacecraft in a suicide plunge into jupiter ' s dense atmosphere
周日，數百名工程師和科學家，將聚集在加利福尼亞州的帕沙德納的噴氣推進實驗室，靜候伽利略號航天飛機自殺性插入木星周圍稠密大氣層的結局。The relation of tthe ccd sensor imaging resolution and the mtf is gotten. when the mtf of space remote sensing camera is higher and the contrast of object is higher, it can be believed that the resolution of ccd sensor imaging is 1. 6 times of the pixel dimension, in the mean while the mtf decreases 32 %
通過模擬得到了ccd探測器的目標影像的分辨力與ccd像元尺寸的關系，當航天光學遙感相機的mtf較高（模擬中鏡頭的mtf = 1 ）且目標為高對比度時，得到ccd探測器的目標影像分辨力是其像元尺寸a的1 . 6倍，其光學調制度傳遞函數mtf下降32的結果。Prometheus learned 5 ) mathematics, 6 ) navigation, 7 ) medicine, 8 ) architecture, and 9 ) asonomy from the goddess of 10 ) wisdom, athena, and taught these sciences to people
普羅米修斯向智慧女神雅典娜學習數學、航海、醫藥、建築和天文學，並將這些學問傳授給人們。The experimental results of two - phase flow and electric performance reveal the two - phase flow characteristics, the rule of bubble growing and breaking away and the effect of the gravity factor on cell performance. the work provided dependable scientific data and guidance for the application of the proton exchange membrane fuel cell in the aerospace realm. the main work and results of the study are presented as follows : 1
實驗得到了微重力條件下直接甲醇燃料電池內部伴有電化學反應的氣液兩相流動圖像和相應電性能等實驗數據，揭示出了伴有化學反應的氣液兩相流特點、氣泡生長與脫離規律以及重力因素對燃料電池性能的影響規律，為質子交換膜燃料電池在航天領域的應用提供了可靠的科學數據和設計與運控指導。Aerospace series - elements of electrical and optical connection - test methods - part 704 : electrical elements - measurement of turns ratio on a transformer used in a coupler
航空航天系列.電氣及光學連接元件.試驗方法.第704部分:電氣元件.耦合器用變壓器的匝數比測量In this paper, a mathematic model is structured for a special part, and a fw pattern is designed based on the model. this pattern is simulated by computer
本文對航天特異零件建立了數學模型，並在此基礎上進行了纖維纏繞的線型設計以及線型的計算機模擬。Stzware is a two and three dimension spatial analysis software based on realms math model developed by nuaa, and the two - dimension subset of this software defines spatial data types on 2 - dimension discrete grid, such as point set ( privpoints ), line set ( privlines ) and region set ( privregions ), and implements attribute operation functions of these 3 types and topology analysis functions among these 3 types
Stzware是由南京航空航天大學研製的基於數學模型realms的二三維空間分析軟體，其中的二維子集定義了二維平面離散網格上的空間數據類型:點集（ privpoints ） 、線集（ privlines ）和區域集（ privregions ） ，並實現了這三種類型的屬性操作函數和這三種類型間的拓撲分析函數。分享友人