nmr imaging 中文意思是什麼
-
“ contrast agents for magnetic resonance imaging : basic principle and practice ”, nmr lab lecture series, june 22, 2006
核磁共振成像造影劑：基本原理和應用」 ，實驗室內系列講座。 -
Base on certain main magnets of nmr this thesis designs the most excellent structure of the pole shape and obtains a relatively uniform magnetic field in a large imaging volume. the calculating model of pole shape made of pure iron can be simplified with the infinite permeability and calculated with the scalar potential. the rule between pole shape and the homogeneity or the size of uniform region of magnetic field is discovered and factors of influencing the homogeneity of the magnetic field are held so that the main magnet with the optimized size of pole shape can produce a relatively uniform magnetic field in a large imaging volume
本文針對一類典型結構的主磁體，通過磁場分析與大量的計算，找到了極靴形狀的改變影響樣品區磁場均勻度以及均勻區域范圍的規律，掌握了極靴形狀的變化趨勢及其形狀影響樣品區磁場均勻度的各種因素，進行了極靴的形狀優化設計並編制了相應的計算機軟體，給出了極靴形狀的具體尺寸，使得主磁體能在更大空間內產生相對均勻的磁場。 -
At the beginning the thesis indicates the crux of nmr imaging is the homogeneity of the static magnetic field through introducing the basic principle of nmr imaging and presents the requirement of the satisfying imaging
首先，本文介紹了核磁共振成像的基本原理，指出樣品區靜磁場的均勻度是核磁共振成像的關鍵所在，並給出了滿足成像要求的條件。 -
Nuclear magnetic resonance ( nmr ) and magnetic resonance imaging ( mri ) technologies are widely used for physical, chemical, material and biomedical analysis and medical diagnosis
摘要核磁共振波譜和核磁共振成像技術（ mri ）已經成為一種廣泛應用於物理、化學、材料、生物醫學等領域的重要研究工具和醫療診斷手段，但是儀器復雜、價格昂貴。 -
The experiments of fluidsaturated rock show that the nmr imaging technology has many advantages in analyzing the pore structure, fluid distribution, fracture identification and flooding process
通過巖心核磁共振成像基礎實驗研究，認為核磁成像巖心分析技術在孔隙分佈、流體分佈、裂縫識別、驅替過程研究等方面具有突出的優勢。 -
The device of nmr imaging is a sort of equipment of advanced medical diagnosis, which can acquire the transected scanning imaging of interior tissue of human body
核磁共振成像裝置是一種先進的醫療診斷設備，可用來獲得人體內部組織的斷層掃描圖像。 -
Nmr - imaging, zeugmatography
核磁共振成象 -
Introduced are the principle, methods of low field nuclear magnetic resonance ( nmr ) imaging technology and it ' s application in rock petrophysics experiment
摘要主要介紹了低場核磁共振成像技術的原理、方法及在巖石物理實驗方面的應用。 -
Nmr imaging equipment
核磁共振成像裝置 -
Using permanent magnet as the main magnet, which is the core of nmr imaging device, is the current trend
主磁體是該裝置的核心部分，採用永磁型主磁體是當前的重要發展方向。 -
Imagine if the mri scanner had been known by the name that is often used by researchers, the nmr imaging device : the nuclear magnetic resonance machine
可以想象，如果mri掃描儀為人所共知的僅僅是其經常被研究人員所使用的名字nmr圖像裝置，也就是核磁共振設備。 -
At last, the experiment for the mini - device of nmr imaging, which is finished together with the relative company, proves the efficiency of the optimized schemes of pole shape presented in this thesis
最後，本文以一種小型核磁共振成像裝置作為實例，並與有關單位合作，用實驗對優化方案進行了驗證，證明了本文提出方法的有效性。 -
The permanent main magnet is mainly the developing direction through analyzing the advantages and disadvantages between three sort of main magnets : superconductor, routine and permanence. aiming at the different types of the permanent main magnet with edge effects, which ca n ' t reach the demand of nmr imaging, numerical method of magnetic field computation and the theory of shape optimization is applied
因此，本文應用磁場數值分析和形狀優化的理論和方法，探索了大空間內均勻磁場的技術，目標是在核磁共振成像主磁體己設計好的基礎上，對極靴的形狀進行優化設計，盡量擴大樣品區磁場均勻的范圍。
分享友人