With the rapid development of integrated circuits, its lead frame is increasingly high precision, which puts forward higher requirements for current research status and key technologies. In this paper, innovations structure control complex alloying, deformation, heat treatment high-precision frames manufactured by etching are reviewed. The relevant industrial chain at home abroad situation intr...

In this paper, in view of the problem low early and late strength dry-mixed mortar prepared by cement-fly ash-slag powder composite cementing system, ratio mixing fly ash slag to replace cement is 70%. To study effect desulfurization gypsum (FGD) on improving activity system. The results show that adding desulfurized gypsum, which accounts for 6% 8% total mass cementitious material, has no adve...

Purpose: This article aims to assess strategy and technology as key drivers of Greek businesses’cdigital transformation compare the results those international studies sources. Methodology: A research was conducted on 124 businesses from different sectors industries with use an anonymous questionnaire December 2019 January 2020. were categorized early, developing, maturing according their perce...

With the large-scale commercialization of 5th generation (5G) network globally, 5G together with artificial intelligence (AI), cloud and big data is accelerating digitalization world, which push society move towards a "digital twin" world composed physical its digital mirror. The twin will enable us to predict future reshape in social governance many industries. ubiquitous intelligent connectio...

Abstract 3D printing technology as the advanced has developed rapidly in recent years. In order to study problem of design and manufacture gun complex components, applications muzzle brake with a high efficiency low impact are special interest. This paper studied number key technologies components based on printing, focusing discussion model design, mold direction support structure layered slic...