點饋源 的英文怎麼說

中文拼音 [diǎnkuìyuán]
點饋源 英文
point-source feed
  • : Ⅰ名詞1 (液體的小滴) drop (of liquid) 2 (細小的痕跡) spot; dot; speck 3 (漢字的筆畫「、」)...
  • : 動詞(饋贈) make a present of
  • : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
  1. A new laser source of optical communication, erbium - ytterbium codoped phosphate glass waveguide laser that was provided with more prominent performance than semiconductor distribution feedback ( dfb ) laser, has been investigated globally from 1990s. the laser can meet many rigorous demands of wdm systems. the 1. 54 m laser emitted by the laser accords with the interrelated standard of international telecommunications union ( itu ), therefore, a splendent foreground can be predicted about this kind of laser in future optical communication

    基於鉺、鐿摻雜磷酸鹽玻璃基片的光波導激光器是一種新型通信光,具有傳統的分佈反半導體激光器所不能比擬的優,能滿足波分復用/密集波分復用技術對光提出的諸多高新要求,所發射的1 . 54 m激光符合國際電信聯盟規范,在未來光通信中有著廣闊的發展前景。
  2. It ' s reflected in four aspects : teaching target, teaching resources, teaching tactics and teaching assessment. the determination of teaching contents is the emphasis, and the teaching contents is determined by teaching target ; the collection of material ( teaching resources ) is the difficulty - compose a script after making a careful study of the teaching material, then collect the material according to the script ; teaching tactics are embodied by the determination of information form and by the way in which the contents accord with the form so as to get the best result in teaching ; making teaching assessment guarantees the quality of the software. in the early making period, the original model method of system engineering is adopted to produce small experimental courseware and a further revision and improvement are made in consultation with some experts. also an agreement on the demand of the software system is reached. in the later making period, the software is appraised by experts from its stability, serviceability reasonableness of construction, and the scientific nature of contents, then it is put into use as an experiment. finally those who use it are required to fill the teaching feedback table

    教學設計理論是靈魂,它貫穿于整個軟體編制過程,從四個方面來體現:教學目標、教學資、教學策略、教學評價。教學內容的確定是重,根據教學目標來確定教學內容;素材的收集(教學資)是難,在鉆研教材的基礎上撰寫腳本,根據腳本去收集素材;教學策略體現在信息形式的確定,以及如何使內容與形式協調一致,達到教學最優化的效果;而進行教學評價是本軟體質量的保證,在軟體的製作的初期,採用系統工程論的原型模型法,開發出實驗性小課件,在徵求專家的意見的基礎上進一步修改、完善、確認軟體系統的需求併到達一致的理解,在軟體製作的後期,再請專家從軟體的穩定性、可操作性、結構的合理性、內容的科學性等方面進行鑒定,最後將軟體作實驗性投入使用,再讓實驗對象填寫教學反信息表。
  3. In escherichia coli, arog gene encodes phenylalanine - sensitive 3 - deoxy - d - arabino - heptulosonate - 7 - phosphate synthase isoenzyme arog that catalyzes the first committed step of shikimate pathway. here we study the essential amino acid residues involved in the formation of feedback inhibition site of arog, and the effects of n - terminus on feedback inhibition and its quaternary structure, and the importance of the structural " d2 " symmetry to allosteric inhibition

    本博士論文工作以大腸桿菌k - 12來的arog為研究對象,通過定突變、反抑制實驗和酶學動力學參數的測定,深入地研究了arog的反抑制位的特性,並對arog的n -末端在反抑制機理和維持穩定四級結構中的作用,以及蛋白質結構的「 d2 」對稱性對酶功能的重要性等進行了具體的研究。
  4. By comparing and analyzing the advantages and disadvantages of three kinds of voltage reference circuits, type of current density ratio compensation 、 weak inversion type and type of poly gate work function, a cascode structure of type of current density ratio compensation is chosen to form the core of voltage reference circuit designed in this paper. applying the negative feedback technology, an output buffer and multiply by - 2 - circuits are designed, which improve the current driving capability

    然後通過比較和分析電流密度比補償型、弱反型工作型和多晶硅柵功函數差型三種帶隙電壓基準電路結構的優缺,確定了電流密度比補償型共共柵結構作為本設計核心電路結構,運用負反技術設計了基準輸出緩沖電路、輸出電壓倍乘電路,改善了核心電路的帶負載能力和電流驅動能力。
  5. On the basis of the background of the present situation in the development of real estate industry in china, this paper, in view of existing situation of marketing planning and combining with the problem of marketing planning in my job, expounds content and working procedure which should focus on during the process of marketing planning, analyzes the present situation of domestic real estate market, and constructs a frame of marketing planning by way of real estate market survey, products planning, sales planning analysis, information feedback research

