spin projection

This paper describes a scheme of haar wavelet encoding MR imaging based on spin echo sequence, the scheme can acquire a single-section 256 × 256 T_2-weighted projection image in 33 s by carefully arranging the haar wavelet encoding selective excitations.

本文介绍了一种基于自旋回波序列的哈尔小波编码磁共振成像的实施方案，该方案通过周密安排哈尔小波激发顺序，可在33秒内获得一幅256×256个像素的T2加权投影像。

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The spin state of many electrons is deduced by using the projection operator and the raising and lowering operators.

第二，按照群论方法对多电子体系的对称化投影算符进行了讨论，并用投影算符和升降算符推求出多电子的自旋态。

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Adopts a simplified projection reconstruction technique, and obtains a 2D spin density imaging of the cross section of a mouse's tail. Discusses imaging errors of analogue sample and proposes some methods for limitation and correction of these errors.

采用简化的投影重建成象方法，获得了白鼠尾巴截面的二维自旋密度成象，分析了模拟样品成象的误差并提出了校正和减小某些误差的方法。

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Chapter three studies the problem of interferometric phase images filtering and estimation, and details spin filtering with curve windows along the fringe tangent orientation and an estimation method based on the technique of joint space-image subspace projection.

第三章研究了干涉相位的滤波和估计问题，重点研究了曲线窗口旋滤波算法和子空间正交投影法。

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