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All Journal International Journal of Renewable Energy Development Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Pengembangan Energi Nuklir Jurnal Ilmiah Teknik Elektro Komputer dan Informatika (JITEKI) Journal of Engineering and Technological Sciences Journal of Aceh Physics Society ALHAZEN JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Indonesian Journal of Chemistry Jurnal Ilmu Fisika Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Jurnal Abdimas Bina Bangsa Journal of Applied Agricultural Science and Technology Prosiding Seminar Nasional Universitas Serambi Mekkah Jurnal Natural Aceh International Journal of Science and Technology Teknologi dan Industri Pertanian Indonesia Jurnal Rekayasa elektrika International Journal of Renewable Energy Development Wahana Fisika : Jurnal Fisika dan Terapannya
Elin Yusibani
Department Of Physics, Faculty Of Mathematics And Natural Sciences, Universitas Syiah Kuala, Banda Aceh 23111, Indonesia
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Social Sciences Other

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A Review on Viscometer Devices for Gas Phase Elin Yusibani
Aceh International Journal of Science and Technology Vol 1, No 3 (2012): December 2012
Publisher : Graduate Program of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (679.696 KB) | DOI: 10.13170/aijst.1.3.133

Abstract

Abstract -Viscosity, one of the transport properties, is a basic property required for developing any device in which fluid flows. In the present paper, major gas viscometers devices are reviewed. The review is covering to the pressures and the temperatures ranges, methods and accuracy of the instruments, and the coefficient of viscosity-range of the sample. This study is expected become useful information for any researcher who wants to develop a gas viscometer apparatus in a near future. By identifying the coefficient of viscosity-range and the  easurement-range of temperatures and pressures, then we can choose the effective and efficient method to be developed.
Physical and Chemical Properties of Indonesian Coffee Beans for Different Postharvest Processing Methods Elin Yusibani; Peter Lloyd Woodfield; Adi Rahwanto; Muhammad Syukri Surbakti; Rajibussalim Rajibussalim; Rahmi Rahmi
Journal of Engineering and Technological Sciences Vol. 55 No. 1 (2023)
Publisher : Directorate for Research and Community Services, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/j.eng.technol.sci.2023.55.1.1

Abstract

The purpose of this study was to identify the physical and chemical properties of Indonesian coffee beans for different postharvesting methods after being roasted. Several types of Indonesian export coffee, i.e., Gayo Luwak coffee, Wamena coffee, Toraja coffee, Gayo coffee, Flores coffee and Kintamani coffee, were used in the present study. Each coffee has its own aroma and taste according to the location, soil type, and land elevation. The roasting process started with preheating the roasting machine, after which the samples were roasted for about 15 minutes at 215℃ to obtain the medium-to-dark (MTD) roasting level. The physical properties measured included density, mass loss, porosity, water content, and morphology using a scanning electron microscope. The transmittance spectrum was observed by Fourier transform infrared spectroscopy (FTIR). The physical properties of the coffee were successfully measured. The bulk density varied from 0.6 to 0.7 g/cm3, and particle density was about 0.9 g/cm3 for green beans. The roasting process reduced the bulk and particle density to 0.3 g/cm3 on average and 0.8 g/cm3, respectively. The fully-washed condition gave an overlapping spectrum for green and roasted beans, which shows that the roasting process did not affect the spectrum. The results can be used to study the coffee quality resulting from different postharvest processing methods.
Pengukuran Viskositas beberapa Produk Minyak Goreng Kelapa Sawit setelah Pemanasan Elin Yusibani; Nursabila Al Hazmi; Evi Yufita
Jurnal Teknologi dan Industri Pertanian Indonesia Vol 9, No 1 (2017): Vol.(9) No.1, April 2017
Publisher : Agricultural Faculty

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (814.753 KB) | DOI: 10.17969/jtipi.v9i1.6108

Abstract

Measurement of palm oil viscosity after heat treatment has been done. The sample is palm oil packaging and bulk ones Falling body method is used as an instrument to determine the coefficient of viscosity which had previously been calibrated using water and REFPROP. The measurement results showed that the coefficient of viscosity of palm cooking oil that has been used 10 times for 30 minuted will rise by 76% for oil packs A and about 45% for a sample of bulk, respectively. For palm oil used once but its has been using for one hour, the viscosity will be comparable to 6 times the use of the cooking oil used for 30 minutes. Thus based on the masurement of viscosity value, the palm oil will have a viscosity values are relatively small when used often, but in a short time than is used only once, but in a relatively longer.
The Effect of Temperature and Roasting Time on The Physical Properties of Arabica and Robusta Gayo Coffee Bean Elin Yusibani; Ikramullah ikramullah; Evi Yufita; Zulkarnain Jalil; Endi Suhendi
Journal of Applied Agricultural Science and Technology Vol. 7 No. 2 (2023): Journal of Applied Agricultural Science and Technology
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/jaast.v7i2.75

