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All Journal Buletin Udayana Mengabdi Jurnal Ilmu Dasar Jurnal Sains Materi Indonesia Jurnal Neutrino : jurnal fisika dan aplikasinya Journal of Mathematical and Fundamental Sciences Jurnal Penelitian Pendidikan IPA (JPPIPA) Kappa Journal Jurnal Fisika Indonesia
Made Sumadiyasa
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Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Mathematics Physics Other

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Journal : Kappa Journal

 1 
Sistem Pendeteksi Banjir Berbasis Sensor Ultrasonik Hc-Sr04 Dan Modul Esp8266-12e Dengan Media Komunikasi Telegram Dan Buzzer Hanan Hanan; Anak Agung Ngurah Gunawan; Made Sumadiyasa
Kappa Journal Vol 5 No 1 (2021): Juni
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v5i1.1622

Abstract

It has been designed the water surface level detection system based on the ultrasonic sensor HC-SR04 and the ESP8266-12E module through telegram and  buzzer  communication  media..  The  research  aims  to  design  a    water surface-level detection system by using ultrasonic sensors and the ESP8266-12E  module. The tools and materials used  during the design  are:   Ultrasonic sensors HC-SR04, module ESP8266-12E, and buzzer as an output to sound the alarm. The ultrasonic HC-SR04 sensor will detect the water surface level,    the detection data will be sent to the ESP8266-12E module, then the system will send the information in the form of a message through telegram and buzzer application.  The  messages  delivered  are  several  stages  including  standby, alert,  and  danger.  The  methods  used  in  this  design  are  planning,     study libraries,  collection  of  tools  and  materials,  hardware  plan,  and    program creation on the software. The final result is a system capable of detecting water surface level based on the ultrasonic sensor  HC-SR04 and the    ESP8266-12E module through telegram and buzzer communication media. The success    rate of this tool system at several stages among others at a standby of 77%, at a level of alert of 70%, and the level of success at the hazard level is 83%. 
Studi Dosis Radiasi Berkas Foton Energi 6 MV dan 10 MV Terhadap Nilai HI dan CI pada Kasus Kanker Serviks Menggunakan Teknik Intensity Modulated Radiation Therapy (IMRT): - Sutapa, Gusti Ngurah; I Wayan Suarya; Wayan Balik Sudarsana; Ida Bagus Made Suryatika; Made Sumadiyasa; I Gusti Agung Widagda
Kappa Journal Vol 8 No 3 (2024): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v8i3.27385

Abstract

Penelitian ini menganalisis distribusi dosis radiasi foton 6 MV dan 10 MV pada pasien kanker serviks menggunakan teknik Intensity Modulated Radiation Therapy (IMRT). Tujuan penelitian adalah untuk mengevaluasi keseragaman dosis dan kecocokan dosis pada Planning Target Volume (PTV) dengan menggunakan Homogeneity Index (HI) dan Conformity Index (CI). Sampel penelitian terdiri dari 10 pasien kanker serviks yang dirawat di RSUP Prof. I G. N. G. Ngoerah Denpasar. Dosis yang diterima pasien dianalisis menggunakan Dose Volume Histogram (DVH) untuk masing-masing energi foton. Hasil menunjukkan bahwa rata-rata HI untuk energi 6 MV adalah 0,0817 dan untuk 10 MV adalah 0,0803, sementara CI untuk 6 MV dan 10 MV masing-masing adalah 0,9556 dan 0,9701. Nilai HI dan CI yang dihasilkan sesuai dengan standar ICRU Report 83, yang menunjukkan distribusi dosis yang seragam dan efektif pada PTV. Temuan ini mengindikasikan bahwa kedua energi foton dapat memberikan distribusi dosis yang optimal, dan pemilihan energi dapat disesuaikan dengan kebutuhan klinis tanpa mengurangi kualitas terapi.
Analisis Distribusi Dosis Radiasi terhadap Perencanaan Radioterapi Menggunakan Metode Segmentasi Citra pada Kasus Tumor Otak dengan Teknik Intensity Modulated Radiation Therapy (IMRT) Saputri, Izza Wahyu Saputri; Suryatika, Ida Bagus Made; Amelia, Cory; Sandi, I Nengah; Sumadiyasa, Made; Widagda, I Gusti Agung; Irhas, Rozi
Kappa Journal Vol 9 No 1 (2025): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v9i1.29562

Abstract

A study has been conducted on the effect of the number of segments on the radiation dose distribution of photon beams in brain tumor cases using the Intensity Modulated Radiation Therapy (IMRT) technique. This study used 20 primary data and 10 secondary data from brain tumor patients with 6 MV photon beams and a total dose of 6000 cGy. Calculations were performed by analyzing the Homogeneity Index (HI) and Conformity Index (CI) values as well as the radiation dose to the Organs at Risk (OAR), followed by statistical testing. Based on the conducted research, the results showed that HI and CI values for 5, 10, and 15 segments were different. For example, the HI value for 5 segments was more homogeneous, approaching 0, and the CI value for 10 segments was closer to 1, which indicates a better match with the PTV shape. The average maximum dose distribution for OARs with 5 segments in the brainstem, chiasma, left eye, right eye, left lens, and right lens were 4541.9 cGy, 3893.8 cGy, 2754.2 cGy, 2516.1 cGy, 740.8 cGy, and 628.0 cGy, respectively. With 10 segments, the doses for these OARs were 4104.2 cGy, 3633.9 cGy, 2583.9 cGy, 3124.2 cGy, 710.5 cGy, and 625.5 cGy, respectively. With 15 segments, the doses for the same OARs were 4123.0 cGy, 3956.2 cGy, 2753.3 cGy, 2433.7 cGy, 667.7 cGy, and 547.8 cGy, respectively. All maximum dose distributions for the OARs received by the patients were still within the tolerance limits stated in the Radiation Oncology A Question-Based Review 2nd Edition.
Perbandingan Metode Peluruhan untuk Memperkirakan Berakhirnya Gempabumi Susulan (Studi Kasus Gempabumi Signifikan di Wilayah Bali Tahun 2019-2020) Soleh, Anggun Mohamad; Sukarasa, I Ketut; Gunawan, Tomy; Suarbawa, Komang Ngurah; Sumadiyasa, Made; Anggarani, Ni Kadek Nova
Kappa Journal Vol 7 No 2 (2023): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i2.20743

