查询词典 X-ray diffraction

In the 2×2 electro-optic switch with oblique incidence, the angular separation Δ〓 between the ordinary ray and extraordinary ray can be much greater if the output end interface are properly designed.

在斜入射2×2电光开关中改变出射面的光轴方向，可以使o光和e光的分离角Δ〓更大。

After 2 months, the samples of skin, scale, head and fm ray of the carps were selected for the subsequent analysis of determining their total carotenoid contents and the absorbance values, so the above solutions were evaporated to dryness, and then were measured by the thin layer chromatography. The results show that the spectrum of total pigment of koi carp had two absorption peaks in visible light (454 nm and 470 nm). The growth rate, weight gain and specific growth rate of red-white of koi carp fed with 1.0 g/kg β-carotene tended to be obviously higher than the control group (P.05), while the FCR of groups fed with 1.0~2.5 g/kg β-carotene was significantly lower than the control group (P.05). The colouring of red-white and red region in koi carp was the best at 1.5~2.0 g/kg β-carotene in diet, while the n-carotene added in the diets did not have any effects on total carotenoid concentration of skin/scale of white region. The n-carotene mainly deposited in skin and fin ray. And it mainly transformed into astaxanthin in koi carp.

结果表明，红白锦鲤总色素光谱在可见光区（454nm和470nm）有两个吸收峰，β-胡萝卜素在1.0g/kg组的增长率、增重率、特定增长率显著高于对照组(P.05)，1.0~2.5g/kg各组的饵料系数均显著低于对照组(P.05)；对于鲤的红白和红色区域，β-胡萝卜素的添加量为1.5~2.0g/kg时，对红白锦鲤体色的增色效果最好：β-胡萝卜素对红白锦鲤白色区域总类胡萝卜素的含量影响很小；β-胡萝卜素在红白锦鲤体内的主要沉积部位是皮肤和鳍条；β-胡萝卜素在红白锦鲤体内主要转化为虾青素。

Workers and patients suffer from harm by the large amounts of x-ray irradiation of the commissioned fluorescent screen X-ray machine, and the problem is solved in recent years by the image intensifier and the TV system whose prices are high (from 80 thousand to 90 thousand yuan).

工作者和患者遭受的损害是由大量X光照射的委托在荧屏上的X光机，并解决了问题，在最近几年，由图像增强器和电视系统，其价格偏高（从80000到9.0万元）。

Objective Surgeon can bring surgical tool into correct position according to the image computer screen utilizing computer image process technology and X - ray fluoroscope from C - arm. It can reduce the X - ray radiation exposure for surgeon, patient and stuff, and reduce operation time.

一，钱晋武，全仁夫，林学龙'· 105·目的利用计算机图像处理技术和手术前的C臂X射线影像资料，手术医生可以根据计算机屏幕所指示的手术路径正确实施手术，减少患者和医生的X射线辐射量，缩短手术时间。

Fod AR5395 the variation of peak flux Fx of soft X-ray exhibits a periodicity about 24.3 hours, the periodicity for the occurrence rate Nx of X-ray flares is about 12.2 houds, and the area Sx of sunspot groups varies with 24.4 hours period.

观测资料分析表明，AR5395活动区演化具有周期性的特征，软X射线峰值流量F变化周期为24.3小时，X射线耀斑出现率N_x，具有12.2小时的周期性，活动区黑子群面积S_x的变化呈现24.4小时的周期。

Simulative experiments were done and it was found in a certain range of mass thickness, the attenuation rule of X-ray was like that of the single energy gamma ray.

将它用作物质的透射模拟实验，发现在一定厚度范围内，它与某单能光子的强度减弱规律相同而等效。

It reformed the coventional grazing incidence method of reflecting x ray, and made it possible to reflect x ray in normal incidence way.

它从根本上改变了传统的掠入射反射x光的方法，使正入射反射x光成为可能，并极大的促进了x光学的发展。

The usual traveltime seismic tomography methods are based on ray theory;however,the energy of real seismic signals comes from one Fresnel volume connecting source point and receiving points instead of a hypothetic ray.

传统的走时地震层析方法都是建立在射线理论的基础上，而实际地震信号的能量是来自一个连接激发点和接收点的菲涅耳体，并非单纯地来自于一条假想的射线。

The usual travel time tomography method is based on geometrical ray theory,however,it assumes that the seismic wave has very high frequency,which often makes the tomographic inversion have ill posed problem because of the sparse ray distribution in the model space and finally affects the reliability and resolution of the tomographic results.

基于几何射线理论的旅行时层析方法假设地震波频率足够高，这样往往由于射线存模型空间的稀疏分布，使层析反演问题具有严重的不适定性，从而极大地影响层析成像结果的可靠性和分辨率。

The Solar X-Ray Imager is essentially a soft X-ray telescope that is used to monitor solar conditions and activity.

太阳X射线成像仪基本上是一种软X射线望远镜，用于监测太阳条件和活动。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。