下降了...

The results showed that the decreasing of the hardness was inhibited, the 1st fracture drop off was maintained, and those such as the production of the ethylene , the degrading of the chlorophyll, the decreasing of the titratable acid were inhibited, as well as the changing of the enzyme activities. And 1-MCP can keep a better condition of the inner structure of the tomato.

结果表明，1-MCP的处理减缓了硬度的下降，在一定程度上可以保持果实的脆度，抑制乙烯生成，阻止叶绿素的降解，降低可滴定酸的减少，对酶活变化起到了一定的抑制作用，同时较好地保持了番茄果肉组织结构的完整性。

The effects of solution\'s pH value, mol ratio between phenyl aldehyde and L-Arginine, concentrations of sodium chloride, ammonia chloride andL-Lystine, initial concentration of L-Arginine on precipitation rate of a -tolylene arginine were investigated, the results indicated that phenyl aldehyde precipitation method\'s appropriate pH value was higher than 11, suitable mol ratio between phenyl aldehyde and L-Arginine was 1.25, initial concentration of L-Arginine was must higher than 15g/L, sodium chloride had little effect on precipitation rate, on the contrary, ammonia chloride and L-Lystine had great effect on it, both of them must be eliminated; At the same time, adsorption isotherm at 25 C of L-Lystine on anion exchange resin A was measured, the result showed that the maximal equilibrium adsorbance was 30mg/g, the influences of solution\'s pH value, temperature, concentration of chloride ion on adsorption of L-Lystine by anion exchange resin A were also studied, the results indicated that appropriate operational pH value was 0.5 0.2, the effect of temperature on adsorption ratio was little, process could be operated at room temperature, the concentration of chloride ion must be eliminated.

考察了溶液pH值、苯甲醛与L-精氨酸摩尔比、氯化钠与氯化铵浓度、L-赖氨酸浓度、L-精氨酸初始浓度对苯甲醛沉淀L-精氨酸的影响，结果表明，沉淀反应的适宜pH值大于11，苯甲醛与L-精氨酸的适宜摩尔比为1.25，(来源：Aa6BC论文网www.abclunwen.com)L-精氨酸适宜的初始浓度在15g/L以上，氯化钠的存在对沉淀率基本上没有影响，而氯化铵和L-赖氨酸的存在使沉淀率下降；同时测定了25℃时阴离子交换树脂A吸附L-赖氨酸的吸附等温线，表明其最大平衡吸附量为30mg/g，考察了溶液pH值、温度、氯离子浓度对阴离子交换树脂A吸附脱除L-赖氨酸的影响，结果显示从L-精氨酸和L-赖氨酸混合液中吸附分离出L-赖氨酸的适宜pH值为10.5±0.2，温度对L-赖氨酸吸附率影响不大，吸附过程可在室温下进行，氯离子的存在使L-赖氨酸的吸附率降低。

The results show that after heat treatment, the tensile strength of the alloy increases by 49 MPa, the hardness increases from 21.6 HRC to 25 HRC, and the impact fracture toughness decreases; fracture characteristic is intercrystalline fracture in as-cast, it is intercrystalline and transcrystalline mixed fracture after heat treatment.

结果表明：热处理后合金的抗拉强度σ提高了49MPa，硬度由铸态时的21.6HRC提高到了25 HRC，但合金的冲击韧度出现了较明显的下降；铸态时合金的断裂主要呈沿晶断裂特征，热处理后合金断口里沿晶＋穿晶的混合型断裂特征。

A short span of a year's time, China's A shares from the 6124-point transversion Feng straight points fall to the abyss of 1665, the cumulative decline of up to an alarming degree of 72.8 percent, the largest in the world.

了一年的时间较短，中国从A股6124点颠锋直点下降到了1665年的深渊，最多累计降幅达到了百分之72.8，是世界上最大的程度令人吃惊。

One is the interstitial water or zeolitic water, it corresponds to the broad absorptive band at around 3498 cm〓 that results from the association of water owing to the H-bonding. 2 The other is the water coordinated to lanthanum, corresponding to the very strong sharp peak at 3607cm〓, The peaks at around 1600cm〓 were assigned to the bending vibrations of water in LaHCF, two sharp peaks were found at 1601cm〓 and 1624cm〓 respectively, which correspond to two bending vibrations of the interstitial water and the coordinated water respectively in the structure of LaHCF.

