收發單元 的英文怎麼說

中文拼音 [shōudānyuán]
收發單元 英文
adsl
  • : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
  • : 名詞(頭發) hair
  • 收發 : 1 (收進和發出公文) receive and dispatch2 (擔任收發工作的人) dispatcher3 [電學] transmit recei...
  1. The thesis is based on income question, forest coverage rate and grop production. to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan - bei district, and then in view of the fact, seven esential factors which have influence on the project are found out : expense of dam, expense of crop, expense of cash tree, expense of defense tree, other economic crop, expense of grass and graziery ; and the output factors include : income of gdp, pure income per captia, the area of decreasing land loss, graziery income, crop production, income of tree, the totle income of economic crop. after the date of each facts are puted into dea model, unefficiencial decision making units ( dmu ) found. the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure. at the same time, taking into account some possible problems in or after grain for green in shan - bei district, the thesis bring out some propesal to improve the circ umstance, enhance the life level and put the relation of population, resource and circumstance into a healthy orbit

    因此,加快退耕還林還草,調整土地利用結構和產業結構,已成為實現山川秀美工程和可持續展戰略的必經之路。論文以解決陜北地區的入問題,植被問題以及糧食產量問題為出點,首先從理論上分析了包絡分析方法在陜北地區退耕還林(草)中運用的可行性,然後結合陜北地區目前的實際情況,綜合分析出影響陜北地區退耕還林(草)的關鍵的七個因素作為輸入指標:水利水保設施投入,農作物投入,經濟林種支出,防護林支出,其它經濟作物,草類支出,畜牧業投入;以退耕還林所要解決的最終問題作為輸出指標: gdp入、農民人均純入、水土流失減少量、牧業總產值、糧食產量、林業總產值、其他經濟作物總產值。將各指標所對應的數據代入模型后,通過分析求解得出非有效的決策,再運用包絡分析方法的一些基本原理對非有效的決策進行調整,由此所得的數據對陜北地區的實際投入具有很好的指導意義。
  2. Consecutive aphasia patients with a first - ever stroke were admitted to a neurorehabilitation unit 2 to 8 weeks after their event and randomized to 1 of 2 study groups, levodopa plus therapy or placebo plus therapy

    首次作卒中且有失語的患者被入神經康復並隨機分為加用左旋多巴組或安慰劑對照組。
  3. The development of fieldbus technology made lonworks field bus outstanding in all kinds of fieldbus. this paper simply introduces some kinds of common using fieldbus and the important position and influence of lonworks fieldbus in all kinds of fieldbus, carefully describes the technology core of lonworks technology, puts great emphasis on the introduction of the development and design of public security node of intelligent district which adopts computer, communication and control technology, carefully designs the interfaces of hardware circuits. the public security node of intelligent adopts 8031 single chip as its main processor to complete the application program of user, which mainly collects, process and control all kinds of field signal, and neuron chip 3150 as its slave processor to communicate with other nodes on field network, which works under parrel slave a mode

    現場總線技術的展使得lonworks技術脫穎而出,本文簡要介紹了常用的幾種現場總線的概況以及lonworks技術在現場總線技術中的地位和影響,對lonworks技術的技術核心:神經、 lontalk協議、 lonworks器、 lonbuilder及nodebuilder進行詳盡的描述;重點介紹了集先進的計算機技術、通信技術、控制技術為一體的智能小區安防節點的開與研製,對節點硬體電路的各種介面進行了詳盡的設計。本文設計的智能小區安防節點採用片機8031作為主處理器來完成用戶的應用程序,主要負責對各種現場信號進行採集、處理及控制,工作在并行從a方式下的神經mc3150作為從處理器,主要完成與現場網路上的各節點及中心控制室之間的通信工作。
  4. This article puts forward a solution named divide - assemble by deducing the size of bp neural network to overcome entering the local best point, the dividing process is that a big bp neural network is divided into several small bp neural networks, every small bp neural network can study alone, after all small bp neural networks finish their study, we can assemble all these small bp neural networks into the quondam big bp neural networks ; on the basis of divide - assemble solution, this article discusses the preprocessing of input species and how to deduce the size of bp neural network further to make it easy to overcome entering the local best point ; for the study of every small bp neural network, this article adopts a solution named gdr - ga algorithm, which includes two algorithms. gdr ? a algorithm makes the merits of the two algorithms makeup each other to increase searching speed. finally, this article discusses the processing of atm band - width distribution dynamically

