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The performance of the energy-saving lamp in the market has some disadvantages generally,such as low light efficiency,uneven illumintation and high-glare lighting.For this point,a high uniform and low glare LED eye protection lamp is designed.This design joined the aspheric reflector cup lampshade to collect a large angle of light emitted by the LED light source,which raised the light energy utilization and improved glare.This design added the light distribution lens to eliminate the center bright spots which exist in receiving plane and solve the illumination problem.Finally,the entity modeling was carried out by ProE 3D and imported into the TracePro light simulation software.The simulative analysis results show that the design of this LED lamp can realise low glare and can be more uniform illumination within the receiving plane,which with working distance of 450 mm and diameter of 700 mm,it allows up to 497.1 lx of average illumination,and the evenness can reach up to about 0.9.In the rapid development of LED lighting products,this kind of high uniformity and low glare LED eye protection table lamp design scheme has wide and bright practical and applicative prospect.

In order to improve the production efficiency,surface quality and reduce the grinding margins of Polycrystalline Diamond(PCD) compact cutting tools,a series of experiments of Low-speed Wire Cutting Electric Discharge Machining(LS-WEDM) for a PCD compact were taken.The PCD compact was cut by the WEDM for five times,then the surface roughness of cutting section,the machining quality of cobalt-rich interface layer and the edge of PCD layer were measured and discussed.The results indicate that the PCD compact shows better surface quality in its cutting section after multiple processing by LS-WEDM,and the machining quality is affected by diamond particle sizes greatly.For two kinds of PCD compacts,CTH025 and CTB010,the surface roughness are Ra=0.85 μm and Ra=0.57 μm,and the depths of the grooves of cobalt-rich interface layer are 16.3 μm and 5.7 μm,respectively.The size of the defect in the edge of PCD compact is matched with that of the diamond particle.The minimum grinding margins of PCD cutting tools can be controlled in 4-15 μm after LS-WEDM.

Gold nanostructured microtubes (AuNMTs) are prepared using a tertiary amine group-functionalized polyethylene (PE)-coated polypropylene (PP) nonwoven fabric as a ligand, a reductant, and a template, which takes advantage of the different radiation effects of PE and PP. The Au(III) ions are absorbed and reduced only in the PE layer to form the aggregation of gold nanoparticles; thus, AuNMTs are obtained after the calcination.