半衰期

IGFBPs在体内循环系统中能与IGFs结合，调控IGFs的半衰期，提高IGFs的生理活性。

IGFBPs in circulation system of the animal organisms can bind the IGFs , regulate IGFs half-life period and enhance IGFs biological activity .

天然酶的半衰期短，稳定性差。

Since the natural enzyme has a short half-life period and a poor stability .

β缓发双质子衰变核~（26）P半衰期的测定

Half-life measurement of the β - delayed two-proton decay nuclide ~ ( 26 ) p

重丰中子同位素~（237）Th半衰期的测定

Half-life Measurement of Heavy Neutron-rich Isotope ~ ( 237 ) Th

但VEGF蛋白质的半衰期较短，限制了临床应用。

However , short half-life of VEGF protein limits clinical application .

利用加速器质谱学中的入射离子X射线方法测定~（79）Se的半衰期

Half-life measurement of ~ ( 79 ) Se with projectile X-ray method in AMS

SOD模拟物铜（Ⅱ）甘氨酸的毒性及血清半衰期研究

A Preliminary Study of Toxicity and Efficacy of Cu (ⅱ) - Gly SOD Simulacrum

k0-NAA相关核参数（~（97）Zr半衰期）的精确测定

Determination of k_0-related nuclear parameters-precise determination of ~ ( 97 ) Zr half-life

~（237）Th的半衰期测量

Measurement of ~ ( 237 ) Th half-life

在Be和Au中~7Be半衰期差别的测量

Measurement of Difference of Half-Life of ~ 7Be in Be and Au

~（79）Se半衰期计算

Calculation of Half-Life for ~ ( 79 ) Se

p53基因突变是人类肿瘤最常见的基因突变，突变的p53蛋白半衰期延长，在肿瘤细胞内聚集。

Tumor suppressor gene p53 is the most commonly mutated gene in human cancers .

消除半衰期t1/2β为（0.84±0.28）h；

The mean plasma elimination half - life ( t1 / 2 β ) was ( 0.84 ± 0.28 ) h.

新核素~（65）Se半衰期的首次实验测定

First Experimental Determination of Half - Life for New Nuclide ￣( 65 ) Se

放化法测定~（126）Sn的半衰期

Measurement of half-life of ￣( 126 ) sn by radiochemical method

ICPMS法测量~（126）Sn半衰期

MEASUREMENT OF HALF-LIFE OF ~ ( 126 ) Sn BY ICP-MS On Mediation Method

~（252）Cf放射性衰变半衰期的测量

Determination of disintegration half - life of ~ ( 252 ) Cf

释放半衰期的对数logt（1/2）值亦与logP值相关。

It also shows that log t1 / 2 ( log of biological half life ) values are related to log P values .

在相同处理条件下，苄嘧磺隆除草剂在土壤中的降解半衰期与土壤的pH值呈正相关，土壤pH值越高，其在士壤中消失的就越慢，半衰期就越长。

Under the same treatment , the half-life of bensulfuron-methyl herbicide degradation showed significant difference because of different pH values among the soils .

修正CpEA-PLS用于多环芳烃光解半衰期QSAR的研究

Application of modified Cp_EA-PLS to QSAR of direct photolysis half-lives of PAHs

结论：NGF在体内消除半衰期较短。

CONCLUSION : The elimination half life of NGF in mice was short .

泡沫稳定性的评价主要采用半衰期（min）、泡沫量（ml）和携液量（ml）作为衡量指标。

The assessment index of foam stability mainly adopt the half-life and the foam quantity and the liquid of forming foam .

低温金属环境中~（198）Au半衰期的测量

Measurement of ~ ( 198 ) Au β ~ & Decay Half-Life in Metal Au at Low Temperature

其表观消除速率常数k为0.00117min－1，其表观半衰期为59.23min。

The apparent elimination rate constant k was 0.001 17 min - 1 . The apparent half life time t 1 / 2 was 59.23 min.

本工作应用放化法测量了￣（79）Se的半衰期。

In the present work , the half life of ￣( 79 ) Se has been measured using radioChemical method .

甲胺磷的土壤降解过程符合一级动力学方程，降解半衰期为2d左右。

The degradation process of methamidophos in soil environment followed the first-order equation , and its half-life was about 2 days .

利用递次衰变关系确定新核素~（239）Pa的半衰期

Determination of the half life for a new nuclide 239 pa by analyzing the decays of a radioactive series

修饰SOD的分布半衰期和消除半衰期比修饰前延长至1.9和8.6倍。

The distribution half-life and the elimination half time of the modified SOD increased 1.9 and 8.6 fold compared with the free SOD .

肝窦内皮细胞和枯否细胞中bcl-2和GAPDHmRNA半衰期的测定

Half life determination of bcl-2 and GAPDH mRNA in sinusoidal endothelial cells and Kupffer cells of rat liver

在45℃连续柱式运转反应，DE值平均98.62%，半衰期151天。

DE values for continuous column reactor operating at 45 ℃ averaged at 98.62 % and the half-life of the column was 151 days .