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Jurnal Fisika FLUX
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Jurnal Fisika FLUX is a peer-reviewed, open access journal that publishes original research articles, review articles, as well as short communication in all areas of physics including applied physics, which includes: physics instrumentation and computation, biophysics, geophysics, physics materials, theoretical physics, and physics education. Journal use single peer reviewed to publish. This journal is published by Universitas Lambung Mangkurat Press. ISSN 1829-796X (print) and ISSN 2541-1713 (online) Jurnal Fisika FLUX is published twice a year. Articles will be peer reviewed first. Once ready to be published immediately on the current edition.
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Search results for , issue " Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013" : 10 Documents clear
STUDI DAN KAJIAN DATA NUKLIR REAKTOR GENERASI-IV DENGAN SPEKTRUM NEUTRON CEPAT Suwoto, Suwoto; Zuhair, Zuhair
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2633

Abstract

Abstract. STUDY AND ASSESSMENT OF GENERATION IV REACTOR NUCLEARDATA WITH FAST NEUTRON SPECTRA. Generation IV International Forum (GIF)has evaluated and assessed NES of Gen- IV and selected six potential types ofreactors to be deployed in the next decade. Those include GFR, LFR, SFR, MSR,SCWR and VHTR. The first three reactors were fast neutron spectrum applied and therest reactors were thermal neutron spectrum used. The study and assessment focusedon the nuclear data characteristic parameter and nuclear data uncertainties of Gen-IVreactor with fast neutron spectrum. Until 2008, the accuracy target of nuclear datacross-sections used it in fast reactor spectrum calculation are relatively significantespecially for σ-capture, σ-fission, and σ-inelastic. Several differences of nuclear datacross-sections on minor actinide isotopes between expected and targeted parametersare observed such as σ-fission of Cm-244 isotope up to 10 times larger and σ-captureof 92-U-238 isotope around 1.5-2 times higher than targeted parameters. Uncertaintyand accuracy of minor actinide cross-sections for fast spectrum Gen-IV reactorsprovide relatively significant discrepancies (1.3 to 10 times higher) in term of accuracybetween expected and targeted parameters. Some differences of provided results fromany experimental and assessment data with several evaluated nuclear data files for Pbare found. Some discrepancies on integral parameter of fast spectrum Gen-IV reactorsbetween expected and targeted such keff, void reactivity and Doppler effects, peakpower and burn-up are clearly observed. Accurate and precise cross-sections data ofradiation captured and threshold reaction cross sections such as (n,2n), (n,3n), (n,p),(n,α) are necessary for fast reactors.Keywords: cross-sections, fast neutron spectrum, GFR, LFR, SFR, uncertainty, targetaccuracy
PENENTUAN NILAI SATURASI MAGNETIK BATUAN PERIDOTIT ASAL DESA AWANG BANGKAL BARAT KABUPATEN BANJAR KALIMANTAN SELATAN Sudarningsih, Sudarningsih; Siregar, Simon Sadok; Ghofallena, Wenny Habib
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2303

Abstract

Abstrak : Peridotite rocks are ultra-alkaline rocks that igneous rocks which highin mineral content of FeO, and also a magnetic mineral. Each rock type hasspecific properties and characteristics are manifested in the magnetic field inmagnetic parameters of rocks or minerals. One way to provide an overview of thecomposition and type of magnetic minerals in these rocks is to determine themagnetic saturation curve. Giving Isothermal Remanent Magnetism (IRM) isdone using instruments Electromagnetic Weiss gradually began to flow 1A, 2A,3A 10 A, etc., until the sample reaches saturation magnetic intensity. On themeasurement of magnetic saturation curve samples will be given a very largemagnetic field (until 0.8 T) gradually by using an electromagnet. The intensity ofmagnetization, as measured by Minispin magnetometer, and then plotted as afunction of the magnitude of a given field. The shape of this saturation curve willprovide an overview of the composition and type of magnetic minerals that existin the sample. The results showed that the shape of the IRM curve (remanentmagnetic intensity) is reached more quickly saturated the H <300 mT theperidotite rock in the identification of the mineral magnetite. The identification ofthese magnetic minerals is also based on the curvature of the IRM (remanentmagnetic intensity), the composition obtained is Fe3O4.Keywords: peridotite rocks, magnetic saturation, Isothermal RemanentMagnetism (IRM)
PERANCANGAN MODEL PREDIKSI CURAH HUJAN BULANAN BERDASARKAN SUHU PERMUKAAN LAUT DI KALIMANTAN SELATAN Handiana, Dian; Wahyono, Sri Cahyo; Susanti, Dewi Sri
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.1956

