浅谈光缆生产中的吹干方式与能效利用

针对光缆生产中对光纤套管、填充绳及护套生产工序频繁使用的吹干工艺要求，大流量的压缩空气在能效不充分的利用中流失问题，探讨对吹干器的工作原理和改进方案，以及生产中的效果和能耗的控制。     

薯秧倒栽增产

笔者在同等条件下试验对比薯秧倒栽比顺栽可提高产量1倍以上。倒栽的薯苗比顺栽的生长缓慢．约需7天时间叶腋间长出新芽，以后慢慢形成主茎，由于茎中输导组织输送根部吸收的水分及有机养料的方向逆转．其输送速度减慢．     

“兄”联手，网路狂飙

虽然很多人已经告别了“56K小猫”时代，装上了ADSL宽带；虽然现在的网速已经是原来几十倍、几百倍，但人们还总是不满足，还希望网速能在现有的基础上再提高一步，此时网络加速软件就应运而生了，今天给诸位介绍的这两“兄弟”就是能让我们的网速提高的好软件。     

Spin Dependent Hopping in Ti Doped La0.67 Ca0.33 MnO3

A systematic investigation of the magnetic and transport properties of Ti doped La0.67Ca0.33MnO3 was reported. The Ti substitution for Mn ions results in a reduction in ferromagnetism and conductivity. The metal-insulator transition temperature is close to Curie temperature which decreases from 274 to 82 K as x increases from 0 to 0.17. The most important effect of Ti doping is to introduce spin clusters in the samples due to the distortion of local lattice and the inhomogeneous magnetic structure induced primarily by the random distribution of Mn ions. A maximum magnetoresistance ratio as large as 90% in 1 T at 122 K was obtained for the sample with x =0. 055, which is four times larger than that obtained for LCMO sample at 272 K. There is a remarkable field-history dependent MR in the cooling process for the doped samples while such phenomenon disappears in the warming run. The resistivity follows well the variable range hopping behavior in paramagnetic state. Both the size effect and spin dependent hopping of carriers between the spin clusters should be considered in this system.     

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应用Matlab对柴油机示功图修正方法的研究

在Matlab环境下对试验测取的示功图进行了修正处理，包括消除通道效应、上止点修正及压力的标定，并根据修正前后的示功图计算了放热率，计算结果表明所用修正方法是合理的．     

基于PSR模型的水电工程生态效应评价指标体系构想

从水电工程生态效应评价指标体系研究的意义出发,通过分析水电工程生态效应评价的内涵,确立了评价指标的选取原则,基于压力(Pressure)-状态(State)-响应(Response)概念模型,构建了以科学、实用和可操作为目标的评价指标体系的框架。     

深圳IC设计业需要借助群聚效应

商业化运营模式促进产业创新，一度成为深圳地区IC设计业的活力源泉。不过，在经历繁荣创业之后，本土企业的进一步发展需要整个成熟产业环境的支持，小而散的灵活性并不能支撑一个区域产业的长久竞争，长三角半导体产业的发展已经证明群聚效应带来的综合竞争力是1加1远大于2。