零同態 的英文怎麼說
中文拼音 [língtóngtài]
零同態
英文
zero homomorphism-
The ultrastructure of the hepatocyte in bufo bufo gargarizans cantor between pro - hibernation and initial post - hi be rnation was studied in this paper. the results show that : 1. the hepatocytes in pro - hibernation period have very plenty of glycogen granules, but nearly not glycog en granules in post - hibernation period ; 2. the hepatocytes in pro - hibernation peri od have very developed rough endoplasmic reticulum, but a few scattered dilatant rough endoplasmic reticula in post - hibernation period ; 3. the quantity of mitocho ndria, and the structure of nuclei and bile canaliculi in pro - hibernation period have not obvious difference from that in post - hibernation period ; 4. two types o f hepatocytes in pro - hibernation were found. the significance of the results men tioned above is also discussed
冬眠前和出眠初期的中華大蟾蜍肝細胞的超微結構有如下特點： （ 1 ）冬眠前肝細胞堆積有大量糖元顆粒，而出眠初期幾乎無糖元顆粒； （ 2 ）冬眠前肝細胞的粗面內質網非常發達，而出眠初期的粗面內質網不發達，常呈零散膨大； （ 3 ）線粒體的數量，細胞核和膽小管的形態結構在這兩個時期無明顯差異； （ 4 ）冬眠前肝細胞可分為兩種不同的類型.對上述結果的生理意義作了討論The consumerist cultural values and popular cultural values combine into the best model - dual model, which has relatively complex mode, and transforms in accordance with different corpus
二元價值模式有相對復雜的零度和正負偏離狀態，相互之間依讀解主體的不同產生動態轉換。The directive thinking is : basis of resources breeding and management and development and utilization ; leading by feature industry such as forest industry and forest tourism ; aiming at meeting the need of market and public environment construction ; guiding at systemic, synthetically and stereoscopic development ; building up region industry group and industry train. on the basis of analysis industry position, it studied the relation between industry system and industry group and the relation between industry group and industry train. using theorical pattern, it described the relation and degree of coordination in industry trains and suggested the policy of adjustment of industry structure and advancement for state - owned forest region
本文界定了林業的產業性質，在三次產業分類法的基礎上提出四次產業分類法，提出了「零級產業（環境產業） 」概念，辨析了環境產業與林業產業的相關關系；分析了森林三大效益?成本關系；分析國有林區產業單一狀況的弊端；從經濟、社會和生態三方面分析了產業協同發展的價值；提出國有林區產業體系建立的指導思想：以資源培育與開發利用產業為基礎和龍頭，以特色產業? ?如林產工業、森林旅遊等為主導，以滿足市場需求和公益環境建設需求相兼顧為目標，以系統、綜合、立體開發為指針，建立具有區域特點的、協調的產業群和產業鏈；在產業位勢分析的基礎上，勾畫了產業體系與產業群、產業群與產業鏈之間的相關關系：運用理論模型描述產業鏈之間的相關關系及協同度。This article first analyzes the phenomenon of retail business modes ' convergence in city commercial circle, applies the vacuum place theory, life - cycle theory and so on to analyze the phenomenon of retail business modes convergence in city commercial circle, and then it puts forward some countermeasures for the managers of retail business modes ' convergence in commercial circle under the circumstance of business modes ' convergence
摘要本文從我國城市商圈內存在的零售業態趨同現象入手，運用真空地帶理論、生命周期理論等多個理論對城市商圈內存在的業態趨同現象進行了分析，並提出了在業態趨同環境下，商圈內的零售業態經營者應採取的相關對策。The comparision of morphological investigation results indicated that the number of the flowering accessions and the number of flowers of lchinense var. rubrum in spring were more than those in autumn. only one accession ( no. 13 ) yielded several flowers in summer. some accessions had the same or similar color of leaf and / or flower in spring, and so was it in autumn
