核素

With the progress of the theory and methodology of Cosmogenic surface exposure dating, the technique has been widely used in studies of Quaternary glaciations, impact craters, volcanic surfaces, and fault faces.

宇宙成因核素地表暴露测年技术的理论和方法日臻完善，目前它已被广泛到第四纪冰川、撞击坑、火山地貌、断层面等地学问题中来。

Cosmogenic nuclides are primarily generated by reaction of target nuclei exposed near earth surface and galactic cosmic radiation. The reactions producing Cosmogenic nuclides mainly involve spallation, capture of neutrons and muon reaction.

宇宙成因核素主要是由来源于银河系的宇宙射线与暴露于地表的物质作用形成的，作用机制主要包括裂变、中子捕获和介子反应。

The conjugate products were radiolabeled in various buffer over a range of concentrations and pH, as well as stannouschloride dihydrate on Re labeling.

通过对不同标记条件下结果的分析，确定上述四种核素的最佳标记条件／'Y的标记完全按照&'In的标记条件进行，'％Re的标记则在参考的&v的标记条件下，进行了较大的忧化。

Methods:161 patients with chronic stable angina pectoris were treated with Elantan Long or isosorbide dinitrate.

对161例慢性稳定型心绞痛患者进行长效异乐定与硝酸异山梨酯对比治疗的临床观察，并采用Holter 24h心肌缺血总负荷及放射核素心肌灌注显像评估缺血心肌面积。

Methods 36 cases of prostate cancer with bone metastasis were measured with radionuclide bone imaging before and after endocrinotherapy.

目的 研究放射性核素骨显像在内分泌治疗前列腺癌骨转移的应用价值。

Objective To evaluate the radionuclide bone imaging in the evaluation of the effect of endocrinotherapy on prostate cancer with bone metastasis.

目的 研究放射性核素骨显像在内分泌治疗前列腺癌骨转移的应用价值。

Objective To evaluate the radionuclide bone imaging in the evaluation of the effect of endocrinotherapy on prostate cancer with bone metastasis.

目的 研究放射性核素骨显像在内分泌治疗前哨腺癌骨转移的应用代价。

The examine results were analyzed with of sex, age, chronic medical history, stability of blood dynamics, the number of melaena or enterorrhagia episodes in 4 hours before imaging, former bleeding history of gastrointestinal tract, and therapeutic intervention for bleeding.

方法68例下消化道出血患者进行^99mTc—RBC显像，观察显像结果，采用Logistic多因素回归分析了解患者性别、年龄、慢性病史、检查时血流动力学指标是否稳定、检查前4h血便次数、以前消化道出血史、是否正在进行止血治疗等因素间的关系，并将核素显像定位结果与患者手术、DSA或肠镜检查结果进行比较。

In the article,technologies of examining the liver diseases in children at present,including traditional biochemical examining,ultrasound-guided needle aspiration biopsy and interventional therapy,contrast-enhanced ultrasound,magnetic resonance cholangiopancreatography,multislice spiral CT and multislice spiral CT angiography,hepatobiliary scintigraphy,indocyanine green excretive test as well as screening program for inborn errors of metabolism etc,were reviewed.

本文就目前儿科肝脏疾病的传统生化检查及B超引导下肝穿刺术和介入治疗、超声造影、磁共振胆胰管成像、多层螺旋CT及多层螺旋CT血管成像、核素肝胆显像、吲哚氰绿实验、遗传代谢筛查等技术进行综述。

Correct diagnosis were made in 34 malignancies and 6 false positive lesions were excluded based on moiphology and 18F-FDG uptake status of the lesion. There were 6 false positive and 2 false negative cases. Furthermore, extrathoracic metastases which were not showed on previous CT image in 4 patients including one in the adrenal gland and 3 in the bone were detected by 18F-FDG imaging.

根据形态及核素摄取特征，18F-FDG符合线路显像正确检出恶性病变34例，排除恶性病变6例，出现假阳性6例和假阴性2例，对原发肺癌诊断的灵敏度、特异性和准确性分别为94.4％、50.0％和83.3％；同时，在4例患者中检出了CT未发现的、发生于肾上腺和骨的肺外转移。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。