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All Journal Jurnal Kimia (Journal of Chemistry) Buletin Udayana Mengabdi BULETIN FISIKA Kappa Journal
Ida Bagus Made Suryatika
Program Studi Fisika, Fakultas Matematikadan Ilmu Pengetahuan Alam, Universitas Udayana, Jimbaran, Bali, 80361
Astronomy Chemistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Environmental Science Materials Science & Nanotechnology Physics Other

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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.
PENYERAPAN COBALT-60 DARI AIR OLEH TANAMAN KIAPU (Pistia stratiotes L.) Lailatul Nuzzulul Safitri; Poppy Intan Tjahaja; Ida Bagus Made Suryatika
BULETIN FISIKA Vol 16 No 2 (2015): BULETIN FISIKA
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Has conducted research Cobalt-60 radionuclide uptake by plants kiapu (Pistia stratiotes L.) found in many waters. The purpose of the study was to determine the value of the transfer factor on plant kiapu to Cobalt-60 in water. The study was conducted by growing plants on media kiapu gutter water in pots with the height 35 cm and diameter 11,5 cm containing Cobalt-60. The amount of Cobalt - 60 is absorbed and accumulated by the plant parts, i.e. roots and leaves, was observed by measuring the activity of Cobalt - 60 in the parts of the plant using a gamma spectrometer. Value of the transfer factor is determined by comparing the concentration of Cobalt-60 plants accumulated against its concentration in water. From this research, the highest transfer factor values obtained approximately 8000 ml/g in the roots. The value of the transfer factor of more than 1 ml/gr indicates that kiapu is a plant that has the ability to accumulate radionuclides Cobalt-60.Keywords : absorption, Cobalt-60, kiapu, transfer factor
Effect of Sintering Temperature on Formation of Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d Compounds Asni Mulyati Jeni; Made Sumadiyasa; Ida Bagus Made Suryatika
BULETIN FISIKA Vol 24 No 1 (2023): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2023.v24.i01.p02

Abstract

Research has been conducted variations in sintering temperature between 900 ºC – 950 ºC for 12 hours on the synthesis phase of Gd1Ba2Cu3O7-d substituted La and Sr with stoichiometric composition Gd0.95La0.05Ba1.95Sr0.05Cu3O7-d. This study is intended to find out at what temperature the compound Gd0.95La0.05Ba1.95Sr0.05Cu3O7-d can be formed to the maximum. Samples with composition Gd0.95La0.05Ba1.95Sr0.05Cu3O7-d made from the raw materials Gd2O3, La2O3, BaO, Sr2O3 and CuO. Samples are synthesized using solid-state reaction method by wet mixing with nitric acid (HNO3) as solvent. The sample is sintering in the form of pellets in the furnace without annealing of oxygen gas. The synthesis results were characterized by X-Ray Diffraction (XRD) and analyzed with the Match-3 Program. By using the Entry number 96-153-9606, the results of it analysis showed that sintering temperature had an impact on the formation of phase compounds Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d. Show that the volume fraction is increases with increasing of the sintering temperature, especially from temperatures of 930 ºC to 950 ºC. The highest volume fraction of 75.43% was obtained in samples that sintering at 950 ºC. Refinement results with Rietveld analysis method showed phase Gd0.95La0.05Ba1.95Sr0.05Cu3O7-d formed is in orthorhombic symmetry. The volume of cell units is likely to increase as the temperature increases. Abstrak Telah dilakukan penelitian variasi suhu sintering antara 900 ºC - 950 ºC selama 12 jam pada sintesis fase Gd1Ba2Cu3O7-d tersubstitusi La dan Sr dengan komposisi stoikiometri Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d. Penelitian ini bertujuan untuk mengetahui pada suhu berapa senyawa Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d dapat terbentuk secara maksimal. Sampel dengan komposisi Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d dibuat dari bahan awal Gd2O3, La2O3, BaO, Sr2O3 dan CuO. Sampel disintesis dengan menggunakan metode reaksi padatan (solid-state reaction) dengan pencampuran basah (wet-mixing) dengan asam nitrat (HNO3) sebagai pelarut. Sampel disintering dalam bentuk pelet di dalam tungku tanpa pemberian annealing gas oksigen. Sampel hasil sintesis dikarakterisasi dengan X-Ray Difraction (XRD) dan dianalisis dengan Program Match-3. Dengan menggunakan referensi Entry number 96-153-9606, hasil analisisnya menunjukkan bahwa suhu sintering adalah berdampak terhadap pembentukan senyawa fase Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d. Memperlihatkan bahwa fraksi volume bertambah seiring dengan bertambahnya suhu sintering, terutama pada suhu 930 °C sampai dengan 950 °C. Fraksi volume tertinggi sebesar 75,43 % didapat pada sampel yang disintering pada suhu 950 °C. Hasil refinemen dengan metode analisis Rietveld menunjukkan fase Gd0,95La0,05Ba1,95Sr0,05Cu3O7-d yang terbentuk adalah dalam simetri ortorombik. Volume unit sel adalah cenderung meningkat seiring bertambahnya suhu sintering.
Analisis Jaringan Kanker Serviks Menggunakan Spektroskopi Raman Rio Saputra; Ida Bagus Made Suryatika; Nyoman Wendri
BULETIN FISIKA Vol 24 No 2 (2023): BULETIN FISIKA August Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2023.V24.i02.p06

