無根狀結構的 的英文怎麼說
中文拼音 [wúgēnzhuàngjiēgòude]
無根狀結構的
英文
arhizoidal- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 根 : Ⅰ名詞1 (植物的營養器官) root (of a plant) 2 (比喻子孫後代) descendants; posterity 3 [數學] ...
- 狀 : Ⅰ名詞1 (形狀) form; shape 2 (情況) state; condition; situation; circumstances 3 (陳述事件或...
- 結 : 結動詞(長出果實或種子) bear (fruit); form (seed)
- 構 : Ⅰ動詞1 (構造; 組合) construct; form; compose 2 (結成) fabricate; make up 3 (建造; 架屋) bui...
- 的 : 4次方是 The fourth power of 2 is direction
- 結構 : 1 (各組成部分的搭配形式) structure; composition; construction; formation; constitution; fabric;...
-
In recent years, the water - saving and control irrigation technique of rice has diverted from plot experimental and demonstration to lare scale. and has got remarkable economic and social benefits. amed at the characteristics of this irrigation area, optimal selection for water - saving techniques of rice, deciding the amout of leaching water and irrigation modles, investigating the adaptability of the water - saving and control irrigation technique in saline land. studying the increase in production mechanism of the technique are important to extend the technique, to better and develop saline land as well as slick spots. according to the results of field experiments, optimization study was conducted on the water - saving irrigation technique of rice in saline land, the effects of different water - saving irrigation techniques on the physiological indexes and yield of rice were systematically analyzed. by using mutiplepurpose fuzzy optimization method, better. water - saving irrigation technique was selector out, that is. the control irrigation technique in rice. the mechanism of it was analyzed from the aspect of the physiological and ecological saving water of rice to provide the implemental process and technical point ; throgh the quantitive analysis and comparision on control irrigation and control class ( flood irrigation ), high production and quality mechanism of the technique was analyzed in terms of physiology indexes of rice, the variation of soil moisture, the pest resistance and the lodge resistance, the change of soil temperature in paddy fields. the yield constitutive factors, the quality of rice and so on. in saline land. control irrigation and intermittent leaching modles were adopted to validate the adaptability of the technique in irrigation of rice in saline land, to analyze rice ' s physiological - ecological indexes and the change of soil salt content under the conditions of control irrigation leaching of rice and and to provide control irrigation and combined modle of intermittent leaching to adapt to different conditions
本文從試驗及試驗資料入手,取得以下主要成果和結論:對鹽堿地水稻節水灌溉技術進行優化研究,系統地分析了不同節水灌溉技術對水稻生理指標及產量的影響,採用了多目標模糊優化的方法,對灌水技術進行綜合評判,優選了節水灌溉技術,論證該地區宜採用水稻控制灌溉技術;闡述控灌技術通過調節和控制水稻的需水規律,降低水稻高產情況下的無效水量消耗,從水稻生理、生態節水兩方面分析了控灌技術節水機理,針對性地總結出水稻各生育期實施節水控灌技術的步驟及技術要點;通過控灌與淹灌的定量對照比較,從根系、莖蘗、冠層葉片及綠葉動態到株高,土壤水分變化,抗病蟲害、抗倒伏能力,稻田土溫變化,產量構成因素及稻米品質等諸多方面進行動態比較,分析控灌技術高產優質機理;在鹽堿稻地採用控制灌溉+間歇淋洗模式,跟蹤測試田間水鹽變化狀況,驗證控制灌溉技術在鹽堿地區水稻灌溉中應用的適應性,通過分析水稻控制灌溉淋洗條件下水稻生理生態指標,提出優化控制灌溉+間歇淋洗組合模式,為進一步在高礦化度地區試驗水稻控灌技術奠定基礎。We find the chimeric protein in leaf epidermal cells, stomatal guard cell and root epidermal cell. actin filaments can be visualized clearly in guard cell, in guard cells of open stomata under light, actin filaments arrange reticulate randomly in cytoplasm. in guard cells of closed stomata under darkness, actin filaments arrange curly along the longitude of guard cell
