127 resultados para Barwick, Garfield


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This volume explores key aspects of the development of the Australian Department of External Affairs in the three decades from 1941 to 1969 as it evolved from a small amateur department to a highly professional global operation.

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利用Garfield气体探测器模拟程序模拟了不同条件下Micromegas探测器的增益和位置分辨特性.通过对模拟结果的分析,得出提高探测器位置分辨和增益的有效途径.该工作不仅可以优化气体探测器结构设计,缩短实验周期,而且还能极大程度的节约经费.

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In this paper, a batch file which describes the detailed structure and the corresponding physical process of Micro-Mesh Gaseous Structure (Micromegas) detector, the macro commands and the control structures based on the Garfield program has been developed. And using the Garfield program controlled by this batch file, the detector's gain and spatial resolution have been investigated under different conditions. These results obtained by the simulation program not only exhibit the influences of the mesh and drift voltage, the mixture gas proportion, the distance between the mesh cathode and the printed circuit board readout anode, and the Lines Per Inch of the mesh cathode on the gain and spatial resolution of the detector, but also are very important to optimize the design, shorten the experimental period, and save cost during the detector development. Additionally, they also indicate that the Garfield program is a powerful tool for the Micromegas detector design and optimization.

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Printed pamphlet of sermons presented by ministers and pastors after the death of President James A. Garfield.

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El químico norteamericano Eugene Garfield es considerado por muchos investigadores como el "santón" de la documentación científica en el mundo. Bajo el prisma de Garfield y a través de publicaciones tan prestigiosas como "Current Contents" o "Science Citation Index", cualquier investigador puede conocer el índice de impacto que ha alcanzado su trabajo en la comunidad científica.

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"Exploration Division, Grand Junction Operations Office, Grand Junction, CO."

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Mode of access: Internet.

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Published in 1880 under title: The life of Gen. James A. Garfield.

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Mode of access: Internet.