    本文從bp網的結構出,以減小bp神經網路的規模為手段來克服陷入局部極小點,提出了bp神經網路的拆分組裝方法,即將一個大的bp網有機地拆分為幾個小的子bp網,每個子網的權值獨訓練,訓練好以後,再將每個子網的和權值有機地組裝成原先的bp網,從理論和實驗上證明了該方法在解決局部極小值這一問題時是有效的;在拆分組裝方法基礎上,本文詳細闡述了輸入樣本的預處理過程,更進一步地減小了bp網路的規模,使子網的學習更加容易了;對于子網的學習,本文採用了最速梯度? ?遺傳混合演算法(即gdr ? ? ga演算法) ,使gdr演算法和ga演算法的優點互為補充,提高了斂速度;最後本文闡述了用以上方法進行atm帶寬動態分配的過程。
  5. The clock recovery block of usb2. 0 transceiver macrocell consists of phase locked circuit, such as pll and dll ( delay locked loop ). this block use external crystal 12mhz sin signal to produce 60mhz, 120mhz, 480mhz clock signal, and can recover colock signal form date wave. it can support 480mbps ( hs ) and 12mbps ( fs ) word speeds as defined in usb2. 0 specification.

    目的是用鎖相環電路? pll和dll (延遲鎖相環)實現usb2 . 0器宏utm的時鐘恢復模塊。其中pll環路構成的時鐘生器將外部晶振的12mhz正弦信號生成60mhz 、 120mhz 、 480mhz等本地時鐘信號。 dll環路依據本地時鐘信號對外部數據信號進行時鐘恢復。
  6. The system uses the pc and the at89c52 as the control center of the system. the pc optimizes the control parameters as the calculation control unit. the at89c52 receives the various parameters by serial communication with the power measurement system and the fuel consume measurement system and the emission measurement system and the ecu and so on, then sends into pc by sharing the ram with the pc as the communication control unit

    該系統採用pc機和片機at89c52為上位機,以pc機作為計算控制,對動機控制參數進行優化;片機作為通訊控制,與作為下位機的測功器加載系統、油耗測量系統、排放測量系統以及動機電控ecu等子系統進行串列通訊接各參數,並通過與pc機共享ram送入pc機。
  7. Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section

    在第三章介紹無線光接入系統的光收發單元,採用多孔徑卡塞格倫式的天線對消除減小大氣湍流影響有較大作用,針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術,同時還闡述了光接機包括背景噪聲的噪聲機制和接靈敏度、誤碼率等指標,最後給出了一個整個傳送鏈路的功率預算。
  8. In the third chapter, it was particularly analyzed the impact of the correlation between antenna arrays both sides of transmit and receive, the coexistence of line of sight ( los ) component and scatter power component in the radio propagation environments, and known and unknown channel state information on the capacity of mimo channel. the related simulation results are also given

    第三章著重分析了兩端的多天線之間存在相關性、同時存在直射分量( los )和散射分量的傳播環境、已知和未知通道的狀態信息等因素對mimo通道容量的影響,給出了有關模擬結果。
  9. Transceiver baseband unit tbu

    信機基帶
  10. The main products became a shortlist of national pipeline bureau in 2000 ; passed through iso9001 - 2000 international standard quality system certification in 2001 ; ranked as recommended products by china petrol - chemical group and successively obtained physical market entrance permissions awarded by major oil fields within nationwide in 2002 ; audited to be a membership of china petroleum distribution corp. ( energy ahead ) in 2003 ; gained pressure conduit component manufacture license ( for products such as insulation joint, fast - opening blind, receiver & launcher, etc. ) awarded by the general administration of quality supervision, inspection and quarantine of the prc in 2004 ; and obtained pressure vessel manufacture license in 2005

    公司主要產品於2000年成為國家管道局入圍產品; 2001年通過了iso9001 - 2000國際標準質量體系認證; 2002年被中國石油化工集團列為推薦產品,並先後獲得國內各大油田的物質市場準入證; 2003年經審核成為中國石油銷售總公司(能源一號網)會員位; 2004年遼寧省首家獲得(絕緣接頭、快開盲板、球筒有關產品)中華人民共和國質量監督檢驗檢疫總局頒的壓力管道件生產製造許可證; 2005年取得了壓力容器生產製造許可證。
  11. You want to know how bad the addiction is ? he received the bill in the mail, over six hundred dollars in one month