在葉片的表皮細胞、保衛細胞、根部的皮層細胞中有融合蛋白的表達,保衛細胞中微絲標記狀況良好,經光誘導處于開放態的氣孔的保衛細胞微絲呈網狀結構,在細胞內無規則分佈;經黑暗誘導處于關閉態的氣孔保衛細胞中微絲束沿保衛細胞縱軸排列,呈捲曲狀分佈。Based on the basic analysis of the structure and power elements of the hybrid vehicle, this thesis presents a powertrain system with a metal pushing belt cvt, aiming to the development status and trend of the hybrid vehicle technology in our country. a rational control strategy and its work mode of this powertrain system are determined, and correlative parameters such as the engine power, the starting torque, and the differential ratio, the rated power and torque of the motor, and the ratio of the torque synthesizer are systematically designed for the changan star 6350b. at the same time, the design of these parameters is considered as the base of the simulation of the motor control system in next step
在對混合動力汽車的結構型式和動力元件進行基礎性理論分析后,針對我國汽車技術發展現狀和混合動力汽車技術的發展趨勢,設計了一種基於金屬帶式無級自動變速器cvt混合動力汽車動力傳動系統方案,根據該傳動系統方案制定了比較合理的控制策略和工作模式,並針對長安之星6350b設計了發動機功率和起始轉矩、主減速比、電機的額定功率和轉矩、轉矩合成器速比等相關參數,為下一步的電機控制系統模擬實驗打下基礎。Meanwhile, on the basis of the network topology this paper detailedly states the formation of funneling effect and origin of funneling noise, and also demonstrates its huge damage to network
漏斗噪聲的根源就在於網路的樹狀拓撲結構,並指明了漏斗噪聲可以對網路造成巨大的危害,嚴重的時候使得網路無法正常運行。In view of the deficiency of traditional control methods and the distribution trait of riverhead and consumer, this paper presents a structure system controlled by network of water supply and sets up mathematic model
根據我國供水現狀和傳統控制方法的缺陷以及水源與用戶分佈特點,提出了無線供水系統網路控制結構體系並建立了網路控制數學模型。According to the special surface structure and actualities that the city is extending along the transportation line and river region because of the restriction caused by the mountains in the two sides of every cities in qingyang. the author thinks it is not good to squeeze out the existence of cave dwellings during the course of urban construction, and it is necessary to emphasize the symbiosis between urban and cave dwellings. the author conceives that it is feasible to develop group - dwellings in the steep - sides of mountain and especially to adapt to constructing " climb - slope cave dwellings which are covered with earth "
根據慶陽特殊的地表結構和城鎮發展受兩側山體限制而沿交通線與川區無限蔓延的現狀,筆者認為在慶陽城鎮建設中不應完全排擠窯居的存在,而是要強調城鎮與窯居的共生,並設想充分利用兩側陡坡地帶發展居住組團模式,建設新型「爬坡式覆土窯洞」建築群落,這種「城鎮型窯洞」可作為城鎮建設空間橫向的延續和拓展,防止城鎮呈線狀無限蔓延的畸形發展態勢;提倡運用現代科學技術對傳統窯洞民居進行改造與創新,要加快新式窯居的試點建設;建議積極開發慶陽窯洞旅遊資源,並提出了「窯洞地產」和「綠色窯洞產業」的全新概念。The main work and conclusion for this paper is as following : according to the flashover test results of several kinds of iced insulators under positive voltage and negative voltage, this paper obtained : for the single porcelain insulator, the single glass insulator and the composite insulator bridged completely by icicle, the metal cathode ' s strong ability of emission electron is the primary reason that results in the lower negative flashover voltage ; the position difference of the high resistance district in method anode side results in that porcelain insulator cluster and glass insulator cluster have an evident effect of polarity ; when less ice and no icicle at the brim of the sheds, due to numerous non - polar arcs on the composite surface, the effects of polarity of composite insulator was lost using the test method of the average flashover voltage in the freezing period, dc flashover performances were investigated of several insulators with some typical structures and different material
