Characteristics of growth and limitations in electronics

Since its origin about 75 years ago, electronics has grown faster than any other major engineering discipline. Analysis of the essential characteristics of electronics leads to the conclusion that the normal growth-limiting mechanisms are not operative in this area. The commitment of electronics to information handling is stipulated and it is concluded that electronic information processing is a new milestone in a field that is vital for human survival and that is as old as mankind. Though growth in electronics is open-ended, as in other engineering branches, developments within the field are subject to recognizable constraints. These constraints are identified and classified. Most of them turn out to be relative and sliding with the progress of time. The consequences of changing patterns of constraints are illustrated on past developments and their possible impact on future trends is brought forward.     

Interaction based market segmentation

Purpose of this article is to evaluate the significance of market segmentation in situations of selling complex industrial products. The notion of “interaction based segmentation” is developed in this study.     

江苏条子泥水域水沙特性分析

采用实测资料分析和数学模型相结合的方法,研究江苏条子泥水域水沙特征.研究结果表明:江苏条子泥水域泥沙运动极大可能存在两种形式的泥沙运动,一种是颗粒较细的泥沙,在潮流和波浪等作用下,通常悬浮于水中;另一种是颗粒较粗的泥沙,在强大的涨潮流作用下,以悬移质和推移质形式向辐射沙脊群中心运动.涨潮时西大港由北向南运动的水流在部分时间内较为强劲,并且流线弯曲,易引起冲刷,应加强条子泥一期东侧堤部分堤段的保护.