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All Journal Jurnal Ilmu Lingkungan Jurnal Ilmu Lingkungan Komunikasi Fisika Indonesia Bulletin of Electrical Engineering and Informatics Jurnal Online Mahasiswa (JOM) Bidang Matematika dan Ilmu Pengetahuan Alam SEMIRATA 2015 Journal of Aquatropica Asia Journal of Aceh Physics Society JOURNAL ONLINE OF PHYSICS ORBITA: Jurnal Pendidikan dan Ilmu Fisika WAJAH HUKUM Jurnal Ilmu Fisika INSIST (International Series on Interdisciplinary Research) APTEK Unri Conference Series: Community Engagement Mejuajua Science, Technology, and Communication Journal Jembatan Hukum: Kajian Ilmu Hukum, Sosial dan Administrasi Negara Wahana Fisika : Jurnal Fisika dan Terapannya Tepak Sirih : Jurnal Pengabdian Kepada Masyarakat Madani Jurnal Pendidikan dan Kewarganegara Indonesia (jupenkei) Jurnal Bakti UPPR
Juandi Juandi
Universitas Riau
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Other

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Interpretation of aquifer layers in peatland areas using the Wenner configuration geoelectric method in Rimba Panjang Village, Tambang District, Kampar Regency Firmansyah, Restu; Muhammad, Juandi
Indonesian Physics Communication Vol 21, No 3 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jkfi.21.3.265-270

Abstract

Geoelectric is a geophysical method used to determine the geological conditions of the earth's subsurface based on the variations of rock resistivity value. Interpretation of the aquifer layer is carried out on 2 paths with a length of 300 meters each. The lithology of the study area consists of layers of clay, peat, clay, sand, coarse sandstone, dry gravel, mudstone, limestone, tufan sand to siltstone. According to the data processing results, it shows that the aquifer in Rimba Panjang Village is at a depth ranging from (12.8 – 24.9) meters below ground level with medium groundwater potential. Interpretation using Res2Dinv Software as well as geological maps of the surrounding area informed the subsurface conditions and the presence of groundwater aquifers of the study area. It was found that the resistivity interval of trajectory 1 are (164.341) Ωm, (709 – 1477) Ωm, to (1477 – 3075) Ωm while of trajectory 2 are (864 – 1642) Ωm, (1642 – 3118) Ωm, to (3118 – 5921) Ωm. It can be concluded that the deeper the soil layer, the higher the moisture content. Because the deeper the soil layer, the lower the maturity of the peat, so that the soil is able to hold more water.
Interpretasi Struktur Geologi Bawah Permukaan Dengan Menggunakan Metode Geolistrik Konfigurasi Schulumberger Studi Kasus di Kampus UNRI Krisman; Zulfa; Muhammad, Juandi
Aptek Jurnal Apliksai Teknologi (APTEK): Volume 17, No. 01, Desember 2024
Publisher : Fakultas Teknik Universitas Pasir Pengaraian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30606/aptek.v17i1.3007

Abstract

Melalui metode geolistrik ini, karakteristik dan kedalaman aquifer yang terkandung dalam lapisan tanah dapat diidentifikasi dengan lebih akurat. Dalam konteks ini, penelitian ini bertujuan untuk mengkaji kondisi air bawah tanah di Kampus UNRI, tepatnya depan laboratorium Fisika Bumi, dengan menggunakan metode geolistrik untuk mengetahui struktur geologi bawah permukaan yang berpotensi sebagai sumber air bersih. Hasil dari penelitian ini diharapkan dapat memberikan model pengelolaan berwawasan lingkungan yang dapat meningkatkan pemanfaatan air bawah tanah untuk pemenuhan kebutuhan air di Kampus FMIPA UNRI, dari penelitian ini sangat penting, baik dalam bidang ilmu geofisika maupun dalam ilmu lingkungan, khususnya yang berkaitan dengan keberlanjutan sumber daya air bawah tanah. Selain itu, penelitian ini juga relevan dengan pengembangan IPTEK dalam rangka konservasi air bawah tanah, serta mendukung kebijakan pemerintah dalam mencapai tujuan keberlanjutan pembangunan yang melibatkan aspek sosial, ekonomi, dan lingkungan. Setelah dilakukan penelitian menggunakan metode geolistrik konfigurasi elektroda Schlumberger di areal study didapatkan kesimpulan, yaitu hasil pengolahan data geolistrik bahwa akuifer bebas berada pada kedalaman 19 metee sampai 25 meter dengan nilai resistivitas 62,7 Ωm sampai 88,3 Ωm. Di daerah studi dapat dikatakan bahwa di daerah studi teridentifkasi terdapat 13 lapisan
Investigation of aquifer distribution and groundwater quality in the Village of Rimbo Panjang, Kampar District Fitriani, Riska; Muhammad, Juandi; Sulistyo Rini, Ari
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.4