本文的主要工作和結論如下:在人工氣候室內,根據不同覆冰絕緣子正、負極性下的閃絡試驗結果,得出負極性電弧金屬陰極的強電子發射能力造成了單片瓷、玻璃絕緣子及被冰凌橋接的合成絕緣子有較低負極性冰閃電壓;正極性電弧金屬陽極側產生高電阻區所處位置的差異使得瓷和玻璃絕緣子串具有明顯的極性效應;覆冰較少時,合成絕緣子表面出現數量較多的非極性電弧使合成絕緣子無極性效應。利用覆冰期內平均閃絡電壓的試驗方法,對不同材質和結構的絕緣子在覆冰、低氣壓和污穢共存環境中的直流閃絡特性進行了研究。試驗結果表明,直流平均閃絡電壓隨著海拔的升高、覆冰量的增加以及污穢度的增加而降低,且其特徵指數與絕緣子結構、覆冰量、覆冰狀態、污穢度等有關。The dissertation refers to comparatively full literatures in the field of vsc, and the development history and characteristics of vsc are summarized, and the elementary concepts, elementary definitions, elementary properties, elementary principles and design methods are particularly introduced, and the causes of the chattering phenomenon are systematically analysed, and the study status of the chattering phenomenon and the main methods to eliminate the chattering are elaborated. for the deficiencies of traditionary methods, three improved methods are developed, which are improved exponent reaching law solution, variable boundary layer solution and the solution by adding an auxiliary continuous control term. for uncertain linear systems, an adaptive fuzzy integral variable structure control stategy ( afivsc ) is put forward to eliminate the chattering around the sliding plane, which introduces fuzzy logic to soften the non - linear discontinuous sig nal in the control variable and utilizes adaptive theory to adjust output membership function according to how much the uncertainty of the system is
比較全面地查閱了關于變結構控制理論的文獻,總結了滑模變結構控制的發展歷史和特點,詳細介紹了變結構控制的基本概念、基本定義、基本性質、基本原理以及設計方法;系統分析了變結構控制系統抖振產生的機理,並闡述了國內外目前對抖振問題的研究現狀以及消除抖振的主要方法;針對傳統抑制和消除抖振方法的不足,改進了傳統方法,得到了三種新的消除抖振的方法? ?即改進的指數趨近律法、可變邊界層法和附加連續項法;針對不確定性線性系統,在變結構控制策略中引入模糊邏輯和自適應理論來消除滑動平面上的抖振,提出了一種自適應模糊積分變結構控制方案( afivsc ) ,利用模糊邏輯來柔化控制量中非線性不連續部分,採用自適應理論,根據系統不確定性大小在線調整模糊輸出量的隸屬函數,另外,鑒于模糊控制本質上是有靜差的,所以本文選擇了帶積分項的切換函數,由於積分項的存在使系統較正為無靜差系統。The tap - changer is made with solid state relay as its working mechanism and controlled by microprocessor. this switch has totally cancelled the mechanical drive organization, by the microprocessor according to the voltage of second side microprocessor decide the working condition of solid state rely, high regulation speed, need not transition resistor, rush current is low. operating frequently ; there is no electric arc to produce, can put in the fuel tank of the voltage transformer directly ; the structure is simple, the fabrication cost is low, benefit and use widely among the voltages transformer of distribution
其中的有載調壓分接開關,它是一種完全由固態繼電器作為分接開關執行機構,由單片機控制的有載自動調壓的變壓器分接開關。該開關完全取消了機械傳動機構,由單片機根據變壓器二次側電壓的高低,決定與變壓器各分接頭聯接的固態繼電器的工作狀態。調節速度快,改變分接頭時不需過渡電阻,沖擊電流小,可頻繁操作;無電弧產生,可以直接放在變壓器油箱中;結構簡單,造價低,便於在配電變壓器中推廣使用。( 2 ) for linear systems with time - varying delays both in state and control, and subject to norm - bounded parameter uncertainties, the problems of robust stabilization and robust h control are studied and delay independent results are derived by constructing proper lyapunov function to deal with the time - delay, also by using riccati equations method and inequalities transformations to deal with the uncertainties. according to the transform function of the system, frequency domain method and time domain method are combined together to analyze the robust h control problem of the uncertain time - delay system
