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All Journal JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality
Aroli Harefa
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Engineering Industrial & Manufacturing Engineering Transportation

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KARAKTERISASI DAN PREPARASI SENSOR BERBASIS KITOSAN SEBAGAI DETEKTOR PENYAKIT DIABETES Juan Randy Simamora; Iskandar Iskandar; Aroli Harefa; Gusnita Betaria Sinaga
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 5, No 1 (2021): VOL 5 NO 1
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v5i1.535

Abstract

Characterization and preparation of chitosan-CMC films have been carried out in detecting diabetes. The characteristics of the chitosan-CMC film are able to detect blowing acetone levels out of the human breath, indicated by the unstable electrical properties of the output voltage between patients and non-sufferers. Acetone itself is a substance produced when metabolic processes take place in the body. Voltage increases due to the influence of imperfect metabolic processes, so diabetics produce excessive levels of acetone. The sensor film was modified chitosan-CMC, with varied mass composition of 0.5 g: 0.1 g, 0.5 g: 0.5 g. Chitosan-CMC film was fabricated using the electrodeposition method. The chitosan-CMC film characteristics of 0.1 gr and 0.5 gr from the fabrication and measurement process of PSA obtained 3,716.34 nm and 5,129.97 nm. The FT-IR test results of 0.1 g and 0.5 g of chitosan-CMC showed a change in the relationship between different functional groups. The UV-Vis test obtained a different maximum absorbance for each chitosan-based sensor with a composition of Cs-CMC 0.5 w / v, Cs-CMC 0.1 w / v, respectively 0.114167 (427 nm), 0.098258 ( 417nm). It shows that the chitosan-CMC based sensor with the addition of 0.5 g of CMC has a very high sensitivity concentration. Chitosan-CMC sensor film with 0.5 CMC has good characteristics, on a very even film surface, has high thermal properties and an energy gap of 3.87 eV.
Analisis Perubahan Bentuk Ruang pada Rumah Adat Karo di Desa Lingga Dasrizal Dasrizal; Asri Afriliany Surbakti; Sandros Timoti Tambun; Aroli Harefa
JUITECH: Jurnal Ilmiah Fakultas Teknik Universitas Quality Vol 7, No 1 (2023): Vol 7 No. 1 Tahun 2023
Publisher : Universitas Quality

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36764/ju.v7i1.1025

Abstract

Traditional houses are authentic historical-cultural heritage architecture and full of philosophy. One of them is the Karo Traditional House which is commonly called Siwaluh Jabu because it is inhabited by eight heads of families. Changes in human behavior due to the growing modernization process caused significant changes in the shape of the space in the Karo Traditional HouseThe change in the shape of the space in the karo traditional house occurs because there is no longer a desire to inhabit and build a traditional house due to friction of theft problems, social relations between families that are not in harmony, children cannot studied because of the noisy and crowded house conditions, and the interior completeness that is not possible. Some of these factors have resulted in a decrease in the concern of the Karo people for their traditional houses, which in the end there have been several changes in the spatial patterns of Karo traditional houses.The purpose of this study was to determine the shape of the space in the Karo traditional house in Lingga Village and the changed  in the shape and function of the space that occur in the Karo traditional house today. To achieve this goal, this research was carried out using a qualitative description method, where researchers made direct observations and conduct interviews with the local community. As a mandatory output of research, scientific articles will be published in nationally accredited journals.
Co-Authors Asri Afriliany Surbakti Gusnita Betaria Sinaga Iskandar Iskandar Juan Randy Simamora Sandros Timoti Tambun