Abstract

The study using the geoelectric method produces resistivity values with different color images. Data is displayed in the form of a collection of 1D and 2D pseudosection points which are then processed using Progress and Res2Dinv software. The 1D cross-section results in the appearance of the subsurface structure vertically or shows the depth and thickness of the subsurface layers. The results of Wenner and Schlumberger configuration data processing show that there are differences in resistivity and depth values on each path but have the same lithology. This is because the Schlumberger configuration can only display 1 point of depth vertically, so the data obtained cannot compare the resistivity horizontally. But the advantage of the Schlumberger configuration is that it is capable of displaying a large depth compared to the Wenner configuration so that it is difficult to read a thin layer of this configuration. The Wenner configuration result displays the depth and length of the layer along the track so that the thickness of the layer from the start of the track to the end of the track can be interpreted. The layer which has a small thickness can be identified using the Wenner configuration, but cannot reach any deeper depths.
Modeling of terahertz radiation absorption temperature distribution in biological tissue of a cattle using Simulink-MATLAB model Kurnia, Dewi; Hamdi, Muhammad; Muhammad, Juandi; Saktioto, Saktioto; Yupapin, Preecha; Abdullah, Hewa Yaseen
Science, Technology and Communication Journal Vol. 1 No. 2 (2021): SINTECHCOM Journal (February 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i2.6

Abstract

Terahertz radiation (THz) has interesting and effective properties in the field of biomedical imaging techniques, this is because of its ability to interact easily, is not ionized, and does not damage biological tissue. The purpose of this study was to determine the effect of THz radiation power density on temperature distribution and heat production in bovine biological tissue consisting of skin, fat, and muscle using a modeling approach. This study uses biophysical computation techniques with the Simulink-MATLAB model in the 0.1 – 1 THz frequency range, 50 – 150 mW power, and 5 – 25 mW/mm3 power density. Temperature distribution modeling is carried out in two ways, namely with different power densities and variations in the circumference of the THz radiation source. The results showed that the higher the power density used, the greater the absorbed radiation energy with increasing temperature. This causes the temperature distribution in the biological tissue to be wider and the production of heat in the tissue will increase. The results of imaging analysis of temperature distribution to depth in bovine biological tissue, show that fat tissue has less heat production compared to other tissues. The comparison of experimental data and modeling results shows an error percentage of 1.09%.
Analysis of shallow well depth prediction: A study of temporal variation of GRACE satellite data in Tampan District-Pekanbaru, Indonesia Pertiwi, Meryati; Muhammad, Juandi; Farma, Rakhmawati
Science, Technology and Communication Journal Vol. 1 No. 1 (2020): SINTECHCOM Journal (October 2020)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i1.24

Abstract

Urban geographic areas that are far from surface water resources cause the availability of groundwater to be limited. Groundwater is the main source of water for urban communities today, however, groundwater does not always exist. Groundwater search continues with the old method which takes a long time. In this study, a groundwater search using a satellite imaging method is proposed to create work effectiveness and a faster time. This study aims to analyze the underground water reservoir in Tampan District using GRACE satellite data in the form of variations in total water storage and correlated with in-situ data. The method used is in the form of total water storage variation modeling in the form of multiple linear regression equations. Parameters that influence the modeling of total water storage variations are rainfall, evaporation, and run-off. The classical assumption test and model feasibility test are used to determine the parameter accuracy in data estimation. The results showed that the multiple linear regression model passed the assumption test and the model feasibility test. The value of the run-off coefficient is greater than the value of the precipitation coefficient. This is because Tampan District has sandy clay rock types and decreasing green open land, so the potential for groundwater loss in the Tampan District area is 1,180,326.63 m3/month.
Analysis of non-destructive testing ultrasonic signal for detection of disabled materials based on the Simulink-MATLAB Mathematica computation method Febrianti, Ade; Hamdi, Muhammad; Muhammad, Juandi
Science, Technology and Communication Journal Vol. 1 No. 2 (2021): SINTECHCOM Journal (February 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i2.27

