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All Journal Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi Kappa Journal
Ida Bagus Made Suryatika
Program Studi Fisika, Fakultas Matematikadan Ilmu Pengetahuan Alam, Universitas Udayana, Jimbaran, Bali, 80361
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Analisa Konsentrasi Logam Cd Pada Rhizophora.Sp Menggunakan Metode AAS Di Kawasan Pelabuhan Gilimanuk Jembrana Bali Karel Yesaya Mbaba; Ida Bagus Made Suryatika; I Gusti Agung Putra Adnyana
Kappa Journal Vol 3 No 2 (2019): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v3i2.1639

Abstract

In this study, research was conducted on the analysis of Cu concentrations in mangrove plants (Rhizophora.sp) using the Atomic Absorbtion Spectrophotometry (AAS) method in the Gilimanuk Jembrana port area of Bali. The research was conducted on June 23, 2019 until July 28, 2019 in the Faculty of Mathematics and Natural Sciences, Udayana University. The method used is Atomic Absorption Spectrophotometry (AAS), a principle that is based on the process of absorption of energy by atoms that are at the level of basic energy (groundstate). The sample used is in the form of root stems and leaves of mangroves that are cleaned and destroyed in advance, because AAS can only analyze the material in the form of liquid. The results of the analysis with AAS are the Cd metal content at Gilimanuk port has exceeded the threshold of the quality standard that is in accordance with sea water quality standards according to Environmental Decree Number: KEP-MEN LH No.51 / Men KLH / 2004 Cd threshold for tourism marine is 0,002 ppm and for biota is 0,001 ppm, while mangrove is included in marine tourism with a threshold of 0,002 ppm.
ELEKTROLISIS LOGAM PERAK DARI LIMBAH PENCUCIAN FILM FOTOGRAFI I Made Sutha Negara; I Nengah Simpen; Ida Bagus Made Suryatika
Jurnal Kimia (Journal of Chemistry) Vol. 11. No. 1 Januari 2017
Publisher : Program Studi Kimia, FMIPA, Universitas Udayana (Program of Study in Chemistry, Faculty of Mathematics and Natural Sciences, Udayana University), Bali, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (219.394 KB) | DOI: 10.24843/JCHEM.2017.v11.i01.p15

Abstract

Penelitian ini bertujuan untuk menentukan kondisi optimum pemisahan logam perak dari limbah film fotografi secara elektrolisis. Elektrolisis limbah film fotografi dilakukan dengan perlakuan 4 variasi bentuk (geometri) katoda pada luasan yang sama dan 5 variasi jarak elektroda pada tegangan dan arus konstan. Pada awal dan akhir setiap elektrolisis, parameter yang diukur adalah massa katoda secara gravimetri dan kandungan perak dalam limbah diukur dengan spektrofotometer serapan atom. Hasil penelitian diperoleh bahwa pada optimasi bentuk elektroda, bentuk lempeng/plat memberikan penurunan konsentrasi yang paling tinggi (79,56% atau 0,3324 g) dibandingkan dengan katoda berbentuk silinder, balok dan prisma segi enam. Bentuk lempeng/plat dipilih sebagai elektroda dalam penentuan pengaruh variasi jarak terhadap persentase penurunan konsentrasi perak, massa perak yang menempel di katoda dan massa endapannya. Hasil variasi jarak elektroda pada katoda lempeng/plat, terbaik menunjukkan pada jarak 2 cm dengan pemisahan paling tinggi yaitu 79,99%. Perak yang dapat dipisahkan tidak seluruhnya menempel pada katoda setelah elektrolisis, melainkan perak dominan mengendap
INTENSIFIKASI LAHAN PERTANIAN MENGGUNAKAN AIR BAWAH TANAH (RENCANA PROYEK PERCONTOHAN DI SUBAK SAYEHAN JASRI KARANGASEM I N. Simpen; N. N. Ratini; I M. S. Wibawa; I. B. M. Suryatika
Buletin Udayana Mengabdi Vol 16 No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.808 KB)