Abstract

Abstrak : Kebutuhan akan adanya informasi prediksi curah hujan yang baik sangat diperlukan dalam berbagai sektor. Penelitian ini menentuan keterkaitan Suhu Permukaan Laut (SPL) terhadap curah hujan dan perancangan model prediksi curah hujan bulanan di Kalimantan Selatan. Data masukan yang digunakan adalah data SPL terpilih di sembilan luasan (Samudera Pasifik, Samudera Hindia, Laut Cina Selatan, Perairan Kalimantan Selatan) dan data curah hujan pada sepuluh titik di Kalimantan Selatan. Metode yang digunakan adalah koefisien korelasi dalam menentukan keeratan hubungan antara variabel curah hujan dan SPL dan metode regresi stepwise untuk mendapatkan model prediksi terbaik. Hasil penelitian menunjukkan bahwa terdapat pengaruh yang signifikan SPL di 9 luasan yang dipilih terhadap curah hujan di Kalimantan Selatan. SPL yang banyak berperan pada pembentukan model prediksi curah hujan adalah SPL Samudera Pasifik equator timur yaitu SPL Nino 3,4 dan SPLNino 4. Model prediksi curah hujan terbaik terjadi pada bulan – bulan musim kemarau dan masa transisi kemarau menuju hujan yaitu Juli, Agustus, September dan Oktober, Model prediksi curah hujan yang dihasilkan mampu membaca perilaku hujan pada kondisi ekstrim, sehingga dapat dijadikan peringatan dini terhadap kekeringan atau hujan sepanjang tahun. Nilai korelasi signifikan curah hujan dengan SPL terbaik pada bulan Agustus di Banjarbaru mencapai 0,802, dan model prediksi terbaik bulan Agustus di Banjarbaru yaitu = 335.553 − 72.701 ( ) + 63.863 ( ) dengan hasil pengujian yang signifikan dan model tersebut mampu menjelaskan variasi data sebesar 71,8%.Kata kunci : Prediksi curah hujan, Suhu Permukaan laut, koefisien korelasi, regresi stepwise
DETEKSI KEBOCORAN GAS LPG BERBASIS MIKROKONTROLER ATMega8535 Rusgianto, Rusgianto
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2634

Abstract

Abstract. An electronic system based on Atmega8535 microcontroller for detectingLPG gas has been done. The system was employed a gas sensor, a temperaturesensor DS18S20, Op-amp LM358, IC voice ISD25120, a microcontroller, and LCDdisplay. The microcontroller was programmed with Basic program that suitable for thedevice. The system was supported a gas sensor and a temperature sensor to get themain signal the gas available on air surrounded gas tube and temperature condition.All of the system was controlled by microcontroller. The signal from the microcontrolleris send to LCD and IC vice ISD 25120. It was concluded that the system work well wellsince the all parameter were displayed on monitor simultaneously.Keywords: ATMega8535, sensor DS18S20, ISD25120
PENENTUAN POTENSI KEDALAMAN DAN KANDUNGAN BIJIH BESI DI DESA AJUNG KABUPATEN BALANGAN KALIMANTAN SELATAN Dewi, Raisa Kusuma; Wianto, Totok; Wahyono, Sri Cahyo
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2304

Abstract

ABSTRACT: Ajung Village District of Balangan, astronomically are located 114º 5031 115 ° 5024 E and 2 º 131 - 2 ° 3558 S. Based on the geologicalmap, the Ajung Village District Balangan is Haruyan formation, Ultramafic Rocksand Granodiorit. The erosion of Ultramafic rocks, especially serpentinit undergochemical decomposition and accumulation of iron ore. Since the potential of ironore in Ajung Village is not certain then in this study the authors conducted astudy to determine the potential depth and content of iron ore by using 3Dgeoelectric Dipole Dipole configuration, Atomic Absorption Spectrophotometer(AAS) and X-ray flourescence (XRF). The results of field measurements 3Dgeoelectric method Dipole Dipole configurations with the potential depth of ± 0to 2.05 meters in the form of chunks of rock with prices between 1594 -2442Ohm.meter resistivity. The average Fe content of elements in the iron ore fromAjung village, District Balangan by laboratory analysis using AAS was 50.01%,while 94.82% are using XRF.Keywords: iron ore, geoelectric, AAS, XRF
PENENTUAN PANJANG GELOMBANG EMISI PADA NANOPARTIKEL CdS DAN ZnS BERDASARKAN VARIASI KONSENTRASI MERCAPTO ETHANOL Salahuddin, Muhammad; Suryajaya, Suryajaya; Sari, Nurma; Putra, Edy Giri
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2630

Abstract

melalui Aqueous Phase Synthesis dengan penambahan variasi Mercapto Ethanol untukmemodifikasi ukuran jari-jari nanopartikelnya. Larutan tersebut digunakan untukmembuat lapisan tipis nanopartikel CdS dan ZnS menggunakan teknik ElectrostaticsSelf-Assembly.Larutan nanopartikel dan lapisan tipis nanopartikel CdS dan ZnSdikarakterisasi dengan UV-Vis Spektrometer untuk mengetahui terbentuknyananopartikel serta terdepositnya nanopartikel pada substrat dan LuminesenSpektrometer untuk menentukan panjang gelombang emisinya.Spektrum UV-Vis darisampel menunjukkan pergeseran biru sebagai indikator terbentuknya nanopartikel sertaterdepositnya lapisan tipis pada substrat.Emisi cahaya untuk nanopartikel CdS denganpenambahan Mercapto ethanol berada pada panjang gelombang 445-453 nmsedangkan untuk nanopartikel ZnS, 309-371 nm dan 442-574 nm.Pada penelitian inijuga diketahui bahwa panjang gelombang emisi nanopartikel CdS dan ZnS cenderungbertambah besar dengan bertambah besarnya penambahan konsentrasi Mercaptoethanol.Kata Kunci : CdS, ZnS, Mercapto Ethanol, Luminesen
SISTEM PEMBERI PAKAN IKAN SECARA OTOMATIS BERBASIS MIKROKONTROLER ATMega8535 Setyawan, Herry; Misto, Misto; Gumay, Rofy Fazra
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2635

