核素

This research is to provide a new ＂drug＂ that the paramagnetic radioactive isotopic nanometer-iron for treatment tumor, it have some characteristics comprising the paramagnetism and the radioactive activity, it can be located to the position of focus with three-dimensional rotating magnetic field.

本文提出一种新型的抗肿瘤药物——顺磁纳米铁核素，它具有超顺磁性、放射性活度和较好的磁导向功能的特点，在引导磁场的作用下可有效定位于靶区。

In order to investigate the effect of minior actinide data on integral parameter, the accelerator-driven minior actinide benchmark system was selected in this work.

为了确定加速器驱动系统中少锕系核素的核数据的不确定性对此系统中积分参数的影响，选择一铅－铋冷却次临界系统来进行分析，选择不同的微观评价库，CENDL-3.0，JENDL-3.2及ENDF/B-VI。

Making use of the characteristic of neutron,without electricity 、strong penetrating power、ability to di...

中子散射技术利用中子不带电、穿透力极强、能直接鉴别核素、较之X射线对轻元素灵敏、具有磁矩和波粒二象性等特点，使之成为一种独特的，从原子和分子尺度上研究各种物质结构和微观世界运动规律的高新技术。

Ventricle and lumbar puncture and cerebrospinal fluid of double or phenol red test to identify radionuclides.

这点可通过脑室及腰椎双重穿刺和脑脊液酚红或放射性核素试验来鉴别。

Results In 108 splenic preservation cases, who were operated or non-operated, the value of 1gM and CD3 was significantly higher than that in the splenectomy group (P.01); CD8 and CD4 were significantly higher that those of splenectomy group (P.05); the percentage of pockmark red cells was lower than that splenectomy group (P.01) CT, BUS and 99mTc nuclide scan confirmed that the structure of the preserved spleen had recovered to normal, and the ruptured surface of the spleen had completely healed I mouth after operation.

结果 108例保脾患者经手术或非手术治疗后，其IgM，CD3远高于切脾组，差异有显著性(P.01)；CD8和CD4显著高于切脾组(P.05)，痘痕红细胞百分率低于切脾组(P.01)。CT，B超，99锝核素显像等证实保脾组1个月后脾结构恢复正常，裂口创面完全愈合。

Objective: To investigate the clinical significance of (superscript 99m)Tc-DTPA renal dynamic imaging in evaluating renal function as intravenous pyelography detection failed.

目的：探讨放射性核素(上标 99m)Tc-DTPA肾动态显像对静脉肾盂造影不显影患肾功能评价的临床意义。

Of the 54 cases,there were 46 cases of affected ureteral disappearance in IVU,8 cases of affected ureteral varicosis in pyelography,3 cases of hyperplasia of prostate in B ultrasonography,4 cases of affected renal function descended in RNI.

其中有46例在静脉尿路造影检查中患侧输尿管不显影或显示不清，8例在逆行肾盂造影中有患侧输尿管迂曲，3例在B超检查中有前列腺增生症，4例在放射性核素显像检查中有患侧肾功能下降。

Tp the time required for one-half of the atoms in a group of radioactive atoms to decay.

放射性药物radiopharmaceuticals是指药物的本身含有放射性核素，用于人体疾病的诊断与治疗的特殊药物。

Therefore, the research on the radionuclide migration behavior is an extremely essential question for the high-level radioactive waste disposal.

因此对放射性核素的迁移行为和规律的研究是高放废物处置的一个十分关键的问题。

The whole process is completed within 200 s. The 91Sr product is radioactively pure, with an overall recovery better than 90%. The decontamination factor is greater than 10^2 for 92Sr, and better than 10^3 for other radionuclides. The quality of 91Sr specimens thus prepared can meet the requirements for its decay data measurements.

用辐照235U的裂变产物溶液进行了全流程验证，得到的91Sr溶液为放化纯，Sr的化学回收率大于90%，对92Sr的去污因子大于10^2，对其它主要核素的去污因子大于10^3，结果满足衰变数据测量的要求。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。