zero input 中文意思是什麼
zero input
解釋
零輸入-
High - frequency link power converters are receiving increasing attention. when the input frequency of ac - ac converter is quite high, such as 20khz or above, in order to make sure the converter switching action is restricted to the zero crossing point of the link voltage, the switching cycle becomes discrete pulse spectrums, however, the conventional pwm converters are ruled out because they would fail either to the efficiency or the low - distortion criteria
當交-交變頻器的輸入頻率非常高，通常為20khz時，為了在零電壓條件下實現逆變器開關管的通斷，變換器的開關時刻必須選擇在高頻交流電壓脈沖為零時，這意味著變換器開關時刻在時間軸上成為不連續的點，而常規的硬開關pwm變換器是將開關時刻選擇在任意時刻。 -
A too high or too low social return appropriated level comparative to standard level ( in the vicinity of zero ) reveals a non - coordinative efficiency in innovation activities. this research shows that firms with coordinative efficiency cluster in labour input intensity and higher output elastisity manufacturing sectors
但是，從非參數方法對生產函數法的補充以來，又掀起了生產率研究的熱潮。本文是在一些學者對生產率測度的已有基礎上進行技術創新效率內涵的擴展的，並用此擴展內涵分析了我國工業行業的技術創新效率。 -
For these reasons, we can apply the theory of the model reference self - adaptive control syetem design based on the theorem of balance point stabilization in the force system of asymmetric cylinder controlled by symmetric valve. the main idea of model reference self - adaptive controller is to make the self - adaptive control error incline to zero as time passed. the task to design adaptive controller is to find the control input that can make the output of the controlled system to follow that of the reference model
因此將基於平衡點穩定定理的模型參考自適應控制系統設計理論應用於閥控非對稱缸力系統中，其基本原理是使自適應控制誤差隨時間的推移而趨向于零，自適應控制器設計的目的是尋找使被控系統的輸出漸近一致的跟隨參考模型的輸出的控制輸入，以此來改善被控系統的性能。 -
According to these data, gross income was increased by 2. 5 to 15. 3 times in systems where plant nutrients were applied adequately when compared to zero or low input systems
根據這些數據，在這些種植制度下施用適量的養分比不投入或低投入養分的毛收入增加了2 . 5 ~ 15 . 3倍。 -
Gross incomes from crop production at yield and nutrient input levels shown （ table 7 ） are compared in table 8 with gross incomes achievable within the same cropping system but with zero or low nutrient inputs
表8把表7所列的產量和養分投入水平下作物生產的毛收入與相同種植制度下無養分投入或低養分投入時的毛收入作了比較。 -
Piezoelectric elements were bonded on the plate as actuators and the input voltage of each actuator was determined by the velocity of its position and volume velocity of the plate was made zero, through which the sound radiation from the plate could be controlled
在簡支薄板表面粘貼壓電片作為致動器，根據所處位置的速度確定輸入控制電壓，並使平板的體積速度為零，從而達到控制聲輻射的目的。 -
A resolution method in software is applied to calibrate zero point and full scale of the circuit. software approach to nonlinear correction for sensor and circuit is presented. therefore system error is eliminated, and measurement accuracy of temperature is improved. the signal of acidity electrode is detected by a differential amplifier circuit, which consists of operational amplifiers tlc2254 with high input impedance and low drift
採用橋路和單運放差動放大電路對溫度傳感器信號檢測放大，軟體校正溫度傳感器和測量電路的非線性，軟體校準測量電路的零點和滿度，消除測量電路的系統誤差，提高補償溫度的測量精度；採用高阻、低漂移運放tlc2254組成高阻差動放大電路用於酸度電極信號測量。 -
The characteristics of three - level ( tl ) converter and its effect to the zero - crossing distortion are analyzed, and extended it to ml converters, which are suitable for the high input frequency pfc application
文章詳細分析了三電平（ three - level ， tl ）變換器的特點和對輸入電流過零畸變的改善作用，並推廣至多電平變換器。 -
Because the switches suffer only the half of the input voltage, the three - level ( tl ) converters have been attracting more and more attentions. this thesis proposes a family of zero - voltage - switching multi - resonant three - level dc / dc converters
三電平變換器可以降低開關管的電壓應力，並且可以減小輸出濾波器（或儲能元件）的大小，近年來逐步成為電力電子技術的一個研究熱點。 -
The thesis has done the widespread investigation and study to the domestic and foreign ’ s technologies of analogy low voltage and low power, and analyzes the principles of work, merts and shortcomings of these technologies, based on the absorption of these technologies, it designs a 1. 5v low power rail - to - rail cmos operational amplifier. when designing input stage, in order to enable the input common mode voltage range to achieve rail - to - rail, it does not use the traditional differential input pair, but use the nmos tube and the pmos tube parallel supplementary differential input pair to the structure, and uses the proportional current mirror technology to realize the constant transconductance of input stage. in the middle gain stage design, the current mirror load does not use the traditional standard cascode structure, but uses the low voltage, wide - swing casecode structure which is suitable to work in low voltage. when designing output stage, in order to enhance the efficiency, it uses the push - pull common source stage amplifier as the output stage, the output voltage swing basically reached rail - to - rail. the thesis changes the design of the traditional normal source based on the operational amplifier, uses the differential amplifier with current mirror load to design a normal current source. the normal current source provides the stable bias current and the bias voltage to the operational amplifier, so the stability of operational amplifier is guaranteed. the thesis uses the miller compensate technology with a adjusting zero resistance to compensate the operational amplifier
