在高速运行的飞行器或其他移动平台载体表面,常需要安装共形阵列天线。
利用与数据有关的保角映射,使核函数具有数据依赖性。
但是仔细观察后,可得出鸟嘴所衔并非鸟卵之形,而是蚕形。
把共形阵列等效为沿轴向方向若干个圆环阵单元组成的线阵,计算其方向图函数。
多叶准直器使射线束的截面形状与病灶的轮廓相吻合,可以实现适形放射治疗。
利用保角变换和电象法,分别得出均匀带电线与接地薄导体圆筒内的电势。
当采用更窄的叶片并且肿瘤在BEV方向照射野的形状更加规则时,就能达到更好的适形。
方法:对20例前列腺癌患者分别进行二维常规放疗和三维适形放疗治疗计划设计。
导出在极射赤面投影、卡托圆柱投影和兰勃脱正形圆锥投影等算法中确定位置坐标的精确公式。
结论宫颈癌选择适形放疗能够使直肠接受辐射剂量的体积缩小,剂量减少。
目的探讨行立体定向低分割适形放射治疗胰腺癌(PC)患者的护理要点。
将一种改进的遗传算法运用于圆柱共形微带天线阵列的方向图综合。
将天线阵元安装在飞行器表面形成共形阵列天线,共形阵列天线可以提高武器的性能。
综合应用适形放疗与化疗等手段有望在临床上进一步提高晚期胰腺癌的疗效。
交替投影法灵活性强,效率高,且其收敛也非常好,尤其是在大型阵列天线的方向图综合中。
如果设计适当,保形油箱甚至完全可以改善飞机的隐身和气动性能。
适形放射治疗的目的是精确定位肿瘤并减少对周围正常组织的破坏。
阀阀我们拥有流体的雾化喷涂、非雾化喷涂以及液体点胶等涂覆阀可供选用
描述一个适用于适形治疗和调强治疗的散射式质子束流配送系统。
该种晶层是由保形沉积工艺和由非保形沉积工艺形成的。
目的探讨用常用办公用品等来制作不规则适形挡铅的方法、步骤。
对一种柱面电磁带隙结构应用于圆柱共形偶极子振基站天线进行了研究。
1·Objective to discuss errors of conformal plumbic blocks made with manual cutter and automatic cutter.
目的:探讨手动切割机与自动切割机制作适形铅挡块的误差。
2·As an advanced conformal therapy, Intensity-modulated radiotherapy (IMRT) can increase the gain ratio of radiotherapy and improve the local control of the tumor.
调强放疗(IMRT)是一种先进的适形放射治疗方法,能提高放射治疗的治疗增益比,促进肿瘤的局部控制。
3·Objective To discuss the therapeutical effect of stereotactic conformal radiotherapy on primary liver cancer and its value in preoperative application.
目的探讨立体定向适形放疗对原发性肝癌的治疗效果及其术前应用的价值。
4·The goal of conformal radiotherapy is to precisely target the tumor and to reduce damage to the surrounding normal tissue.
适形放射治疗的目的是精确定位肿瘤并减少对周围正常组织的破坏。
5·Looking at that in the lab, it becomes a function of airfoil shape, and also of the flow control technologies you use to enhance the laminar flow with conformal trailing edge surfaces.
实验室的研究表明,它已经成了机翼的一项功能,也是通过适形机翼后缘表面来增强层流的流控制技术的功能。
1·As its applications, we obtain an equivalent condition for harmonic maps to be strongly conformal.
作为应用,我们得到了调和映照为强共形的一个等价条件。
2·This paper applies conformal geometric algebra to analyze the reverse kinematics of serial robot.
本文应用共形几何代数分析串联机器人的运动学反解。
3·Relationships between conformal mapping and coordinate transformations was confirmed.
确定了共形映射与坐标变换之间的关系;
4·An achromatic conformal optical system working within infrared waveband was designed.
设计了一个红外波段消色差共形光学系统。
5·In this paper, a kind of cylindrical EBG structures applied to base station cylindrical conformal dipole array antennas is studied.
对一种柱面电磁带隙结构应用于圆柱共形偶极子振基站天线进行了研究。
1·The method of conformal mapping is a tool to achieve this solution.
保角映射法就是一种寻求这个解的工具。
2·The use of elementary geometry method can give conformal demonstration of lineal function in infinite eigenvector.
用初等几何方法给出线性函数在无穷远点的保角性证明。
3·The axial shear modulus has been derived in closed form by using the conformal mapping approach integrated with the Laurent expansion.
利用解析函数的保角变换与罗朗级数展开,获得了轴向剪切模量的封闭公式。
4·The productivity formulas of branch horizontal wells which have or not have common joint are derived by applying conformal transformation and isopleth map of percolation resistance force.
运用保角变换和等值渗流阻力推得分支水平井(有公共点或没有公共点)产能公式。
5·An analytical formula for calculating conformal mapping function of the sprocket tooth profile is given.
给出了链轮齿廓保角映射函数的解析表达式。
1·Factors that affect the surface resistance of the board include the board material, the presence of coatings such as solder masking or conformal coatings, and board cleanliness.
影响印制板表面电阻的因素包括印制板材料、有无涂层(例如防焊漆或保形涂层),以及电路板的清洁。
2·The second chapter, the conformal curves having weight factor, is divided four parts.
第二章为带权因子的保形曲线部分,分四节。
3·Linear transformation is a kind of basic and important Conformal mapping.
线性变换是一种基本又十分重要的保形变换。
1·On the basis of the principal qualification for all conformal projections, the application for the above three projections in Antarctica are specified.
本文在介绍了所有等角投影应满足的一般条件的基础上,分别详述了上述三种投影在南极地区的具体应用。
2·There are three popular map projections in Antarctica-Polar Stereographic projection, Transverse Mecator projection and Lambert conformal Conic projection. They are all conformal.
南极地区常用的地图投影方式有:极方位立体投影、横轴墨卡托投影、兰伯特正形圆锥投影等三种等角投影。
3·The theory and method mentioned in this paper are the fundament to develop Conformal Space projection.
本文所述的理论和方法可做为建立等角空间投影的基础。
4·There are three popular map projections in Antarctica-Polar Stereographic projection, Transverse Mecator projection and Lambert Conformal Conic projection.
南极地区常用的地图投影方式有:极方位立体投影、横轴墨卡托投影、兰伯特正形圆锥投影等三种等角投影。
5·The theory and method mentioned in this paper are the fundament to develop Conformal Space pro...
本文所述的理论和方法可做为建立等角空间投影的基础。
1·Oh ~ this person if not conformal, even the headache is partial.
唉~这人要是一没正形,连头痛都是偏的。