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The stability of aloin decreased with the increase of temperature and heating time. However, the absorbency of aloin did not change with time under room temperature (20℃). The aloin was sensitive to light, and the aloe juice showed a yellowish green sediment in 2 hours after exposed to sunlight. The stability of aloin declined when the pH value arose. The aloe juice was more stable under lower concentration of sodium chloride and sucrose.

结果表明:加热的温度越高,时间越长,芦荟苷的热稳定性越差,而在室温下(20℃)芦荟苷的吸光度基本不随时间改变;芦荟苷具有光敏性,在太阳光照射下,2小时后便出现黄绿色沉淀物;芦荟溶液随着pH的升高,其稳定性下降;低浓度的氯化钠和蔗糖对芦荟汁液稳定性的维持比高浓度的效果明显。

LED or photo aging components: the core of IC optical mouse has a constant internal integrated circuit, the LED constant current of about 50mA, the general use of the mouse high-grade intermittent sampling technique, sent intermittent conduction current is the (sampling frequency of about 5KHz), can be in the same power under the premise of testing to enhance the power LED, the high detection sensitivity.

1发光管或光敏元件老化:光电鼠标的核心IC内部集成有一个恒流电路,将发光管的工作电流恒定在约50mA,高档鼠标一般采用间歇采样技术,送出的电流是间歇导通的(采样频率约5KHz),可以在同样功耗的前提下提高检测时发光管的功率,故检测灵敏度高。

It is characterized by : the mechanical mouse moves and rolling around key operations into switching signals Circuit square with the square wave signal to substitute for the original mouse photosensitive sensors within the pulse signal, using the switch can be achieved mouse cursor movement and the mouse double-click a single operation, and the use of transmitting and receiving circuits instead of the mouse line, a remote-control mouse.

其特征是:将机械鼠标的滚动动作和左右键的作转换成开关信号,用方波电路产生的方波信号代替原鼠标内光敏传感器的脉冲信号,用相应的开关动作可以实现鼠标光标移动和鼠标的单双击作,而用发射和接收电路代替原来的鼠标线,可以实现鼠标的遥控。

At last of the paper, it's studied the relationship between the resistance of the pins of the pincushion 2D PSD and Gear theorem, and find the way to get the boundary resistance and square resistance of sensitive area from the resistance of the pins which can get the position nonlinearity rapidly.

最后,研究了枕型二维PSD的极间电阻与Gear定理之间的关系,可由具体器件的极间电阻确定其单位长度的边界电阻与光敏区方块电阻,从而可以用Gear定理来判别器件的位置线性度,克服了试片法以一概全的缺点。

After light radiation time of one hour,the IC50 of cytotoxicity of C60 liposomes is 154.9 μg/ml.During the concentration of C60 liposomes are 16.86 μg/ml and 33.72 μg/ml separately,the plaque reduction rate of direct virucidal activity to HSV-1F strain is positive correlation to the time of light radiation,the correlation coefficients rate 0.8510(P.005) and 0.9766 (P.005) respectively.

光照1 h,C60脂质体对Vero细胞的细胞毒为154.9 μg/ml.C60脂质体浓度为16.86 μg/ml及33.72 μg/ml时,对HSV-1F株直接杀灭的空斑减数率与光照时间成正相关,相关系数r分别为0.8510(P.005)和0.9766(P.005);当C60脂质体浓度为16.86 μg/ml时,对HSV-1F株感染阻断的空斑减数率与光照时间正相关,相关系数r依次为0.84(P.005)及0.9923(P.005),说明C60的抗病毒作用具有时间效应,主要是光敏动力学机制起作用。

Optimization for the uniformity of the grating using two sensitizing beams from the two opposite sides of the crystals is performed.

提出了采用两束等光强的敏化紫外光由晶体两侧入射的优化方案以改善光栅的均匀性,提高光栅的衍射效率。

The long specific DNA probes were synthesized by polymerase chain reaction in the highly specific gene sequences of above 10 bacteria. The species-specific probes synthesized were inoculated on a nitrocellulose filter and hybridized with template DNA labeled with long-arm photosensitive biotin. The signal of hybridization reaction was observed to detect which bacteria infected. The sensitivity and specificity of the method were studied.

在这10种病原菌高度特异的基因序列内利用聚合酶链反应合成上述10种细菌特异的长链DNA探针,并将合成的特异探针固定在硝酸纤维素膜上,与用长臂光敏生物素标记后的模板DNA进行斑点杂交反应,通过观察杂交信号判断存在何种细菌感染,同时研究该方法的敏感性和特异性。2。

Perhaps the short-day treatment of SD is necessary to the fertility.(2): Compared the 88-428 SD(14.8-15.2h/d) with the 88-428 LD(14.9-15.3h/d), a new isozyme band of Rf=0.19 was found for the first time in the leaves of the 88-428 SD from the branching.

大豆光敏雄性不育材料88-428在出苗后经过连续20天的短光照处理后,与长光照条件下的88-428相比,从分枝期起多了Rf=0.19的酶带,特别值得指出的是Rf=0.19的酶带在以后的发育时期内一直存在,说明经过短光照的诱导以后产生了新的物质,而且这种物质可以在细胞间运输,影响到植株的生殖生长。

Previous studies have established that the sterility of Nongken 58S is controlled by one or two loci, depending on the genetic backgrounds of the material used in the crosses, and the locus located on rice chromosome 12 designated pms3 is the one at which the original...

此前的研究发现,根据杂交组合中材料遗传背景的不同,农垦58S的不育性受到1个或2个位点的控制,位于第12染色体上的pms3位点是导致正常水稻品种农垦58突变为光敏雄性不育水稻农垦58S的根源。

He respected the knowledge and opinions of other PTG greats such as Owen Jorgensen RPT and Jim Coleman, Sr. RPT who contributed to the capabilities his device and all other devices and software have today.

他尊重知识和意见的其他光敏热成像伟人,如欧文约根森快速成形技术和吉姆科尔曼,快速成形技术谁老作出贡献的能力他的设备和所有其他设备和软件的今天。

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This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。

There is no differences of cell proliferation vitality between labeled and unlabeled NSCs.

双标记神经干细胞的增殖、分化活力与未标记神经干细胞相比无改变。