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1 hour ago · Extrusion welding is a technology used for joining aluminum. The parameters for extrusion welding aluminum include a welding temperature of about 400–550 °C, a pressure in the welding region of about 150–250 MPa, a contact duration required for welding of about 0.5–2 mm/s, and a shear strain in the welding region.
1 hour ago · 2.1 Material and Specimen. Material selected in the study is the aluminum alloy 6061 and aluminum alloy 7075, both with heat treated condition of T0 and T6. The chemical composition of the materials is shown in Table 1, noting that AL 6061 primary elements are aluminum, magnesium and silicon, meanwhile the AL 7075 main elements are aluminum and zinc.
1 hour ago · Experimental investigations were conducted using a four-ball wear test machine, as shown in Fig. 1.The base oil used for testing was a paraffinic base oil (R100), which has a density of 0.886 g/cm 3, and a viscosity of 100.2 cSt at 40 °C.
1 hour ago · Li H, Peng W, Huang CG, Guedes Soares C (2022) Failure rate assessment for onshore and floating offshore wind turbines. J Marine Sci Eng 10(12):1965. Google Scholar Pinar Pérez JM, García Márquez FP, Tobias A, Papaelias M (2013) Wind turbine reliability analysis. Renewable and Sustainable Energy Rev 23:463–472
1 hour ago · The 77,597 AZ EB CO 2 recorder from AZ Instrument Corp., Taiwan was used in one box, and The HT-2000 digital CO 2 meter from Dongguan Xintai Instrument Co., Ltd., China was used in the other. The different CO 2 sensors were used to determine if there was a significant difference in the CO 2 concentrations between the two boxes.
1 hour ago · The presence of steam increased the surface area of carbon derived from bamboo up to 404.084 m 2 /g and produced mesoporous pores. Based on these considerations, activated carbon from the andong bamboo has the potential to become activated carbon to adsorb liquid pollutants such as reactive dyes.
1 hour ago · 44.2.1 Data. The main data used in this research are the height of the rain and the diameter of the raindrops. The data period is 2018–2019. The research location was taken in the city of Pontianak (West Kalimantan province in Indonesia) which is located at 0° 02′ 24″ N–0° 05′ 37″ S and 109° 16′ 25″–109° 23′ 04″ E. Data on rain height and raindrop diameter size were ...
