逆動因子 的英文怎麼說
中文拼音 [nìdòngyīnzi]
逆動因子
英文
pgdp-gtreversing factors-
Dreb - type transcription factors can accept stress signals from environment and promote the expression of stress - tolerant genes. four dreb homolog genes, gmdreba, gmdrebb, gmdrebc and osdreb4 - 2 were isolated from soybean [ glycine max ( l. ) merr. ]
Dreb類轉錄因子能接受逆境信號並啟動逆境應答基因的表達。在本研究中，以大豆和水稻為材料，共克隆了4個dreb的同源基因，分別命名為gmdreba ， gmdrebb ， gmdrebc和osdreb4 - 2 。Being a sort of new principle micromotor in the fronitier of science. the ultrosonic motor ( usm ) is developed at recently twenty years. utilizing the stator surface particle elliptical motion excited by piezoceeramics, the usm is drived by friction force between the stator and rotor. compared with the conventional electromagnetic motor, the ultrasonic motor has the following features : high speed, high holding torque when power is off and so on. because of it ' s characteristics, the ultrasonic motor has obtained some widespread application in robots, precise instrument, house electronical appliance, sapceecraft automobile and micromechanism
超聲波電機（ ultrasonicmotor ）是近二十年來發展起來的一種新原理電機，其原理不同於傳統的電磁型電機，它是利用壓電陶瓷的逆壓電效應使定子的表面質點產生橢圓運動，通過定子和轉子之間的摩擦力驅動轉子運動。這種新型的電機與傳統電磁電機相比，具有響應快、不受電磁干擾、結構緊湊、低速、大扭矩、斷電自鎖等優點，因而在微型機械、機器人、精密儀器、家用電器、航天器、汽車等方面顯示出廣泛的應用前景。Focused on " understanding media ", the article analyses in chapter i the key media theory of employing what could be of mcluhan in a thoughtful angle ， and advances the viewpoint of " human being - the extending of media ? ". in chapter ii 、 in the following third part ， the idea of " media ' s endding " is expounded and demonstrated ， which is composed of three parts ： extreme of speed ， content of the content ， and human being ' s last extending - the extending of central nerves 。 in the final part ， the general conclusion ? ? electronic media ' s influence on human behavior is given ， that is human are under universal narcissism and pacing to the bottom of it impelled by electronic speed. the article has five original points in it ： first of all, in virtue of " content theory " ， it analyzes the theory of " meida equals to information " by mcluhan from a scale theory stand. secondly, the tremendous power of electronic media is emphasized from an implosion view. in the third point, the article advanced originally that, after extension of central nerve system, human themsevels reverse to an extension of media and turns into a node of it ; at the same time, the article proposes that, all extensions before that of central nerve are " controllable extension ", however, it reverses to " uncontrollable extension " while extending ; then the authur put forward for the first time that, the concernful reason obsessing human is the failure of their in - body central nerve system " s jointing and controlling on out - body central nerve system naturally. 。 the fourth point is, the article demonstrates systematically the idea of " media ' s endding " from three levels solely by thoughtful means, and this is the most revolutionary point of it all
論文的創新之處有五點：一是從「尺度論」的角度，藉助「內容論」來解讀麥克盧漢的「媒介即訊息」的思想；二是從「內爆」的角度突出電子媒介的巨大力量；三是獨創提出在電子媒介時代，人類延伸了自己的中樞神經系統之後，人類本身被逆轉為媒介的延伸，成為電子媒介的一個節點；同時在本章節中提出中樞神經延伸之前的所有延伸為「可控延伸」 ，而中樞神經被延伸時「可控延伸」逆轉為「不可控延伸」 ，並首次提出，困擾人類種種問題的重要原因是體內的中樞神經系統無法無縫地對接和控制被延伸出去的體外中樞神經系統；四是獨自運用思辯的力量從三個層面綜合論證了「媒介的終結」的觀點，此處論證為本文最大創新之處，而此結論也將具有重大的理論與現實意義；五是根據以上幾個部分的論述，對人類目前的總體狀態作了一個定性的判斷，即：我們這個時代的迷惘在於我們深陷於自戀的漩渦里難以自拔，在電子媒介以其固有的電力速度的推動下，我們走向自戀的盡頭。Histochemical staining in tl transgenic tobaccos showed that sigp1 promoter was not only organ - specific ( especially expressed in leaves and guard cells ), but also highly inducible by multi stress treatment such as drought, aba, high salinity and low temperature. quantitative analysis showed that gus activity in roots was very weak and no great changes were observed after treatment
通過對t1代轉基因苗的組織化學定位表明，該啟動子驅動的gus基因在逆境（如乾旱、 aba 、高鹽和冷）脅迫的葉片中表達，根中不表達，且老葉中的表達量高於幼葉中的表達量，說明其表達受發育階段的調控。By means of plant genetic engineering, foreign insects resistance gene can be transferred into plant cell. we cloned the cpti gene and transferred it into mustard by agrobacterium - mtdi & ted transformation method. and obtained the transgenic mustard plants. the main results are as follows : 1. isolation of cpti gene total rna was isolated from cowpea seedss cotyledons and leaves. the cpti gene fragment was amplified by rt - pcr using sequences of its two sides as primers
