Objective: To explore the effect of interspace diffuse resistance and carrier's electrical property on immobilized chitosanase's kinetic property.
目的通过壳聚糖酶固定化前后最适宜的反应温度、pH值、米氏常数等动力学性质的变化研究载体电荷极性、空间阻力对壳聚糖酶动力学性质的影响。
Researched the proportions of MAS、PEO、AA on the fluidity of cement and the gradual loss to determine the dispersing mechanism mainly are electyostatic repulsion force,steric stability,there also is slow release of macromelocule.
在合成聚羧酸系高效减水剂时,不同单体MAS、PEO、AA的加入量对减水剂的性能有不同的影响,主要是由于各个功能单体对水泥颗粒的分散机理不同,通过研究MAS、PEO、AA的加入量对水泥净浆流动度的影响,从而确立了其在水泥中的作用机理主要是静电斥力,空间位阻,此外还有反应性高分子缓慢释放理论,这对于指导聚羧酸系高效减水剂的合成具有很大的参考价值。
Dynamic NMR study on steric hindrance of Na_4-CyDTA;
Na_4-CyDTA空间位阻的动态核磁共振研究
The controlling mechanism had been discussed and could be ascribed to steric hindrance induced by binding of neutravidin to the linked biotin.
在这项研究中 ,利用固相肽合成方法合成了连接生物素的缓激肽 ,Biotin Arg1 Pro2 Pro3 Gly4 Phe5 Ser6 Pro7 Phe8 Arg9 OH ,通过对其生物活性的研究发现 :a 它能保持象天然的缓激肽那样的生物活性 ;b 由于中性抗生物素蛋白与连接的生物素的结合引起的空间位阻阻碍它与细胞表面受体的相互作用 ,从而抑制了它的生物活性 ;c 在有自由的生物素存在的条件下 ,自由生物素与连接生物素与中性抗生物素蛋白的竞争结合 ,能够使得与中性抗生物素蛋白结合的连接生物素的缓激肽从抗生物素蛋白上脱离 ,因而恢复其生物活性 。
The calculated results also show that the relative stability of conformations are directly correlated to aromaticity, but aromaticity is not the only determining factor which affects the relative stability of conformations;while in the porphyrazine systems with smaller central holes,the steric hindrance and the electrostatic interaction are more important factors which should not be neglected.
计算结果表明,芳香性与各体系构象稳定性密切相关,但并不是决定构象稳定性的唯一因素;在中心空穴较小的紫菜嗪体系中,空间位阻,静电作用才是影响构象稳定性的关键因素。
Kodak Company describe the use of a solvent-stabilizer system comprising a class of sterically hindered phenols acting both as coupler solvent and stabilizer.
柯达叙述了一类含有空间位阻酚类作为成色剂和稳定剂。
Effect of Spatial Hindrance on Photochromic Behavior of Copolymer Starch and Azo-Dyes
空间位阻对淀粉偶氮染料共聚物的光致变色行为研究
Electronic and steric effect on the oxidation of phosphines as potential antioxidant for future jet fuel
电位效应与空间位阻效应对飞机燃油抗氧剂膦化物的氧化反应的影响
steric exclusion chromatography
空间排阻色谱(法)
an empty glass; an empty room; full of empty seats; empty hours.
空杯子；空房间；满是空位子；空闲的时间。
This distributor use small space. has more distribute hole, little gas resistance, low pressure drop, wide operation flexibility.
该气液分布器空间占位更低，气体通道开孔率更大，气流阻力小，压降低，操作弹性范围大。
Using the boundary element method (BEM) to solve the BIE, one can get the voltage distribution on and under the ground and calculate the apparent resistivity.
用边界单元法求解该方程可以得出空间电位分布，从而进行视电阻率模拟。
the disturbances caused by joint gap, friction,or internal impact within limited distance, gravity and aerodynamic drag are discussed.
还对连接间隙、摩擦、限位内碰撞、预应力、重力场及空气阻力的干扰进行分析；
Ball-Covering Property of Banach Space and Quotient Space;
Banach空间及商空间的单位球面覆盖性质
Q_k Spaces and Bloch-type Spaces on the Unit Ball of C～n;
C～n中单位球上的Q_k空间和Bloch型空间
a vacant situation, post, hotel room
空着的职务、 空缺的职位、 旅店的空房间.
Yet the physical distance did not stop the contact of minds.
然而,空间的阻隔,无碍思想的沟通。
Research on attrition loss of prestress wire with space curve
空间曲线预应力束摩阻损失试验研究
The close spacing of the theater seats.
剧院里空间很小的座位
a movement through space that changes the location of something.
事物空间位置的移动。
the shortest distance between two points is a straight line.
空间两条直线的位置。
optical spatial phase modulator
光学的空间相位调制器
Toeplitz products on the Bergman space of the unit ball
单位球Bergman空间上的Toeplitz积