超聲成像法 的英文怎麼說

中文拼音 [chāoshēngchéngxiàngfǎ]
超聲成像法 英文
ultrasonic imaging method
  • 超 : Ⅰ動詞1 （越過; 高出） exceed; surpass; overtake 2 （在某個范圍以外; 不受限制） transcend; go beyo...
  • 成 : Ⅰ動詞1 （完成; 成功） accomplish; succeed 2 （成為; 變為） become; turn into 3 （成全） help comp...
  • 像 : Ⅰ名詞1 （比照人物製成的形象） likeness （of sb ）; portrait; picture 2 [物理學] image Ⅱ動詞1 （在...
  • 法 : Ⅰ名詞1 （由國家制定或認可的行為規則的總稱） law 2 （方法; 方式） way; method; mode; means 3 （標...
  1. Considering the nonuniqueness and instability of ultrasonic computerized tomography for structural concrete as well as the ultrasonic transmission characteristics in concrete, a natural weight matrix with dear physical meaning was introduced in the inverse algorithm

    摘要針對混凝土超聲波層析成像結果不唯一和穩定性差的問題，首先依據超聲波在混凝土中的傳播特點，在反演演算法中引入物理意義明確的自然權矩陣，對走時較小的射線和射線較密的成像單元加以重權。
  2. Different algorithms were compared in the numerical simulation and model experiment of concrete velocity inversion the results showed that, compared with the least - square solutions and the damped least - square solutions, the damped and natural weighted least - square solutions reflected the inner defections of the tested object more reliably and exactly due to the usage of correct priori information, which benefited the suppression of noises and made the iterations of inverse stable and convergent

    結果表明，相對于最小二乘法和阻尼最小二乘法，基於自然權的加權阻尼最小二乘演算法，由於利用了正確的先驗信息，不但使反演過程收斂，而且具有數值穩定、抗噪能力強的優點，其成像結果能真實有效地反映對象內部缺陷，因此更適用於混凝土的超聲波速度反演。
  3. In this paper, we study this aspects of ultrasonics, b - scan imaging, image collecting, digital image processing, and establish the whole frame of image processing. we first use matlab to simulate for its feasibility, then write programme and debug it

    本文對超聲波原理、 b超成像原理、圖像採集技術、數字圖像處理技術、三維可視化技術等進行了較為全面的研究，確定了圖像處理的總體方案，首先用matlab對要採用方法進行模擬以驗證可行性，然後進行軟體編制和調試。
  4. Three dimensions ultrasonic digital imaging testing based on the correlation analysis of time series

    基於時間序列相關處理的三維超聲成像檢測方法
  5. On the other hand, some noncoherent measurement methods can be applied to image the tissue at several centimeters depth, while the image resolution is not satisfied. therefore, focused ultrasound - modulated optical tomography has been developed and shows a promising prospect for imaging tissue in depth with better resolution

    聚焦超聲調制的光學層析方法被認為是很有應用前景的一個光層析成像領域，即用聚焦超聲標記散射光子，並從這些光子中提取該處介質的信息。
  6. E - learning provides a friendly contact surface, a image direct - viewing learning environment, and provides the chart, the article, the sound, the picture cyclopentadiene multiple sense organ stimulating, it is advantageous to the scene establishment and the gain and maintenance of massive knowledge, it also can organizes each kind of study information and various disciplines knowledge deferring to the text and the ultra link, this is extremely advantageous to the learners ’ knowledge structure formating and the developing, also has the advantage extremely to construct the current knowledge significance, this is other learning environments is unable to achieve

