波成臺地 的英文怎麼說
中文拼音 [bōchéngtáide]
波成臺地
英文
wave-built terrace-
So the realization of target detection on the condition of moving platform becomes one of the key techniques which must be solved in the development of hf sswothr
因此，如何實現在平臺運動條件下的目標檢測，就成了研製高頻地波艦載oth雷達必須解決的重要關鍵技術之一。The novel vertical carrier - free linear cluster system phoebus for the economical deposition of amorphous and microcrystalline silicon light absorbers by pecvd ideally combines the strengths of proven vacuum production platforms to precisely focus on the needs of solar cell producers : process stability, productivity, yield, footprint, costs of ownership
新的立式無載體線團系統」菲波斯」 （ phoebus ） ，以pecvd方法經濟地鍍膜無定形的和微晶硅吸光體，理想地結合各種證明可靠的真空生產平臺的優點來精確的聚焦于滿足太陽能電池生產者的需求:工藝的穩定性，生產效率，合格產量率，佔地面積和擁有運營的總成本The conventional sphere model of earth and circle model of orbit are discarded, and the ellipsoid model and the ellipse model are selected for further research, which achieves a method to determine the target position through the antenna pointing direction. and the spaceborne sar system design and simulation software is brought forth. this software accomplishes sar system coefficients design for antenna area, pulse repetition frequency, signal bandwidth, downlink data rate, radar transmitter power and satellite platform yaw steering
本文從星載雷達的星地幾何關系入手，舍棄傳統星載合成孔徑雷達研究中的球地球模型和圓軌道模型，研究了在地球橢球模型和橢圓軌道模型下由雷達天線確定目標坐標的方法，並在此基礎上研製了星載合成孔徑雷達系統設計與模擬軟體，完成雷達系統天線尺寸、脈沖重復頻率、信號帶寬、雷達信號數據率、雷達發射功率、衛星平臺的偏航牽引等幾個方面的系統參數設計以及雷達多普勒特性、雷達系統模糊、雷達定位及精度的分析，最後完成雷達回波信號的模擬。An experimental setup has been designed and built up through a collaboration program between cryogenics laboratory in zhejiang university and limsi - cnrs ( france ). the system employs the inherently reversible stirling cycle, and then its thermodynamic efficiency can easily surpass that of standing - wave system and is even comparable to that of the traditional internal combustion engines
在充分理解工作機理的基礎上，與法國國家科研中心limsi實驗室合作，設計並建成一臺行波型熱聲驅動器實驗裝置，進行了初步實驗，以氨氣和氮氣為工質，成功地獲得了頻率分別為66hz和23hz的熱聲振蕩。Also a prototype for the boost two - level converter is built. the experimental results show that the boost tl converter has lower input current harmonics than the boost two - level converter, and it can satisfy the limits specified in rtca do - 160d. so the boost tl converter has the potential to apply in the future variable frequency ac airborne system ranged from 360hz to 800hz
並完成一臺boostpfc變換器進行實驗對比，實驗結果表明，相比于boostpfc變換器， boosttlpfc變換器能有效地減小電流諧波使其滿足相應的諧波標準rtcado - 160d ，所以它適合於即將採用360hz - 800hz變頻交流供電體制的航空電網。In practical studies, finally, a hybrid active power filter based on the digital signal processor ( dsp ) and intelligent power module ( ipm ) was set up, including a cycloconverter acem. based on the experimental set - up, plenty of experimental studies were conducted. the experimental results demonstrate that the self - adaptive technique, the topology of series connected hybrid power filter and the corresponding significant technologies described above are feasible and practical