Abstract

The effect of variations in temperature and roasting time on the physical properties of coffee beans originating from the Gayo highlands with Arabica and Robusta types have been studied in this paper. Physical properties measured include weight loss, true density, porosity, and water content. The measurement procedure follows Standard Nasional Indonesia (SNI) 01-2907-2008. Three roasting levels were used in this study, i.e., Light Roast (159 -164 °C), Medium Roast (211 - 215 °C), and Dark Roast (above 232 °C) by an oven. The result showed that the weight loss for Arabica and Robusta coffee beans is from 11 - 19% and 14 - 29%, respectively. The true density for Arabica and Robusta coffee beans ranged from 0.905 - 1.085 g/cm3 and 0.950 - 1.156 g/cm3, respectively. The difference in porosity changes before and after roasting was 23 - 73% for Arabica and 33 - 68% for Robusta coffee beans. Meanwhile, the water content of Arabica and Robusta coffee beans after roasting is 0.7 - 5% and 0.6 - 6%, respectively. The value of the weight loss, true density, and water content of Arabica is lower than that of the Robusta coffee bean, while the porosity value of Arabica is higher than that of the Robusta coffee bean.
Realtime instrumentation system towards blood oxygen saturation level monitoring with Liquid Crystal Display (LCD) and smartphone Zakaria Husen; Zaid Albarra; Khairi Suhud; Fauzi Fauzi; Elin Yusibani; Irhamni Irhamni; Fadhli Syamsuddin; Edwar Iswardy; Nurhanif Nurhanif; Ahmad Fairuz Bin Omar; Muhammad Syukri Surbakti
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.31131

Abstract

Abstrak. Oksigen memainkan peranan vital dalam tubuh untuk mengatur sistem peredaran darah. Namun jika kadar saturasi oksigen dalam darah (SpO2) berkurang atau tidak mencukupi maka dapat menyebabkan sesak nafas, bahkan dapat mempengaruhi fungsi kerja otak. Perangkat oksimeter digunakan untuk mengukur kadar saturasi oksigen dalam darah dengan pengukuran secara non-invasif, sehingga kekurangan oksigen dalam darah dapat dideteksi lebih awal. Oksimeter yang tersedia saat ini umumnya menampilkan hasil SpO2 tidak terhubung ke jaringan sehingga tidak dapat dipantau secara jarak jauh. Oleh karena itu diperlukan suatu perangkat yang dilengkapi dengan fitur monitoring dalam jaringan agar dapat memantau kondisi partisipan secara real-time. Penelitian ini bertujuan untuk mengembangkan sistem monitoring pengukuran saturasi oksigen dalam darah yang dapat diakses secara remote menggunakan smartphone. Alat rancangan ini menggunakan sensor MAX30100 dan NodeMCU ESP8266 sebagai mikrokontroler. Hasil pengukuran alat rancangan dapat dipantau secara real-time melalui website menggunakan aplikasi Blynk. Data pembanding yang digunakan adalah alat Oksimeter komersial. Pengujian telah dilakukan pada partisipan laki-laki berusia 14 dan 22 tahun, dan perempuan berusia 18 dan 45 tahun. Hasil pengujian secara keseluruhan menunjukkan bahwa alat yang dirancang relative sama dengan oksimeter komersial, yang ditunjukkan oleh nilai thitung ttabel. Abstract. Oxygen plays a vital role in regulating our blood circulation system. However, if the oxygen levels in the blood decrease or are insufficient, it can cause shortness of breath and even affect brain function. To address this problem, an oximeter provides an effective solution by providing a device that can measure blood oxygen saturation without having to place any device inside the body. Currently available oximeter devices usually only display the SpO2 results on the device itself. Therefore, a device with a remote monitoring feature is needed to monitor participants’ condition in real-time. This research aims to develop a remote-access blood oxygen saturation measurement monitoring system using the MAX30100 sensor and the NodeMCU ESP8266 as the microcontroller, the values can be viewed in real-time on website by the Blynk app. The comparison data used is a comercial oximeter device. The participants were the males aged 14 and 22 years, and the female aged 18 and 45 years. Herein, we found that the designed instrument shows excellent performance in which ttest ttable from overall data.
Modifikasi Fantom ORNL_MIRD untuk Kebutuhan Simulasi Monte Carlo Pasien Radioterapi Kanker Payudara Menggunakan MCNPX Layna Miska; Rini Safitri; Irwandi Irwandi; Elin Yusibani
Jurnal Rekayasa Elektrika Vol 15, No 1 (2019)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (552.932 KB) | DOI: 10.17529/jre.v15i1.13392