本論文對國內外的模擬低電壓低功耗技術做了廣泛的調查研究，分析了這些技術的工作原理和優缺點，在吸收這些技術成果基礎上設計了一個1 . 5v低功耗軌至軌cmos運算放大器。在設計輸入級時，為了使輸入共模電壓范圍達到軌至軌，不是採用傳統的差動輸入結構，而是採用了nmos管和pmos管並聯的互補差動輸入對結構，並採用成比例的電流鏡技術實現了輸入級跨導的恆定;在中間增益級設計中，電流鏡負載並不是採用傳統的標準共源共柵結構，而是採用了適合在低壓工作的低壓寬擺幅共源共柵結構;在輸出級設計時，為了提高效率，採用了推挽共源級放大器作為輸出級，輸出電壓擺幅基本上達到了軌至軌;本論文改變傳統基準源基於運放的設計，採用了帶電流鏡負載的差分放大器設計了一個基準電流源，給運放提供穩定的偏置電流和偏置電壓，保證了運放的穩定性;並採用了帶調零電阻的密勒補償技術對運放進行頻率補償。 -
The following algorithms have been proposed and tested in the thesis : 1 frequency selective fading : combine the isomorphism between the input space and the output space and propose a new approach to blind equalization of the channel. compared with conventional methods, the new approach offers lower computational complexity, better performance, and more robust against the over - determination of the system order ; 2 time selective fading : a new approach to the equalization of time selective channel based on the zero - forced equalizer is proposed which is more simple in its structure of algorithm ; 3 time - varying channel : using the instantaneous mean value changes of the output signal to extract the information of channel variations and model it using ar model, kalman filter is then employed to track channel variations, it bears faster ability in tracking the variation of tv channels ; based on the isomorphism between the inputs and the outputs and some of the approaches using in mimo system, a new algorithm of equalization of simo time - varying channel is proposed, which also share the merits of being robust against the over - determination of the system order ; model the time - varying channel using the multi - resolution decomposition wavelets, and then a blind identification method based " on the model is proposed ; at last, a new model for equalization and identification of mimo system is proposed
主要工作在以下幾個方面： 1 、針對頻率選擇性衰落通道：結合輸入輸出空間同構關系提出一種新的頻率選擇性通道均衡方法，與傳統方法相比，該方法計算量更小，收斂速度更快，性能更優，且對系統階次的過確定表現穩健，具有實際均衡應用價值； 2 、針對時間選擇性衰落通道：提出一種基於迫零均衡的時間選擇性通道均衡方法，演算法結構簡單； 3 、針對時變色散通道：利用瞬態均值曲線提取通道時變信息，對之ar建模，利用卡爾曼濾波器跟蹤時變通道抽頭變化，可以快速跟蹤通道變化；基於輸入輸出空間之間的同構關系以及多輸入多輸出系統的處理方法，提出了新的單輸入多輸出色散時變通道均衡與識別演算法，同樣具有對通道階次過確定保持穩健的優點；結合小波多解析度分析提出一種基於小波模型的通道盲識別演算法；研究時變的多輸入多輸出系統的盲均衡與盲反卷積問題，給出一種時變系統處理模型。 -
As land and labour are so much cheaper than purchased inputs, large segments of the population are surviving by opening up new land and employ zero or minimum input techniques that are leading to gradual degradation of the land
由於土地、勞力比購買物化商品投入要便宜得多，所以大部分人口依靠開墾荒地，不施或少施肥料來維持生計，由此逐漸導致土地退化。 -
Obtaining zero - input response by network function
利用網路函數求零輸入響應 -
Zero - input response
零輸入響應 -
If no independent source exits in a first - order circuit, the response to it is called the zero - input response
如果不存在獨立電源，那麼電路的響應稱為零輸入響應。 -
Measured for pressure is based in zero dead time parallel acquisition technology. one board has been 4 channels. one channel has been 100ksps sampling rate and 20mv 10v input signal range ( 7 scopes selectable )
對壓力的測量基於多通道無間隔并行採集技術，單模板可實現4通道并行採集，每通道采樣率100ksps ，信號輸入范圍20mv 10v （七擋可選擇） 。 -
Firstly, the equilibrium solution is global asymptotic stability and exponential stability on l2 [ 0, l ] under neumann and dirichlet boundary control conditions, control inputs for choosing the boundary control is bounded in lx, the equilibrium solutions decay to zero and integrating the solution square in [ 0, 1 ], it decays to zero exponentially, by using nonlinear boundary control conditions and input feedback control method
首先，採用非線性邊界條件輸入反饋控制方法，研究得到該類方程在neumann和dirichlet邊界控制條件下的平衡解在l _ 2 [ 0 ， 1 ]上是全局漸近穩定和指數穩定的、在所選邊界控制下控制輸入是l _有界的、平衡解隨時間衰減到零以及平衡解的平方在[ 0 ， 1 ]上的積分按指數方式衰減到零。 -
Owing to weak output signals integrated amplifier is designed, which is characteristics of shorter wires, higher input impedance, higher common mode rejection ratio and series mode rejection ratio, smaller zero shift and temperature shift
由於輸出信號微弱，採用短線路傳輸，高輸入阻抗，共模抑制比和串模抑制比高，溫漂和零漂小的集成運放電路。 -
Class provides information about the invalid input character, namely its zero - based position in the formatted string and a general description about why the character was rejected
類提供有關無效輸入字元的信息，即該字元在格式化字元串中從零開始的位置和該字元遭到拒絕的原因的一般說明。 -
A stored procedure can have any number of including zero input or output parameters and can pass a return value
存儲過程可以具有任意個（包括0個）輸入或輸出參數，並可以傳遞一個返回值。
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