最後，實際研製了一套以dsp （高速數字信號處理器）和ipm （智能功率模塊）為核心的小功率混合型有源濾波裝置，在交交變頻acem實驗平臺上進行了全面的實驗研究，充分驗證了本文所提出的自適應同步相關濾波技術、優化混合型濾波器拓撲結構和有關的關鍵性技術的正確性和實用性，從而從理論到實踐全方位、成功地實現了對交流勵磁發電機輸出電力諧波抑制的研究。The constructionspeed of highwayincreases rapidly, at the same time, the path qualityexaminationdutyaggravatesdaybyday, andtheload ofroads evaluationalsoincreases quicklyin the maintenance. traditional method has many disadvantages, such asinefficiency, tiring, slow speed of evaluation etc. especially, the number ofmeasuring point is too little to give accurate and comprehensive result of theinterior recessive diseases of highway. beside this, the traditional method leadsdestructiontotheroadsurface, whichwillexacerbatethedeteriorationofhighway. in avoid not to affecting the normal travel and not to destroying the pavementstructure, it is urgently to apply nondestructive evaluation ( nde ) techniques tocontrol quality of highway construction and to estimate the running conditionaccurately. the nde techniques of highway have to satisfy the followingqualification : mapping the shape, size and depth of flaw precisely ; having nodamages to the road structure ; being capable of carrying out examination in widerange ; beingeasytoequipandoperate ; beinginsulatetotheenvironmentinfluence. theintelligenceintegrationevaluationvehicleforroadbedandpavement ( iievrp ) is just the comprehensive nde technique that can satisfy the demands above, which can implement detection of highway rapidly and nondestructively
作為吉林省科技廳高新技術項目（ 20020331 ） 「路基路面智能集成檢測車」的一個子項，本文在理論的基礎上，結合實驗對探地雷達檢測路面結構層厚度及路基、路面病害進行了研究，主要工作如下: 1 .闡述探地雷達發展的歷史和研究現狀，介紹探地雷達在路面結構層厚度檢測與路基、路面病害識別上的應用，分析探地雷達設備性能，探討其測量參數對探測性能的影響; 2 .引入matlab計算軟體，利用其中的小波分析工具箱對探地雷達信號進行分析處理; 3 .構建適于道路檢測的車載實驗平臺，為進一步完善路基路面檢測車系統打下了基礎; 4 .通過對模型的檢測，對探地雷達探測性能做出定性或半定量的評價; 5 .通過對實際路面的檢測，驗證探地雷達在道路檢測中的有效性。Using the microwave selective heating property for materials, by setup equivalent equation, and first time inducing the electromagnetic field perturbation theory to the design of heating materials for substrate in mpcvd, three temperature distribution modes were established, including temperature distribution comprehensive mode of inhomogeneous plasma, temperature distribution composite mode of composite substrate materials, temperature distribution perturbation mode of composite materials, which ii provided an whole new technology route to the design of substrate heating system in mpcvd and guided the preparation of heating materials for substrate. and then the heating materials for substrate were designed and optimized to obtain large area homogeneous temperature distribution even larger than substrate holder ' s diameter. as an important part, this thesis researched the nucleation and growth of diamond films in mpcvd, systematically researched the effects of substrate pretreatment, methane concentration, deposition pressure and substrate temperature etc experimental technologic parameters on diamond films " quality on ( 100 ) single crystal silicon substrate in the process of mpcvd, characterized the films qualities in laser raman spectra ( raman ), x - ray diffraction ( xrd ), scanning electron microscopy ( sem ), infrared transmission spectra ( ir ), atomic force microscopy ( afm ), determined the optimum parameters for mpcvd high quality diamond in the mpcvd - 4 mode system
該系統可通過沉積參數的精確控制，以控制沉積過程，減少金剛石膜生長過程中的缺陷，並採用光纖光譜儀檢測分析等離子體的可見光光譜以監測微波等離體化學氣相沉積過程；利用微波對材料的選擇加熱特性，通過構造等效方程，並首次將電磁場攝動理論引入到mpcvd的基片加熱材料的設計中，建立了非均勻等離子體溫度場綜合模型、復合介質基片材料的復合溫度場模型及復合介質材料溫度場攝動模型，為mpcvd的基片加熱系統設計提供了一條全新的技術路線以指導基片加熱材料的制備，並對基片加熱材料進行了設計和優選，以獲取大面積均勻的溫度場區，甚至獲得大於基片臺尺寸的均勻溫度區；作為研究重點之一，開展了微波等離體化學氣相沉積金剛石的成核與生長研究，系統地研究了在（ 100 ）單晶硅基片上mpcvd沉積金剛石膜的實驗過程中，基片預處理、甲烷濃度、沉積氣壓、基體溫度等不同實驗工藝參數對金剛石薄膜質量的影響，分別用raman光譜、 x射線衍射（ xrd ） 、掃描電鏡（ sem ） 、紅外透射光譜（ ir ） 、原子力顯微鏡（ afm ）對薄膜進行了表徵，確立了該系統上mpcvd金剛石膜的最佳的實驗工藝參數。Frequency modulated continuous wave synthetic aperture radar ( fm - cw sar ) can be miniaturized, and it is fit for light - duty flight platform wonderfully
