通變系統 的英文怎麼說
中文拼音 [tōngbiànxìtǒng]
通變系統
英文
diasystem-
Using the multi - configuration dirac - fock method ( mcdf ), we studied the characteristic of the decay processes of the 4d core excited states of csiv, the low - lying excitation structure of super - heavy element bohrium ( z = 107 ) and the x - ray spectra of the 3d - 4f transitions of highly charged xenon ions in details in this work, by including the electron correlation and the relaxation effects systematically
本論文運用mcdf方法,通過系統考慮電子相關效應和馳豫效應,分別研究了cs離子的4d內殼層激發態衰變動力學特性,超重元素bh ( z = 107 )的低激發態結構以及高離化態氙離子的3d - 4f躍遷產生的x射線譜的結構等問題。In response to media questions, dr yeoh reiterated that ha s three - colour response system was intended for internal communication and in fact it formed part of the government s overall response system on sars
楊醫生在回應傳媒提問時重申,醫管局的紅黃綠三色警示系統主要為內部溝通之用,事實上,醫管局的系統正是政府防禦沙士三級應變系統的組成部分。Abstract : by means of the comparison and analysis to applications of convertional starter and frequency conversion governor inmine exhauster, a useful and practicable electricity - saving pathof exhaust system was found out, so improving systematic saving operation
摘要:通過對傳統起動器和變頻調速器在礦井抽風機的應用進行比較分析,找出一種抽風系統有效、可行的節電途徑,以實現通風系統的經濟運行。The results illustrate that in the driven magnetic reconnection process generated by the dawn - dusk electric field in the magnetotail, the transportation of magnetic helicity flux via the boundaries of the system is the direct cause of the change of the total magnetic helicity in the system
研究表明,對于由晨昏電場?生的磁尾驅動重聯過程,通過系統邊界輸運的磁螺度通量是引起系統總磁螺度變化的直接原因。2. because lightwave systems commonly use fibers with randomly varying birefringence, it is important to study how optical pulses are affected by random birefringence changes
二、由於在一般光通信系統中,所採用的光纖的雙折射都是隨機變化的,因此研究光脈沖如何受光纖隨機雙折射變化的影響就變得十分重要。Trying to measure what is happening with a scope or other instument is also problematical, because the instrument cables and input characteristics modify the network characteristics by their very presence when connected
試圖用測量儀或其他工具測試此時的系統變化也不太行得通,因為一旦儀器接入系統,它的測試線和輸入特性會改變系統電路的特徵。Chapter 4 time - dependent computational simulation of the response of cable - suspension feed system in gusty wind based on the time - independent structure finite element method, and with consideration of the movement laws of cabin, a 3 - d time - dependent structure finite element model formulated by a new method named iss method ( instantaneous structure supposition method ) to deal with the vibration response of cable - suspension feed system in gusty wind is presented. in the model, all sources of geometric non - linearity, cable sag and changes of cable geometry due to large displacement, are fully considered
基於時不變結構的有限單元法,在綜合考慮饋源艙運動規律的基礎上,提出了時變系統的瞬時結構假定法,通過將懸索離散為索桿單元,建立了系統的時變有限元模型,該模型充分考慮了懸索的垂度和大變形等幾何非線性因素,應用ne 。( c ) propose the scheme to implementing the coder and deoder of optical time - spreading / frequency - hopping, by assigning two orthogonal codes for one user and using these two codes to encoding 1 and 0 respectively, differential detection can be adopted. not only improves system performances in ber, but also resists the interference such as mai, and does n ' t need any control devices to evaluate the optimum decisive threshold
通過給每個用戶指定互相關為0的兩個地址碼分別發送1和0信號以及在接收端採用差分檢測技術,避免了ook (開關鍵控)光通信系統中0不發送光脈沖和ook常規檢測方式下最佳判決門限必須根椐用戶數等外界環境而改變,從而提高了系統性能和降低了系統的復雜度。Fir ( finite impulse response ) filter is one of the basic algorithms for digital signal processing, which is a kind of important lti discrete - time system, widely used in acoustic processing and image processing area
Fir ( finiteimpulseresponse )濾波器是數字信號處理的基本演算法之一,是一類較為重要的線性時不變系統,廣泛應用於聲音、圖像處理等現代通信技術中。The test obsvervation include air temperature, ground temperature, foundation moisture, freeze depth, freeze capicity, freeze residual capicity, groundwater table and shape transform of canal lining, etc. throught systemic observation, analysis of impact about each factor on fundation freeze capicity, evaluate effect on anti freeze of various canal lining, comparison on technology and ecnomic of different method, a kind of main canal lining format is been recommended to engineering practice with siutable to ningxia local feature, fufilling the need of main canal safey i application, economic and practical, that is using polystyrene plate laying under concrete slate and grit taking replace of filling layer and optimizing design
試驗觀測內容包括氣溫、地溫、基土含水量、凍深、凍脹量、凍脹剩餘量、地下水位和砌體外觀變化等項目。通過系統的觀測,分析各因素對基土凍脹量的影響,評價各種襯砌型式的防凍西安理工大學工程碩士專業學位論文脹效果,並進行技術和經濟綜合分析比較,推薦出了適合我區特點、滿足乾渠安全運行、經濟實用、防凍脹效果好的乾渠防滲襯砌型式,即混凝土板下鋪設聚苯乙烯板和砂礫石換填層結構型式,加以優化設計,用於工程實踐。Evolvement of ventilation system of houzhuang mine area