( 2 )研究了一類狀態和控制同時具有時變時滯以及參數時變有界不確定性系統的時滯無關的魯棒鎮定及h控制問題,採用把時滯因素和不確定因素分開處理的思路,通過構造適當形式的lyapunov函數來處理時滯,採用不等式變換及riccati方程方法來處理不確定性,採用頻域與時域相結合的方法根據系統的傳遞函數分析時滯不確定系統的魯棒h控制問題。This paper is first described backgroud and currence of gsm public phone, second is described technological requirement by ministry of information industry, third is detaiedly described the solution based on 32 - bit embedded system, subsequently is briefly described the embedded development platform - - sic33 on which the solution is based, then is detailedly described the hardward drivers, by which a test report is followed to prove the solution is viable, finally some conclusion is concluded
本論文首先說明gsm無線公話產生的背景及現狀,第二章說明根據信息產業部和市場反饋制定的詳細需求,第三章說明確定的系統總體設計方案,第四章簡要說明構建該方案所用的sic33嵌入式系統平臺,第五章詳細說明作者負責設計的硬體驅動部分,第六章給出實際產品的測試報告,最後對本論文進行總結。The experiment proved the adjustments is effective. according to the fact that the structure of the film causes the wavelength shift, we prepared the shift - free polarizers at 1054nrn with plasma - iad
根據膜層的柱狀多晶結構是引起工作波長漂移的主要因素,利用等離子體輔助沉積制備出了中心波長為1054nm的無漂移偏振膜。In the area of seasonal frozen region, the road takes place the cycle of freezing and thawing variety with the season, the mainly disease harm generating from this is the frost heave and frost boiling etc. . the disease harm belongs to the heat transfer problem, but the effective measure to prevent and cure the frost boiling has something to do with the gradient of temperature and humidity
在季節性凍土地區,道路隨季節交替發生凍融循環變化,由此產生的病害主要是凍脹和翻漿等。病害的形成歸根結底屬于熱質遷移問題,而防治凍脹與翻漿的有效措施無不與溫度和濕度有關,搞清冬季凍結過程道路結構體系溫度、濕度及應力的狀況,是正確設計路基路面,防治凍脹和翻漿的先決條件。According to the object and principal of this rural power network building and reconstruction, combining with the specific policy of fuxin ' s structural adjustment in economy, and based on sufficient consideration of the current situation of fuxin ' s rural power network, and the experiences of myself, and after referring to a great deal of technical information, i have done the technical and economic analysis concentrated on the following aspects, such as network arrangement optimizing, building and reconstruction of transformer substation, the building and reconstruction of low voltage power network, the technical and economic analysis of transformer renewing, the inefficient power compensation in rural power network, therefore concludes the direction of fux in ' s rural power network building and reconstruction
論文根據此次全國農村電網建設與改造的目標和原則,結合阜新地區經濟轉型的具體方針,在充分考慮阜新地區農村電網的實際現狀的基礎上,本人根據自己多年的工作經驗,在查閱了大量技術資料的基礎上,就農村電網結構優化、變電所的建設與改造、低壓配電網的建設與改造、變壓器更新技術經濟分析、農網的無功補償進行了詳盡的闡述分析。確定了阜新農村電網建設與改造的方向。After analyzing state - of - the - art of active and semi - active structural control in the world, the dissertation focus on semi - active structural control based on the magneto - rheological dampers. and a semi - active control method is put forward, which is based on lq ( linear quadratic ) optimum control theory, and imitates the optimum active - control force with bound value to control the structural response. then two structural models " simulation is conducted to compare the effectiveness and usefulness of the semi - active control with the passive control, and present the normed criteria to analysis the results
首先分析了mr可控阻尼機理,及mr阻尼器的兩種力學模型;然後根據最優控制理論中的二次型問題,提出採用限值擬合連續最優主動控制力的半主動控制策略,並以此控制方法針對半主動控制的強非線性控制問題,對兩種結構模型進行了模擬計算,並將半主動控制下的結構響應與採用摩擦型阻尼的被動控制結構及無控結構進行了詳細的比較分析,對計算結果提出採用范數指標進行補充評價的綜合評價方法;通過三種控制狀態下的模擬計算驗證了結構半主動控制的有效性與實用性。分享友人