查询词典 alpha ray

The appearance of soft x ray multilayer reflectence mirrors is an important event in x ray optics.

软x射线多层膜反射镜的出现，是x光学的重大事件。

Steams, which is applible to soft x-ray region, is applied to the scattering study of rough interface of soft x ray multilayer mirrors.

Steams的散射理论应用于软x射线多层膜反射镜的粗糙界面的散射研究，并基于该理论提出了一种多层膜反射镜的修改设计方法。

The aim of the paper is to design and fabricate five mulitilayer mirrors in shorter wavelength of soft x ray region and makes up of soft x ray spectrometer which is applied to ICF experiment.

在ICF实验中，激光等离子体产生的x光主要分布在亚仟电子伏特区（0.1-1.5keV），它的总能量、能谱特征、发射时间过程和空间分布都是理论和实验极为关心的基本数据。

The systematic deviation can be obtained by fitting thediffraction data of soft X ray and X ray with shorter wavelength,e.g.,0.154nm.

对软X射线和波长较短的X射线(例如λ＝0.154nm)衍射数据的拟合可以得到样品中每一种层的系统偏差。

Because the phase contrast resolution of X ray in soft tissues is about one thousand times higher than that of the absorption X ray method, so the phase contrast imaging is becoming the hot spot of the medical imaging.

据报道，软组织的X射线相位衬度的分辨率约为常规X射线CT吸收衬度分辨率的1000倍。

Because soft x ray multilayer mirrors have high reflectivity and strip filter function, their applying territories are expanded contimuously. Various fields in x ray optics grow strong demands for them.

由于软x射线多层膜反射镜具有高反射率和带通滤波的特点，x光学的各个领域对之产生了强烈的需求。

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现主要生产：1092、1575、1760、1880、2400单缸单网到多缸多网、短长网、长网纸机、圆网纸机改短长网纸机、复卷机、压光机、半湿压光机、水平式施胶机、斜式施胶机、振筐筛、两相流浆泵、ZBJ细浆泵、Ф500-1000mm螺旋推进器、方浆池搅拌器、5m3打浆机、12寸循环泵、立式高浓水力碎浆机、卧式水力碎浆机、1575、1092标准及加宽型切纸机、薄型浆料阀5t和8t切草机及除尘器606除渣器等多种产品，生产造纸设备用各种齿轮、链轮、长短轴及各种导辊、光辊并维修烘缸，制做各种烘钢大齿轮。

A series of spectra of X-ray generated from the cathode ray tube passing through a nickel steel absorber and aluminum samples of different thicknesses were simulated.

计算了X射线管发出的连续能谱X射线经过吸收片过滤后的能谱分布，发现能谱呈峰形。

In various embodiments, improved mechanisms for controlling texture sampling are provided that enable 3-D accelerator hardware to greatly increase the level of realism in rendering, including improved mechanisms for (1) motion blur;(2) generating anisotropic surface reflections (3) generating surface self-shadowing (4) ray-cast volumetric sampling (4) self-shadowed volumetric rendering and (5) self-shadowed volumetric ray-casting.

在各个实施例中，提供了用于控制纹理采样的改进的机制，它们能使3-D加速器硬件大大地提高呈现时的逼真度，包括针对下列各项的改进的机制：(1)运动模糊；(2)生成各向异性表面反射；(3)生成表面自投阴影；(4)光线投射容量采样；(4)自投阴影容量呈现和(5)自投阴影容量光线投射。

The microstructure of the coating was characterized using trans mission electron microscopy, X-ray diffraction and scanning electron microscopy equipped with energy dispersive X-ray analysis. The formation mechanism of amorphous/nanocrystalline was discussed. The wear behavior of the coating and the substrate was evaluated with wet sand rubber wheel abrasion tester at ambient temperature.

采用扫描电镜、能谱分析仪、透射电镜和X射线衍射仪等设备对涂层的组织结构进行了表征，着重分析了非晶纳米晶的形成机制，并利用湿砂橡胶轮式磨损试验机对涂层的磨损性能进行了研究。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。