電壓中心 的英文怎麼說
中文拼音 [diànyāzhōngxīn]
電壓中心
英文
voltage center-
Contrapose to the instability of the third - order charge - pump pll system, the loop optimization method is employed in system level design to decide the bandwidth and phase margin, therefore the loop bandwidth locates at the maximum phase margin to guarantee the stability of the system. according to tsmc 0. 35 m sige bicmos model, the sub - circuits in the designed pll and the whole system are simulated and verified by the cadence spectre
5 .根據tsmc0 . 35 msigebicmos工藝模型,利用cadencespectre模擬軟體對所設計的電荷泵鎖相環路中各個模塊及整個系統進行了模擬模擬,模擬結果顯示,在1 . 5v電源電壓下,頻率為200mhz的參考輸入信號,輸出中心頻率為800mhz ,分頻電路採用4分頻,環路帶寬為10mhz ,捕獲時間大約為0 . 92 s ,功耗大約為15mw ,達到了設計指標。The functions of this automation system focus on five aspects : data acquisition 、 supervision and control 、 fault isolate and recovery 、 gis 、 data statistic and report. the design project takes the rcs - 9000 series 、 sd ? 9520 and sd - 9630, which is a new installation that can detect the operation state of the low - voltage current breaker, and send the state to the control room. the other new installation is sd - 9860, which is the monitor of the cable fault
設計方案中,在採用南瑞rcs - 9000系列、雙電公司sd - 9520裝置的同時,採用了新開發的sd - 9630塑殼開關運行狀態採集裝置,檢測塑殼開關的運行狀態,並將運行狀態傳回到集控中心(中間站) ;採用了新開發的sd - 9860電纜故障指示器,完成電纜故障的識別;集控中心的設計實現了整個小區配電自動化系統的集中通訊、實時監控、統計與管理功能;高、低壓開關實現了自動控制、狀態檢測和無功補償等。There are over 80 sets test apparatus in tech - innovation centre, including : anechoic chamber, vibration tester, vibration measurement analysis, impact instrument, constant temperature and humidity facilities. salt spary test case, circle insulation withstand voltage tester, insulation resistance tester, withstand voltage tester, electric lead tester, electrical leakage tester, earth resistance tester, chassis dynamometer, chassis dynamometer control system, high stability dc resistance tester, electrical capacity tester, temperature rise test system
中心擁有各類分析測試儀器和試驗裝置80餘臺套,包括:消音室振動臺噪聲振動測試分析系統沖擊儀恆溫恆濕實驗儀鹽霧試驗箱匝間耐壓分析儀絕緣電阻分析儀對地耐壓分析儀泄露電流測試儀對地電阻測試儀測功機測功機控制系統高精度直流電阻測試儀電參數測試儀帶電溫升測試儀復合式三坐標測量儀萬分投影儀及電功測試分析系統等。Since 1980s he has been studying the mechanism of normalization of abnormal blood pressure and the resetting of baroreceptor reflex by acupuncture and somatic nerve stimulation, effects of brain osmoreceptor stimulation on sympathetic nerve discharge and renal activity, the role of vasopressin in body fluid and salt homeostasis, difference in gene expression between hypertensive and normotensive rats, hypertension and cardiac ischemia - induced myocardial remodeling, effect of steroids on the nervous system, etc. with his research achievements, dr. yao was awarded science and technology progress prize sponsored by the state education commission grade a award in 1986, grade b award in 1995 and by the ministry of health grade b award in 1989 and 1993, grade a award of guang - hua science and technology prize 1995, and chinese universities science and technology prize grade b award in 2000
近二十年來,他主要從事針刺和刺激軀體神經對心血管和腎臟活動的調整作用刺激腦內滲透壓感受器引起的交感神經放電和腎臟活動的改變血管升壓素在心血管活動調節和水鹽平衡中的作用原發性高血壓的相關基因高血壓和心肌梗死引起的心肌重構甾體激素對神經系統的影響等。他的科研成果曾獲得國家教委科技進步獎一等獎一項1986年二等獎一項1995年衛生部醫藥衛生科技進步獎二等獎二項1989 1993年光華科技基金獎一等獎一項1995年中國高校科學技術獎二等獎一項2000年。Industry : it has five solely - owned enterprises of carbon, thermal power, light steel, pressure vessel and wall body material and six enterprises with participating shares of shandong dongyue chemical industry co., ltd, printing center of newspaper office in the middle part of shandong, sida electric, plough textile company, xinquan cast iron co., ltd, laiwu kaiyuan wanxi company
工業:擁有炭素、熱電、輕鋼、壓力容器、墻體材料等5個獨資企業,山東東岳化工股份公司、魯中晨報印務中心、思達電氣、北斗星紡織公司、鑫泉鑄鐵有限公司、萊蕪開源萬鑫公司等6家參股企業。The company has workshops for product designing, carving, die - casting, polishing, electroplating, laser engraving, drop moulding, grinding, painting, tin soldering, brazing, silver soldering and spot welding, as well as quality test center
