自然振動型 的英文怎麼說

中文拼音 [zìránzhèndòngxíng]
自然振動型 英文
natural mode of vibration
  • 自 : Ⅰ代詞（自己） self; oneself; one s own Ⅱ副詞（自然;當然） certainly; of course; naturally; willin...
  • 然 : Ⅰ形容詞（對; 不錯） right; correct Ⅱ代詞（如此; 這樣; 那樣） so; like that Ⅲ連詞[書面語] （然而）...
  • 振 : 動詞1. （搖動; 揮動） shake; flap; wield 2. （奮起） brace up; rise with force and spirit
  • 自然 : 自然at ease; natural; free from affectation
  • 振動 : vibrate; vibration; vibrance; vibrancy; vibra; vibes; shaking; rumble; jitter; chatter; sway; jar...
  1. This thesis explains the necessity of the character recognition technology of the computer at first, describe the meaning in which the handwritten numeral discerns ; pretreatment technology of handwritten numeral recognition, including two value, line segmentation, word segmentation smooth, removing noising, standardization and thinning are discussed two value concretely discusses whole threshold value, some threshold value, dynamic threshold value and utilize space information to carry on threshold, which are several kinds of common method of choosing threshold value, especially utilize space information to carry on threshold value is describe in detail ; adopting to the foundation of thinning based on mathematics morphology, thinning algorithm of serials same and thinning algorithm of protecting shape are discussed ; afterwards, according to principle ' s diagram of the on - line character recognition, by analyzing the structure feature of the handwritten numeral, this thesis has proposed the online recognition te chnology of the free handwritten numeral based on the stroke feature and the online recognition technology of the free handwritten numeral based on the multistage classifying device. detail narrated noise removing, stroke characteristic definition and discernment, distance criterion of whole word match ; then under the foundation of handwritten numeral segmentation, off - line handwritten numeral recognition is researched. especially minimum distance classifying device, tree classifying device and adaptive resonance ( art ) network classifying device is discussed at the same time, believes degree analyses are introduced to integrate a lot of classifying devices ; at the end, the typical application of the handwritten numeral recognition was briefly narrated, its application in extensive data statistics, financial affairs, tax, finance and mail sorting have been explored

    二值化時對整體閾值二值化、局部閾值二值化、動態閾值二值化和利用空間信息進行閾值選取幾種常用的閾值選取方法進行討論，特別對利用空間信息進行閾值選取進行了詳細論述；在對通過對基於數學形態學的細化的基礎上，討論序貫同倫形態細化演算法和保形的快速形態細化演算法；然後依據聯機字元識別原理框圖，分析了手寫數字的結構特點，提出了基於筆劃特徵的任意手寫數字在線識別技術和基於多級分類器任意手寫數字在線識別技術，對其中涉及的筆劃識別前的噪聲處理、筆劃間特徵量的定義及識別、整字匹配的距離準則進行了詳細敘述；繼而在對手寫數字的分割的基礎下對脫機手寫數字識別進行了研究，對基於最小距離分類器字元識別、基於樹分類器的字元識別、基於自適應共振（ art ）網路的字元識別分別進行了詳細討論，並引入置信度分析將多個分類器進行了混合集成；最後簡單闡述了手寫數字識別的典型應用，對其在大規模數據統計、財務、稅務、金融及郵件分揀中的應用進行了探索。
  2. During the circuit design, the author analyzed the basic principle of the direct current motor, pwm control, h - bridge power driver, and two control techniques of h - bridge power drive circuit, designed its general structure, so the feasibility of the design is confirmed. then, reference, oscillator, power dmos gate drive circuit ( charge pump, bootstrap ), and dead time generation circuit are designed and analyzed in the sub - circuits. a current - controlled oscillator is presented in this thesis

    在電路設計中，作者介紹了直流電機的工作原理和數學模型、脈寬調制（ pwm ）控制原理、 h橋電路基本原理和h橋功率驅動電路的兩種控制模式，設計了驅動電路的總體結構，給出了電路的功能模塊，確定了設計的可行性，然後在子電路模塊中，重點分析設計了基準源電路、振蕩器電路、高端功率管柵驅動電路（電荷泵及自舉電路） 、低端功率管柵驅動電路和死區時間產生電路。
  3. The article has researched the intention of agricultural industrialization which is guided by market and mainstay enterprises, based on agricultural product base organized by a lot of families, and characterized by joint management and mutual benefit. it also realized production specialization, product commercialization, service socialization and etc. the article has also researched the existing conditions of agricultural industrialization both at home and abroad. although it is different in national conditions and actual practice, the developed countries follows the market economic law and naturally steps on the road of agricultural industrialization. as the continuous reforming and opening up, china actively explores and enhances the management level of agricultural industrialization. the writer uses system changing theory, scale management theory, trade expense theory. market system theory and industrial economics theory, to put forward the main type of mainstay enterprises, which is divided by ownership, organization form, contact form and product. the writer thinks that development of mainstay enterprises can promote effective joining between small production and big market, the developing of high - benefit agriculture, establishing trade / industry / agriculture operation system, region economics and joining process between urban area and rural area. the existing conditions in strengthening the mainstay enterprises in zhaoyuan embodies continuous expanding in scale. continuous widening in fields, continuous enhancing in benefits, continuous improving in techology and quality. by finding the problem and shortage in product quality, developing ability and scale strength, the article has put forward the following views : face to market and enhance quality and techological content of agricultural products ; enforce flexible policy and investments ; establish fair and reasonable benefits joining system. the article has also put forward the countermeasures and suggestions on enhancing the enterprises ' management level

