For manufacturing , the designing of logistics network structure is very effective for enhance enterprise logistics system efficiency , and it decides efficiency of enterprise logistics department and logistics system , and , to certain extent , it reflects competitive competence and compositive management level of enterprise 对制造企业来说,物流网络结构的设计对于提高企业物流系统的运作效率非常有效,它直接决定了企业物流系统的效率和其优劣,在一定程度上也反映了企业的市场竞争能力与综合管理水平。
At the same time , it analyzes the influencing factors . secondly , because the exist of the fuzzy and uncertain characters of the system factors and the factors which influencing the system efficiency and ability , this research calculates the efficiency and ability of the whole system with the fuzzy decision - making theory which basing on fuzzy mathematic 然后,考虑系统因素及影响系统效能因素的模糊性和不确定性的存在,本研究采用了基于模糊数学的模糊决策理论对整个系统的效能进行计算;并运用随机服务过程理论和模拟方法,对系统进行了效能分析和优化。
Some studies on control modes of the system , especially on a dc , pm , brushless and sensor - less motor driven systems . a method of rotor position identification without sensors has been developed . using a microchip to increate system efficiency , anti - disturbing ability and reliability of pwm modulation 研究了适于直流、无刷、永磁、无位置传感器电机转子位置的检测方法;采用单片机实现了该种电机的运行控制,提高了系统在pwm调制时位置检测换相控制过程的抗干扰能力。