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All Journal Jurnal Sains Materi Indonesia Komunikasi Fisika Indonesia SEMIRATA 2015 Journal of Aceh Physics Society Spektra: Jurnal Fisika dan Aplikasinya Jurnal Fisika Indonesia Unri Conference Series: Community Engagement PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Krisman Krisman
Universitas Riau
Aerospace Engineering Humanities Astronomy Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Materials Science & Nanotechnology Physics Other

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PENENTUAN CELAH PITA ENERGI FILM TIPIS BARIUM STRONSIUM TITANAT (Ba1-xSrxTiO3) UNTUK x= 0,4 ; 0,5 DAN 0,6 Rahmi Dewi; Krisman Krisman; Taufiq Hidayat
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 5 (2016): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2016
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.018 KB) | DOI: 10.21009/0305020220

Abstract

Barium Strontium Titanate (BST) thin film on the substrate glass was successfully fabricated by using sol-gel method. The purpose of this research is to obtain optical energy band gap value by adopting Tauc plot method with various composition and temperature. Obtaining of such information could be through identifying the degree of absorbance, degree of transmittance, the extent of refractive index, the usage of thin film and its quantified coefficients. Subsequently, the optical properties of thin film are characterized by using Ultraviolet-Visible Spectrophotometer with a thin film of Ba1-xSrxTiO3 subjected to temperatures of 650ºC. Upon subjected to temperature stated above, the wide energy band gap optical thin film Ba0,6Sr0,4TiO3 is in the range of 2.0 eV for Ba0,5Sr0,5TiO3 is in the range of 1.55 eV and for Ba0,4Sr0,6TiO3 is in the range of 2.0 eV. Keywords: Thin Film BST, Composition, Temperature, Energy Band Gap.
Pengembangan mini pabrik Gaplek menggunakan energi limbah Biomassa dengan Sistim Blower di Desa Tarai Kecamatan Tambang Kabupaten Kampar Provinsi Riau Juandi Muhammad; Usman Malik; Krisman Krisman
Unri Conference Series: Community Engagement Vol 4 (2022): Seminar Nasional Pemberdayaan Masyarakat
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/unricsce.4.8-16

Abstract

The Covid-19 pandemic has had a tremendous impact on various sectors of human life. The government has made various rules and policies in dealing with pandemics and the impacts they cause but are more top-down and common which often do not touch on substantive things in accordance with real conditions in the local community. On the contrary, local communities that better understand their environmental situation and conditions are often not involved in determining the rules and policies in addressing this pandemic. Kampung Tangguh as an effort by the community to survive during a pandemic is a form of local wisdom-based community involvement in the community itself in helping the government overcome the Covid-19 pandemic and the impact it causes. Using a qualitative approach through field reviews, interviews, and documentation studies, this paper illustrates the form of community participation in addressing the Covid-19 pandemic. From the results of this study, it is seen that people at the village level or the neighborhood where they live can actively participate together in overcoming the spread and impact of Covid-19.
PEMANFAATAN LIMBAH BIOMASSA TEMPURUNG KELAPA UNTUK ALAT TEKNOLOGI PENGERING PAKAIAN BERBASIS ARDUINO UNO Mutia Febri Irdayanti; Krisman Krisman; Juandi Muhammad; Annisa Alqorina
Komunikasi Fisika Indonesia Vol 20, No 1 (2023)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.20.1.97-102

Abstract

Research on the utilization of coconut shell biomass waste for clothes dryer technology based on Arduino Uno has been carried out using the experimental method. This Arduino Uno-based dryer technology uses biomass energy from coconut shells with a mass of 2,000 grams for thin clothes and 4,000 grams for thick clothes. Observations were made based on the amount of coconut shell mass and the type of clothing used at 10 minute intervals. The results for a mass of 2,000 grams of coconut shell reached the highest temperature value with an average source temperature of 61.32°C, an average temperature in the drying chamber of 54.53°C with a minimum humidity of 19.5%, while the results for a mass of 4,000 grams coconut shell reached the highest temperature value with an average source temperature of 100.46°C, an average temperature in the drying chamber of 94.62°C with a minimum humidity of 21.1%.
Co-Authors Annisa Alqorina Citra Siti Fatimah Julianti Detri Yulitah Erwin Amiruddin Erwin Erwin Fauziana - Hamdi Hamdi Isna’im Isna’im Juandi Muhammad Khaironiati - Mutia Febri Irdayanti Neti Satria Rahmad Efendi Rahmi Afrida Syahraini Rahmi Dewi Rahmi Dewi Rahmi Dewi Rahmi Dewi Rini, Ari Sulistyo Sudirman Sudirman Sunit Hendrana Syakbaniah Syakbaniah T Emrinaldi Taufiq Hidayat Tengku Said Hussain Shahab Tiara Pertiwi Tri Susilawati TS Luqman Husein Usman Malik Yanuar Hamzah Yusmeri Yusmeri Zuhdi Maaruf Zulkarnaen Zulkarnaen