field distortion 中文意思是什麼

field distortion 解釋
場失真
  • 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...
  • distortion : n. 1. 歪扭，扭曲。2. 【電學】（信號、波形等的）失真；【物理學】（透鏡成像產生的）畸變；【醫學】扭轉，變形。3. 竄改，歪曲，曲解。adj. -al
  1. For obtaining the numeral solutions of round elastic plates in axisymmetrical deformation with varying - thickness in nonlinear deformation in the unsteady electromagnetic field and mechanical field, by establishing the equations of motion, the equations of distortion, the equations of lorentz force, the equations of electronic dynamic mechenical, and adopting iterative method, we gained the nonlinear magneto - elastic calculation method and outcome of current - carrying shell, and gained the influencing degree toward mechanical parameter of varying thickness round ferreous plates in the electromagnetic field and mechanical field

    摘要為了獲得內邊界固定的環形導電薄板在均布力與橫向磁場作用下的變形問題的數值解，通過建立運動方程、變形方程、電動力學方程和洛侖茲力方程，運用迭代法得出了載流板殼的非線性磁彈性的計算方法和結果，以及機械場、電磁場對鐵質變厚度圓板各力學參量的影響程度。
  2. Image coordinate and galvanometer pendular angle are kept in the computer according to the f9 field lens characteristic, enter pupil excursion and f6 characteristic error are ignored, that the image of laser scanning point move acceding to unlinearity relation is deduced theoretically. for deducing the distortion, error compensation is considered in the software

    像點坐標與振鏡擺角按f物鏡特性的線性關系存儲在計算機，在忽略了入瞳漂移和f特性誤差后，從理論上推導出二維垂直振鏡分佈中激光束掃描點的像點按照復雜的非線性關系運動，為了減少幾何畸變，在軟體設計中給出誤差補償。
  3. To reduce the marking distortion, using the vertical 2 - dimension galvanometer distributing and f field lens focalize, the distance of the second galvanometer to the machining plane is the focus f. to avoid too hign temperature to distroy the resonance cavity because of too long marking time, cooling system and self - protector is used in the design

    為減少打標畸變，採用垂直二維振鏡分佈， f物鏡聚焦，將激光束經第二個振鏡反射後到加工平面的距離為焦距f ，為了避免打標時間過長，溫度過高破壞諧振腔，在設計中加上冷卻系統和自我保護裝置。
  4. In the application of mini - micro - robot visual perception, there is a need for fish - eye lenses for capturing wide field of view for navigation. though fish - eye lenses provide a wide field of view ( 180 ), they introduce significant distortion in images and the acquired images are quite warped, which makes conventional camera calibration algorithms no longer work well. this paper presents an accurate calibration framework for fish - eye lens ( a high distortion lens ) camera stereo vision system. the accurate calibration model is formulated with radial distortion, decentering distortion and thin prism distortion based on the fisheye deformation model. using fish - eye and non - linear camera model, the author employs levenberg - marquardt method to realize precise non - linear calibration for wide - view - scene dense depth image recovery

    魚眼鏡頭成像立體視覺系統在微小型機器人視覺導航和近距離大視場物體識別與定位中有著廣泛的應用.盡管魚眼鏡頭攝像機具有很大的視場角（接近180 ） ，但同時也引入嚴重的圖像變形，常規的攝像機標定方法無法使用.該文提出一種標定魚眼鏡頭攝像機立體視覺系統的方法.在魚眼鏡頭變形模型的基礎上，通過考慮魚眼鏡頭成像的徑向變形、偏心變形和薄棱鏡變形，建立了魚眼鏡頭成像的精確成像模型，然後，利用非線性迭代演算法，精確求解攝像機外部參數、內部參數.實驗表明，使用該方法得到的立體視覺系統參數滿足精確恢復大場景稠密深度圖的要求
  5. Since the departing process of fire work departing installation is a highly nonlinear transient dynamic process, it relates to many speciality field, and the characteristic of the material is very complex under the highly rate and highly pressure distortion, the design methods and the design formulae by experience which has been used for a long time are very limited, the facter which truly affect the departing process of fire work departing installation cannot been reflected in the design calculation, the structure modelling and optimization of the fire work departing installation is cannot been carried out by the traditional optimization method

    由於火工分離裝置的分離解鎖過程是一個高度非線性的瞬態動力過程，涉及多個學科和專業領域，而且材料在高速高壓條件下瞬時性態十分復雜，長期以來所沿用的經驗設計方法和設計經驗公式的局限性很大，對火工分離裝置分離解鎖過程一些實際有影響的因素不能定量地反映到設計計算中來，採用傳統優化方法無法實現火工分離裝置的結構優化建模和計算。
  6. Moreover, the higher harmonic order is, the lower distinguishability, and, as a result, the assessment accuracy becomes bad. considered its prominent localization both in time - domain and in frequency - domain, wavelet is used to the field of assessing harmonic impedance for the first time. we choose chaari wavelet because of its special band frequency characteristic, which can stratify signals synchronously and locate the distortion time precisely in assessing harmonic impedance

