论文部分内容阅读
LED道路照明高信赖性重要技术指标
【出 处】
：
照明工程学报
【发表日期】
：
2009年S1期
其他文献
Effect of optimal aging treatment on magnetic performance and mechanical properties of sintered Nd-F
The magnetic performance and mechanical properties including hardness, brittleness, fracture toughness and strength characteristics of the as-sintered and the o
A titanium alloy containing continuous oxygen gradient was prepared by powder metallurgy (P/M) and the composition–property relationship was studied on a singl
Solid-state wave gyroscope is one kind of high-performance vibrating gyroscopes. The present work develops a new type of solid-state wave gyroscope—a ring vibr
当前,我国北方城市中普遍引进种植冷季型草坪,这种草坪绿色期长、质地细腻,但养护费用高,特别是需水量多,而我国北方城市普遍缺
At present, cold-season turf is commonly
In order to investigate the seismic performance of geosynthetic reinforced and pile supported (GRPS) embankment under seismic loads, an input method for three-d
Tooth surface geometry optimization of spiral bevel and hypoid gears generated by duplex helical met
In order to effectively improve meshing performance of spiral bevel and hypoid gears generated by the duplex helical method, the effects of straight lined and c
The theoretical model of axial ultrasonic vibration grinding force is built on the basis of a mathematical model of cutting deforming force deduced from the ass
A bottom-up method for module-based product platform development through mapping, clustering and mat
Designing product platform could be an effective and efficient solution for manufacturing firms. Product platforms enable firms to provide increased product var