Abstract

In this paper, an ultrasonic non-destructive test (NDT-UT) has been carried out on steel using the Simulink-MATLAB Mathematica computation method. This study aims to analyze the NDT-UT output signal for material defect detection using secondary data as the first sample. The sample is then analyzed using the fast Fourier transform (FFT) method to produce a spectrum waveform and image thermography. It can be seen that there is a decrease in signal height from 1 a.u to 0.55 a.u. The first sample waveforms were used to analyze the second sample, third sample, and fourth sample, and all the samples had different defects. The results of the sample analysis are in the form of a thermographic image that shows the temperature level based on the distribution of red (R), green (G), and blue (B) images on the sample surface. The NDT-UT output signal produces a sinusoidal wave similar to the results of the Simulink-MATLAB modeling analysis on the initial input echoes and the back wall, with a percentage inequality of 10%. Then validated the sinusoidal signal from the NDT-UT which gave a percentage of inequality between 0% – 42%. More complex or irregular defects result in a larger percentage or vice versa.
Improving homogeneous chamber temperature of biomass dryer by automatic air controlling system Muhammad, Juandi; Krisman, Krisman
Science, Technology and Communication Journal Vol. 1 No. 3 (2021): SINTECHCOM Journal (June 2021)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v1i3.198

Abstract

Biomass dryer (BD) was a useful device to improve the time efficiency of drying activities in traditional systems. The fuel source of biomass can be obtained from agricultural wastes, such as corn cobs and coconut shells. The classic problem of BD is the inhomogeneous temperature inside the chambers, which leads to damage to the product if the air circulation is not controlled. This study utilizes an electronic controller to automatically manage airflow by a fan and open the window to obtain a homogenous temperature in each chamber. The window will be opened instantly if the temperature inside the chambers exceeding 46°C. This testing sample product is a cracker, locally called ‘krupuk’.  Cracker is made from tapioca flour and dried for several days after cutting processes. Our previous test successfully improves time efficiency in drying the post-harvest agricultural product. The proposed dryer consists of cabinet with 3 chambers, an open fire drum, a couple of automatic windows, and an electronic board as a controller. The resulting test shows a homogenous temperature average for the 3 chambers is 50°C.
One-dimensional analysis of underground water using geoelectric methods Malik, Usman; Defrianto, Defrianto; Zulfa, Zulfa; Saputra, Yohanes Dwi; Muhammad, Juandi
Science, Technology and Communication Journal Vol. 4 No. 1 (2023): SINTECHCOM Journal (October 2023)
Publisher : Lembaga Studi Pendidikan and Rekayasa Alam Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59190/stc.v4i1.252

Abstract

The regional development issues in Tambang Kampar District that are most important to solve are environmental issues related to surface water potential and limited clean water. Environmental potential through good environmental management can become potential natural resources that can be utilized to support the regional economic sector. Groundwater potential needs to be studied and interpreted in the matrix of groundwater resource management through geophysical studies, namely by using the geoelectric method. This matrix will be able to provide solutions to environmental problems with the potential for fresh water in Tambang District, Kampar, thereby supporting economic growth in terms of meeting water needs. The material that is the object of research is underground water, and the aspects of research that will be studied include clean water exploration and environmentally friendly management patterns of potential underground water resources. The research location is Tambang District, Kampar, Riau Province. The targeted finding is an environmental management model of potential underground water resources in Tambang Kampar District using the Schlumberger rule geoelectrical method. Fundamental contributions to a field of science are geophysics and environmental science disciplines related to groundwater availability.
PKM Improving the Quality and Quantity of Environmentally Friendly Smoked Fish Processing in Air Dingin Village, Bukit Raya District, Pekanbaru City Muhammad, Juandi; Gimin; Hasibuan, Saberina
Mejuajua: Jurnal Pengabdian pada Masyarakat Vol. 4 No. 2 (2024): Desember 2024
Publisher : Yayasan Penelitian dan Inovasi Sumatera (YPIS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52622/mejuajuajabdimas.v4i2.200

Abstract

Through the Community Partnership Program (PKM), an activity can be carried out to improve the quality and quantity of smoked fish production in the MINA SALAI KUARAN business group in Air Dingin Village, Bukit Raya District, Pekanbaru, Riau to become an independent coaching group through two aspects: Increasing the level of empowerment of partners in the production aspect. Still lacking, because it uses traditional methods so that the target of this activity will result in a 50% increase in production quantity. And increasing the level of empowerment of partners in the social community aspect, this is done by using online marketing and SME information via Twitter and Facebook. Meanwhile, the lecture and discussion methods for participants are carried out directly in the field by presenting direct counseling materials that also involve students in the MBKM program, then conducting a demonstration method at the Partner's place of business. The innovation of biomass energy-based Salai fish processing technology that is made uses biomass waste raw materials from tree trunks, especially rambutan trees. The PKM activity of the MINA SALAI KUARAN business group, Making Salai Fish in Air Dingin Village, Bukit Raya District, Pekanbaru, Riau, is an application of technology with the hope of providing solutions to the obstacles faced by this MITRA, including: (1) making improvements to the management of the application of technological innovations in processing aspects of production and (2) improvements in the social aspect of society through the application of an online marketing information system and promotional media through Twitter, Facebook and MITRA's business signs, which are shown by the support and willingness to work together as partners with the community service team from the Physics Department, FMIPA, University of Riau.
Inovasi Teknologi Pengolahan Ikan Salai Berbasis Energi Biomassa dengan sistim ruang pembakaran berbentuk parabola Dan Implementasinya pada UKM MINA SALAI KUARAN Di Kelurahan Air Dingin Kecamatan Bukit Raya Kota Pekanbaru Muhammad, Juandi; Gimin, Gimin; Hasibuan, Saberina
Unri Conference Series: Community Engagement Vol 6 (2024): 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.6.350-358