公司下設產品設計、刻模、壓鑄、拋光、電鍍、激光雕刻、滴塑、磨砂、畫漆、錫焊、銅焊、銀焊、點焊車間及產品質量檢測中心。Abstract : abb has developed a new insum system which combines measurement, control, protection and signal treatment. this is a new information technique to applicate in low voltage motor and power control centre. it has the diagnosis, pre - warning and control functions for the process control with increasing reliability
文摘: abb公司開發的新型insum測量、控制、保護和信號處理系統是應用於低壓電機控制中心的新信息技術,它具有診斷、預報警及控制的功能,為此提高了過程式控制制的可靠性。In this thesis a fuzzy control system used in voltage and reactive power auto regulatory device is designed based on the nine - zone controlling principle. in the fuzzy system, the fuzzy reasoning is mamdani method and the antifuzzy is centroid method. the software matlab is used to calculate the fuzzy system. the fuzzy system divide the voltage - reactive pane into fuzzy zone, in this way the domain - swing between closing domain is eliminated
論文對電壓無功綜合控制技術進行研究,針對傳統九區域分區控制方法無視電壓與無功耦合的缺點,結合變電站電壓無功控制的實踐經驗,在傳統控制方法上引入模糊控制,設計了基於模糊控制的電壓無功綜合控制系統。模糊推理系統中採用mamdani型推理,非模糊化採用重心法,設計中使用matlab進行輔助設計和離線計算。Dimensions for hexagonal and square crimping - die cavities, indentors, gauges, outer conductor crimp sleeves and centre contact crimp barrels for r. f. cables and connectors
射頻電纜和連接器用六角和正方形壓模腔體壓頭標準規外導體壓接套和中心接觸件壓接導線筒的尺寸Recommended dimensions for hexagonal and square crimping - die cavities, indentors, gauges, outer conductor crimp sleeves and centre contact crimp barrels for r. f. cables and connectors
射頻電纜和連接器用六角形和方形壓接模槽鉗口量規外導體壓接套和中心接觸壓接圓筒的推薦尺寸Recommended dimensions for hexagonal and square crimping - die cavities, indentors, gauges, outer conductor crimp sleeves and centre contact crimp barrels for r. f. cables and connectors ; amendment 1
射頻電纜和連接器用六角形和方形壓接模槽鉗口量規外導體壓接套和中心接觸壓接圓筒的推薦尺寸.補充件1The information of fault recorder and microprocessor - based protection is collected which directly brought up to the central dispatch station, the central dispatch station deals with the information together. by the conclusion of central station method, a system of analysis and diagnosis on the hv transmission network which based on the theory of multitude intelligence agent is proposed
方案由調度中心站和分站組成,分站採集到錄波器以及微機保護的信息后,直接上傳到中心站,由調度中心站進行統一處理,在基於中心站方案的基礎上,提出了智能多agent原理的高壓輸電系統分析與診斷體系。Ab stract the author is engaged in the studying and manufacturing of an intelligent, capable and portable, multifuctional electrocardio monitoring equipment with aduc8 12 single - chip. microcomputer. the equipment can gather and record the electrocardio signals automatically, also can analyse it at real time, and send it out to the monitoring center through the telephone at real time or send it out by serial interfaces to computer. it use the graph display device to show the electrocardio waves and menu. cooperated with buttons, it provides amicable interface, and makes operation simple and convenient. based on the feature of the electrocardio signals, this paper also proposes a electrocardio distortionless data compression algorithm. the algorithn is simple but effective, it can process the data at real time, and the compression - ratio reaches 2 6
所研製的監護儀能長時間採集和記錄心電信號,同時可進行心電數據的實時分析,並可通過電話向監護中心實時發送,也可通過串列介面發送至微機。該監護儀採用圖形液晶顯示器顯示心電波形和菜單,配合按鍵提供友好的人機界面,操作簡潔。本文還根據心電波形的特徵,提出一種心電數據的無損壓縮演算法,該演算法簡單有效,能實時實現,壓縮比達到2 6倍。After the introduction of the selected elements, the thesis gives out a design which includes a front control center based on siemens s7300 plc 、 a line connection of the master profibus and the distributed intelligent i / o et200m system 、 a real - time display system of pressure sensors and a gas supply system with stop valve and electric actuator
