变化性的

The direct incorporation of U-13C glucose was estimated by the intensity increase of m/z to F(F was parent fragment, and n was the carbon number in the fragment), while the total isotope incorporation from the added 13C could be calculated according to the abundance ratio increment summation from m/z (Fa+1) through (Fa was the fragment containing all original skeleton carbons, and T was the carbon number in the amino acid molecule). The 13C enrichment in the target compound was expressed as atom percentage excess, and that of D-amino acid needed to be corrected by the coefficient of hydrolysis-induced racemization. The 13C enrichment reflected the carbon turnover velocity of individual amino acid enantiomers, and was powerful to investigate the dynamics of soil amino acids.

外加葡萄糖直接合成氨基酸的比例可利用质谱碎片的相对强度变化来评价（n为质谱碎片F中含有的碳原子数目）；而源于葡萄糖的13C同位素在氨基酸分子中的富集程度是所有同位素峰相对强度变化的总和。13C在目标化合物中的富集比例用原子百分超评价，D氨－基酸的APE还需进一步利用水解诱导的外消旋化系数校正。13C在目标化合物中的富集程度可反映各氨基酸手性异构体的碳循环速率大小，是研究土壤氨基酸动态变化的有力工具。

A combination of DLS and SLS was used to characterize the temperature dependence of the diameter and structure of the nanoparticles and the corresponding hollow spheres, and it was found that the temperature dependence is completely reversible.

用DLS跟踪了纳米粒子的核酶解过程中散射光强和粒径的变化，并用FTIR，SEM和TEM表征了酶解前后纳米粒子的结构和形貌的变化；结合采用DLS和SLS技术表征了纳米粒子和空心球的粒径及结构对温度的依赖性，发现PNIPAM空心球的温敏性变化是完全可逆的。

Since curly leaf hybrid could be recognized at early stage,and displayedobvious dwarfness,choosing"Zha′ai 76"as paternal parent not only raised thehybrid-selecting efficiency from the pollinated progenies,but also raised thebreeding efficiency of apomctc dwarf roostock of apple.

鉴别宽叶型杂种较难、需时较长(2-3年生时)并需与染色体倍性鉴定法相结合，因其形态变化较小而生长势又与平邑甜茶无融合生殖苗无明显差异；鉴别光叶型杂种因父本染色体组的影响加大而从形态上容易些，但也需过氧化物同工酶法或染色体倍性鉴定法相配合；皱叶型杂种因在苗期刚出1-2片真叶时就表现明显的标志性状、能从叶片形态上准确鉴别出来，毋须染色体倍性鉴定等复杂方法；因皱叶型杂种能早期鉴别，又表现明显的矮生性，因而选用"扎矮76"做父本不仅大大提高了平邑甜茶授粉后代中选择杂种的效率，而且提高了苹果无融合生殖型实生矮砧育种的效率。

In the investigation of Cu-Zn-Al SMA, the influence of quenching speed, shape memory thermal treatment on SME, microstructure and morphologies was discussed. The changes in morphology and interfaces were in situ metallographic observed during thermal cyclings in order to control the degradation of two way shape memory effect . The stabilization of stress induced martensite variants method and the accordingly changes in microstructure were studied in detail. The mechanism was also compared between SSIM and TWME training method. From the above in situ observation results, the interface structure and especially the twin related A: B type variant pair were examined by HREM to clarify the role of movability of interfaces and the changes in variants orientation in inducing the degradation of the TWME. During developing the Ni-Ti-Hf SMA melt spinning ribbon, it was found the morphology and structure embodied the SME and was directly effected by chemical composition and technique factors, such as the different content of Hf, the speed of copper roller rotation and etc. Therefore, the morphology and structure were extensively examined.

在对Cu-Zn-Al形状记忆合金研究中，研究了提高记忆效应的热处理淬火速度、记忆热处理方式对Cu-Zn-Al形状记忆合金组织结构的影响；为了弄清双程记忆效应衰减的原因，原位动态观察了热循环过程中，合金组织形貌及界面的变化；因形状记忆合金必须经记忆训练才能具有双程记忆效应，系统地研究了应力诱发马氏体稳定化训练方法和这种方法引起的双程记忆合金组织结构的变化，比较了它与双程记忆效应训练方法诱发TWME机制的异同；因在原位动态观察中发现界面可动性及两侧变体取向的变化，伴随着记忆效应的衰减，用HREM详细研究了变体的界面结构，特别是A：B型变体界面结构及变体内部结构。

Therefore, we used physical mechanism trigger drug release from liposome. In this study, the small unilamellar vesicles liposome were encapsulated hydrophilic marker drug 5(6)-Carboxylfluorescein and prepared by the thin layer hydration and extrusion methods. Liposomal suspension were exposed to the magnetic field.

因此希望以物理方式驱动微脂粒药物释放，本研究以薄膜水合法与挤压法制造单层微胞微脂粒包覆水溶性药物5(6)-Carboxylfluorescein的萤光指示剂经由磁场照射，以粒径仪、界面电位仪与萤光仪发现微脂粒经由磁场照射后使得微脂粒形体改变，粒径和带电性明显变化、萤光药物释放量增加。

In the course of five-week endurance training, although red blood cell, hemoglobin and haematocrit mean values of the athletes did not change significantly, as for athlete individual, the exercise-induced lower hemoglobin occurred on them all.

研究结果与讨论 1、五周耐力训练过程中，虽然运动员RBC、Hb、Hct均值在一定范围内波动且未发生显著性变化，但就运动员个体而言，五周训练期间均出现了不同程度的运动性血红蛋白降低。

Abstract〕ObjectiveTo evaluate the clinical effects of combination of nebulized terbutaline and budesonide on old patients with acute exacerbations of chronic obstructive pulmonary disease.

目的：探讨联合雾化吸入硫酸特布他林和布地奈德针对老年慢性阻塞性肺疾病急性发作期肺功能、血气分析及嗜酸性粒细胞变化的临床反应性。

Objective To assess the changes of local and global left ventricular systolic long axis function in patients with diastolic heart failure by strain rate imaging and compare with isolated left ventricular diastolic dysfunction and left ventricular systolic heart failure to discuss its clinical value.

目的 应用应变率显像技术检测舒张性心力衰竭患者左心室局部及整体心肌长轴收缩功能的变化，并与单纯性左心室舒张功能障碍和收缩性心力衰竭患者进行比较，进一步探讨其临床意义。

Results 20 ictal seizures in 17 cases showed the characteristics of typical frontal lobe origin as follows: postural seizures, gestural automatism, vocalization, adversive seizures and changes in expressions.

结果 额叶癫痫常见的发作形式有：姿势性发作，具有额叶癫痫特点的自动症；复杂部分性发作时伴发声、偏转或表情的变化，有时出现发作性情绪改变或强迫思维等少见症状。

The different kinds of coal ash have obviously different influences on concrete slump and concrete slump losses because of the different fineness, water requirement ratio and ignition loss, and the fine coal ash with low ignition loss can more obviously restrain the concrete slump losses.

随着粉煤灰掺量增加，混凝土早期强度随着粉煤灰掺量而变化，当掺量在20％左右时，对7天强度影响不大，而当掺量＞30％时，早期强度明显降低；但掺粉煤灰混凝土后期强度增长较快，而且在掺量＜30％范围内随粉煤灰掺量增加而增大。 3。粉煤灰混凝土具有十分良好的工作性，流动性及填充性，易于泵送。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。