查询词典 complete linear system

Urban Remnant Natural Area is left behind in the urban planning area along with urbanization. Its landscape assessment is significant for urban natural preservation. On the basis of URNA's characteristics and in line of the domestic actual situation, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis. This method is also revised during the application process.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立2者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

On the basis of URNA's characteristics, psychophysical method, one of the most scientific and credible methods, is chosen to establish the complete landscape assessment system, including acquiring scenic beauty value by SBE method, dividing into different influencing factors by SD method, and setting up their connection model by multiple linear regression analysis.

城市自然遗留地是随着城市化的进程在城市规划区内遗留下来的的用地，根据城市自然遗留地城市性、自然性和遗留性的特点，结合国内的实际情况，运用目前最严格、可靠性最好的心理物理学方法，以相片为测试材料，采用SBE法获得美景度量值，SD法测定各景观要素量值，以及多元线性回归方法建立两者的关系模型，最终提出了城市自然遗留地景观美学评价完整的方法体系，并修正和完善了心理物理学方法在城市自然遗留地领域的具体应用。

Finally, based on the studies above, the characteristics of pantograph/catenary are analyzed and the active pantograph is modeled. By using the linear quadratic optimal control law, the design objective is to minimize the performance index, which is a function of the state variables representing the pantographs dynamic characteristic and the active control force. The control system is designed considering the complete state feedback.

最后，在此基础上，分析了受电弓／接触网系统的工作特点，建立了受电弓主动控制系统的数学模型，利用线性二次型最优控制策略，以给定性能指标为最小值为设计目标，性能指标为表征受电弓动力学特性的状态变量和主动控制力的函数，考虑了完全状态反馈的情况，进行了控制系统的设计。

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。