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- Radioactive tracer techniques 放射性示踪技术
- The major difference between the two is that instead of a positron-emitting substance, SPECT uses a radioactive tracer that emits high-energy photons. 这两种技术最大的区别在于,单光子发射计算机化成像不用发射正电子的物质,而是用一个能发出高能量光子的有放射性的跟踪剂。
- The major difference between the two is that instead of a positron-emitting substance,SPECT uses a radioactive tracer that emits high-energy photons. 这两种技术最大的区别在于,单光子发射计算机化成像不用发射正电子的物质,而是用一个能发出高能量光子的有放射性的跟踪剂。
- The rectified de background clearance curves obtained using 133 Xe as radioactive tracer were similar to those obtained using 99m Tc as tracer. 用吸入133Xe示踪剂法得到的G负荷去本底清除曲线,经校正后,与用注射99mTc法测得的G负荷血容曲线很相似。
- When they reached a transcendental high, they were asked to pull a kite string to their right, releasing an injection of a radioactive tracer. 当他们达到超越的高度,他们被要求去拉一条风筝线到他们的右侧,释放放射性追踪器的注射剂。
- Tracer techniques give information about structure and reactions in solid state physics. 示踪法技术在固态物理学方面给出有关结构和反应的信息。
- The chemical tracer, especially the perfluorocarbon tracer and sulphur hexafluoride, has been used much more popularly than the radioactive tracer nowadays. 化学示踪剂已取代放射性示踪剂在混相驱中的主导地位,其中,全氟环烷烃和六氟化硫是目前现场广泛试验和应用的化学气体示踪剂。
- A radioactive tracer. 放射性追踪剂
- The use of radioactive tracers to study biological processes. 用放射性追踪的使用来研究生物进程。
- C assimilate distribution and accumulation at fore|anthesis in various organs of hybrid spring wheat 901 and its parent Shan 229 were studied by using 14 C tracer techniques. 研究结果表明:从花前标记到整个灌浆期,春小麦901 叶和鞘中14 C同化物分配率分别下降23?1 %25 和7?8%25 ,陕229 下降了32.;1%25 和7?7%25 。
- In this paper, three basic approaches to the SGD flux, including direct measurements, modeling and tracer techniques, and their tendency are also presented in detail. 文中介绍了该领域的三种主要方法:原位测量方法、模型技术和示踪技术,且探讨了其发展方向及趋势。
- The highly sensitive radio tracer technique is often used to follow tagged synthetic soil ingredients. 高灵敏度的放射性示踪技术,已经常用于跟踪标志污垢成分的试验。
- Patients are given radioactive tracers (via an IV or inhaled as a gas) that send out signals, which are picked up and deciphered by the PET scanner. 病人通过静脉注射或者吸入的方式被给予放射性示踪剂,然后放射性示踪剂发射出的射线可以被PET探测器探测到并解码。
- Nitrogen nutrition of Panax quinquefolium Linne was studied by using 15N tracer technique. 通过15N示踪微区试验,研究了西洋参氮素营养特性。
- The fluorescent tracer technique is an effective means to detect the residual quantity of water treatment agent. 利用荧光示踪技术检测水处理剂的残留量是一种有效的方法。
- Additional "rays" for this purpose were discovered, including ultrasound and radioactive tracers, and contrast agents were developed to reveal previously indiscernible structures. 为了达到这一目的,除了放射线,还有超声和放射线示踪器和造影剂在揭示先前看不见的结构的过程中发展起来。
- As a new method, REE tracer technique has been widely used in soil erosion research. 摘要REE示踪技术作为一种新手段,在土壤侵蚀研究中得到广泛的应用。
- Keywords Parkinson disease;Annexin V;apoptosis;radioactive tracer; 关键词帕金森病;膜联蛋白V;凋亡;放射性示踪剂;
- The effect of sink source ratio and position on partitioning of 14 C photosynthates in Chinese Date was studied by 14 C tracer technique in this paper. 运用1 4C示踪技术对赞皇大枣果实发育期库 -源比例和相对位置对1 4C -光合产物在不同器官中的分配进行了研究。
- SUITABLE ACTIVATED CARBON-13 TRACER TECHNIQUES 可活化碳-13示踪技术(英文)