換模換線 的英文怎麼說
中文拼音 [huànmóhuànxiàn]
換模換線
英文
smed-
Customize for the infra to radio
客戶可定做紅外到無線的轉換模塊After analyzing the switching characteristic of mosfet, the object function of optimizing curve of the output capacitance coss is confirmed according to the switching loss caused by output capacitance coss, then the optimized curve of the output capacitance coss is ascertained by applying zoutendijk to seek the optimized value with constraint ; the simulation of switching circuitry and dc - dc circuitry is tested at different frequency in pspice, then the least square method is adopted to fit simulation curves to calculate corresponding energy data
在電子線路模擬軟體pspice中進行了mosfet開關電路以及典型dc dc轉換線路模擬測試,針對不同頻段的測試結果,採用最小二乘擬合法對模擬曲線進行擬合,計算出相應的能量數據,最後綜合模擬結果確定出減小器件開關損耗,提高dc0c轉換線路效率的器件輸出電容cob優化曲線。Drawing capstans are arranged in straight - line, the metering capstan is driven by separate dc motor. drawing dies can be quickly changed
鼓輪直線式排列,定速輪單獨直流電機驅動,可實現快速換模功能。This paper discussed the coordinate transformation method of wgs84 coordinate system to 1954 - beijing gauss grid coordinate. introduced transformation model of wgs84 to beijing 54 and computing method of transformation parameter. according to different model and computing method, computed and compared with the result combine real data
本文詳細討論了wgs84大地坐標轉換到北京54坐標系下的高斯平面坐標的方法,重點介紹了wgs84和北京54的空間直角坐標的轉換模型及轉換參數的計算方法,並根據不同的模型和計算方法結合實際數據進行計算和結果的比較,認為採用基線向量求解的四參數模型具有較高的轉換精度,分區變換和提高控制點精度也能提高轉換的精度。The company can apply for 8 phone lines, or use existing phone lines for fax operation. these 8 phone lines can be grouped as a hunt group such that it appears as one single number to the outside. this hunt group will allow outside calls to get to the next available phone line to receive fax and hence minimizing the chance of line busy
公司從電信交換局申請8條模擬用戶線,並為這8條模擬線申請自動聯選功能,即這8條電話線可以使用一個號碼來作為主叫,系統會自動在這8條線中找出空閑的一條來應答。In this thesis, based on item response theory, a number of ways to estimate the latent trait and item parameters were introduced and their advantages and disadvantages were analyzed ; what is more, empirical logistic regression and two parameters logistic model ( 2plm ) are combined to set up a linear model by logit - mapping and a new parameter - estimation method is proposed
新方法將經驗logistic回歸用於兩參數logistic模型的參數估計,使用logit變換建立線性模型,利用線性模型的最小二乘估計得到第j個項目的項目參數向量_ j = ( _ j , _ j )的兩步估計由於x _ j含有未知的討厭參數,的理論值也和有關,我們結合上式的結果對進行再估計。So, the real exchange rate of rmb is chosen as the objective of this study. firstly, the international exchange rate theories are reviewed, on the basis of which one - variable autoregressive models of time series are put forward. then, according to analyzing real exchange rate theories and the properties of rmb ' s real exchange rate, a linear autoregressive model and two nonlinear regime switch models are selected as tools for this research
首先,本文對匯率的理論研究進行了回顧,提出了使用時間序列的一元自回歸模型,然後,在對實際匯率的理論研究,以及人民幣實際匯率本身所具有的特點進行分析的基礎上,選擇使用線性自回歸模型和非線性的制度轉換模型中的自我激勵閾值自回歸模型和平滑過渡自回歸模型來描述實際匯率的動態行為特徵。This work can be summarized as follows : 1 ) we define several reference frames, including earth reference frame, radar reference frame, target reference frame. then, we give the conversion relationships on the basis of introducing the model of the conversion model
本文的主要工作如下: ( 1 )完成了在模擬系統中用到的雷達視線坐標系、速度坐標系和目標坐標系的定義,在介紹坐標系轉換模型的基礎上給出了各個坐標系之間的轉換關系式。Network - to - customer installation interfaces - analog voicegrade switched access lines with network - implemented coin - operated payphone feature
