查询词典 experimental research

For this reason, an optimal automatic timing control algorithm is proposed, that can restrain the switching frequency in a certain range to achieve the purpose of high efficiency and energy conservation. Taking such factors as inductive reactance at AC side, switching frequency, harmonic distortion rate and switching loss as well as the interaction among them into consideration, the formulas for inductive reactance and switching frequency are given; then by use of digital signal processor TMS320F2812, a prototype based on the proposed algorithm is implemented, and using this prototype the effectiveness and practicality of the proposed method are verified by experimental research and simulation.

文章提出了自动定时控制的优化算法，将开关频率限定在一定范围内，以达到高效节能的目的；综合考虑交流侧感抗、开关频率、谐波畸变率和开关损耗等指标，提出了主电路电感参数和开关频率的选择公式，并采用TMS320F2812数字信号处理器构造了试验样机，进行仿真和试验研究，其结果证明了该方法的有效性和实用性。

The experimental research on the lateral resistance system steel frame structure with sandwich-type infilling wall has been completed.

试验研究和理论分析表明，钢框架结构抗侧刚度较低，空腔砌块复合墙体能显著的提高钢框架的抗侧刚度，两者能很好地协同工作，成为钢结构住宅有效的抗侧力体系。

An experimental research on the mechanical indexes, swelling-shrinkage properties and pore size distributions of intact Guangxi laterite at different stages of dehydration, has been carried out systematically.

对广西原状红粘土的力学指标、胀缩特性与孔径分布随脱湿过程的演化规律进行了较为系统的室内试验研究。

An experimental research is made on the characteristics of field-dependence and field-independence of cognitive styles relating to students of libera arts and science,physical education majors and professional sportsmen by means of inlaid graphic test.

运用镶嵌图形测验的方法，对大学文、理科学生，体育专业学生和专业运动员进行认知方式的场依存性—独立性特征的实验研究。

Then, we do experimental research on the single frequency and linewidth narrowing of fiber ultra-short linear cavity laser.

其次，我们在第二章理论分析的基础上，对单频单偏振环形腔窄线宽光纤激光器进行了实验研究。

Energy and power engineering ; liquefied petroleum gas ; experimental research ; gasoline engine ; emission

能源与动力工程；石油液化气；试验研究；发动机；排放

Road engineering ; asphalt stabilized macadam base ; experimental research ; gradation design ; five control sieve design method

道路工程；沥青稳定碎石基层；试验研究；级配设计；五控制点级配设计方法

Numerical simulation and experimental research show that, when air flows over the surface of the truck, around the head of it there exists a positive pressure area which is a main contributor to the pressure-difference drag of the truck.

通过数值模拟和试验研究表明，气流在绕流汽车表面时，在汽车头部存在压强较大的正压区，该区是对汽车压差阻力贡献较大的区域。

This result can establish a foundation for animal experimental research of gene therapy of malignancy.

该研究为基因治疗恶性肿瘤的在体实验奠定了基础。

Theoretical and experimental research of 100 kA microsecond conduction time plasma erosion opening switch.

陈林。100 kA微秒导通时间等离子体融蚀断路开关理论和实验研究。

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。