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All Journal Techno.Com: Jurnal Teknologi Informasi TELKOMNIKA (Telecommunication Computing Electronics and Control) Bulletin of Electrical Engineering and Informatics PROSIDING CSGTEIS 2013 JURNAL PENELITIAN SAINTIKA EMITTER International Journal of Engineering Technology JOIV : International Journal on Informatics Visualization JURNAL MEDIA INFORMATIKA BUDIDARMA Jurnal Biologi Tropis Martabe : Jurnal Pengabdian Kepada Masyarakat INTEK: Jurnal Penelitian Jurnal Mantik Jurnal Informatika dan Rekayasa Elektronik Jurnal Pembelajaran dan Biologi Nukleus Best Journal (Biology Education, Sains and Technology) JURNAL PIONIR Indonesian Journal of Electrical Engineering and Computer Science GUYUB: Journal of Community Engagement Bioscientist : Jurnal Ilmiah Biologi Prosiding University Research Colloquium Biocaster : Jurnal Kajian Biologi BIO-CONS: Jurnal Biologi dan Konservasi
Tri Harsono
Politeknik Elektronika Negri Surabaya
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences Other

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Classification and Risk-Mapping of River Water Quality in Surabaya with Semantic Visualitzation Miko, Taufan Radias; Harsono, Tri; Barakbah, Aliridho
EMITTER International Journal of Engineering Technology Vol 7 No 2 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v7i2.393

Abstract

River water pollution is one of the environmental problems that occur in Surabaya. The amount of industrial waste and household waste makes Surabaya River water easily polluted every day, besides that there are also many people who are not aware about the quality of river water in Surabaya. In this paper, we present a new system to classify water quality of river in surabaya. The system involve a semantic visualization of risk-mapping for the river, so that the people of Surabaya are easier to get information about the quality of Surabaya River water. In this paper, we measured the water quality of Surabaya River using Horiba sensor measuring instruments using 5 parameters, namely temperature, PH, DO, Turbidity, TDS. These five parameters are input variables for calculating water quality with the methods applied in this research. We use the Storet Method to determine the quality of Surabaya River water. The results of the Storet Method explained that there were 0.03% of the data on lightly polluted water quality and there were 37.41% of the data being moderately polluted and there were 59.29% of the data heavily polluted. The results of the calculation using the Storet method concluded that the condition of Surabaya River water quality was not good. We also apply the rule of the Storet Method to the Neural Network by using Surabaya River water quality data as learning data and gave performance 70.02% accuracy.
Spatio-Temporal Associative Mining for Earthquake Data Distribution in Indonesia Edelani, Renovita; Barakbah, Aliridho; Harsono, Tri
EMITTER International Journal of Engineering Technology Vol 7 No 2 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v7i2.428

Abstract

Indonesia is a country that has the highest seismically activity in the world. This country has really high earthquake frequency because of it traversed by three plate meeting plate and located in Ring of Fire area. The shaking events from an earthquake are very strong and propagate in all directions, capable of destroying even the strongest civilian buildings, so there is no doubt that there are many victims of human lives. The other facts, earthquake in Indonesia have seismic relation between the provinces. In this paper, we present a new earthquake Spatio-temporal mapping system based on the association confidence value from the result of associative mining process on earthquake data distribution in Indonesia. The system proposed three main functions which are (1) Data Acquisition which taken from four data provider, then preprocess and combine it become one, (2) Associative Mining process to get the rule of association earthquake between provinces in Indonesia, and (3) Earthquake Association Spatio-Temporal Model from the highest confidence value and Visualization. We use data from several earthquake data providers from 1900 until 2018. To perform our proposed Spatio-temporal earthquake association mapping system, we divided the data to become a 5-year discrete partition. After that, we mining the rule and get the highest confidence value from each period. This confidence value is used for modeling and visualization of our Spatio-temporal mapping system. As a result of this study, we manage to generate earthquake association risk mapping from 13 provinces that had earthquake connectivity between each other. The provinces are Aceh, Sumatera Utara, Bengkulu, East Java, Bali, NTB, NTT, Maluku, North Maluku, Gorontalo, North Sulawesi, Papua dan West Papua.
Fire Image Set for Evoking Panic sabilirrasyad, Iqbal; Basuki, Achmad; Harsono, Tri
EMITTER International Journal of Engineering Technology Vol 8 No 2 (2020)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v8i2.504

Abstract

Fire is the closest disaster to us, a person who put cigarettes around flammable objects could burn one to dozens of houses. The last thing that happens was a mass panic. In this kind of situation, panic is one of the keys to determine how much probability someone will survive. However, detecting someone's panic during a fire is impossible. This leads some scientists to assume that mass panic was never happening and some studies use simple functions to determine someone when panic. Currently, thanks to technological advances we can easily build virtual worlds that resemble real events. To build a virtual world that could evoke panic we still need the right stimulus. In this paper, we will discuss with terms of fire disaster stimulus that possible to impel someone to feel panic. While some stimulus datasets that already exist have more broad categories, we wanted to focus on a specific problem. The determined parameters are considered through several elements that could cause a person to panic, either before or during a fire. By using the Self-Assessment Manikin system to obtain valance and arousal matrix, we conduct a test to see how much influence the fire categories stimulus provided.
Sorus Characteristics of Ferns (Pteridophyta) in Green Open Spaces at Medan State University Ritonga, Yusran E.; Hardiansyah, Dadang; Harsono, Tri
Jurnal Biologi Tropis Vol. 26 No. 1 (2026): Januari-Maret
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v26i1.10895