    這在一定程度上加劇了大量商品房空置,造成社會資的極大浪費。為此,筆者立足於當前中國房地產發展的大環境,針對房地產營銷策劃的現狀,結合所在公司項目營銷策劃課題,對房地產營銷策劃過程中的重內容和操作流程進行了闡述,分析了當前國內房地產市場的現狀,並通過市場調研、產品策劃、銷售策劃、信息反的研究構建了房地產營銷策劃的框架。
  6. In this dissertation, we studied the tcra1101plus total station position system, which introduced the principle and characters of the instrument ' s closed loop tracking system. also we explained the cause of prism ' s position error and brought forward mathematic model to correct, moreover, the good results has been drawn form the expenriments. the kinetic survey system have been realized, which the sampling rate attain more than 5hz and the position precision can be less than 2mm on condition that targeted - point moving slowly at the velocity below 2cm / s. having finished the survey system to examine whether the fine - tuning stewart platform in good status, we have finished mensurating the position reference of the fine - tuning stewart platform and the offset of the prism

    在此基礎上研製了多臺儀器在線控制高頻采樣動態跟蹤測量系統,采樣率大於5hz ,在跟蹤小於2cm / s低速運動目標時,測量精度好於2mm ;完成對二次精調系統的檢測,包括對二次精調平臺位置基準的標定和觀測棱鏡偏心差的測定;設計不同動態測量實驗,對全站儀動態跟蹤的誤差來和特進行了分析;從實驗角度,對全站儀的測量時滯及其穩定性進行了測試分析,給出了定量的結果;比較了全站儀和計算機的內部時間系統,發現兩者存在較大差異。
  7. Using the digital technology improves the performance traditional thyristor welding machine, according to the characters of the double inverse star from rectifier circuit, set the parameters with micro - controller accurately, design the dependable trigger circuit, lead the feedback of voltage for the operation program, so the voltage of main circuit be carried out very steadily

    摘要利用數字控制技術對傳統晶閘管焊接電進行改進,根據雙反星型晶閘管整流電路的特,採用單片機進行精確設定,設計了高可靠性觸發迴路,結合電壓反進行程序運算控制,實現了主電路輸出電壓的精確調整和可靠運行。
  8. Qjyd3200 cut - type auto lift is the professinal lifting equipment for sallon car ' s maintenance and examining. it has the main characteristic of occupying small area, good security capability & has the feedback signal then descending fo the lift platform. it is also very simple to handle & working credibly. especially for the full hydraulic pressure working system, it is suitable for various situation & unnecessary to collocate the compress - air resource additionally

    D3200型剪式汽車舉升機是專供轎車維修、檢測時配置的舉升設備,其主要特是佔地面積小、安全性能好、升降臺下降時有啟鎖反信號、工作可靠、操作簡便,尤其是全液壓工作系統,不需另外配置壓縮空氣,適合多種場合應用。
  9. The main research contents are as follows. 1 ) the characteristics of semi - process industry based on make - to - order are studied, which means that the purchase tune is long while the due date is short, the working procedures are successive and discontinuous. then the general structure of production system based on make - to - order mode in semi - process industry is put forward, which includes estimate of the dynamic finite resources, evaluation of the order based on rough capability balance, material requirement planning, production plan, order tracing, collection and feedback of the local data etc. they all together form an integrated and closed loop system as a whole

    研究的內容主要包括: 1 )研究了半流程製造業面向訂單生產模式具有的采購期長、交貨期短和工序連續但工序間可間斷的特,並基於此提出了適應半流程製造業面向訂單生產的系統總體結構,其主要內容包括動態有限資能力評價、基於初能力平衡的訂單評估、物料需求計劃和生產作業計劃、以及訂單跟蹤和現場數據的採集和反等,它們在總體上形成了一個集成的和閉環的系統。
  10. At last this chapter researches two ways that make system performance optimal, test way and pole allocation way. the affections of feedback parameters, air pressure and load quality are analyzed. chapter 5 introduces the theory, application and foreground of the vsc ( variable structure control ) system

    最後一部分研究了實現系統狀態反控制的方法,包括試湊法和極配置法,並分析了各反參數、氣壓力和負載質量對控制性能的影響。
  11. The newmark - p step - by - step numerical integration algorithm is used to calculate the response behavior of system when feed cabin locates at a certain position ( typical location ) and when feed cabin moves along a certain trace ( time - dependent structure )

    。 ark d數值積分方法,在時域上分析了艙停留在空間某一位置(典型)和沿空間某一軌跡運行(變結構)時,系統的順風向風致響應。
  12. Theoretically, the main work is the simulation of source excitation. by comparing the advantages and disadvantages of previous methods of source simulation, a novel simulation method of excitation source is presented. the details of the application to microstrip feed, waveguide feed and coaxial - cable feed using this simulating method are given

