field-defect 中文意思是什麼

field-defect 解釋
視野缺損
  • field : n 菲爾德〈姓氏〉。n 1 原野,曠野;(海、空、冰雪等的)茫茫一片。2 田地,牧場;割草場;〈pl 〉〈集...
  • defect : n. 1. 缺陷,缺點,弱點;短處。2. 不足,缺乏。vi. 叛變;逃走。 He defected to the West. 他叛逃到西方。
  1. The velocity field has been designed in this article on defect of rolling workpiece surface about cross wedge rolling technique in the process of forming axial symmetry spare parts by result of simulated experiment of consult document [ 4 ]

    摘要依據文獻[ 4 ]的模擬實驗結果,擬定了楔橫軋工藝成形階梯軸類件時軋件表面出現表面缺陷(蛇皮狀或魚鱗狀缺陷)時的金屬流動速度場。
  2. Specifically, to a test particle, its mass defect is am = m _ ( 0 ) - m, where mo and m are the mass of the particle when it is in the infinity and in the grav - itational field, respectively. to a spherical shell ( or a solid sphere ), its mass defect is am = m _ ( 0 ) - m, where mo is the total mass of the matter scattering in the infinity and m is the mass of the gravitational spherical shell ( or the gravitational sphere ) combined by the matter scattering in the infinity

    具體來說,對于試驗粒子,當它由無窮遠處運動到引力場中某點時,其質量由m _ 0變為m ,發生的質量虧損為m = m _ 0 - m ;對于球殼或固體球,當組成球殼或固體球的這些物質分散在無窮遠處時,總質量為m _ 0 ,當這些分散在無窮遠處的物質結合成球殼或固體球時,其質量變為m ,發生的質量虧損為m = m _ 0 - m 。
  3. In the field of tribolgy, the application of traditional oil - soluble additives of antiwear and reducing friction has been confined due to itself defect

    在摩擦學領域中,傳統的油性劑和極壓抗磨添加劑由於自身的缺陷其應用受到很大限制。
  4. The alternating current in the alternating current magnetic field leakage testing ( ac - mfl ) is one of the magnetizing manners. the sensitivity is very high to the defect of surface and the near to the surface of the workpiece. it is one of the developing directions of nondestructive testing ( ndt ) domain

    交變漏磁檢測技術中的交變是漏磁檢測技術中的一種磁化方式,該技術對工件表面及近表面缺陷具有較高的檢測靈敏度,是無損檢測領域未來主要發展方向之一。
  5. The another one, the system of most private enterprise is non - consummate, such as not consummate at the field of management structure, bestirring and inhibiting rules, stratagem and management, and result in the poor core competence. for examples, some leaders of private enterprise are arbitrary and do n ' t believe in other people to manage work ; only trust his connection and private friends to be in charge of management ; some decision made according to feeling only, not according to scientific judgment ; in defect of bestirring and inhibiting rules. . so on. there are total five chapters in this article

    究其原因,一方面是因為目前中國保護民營企業的制度機制還不完善,民營企業還無法取得和國營企業相同的政治待遇,另一方面是由於多數民營企業自身制度缺損,表現在企業治理結構、激勵約束機制、戰略管理等方面極不完善,從而造成的核心競爭力普遍低下,如:民營企業家決策中獨斷專行,對他人不能放心放權;民營企業經營管理中太相信親戚和朋友;部分決策聽任感覺,缺乏科學論斷;缺少激勵約束機制等。
  6. This paper, firstly, introduces some basic nondestructive tests, shows the background of the subject about the test for the defect of sucker rod, by comparing with the other nondestructive tests, proves the advantage of eddy - current test, then beginning with maxwell equation in electromagnetic field theory and combining with the idea model of defect, this paper proves that the feasibility of eddy - current test technology in multi - parameter and multi - frequency which applied in the test for for the defect of sucker rod

    本文首先介紹了無損檢測技術的幾種典型方法,並給出了抽油桿裂紋檢測這個課題的背景,通過同其它幾種無損檢測技術的比較,給出了電渦流技術的優越性。然後從電磁場理論中的麥克斯韋方程出發,結合裂紋的理想模型,從理論上證明了電渦流多頻率多參數檢測技術在抽油桿裂紋檢測中的可行性。
  7. The visual change from being unaware of visual defect to detecting binocular visual loss indicated the importance of measuring monocular visual acuity and visual field to clinical ophthalmologist

