Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Denny Widhiyanuriyawan"'
Autor:
Redi Bintarto, Moh. Syamsul Ma’arif, Denny Widhiyanuriyawan, Teguh Dwi Widodo, Rudianto Raharjo, Nugroho Adi Purnomo
Publikováno v:
Rekayasa Mesin, Vol 14, Iss 1, Pp 1-12 (2023)
This study aims to determine the effect of the protective gas flow rate on the tensile and shock strength of welded joints of dissimilar metals, namely aluminum 5052 – galvanized steel with Al-Si 4043 filler using argon gas as a shielding gas. The
Externí odkaz:
https://doaj.org/article/707bf23655534064bc5b56456e1d421d
Autor:
Eko Siswanto, Denny Widhiyanuriyawan, Mochammad Agus Choiron, Djarot Bangun Darmadi, Yasuo Katoh
Publikováno v:
International Journal of Technology, Vol 14, Iss 1, Pp 26-37 (2023)
This study aims to obtain the local heat penetration and local heat convection characteristics in a system where a flow of heated vapour cedes thermal energy to a horizontal heat-sink plate. The heat penetrates a bed of porous materials with varia
Externí odkaz:
https://doaj.org/article/b43e5a69ab2c4638a6c068c7cc815283
Publikováno v:
International Islamic University Malaysia Engineering Journal, Vol 24, Iss 2 (2023)
High humidity environments can accelerate the transmission, neutralization, or dissipation of frictional charges on the frictional surface of solid-solid triboelectric nanogenerator films (TENGs), which can reduce the output power. The moisture resis
Externí odkaz:
https://doaj.org/article/bc919a3e774c4c66a165fe98adb04592
Publikováno v:
Alexandria Engineering Journal, Vol 61, Iss 6, Pp 4729-4739 (2022)
This study aims to assess the role of activated carbon nanoparticles in hydro-degumming non-edible vegetable oils. Bamboo Activated Carbon Nanoparticles (BAC-NPs) is added to oils in degumming process. Characterizations revealed mesoporous structures
Externí odkaz:
https://doaj.org/article/fb402a51fd5749ffbaaf739fddac7855
Publikováno v:
Mekanika, Vol 21, Iss 1, Pp 13-19 (2022)
Dye-Sensitized Solar Cell (DSSC) is a type of solar cell that uses dyes to transfer sunlight to electrical energy. DSSC construction uses a layered system (sandwich) that consisting of a working electrode and an opposing electrode, both of which are
Externí odkaz:
https://doaj.org/article/aefc1417cecf4f39b69ea4f4f8ff774a
Publikováno v:
Tehnički Vjesnik, Vol 29, Iss 6, Pp 1861-1867 (2022)
The hole transport layer is one of the most crucial parts of the perovskite solar cell. Recently, some studies have improved perovskite solar cell performance by modifying the surface of the hole transport layer using double fabrication of inorganic-
Externí odkaz:
https://doaj.org/article/5b000fa6f7de4f19ace5f8b23421a4b4
Publikováno v:
Rekayasa Mesin, Vol 12, Iss 3, Pp 677-686 (2022)
This paper describes compare the performance and emissions of a 6-stroke engine with power-expansion up to BDC (bottom dead center) using pertalite fuel (non-renewable) and 99.7% ethanol (renewable alternative) with performance parameters including (
Externí odkaz:
https://doaj.org/article/9abc93e513ac4201acc05c66de99153e
Publikováno v:
Rekayasa Mesin, Vol 12, Iss 3, Pp 613-620 (2022)
Wetlands water is water formed from the breakdown of organic substances found in peatlands. In general, wetlands water has acidic properties (pH
Externí odkaz:
https://doaj.org/article/5816ba1bcfa14919914548bb967b07bc
Publikováno v:
Ain Shams Engineering Journal, Vol 12, Iss 4, Pp 3905-3918 (2021)
This paper discusses the role of water cavities to break palm oil into glycerol and fatty acids. The cavities were generated by injecting water via a nozzle into palm oil in the Hele-Shaw cell at room temperature, without catalyst and pressure of 2,
Externí odkaz:
https://doaj.org/article/80ac0ea9c40740c4ac30206d993bc8cc
Publikováno v:
Tehnički Vjesnik, Vol 28, Iss 2, Pp 379-384 (2021)
In the coastal areas, there are found many cases of clean water crisis; the most reasonable solution is to use the solar still from salty seawater. Sea salt concentration levels vary widely in each region depending on ecological conditions and materi
Externí odkaz:
https://doaj.org/article/429c4b415bb34e7b85830493c9c5eab0