形態調查結果表明：三個季節相比較，春季開花的類型最多，花量也最多；秋季開花的類型及花量次於春季；夏季只有1個類型（ 13號）零星開花；春秋兩季每個季節均有幾個類型的花色、葉色相同，如4號與17號；同一類型春秋兩季形態相比較， 13號、 15號花色完全相同，其它類型花色略有差異。By compared with the simulation results and the experiment results, we come to the conclusions that : ( 1 ) circuit with assistant network can widen soft - switching extent in lagging arm, reduces duty - cycle loss on the secondary, diminishes switching dissipation of inverter spot - welding power source. ( 2 ) the range of resonant capacitor, the important factor to soft - switching process, not only affects zero - voltage turn - off of power switches, but also affects the range of zero - voltage turn - on of power switches. so resonant capacitors must be considered according to many aspects ; ( 3 ) it easily fulfils soft - switching condition in lagging arm as leakage inductance of power transformer increases, but bigger leakage inductance of power transformer increases opening dissipation of transformer and decreases efficiency of soft - switching inverter power source
通過模擬結果與軟開關點焊逆變器試驗結果的對比分析，得到了如下主要結論：採用輔助網路可以完全拓寬全橋軟開關逆變器的滯后橋臂軟開關范圍，減小了次級占空比丟失，降低了逆變電阻點焊電源的開關損耗；諧振電容是影響軟開關工作狀態的重要因素，其大小不僅影響開關管的零電壓關斷，同時也影響開關管的零電壓開通范圍，因此，諧振電容應該綜合考慮；功率變壓器漏感越大，越容易滿足滯后橋臂的軟開關條件，但是大的漏感也使變壓器的通態損耗增加，降低了軟開關逆變器的效率。If an electron with k state is initially in one miniband, elastic scattering will make the difference of the probability band occupation tend to zero. if electrons initially are located at a single wannier state, elastic scattering will make the difference of the probability band occupation tend to a constant which does not equal zero. the stable distribution in k space is just the same as the average distribution when no scattering
發現彈性散射會破壞電子間的關聯，使得初始處在某一微帶上的態電子在兩微帶上的佔有幾率趨於一致；初始電子處在實空間的單個瓦尼爾態上時，最後在彈性散射的影響下兩帶佔有幾率差不為零，並且在上的穩定分佈和沒有散射時的平均分佈相同。( 3 ) study deeply the structure of fat 16 file system and the characteristic of flash disk, and develop the file management software of flash disk to manage nc files effectively according to the management idea of fat 16 file system. ( 4 ) research the module and protocol of reliable communication in serial network, which are composed of arm main control board, dsp motion control board, keyboard board, i / o control board and encoder signal collection board, and then develop communication software of the serial network. ( 5 ) study the principle of displaying char in lcd and the method of embedding font library into operating system, and research deeply the method of embedding chinese font library into os in the light of the characteristic of chinese
本論文的主要研究內容如下： （ 1 ）研究uc os -實時嵌入式操作系統在硬體平臺上的移植及其佔先式內核的任務調度原理，合理分割銑床控制系統的管理任務，根據任務的要求賦予不同的優先級和調度時間，保證任務的執行效率和實時性； （ 2 ）開發底層設備驅動程序和應用程序介面（ api ）函數，以便於進行系統應用軟體的開發； （ 3 ）深入研究fat16文件系統的結構和固態盤的硬體特性，參照fat16文件系統的管理思路，開發固態盤文件管理軟體以有效管理nc代碼文件； （ 4 ）深入研究由arm主控板、鍵盤板、 i o控制板、編碼器信號採集板等裝置組成的串口通訊網路可靠通信的模型及其通訊協議，開發串口通訊網路通信軟體； （ 5 ）研究字元的顯示原理和在操作系統中嵌入字庫的方法，在此基礎上結合漢字的特性深入研究中文字庫的嵌入方法，開發中文字庫嵌入軟體，滿足開發操作界面的信息要求； （ 6 ）深入研究三維圖形坐標變換的原理，開發實用的三維加工軌跡顯示軟體，便於操作者對零件的加工過程進行監控和診斷。The program is written by assemble language to control the movement of the vacuum circuit breaker with pma. the program also can monitor the environmental temperature, control voltage, closing displacement, zero point of contactor voltage
用匯編語言編製程序對配永磁機構的真空斷路器的分、合閘進行控制，同時對其運行的環境溫度、控制電壓、合閘位移和觸頭間隙電壓過零點等狀態進行實時監測。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。The year 2002 is international ecotourism year. we urge the nurturing of spiritual wholeness as we labour to save and protect our physical environment and as we strive to live in merciful love for all mankind, to refrain from killings and wars and to build a world in which peace prevails