Abstract

Salah satu cara yang dapat dilakukan dalam usaha intensifikasi lahan pertanian adalah mengairi sawah dengan air bawah tanah pada musim kemarau atau pada saat air sungai sudah tidak ada. Di Subak Sayehan Jasri Karangasem hendak melakukan proyek percontohan intensifikasi lahan pertanian menggunakan air bawah tanah. Tujuan dari kegiatan pengabdian kepada masyarakat ini adalah menentukan titik pengeboran untuk mendapatkan air bawah tanah yang paling efektif. Titik pengeboran dicari dengan metode geolistrik. Hasilnya telah didapatkan titik pengeboran, pada jarak 115-126 m dari pinggir jalan, diperkirakan kedalaman 13 m sudah ditemukan air, pengeboran direkomendasikan sampai kedalaman 25 m.
PENINGKATAN PEMAHAMAN PELAJARAN MATEMATIKA TINGKAT SMA DENGAN PEMROGRAMAN PASCAL DI SMAN 1 KUTA SELATAN BADUNG I.D.M.B.A. Darmawan; I.K.A. Mogi; I.W. Sumarjaya; I.B.M. Suryatika
Buletin Udayana Mengabdi Vol 16 No 3 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (469.409 KB)

Abstract

Pemrograman pascal digunakan untuk menyelesaikan masalah Matematika yang diajarkan pada Siswa SMA sesuai dengan kurikulum yang diajarkan.Pendekatan pelatihan ini memiliki tiga manfaat utama, yaitu: 1) memberikan pengetahuan dan pengalaman kepada siswa SMA terhadap bahasa pemrograman pascal sehingga dapat mempersiapkan diri untuk mengikuti kompetisi-kompetisi yang rutin diselenggarakan oleh Pemerintah dalam Olimpiade Sains Nasional (OSN) atau pun tingkat Regional yang tiap tahun diselenggarakan oleh Universitas Udayana, 2) peningkatan pemahaman materi pelajaran Matematika dengan pendekatan bahasa pemrograman pascal. Bahasa pemrograman melatih siswa untuk dapat berpikir terstruktur dan sistematis. Oleh karena itu, jika siswa telah mampu menyelesaikan masalah Matematika dengan bahasa pemrograman, siswa tersebut sudah benar-benar paham mengenai teknik pemecahan masalah sesuai dengan topik materi yang diberikan. 3) Memberikan alternatif teknik pengajaran yang berbeda kepada Guru Matematika SMA dalam pengajaran menggunakan bahasa pemrograman, dimana pemrograman komputer sangat erat kaitannya dengan pelajaran Matematika. Pembinaan dihadirkan oleh guru pengampu pelajaran Matematika dan 20 orang siswa. Pembinaan dilakukan selama 4 kali pertemuan dimana setiap pertemuan dilakukan selama 3 jam. Materi yang diberikan meliputi logika informatika dan dasar pemrograman sampai dengan penyelesaian maslaah matematika dengan pemrograman komputer menggunakan bahasa pemrograman Pascal. Setiap pertemuan dilakukan tes diawal dan diakhir yang memperlihatkan kemampuan siswa dalam menyerap materi. Hasil post test memperlihatkan siswa mampu lebih memahami materi matematika setelah mendapatkan pembinaan dalam hal pemrograman komputer sesuai dengan topik yang didiskusikan.
PELATIHAN TEKNOLOGI FERMENTASI KOMBINASI FESES SAPI DAN BABI DALAM DIGESTER MOBILE SEBAGAI UPAYA PRODUKSI BIOENERGI ALTERNATIF Suryatika Suryatika; R. Dalem; N. Simpen; N. S. Miwada
Buletin Udayana Mengabdi Vol 10 No 1 (2011): Volume 10 No.1 – April 2011
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (162.062 KB)

