Quang Ninh area

Xem 1-5 trên 5 kết quả Quang Ninh area

Summary of PhD thesis Mechanics gynamics engineering: Study on the effects of some factors on longevity of cutting teeth on the drum of shearer used in underground coal mining in Quang Ninh area

Studying, analyzing and evaluating the basic factors affecting the wear resistance of the shear cutting drum, such as coal strength, the geometry of the cutting teeth, materials of cutting teeth, the cutting angle. Cutting depth, cutting feed and cutting speed are the basis for selecting the appropriate factors in fabrication, using the cutting teeth of the shearer.

27p closefriend09 16-11-2021 25 2 Download

Thesis Abtract: Solutions to restrict trawl fishing activities in the coastal areas of Van Don district in Quang Ninh province

The goal of the Thesis: Investigate the current status of the trawl fishing, evaluate the invasive level of the trawlers to the fisheries resources and propose solutions to limit the fishing activities to protect the fisheries resources in the coastal areas of Van Don district, Quang Ninh province.

24p tunelove 11-06-2021 15 4 Download

Summary of thesis Human resources management: Social welfare for employees in enterprises at Quang Yen commune, Quang Ninh province

Analysis of the current social welfare situation for employees in enterprises in Quang Yen commune, Quang Ninh province. On that basis, analyze the results achieved, the limitations and the causes of the limitations to propose solutions to enhance the welfare system for employees in the study area.

31p trinhthamhodang1217 14-01-2021 20 4 Download
Summary of Doctor thesis: Research on improving economic - Technical efficiency of prop equipment using in underground coal mining in Quang Ninh area

Building basis of science and reality for economic - technical efficiency of PE using solutions in CM in Quang Ninh area, to make contribution to increase efficiency of coal production and coal business.

27p cothumenhmong6 17-07-2020 38 4 Download
LAN là gì

LAN là một mạng cục bộ ( Viết tắt của Local Area Network ), được định nghĩa là tất cả các máy tính trong cùng một miền quảng bá ( Broadcast domain ). Cần nhớ rằng các router ( Bộ định tuyến ) chặn bản tin quảng bá, trong khi Switch ( Bộ chuyển mạch ) chỉ chuyển tiếp chúng. VLAN là gì ? Như đã giới thiệu phía trên, VLAN là một mạng LAN ảo. Về mặt kỹ thuật, VLAN là một miền quảng bá được tạo bởi các Switch. Bình thường thì Router đóng vai trò tạo ra miền quảng bá. Đối với VLAN, Switch...

3p hoangtuxuan 05-10-2011 847 27 Download