wholly-controlled by the Title Holder, Empresa Minera Villegas S.R.L. and is located 48 km north of Tupiza city, in the Sud Chichas Province of the Department of Potosi. The property can be classified as a silver-tin polymetallic (A...
PURPOSE: To perform safe temporary fixing of a fence in a state that a level is regulated during installation of a fence for a handrail for a balcony by a method wherein a support bed for the fence is arranged on a fixing bed, fixed releaseably from fixing, to a fixing part through ...
Transition zones in railway tracks are locations with considerable changes in the vertical stiffness of the rail support. Typically they are located near engineering structures, such as bridges, culverts, tunnels and level crossings. In ... H Wang,V Markine,R Dollevoet,... - International Sympo...
The empirical result also revealed that the most critical production factors were land, labour, planting material, and capital while age, level of education, household size, farm experience, and credit are the major determinants of technical efficiency in the study area. The mean efficiency of ...