本文在介紹了所選擇器件情況基礎上,設計了基於siemenss7300plc為前端控制中心,利用profibus總線接分散式智能i / o et200m系統,壓力傳感器現場顯示,截止閥加電動執行器實現配氣的方案。With the development of the electric power system, static - state reactive power compensators ca n ' t have met the requirements of the actual production and operation, and the trend to the fast and dynamic compensation for reactive power become greater and greater. since ertan hydroplant and 500kv transmission systems in sichuan power system have been operated, many power plants of load center are forced to halt during the high - water period, because the great deal of power is transmitted to far - distance load center. thus the load center loses voltage sustentation and the level of the system stabilization is debased greatly
四川電網的二灘水電站和500kv輸變電系統投入運行后,由於二灘水電站的大量電力遠距離輸送至負荷中心,迫使負荷中心的火電機組在豐水期大量停機,使負荷中心失去電壓支撐,大大降低了電網的電壓穩定水平;同時,因為四川電網中的無功補償裝置全為靜態無功補償電容器(或電抗器) ,這些設備只能在系統正常運行狀態下起到無功補償和電壓支撐的作用,而在電網出現事故時,不但不能起到電壓支撐作用,反而會促使電網電壓崩潰事故的發生。Objective : to investigate the effects and complications of hypertonic saline in the treatment of hyponatremia in patients with obstinate heart failure and to find out prophylactic and therapeutic measures against the complications. methods : to analyze the changes of electrolytes, urea nitrogen, serum creatinine, heart rate, blood pressure, cardiac function after the treatment of hyponatremia in patients with obstinate heart failure by 3 hypertonic saline. results : after the improvement of hyponatremia, cardiac function, the levels of electrolytes, urea nitrogen, serum creatinine were improved significantly. blood pressure rised slightly. heart rate did not change. conclusion : hypertonic saline can redress hyponatremia, improve cardiac function and decrease the levels of urea nitrogen and serum creatinine rapidly and effectively. blood pressure and heart rate did not change significantly
目的探討高滲鹽水在低鈉性頑固性心力衰竭治療過程中的作用和可能出現的並發癥以及防治對策.方法分析3高滲鹽水治療低鈉性頑固性心力衰竭前後的電解質、尿素氮、肌酐、心率、血壓、心功能的變化.結果治療前後心功能、電介質、尿素氮、肌酐有明顯改善,血壓輕度升高,心率無明顯變化.結論高滲鹽水能快速有效地糾正低鈉血癥,有助於心功能的迅速改善,降低血尿素氮、肌酐.對血壓和心率影響不大To avoid the serious electromagnetic interferer, the analog signals are transformed to frequency pulses which are transferred to the kernel of the system. in the measure of the groove voltage, the method of float - ground is adopted to avoid the high common signal and the range switch circuit is designed to solve the conflict of the wide dynamic range and the high precision. least square curvefit is adopted to reduce the system error
鋁電解生產現場電磁干擾非常嚴重,為此我們將需要測量的模擬信號就近轉換為頻率脈沖后再傳送到控制核心;採用浮地接入方式消除槽電壓信號中的共模成分;設計了量程自動切換電路以解決槽電壓的動態范圍寬和測量精度高的矛盾;用最小二乘法進行曲線擬和以降低測量的系統誤差。Second, as currently study of hot point, back ? emf, it will discuss the principle of the sub - position examination in detail. based on the principle, it put forward a kind of improving back - emf method of crossing - zero checking turns position. but this did n ' t resolve to the root problem that the speed scope is very narrow and it need an in expiation of speed error and so on. thus it put forward a new improvement method at next chapter
其次,就目前所研究的熱點? ?反電勢法,詳細討論了其轉子位置檢測的原理,在此基礎上提出了一種改進的反電勢過零點檢測方法,其可直接從電機端部得出反電勢對地的電壓值,而不是通過電機中心點電壓來得到反電勢。The pid control of output voltage feedback is easy to give attention to static and dynamic performance of the control system. output performance of inverter of ups is improved when rms of output voltage feedback is added to pid control system. the hardware and software is designed in order to achieve the digital pid control of inverter of ups
設計了用於逆變器數字化控制的采樣調理電路,結合tms320f240的硬體資源,通過軟體實現了ups系統的緩起動和市電跟蹤,並改進了逆變器電壓瞬時值控制,通過引入輸出電流中心值檢測,對反饋電壓進行補償,解決了逆變器輸出的偏磁問題。Some of them have set about this work. this article discusses the principles of digital tv studio technology according to the present situation and developing tendency of current tv systems, including the features of digital studio, the coding standards of digital signal, the compressing technology of video and audio signals and the utilization of computers multimedia technology in editing tv programs. it elaborates the designing methods, principles and puts forward several concrete disposition examples
本文僅根據目前高校電視節目製作系統的發展現狀及趨勢著重論述了數字電視中心的技術原理,包括數字演播室的特點、數字分量信號的編碼標準、視音頻信號的壓縮技術以及計算機多媒體技術在電視節目製作中的應用等內容,闡述了高校電視節目製作系統數字化的設計思路及設計原則,提出了具體的設備配置方案。分享友人