人体满意度和服装适体满意度

对消费者来说,服装适体的不满意,一个最显著的原因是服装不适合人体。可是,消费者对成衣适体的满意或不满意能超越服装的本身范围,如社会流行看法对消费者的暗示。     

应用核示踪物评价洗矿槽回收金的效果

在保证非常高的总砂金回率的情况下，洗矿槽能得到比其它重力选矿机高得多的富集比。洗矿槽工作可靠，价格便宜，操作简便，这就是为什么这种洗矿槽目前难以舍弃，并仍然是加拿大育突河地区最重要的砂金选矿设备的原因。     

利用梯度场磁共振测井的地层评价结果修改SP确定Rw

新的核磁共振测井测量地层可动流体孔隙度、指示含烃体积和类型以及与它们相关的阳离子交换量，这提高了应用测井资料确定冲洗带和原状地层含水饱和度的质量。     

SIMILARITY LAW OF FLUCTUATING PRESSURE WITHIN HYDRAULIC JUMP AREA

Through a series of model tests of five scales for 2-D free hydraulic jump, the da-ta of fluctuating pressure acting on the floor level within the hydraulic jump were obtained. Dur-ing the experiments, Froude number varied from 2.94 to 8.61, and Reynolds number rangedfrom 2×10~4 to 6×10~5. Experiment results indicate that the amplitude scale of fluctuating pres-sure is the length scale of model, i. e. P'=L, which agrees with gravity similarity law: Thefrequency scale of the fluctuating pressure is a unity i. e., f=1, which does not satisfy thegravity similarity law.     

THE FLOW PRODUCED IN PARTICLE-SUSPENSION BY AN INFINITE ROTATING DISK:SERIES SOLUTION

To the flow produced in particle-suspension by a rotating disk of infinite extent,the asymptotic behavior at infinity is analyzed.A corresponding series solution is presented.It isshown that this approach yields widely valid solutions of high accuracy for all the cases in whichthat suction or weak injection at the disk surface exists.For the cases that strong injection or par-ticle-free band exists,the series method fails.     

TURBULENCE MEASUREMENT INSTRUMENT WITH A SILICON PIEZORE-SISTANCE BEAM

A newly developed turbulence measurement instrument is introduced in the paper.The transducer of the device is based on the principle of the effect of silicon piezoresistance that isintegrated in a Wheatstone bridge on a pure silicon beam. At one end of the beam, a small lightball is installed as the target forced by the water flow. The other parts are prevented from thewater flow with a sophisticated stainless steel tube. The instrument can be used to measure turbu-lent velocities either in clear Water or in flows bearing hyperconcentration of sediment. It can al-so be used to measure velocities in both glass flume and model experiments as well as in pipe ex-periment by being mounted in a special way.     

提高动力问题直接积分法的精度

一、概述在结构动力分析中,广泛采用直接积分法求解时域内的运动方程。主要的方法分两类。第一类为显式方法。即将加速度和速度用连续的位移值表示,在运动方程中,加速度和速度被每一时间步长内所要求出的位移矢量所代替。这类方法的主要区别在于有各种不同的假定,它们的—个主要缺陷就是它们是条件稳定的。事实上可以说明所选时间步长增量必须远