Abstract

Cervical cancer tissue analysis has been carried out using Raman Spectroscopy. The purpose of this study was to determine the effect of differences in power level and exposure time on the Raman spectrum pattern and to determine the power level and exposure time that can be used as a standard to distinguish normal and cancer cervical tissue spectrum patterns. This study used histological preparations of cancerous and normal cervical tissue. The preparations were made in the Anatomical Pathology Laboratory of Sanglah Hospital and the Bali Branch of the Indonesian Cancer Foundation. Samples were treated with power levels of 300 and 400 mW, with exposure times of 3000 and 4000 ms at a wavelength of 1064 nm. The resulting spectrum is then analyzed to be used as a standard in differentiating the spectrum pattern of normal and cancerous cervical tissue. Raman spectroscopy analysis with power levels of 300 and 400 mW on cervical tissue resulted in differences in intensity and shift in wave number. The maximum intensity difference is 0.211 au and the wavenumber shift is 7.257 cm-1. Analysis of cervical tissue using Raman Spectroscopy with exposure times of 3000 and 4000 ms resulted in a difference in intensity of 0.022 au and a wave number of 1432.834 cm-1. The scanning parameters that can be used as standards are 300 mW and 3000 ms with a maximum intensity of 760.392 and 1220.221 au at wave numbers of 1425.577 and 1432.834 cm-1, respectively.
Analisis Pola Spektrum Plasma Darah Manusia Menggunakan Spektroskopi Raman Anak Agung Intan Rahmasari; Ida Bagus Made Suryatika; I Wayan Supardi
BULETIN FISIKA Vol 25 No 1 (2024): BULETIN FISIKA February Edition
Publisher : Departement of Physics Faculty of Mathematics and Natural Sciences, and Institute of Research and Community Services Udayana University, Kampus Bukit Jimbaran Badung Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/BF.2024.V25.i01.p06

Abstract

A research has been carried out on the analysis of the spectrum pattern of human blood plasma using Raman spectroscopy. The research was conducted at the Forensic, Science and Criminology Laboratory. Blood plasma samples were obtained from blood donors at the Indonesian Red Cross Blood Donor Unit, Sanglah Central General Hospital, Denpasar. This study aims to determine the spectrum pattern and obtain typical values ??of the wavenumber and intensity of human blood plasma. The method used is direct irradiation of blood samples with Raman spectroscopy using a power level of 400 mW and an exposure time of 3000 ms. The results showed that blood types A and B had one distinctive peak at wavenumber of 279.365 cm-1, blood types O and AB had three distinctive peaks, e.g. at wavenumbers 219.114, 259.375, and 279.365 cm-1. The maximum intensity value of the four different blood groups, namely blood type A is 1017.456 a.u, blood group B is 1006.857 a.u, blood group O are 664.468 a.u, 666.840 a.u, 667.943 a.u, and AB blood group are 670.791 a.u, 671.670 a.u, and 669.710 a.u.
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.
Co-Authors A.A. Ngurah Gunawan Adnyana, I Gusti Agung Putra Anak Agung Intan Rahmasari Asni Mulyati Jeni Cory Amelia Dedy Pratama, I Putu Gusti Ngurah Sutapa Helena Idah I Gde Antha Kasmawan I Gusi Putu Gede Oktar Mahardika I Ketut Putra 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 Nyoman Wendri Nyoman Wendri Poniman, S. Poppy Intan Tjahaja R. Dalem Rio Saputra Rozi Irhas Saputri, Izza Wahyu Saputri Selvi Marcellia Shatriani Wulandary Sipul Sukarasa, I Ketut Widagda, I Gusti Agung Yuliara, I Made