    文章研究了農業產業化經營的內涵，明確其以市場為導向、以龍頭企業為依託、以一大批農戶組成的農產品生產基地為基礎，形成農工商有機結合、風險共擔、利益均沾的本質特點，表現出生產專業化、經營一體化、企業規模化、產品商品化、服務社會化等特徵。分析了國內外產業化經營的現狀，認為盡管各國的國情不同，具體的做法和叫法不盡相同，但是經濟發達國家都遵循市場經濟規律，很自然走上了農業產業化經營的道路，發展中國家紛紛仿效，中國也隨著改革開放不斷深入，積極探索發展提高農業產業化經營水平。作者運用制度變遷理論、規模經營理論、交易費用理論、市場機制理論和產業經濟學理論，提出了龍頭企業從所有制形式、從組織形式、從聯系方式及從產品上劃分的主要類型；認為發展龍頭企業有促進小生產與大市場的有效對接、推動優質高效農業縱深發展、建立貿工農一體化運行機制、振興區域經濟、加速城鄉一體化進程等作用；考察了招遠市壯大龍頭企業推進農業產業化的現狀，表現在規模不斷擴大、領域不斷拓寬、效益不斷提高、技術不斷改進、質量不斷提高等方面；找出了龍頭企業產品質量上、開發能力上、規模實力上和行業自律上的問題和差距，提出了要面向市場，努力提高農產品的質量和科技含量，多策並舉，搞活投入機制，建立公平合理的利益聯結機制，加強行業自律，提高企業經營管理水平等對策和建議。
  4. At the same tune, the paper analyses and discusses the control projects of the above parts. as for the hardware of the control system, on principle of reliability and considering the badly working condition of the vibratory roller, the paper chooses the special controller sp ecializing in the realm of construction machinery ' s control system in order to insure the reliability of the control system and simplify it. about the control quality of the system, the paper establishes the mathematical modes of the frequency modulation system and the amplitude modulation system, analyses the irrationality of the amplitude modulation project, puts forward to apply proportional - integral - differential controller ( pid controller ) to the traveling system and frequency modulation system

    作為控制系統的方案設計的基礎，本文首先對影響壓實效果的振動參數進行了分析；然後針對智能振動壓路機的功能要求，將控制系統分為壓實參數的自動和手動控制、行走控制、轉向和蟹行控制以及智能灑水控制等幾個部分，對各部分的控制方案進行了分析對比和論證；在控制系統硬體設計方面，以可靠性為原則，考慮到振動壓路機的惡劣工況，選擇了專用於工程機械控制領域的專用控制器，使系統的硬體設計得以可靠性保障和簡化；針對控制系統控製品質問題，建立了調頻和調幅系統的控制模型，對調幅系統的控制不合理性進行了分析，提出採用pid控制器對行走和調頻系統進行校正；在軟體設計方面，對各個控制部分進行了軟體編程流程圖設計。
  5. Vibration - resisting electricity contact pressure meter is used for occasion by environment quake vibration excle in pulsaling lash by medium - resistant and suddenly unload ; usually it is make use of form a complete set by relevant eletric device ( such as relay and contact appliance and so on ). so realized attain auto - control post a letter ( give an alarm ) for pressure system by survey. compare with ordinary for a special model electricity contact pressure meter, zhe indicator ' s function by survey pressure more stabilize, more accurate, and powerful of resist eletric arc, and it is use for even more long life

    耐振電接點壓力表，適用於環境劇烈振動場合，可耐介質的高強脈動沖擊及突然卸荷；通常該儀表經與相應的電氣器件（如繼電器及接觸器等）配套使用，即可對被測（控）壓力系統實現自動控制發信（報警）的目的，與普通專用型電接點壓力表相比，指針測壓性能更穩、準，且抗電弧強大，使用壽命更長。
  6. This project name is " basic technique research and vibration isolation theory with bionic mechanism for devices of high precision ". this thesis is mainly in two aspects : theoretical analysis and experimental research. it is composed of the characteristic of power transmission based on the smr model, control theory of vibration isolation for micro - manufacturing platform

    本學位論文結合國家自然科學基金項目「精密裝置仿生隔振系統理論及基礎技術研究」 （ no . 50075078 ） ，從理論分析和實驗研究兩方面，對smr模型的功率傳遞特性、微製造隔振平臺控制理論和主動振動控制技術進行了深入、系統的研究。
  7. Keywords : micro - gyroscope, silicon single crystal, three - axis angular - rate sensing, natural frequency and mode shapes

    關鍵詞：微型陀螺儀、矽單晶、三軸角速率感測、振動自然頻率與模態。
  8. The so - called automatic recognition of modulation ( amr ) schemes automatically classifies the modulation types from the samples of received signal by abstracting the related features such as amplitude, frequency, and phase, followed by employing proper recognition algorithms based on the fast digital signal processing techniques and advanced computing technology. the result of amr can be used in the following processing blocks such as demodulation, supervision processing and anti - interference processing and so on

    所謂調制類型自動識別（ amr ）是根據接收信號樣本提取出振幅、頻率和相位的特徵參數，然後藉助信號處理技術和計算機快速處理能力，採用合理演算法進行處理，從而實現對未知已調波調制類型的自動識別，為后繼的解調、監控、抗干擾等處理奠定基礎。
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