微球体

This paper first analyses the stress acting on the cable by means of tiny segment analytical methods, establishes cable's stress equation, and finds out the relation between the tethered aerostat's position and its stress acting by cable; then, based on the momentum and moment of momentum theorem, the longitudinal nonlinear dynamic equation is established; Finally a numerical simulation of dynamic responses of the balloon and cable to gust are carried out.

本文首先通过微段分析法对缆绳进行受力分析，建立缆绳的受力方程，找出了系留气球在空中的位置同系留气球所受缆绳拉力的关系；然后根据动量和动量矩定理建立了球体的纵向非线性运动方程；最后通过数值仿真计算，对系留气球的纵向动态响应特性进行了分析。

The operating element can be fixed to surface of said ball by miniature clamper.

在球体(1)的表面上固定微夹持器(4)等操作元件就能完成许多微操作。

The differential equations of the system formed by a homogeneous cylinder and a non-fixed inner semicylindrical surface arc derived.

均质圆柱体或球体在固定半圆形柱面内的微振动问题常常出现在一些理论力学教材[1—3]中。

RESULTS: The diameter of the microsphere was under 20 μm. Scanning electron microscope demonstrated that Fe3O4 and berberine were compounded by gel into a round shape, and the mixture was expressed on micrometer.

结果：磁性药物微球的颗粒直径在20 μm以下，通过扫描电镜可以看出，Fe3O4粒子和小檗碱已经被明胶复合成堆积状的球体，达到微米级。

Results CLG microspheres were uniform spheroids with small pores on surface and sporadically dispersed without conglutination.

结果交联明胶微球呈分散良好的均匀球体，表面可见孔道散在分布。

Longer pre-culture times for the spheroids resulted in slower fusion, less coherence and increased length of rod microtissues.

对球体更长的预培养时间导致了融合速度减慢，粘附减少以及柱状微组织长度的增加。

Microspheres after foam shell will not break down, is still sealed to maintain a complete sphere.

发泡后的微球外壳并不会破裂，仍保持一个完整的密封球体。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。