侯莊礦區通風系統的演變The future wireless mobile communication systems are expected to provide ubiquitous, high - quality, and high - rate mobile multimedia transmission. however, hostile multipath fading radio conditions give rise to serious inter - symbol interference ( isi ) ; even worse, wireless channel are often time varying, which makes the system more vulnerable and more difficult to track the channel state. orthogonal frequency dvision multiplexing ( ofdm ), which is inherently resistant against isi, has invoked a popular research interest in recent years, and has been a promising candidate technology of the physical layer for future weideband high - date - rate wireless communications. notwithstanding, ofdm is much more vulnerable to errors of both time and frequency synchronization and to that of channel estimation, and how to obtain correct timing and channel estimation efficiently is highly critical to ofdm systems. the dissertation will focus on both of the aspects of ofdm systems mentioned above
但是無線環境的多徑特性造成通信系統中嚴重的符號間干擾,同時無線通道的時變性使得通道特性跟蹤復雜。而正交頻分復用技術( orthogonalfrequencydivisionmultiplexing , ofdm )正是一種解決符號間干擾的有效傳輸手段,因此ofdm技術作為未來寬帶高速率無線通信的物理層候選技術在當前引起了一股研究熱潮。但ofdm系統對定時同步誤差和通道估計誤差非常敏感,如何在ofdm系統中準確快速地實現符號同步和通道估計是至關重要的,本論文將重點針對這兩個問題進行討論。The hydropower station has occupied the very important position in improving chinese energy sources construction, and with the increase of the size of the hydropower plant, its ventilation and air conditioning systems will be more complex
水電站地下洞室群在通風時,是一個由交通洞、廠房、母線洞、主變洞、出線道、進風洞、排風洞等洞室以及各專門布設的送排風管道系統組成的通風系統。Article 7 in the event of a natural disaster or emergency, the regulatory agencies may direct system operators to stop transmitting programs or designate specific programs or messages to be transmitted, in order to safeguard public safety and welfare
第7條(天然災害或緊急事故之應變)遇有天然災害或緊急事故時,主管機關為維護公共安全與公眾福利,得通知系統經營者停止播送節目,或指定其播送特定之節目或訊息。The company has been undertaking projects such as power delivery and distribution system for alternating currents of 110 kv and below, smart architecture system, channel and optical cable laying project for communication system, computer network system, and cable television network,
公司一直從事110kv及以下送變電和配電系統工程、建築智能化系統工程及通訊系統的管道和光纜敷設工程、計算機網路系統工程、有線電視網路、機電安裝與城市道路照明等工程。Then we uses the scheme that has the variable gain based on the kalman filtering model realize two steps phase - locks ring circuit track technology, this kind has the advantage that when changed the gain the digital phase - lock link to be allowed simultaneously to realize the fast capture and the reliable track, the simulation analyzes its capture performance
模擬結果表明,自編碼直擴通信系統的編碼捕獲性能具有可行性。採用基於卡爾曼濾波模型實現具有可變增益的二階鎖相環路的跟蹤技術,這種具有時變增益的數字鎖相環可以同時實現快速捕獲和可靠跟蹤,其捕獲性能要比傳統數字鎖相環改善很多。Avoiding the use of mathematic models, the fuzzy logical control ( flc ) system meets the control demands of the tunnel ventilation process well which is a nonlinear distribution system. but because of its lacking of learning and adaptive ability, many problems has emerged when using flc : the membership functions of the fuzzy variables cannot be changed, the fuzzy logical rules cannot be modified automatically when environmental variables such as traffic model, average exhaust, etc, are changed. for this reason, the paper uses fuzzy neural network control ( fnnc ) system to improve the control process
模糊控制系統避開了數學模型,能很好適應公路隧道通風系統非線性和分散式參數特徵,但是模糊控制系統本身的學習和適應能力差,導致了模糊變量各語言值隸屬函數和控制規則不能隨著環境參數(如交通量、基準排放量等)的改變而自動調整和修改等問題,本文將具有強大學習能力的神經網路融合到模糊控制系統中,研究和探討了隧道通風模糊神經控制方法。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。By researching systematically into the enlargement ' s tremendous impacts on the sub - systems of both parties " political, governance and economic institutions, as well as into the process of institutional changes, adaptations, adjustments and convergence between them, the dissertation analyzes the institutional reforms of both parties resulting from enlargement as well as the major driving force, approaches and interactive means behind them. on the basis of that, the author constructs an experimental theory in a bid to provide some comparison criterion or system of reference for institutional interactions in the eu enlargement process
通過系統研究兩種制度「對撞」給雙方政治權力制度與經濟治理制度各個子系統造成的巨大沖擊力,以及雙方相互調整、相互適應、相互趨同的制度變遷過程,本文分析了歐盟與新成員國因應東擴制度變革壓力而實施的制度變革舉措及其背後主要的驅動力量、互動手段和作用途徑,進而構築起一個實驗性的理論框架,為解釋歐盟東擴進程中的制度互動現象提供了某種參照系統和比照標準。The improvement on conditioning and aeration of double fluids system by atomizing and controlling the air humidity was fully introduced in this paper, as well as solved the shortcomings of high moisture grades between the mirage soaked wind - pipeline and the surface of the grain, and between the superstratum and substrate after conditioning by a serios of managing measures, such as changing the way of ventilation, adjusting the aeration time by controlling the air - humidity of ventilation
摘要詳細論述了雙流體調質通風系統在水汽霧化、空氣濕度控制方面的改進,包括改變送風方式、調整干濕空氣通風時間等管理措施,較好地解決了調質過程中的水霧浸濕風道與糧面、糧堆上下層水分梯度大等的儲糧問題。分享友人