【摘 要】
：
纤维的断裂和折钩在纺纱中会发生,属纤维长度损伤,其准确表达对发现加工失误,提高梳理效果意义重大.现有的长度特征值表达在精度、灵敏和针对性上均较差.本实验和理论分析证
【机 构】
：
东华大学纺织学院,武汉科技学院纺织与材料学院,上海海关高等专科学校经济系
论文部分内容阅读
纤维的断裂和折钩在纺纱中会发生,属纤维长度损伤,其准确表达对发现加工失误,提高梳理效果意义重大.现有的长度特征值表达在精度、灵敏和针对性上均较差.本实验和理论分析证明,基于纤维根数加权长度分布的面积差计算,可有效、定量地给出成纱中纤维的显性损伤（断裂）和隐性损伤（折钩）.其中,从毛条到粗纱各工序的纤维断裂百分率为1%~7%,全过程总和达27%,若能使各道断裂百分率小于2%,则显性损伤可减少近80%;对隐性损伤的消除能力有限,最好才达7%,若能使折钩率降低一半,则意味着粗短纤维减少10%.这是有效利用纤维、
其他文献
The microstructure of selected specimens in the (Y,Ce)-TZP-Al2O3 composite systems was studied. The investigation techniques used in this work included X-ray di
The present paper covers an X-ray photoelectron spectroscopic (XPS) method proposed for identifying Bronsted and Lewis acidic sites in zeolites and estimating a
The title compound C18 H25 NC4ClBr2Cu crystallizes in space group P 1 with a = 1.0105(2)nm b=1.0821(1) nm, c=1. 1007(2) nm, a=80. 00(1)°,β=80. 26(1)°
A novel zeolite, denoted as CJS-4, has been synthesized from nonalkaline medium by using 4,4’-trimethylenebis(1-methylpiperidine) or 1,4-diazoniabicyclo(2,2,2)
自1999年12月以来,笔者对102例病毒性肝炎患者进行了血清总胆汁酸测定,现将检测结果分析报道如下.
短波超短波在通信中占据重要地位,是唯一不会受到网络枢纽影响的通信系统。一般情况下,基础通信设施不会出现重大问题,但是一旦发生损坏将会造成严重影响,导致指挥机关难以有
An aluminium-substituted framework gallophosphate with occluded triethylamine was synthesized hydrothermally. 27Al MAS NMR spectroscopy indicates that only the
一、概述1、马拉松转播特点基于马拉松赛事的特点,信号传输则成了马拉松赛事转播的重中之重。目前的马拉松比赛主要利用微波、光纤、4G等几种技术将拍摄的画面传输到转播车。
Zeolite [B,Al, Ga, Fe]-ZSM-5, containing several heteroatoms, was synthesized for the first time under. hydrothermal conditions. Characterization of the sample
Heteroatom M-ZSM-12 zeolites(M=B, Al, Ge, Ga, Fe) are hydrothermally synthesized and it is proved that the heteroatom M is involved in the framework of synthesi