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- Keywords IMRT;Dose calculation;Two-dimensional convolution;SCG algorithm;Beam parameters optimization;Inverse planning; 调强放射治疗;剂量计算;二维卷积;SCG算法;子野权重优化;逆向计划;
- beam parameters optimization 射野参数优化
- With the development of 3D CRT and IMRT, the optimization of beam parameters in external beam radiotherapy has gained wide interests. 摘要随着三维适形和调强放疗技术的发展，放射治疗计划射野参数的优化问题受到了广泛关注。
- The vibration of simple-supported beam under moving vehicles was controlled by two MTMD parameters optimization methods and the controlling effect was compared and discussed. 采用两种MTMD参数优化的方法对简支梁在移动车辆作用下的振动响应进行了控制,并对两种方法的控制效果进行了讨论和比较。
- Beam Parameters in the Diffracted Field of Dielectric Planar Waveguide TE0 Mode[J]. 引用该论文 郭福源;林斌;陈钰清;曹向群;上官成木生.
- Objective To study the construction of dose calculation model and the method of automatic beam parameters selection in IMRT. 目的研究调强放射治疗中剂量计算模型的建立与射野参数自动选择的实现方法。
- Pacing parameters optimization combined with rational medication is the key to successful CRT. 合理用药、动态随访和个体化参数优化是保证起搏系统稳定发挥CRT功能和患者充分受益的关键。
- The AFAA can adjust sensing period adaptively in real time using fuzzy logic with parameters optimization. 算法采用模糊逻辑及可调参数自优化方法，实现检测周期的实时自适应调整。
- Responsibly for material evaluation, equipment buyoff, to improve Process system and parameters optimization. 负责原料评估、设备验收，以改善工艺体系及参数设置。
- Abstract Electron gun is one of the key components of coupled-cavity traveling-wave tube (TWT).Its electron beam parameters have important influence on TWT performances. 摘要 电子枪是耦合腔行波管的核心部件之一，枪的电子束参数对行波管工作性能有重要影响。
- Smulation results show that the output field distribution is related with Gaussian beam parameters, aperture size, ABCD matrix elements and misaligned parameters. 模拟结果表明输出光束场分布与光束参量、光阑尺寸、ABCD矩阵元、光阑失调量和光学系统失调量有关。
- The case distribution uniformity was controlled by sectionally changing velocity technique and the parameters optimization. 结合分段变速扫描工艺及参数优化设计,可以实现纵向硬化层分布均匀性控制。
- Combining the theories, simulation with experiments, the pre-process input parameters optimization of DYNAFORM is studied. 采用理论分析、试验和数值模拟相结合的方法对DYNAFORM软件前处理输入参数的优化设计进行了研究。
- Studies the rail pressure controll strategy and control parameters optimization of high pressure common rail diesel engine. 摘要研究高压共轨柴油机共轨压力的控制策略及其控制参数优化。
- The screw die has great superiority in producing wide and thick polymer sheet, so it is significant to study the flow simulation and parameters optimization on the screw die. 但长期以来，国内橡塑生产行业一直没有很理想的宽幅厚板材生产设备，而螺杆分配机头在生产宽幅厚板材时有很大的优势，故对螺杆分配机头进行流场模拟与参数优化是一项非常有意义的工作。
- The result shows that the occurrence and the position of focal switches can be controlled by changing the beam parameter and astigmatic parameter. 结果表明,可以通过改变光束参数和像散参数来控制焦开关发生的位置和产生焦开关的次数。
- According to the shortage of traditional single-objective optimization, the thesis proposes to use amendatory objective function parameters optimization. 4.;针对传统的单目标优化的弊端;提出采用修正的目标函数参数优选法。
- She performed on the balance beam with much grace. 她在平衡木上表演得非常优美。
- Test Research on Parameter Optimization for Long and Medium Hole Drilling and Blasting in Sanxin Co. 三鑫公司中深孔凿岩爆破参数优化与试验研究。
- In addition, this example is intended to serve as an introduction to parameter optimization methods. 另外，本例子也试图对参数最优化方法作一个介绍。
