Research on A Master - slave Multi - microcomputers Control System for Hollow Spindle Fancy Yarn Spinning Machine

In this paper, a successfully studied and developed master - slave muld - microcomputers control system based on PC - BUS for hollow spindle fancy yarn spinning machine, mainly Its overall scheme, software and hardware construction, is introduced. Spinning experiments show that the system achieves satisfactory result. This system can solve the diftkultles of mechatronical fusion between domestic hollow splndk fancy yarn spuming muchine and its microcomputer control technology.     

高硬度丁腈纺织胶轮的研制

介绍一种丁腈纺织胶轮的配方设计扣生产工艺。     

Theoretical Study of the Peripheral Twist Extent Length in Rotor Spinning

The mathematical model of peripheral twist extent(PTE) length was set up by studying the kinematics anddynamics of the yarn in rotor groove. The value of PTElength was calculated by using numerical method, andthe factors affecting the PTE length were also discussed.The results show that the theoretical predicted value ofPTE length seems to be consistent with the measured val-ue. The yarn linear density and rotor speed have re-markable effects on PTE length. The parameters includ-     

试论投篮中旋转球的运用

从物理学和生物力学的角度,对篮球运动中不同情况下球的旋转问题进行分析和阐述。得出结论：球在空气中旋转,旋转轴具有稳定性。旨在为教学、训练和比赛提供一定的参考依据。     

棉型干法腈纶纺丝油剂抱合性的研究

从纤维性质、油剂单体、纤维含油量和含油纤维的摩擦特性等方面对棉型干法腈纶纺丝油剂抱合性进行了研究,并进行了工业化试验.     

转杯纺杯内纱段剥离点张力的分析

采用功能原理的方法分析转杯纺的杯内自由纱段,对该纱段剥离点张力进行了研究,并讨论了影响剥离点张力的主要因素.     

自旋与轨道角动量绕_j旋进角速度的计算

借助于自旋———轨道耦合引起的附加能量ΔEls以及碱金属精细结构裂距Δ ν的实验值 ,通过推导和计算 ,给出了单电子原子“快旋进”角速度的表达式 .     

质量矩控制导弹的建模与仿真研究

针对质量矩控制问题，建立了导弹的六自由度动力学数学模型，给出了移动质量块运动过程中施加给弹体力和力矩的计算公式。在MATLAB6．5／Simulink环境下，设计开发了六自由度导弹仿真系统，并且针对三轴稳定弹头和自旋弹头进行数值仿真，仿真结果验证了质量矩控制的有效性。     

纺丝用聚氨酯浆液的研究

采用湿法溶液纺丝工艺,考察原材料种类及配比对聚氨酯浆液性能的影响,并对聚氨酯浆液的制备工艺及相应的纺丝工艺进行了研究.     

转杯纺纱与环锭纺纱毛羽的比较及成因分析

本文对转杯纺纱与环锭纺纱的毛羽进行了测定与比较。并对其毛羽的产生与成纱机理的关系做了初步分析。