    選取chaari小波為母小波，利用其特殊的帶通特性，對在公共連接點（ pcc ）采樣得到的電壓，電流畸變波形進行同步分層， 「突出」信號的畸變部分，提高了被分析信號的「信噪比」 ，以利於諧波阻抗估計準確度的提高。
  7. Numerical examples show that, pulse deformation and broadening, spectrum redshifting, narrowing and distortion take place with increasing diffraction angle in the near field, and the pulse form changes with propagation distance in the near field, but is preserved in the far field

    數值計算例說明在近場隨衍射角的增大會出現脈沖變形、加寬、譜紅移、變形、變窄等特性，脈沖形狀在近場隨傳輸距離變化而變化，但在遠場保持不變。
  8. Although the knowledge of wind effects on tall buildings has significantly improved over the last decades, an understanding of the mechanism that the atmospheric flow field to various wind include effects on structures has not been developed sufficiently for formulation of functional expressions. not only is the wind approaching a building complex, but the flow pattern generated around a building is complicated by the distortion of the mean flow field, the flow separation, the vortex formation, and the wake development

    在過去的幾十年裡，雖然人們對高層建築風效應的了解已有顯著提高，但對大氣流場與結構物各種風致響應的關系還不能用解析表達式加以描述。由於平均流場的奇變、流動分離、旋渦形成以及紊流的發展，不僅使得流向建築物的風，而且使得繞建築物的流譜變得十分復雜。
  9. Bone will produce electrical potential when subjected to deformation. it is necessary to research the role of the potential in bone growth, remodeling. according to the physiological structure of bone tissue, the biphasic porous medium model, which is based on the mixture theory in continuum frame, is established to depict the distortion and stress field of bone matrix, the flowing field and the resulting electric field when the bone tissue is subjected to outside force

    =由於骨內應力能夠產生電位並促進骨的發生和重建，為明確其作用機理，論文在連續介質力學框架內的混合物理論的基礎上，根據骨組織的生理結構特點，應用兩相多孔介質模型來描述骨組織在受外界作用下的變形場、應力場、流動場以及由此產生的電場。
  10. Aiming at the defects of the imc - 70 model stubble - plastic film residue collector that the draft is rather great and the plastic residue or stubble are sometimes left out in the operation process, formulas for the principal parameters of the knives have been driven out based on the analysis of the distribution manner in the field of the stubble and plastic film residue, the variation range and the variation tendency of the principal parameters for the reduction of the draft have been found on a trial basis in the corn field through theoretical analysis and experimental study and a mathematical model for the draft applied on the knives has been established in accordance with the movement and distortion of the soil under the action of the knives

    本文針對1mc ? 70型地膜回收起茬機起膜、起茬鏟刀在作業中阻力大，殘膜、根茬有漏起的現象，通過對作物收獲后殘膜、根茬在田間分佈情況的分析，推導出鏟刀滿足生產要求主要參數的求取方法和公式，並經理論分析和試驗研究，確定了鏟刀對玉米茬地進行起膜、起茬時主要參數的取值范圍和減小牽引阻力各參數的取值規律。以鏟刀作用下土壤的運動變形為基礎，建立了鏟刀牽引阻力模型。
  11. Surface collapse of coal field is one kind of geological disaster with great hazard, which may result from distortion and breakout of overlying strata that lose their support after underground coal beds are excavated in a large area

    摘要採煤區地面塌陷是由於地下煤層大面積采空引起上覆巖層失去支撐而變形崩落最後導致地面沉降一種危害很大的地質災害。
  12. The optimization algorithms in conventional calibration field have the shortcoming that the computing quantity is huge. in order to improve it, a single adaptive neuron algorithm was developed in conventional camera calibration in this dissertation, and a calibration algorithm considering radial and tangent distortion based on single adaptive neuron is proposed

    傳統的標定演算法中各種優化演算法存在著計算量大的不足，本文將單個自適應神經元應用到攝像機傳統標定中，提出了一種考慮徑向畸變和切向畸變的攝像機標定演算法，它與其他優化演算法相比具有簡單實用、計算量小的優點。
  13. In the macroscopical field : ( 1 ) the relationship between the moisture and the speed of average collapse was attained, that is, the speed of average collapse will increase with increasing of the moisture at first, but it will decrease when the value get to certain max with increasing of the moisture ; ( 2 ) the model of relationship between the pressure and the speed of average collapse was established on the basis of experiment. the conclusion of that the speed of average collapse bouncing increase with increasing of the pressure was attained and the relationship between stress and distortion was established ; ( 3 ) the method of synthetical evaluation for collapsibility loess under the effect of time, pressure and moisture was offered