Abstract

Biomass energy, which comes from plants, is used as a heating source in fish processing. This community service activity is focused on the smoked fish processing industry in Air Dingin Village, Bukit Raya District, Pekanbaru, with the aim of analyzing the optimal use of biomass energy. The main source of energy is the rambutan tree trunk, which gives a distinctive aroma to smoked fish. The method used is direct training to apply new techniques in this industry, with raw materials of patin fish (30 kg) and catfish (40 kg). The smoking process takes 24 hours, producing efficient and high-quality smoked fish, seen from its bright color and fragrant aroma. This Community Partnership Program (PKM) aims to improve the quality and quantity of production of the UKM MINA SALAI KUARAN business group. It is hoped that the quantity of production will increase by 50%, while the social aspects of the community are strengthened through online marketing using social media such as Twitter and Facebook. Thus, this business has the potential to become more independent and improve the welfare of the local community.
Co-Authors Abdullah, Hewa Yaseen Adrianto Ahmad Afriyunita, Dini Alifia Putri Yasmin Amiruddin, Erwin ANDRINI, ROZI Anhar Anhar Anisa, Hijrah Septia Annisa Alqorina Antonius Surbakti Arifudin Arifudin arifudin Asih Apri Manelsa Awaludin Rakhmat Ayu Permatasari Budi Azwar Budijono, Budijono Citra Siti Fatimah Julianti Citra, Theodora Dani Ali, Nurhalim Defrianto Defrianto Devi Arvianti Dewi Kurnia Dewi Kurnia Dewi Muliana Dodi Irwan Siregar Edisar Edisar Ekwarso , Hendro Emrinaldi , Tengku Erman Taer Erwin ' Erwin Amiruddin Fanrico Sanjaya Tambunan Febrianti, Ade Fia Firdahlia Firmansyah, Restu Gimin Gimin Gimin HAMDALAH, AHMAD Hamdi, Muhammad Hendro Ekwarso Herman Herman Indah Tamara Sitorus Indra Gunawan Ira Triswiyana Irvan Rahmat Ismawan Ismawan Jasmareni Sri Kurniati Baalijas KEMAL KEMAL Krisman Krisman ' Krisman Krisman Kurniawan, Joko Lestari, Fitra Liana Zamri Listia Damayana Lysbetti Marpaung, Noveri M .Edizar ' M Ridwan Haekal Mandasari Sibarani , Oktavia Martin ' Melki Leonardo Melyna Handayani Mhd Edisar Mohamad Safrin Muh Sarkowi Muhammad Edisar Muhammad Hamdi Muhammad Hamdi Muhammmad Hamdi Muhd Fachrewa Almarsya Mutia Febri Irdayanti Nasib ' Nur Islami Pangesti, Winda Peri Ridwan Nurhedi Pertiwi, Meryati Purwoko, Agus Putra Ramadani Rahmad Sujud Hidayat Rahmalia, Anisa Rahmi Dewi Rahmi Saputri Rahmiati Rahmiati Rahmondia Nanda Setiadi Rakhmawati Farma Rany, Novita Ray Afriando Riad Syech Riduan Alvinsen Sirait Rigia Givanny Pritamara Rika Taslim Risanto, Joko Riska Fitriani Riski Febriani Rizki Fadilah Rofeah ' Rosma, Iswadi Hasyim Ruzi Andriani Saberina Hasibuan Saktioto Saktioto Salomo Salomo Sari Agriona Setiawati Setiawati Sherly Mutiara Silaban, Intan Silvia Noviana Sinuraya, Salomo Sitinjak, Tumbur Marudut Tua Sugianto ' Sulistyo Rini, Ari Sutan Saladin Suwondo Suwondo Syah, Erzan Syahril Syahril SYAIFUL BAHRI Syamsulduha ' Syamsulduha Syamsulduha Taufik Arianto Tengku Emrinaldi Tiana Rahmadani Usman Malik Usman Malik Usman Usman Yohanes Dwi Saputra, Yohanes Dwi Yugo Setiawan Yupapin, Preecha Yusni Ikhwan Siregar Yusri Yusri Zainudin Hasan Zulfa Zulfa Zulfa