Abstract

The green open spaces of Medan State University play a role in biodiversity and ecology. Data collection of fern (Pteridophyta) species in the sporophyte phase and characterization of their sori have not been previously reported, so scientific data collection and presentation are needed. The research method used to obtain data is exploratory. Each fern found was documented and collected for herbarium purposes and detailed sorus observation. Twelve fern species from 7 families were identified: Aspleniaceae, Athyriaceae, Davalliaceae, Nephrolepidaceae, Polypodiaceae, Pteridaceae, and Thelypteridaceae. Of the species found, it was noted that they have terrestrial, epiphytic, and terrestrial/epiphytic life forms. Each species has sori located under the leaf surface, except for Davallia denticulata (Burm.f.) Mett. which is at the leaf tip. The position of the sori is parallel to the leaf veins, between the leaf veins, on the leaf margin, and close to the leaf margin. The sori are brown, light brown, reddish brown, gray, and green. This fern has eight sori, each with an annulus. This sori characteristic differentiates and identifies the type of fern. Pteridophytes in the green open spaces of Medan State University play a role as pioneers, builders of biodiversity and ecosystems, and sources of knowledge, food, and medicine. These findings will serve as a source of scientific knowledge and a basis for characterizing sori elsewhere.
Pengaruh Pemberian Pupuk Taspu Terhadap Pertumbuhan Dan Produksi Biomassa Tanaman Seledri (Apium graveolens L.) Pada Berbagai Konsentrasi Purba, Gideon Marulitua; Harsono, Tri
BEST Journal (Biology Education, Sains and Technology) Vol 9, No 1 (2026): Juni 2026
Publisher : Program Studi Pendidikan Biologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30743/best.v9i1.13063

Abstract

Tujuan penelitian ini adalah untuk menemukan kadar kompos yang optimal dan mempelajari pengaruh kompos Tandan Buah Kosong (EFB) Kelapa Sawit Taspu terhadap perkembangan dan produksi seledri (Apium graveolens L.). Lima perlakuan digunakan dalam penelitian ini, masing-masing dengan empat ulangan: P0 (kontrol), P1 (1,5 kg/pot), P2 (2 kg/pot), P3 (2,5 kg/pot), dan P4 (3 kg/pot). Desain yang digunakan adalah Rancangan Acak Lengkap (CRD). Berat segar akar, berat kering akar, tinggi tanaman, jumlah daun, dan berat segar merupakan beberapa data yang diukur. Kondisi paling optimal untuk perkembangan tanaman seledri terlihat ketika 3 kg/pot (P4) kompos EFB Taspu diaplikasikan. Dengan perlakuan P4, tanaman mencapai titik tertinggi pada ketinggian 41,63 cm, memiliki jumlah daun terbanyak yaitu 94, berat basah tertinggi yaitu 43,93 g, berat kering tertinggi yaitu 7,95 g, berat basah tertinggi yaitu 3,21 g, dan berat kering terbesar yaitu 0,81 g.
Co-Authors Achmad Basuki Achmad Basuki Adha Putra, Chairunas Afifah, Izza Nur Ahmad Basuki Al Islami, M Tafaquh Fiddin Ali Ridho Barakbah Alimudin, Akhmad Amang Sudarsono, Amang ANJANING KUSUMA MARPAUNG, DWI RATNA Arna Fariza Bima Sena Bayu Dewantara Brian Wasita Calvin Alfa Roji Dadet Pramadihanto David Fahmi Abdillah Dia Bitari Mei Yuana Dono Indarto Edelani, Renovita Farah Devi Isnanda Hamida, Silfiana Nur Hardiansyah, Dadang Hasairirr, Ashar Hasruddin Herbert Sipahutar, Herbert Huda Panggabean, Nurul Huda, Achmad Thorikul Idris Winarno Indah Yulia Prafitaning Tiyas, Indah Yulia Prafitaning Iqbal Sabilirrasyad Ira Prasetyaningrum Irene Erlyn Wina Rachmawan, Irene Erlyn Wina Irwansyah Irwansyah iwan Syarif Jamilatul Badriyah Kharismadhany, Ekky Kusuma, Dedy Hidayat Lestari, Sri Ratna Louis Nashih Uluwan Arif Maretha Ruswiansari, Maretha Maysarah, Maysarah Miko, Taufan Radias Mirza Ghulam Rifqi Mirza Ghulam Rifqi Moch. Rochmad Mohammad Nur Shodiq Mohammad Nur Shodiq Mohammad Nur Shodiq, Mohammad Nur Mu'arifin, Mu'arifin Muarifin ., Muarifin Muarifin Muarifin Nailus Sa'ada nasution, Muhammad Yusuf Ningtiyas, Sri Kandi Atma Pasaribu, Ramatio Purba, Gideon Marulitua Rachmawati, Oktavia Citra Resmi Renovita Edelani Ritonga, Yusran E. Ritonga, Yusran Efendi Riyanto Sigit Rizal Mukra Rohmah, Etik Ainun Roziqin, Mochammad Choirur Roziqin, Mochammad Choirur Rudi Kurniawan Sa'ada, Nailus Samsul Huda Samsul Huda Sesulihatien, Wahjoe Tjatur Setiawardhana, Setiawardhana Shafwan S. Pulungan, Ahmad Shiori Sasaki Sihaloho, Terry Williem Siregar, Putri Febiola Son Kuswadi Suci Rahmawati, Suci Susanti, Puspasari Tessy Badriyah, Tessy Ulfa Nuzalifah, Yossie Wahjoe Tjatur S. Wahjoe Tjatur Sesulihatien Wahyu Widodo Widodo, Edi Wahyu Widya Arwita Wina Rachmawan, Irene Erlyn Wina Rachmawan, Irene Erlyn Wiratmoko Yuwono Yasushi Kiyoki