網路和用戶裝置間的介面.帶網路實現投幣付費電話功能的模擬音頻轉換訪問線路Telecommunications - interface between carriers and customer installations - analog voicegrade switched access lines with distinctive alerting features
電信.載體和用戶裝置間的介面.帶區別警示功能的模擬音頻轉換訪問線路Telecommunications - installation interfaces - direct - inward - dialing analog voicegrade switched access using loop reverse - battery signaling
電信.網路與用戶裝置介面.利用環路反向電池信令的直接向內撥號模擬音頻轉換訪問線路Interface between carriers and customer installations - analog voice grade switched access lines using loop - start and ground - start signaling
電信公司和客戶安裝之間的介面,使用環路起始和地起始信令的模擬話音級交換訪問線路。Telecommunications - network - to - customer installation interfaces - analog voicegrade switched access lines using loop - start and ground - start signaling
電信.網路和用戶裝置間的介面.利用環路啟動和接地啟動信令的模擬音頻轉換訪問線路Telecommunications - network - to - customer installation interfaces - analog voicegrade switched - access lines using loop - start and ground - start signaling
電信.網路和用戶裝置間的介面.利用環路啟動和接地啟動信令的模擬音頻轉換訪問線路Telecommunications - interface between carriers and customer installations - analog voicegrade switched access lines using loop - start and ground - start signaling
電信.載體和用戶裝置間的介面.用於循環啟動和接地啟動信令的模擬音頻轉換訪問線路This set of production lines has low investment cost and high intelligence with full automated production from stirring raw material to outputting finished products. through using double - layer fabrics and replacing mould, we can make varied concreted products such as hollow bricks, porous bricks, machine - made bricks, colored road bricks and curbstones
該套生產線投資成本低,智能化水程度高,從原料攪拌到成品輸出全部自動化生產,採用雙層布料,更換模具可生產空心磚多孔磚機磚彩色路面磚和路沿石等多種混凝土製品。It was reported that after a 10 day training period, the trainees will visit the 15, 000 households of catv subscribers in the city center to complete the change over and complete this work by the end of the year
作為我市整體轉換的承辦單位,珠海廣播電視臺將免費為合法報裝、按時交費的用戶贈送和安裝數字機頂盒一臺,同時,根據規定,到2007年12月31日,香洲轄區范圍內關閉模擬電視信號傳輸,所有有線電視用戶全部轉換為有線數字電視用戶。And then based on the generalized function and distribution theory, it presents two corollaries that are relate to singularity detection and the wavelet transform modulus maxima line ( wtmml " s )
結合廣義函數與分佈理論,提出了兩個用於描述瞬態信號波至點檢測與小波變換模極大值曲線( wtmml ' s )之間關系的新推論。First we collect signals by shake and infrared temperature sensor, transfer them to computer by a / d instrument, dispel zero excursion of sensor and in - linearity of a / d transformation, save them in the form of data file. then transfer them to matlab, analyze and dispose by wavelet function and toolbox. by lot of experiments and data analysis we find distinct change of the character in different fault states
然後,我們在現場對砂光機進行實驗,利用振動及紅外線溫度傳感器現場實時採集信號,通過a / d采樣卡送入計算機中,採用逆向建模的新方法來消除傳感器零漂及a / d轉換的非線性,再以數據文件形式保存,然後在matlab中調用數據文件,應用小波函數及工具箱對其進行處理分析,經過大量的實驗及數據分析發現在不同的故障狀態下,特徵量有明顯變化。The author puts forward the thought of analyzing bifurcation and chaos in dc / dc converters with the theories of nonlinear dynamics, and the thought of controlling nonlinear problems with linear controlling methods of modern control theory. chapter three ( research on bifurcation and chaos in pwm dc / dc converters ) first theoretically analyzes and emulates period - doubling bifurcation of pwm dc / dc converters with the " inverse " piecewise numerical emulation. then the author analyzes in detail the sampled - data model, the mathematical model, which is suitable to the nonlinear research of dc / dc converters
第三章( pwm型dc dc變換器中分岔與混沌的研究)首先採用「逆向」分段數值模擬法對pwm型dc dc變換器中的倍周期分岔進行了理論分析與數值模擬;接著詳細地分析了適合於dc dc變換器非線性研究的數學模型一采樣數據模型,提出了dc dc變換器中存在環面分岔與鞍結分岔的可能性;最後通過電路實驗驗證了在電路參數發生變化時, dc dc變換器經歷一系列的倍周期分岔通向混沌的演化過程,並對混沌態下dc dc變換器的輸出特性進行了分析與小結。分享友人