調頻連續波合成孔徑雷達可以實現小型化，能非常好地滿足輕型飛行平臺對成像設備的要求。Based on development platform and the software designing, we develop a self - governed and perfect database system for surface wave tomography in china and its adjacent land and sea areas. this database system is helpful and important for probing into the deep earth, the form and evolvement of lithosphere / asthenosphere, the form and evolvement and the relation of surface structure and deep structure of chinese continent
為對這些海量數據進行合理有效管理，作者採用發展較成熟的開發平臺和軟體設計方法，開發一個獨立、功能完善的「中國及相鄰陸域海域面波層析成像數據庫系統」 ，對研究地球深部過程，對了解中國及鄰區邊緣海巖石圈軟流圈形成及演化，了解中國大陸形成及演化以及地表構造與深部結構的關系都具有極大幫助和重要的意義。As you know, if you ' ve got tivo or any digital video recorder ( dvr ), the machine tracks your viewing preferences, scans the airwaves to find programs you might like, and records them - - all by its little lonesome
正如你所知道的，如果你有一臺電視節目錄制器或任何其它數字視頻錄像機，它會追隨你的喜好，掃描電波來發現你可能喜歡的節目，並錄制下來- -所有這一切都是它孤獨地完成。The space observation in soft x - ray and extreme ultraviolet ( euv ) region is an important portion of the space astronomy and an effective solar observation method developed increasingly. in this thesis we designed a euv multi spectrum space solar telescope ( eut ) based on the requirement of high angular resolution and wide field of view for solar observations ; investigated the transmission performance of eut ; invented a method of eut pointing calibration on the space orbit and solved the high precision pointing calibration problems ; constructed a prototype of 17. 1nm telescope, tested the possibility of eut design, and developed some cutting - edge techniques
本文根據空間平臺上高解析度對日觀測的需要，設計出一種可以在四個極紫外波段對日同時成像多光譜太陽望遠鏡（ eut ） ；研究了極紫外（ euv ）波段太陽望遠鏡光學傳輸特性；提出了真空紫外波段在軌指向的標定方法，解決了高精度指向標定問題；研製出一臺17 . 1nm望遠鏡的地面樣機，驗證eut設計的可行性，攻克了部分關鍵的技術難關；為進一步的研究工作奠定了基礎。Using rs can rapidly finish the ecological investigation in different scales and analysis the ecological environment information in different period that it " s difficulty with general investigation, with its characters of multiplatform, multiband, multitemporal and its macroscopic and integrality. and when collecting, saving, drawing, changing, showing and analyzing the huge spatial data, the cis act the very important function as a very effective computer tool
遙感技術以其多平臺、多波段、多時相宏觀綜合的特點，能便捷地完成常規方法很難實現的大、中尺度的生態調查研究和進行不同時期的生態環境信息的對比分析；地理信息系統作為一個極為有效的計算機工具，則在收集、存儲、提取、轉換、顯示和分析這些容量龐大的空間數據時起到了非常重要的作用。7. mainland residents from guangdong province and 28 cities, including shanghai, beijing, nanjing, suzhou, wuxi, hangzhou, ningbo, taizhou, fuzhou, xiamen, quanzhou, tianjin, chongqing, chengdu, jinan, shenyang, dalian, nanchang, changsha, nanning, haikou, guiyang, kunming, shijiazhuang, zhengzhou, changchun, hefei and wuhan who wish to come here for sightseeing purpose in individual capacity are required to obtain an exit - entry permit for travelling to and from hong kong and macau and an " endorsement for individual visit geren luyou " valid for single or double - journey from the relevant public security bureau office
7 .內地廣東省及28個城市（即是上海、北京、南京、蘇州、無錫、杭州、寧波、臺州、福州、廈門、泉州、天津、重慶、成都、濟南、瀋陽、大連、南昌、長沙、南寧、海口、貴陽、昆明、石家莊、鄭州、長春、合肥和武漢）的居民，如欲以個人身份來港觀光旅遊，必須取得由內地有關公安機關所簽發的《往來港澳通行證》和可供一次或兩次有效的個人旅遊簽注。Total 18 simulated acceleration time histories for intensity 6, 7, 8 and 9 are adopted as inputs, 6 typical retaining walls heights and 2 bridge abutments with difference are selected as the structural models of soil - structure system, the seismic responses of the system and the horizontal variation of the maximum response accelerations at different height levels are analyzed by means of a wave propagation finite element program