通过电化学扫描法，得到了一种有电活性的稀土元素化学修饰电极—铁氰化镧修饰电极；并用循环伏安法进行了表征，比较了碱金属离子Li〓，Na〓，K〓，Rb〓，Cs〓和H〓在膜中的通透性，结果表明氢离子能透过铁氰化镧膜而碱金属离子则不能透过铁氰化镧膜；稳定性研究表明，该修饰电极在纯1.0mol/L HCl溶液中扫描，峰电流迅速下降，到第10圈时峰电流几乎为零，而在混合溶液1.0mol/L KCl+0.10mol/L HCl。

Furthermore, it can reduce the purchase expense of many users as well as dropping the sales volume of phonograph record which will cause harm to the copyright owners' legitimate benefit. Therefore it can be constituted as "reasonable use".

而且，这种网络上的共享行为，节省了许多用户购买的费用，造成了唱片销量的下降，对著作权人的合法利益造成了不合理的损害，因此可以认定用户的这种行为不构成合理使用。

The results show that when an electromagnetic field with 1000 Hz frequency and 20 kW power is imposed, the surface roughness of hollow billets is decreased by 50%, the solidification structure is refined, the tensile strength is improved by 40%, and the elongation is improved by 50%, averagely; when the power is heightened to 30 kW, the solidification structure is coarsened and the mechanical properties are worsened.

研究结果表明：当施加频率为1kHz的电磁场时，空心管坯的表面粗糙度降低了约50％；当施加功率为20kW的电磁场时，空心铜管坯的组织得到细化，抗拉强度提高了约40％，延伸率提高了50%；当施加30kW的电磁场时，铜管坯组织粗化，力学性能下降。

ABSTRACT In order to study the thermally activated characteristics of plastic deformation and the effect of alloying element on the thermal activation of structural steels, the properties of plastic deformation for 20g and 13Ni3CrMoV steels have been examined in the temperature of 77—473K and strain rate of 〓. The experimental phenomena show that the effective stress of plastic deformation decreases with the increase of alloying elements content (namely solute solution softening) and the frequency factor deceases with the increase of effective stress.

本文以13Ni3CrMoV钢焊接结构的动态断裂破坏为背景，通过系统测试20g和13Ni3CrMoV钢的动态屈服特性，分析比较了结构钢的形变热激活特点，从频率因子〓随有效应力σ〓增大而下降和合金固溶软化的实验现象出发，在位错以弯折方式克服晶格Peierls位垒的基础上，提出了溶质原子与螺型位错热激活弯折相互作用的物理模型和σ〓-T分段线性关系的形变热激活理论假设，并借助计算机数值模拟，分析探讨了合金固溶软化的微观机制。

Increased spin disorder and a decrease of with increasing Fe content are evident. It depopulates the hopping electrons and weakens the double exchange. From resistivity and magnetization data, it is expected that the addition of Fe can introduce grain boundaries and form antiferromagnetic clusters.

电阻率的峰值随着Fe的增加而增大，并且峰值对应的温度TIM向低温移动，随着外加磁场的增大电阻下降，产生MR效应，这是因为随着掺杂的增加，自旋无序增加，外场的增加抑制了自旋的扰动，在顺磁温区内，电子自旋形成了随机的磁结构，产生电子局域，破坏了极化子形成的环境，因此输运机制由绝热极化子输运转变为变程跳跃机制。

For the first time, the dynamics changing process of KGM chain in vacuum is proposed, We obtained the following results: polymerization degree influences the stability and shapes of the chain, the chain stability drops with the increasing of polymerization degree, for the high polymerization degree KGM, KGM chain takes on irregular curl state; acetyl group is not the main factor influencing chain conformation , during the course of dynamics movement KGM chain takes on irregular curl state before and after acetyl group was doffed, Extending and curling states change periodicity and has good flexibility.

首次提出了KGM链的动态模型，得到了以下结果：聚合度影响其链形态和稳定性，对于高聚合度的魔芋葡甘聚糖来说，其链呈现无规卷曲状态且稳定性下降，在整个动态运动过程中KGM链脱乙酰基前后都呈现无规卷曲状态，而且其伸展和卷曲的变化是周期性的，表现出了很好的柔性，说明乙酰基不是影响其链形态的主要因素，二面角能和静电作用是真空中影响单链构象的主要的键合作用力和非键合作用力，但是乙酰基对氢键作用的影响(来源：ABC6c论文网www.abclunwen.com)较大。

Shop assistant: Please check at the door.

店员：请您到门口柜台交费。

In the end, transportation of PAHs in the environmental matrix was preliminarily investigated and discussed according to PAHs data of soils and sediments from a certain region in Shanghai. The result indicated that there are two or more pathways on PAHs transportation in the environmental matrix.

最后，对上海特定地区内PAHs在环境介质中的迁移径途进行了分析讨论，结果表明上海市土壤和沉积物等环境介质中PAHs的迁移存在多种途径。