木质素功能化在新材料生产中的应用

木质素是木质纤维生物质的主要组分,是生成腐植酸的主要物质,也是芳香族分子最大的天然来源,因此是一种有吸引力的可再生化工生产原料。将分离的木质素直接掺入材料中,因其想法的简单性和方案潜在的高原子经济性,长期以来一直被研究。然而,由于其高化学反应性,木质素在不经过控制的缩合和再聚合的情况下很难分离出来,这极大地阻碍了它与聚合物和其他材料的结合。因此,可控化学改性已经或正在开发中,以提高木质素与现有材料的相容性。本文综述了木质素提取和功能化的最新进展及其在提高木质素基材料生产方面的潜力。     

AMD Duron全集

AMD Duron CPU早在雷鸟发布前一个月就出现了,但是由于当时Socket A主板的缺乏,一直等到雷鸟CPU出来这后,大量Socket A主板推出,我们才了解到其性能,AMD Duron CPU与AMD Athlon和雷鸟的内核大致相同,它的L1 CACHE为128KB,12CACHE为64KB,外频为100MHz,它们都具有相同的FPU,相同的指令集,不同的是缓存,Duron的目标是低端市场,它具有0.18微米的制程和与雷鸟相同的超频性能。     

Research on resonance parameters matching based on partitioned operation method of atmospheric pressure plasma reactor array

Matching optimization of resonant parameters among the high power inverters, low power transformers and plasma reactors have significant effects on the performance and output of the reactor array when applying the partitioned operation method. In this paper, the Matlab/ Simulink electrical model was established based on the method of partitioned operation. The matching relation between resonant parameters is analyzed on the basis of experimental result. As a consequence, transformer leakage inductance and working frequency are the important parameters influencing the operational efficiency of system, leakage inductance of transformer should be adjusted based on the equivalent capacitance of plasma reactor to realize the matching optimization of resonant parameters.