    到賬,一個月600簡訊,我們的癮頭緊抓著我們的心靈,我們不明白為何怎樣?
  12. Article 23 the issuing agencies may request an nt $ 250 fee for each issuance of the certificate of origin ; however, there is no surcharge on any replacement for a cancelled or lost certificate of origin

    第23條簽位簽原產地證明書,得取費用;其費數額,每件新臺幣二百五十;繳銷換或遺失補不另取費用。
  13. It includes : dynamic show of technics flow, real time data acquirement and show, history data save and print, fault alarm, etc. the plc control system mainly accomplishes the wastewater technics flow control, harmonizes the logical relationship among local intelligent control instruments and transmits the state of each local equipment to the industrial computer simultaneously, the plc control station receives the control commands from the industrial computer ; the local intelligent units take charge of the correlated parameters measure, disposal and control, and it will transmit the related parameters to the computer, etc. in this thesis, introduced municipal wastewater treatment technics, the integrated application program development of computer, the design method of plc control station, the communication between plc control system and computer, and the network of wastewater treatment with profibus - dp was also discussed

    上位計算機主要實現遠程監測和管理功能,具體包括:工藝流程動態顯示、實時數據獲得及顯示、歷史數據存儲與列印、故障報警等功能plc控制系統主要完成工藝流程式控制制以及協調現場各智能儀表之間的邏輯關系,將現場各設備的運行狀態通過通訊網路傳輸到上位計算機,並接上位計算機的控制指令;現場各智能儀表負責各相關參數的監測和處理、控制,並將有關參數送往上位監控計算機進行處理、保存等。本文以莎車污水處理項目為例,介紹了城市污水處理工藝、上位監控計算機的綜合應用程序開、城市污水處理自動控制系統plc控制站的設計和採用profibus系列中廣泛應用於現場設備的profibus - dp總線。
  14. Arranged signal activating lock circuit and time - base control circuit in the sound wave receiving circuit to take the initial signal of back wave as the valid one in the cycle, thus to improve the ratio of signal vs. noise and detective precision

    在超聲波接電路中設有信號觸鎖定電路和時基控制電路。實現以各探頭中最早到的回波信號為本檢測的有效信號,有效提高信噪比和檢測精度; 4
  15. The obsolete yellow river channel, an unique unit of the landscape, has been improved after many years exploition and cultivation, but no basic change has taken place for farming and living condition, the farmer ' s income is relatively low and industrialization process is slow

    摘要黃河故道是一個獨特的地貌,經多年的開治理,其利用現狀亡大有改觀,但該地區農業生產條件尚沒有得到根本改變,農民入水平相對較低農業產業化展進程緩慢。
  16. To receive energy transmitted in a steered beam by any of the three scanning methods, the applied frequency, time, or phase relationships are maintained at each element, which has the effect of making the radar sensitive to energy from the direction of transmission

    仍然以每個通過三種掃描方法? ?頻率,時間,相位關系控制波束射的能量,這使雷達對射方向的能量敏感。
  17. Conclusions the first 30 larvh procedures performed in this unit are comparable in terms of safety ( recurrence rate and complication rate ) and economic factors ( shorter hospital stay mitigating longer operating time )

    結論:在這個測試中,首次接larvh的30例婦女,在以安全(復率及並癥率)和經濟因素(縮短住院時間及減少較長的手術時間)方式比較上是合格的。
  18. When the pigment absorbs light ( or, more precisely, absorbs discrete packets of energy called photons ), the added energy causes the retinal to change shape, triggering a cascade of molecular events leading to excitation of the cone cell

    視色素一旦吸了光線(更精確的說法是吸了稱為光子的特定能量) ,新增加的能量就會改變視黃醛的形狀,因而引一連串的分子事件,造成錐細胞的興奮。
  19. In order to understand the remaining oil distribution, and provide evidence for numerical simulation of polymer flooding and comprehensive adjustment, a study on the numerical simulation on the water flooding of pu 1 - 2in western south central block is performed

    模擬結果表明,剩餘油飽和度分佈不均勻,西部過渡帶和注采系統不完善的斷層附近含油飽和度比較高,葡1油層動用狀況較差;南中塊西部葡2 (下標2 )和葡2 (下標3 )沉積育較好,動用程度較大,最終採率可達39 . 6 % ~ 43 . 5 % ,而葡1則相對較差,最終採率只達到28 . 1 % 。
  20. The metal detector consists of transmitter unit and receiver unit

    該金屬探測儀主要由射機和接組成。
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