    E - learning能夠提供界面友好，形象直觀的學習環境，提供圖、文、聲、像並茂的多重感官綜合刺激，有利於情景創設和大量知識的獲取和保持，還能夠按照文本、超鏈接的方式組織各種學習信息和各學科知識，這非常有利於學習者知識結構的形成和發展，對當前知識的意義建構非常有好處，這是其他學習環境無法做到的。
  7. In the process of building and using the mass concrete structures, because of the effect of out - side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance using nondestructive testing method to test the concrete ' s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseases this dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic fem to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, researched the principles of the first - arriving waves " phase when the cracks " depths are not same, obtained the relation between the inversion point and the cracks " depth, which has the direction sense in the application of projects, the second part of this dissertation is ct, which used the ultrasonic wave running through the tested - substance to get arriving - time of the ultrasonic wave, then inverse the image this dissertation drawed one ct program which can well present the different little cells " ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested - substance, ct has the better using foreground.

    在混凝土結構的施工及使用過程中，由於受其自身及外界各種因素的影響，常常會產生一些缺陷，對結構物的承載能力和耐久性造成嚴重影響，採用無損檢測技術進行質量檢測和健康診斷，這對混凝土結構開展安全、穩定性評估以及病害隱患治理研究具有重要意義。本論文主要針對大體積混凝土結構缺陷的檢測方法展開研究工作，重點討論了超聲波法檢測混凝土結構裂縫的基本原理和方法及其特點、適用范圍，運用動力有限元數值模擬其檢測過程，探討了有裂縫缺陷的混凝土結構在脈沖荷載作用下彈性波的傳播及其變化特徵，研究了不同裂縫深度下首波相位變化規律，得出了反轉臨界點與裂縫深度之間的關系，這對實際工程應用具有指導意義。聲波ct是一種新的無損檢測技術，它是利用聲波穿透被檢測體獲取聲波接收時間，來進行計算機反演成像的技術。
  8. Regularization method study in ultrasound inverse scattering imaging

    超聲逆散射成像問題中的正則化方法研究
  9. Frinking pj, bouakaz a, kirkhorn j, et al. ultrasound contrast imaging : current and new potential methods j. ultrasound med biol. 2000, 26 : 965975

    左松，劉政.新型超聲造影劑和成像方法在肝臟疾病中的應用j .醫學影像學雜志， 2002 ， 12 （ 1 ） ： 5758
  10. Through some examples, we think that the ultrasonic imaging method that can obtain some parameters of the crack attitude and the opening is an effective method in studying the crack of underground rock stratum

    經過多項工程實踐，我們認為超聲成像法對鉆孔孔壁掃描獲得裂隙產狀、開度等參數是研究地下巖層裂隙的有效方法。
  11. This paper introduces four kinds of mehtods that is used to investigate crack in underground rock stratum : borehole core method, ultrasonic imaging method, borehole television method, and borehole discharge well logging method

    摘要本文介紹了地下巖層裂隙的4種勘察研究方法：鉆孔巖芯法、超聲成像法、鉆孔電視法、鉆孔流量測井法。
  12. This paper introduces the application of computer to medical ultrasound images in which the processing of medical ultrasound images and picture archiving and communication system ( pacs ) are involved in

    摘要介紹了計算機在醫學超聲成像領域的應用，著重討論了醫學超聲圖像處理的方法和醫學圖像存檔及通信系統（ pacs ） 。
  13. The borehole ultrasonic imaging method can precisely reflect the smoothness of the borehole wall, and then judge the weathering degree of the rock and determine thickness of the weathering bed

    摘要鉆孔超聲成像方法能精確地反映井壁的光滑情況，進而判斷巖石的風化發育程度，確定風化層的厚度。
  14. This paper discusses several algorithms of re - fabricating images in synthetic aperture focusing ultrasound imaging. on such a basis, it puts forward the digit quadrature processing method of synthetic aperture to lower sampling rate, reduce operation and storage quantities and presents emulational results

    本文討論了合成孔徑聚焦超聲成像中重構圖像的幾種演算法，在此基礎上提出能夠降低采樣率、減少運算量和存儲量的數字正交處理的合成孔徑方法，並完成了模擬結果、模擬成像和dsp的實現。
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