今后十几年间,我国企业管理人才梯队结构问题初探     

何士滨  田行一  张锁明  秦英杰 《成人教育》1983,(4)

<正> 几年来,在向“四化”目标艰难起飞的过程中,我们感到一个突出的困难,即各类人才的短缺,其中尤以管理人才的短缺为甚。为此,我们试就今后十几年间我国企业管理人才的梯队结构问题做一初步探讨。  相似文献   

论民航空中交通管理设备运行管理     

秦英杰 《中国科技纵横》2014,(21):255-255

本文主要对我国民航设备安全管理现状进行了科学的研究和分析,并为减少系统差错和人为差错,建立合理的民航空管设备安全管理体系,提高设备的安全保障水平提出了建议和意见。  相似文献   

Enrichment of semi-volatile organic acids from aqueous solutions by multiple-effect membrane distillation   总被引：1，自引：0，他引：1  

班睿  刘苗苗  秦英杰  王焕  崔东胜 《天津大学学报(英文版)》2012,18(5):320-329

Multiple-effect membrane distillation(MEMD) process for enriching semi-volatile organic acids from their individual aqueous solutions was performed by using a hollow fiber-based air gap membrane distillation(AGMD)module with the function of internal heat recovery.Aqueous solutions of glyoxylic acid,glycolic acid,lactic acid,pyruvic acid,malonic acid and glutaric acid were used as model feed.For a feed of 1%(mass fraction),each acid could be enriched for 8-20 times,which depended on the surface tension of the concentrate.The operation performance of MEMD process was characterized by permeation flux J,performance ratio PR and acid rejection rate R.The effects of cold feed-in temperature,heated feed-in temperature,feed-in volumetric flow rate and feed-in concentration on MEMD performance were experimentally evaluated.Maximum values of J,PR and R were 4.8 L/(h·m 2),9.84 and 99.93%,respectively.Moreover,MEMD process demonstrated a fairly good stability in a long-term experiment lasting for 30 d when aqueous solution of 4%(mass fraction) lactic acid was used as a feed.  相似文献