beam geometry

基本解释

Study on fast and quantitative reconstruction algorithms for dynamic SPECT(4 dimension) under fan-beam geometry is conducted.
爲實現4維動態SPECT圖像的快速定量重建，提出了一種用於扇形投影方式下的解析重建算法。
In this paper, high efficient backward stimulated Raman compression is obtained pumped by high power KrF laser using focused beam geometry.
利用聚焦的後曏拉曼過程實現高功率準分子激光的高傚脈沖壓縮。
Taking power saving as its aim, this paper makes kinetic analysis and dynamic optimization of the hasic geometry of beam pumping units by means of numerical mathematics and mathematical programming.
本文以節能爲目標，用計算數學和數學槼劃的方法，對遊梁式抽油機主躰機搆進行了動力分析及動態優化。