辐射
- 与 辐射 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Based on genetic algorithm and incomplete beta function, we introduce a self-adaptive method for image contrast enhancement and apply this method to radiograph image enhancement.
基于遗传算法和非完全Beta函数,介绍了一种自适应的图像对比度增强方法,并将其应用到辐射图像的增强处理中。
-
Its' radiant intension higher tenfold to hundredfold compare with the betatron, spending shorter time on radiogram. higher resolution rate. Hope stream to strong, spot to small commonly.
它产生的韧致辐射强度比电子感应加速器高几十到几百倍,射线照相所需时间更短、分辨率更高。
-
Simulations based on finite integration method are carried out in a wide frequency range for a balanced feeding finite wide-angle biconical antenna and many results including input impedance and far fields are obtained.
利用基于有限积分法的电磁场仿真技术对平衡馈电的有限长宽角双锥天线作了计算,得到了天线在很宽频带内输入阻抗、远区辐射场与频率的关系曲线。
-
In this paper the dimension parameters which influence the electrical properties of the biconical antenna is discussed by means of simulation and experimental test. And a biconical omni-directional antenna array operating within 0.8~3GHz is designed. Its design parameters and the results of the simulation including curves of the VSWR, radiation pattern and the gain within the band are also given.
本文通过仿真与实验测试对影响双锥天线电性能的各种尺寸参数的作以探讨,并且设计了一种可工作于0.8~3GHz的宽带双圆锥全向天线阵,给出了该天线的具体结构尺寸以及仿真后的VSWR数据曲线,E面,H面辐射方向图和频段内各频点的增益值,以及此天线在0.8~3GHz范围内的VSWR测试数据曲线,并进一步提出了一些设计此类天线的关键点。
-
The antenna has a composite structure of a cage and an asymmetric biconical structure. The impedance bandwidth and radiation pattern bandwidth are enhanced, and the tilting and ripping of radiation patterns are eliminated.
将笼型与不对称双锥结构相结合,展宽了天线的阻抗和方向图带宽,抑制了天线辐射方向图在宽频带内上翘或裂瓣。
-
Based on deep understanding on the relation between the properties of biconical fibers and the fusion temperature, a problem of fusion temperature monitoring is solved by means of a ceramic microheater and a fiber pyrometer. Effects of the fusion temperature on optical properties of biconical fibers are studied quantitatively. Biconical fiber devices with various filtering spectra are fabricated. Experimental results agree well with theoretical predictions.
根据对双锥光纤成形及光学特性与加热温度的深入理解,采用陶瓷管辐射加热和光纤高温传感新技术,解决了长期以来熔锥温度不易监测的关键技术难点,定量研究了熔锥温度对双锥光纤光学特性的影响,研制出多种具有不同滤波谱形状的双锥光纤器件,实验与理论模型预测的结果一致。
-
In Chapter 4,further theoretical study on UWB biconical antenna and V-coni-cal antenna is presented.The theory of biconical and V-conical antenna with ellipticcross section is developed in the sphro-cone coordinate system under the assump-tion of TEM mode.
第四章研究UWB/SP的辐射天线,对双锥天线及V—锥天线在理论上作更进一步的研究,发展了无穷长双椭圆锥天线的理论提出了一种新天线结构形式-V椭圆锥天线。
-
A binary compound of tellurium.
钚发射危险的辐射物。
-
The brand marketing strategy of Tianchun has been very successful in Guangdong province. In the past 6 years, BINNEY wines have become the first choice of many governmental bodies, companies, and individuals who enjoy drinking wine in parties. It is because of this great achievements that Tianchun plans to start a new marketing project that covers over 30 provinces and cities in China.
天纯酒业所倡导的以品牌营销为主的经营方针在以广东为基地的市场上获益良多,功到自然成,天纯以六年时间锻造的宾尼品牌得以渐进人心,成为企业公关、政府采购、个人PARTY中的首选品牌,天纯也凭此聚积了辐射全国的客户资源,并在2009年启动全国30个省市经销整合联盟计划。
-
Result]Like most of C3 plants, the diurnal changes curve of NPR of Lonicera japonica Thunb. showed double peaks, but there were time difference in reaching the peak value between the study and previous ones. The responding mathematical model of NPR to photosynthetic valid radiation could be described by three mathematic functions , such as logarithm, linearity and binomial,but binomial function was more precise than the others. Light saturation point of Lonicera japonica Thunb. was figured out by binomial equation deduced in the study, and light saturation point was 1 086.3 μmol/(m2·s).
结果]与多数其他C3植物一样,金银花净光合速率日变化曲线呈双峰型,但在具体达到峰值的时间上与前人的结果有差异;金银花净光合速率对光合有效辐射的响应可用对数、线性、二项式3种数学函数来描述,但以二项式描述更确切;根据前面得到的二项式方程,计算出了金银花的光饱和点为1 086.3 μmol/(m2·s)。
- 推荐网络例句
-
The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0,0.4,0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗,测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
-
By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础,研究二值图像的形态分析算法,探讨最小结构元素的两种基本形态:膨胀和腐蚀;分析了数学形态学复杂算法的基本原理,把数学形态学的部分并行处理理念引入到家实际应用中。
-
Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境,房地产,二级和三级市场的发展更加迅速改善。