Abstract

In medical physics, the simulation of radiation dose distribution in the body of radiotherapy patients is generally carried out using the Monte Carlo method. But in conducting this simulation, medical physicists are often faced with the incompatibility problems of phantom geometry with simulation needs. Phantom ORNL-MIRD is the most commonly used phantom in simulation. In a radiotherapy simulation, cancer cells are usually only assumed to be in the phantom’s body without any concrete form. This can cause the administration of radiation doses that are not right on cancer cells. Phantom ORNL-MIRD is also only composed of three materials, namely bone, lung, and the rest are considered as soft tissue. This certainly provides inappropriate simulation results, especially in the case of breast cancer radiotherapy where the breast is composed of adipose tissue. This study aims to make ORNL_MIRD phantom modelling suitable for the needs of Monte Carlo simulations of breast cancer patients. The phantom modification will be carried out on the soft tissue structure of the breast and the structure of the skin tissue. Cancer cells with a diameter of 2 cm were also added to the left breast at a depth of 2.5 cm. The γ rays from radionuclide 60Co with the energy of 1.1732 MeV and 1.3325 MeV and the probabilities of 0.989 and 0.998, respectively, were exposed to the phantom. The simulation results show that there are significant differences before and after modification. Absorption dose values in the breast with a soft tissue without tumour cells were 0.31 mGy with a relative error of 0.0023, while the absorbency dose rate in the breast with soft tissue and tumour cells was 0.2 mGy with a relative error of 0.0023.
PERANCANGAN SISTEM INFORMASI GEOGRAFIS ONLINE (SIG-ONLINE) DALAM PENGUATAN POTENSI GAMPONG Muhammad Isa; Freddy Sapta Wirandha; Didik Sugiyanto; Elin Yusibani
Jurnal Abdimas Bina Bangsa Vol. 4 No. 2 (2023): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v4i2.567

Abstract

An Online Geographic Information System (SIG-Online) has been successfully designed to strengthen the potential of gampong (village) as a form of community service at Gampong Meunasah Mesjid Lampuuk. The problem of partners so far is the lack of information about the importance of Gampong potential so that partners experience limitations in knowing access to information about the potential of the gampong. The stages in building a GIS Online system begin with planning, analysis, design, implementation and maintenance. SIG-Online will later display Gampong potential data and Gampong information equipped with geospatial data such as satellite image basemaps of the Gampong area, Gampong boundaries, gampong layout and population data of the Gampong community and its natural beauty. Technical stages in building SIG-Online start from data collection, processing, digital analysis and displaying SIG-Online on android applications by utilizing the internet network. In the process of building SIG-Online, community service collaborates with the non-governmental organization (NGO) Prodeelat. The output of this service is to provide convenience for partners in accessing the potential of gampong through the SIG-Online system so that there is an increase in peace and welfare in the community (village).  
Modifikasi Fantom ORNL_MIRD untuk Kebutuhan Simulasi Monte Carlo Pasien Radioterapi Kanker Payudara Menggunakan MCNPX Layna Miska; Rini Safitri; Irwandi Irwandi; Elin Yusibani
Jurnal Rekayasa Elektrika Vol 15, No 1 (2019)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v15i1.13392

Abstract

In medical physics, the simulation of radiation dose distribution in the body of radiotherapy patients is generally carried out using the Monte Carlo method. But in conducting this simulation, medical physicists are often faced with the incompatibility problems of phantom geometry with simulation needs. Phantom ORNL-MIRD is the most commonly used phantom in simulation. In a radiotherapy simulation, cancer cells are usually only assumed to be in the phantom’s body without any concrete form. This can cause the administration of radiation doses that are not right on cancer cells. Phantom ORNL-MIRD is also only composed of three materials, namely bone, lung, and the rest are considered as soft tissue. This certainly provides inappropriate simulation results, especially in the case of breast cancer radiotherapy where the breast is composed of adipose tissue. This study aims to make ORNL_MIRD phantom modelling suitable for the needs of Monte Carlo simulations of breast cancer patients. The phantom modification will be carried out on the soft tissue structure of the breast and the structure of the skin tissue. Cancer cells with a diameter of 2 cm were also added to the left breast at a depth of 2.5 cm. The γ rays from radionuclide 60Co with the energy of 1.1732 MeV and 1.3325 MeV and the probabilities of 0.989 and 0.998, respectively, were exposed to the phantom. The simulation results show that there are significant differences before and after modification. Absorption dose values in the breast with a soft tissue without tumour cells were 0.31 mGy with a relative error of 0.0023, while the absorbency dose rate in the breast with soft tissue and tumour cells was 0.2 mGy with a relative error of 0.0023.
Remote Sensing Satellite Imagery and In-Situ Data for Identifying Geothermal Potential Sites: Jaboi, Indonesia Muhammad Isa; Dwiky Pobri Cesarian; Ismail Ahmad Abir; Elin Yusibani; Muhammad Syukri Surbakti; Muksin Umar
International Journal of Renewable Energy Development Vol 9, No 2 (2020): July 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.9.2.237-245