Abstract

Has done community service in order to provide the knowledge and skills to members of a group of cattle in the village of Pengotan, Bangli about how processing cow manure and pig waste into biogas, as an environmentally friendly alternative energy. Method of activities with demoplot how to create installations, mobile digester, which is a fermentation tank where the cow and pig feces to produce biogas (bioenergy) is ready to use. The group of farmers who participated in the training activities of household-scale biogas production is very enthusiastic follow until the end. Almost 100% of participants acknowledged that mobile digester offered as a place of production of biogas can be accepted and become the solution of cultural problems that have been developed in rural areas Pengotan.
Penentuan Dosis Efektif Organ at Risk terhadap Penyinaran Kepala dengan Pesawat CT-Scan Merek Siemens 128 Slice di RSUP Sanglah Denpasar Shatriani Wulandary Sipul; Ida Bagus Made Suryatika; I Wayan Balik Sudarsana
Kappa Journal Vol 6 No 2 (2022): Desember
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v6i2.6389

Abstract

Research has been carried out on determining the effective dose of organ at risk for head irradiation using a Siemens 128 slice CT-Scan at Sanglah Hospital, Denpasar. The data used in this study are secondary data from medical records or CT-Scan archives irradiating the head, namely CTDIVOL and DLP data for male and female patients aged 26-45 years. This study aims to determine the amount of DE and Deff received by male and female patients and to determine the feasibility of using CT-Scan in the installation. The DE value for the head section is obtained by multiplying the DLP value by the conversion factor (k). The DE analysis in the head was carried out using the standard value of the Regulation of the Head of Bapeten No. Rek: LT/STI/KN 01/P2STPFRZR1/077/2016, while Deff is obtained from the CTDIVOL value multiplied by Wt. The results of the calculation of Deff received by male patients were 0.51 ± 0.01 mGy and female patients were 0.48 ± 0.01 mGy. The results of the DE calculation for male patients were 2.38 ± 0.08 mGy and female patients were 2.28 ± 0.08 mGy. The result of the head DE calculation according to BAPETEN guidelines is 2.94 mGy. Based on the results of the DE calculation on the head, the DE value is still within the normal limits issued by the BAPETEN guidelines so that the Siemens 128 Slice CT-Scan in the installation is still suitable for use for CT-Scan examination of the head.
Analisis Peak Ground Accerelation (PGA) di Kabupaten Karangasem Menggunakan Pendekatan Empiris Masitah, Siti; Sukarasa, I Ketut; Dedy Pratama, I Putu; Yuliara, I Made; Suryatika, Ida Bagus Made; Kasmawan, I Gde Antha
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.v9i1.28647

Abstract

Kabupaten Karangasem merupakan bagian dari busur kepulauan Sunda Kecil yang terbentuk akibat proses subduksi lempeng Indo-Australia kebawah lempeng Eurasia sehingga menyebabkan daerah tersebut rawan bencana gempabumi. Penelitian ini bertujuan untuk menentukan nilai peak ground acceleration (PGA) di Kabupaten Karangasem menggunakan rumus empiris terpilih. Data yang digunakan adalah data skunder yang diperoleh dari alat accelerograph tahun 2019-2023 dan data dari katalog BMKG tahun 1972-2022. Dalam menentukan nilai PGA digunakan metode empiris Donovan (1973), Esteva (1970), Mc.Guirre (1963), Fukushima Tanaka (1990), Setiawan (2012). Pada hasil penelitian menunjukkan bahwa rumus empiris Donovan cocok untuk diterapkan di Kabupaten Karangasem. Kabupaten Karangasem bagian timur memiliki tingkat bahaya bencana gempabumi paling besar dengan skala Intensitas VI MMI mencakup Kecamatan Karangasem dan Kecamatan Abang dengan nilai PGA tertinggi yaitu 96 gals.
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.
Penentuan Dosis Efektif Pada Abdo Pelvis dan Organ Kritis dari Hasil Penyinaran Computed Tomography Scanner (CT Scan) Oktar Mahardika, I Gusi Putu Gede; Suryatika, Ida Bagus Made; Putra, I Ketut; Irhas, Rozi
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.v7i2.7676

