Besides, we found that a1 cm thick Lucite screen at10 cm from the patient was enough to build up the surface dose. 至于表面剂量则可用1公分压克力屏风置于病人前方10公分以达到足够的治疗剂量。
Conclusion The dose build-up regions have changed and surface dose increases considerably after the application of masks. 结论使用面罩后射线的剂量建成区出现变化,表面剂量明显提高。
Experimental study of correlation between entrance surface dose ( ESD) of phantom and detection of pulmonary lesion in CR CR入射体表剂量与肺部病变检出相关性的实验研究
Objective: To find good activity surface activity dose which eliminating chromium ion in the waste water by using foam flotation method to determine the kinds of the surface activity. 前言:目的:为找到泡沫浮选法去除废水中铬离子活性较好的表面活性剂,对表面活性剂种类进行探索。
After successful slow pathway ablation, body surface and intracardiac Electrocardiogram at the dose of ATP required to achieve DAVNP was consecutively recorded. RFCA慢径阻断成功后重复原ATP剂量,连续记录体表心电图和心内电图。
Determination of surface dose rate for Cloisonne using thermoluminescent dosimeters 用热释光剂量计测量景泰兰产品的表面剂量率
Conclusions DHEA might suppress immune response in central nervous system by decreased CD86 molecule expression on the surface of astrocytes. High dose DHEA decreased astrocyte proliferation. 结论DHEA可能通过降低星形胶质细胞表面CD86共刺激分子的表达抑制中枢神经系统内的免疫反应,高浓度的DHEA可降低星形胶质细胞的增生。
Surface doses were obtained from measured X-ray tube output data. The correlative changes were observed among X-ray tube voltage, surface dose, air kerma, and the detection threshold concentration of iodine. 观察X线管电压、表面剂量、比释动能以及碘探测阈浓度之间的变化关系。
Entrance surface dose measured from X ray examined population was ranged from 0 21 to 33 3 mGy. X射线诊断受检者入射体表剂量021~3330mGy。
A new parameterization method for retrieving surface UVB irradiance and erythemal UVB radiative dose rate is presented. 提出了一个从卫星观测推算地面UVB辐射通量密度和红斑生物紫外辐射剂量的新的参数化方法。
The dependence of surface damage modes and the critical dose for onset of blistering and flaking on material sort and ion energy was discussed. 测量了泡的直径和剥落泡皮的厚度,并讨论了表面损伤类型和初现的临界注量与材料种类和离子能量的关系。
The experimental study of the optimized kVp and it's relationships with the surface dose of phantom and the phantom thickness 最佳kVp与体模表面剂量和体模厚度关系的实验研究
In this paper, the measuring method and results of surface dose rate of cloisonne using CaSO_4; Dy-Teflon foil dosimeter described. 本文介绍了用CaSO4∶Dy-Teflon薄膜剂量计测景泰兰产品表面剂量率的方法和结果。
Surface flashover voltage of glass in vacuum is enhanced by implantingHe(?) into the surface of the glass. When implantation dose is 4 × 10~ ( 17) ions/ cm~ 2, the flashover voltage is raised by 68%. 本文报导把He~+注入玻璃表面增强了玻璃在真空中的面闪络电压,当注入剂量是4×10~(17)离子/厘米~2时,面闪络电压提高了68%。
Conclusions To reduce or control chest fluoroscopic proportion will decrease surface dose from diagnostic x-ray of patients. 结论减少或控制透视比例,降低受检者群体的体表剂量,以减少医疗照射对人体造成的危害。
The surface UVB irradiance and erythemal UVB dose rate can be expressed by the effective transmission of the ozone layer and united reflectivity due to the scattering layer and the surface. 地面紫外辐射通量密度和生物紫外辐射剂量可以由臭氧层的等效透过率、散射层和地面的联合反射率计算。
Clinic dosimetry has been investigated for the output dose factor, the surface dose, the 90% area, the x-Ray contamination, radiation leakage from the equipment, and beam profiles in each cone. TLD was also monitored for patients. 临床剂量学研究了输出因子,表面剂量,90%剂量区域、X线污染、剂量剖面分布及热释光剂量计(TLD)患者受照剂量监测等。
The design principle, structure, preformance and experimental results of two types of extrapolation ionization chamber are described in this paper. Both of them are used for measuring the surface dose rate of beta medical applicators. 本文描述了两种用于测量医用β敷贴器表面剂量率的外推电离室的设计原理、结构、性能和实验结果。
The charge store stability of PTFE and PP were studied by measuring isothermal surface potential decay after different dose of ultraviolet radiation. 用补偿法测量不同剂量的紫外照射后驻极体的表面电势。
Objective to understand entrance surface dose from diagnostic x-ray of examinee in Anhui province. 目的了解安徽省X射线诊断受检者体表剂量水平。
The structure of Pd-Cu-Si alloy with Ni-P amorphous plating and its slide friction property were studied. It was indicated that the effect of load on the wear capacity was not obvious and the hardness of the wearing surface dose not increase during the wearing test. 用X-射线衍射研究Pd-Cu-Si合金玻璃丝和Ni-P非晶态镀膜摩擦付的结构,及其滑动磨损特性,表明负荷对磨损影响很大,磨损试验中,硬度没有增加。
It has been found that the thickness of transition layer changes with time according to a parabola rule while the change of surface layer thickness dose not. 通过厚度测定发现,过渡层厚度遵循抛物线生长规律,而表面层的厚度变化则明显不同。
The smooth degree of fracture surface increased with the dose. 其断口表面的光滑程度随吸收剂量的增加而增大;只观察到结构上微小的变化;
The results showed that long pulse could increase impact energy on inner surface but had little effect on retained dose. 结果表明,长注入脉宽可以提高内表面注入能量,但对注入剂量影响不大;
AIM: To compare the effects of different does of lanthanum-contained rinse and gel on carious-resistance of root surface, and determine the lowest effective dose of these two preparations. 目的:比较含不同浓度镧(La)的漱口水和凝胶对根面的防龋作用,并确定这两种剂型的最低有效浓度。
The synergistic effect was apparently affected by applied voltage, electrode surface area, dose of sludge and organic carbon source. 研究还发现,p-ClNB还原转化受外加电压、电极面积、污泥浓度、外加碳源等影响。
Our results indicate that the creation of surface damage depends strongly on the H ion dose. 实验结果表明,样品的表面损伤依赖于附加注入的氢离子剂量。
According to the correspondence between the dark mode characteristic and the refractive index, it can be seen that the surface refractive index decreases with the dose increasing and the change of refractive index value is minimal for nx, moderate in ny, and maximal on nz. 根据暗模特性与折射率之间的对应关系可知,随着注入剂量的增加,波导层表面折射率逐渐减小。在相同注入剂量下,nx的值最小,ny的次之,nz的最大。
EDS and the XPS analysis results indicated that the alloy surface element content increased with the implantation dose grows after ion implantation. The TiO2 layer has been formed in the alloy surface implanted Ti. EDS和XPS分析结果表明,离子注入后,合金表面的元素含量随着注入剂量的增加而增大,注入的Ti离子在合金表面形成了TiO2层。