    病人臨床視力、視野變化情形,向未察覺兩眼視野的缺損至突發性兩眼視力的喪失,提醒臨床眼科醫師單眼視力、視野測量的重要性,尤其是周邊視野的評估。
  8. The main achievements are as follows : the theory models of defect mfl field are set up ; based on the magnetic dipole model and finite element model, the distribution of defect mfl field is simulated in the dissertation ; the component of flux density ( magnetic filed ) parallel to the surface of pipe is detected by a circumferential array of hall probes ; the factors including defect geometry parameters, defect surface angle and shape, pipe material, field intensity, vehicle velocity, background magnetization, operating pressure and remanent magnetization and so on influence the mfl signal characteristics

    採用霍爾元件作為缺陷漏磁檢測傳感器,獲得管道軸截面漏磁場切向分量的漏磁信號;研究了缺陷外形尺寸、缺陷傾角和形狀、管道材質和磁化強度、檢測儀移動速度、管道背底磁場、管內壓力和剩磁對漏磁信號的影響。提出了各通道增益放大、各路漏磁信號偏離調整、波形微分、數字濾波和平滑等漏磁信號預處理方法;分析了等空間采樣的漏磁信號轉換為等時間采樣信號的必要性,研究了漏磁信號的小波去噪方法。
  9. The basic principle of operation of coordinate legal control that it can ensure the validity of actual macro control is those : through the function of its communication and coordination, and under the coordination, it leads the limiting strength to the field of macro - control. this prevents the government to misuse its power, and it also improves the regulating ability of the government. moreover, the basic essence of macro - controlled substantive law can be found and the defect of substantive law to macro - control actions also can be supplemented

    其對宏觀調控合法性保障的基本原理就在於,通過其溝通協調等功能,引導制約力量在協調精神的指引下進入宏觀調控領域,既限制政府宏觀調控濫權行為的發生,又促進政府自身調控能力的改善,並且在宏觀調控的過程中,不斷發現宏觀調控實體法的基本精神,彌補實體法律對宏觀調控行為控制力的不足。
  10. It dues to the main loss mechanism of plct ceramics is caused by the defect dipole, which movement is a heat - activation process under the alternating electric field. 4

    這是因為plct ( )陶瓷材料中缺陷偶極為主要損耗機制,缺陷偶極在交變電場作用下的運動是一個熱激活過程。
  11. Abstract : it was deduced that the shapes of magnetic particle indicationsof point - type defects on workpiece surface depended on the resistance of carrier medium, and their dimensions depended on the volume of the defect equivalent cuboid, the magnetising characters of workpieces and magnetic particles, the strength of magnetic field, the lengths and sections of magnetic particles and the resistance character of carrier medium

    文摘:推斷出工件表面點狀缺陷磁痕的形狀取決于磁粉載體的介質阻尼力,磁痕大小取決于缺陷等效長方槽的體積、工件和磁粉材料的磁化特性、磁場強度、磁粉長度和橫截面積以及載體介質的阻尼特性等。
  12. The general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges

    簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展,主要介紹磁偶極子,有限長磁偶極線和極帶,磁粉顆粒的受力,磁化場方向對磁粉顯現缺陷的影響,棒料、管材和方鋼的縱向磁化,工件表面溝槽深度對其引起漏磁場的影響,周向磁化時工件底棱上的雜亂顯示成因,圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。
  13. This dissertation concentrates on the difficult problems that the pipeline or pipe defects are not estimated or evaluated quantitatively, intelligently by mfl ( magnetic flux leakage ) inspection method. from the practical demand, theoretical analysis and experiments or testing, the mfl inspection technology of pipeline or pipe defects are explained, summarized in detail in the whole paper, at the same time, the relationship between the mfl field distribution, the mfl signal shape and the defect geometry or severity, the analysis of the mfl data and the compensation of influencing the relationship factors, signal feature extraction, intelligent recognition of defect parameters and so on are studied systematically

    論文針對管道(鋼管)缺陷漏磁檢測定量化、智能化的難題,緊密結合檢測現場實際需要,通過理論分析和大量實驗,系統分析總結了管道(鋼管)缺陷漏磁智能檢測技術,並在缺陷漏磁場分佈以及缺陷漏磁信號與缺陷外形參數間的關系、缺陷漏磁信號分析、漏磁信號影響因素補償、缺陷漏磁場波形特徵提取和缺陷外形尺寸定量識別等方面進行了深入研究,主要成果和創新如下:引出磁偶極子模型近似分析常見缺陷漏磁場,針對磁偶極子模型的不足,將有限元方法應用到缺陷漏磁場分析,實現了常見管道樣本缺陷漏磁場的模擬。
  14. Nondestructive testing is a very important and difficult research lesson about the defect of concrete structures. this paper mainly measures the stress waves conveying in concrete structures and the depth of surface - opening cracks in concrete plates by using impact echo method after carefully reading a lot of articles about the state and the abroad of concrete nondestructive in the field and incorporating the special conditions on the laboratory