Abstract

Determination of the effective dose on the abdo pelvis and organs at risk has been carried out from the results of the CT Scan irradiation at Sanglah General Hospital.The study began by collecting secondary data from the results of an abdominal CT scan, namely the CTDIvol and DLP values. Then the data was grouped based on gender of 40 patients with an age range of 20-70 years. The value of the effective dose in the abdo pelvis is obtained by multiplying the DLP value and the conversion coefficient k. While the effective dose to organs at risk is obtained from the product of the CTDIvol and wt. The results of the effective dose in the abdo pelvis were obtained in the range of 4.596-6.738 mSv for male patients while for female patients it was 4.209-5.232 mSv. The results of the effective dose in the abdo pelvis are still at the threshold set by BAPETEN, which is 13.275 mSv, so the CT scan is still suitable for use. Average effective dose values for critical organs were 0.2882 mSv for the liver, 0.8646 mSv for the kidney, and 0.5764 mSv for the gonad. The highest dose was received by the gonads. This shows that the gonads are the organs that have the highest sensitivity in receiving radiation doses in the abdo pelvis
Pengaruh Sinar Ultraviolet Terhadap Jamur Aspergillus Niger Ayu Ratnawati, I Gusti Agung; Putra, I Ketut; Suryatika, Ida Bagus Made; Sutapa, Gusti Ngurah; Trisnawati, Ni Luh Putu
Kappa Journal Vol 7 No 1 (2023): April
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/kpj.v7i1.12252

Abstract

Along with the development of science and technology, some researchers try to apply knowledge to several biological systems to obtain benefits that can be used. One of them is the use of ultraviolet light to kill the fungus Aspergillus niger. In addition, ultraviolet rays are also used in various fields of the drinking water industry, food, and also for sterilizing operating rooms in hospitals. A method used in this problem is the cork borer method. Data were obtained by measuring the diameter of the inhibition zone of the Aspergillus niger fungus. The results of this study were obtained at the intensity of 12.30 lux and at a distance of 15cm, within 15 minutes of irradiation time, the maximum death of the fungus Aspergillus niger was 40.74%.
Co-Authors A.A. Ngurah Gunawan Adnyana, I Gusti Agung Putra Anak Agung Intan Rahmasari Asni Mulyati Jeni Ayu Ratnawati, I Gusti Agung Cory Amelia Daniel Happy Putra Dedy Pratama, I Putu Gusti Ngurah Sutapa Helena Idah I Gde Antha Kasmawan I Ketut putra, I Ketut I M. S. Wibawa I Made Sutha Negara I Nengah Sandi I Nengah Simpen I Nyoman Sumerta Miwada I Wayan Balik Sudarsana I Wayan Putu Sutirta Yasa I Wayan Supardi I.D.M.B.A. Darmawan I.K.A. Mogi I.W. Sumarjaya Ida Bagus Alit Paramarta Ida Bagus Putra Manuaba Irhas, Rozi Karel Yesaya Mbaba Lailatul Nuzzulul Safitri Made Sumadiyasa Ni Kadek Nova Anggarani Ni Nyoman Rupiasih Ni Nyoman, Ratini Nurmalasari, Ni Putu Yuni Nyoman Wendri Nyoman Wendri Oktar Mahardika, I Gusi Putu Gede Poniman, S. Poppy Intan Tjahaja R. Dalem Rio Saputra Saputri, Izza Wahyu Saputri Selvi Marcellia Shatriani Wulandary Sipul Silalahi, Dio Carpry Gunawan Sukarasa, I Ketut Trisnawati, Ni Luh Putu Widagda, I Gusti Agung Yuliara, I Made