一二零零二年為國際生態旅遊年，我六宗教領袖特別關注保護生態環境之同時，亦重視心靈環保，期望世人慈悲存心，生活友愛，停止戰爭殺戮，共建和平世界。The clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. the operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. the effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined
本文將諧振電感和變壓器交換位置，使變壓器與滯后橋臂相連，這樣箝位二極體在一個開關周期中只導通一次，同時零狀態時諧振電感電流較小，有利於提高變換效率和減小占空比丟失，本文分析改進后變換器的工作原理，並與改進前的變換器進行對比，討論隔直電容在不同位置對變換器工作的影響，確定一種最佳工程方案。Based on x - filtered lms algorithm and - filtered lms algorithm adaptive inverse control, we use a new variable step size lms algorithm. adding little computation, variable step size lms algorithm can result in fast convergence speed and low residual error simultaneously. the adaptive feedback control can counteract the beginning error of the system
在原來的x -濾波lms演算法自適應逆控制和-濾波lms演算法自適應逆控制方法的基礎上，引入了新的變步長lms演算法，在計算量增加不多的前提下，能同時獲得較快的收斂速度和較小的穩態誤差；引入自適應的反饋補償控制克服了被控系統的直流零頻漂移，使控制系統在初開始工作階段快速收斂；還引入自適應擾動消除器，它能最大限度的消除擾動。At the same time, we discuss the zero dynamic problem of nonminimum phase systems
同時，本文對非最小相位系統的零動態問題也給予了討論。The state of the closed - loop control system is proved to be bounded with tracking error converging to zero
同樣證明了閉環模糊控制系統全狀態有界和跟蹤誤差收斂到零。It ' s reviewed for the coefficient classification of existing wavelet image encoding technologies. wavelet coefficient is clustered with gray structuring elements dilation and outputted in the form of fractional bit plane according to the different significance. zero tree structure is used to employ cross - subband dependency to promote the coding effort
在對現有的小波編碼器對系數的分類方法的分析下，通過灰度結構元的形態學膨脹運算對小波系數進行更細的聚類分析，按照重要性的不同以分數比特平面的形式輸出系數，通過零樹結構開發帶間相關性。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 traditional level measuring methods can n ' t meet our demand because the subjective investigated is in such a poor systemic condition that the temperature is a little high and there ' s so many mill dust and steam there. in this article we perform systemic discuss and research against the dynamic level measuring method under special working condition on the basis of analyzing kinds of level measuring technique in and abroad. first we establish the pressure distribution mathematic model in storage bin and then deduce the mathematic relation between level height and the uniform stress on the bottom of the bin and designed a resistance compressive stress sensor used for the special condition and put forward a resoivement according to its zero excursion existing in practical use
由於本研究系統被測對象環境溫度較高且潮濕，同時料倉中有大量粉塵及蒸汽，因此傳統的料位檢測方法不能滿足本測試要求。本文在分析國內外各種物位檢測技術的基礎上，針對特殊工況下動態物料高度的檢測進行了系統的探討與研究。首先建立了料倉中的壓力分佈數學模型，推導出料位高度與倉底均布壓力間的數學關系式，並據此設計了中溫電阻應變式壓力傳感器，同時對它在實際應用中存在的零點漂移等問題提出了改進措施，提高了傳感器性能，解決了上述特殊工況下動態物料檢測的技術難題。The afcd launched a joint project " native is the best " in march 2002 with the university of hong kong and kadoorie farm & botanic garden. the project would examine the growth of different native tree species and the effectiveness of different planting methods, and explore the feasibility of building up an eco - corridor at middle gap, aberdeen
本署聯同香港大學及嘉道理農場暨植物園，於二零零二年三月推行原生最美計劃，研究本地樹木品種的生長情況、各種種植方法，以及於香港仔中峽興建生態走廊的可行性。( 3 ) the electric field breaks the energy degeneracy for symmetrical impurity position in the well, the results show that the redshift and blueshift of the impurity stark energy shift as the impurity position. ( 4 ) under the same external electric field, the impurity stark energy shift is obviously different with the different aspect ratio of the quantum well wires
（ 3 ）當施主離子位於勢阱中不同位置時，零電場下量子阱線中的雜質態是關于施主離子位置中心對稱的簡並態，在外加電場作用下發生能級分裂，這種簡並不再存在;雜質的stark能移由於施主離子位置的不同表現為紅移或藍移。分享友人