選用針對地震烈度6 、 7 、 8 、 9合成的總共18條地震動時程，選取具有代表性的6個不同高度的擋土墻以及2個不同高度的橋臺模型，利用波動有限元法既有程序分析地震反應，研究水平地震加速度沿高度的分佈規律。Forth, discusses the process of forming industrialization platform of block construction residential building system, inquires into the development mode of the modernization of housing industry demonstration base and block construction residential building system industry group, using m ? porter " s theory of clusters of enterprises, illustrates the increasing r & d invest of block construction residential building system industry, and constitutes the system of techniques innovation problem
第四，本文論述了中國砌塊住宅建築體系產業化平臺的形成過程，運用邁可爾?波特的企業集群理論，探討了住宅產業示範基地和砌塊產業集團的發展模式，論述了加大砌塊產業r & o投入和建立技術創新機制問題。In cellular envirorunents, because of the influence of several adverse factors, such as muitipath, non - line - of sight propagation, noise, interference and channel frequency characteristics, radio statistics measuremenis like tdoa, toa and aoa related to mobile position, the performance of location algorithms mny be significantly degraded and the position estimation of ms is inevitably biased
在蜂窩網路環境中，由於受多徑、非視距傳播、噪聲、干擾和通道頻率特性等多種不利因素的綜合影響，使tdoa 、 toa 、 aoa等與移動臺位置有關的電波特徵測量值不可避免地出現較大誤差，從而使各種定位演算法的性能顯著下降，造成移動臺位置估計出現較大偏差。The third chapter first describes the operating mechanism of private funds, then focuses on practical methods to control the risks involved. comparatively speaking, china ' s private funds do n ' t have as many investment tools as their foreign counterparts and they mainly operate in the secondary stock market. as a result, the risks private funds confront are tremendous : private funds in china have no legal status, which indicates that the fund contract ca n ' t get proper legal protection ; the stock market has been far from perfect so that private funds have inadequate instruments to avoid risks ; the listed companies participating in private funds are vulnerable to risks ; private funds investors also confront the risks of unexpected policy change
我國的私募基金與國外相比，運作方式較為單一，主要在二級市場操作，大部分依靠作大成交量，獲取券商返還傭金來獲取收益，以跟莊、鎖倉、聯合坐莊為主要投資策略，以中線持股、波段炒作為主要戰術，這就決定了我國私募基金面臨著巨大的風險：我國私募基金沒有合法地位，基金契約合同不受法律保護；證券市場品種單一，沒有避空機制，期權、期貨等金融衍生工具甚至根本不存在；上市公司參與私募基金引致巨大風險；由於目前國家對私募基金的立法沒有正式出臺，投資者還面臨著政策調整的風險。During the ceremony, mr. c y lam, director of the hong kong observatory, recalled that the gathering of meteorological observational data from the mainland relied upon the reception of short wave radio broadcast by mtc colleagues. the morse code broadcasts were skillfully decoded into textual messages, and which were kept in good conditions
天文臺臺長林超英于會上憶述：從前接收中國內地氣象觀測數據，是依靠氣象電信中心同事細心收聽短波無線電廣播，把資料從摩斯電碼morse code一一編譯成文字報文，並完好的保存下來。This essay will introduce what has been done by the author in the development of the system, including choosing video velocity measurement + character recognition algorithm based on wavelet transform + dsp as the system solution ; development of vehicle accurate position calculation algorithm for video velocity measurement and filed test ; development of fast character recognition algorithm based on wavelet transform for dsp platform and performance test ; transplanting the fast character recognition algorithm from industrial control computer to dsp platform and performance test
本論文介紹的作者在開發本系統中所做的一些工作，包括選定系統採用視頻測速+小波變換字元識別+ dsp的方案；開發了視頻測速所用的車輛精確定位演算法並進行了實地測試；開發了適用於dsp平臺的基於小波變換的字元識別快速演算法並進行了性能測試；將系統核心部分的字元識別快速演算法成功移植到dsp平臺並進行了性能測試。分享友人