The schlieren method of measuring far-field focal spots offers many advantages at the Shenguang III laser facility such as low cost and automatic laser-path collimation. However, current methods of far-field focal spot measurement often suffer from low precision and efficiency when the final focal spot is merged manually, thereby reducing the accuracy of reconstruction. In this paper, we introd...

experiments were conducted at the horticulture research farm of horticulture department, bangabandhu sheikh mujibur rahman agricultural university (bsmrau), salna, gazipur during december, 2007 to may, 2009 to investigate the effect of bulb cutting and potting media on propagation of hippeastrum. the bulb cutting significantly influenced all the parameters except days required to first leaf eme...

an effort carried out to find out the smaller size of cuttings for propagation ofmorus alba in experimental area, department of forestry, range management and wildlife, university of agriculture, faisalabad, 2005. different size of cuttings i.e.5 cm, 10 cm, 15 cm and 20 cm were planted in polythene tubes of 9 cm x 18 cm. the attempt was also made to compare the performance of cuttings outdoor a...

due to the importance of weed control and the limitations of mechanical methods in some places, in this research the water jet cutting for weed control was investigated. the cutting tests were performed on camel thorn weed in shahid bahonar university of kerman. the water jet pressure of 90 bars was achieved with the aid of a suitable pump. the cutting time was studied in a completely randomize...

Rebar engineering in the construction industry lacks effective technical means and has a high processing cost waste rate. Under background of intelligent construction, centralized mode steel bars prefabricated factories realizes automatic improves efficiency bars. Using C# programming language, combined with Revit secondary development technology, generation rebar model export drawing are reali...

The effects of cutting tool coating material and cutting speed on cutting forces and surface roughness were investigated by Taguchi experimental design. Main cutting force, Fz is considered as a criterion. The effects of machining parameters were investigated using Taguchi L18 orthogonal array. Optimal cutting conditions were determined using the signal-to-noise (S/N) ratio which is calculated ...

Coal dust pollution in fully mechanized excavation faces not only affects the safety production of coal mine but also threatens health workers. In order to reduce and improve work conditions mines, layout dedusting-air duct dry collector influence position on dust-producing area were studied. addition, effects different cutting positions removal efficiency A full-scale model roadway is establis...

turning of hardened steels using a single point cutting tool has replaced the cylindrical grinding now as it offers attractive benefits in terms of lower equipment costs, shorter set up time, fewer process setups, higher material removal rate, better surface quality and elimination of cutting fluids compared to cylindrical grinding. in order to obtain desired surface quality by machining, prope...

Turning of hardened steels using a single point cutting tool has replaced the cylindrical grinding now as it offers attractive benefits in terms of lower equipment costs, shorter set up time, fewer process setups, higher material removal rate, better surface quality and elimination of cutting fluids compared to cylindrical grinding. In order to obtain desired surface quality by machining, pr...