Abstract

Remote sensing makes it possible to map potential geothermal site for a large area effectively using thermal infrared. The purpose of the present research is to overlay ground temperature, resistivity and satellite retrieved temperature in identifying geothermal potential site in Jaboi, Sabang-Indonesia. The data of acquisition of the DEM imagery was January 3rd, 2009 and the Landsat 8 imagery is July 18th, 2017. The satellite data were applied to extract the land surface temperature and land classification across. Two supporting data in situ were used to validate the results from remote sensing. First dataset was ground temperature measurements with total 114 points and second dataset was vertical electrical sounding (VES) with total of 51 points. Satellite, VES and ground temperature data were processed and analysed using the Envi 5.3, PCI Geomatica 2016 and ArcMap 10.4. The results from each data were integrated to produce a map shows geothermal potential. Its integration produced four areas which were considered to have high geothermal potential. However, these areas vary in term of the clustering of the features of interest, for example lineament and drainage density of the area, high temperature in the surface area, fault existence and low resistivity subsurface. All the features must take into consideration to rank potential area which has higher potential. Finally, a map of geothermal potential across were successfully created as an insight for future reference. 
REFERENCE ON THERMOPHYSICAL PROPERTIES: DENSITY AND VISCOSITY OF WATER FOR ATMOSPHERIC PRESSURE Elin Yusibani; Aprina Aprina; Teuku Khairuman
Jurnal Natural Volume 16, Number 2, September 2016
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jn.v16i2.4919

Abstract

A reference on thermophysical properties, density and viscosity, for water at atmospheric pressure has been developed in MS Excel (as a macros). Patterson’s density equations and Kestin’s viscosity equations have been chosen as a basic equation in the VBA programming as a user-defined function. These results have been compared with REFPROF as a wellknow standart reference
Co-Authors Abir, Ismail Ahmad Adi Rahwanto Ahmad Arif Hasibuan Ahmad Fairuz Bin Omar Aprina Aprina Ardiah, Lena Asril Pramurtadi Bambang Joko Suroto Cesarian, Dwiky Pobri Cut Khairunnisa Dedi Satria Desy Fitriana Desyandri Desyandri Dewi, Sri Safrina Dwiky Pobri Cesarian Edwar Iswardy Elly Sufriadi Endang Lestari Endi Suhendi Evi Yufita Fadhli Syamsuddin Faliqul Isbah Farah Dina Fashbir Fashbir Fashbir, Fashbir Fauzi Fauzi Fauzi Fauzi Fitria Helmiza Freddy Sapta Wirandha Gunawati Gunawati GUNAWATI, GUNAWATI Helmiza, Fitri Hidayatun Nisa IDRS, NASRULLAH Ikramullah ikramullah Intan Mulia Sari Intan Mulia Sari, Intan Mulia Iqhrammullah, Muhammad Irhamni Irhamni Irwandi Irwandi Irwandi Irwandi Ismail Ahmad Abir Iswardy, Edwar Juli Erlia Kanei Shinzato KHAIRI SUHUD Khairiaton Khairiaton Khazanna Kosuke Yoshimura Lahna, Kurnia Layna Miska Lena Ardiah Leni Heliawati Lloyd Woodfield, Peter M Syukri Surbakti Mailizar Mailizar Maswati ., Maswati Maulinda, Maulinda Mitaphonna, Rara Muhammad Farhan Muhammad Isa Muhammad Isa Muhammad Isa Muhammad Isa Muhammad Shadiq Maula, Teuku Muhammad Syukri Surbakti Muhammad Syukri Surbakti Muksin Umar Muliadi Ramli Mursal Mursal Muzakiah, Muzakiah Nazli Ismail Nurhanif Nurhanif Nurjannah Nurjannah Nurjannah Nurjannah Nurjannah Nurjannah Nursabila Al Hazmi Nurul Fitri Nurul Fitri Nurul Mafazi Oktavia, Rini Omar, Romarzila Peter Lloyd Woodfield Peter Lloyd Woodfield Putri Meinelva Rahmi, Rahmi Rahpita Windriani Rajibussalim Rajibussalim Rajibussalim Rajibussalim Rini Safitri Rini Safitri Riski Rahmania Sagir Alva SARINA . Saudiah Mawaddah Saumi Syahreza Sidik, Adi Permana Sitti Hadaina Sri Safrina Dewi Surbakti, Muhammad Syukri Syarifah Zainura Teuku Khairuman Tjoet Nia Usmawanda, Tjoet Nia Umar, Muksin Viza Yusniar, Viza Widya Angreni Woodfield, Peter Lloyd Yuli Andriani Zaid Albarra Zakaria Husen Zakaria Zakaria Zulkarnain Jalil Zulkarnain Jalil