本實驗是利用植物基因工程獲得抗蟲的轉基因芥菜植株，結果如下： 1豇豆胰蛋白酶抑制劑基因的分離分別提取豇豆種子、子葉及葉片的總rna ，逆轉錄成cdna 。以豇豆胰蛋白酶抑制劑基因兩端的序列為引物，用rt - pcr的熱啟動方法從上述cdna中擴增出目的基因片斷。In this dissertation, influences of various factors on plant regeneration and agrobacterium - mediated transformation of tall fescue embryogenic calli were systematically studied, and thereafter, stress tolerance - related cbf1 gene guided by constituent promoter camv 35s was incorporated into genome of this grass to obtain transgenic plants with increased stress tolerances
本論文在對高羊茅胚性愈傷組織植株再生與農桿菌介導遺傳轉化的多種影響因素進行系統研究的基礎上，將組成型表達啟動子camv35s引導的耐逆相關cbf1基因導入該草種的基因組，獲得耐逆性增強的轉基因植株。Thus the resistance factor and vibration modes of the soil layer are obtained and used to analysis the pile response. by considering the interaction between the soil layer and the pile with boundary condition of continuity of displacement and equilibrium of force at the interface of soil layer and pile, the dynamic equilibrium equation of pile is solved and an analytical solution for the pile response in frequency domain is yielded, which is used to define complex stiffness and mobility at the level of the pile head. based on the convolution theorem and inverse fourier transform, a semi - analytical solution of velocity response in time - domain subjected to a semi - sine exciting force is given
首先通過引入勢函數方法對土體位移進行分解，從而將土體動力平衡方程解耦，求解得到了土層的振動模態和阻抗因子，然後利用該解以小應變條件下樁土接觸面上力平衡和位移連續條件來考慮樁土耦合作用，求解樁的動力平衡方程，得到了樁頂的頻域響應解析解、復剛度和速度導納，利用卷積定理和傅里葉逆變換，求得了半正弦脈沖激振力作用下樁頂速度時域響應半解析解。It adopted a bp neural network with a lag factor to identify the counter static model of process and decided parameters of feed - forward control through a model image, adopted a feedback controller that can adjust fuzzy logic according to the changes of object ' s parameters to improve dynamic control effect and adopted a control strategy simulating human intelligence to harmony works of system by switching among each control combination
它採用加滯后因子的bp神經網路辨識對象的靜態逆模型，並通過模型映射直接決定前饋控制的參數；用可隨對象參數變化調整模糊邏輯的閉環控制器配合前饋控制器以改善動態控制效果；用仿人智能控制策略協調系統的操作，在各種組合控制方式之間進行切換。Through the model the inverse dynamic problem of stewart platform is solved and a foundation is made for stewart platform control used for 500m lt. meanwhile all the restrained forces acted at joints are found which provide analysis condition for the mechanism design. a simplified resultant force acted on the cabin by stewart platform is given which makes it possible to eliminate the dynamic coupling between the two subsystems by means of active vibration control
基於newton - euler方法，建立了充分考慮動平臺慣性、支腿慣性、關節摩擦等因素的stewart平臺控制動力學模型，解決了已知動平臺運動規劃，求關節驅動力的動力學逆問題，為準確實現lt500m原型stewart平臺控制奠定了基礎；解出了各關節處的約束反力，為平臺機構設計提供了力分析條件；簡化給出了平臺對饋源艙的反作用力，使得採用振動主動控制技術消除兩級子系統之間的動力耦合成為可能。There are many reasons for that, for instance, the insufficient school education, improper family education and social morality, the compromise of morality, the only - child factor, adolescent problems and rebellious attitude all contribute to it
造成這種情況的原因是多方面的，學校教育工作的不足，正確家庭教育缺乏，社會整體道德失范的影響以及中學生自身存在的問題即獨生子女因素、少年期是道德形成過程中的動蕩期以及中學生的逆反心理都是其原因。Confucius, much derided by leftist writers, was a " reactionary, " in the sense that he wanted to turn back the clock of history
原注八：孔子，常常被左翼作家罵為「逆歷史潮流而動」 ，因為他主張回到古代周朝的政治體制下。Plants sense the environmental changes through many ways, and then transform these changes into the cell signals. the transcription factors accepting this signal after a series of actions will act with cis - acting element and promote the expression of stress - responsive genes, resulting in an enhance of stress - tolerance in plants
首先，植物通過多種途徑感應環境的變化，並將環境變化轉變為細胞內部的信息，經過一系列磷酸化級聯反應，將信號傳遞給轉錄因子，轉錄因子啟動耐逆基因表達，從而提高植物的耐逆性。Abstract : the multifunctional inverter power sourcethe handy inverter welding, plating & charging manchine, developed with advanced inverter and micro - electronics control techniques, adopts “ half - bridge power expansion supply midpoint voltage autocontrol setting ”, and technically and effectively having solved inverter subvision of inverter power expansion circuit for leaning magnetism, reliability of high - power inverter setting, achives combination of constantcurrent and constantvoltage export, and realizes low - voltage dc and high - voltage ac double power supply
文摘:運用先進的高頻逆變技術和微電子控制技術設計研製的逆變式多功能電源便攜式逆變焊鍍充電多用機，採用「半橋式功放級供電中點電壓自動控制調節裝置」 ，在技術上解決了逆變功放電路因偏磁而造成的逆變顛覆，有效地解決了大功率逆變器的可靠性問題；進行多種外特性的綜合設定，實現了恆流與恆壓輸出的合一；與傳統焊機相比，實現了開環和閉環狀態下都互不影響的低壓直流電瓶和高壓交流雙供電分享友人