    在宏觀角度上： （ 1 ）以遼寧阜新地區黃土試樣的固結試驗數據為分析對象，得到了黃土濕陷速率與含水量的關系曲線呈單峰狀態的結論，即黃土濕陷速率在土體浸水初期會隨著含水量的增加而增大，但當含水量超過某一數值趨于飽和含水量時，黃土濕陷速率卻隨著含水量的增加而減小； （ 2 ）立了黃土濕陷速率與壓力之間關系的數學模型，得出了黃土濕陷速率隨壓力的增大而呈階越增長的結論以及阜新地區濕陷性黃土的本構關系； （ 3 ）提供了在時間、含水量及壓力等因素共同作用下，對黃土濕陷性進行綜合評價的方法。
  14. On the basis of a large number of field geology investigation, the theory on engineering stratification was applied to analyze and study systemically rock mass structural surface of dam abutment, and further throw light on overall character of rock mass structure. by setting up definite structural level model and statistical model, and analyzing further numerical simulation of finite element, the action of rock mass stress and shape distortion has been recognized and apprehended in depth

    本論文以現場地質調查為基礎，應用系統工程層次性理論，對壩肩巖體結構面進行了系統的分析研究，闡明了壩肩巖體結構的總體特徵，建立了壩肩巖體結構的確定性層次模型和統計模型，通過進一步的有限元數值模擬分析，深化對巖體應力形變作用的認識與理解。
  15. The cubic law which describe the law of fluid flow in fracture is based on parallel plate joint model, in this paper the cubic law is modified and non - parallel wedge - shaped joint fluid flow equation is formed, coupling relation between seepage and stress is given based on permeability and joint distortion as the linkage between two field, while the coupling mechanism is simple and explicit

    描述裂隙水流運動規律的立方定律是建立在平行板裂隙模型基礎上得出的，本文對立方定律進行了修正，推導了非平行楔形裂隙水流方程，根據滲透性和裂隙面變形關系給出了單裂隙滲流與應力耦合公式，耦合的機理十分簡單、明確。
  16. To resolve the problem of distortion of large - complex aerospace monolithic components during milling process, a finite element model ( fem ) of milling process simulation in distortion field and temper - attire field was established

    摘要為了控制尺寸大、形狀復雜的航空框類整體在銑削加工時產生的變形，建立了銑削加工時的變形場和溫度場的有限元模型。
  17. A 200kv laser triggered multi - stage multi - channel switch, a 200kv / 100ka multi - channel ring rail electrode field distortion switch and a 5mv laser triggered multi - stage multi - channel switch were designed and tested. the main results and conclusions of this dissertation are as follows : ( 1 ) the switching property of sf _ ( 6 ) - n _ ( 2 ), sf _ ( 6 ) - ar mixtures and the design techniques of multi - channel field distortion switch were studied. a 0 - demension " 2 - 2 " model was developed to study the interaction of the uv laser with sfe gas and sf _ ( 6 ) - n _ ( 2 ) mixtures

    本論文研究了激光觸發多級多通道開關的運行機理、 sf _ 6 n _ 2 、 sf _ 6 ar混合氣的開關特性和多通道場畸變開關設計技術，建立了零維激光觸發火花隙及激光觸發多級多通道開關數值模擬模型，研製了200kv原理型激光觸發多級多通道開關、 200kv 100ka環軌式場畸變開關和5mv激光觸發多級多通道開關，獲得的主要成果和結論如下： （ 1 ） sf _ 6 n _ 2 、 sf _ 6 ar混合氣的開關特性及多通道場畸變開關設計技術研究方面。
  18. In the last part of the thesis a study of engineering effect about the complicated rock mass was done base on a numerical simulation and the engineering geological condition in the dam site. numerical simulation result reflect several disciplinarian of stress - distortion action in the right bank slope. firstly, today ' s right bank stress field mainly is grave stress field

    在上述研究工作的基礎上，通過對右岸巖體應力?形變作用的有限元數值模擬分析，表明：右岸壩基巖體的現今應力場主要是在自重應力場的基礎上，河谷下切應力、分異的應力場。
  19. Since the camera lens used in computer vision sustain a lot of nonlinear distortion, recent research efforts has been concentrated on the distortion correcting technique. the optimization algorithms in conventional calibration field have shortcomings that the computing quantity is colossal. in order to improve it, tsai two steps ’ algorithm was developed in conventional camera calibration in this dissertation, and a calibration algorithm considering radial distortion

    由於攝像機鏡頭存在著畸變，對于要求精度定位的應用，需要進行畸變校正，而傳統的標定演算法中存在著計算量大的不足，本文採用tsai氏兩步標定法是考慮一階徑向畸變的攝像機標定演算法，與其它優化演算法相比具有簡單實用、計算量小的特點，並通過實驗驗證了該演算法的可靠性和有效性。
  20. ( 3 ) the design techniques of multi - channel field distortion switch were studied and a 200kv / 100ka ring rail electrode switch was designed and tested

    探索了改進開關性能的技術途徑，研究分析了電場分佈和電極處理工藝及老練方法對開關性能的影響。
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