1.Spatial Variation Regularities of Cosmic Radiation and Evaluation of Exposure Doses to Aircrews
Spatial Variation Regularities of Cosmic Radiation and Evaluation of Exposure Doses to Aircrews
2.BODY SURFACE EXPOSURE DISTRIBUTION OF EXAMINEES RECEIVED UPPER G.I.T. X-RAY EXAMINATION
BODY SURFACE EXPOSURE DISTRIBUTION OF EXAMINEES RECEIVED UPPER G．I．T．X－RAY EXAMINATION
3.Article 17 Paragraph 17.1 In order to improve the quality of radiological diagnosis and treatment and to reduce the radiation exposure received by patients, whenever health care organizations use (1) radioactive material, (2) equipment capable of producing ionizing radiation, or (3)related facilities that the Competent Authority has announced as requiring a medical exposure quality assurance program, health care organizations shall not use any of them until (1)a medical exposure quality assurance plan is drawn up based on the Standards for Medical Exposure QualityAssurance and (2)the plan is approved by the Competent Authority.
第17条为提升辐射医疗之品质，减少病人可能接受之曝露，医疗机构使用经主管机关公告应实施医疗曝露品质保证之放射性物质、可发生游离辐射设备或相关设施，应依医疗曝露品质保证标准拟订医疗曝露品质保证计画，报请主管机关核准后始得为之。
4.Thirty male SD rats were divided into 5 groups,each group consisted of 6 rate, and was exposed to following condition: (1) 25℃ as a control group, (2) 37℃,2h heat exposure per each day for 7 days,(3)42℃ acute exposure for 30 min,(4)42℃ acute exposure for 60 min, and (5)42℃ acute exposure for 90 min.
雄性SD大鼠随机分为5组：25℃对照组，37℃每天2h共7天热适应组，42℃分别受热30min、60min，90min的3个热处理组。
5.In Manual operation or exposure compensation, the exposure indicator in the viewfinder display indicates the difference between the correct exposure value (EV) and the current exposure compensation setting.
手动操作或补偿曝光时,取景器显示的曝光指示灯表示正确曝光量(EV)和当前曝光补偿设置的差值。
6.Methods With the same acoustic power and exposure deep, long-time HIFU exposure and short-time fractional HIFU exposure were applied to ablate bovine liver tissue in vitro at total exposure time 1 s, 3 s and 5 s respectively.
方法固定声功率及辐照深度,总辐照时间分别为1、3、5s,采用长时单次辐照与短时多次辐照2种模式损伤离体牛肝,从靶点温升、超声灰度及病理改变等几方面进行比较。
7.When the rectangular Compton spectrum shape was used for the response matrix, the assessment of exposure rate was high, with a mean of 6 % or a maximum of 10%; whereas, the assessment of exposure rate of Berger, Zerber or the Compton spectrum shape tested by the authors were very similar. Change in reso lution function to exposure rate was less than ±2%.
结果表明:编制响应矩阵时,使用矩形康普顿谱形时,对照射量率的评价偏高,其最大值为10％,而使用Berger和作者实测的康普顿谱形时,评价很接近,分辨率对照射量率的变化
8.The use of dose-effect relationship with exposure time correction factor G inevaluating doses and their confidence intervals,dose estimation in mixedn-γ exposure, and identification of high by nonuniform acute exposure tolow LET radiation and its dose estimation are discussed in more detail.
对用有照射时间修正因子G的剂量-效应曲线,估算剂量及其置信区间和在(n、γ)混合照射时的剂量估算方法,以及对通过泊松分布参数检验判断低LET辐射局部急性照射并估算其剂量的方法作了较详细的介绍。
9.DPO at all frequencies recovered only to about 1/4 of the pre-exposure level, with the only exception that recovery was complete after 1 week at & kHz. In contrast, CM at all frequencies recovered to the pre-exposure level at the same time. The results seem to indicate that DPO is more sensitive to noise exposure than CM and, also, that the former changes proir to CM.
震后一周DPO除在8kHz时恢复至接近震前水平外，其余频率只恢复至震前的1／4左右或稍多．与之对比，各个频率的CM在一周时均完全恢复至震前水平，似说明DPO较CM敏感。
10.It was found that plasma content of ANP after heat exposure decreased significantly,CDD and AⅡ content after heat or noise exposure increased obviously,ET content decreased significantly after exposure to combined factors.
高温组血浆ANP含量明显低于对照组（P＜0．05）。 高温组、噪声组血浆CDD含量明显高于对照组（P＜0．05）。