Abstract

An Data collection and processing has been carried out to compare the aftershock decay method which aims to determine the assumption of aftershock ending time, how much energy, fracture length and fracture velocity occurred on the island of Bali. Data processing using several methods, namely the Omori method, the Mogi method I, the Mogi II method, and the Utsu method. The data used is based on the BBMKG Region III Denpasar earthquake catalog book, that’s is case of the Buleleng earthquake on November 14 2019, the Jembrana earthquake on July 16 2019 and the South Kuta earthquake on March 19 2020. Based on the results of data processing, for the Buleleng earthquake case the method closest to the observations was the Mogi II method with the energy is 1012 joules, the fracture length is 1.186 m and the fracture speed is 29.78 m/s. As for the Jembrana and South Kuta earthquake cases, the results of the calculation of all methods have not come close to the observations. The magnitude of the energy, the length of the fracture and the fracture speed of the Jembrana earthquake is 3.562313 joules, 32.733 m, 327.330 m/s. Whereas for the South Kuta earthquake, the energy, fracture length and fracture velocity were 3.162317 joules, 125.890 m, 70.750 m/s
Identifikasi Pencemaran Air Lindi pada Kawasan Asrama di Kampus Universitas Udayana dengan Menggunakan Metode Geolistrik Konfigurasi Wenner Pratama, Maulana Rizki; Putra, I Ketut; Nurmalasari, Ni Putu Yuni; Sumadiyasa, Made; Sandi, I Nengah; Baskoro, Winardi Tjahyo
Kappa Journal Vol 7 No 2 (2023): Agustus
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i2.20842

Abstract

Dormitory land in the Udayana University area is often used as a place to dispose of garbage. Basically leachate contains metal content such as zinc (Zn) and mercury (Hg) which seep into the soil. Identification to determine the presence of leachate at a certain depth, can use the Wenner Configuration Geoelectrical Method. From the data obtained then processed using Res2dinv it was found that the leachate content in the Udayana University Dormitory Area is found at a distance of 33m, 43m, 63m, 83m, from the pile of garbage and a depth of 1.25 - 3.75m below the surface of the pile of garbage for coordinates 115.165240 BT, 8.798640 LS to 115.164955 BT, 8.799100 LS and a distance of 62m, 72m, 82m, from the garbage pile and a depth of 1.25 – 6.38m below the surface of the garbage pile at coordinates 115.165091 BT, 8.798557 LS to 115.164730 BT, 8.799021 LS.
Co-Authors A. A. Ngr. Gunawan A. A. Ngurah Gunawan Angelia Bella Kusumaningtyas Asni Mulyati Jeni Baskoro, Winardi Tjahyo Cory Amelia Dewa Ayu Sukma Pranastia Fahik, Gracia Paula G. Agus Permana Putra Sujana Gunawan, Tomy Gusti Ngurah Sutapa Gusti Ngurah, Sutapa Hanan Hanan Hery Suyanto I B Sujana Manuaba I G A. Putra Adnyana I G. A. Widagda I Gde Antha Kasmawan I Gede Astina I Gusti Agung Ayu Ratnawati I Ketut Putra I Ketut putra, I Ketut I Komang Wahyu Surya Permana I Nengah Artawan I Nengah Sandi I Wayan Suarya I.B.S. Manuaba Ida Ayu Putu Inten Gayatri Ida Bagus Made Suryatika Ida Bagus Made Suryatika Ida Wisnu Sari IGA Putra Adnyana Irhas, Rozi Isnaeni Isnaeni K. N. Suarbawa K. N. Suarbawa Komang Ngurah Suarbawa Maulida Nirwana Islami Muna Alfira Ni Kadek Gita Hari Yanti Ni Kadek Gita Hari Yanti Ni Kadek Nova Anggarani Ni Made Rasmini Ni Nyoman Putri Windari Ni Nyoman Rupiasih Ni Wayan Eri Sandriani Nurmalasari, Ni Putu Yuni Nyoman Wendri Nyoman Wndri P. B. Vidyasagar P. Suardana Pratama, Maulana Rizki Putra Adnyana, IGA Putu Erika Winasri Putu Ika Paramitha Putri Saputri, Izza Wahyu Saputri Septiana Ribka Purnomo Soleh, Anggun Mohamad Sukarasa, I Ketut Wayan Balik Sudarsana Wayan Gede Suharta Widagda, I Gusti Agung Windarjoto Windarjoto Wolfharditia Oktaviana Nita