    在fdtd用於天線計算理論研究中本文重研究了激勵設置問題,比較了現有的各種激勵設置方式的優缺以及它們的適用范圍,在此基礎上,提出一種新的激勵設置方法,並將其推廣到微帶線電、波導電、同軸線電等天線的通用電方式。
  13. The aimd has got a widely apply for its briefness and ease. at the other hand, it contain limited information because it has only two status : overload or under load. it cannot represent the true demand of the receiver and at the same time the policies of window adjust destroy the demand of smoothness of load, so it cannot afford the request of real - time streaming media

    Aimd從演算法的簡單性和實際網路容易實現的角度考慮,反給發送方的信息有限,只有過載或欠載兩種二進制狀態; aimd演算法根據瓶頸資的擁塞狀態向所有用戶發送相同的反信號,並不能真實反映接收節對發送方負載量的要求;同時, aimd的窗口調整策略破壞了負載平滑性的要求,不能滿足當前實時流媒體應用, aimd的這些不足,體現了一種性能和系統復雜度之間的折衷。
  14. The fundamentals of switch power supply are firstly introduced in thesis where the control module of positive output voltage is discussed in detail, which is followed by the sub - blocks simulation, the feed - forward system analysis

    本文對開關電的基礎知識進行了介紹,重討論了在該電管理晶元中的正電壓輸出電路設計和各子模塊模擬,對輸入電壓前控制方法進行了分析。
  15. Three leica tca1100 laser total stations are utilized to trace and measure the center of the three reflecting prisms. the coordinates of the three targets could be got by translation and rotation of reference - system. 3

    激光測量方法:採用三臺激光全站儀,動態跟蹤並測量艙上三個棱鏡中心的坐標,並通過坐標變換得到艙的位置與姿態。
  16. With regard to the flow regulation of the best - effort traffic, the controllable traffic in high speed computer communication networks, the present paper proposes a novel control theoretic approach that designs a proportional - integrative ( pi ) controller based on multi - rate sampling for congestion controlling. based on the traffic model of a single node and on system stability criterion, it is shown that this pi controller can regulate the source rate on the basis of the knowledge of buffer occupancy of the destination node in such a manner that the congestion - controlled network is asymptotically stable without oscillation in terms of the buffer occupancy of the destionation node ; and the steady value of queue length is consistent with the specified threshold value

    本文從控制理論的角度出發,針對計算機高速網際網路中最大服務交通流即能控交通流的調節問題提出了一種基於多速率采樣的具有比例積分( pi )控制器結構的擁塞控制理論和方法,在單個節的交通流的模型基礎上,運用控制理論中的系統穩定性分析方法,討論如何利用信終端節緩沖佔有量的比例加積分的反形式來調節信的能控交通流的輸入速率,從而使被控網路節的緩沖佔有量趨于穩定;同時使被控網路節的穩定隊列長度逼近指定的門限值。
  17. The system includes production planning, quality management, energy management, statistical reports, basic datum management and users management. the system adopts a special coding method to track production quality, and the electrobaths " state is fed back to adjust production. this method realizes the efficient quality control in the successive production process

    系統以質量問題為核心,採用批號跟蹤主要生產設備狀態備案的方法考核產品質量,為生產過程提供反信息,從而實現了在不間斷的流程型生產過程中產品質量的跟蹤和控制;以生產成本中占據最大比例的能費用為重,對能使用進行規劃控制。
  18. Its basic features include such as follows : it comprises the web - based instructional supporting system and the network resource for teaching ; it is an open system ; it allows its resource to be shared freely ; it makes up a zero - timed and zero - spaced learning environments ; it achieves a free exchange between the teachers and the students by means of bi - directional feedback

    它的基本特是:由網路教學資和網路教學支持系統構成;具有開放性;能夠實現資共享;提供零時間、零空間的學習環境;允許互動式反以實現教學互動。
  19. Its basic features include such as follows : ? t comprises the web - based instructional supporting system and the network resource for teaching ; ? t is an open system ; ( l ) it allows its resource to be shared freely ; ( 4 ) it makes up a zero - timed and zero - spaced learning environments ; ( 5 ) it achieves a free exchange between the teachers and the students by means of bi - directional feedback

    網路教學系統是指基於計算機網路環境的,能夠隨時隨地支持教師備課、授課和學生自主學習,能夠開展網上作業、考試、討論、答疑等教學活動的教學軟體系統。它的基本特是:由網路教學資和網路教學支持系統構成;具有開放性;能夠實現資共享;提供零時間、零空間的學習環境;允許互動式反以實現教學互動。
  20. Based on the movement laws of cabin, and considering the force condition in cables, a 8 - cable suspension feed system, which can completely remove the no solution surfaces in 6 - cable system, is presented and designed by means of adding 2 down - ward cables

    針對六懸索系統工作空間中存在的六個無解面,在綜合考慮艙運行規律及懸索受力特的基礎上,通過增加兩根向下拉的冗餘懸索,提出並設計了八懸索系統。
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