    混凝土結構物的缺陷的無損檢測是一個非常重要而又非常困難的研究課題,本論文在大量參閱了國內外關于混凝土結構物無損檢測的研究資料后,結合本實驗室的具體條件,應用沖擊反射法集中對應力波在混凝土板塊內傳播速度和混凝土結構物內部開口裂紋深度的測量等一系列問題展開了研究。
  15. In the second chapter we discuss the mass - defect in the schwarzshild field and r - n field, and if a = 0 the latter will reduce to the case in the former

    第二章詳細討論了史瓦西場中及r - n場中的質量虧損效應,且當= 0時,後者就會退化為前者的情況。
  16. The whole system is self - design with advanced design method and measure in software and hardware, which effectively overcome current technical defect of well - logging in liaohe oil field

    整個系統全部自行設計開發,在軟硬體上均採用先進的設計方法和測量手段,解決了遼河油田目前測井技術存在的不足。
  17. Abstract : the general situation and progress of magnetic dipole theoryresearch during recent twenty years in china were introduced briefly including magnetic dipole ; linear and strip magnetic dipoles of finite lengths ; magnetic force on a magnetic particle ; the effect of magnetizing field orientation on the revelation of defect by magnetic particles ; longitudinal magnetization of rod, tube and cuboid steel ; the relationship between the slot depth in a workpiece and magnetic leakage field ; the cause of stray magnetic pattern along base apex edges of a workpiece magnetized circumferentially ; the analytic expression for the magnetic leakage fields inside and outside the slot on the cylindrical surface of a disc ; and the effect of a needle - like magnetic medium on the magnetic force between two point magnetic charges

    文摘:簡述20年來中國無損檢測中磁偶板子理論研究的概況和進展,主要介紹磁偶極子,有限長磁偶極線和極帶,磁粉顆粒的受力,磁化場方向對磁粉顯現缺陷的影響,棒料、管材和方鋼的縱向磁化,工件表面溝槽深度對其引起漏磁場的影響,周向磁化時工件底棱上的雜亂顯示成因,圓盤邊緣柱面上溝槽內外漏磁場的解析表達式和針狀磁介質對兩個點磁荷間磁力的影響等。
  18. With the development of microelectronic products ( integrated circuit, printed circuit board, etc ) directing to high density, thin separation and low defect ratio, its inspection requirement is higher on aspects of precision, efficiency, universal, and intelligence etc. therefore, this paper researched on the general key techniques in the field of microelectronic products vision inspection, covered the shortage of traditional inspection on aspects of fast and precision locating, image mosaic, and fine defect test, completed theory study on physical dimension and defect inspection of microelectronic products based on machine vision, developed the prototype and used lots of experiments to prove its correctness and feasibility

    隨著微電子產品(集成電路晶元、印刷電路板等)向著高密度、細間距和低缺陷方向發展,對其檢測技術在精密、高效、通用和智能化等方面提出了更高要求。由此,本文對微電子產品視覺檢測中的關鍵技術進行研究,彌補了傳統檢測在精確快速定位、圖像全景組合和精細缺陷檢測等方面的不足,最終完成基於機器視覺的微電子產品外形尺寸和缺陷檢測的理論研究和樣機研製,並進行了大量實驗證明其正確性和可行性,力圖為我國自主創新的微電子產品視覺檢測技術提供理論和實際借鑒。
  19. It is a new subject that applying modern education technology compensate visual defect in the field of the visually impaired education

    運用現代教育技術進行視力缺陷補償在盲教育領域是一個全新的課題。
  20. Except that, many problem can " t be solved, such as the conflict of ccd " s high resolving power and big vision field, how to control the automatic gathering of pcb " s image using master and slave computer parallel structure, how to inspect the defect of pcb such as width of circuit, distance of circuit, losing circuit and so on. the research aim at how to combine computer vision, precise machine, automatic control with image process, at how to resolve the contradiction between high resolving power of image gathering and wide vision field, at how to realize automatic mosaic of image, at how to realize precise orientation of two dimension worktable, at how to realize communication between master computer and slave computer, and at how to inspect the defect of line width, line distance and losing

    除此以外,還有ccd高解析度和大視場之間的矛盾,上下位微機并行系統如何控制印刷電路板圖像自動採集,印刷電路板的線寬、線距和丟失線條等缺陷如何檢測等問題還懸而未決,本課題將就如何結合計算機視覺技術、精密機械技術、自動控制技術和圖像處理技術,如何解決圖像採集高解析度與大視場之間的矛盾,如何實現圖像的自動拼接,如何實現兩維工作臺的精確定位,如何實現上下位機的準確通訊,如何檢測線寬、線距缺陷和丟失線條等問題展開重點研究。
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