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For the PUU/BO-g-VER (n-butanol graft VER network)hybrid film, the miscibility between the soft and hard segments in PUU phase was improved byadding the BO-g-VER network into PUU, resulting in remarkable reinforcement effect andgreat improvements of mechanical properties for the films. In the PUU/200-g-VER [Mn: 200,poly graft VER], the 200-g-VER network had considerable compatibility withboth hard segments and soft segments in PUU phase, then good reinforcement effect wasrealized, giving rise to higher tensile strength and elastic module, lower elongation at break ofthe hybrid films.

由于BO-g-VER与PUU硬段具有较好的相容性且促进了PUU软硬段间的微相混合,导致PUU/BO-g-VER hybrid膜的力学性能有较大程度的提高,体现了明显的增强效果。200-g-VER(分子量为200的单官能团聚醚接枝VER)与PUU软硬段均有很好的相容性,因此PUU/200-g-VER hybrid有较好的增强效果,使胶膜的拉伸强度和弹性模量提高,断裂伸长率下降。

Compared with the general single-tube model, this paper takes the horizontal bundle absorber as the research object, analyses the principal of dual-solution two-phase flow heat and mass transfer in absorber, introduces the wetting ratio to describe the incomplete wetting performance and view it as the changeable parameter to explain it's influence to total performance of absorber and cooling capability of evaporator.

与以往广泛采用的单管模型相比,本文采用了实际中应用较多的水平管束式吸收器作为研究的对象,对吸收器内二元溶液两相流动传热传质机理做了深入细致的分析,引入了润湿率 WR 这一参数来衡量实际运行中出现的管壁的不完全润湿特性,并将其作为可变参数分析它对吸收器总体性能以及蒸发器制冷能力的影响。

The results indicate that the growth of tumor is inhibited by means of transfusion blood with ultraviolet radiation of hematoporphyrin. The most remarkable inhibitory effect is in ultraviolet radiation and hematoporphyrin group. The generation of singlet oxygen by PDT may be one of the mechanisms of killing tumor cells.

经紫外光照射的血或含有血卟啉的血均对肿瘤生长有抑制作用,而且紫外光照射与注人血卟啉相结合对抑制肿瘤生长效果最佳,该光动力学疗法对肿瘤治疗作用机制之一可能是通过产生单态氧而杀伤瘤细胞的。

Monocholesterylsuccinate is synthesized using cholesterol and succinic anhydride as raw materials in heptane and trace pyridine as catalyst.

以正庚烷为溶剂、吡啶为催化剂,采用丁二酸酐和胆固醇以均相法合成了丁二酸单胆固醇酯。

By means of traditional criterions of generalized integral's convergence and divergence, this paper, from the analysis of integrated function's nature, discovers a series of new criterions, which are briefer and more suitable: on the aspect of generalized integral for functions of a single variable, through the investigation of integrated function, together with the inner relationship between positive series and generalized integral in infinite interval under the condition of positive function, it gives several criterions of generalized integral's convergence and divergence, which are similar to positive series' criterions of convergence and divergence.

本文从分析被积函数本身所具的性质出发,借助传统的广义积分敛散性判别方法,发现1系列更简捷适用的新判别方法:单变量函数广义积分方面,通过考察被积函数,结合正项级数与正函数情形下无穷区间上广义积分的内在联系,给出了几个与正项级数敛散性判别法相类似的广义积分敛散性判别方法;多变量函数广义积分方面,着重讨论了广义2重积分和广义3重积分,结合被积函数的特点,运用比较判别法和柯西判别法,本文给出了判别广义2重积分收敛的1种新方法。

The initial charge and discharge capacity of VO2 nanorods is 254.08 and 247.60mAh/g, respectively.

掺钼抑制了VO_2纳米棒深放电时相分离,增大充放电容量,对结构起支撑和"钉扎"作用,抑制了晶体单胞结构的改变,改善了循环性能。

In addition we also make research on the residual curve velocity analysis and find that its application is not good and the efficiency is iow. The reasons is that the hypothesis is rigid and it is a local optimizing method.

本文还对目前实用性较强的剩余曲率速度分析方法进行了研究,指出该类方法的应用效果不佳和效率较低的原因在于,理论假设过多,与叠前深度偏移的初衷相违,同时该类方法是单点速度分析,是一局部优化方法,而无法解决具有强烈横向速度变化以及地下构造倾角较大的地震速度建模问题。

Characteristics of the Internet traffic data flow are studied based on the chaos theory. A phase space that is isometric with the network dynamic system is reconstructed by using the single variable time series of a network flow. Some parameters, such as the correlative dimension and the Lyapunov exponent are calculated,and the chaos characteristic is proved to exist in Internet traffic data flows. A neural network model is constructed based on radial basis function to forecast actual Internet traffic data flow.

摘 要:应用混沌理论,分析了网络流量,用单变量的网络流量时间序列重构与网络动力系统等距同构的相空间,进而计算了实际网络的关维数和Lyapunov指数,并证实了网络流量存在混沌特性;据此建立了基于径向基函数神经网络的模型,并对实际网络数据流进行了预测。

The present project adopted the combination approach of electrical temperature probe and optical fiber transmission. Based on the mature technology of electrical detection, high-voltage insulation and anti- electromagnetic interference of optical fiber couple, the multi-channel itinerate detection system controlled by single-chip microcomputer has been designed to implement the on-line temperature monitoring for the most familiar electrical facilities ? contact points of high-voltage switches in power systems.

本课题便是采用电测温度探头和光纤传输相结合的方法,充分利用成熟的电传感技术和光纤耦合的高电压绝缘、抗电磁干扰性能强等优点,设计了单片微机控制下的多路温度巡回检测系统,实现了对电力系统中最常见的电气设备—高压开关触头温度的在线监测。

The company provides the precision electronic switch type: leaf switch,rest switch,tact switch,multi-functional switch,swing switch,slide swtich,micro switch,encoder,push key switch,toggle switch,push switch and Matched with various types of switches each series switch keycap,all type jack:2.5/3.5 phone jack,6.35 jack,DC power jack,usb/hdmi jack,AC power jack,S terminal and so on, the company provides the precision electronic connector type: FFC / FPC flat cable connector, BTOB connector, all kinds of memory card connector: Micro SD, SD, MMC, XD, MS, SM, CF card and a single all-in-one deck, etc., switches Products: Tact Switch, multi-function switch, DIP switch, key switch, button switch series, etc.

公司提供各类高品质电子开关:叶片开关、复位开关、轻触开关、多功能开关、摇头开关、拨动开关、微动开关、编码器、按键开关、按钮开关及与各类开关相配套的开关键帽;插座:2.5/3.5耳机、6.35插座、DC电源插座、USB/HDMI插座、AC电源插座、S端子等;精密电子连接器:FFC/FPC扁平电缆连接器、板对板连接器;记忆卡座:MicroSD、SD、MMC、XD、MS、SM、CF单卡及多合一卡座等。

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推荐网络例句

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊!不用提了。提到肉,真是糟透了。

Tristan, I have nowhere to send this letter and no reason to believe you wish to receive it.

Tristan ,我不知道把这信寄到哪里,也不知道你是否想收到它。