Abstract

Abstract: An electronic system based on Atmega8535 microcontroller for food fishfeding has been done. The system was employed a RTC, a pair infrared LED andphotodiode sensor, DC motor, driver circuit, a microcontroller, and LCD display. Themicrocontroller was programmed with C language and AVR program that suitable forthe device. The system was supported by a RTC device to get the main time basesignal of the system time. All of the system was controlled by microcontroller. Thesignal from the microcontroller is send to LCD and fish food applicator. It was concludedthat the system work well well since the all parameter and action were displayed onmonitor simultaneously and the applicator.Keyword: ATMega8535, RTC, infrared LED and photodiode sensor, DC motor,applicator
IDENTIFIKASI MINERAL MAGNETIK ABU TERBANG (FLY ASH) DAN ABU DASAR (BOTTOM ASH) SISA PEMBAKARAN BATUBARA PLTU ASAM-ASAM Husna, Wardatul; Sudarningsih, Sudarningsih; Wianto, Totok
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2305

Abstract

Abstrak: Pembakaran batubara yang dimanfaatkan sebagai energi panas padaPLTU akan menghasilkan abu yang terpisah, yaitu abu terbang dan abu dasarsekitar 5-10%. Abu ini merupakan kumpulan dari bahan pembentuk batubara yang tidak terbakar (non-combustible materials) atau yang dioksidasi oleh oksigen. Pada penelitian ini, dilakukan identifikasi mineral magnetik pada abu terbang (fly ash) dan abu dasar (bottom ash) dari sisa pembakaran batubara PLTU Asam-Asam. Sampel abu terbang dan abu dasar yang sudah dipreparasi kemudian diuji dengan menggunakan difraksi sinar x (XRD) untuk mengetahui persentase dan komposisi mineral dari masing-masing abu terbang dan abu dasar. Selain itu juga dilakukan pengukuran suseptibilitas magnetik menggunakan Bartington Magnetic Suseptibility Meter MS2B. Hasil penelitian menunjukkan penyusun utama dari abu terbang adalah silika (SiO2) sebesar 67 % dan kandungan mineral magnetiknya sebesar 9% yaitu mineral dengan rumus kimia Fe2Mo3NaO12, sedangkan sisanya adalah mineral yang lain. Nilai suseptibilitas magnetik yang terukur pada abu terbang berkisar antara 2815,9 x 10-8 - 2985 x 10-8 m3/kg. Sedangkan pada abu dasar terkandung mineral magnetik lebih besar dibandingkan dengan abu terbang, yaitu mineral magnetite (Fe3O4) sebesar 13 %, penyusun utamanya juga silika (SiO2) dengan persentase sebesar 65 % dan nilai suseptibilitasnya yang terukur berkisarantara 6268,1 x 10-8 sampai dengan 6613,6 x 10-8 m3/kg. Dari nilai suseptibilitas yang terukur, dapat diketahui bahwa mineral magnetik yang terkandung pada abu terbang dan abu dasar bersifat paramagnetik hingga ferromagnetik meskipun persentasenya lebih kecil dibandingkan dengan mineral yang bersifat diamagnetik. Tingginya nilai suseptibilitas magnetik dipengaruhi oleh persentase mineral magnetik yang terkandung pada sampel.Kata Kunci : Batubara, abu terbang, abu dasar, suseptibilitas, mineral magnetik.
ANALISA KANDUNGAN MINERAL GUANO DARI GUA LIANG BESAR KABUPATEN HULU SUNGAI SELATAN KALIMANTAN SELATAN Pahmiansyah, Pahmiansyah; Sudarningsih, Sudarningsih; Wianto, Totok
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2631

Abstract

Abstrak: Penelitian tentang analisa kandungan mineral guano dari Gua Liang Besar,Kabupaten Hulu Sungai Selatan, Kalimantan Selatan telah dilakukan. Penelitian inibertujuan untuk mengetahui kandungan mineral guano Gua Liang Besar denganmenggunakan uji difraksi sinar-X dan mineral magnetik berdasarkan nilaisuseptibilitasnya. Hasil penelitian ini berupa karakteristik guano dan nilai susptibilitasguano. Kandungan mineral penyusun guano didominasi oleh silicon oxide (O2Si),mineral lainnya yaitu tribidium hydrogen bisulfate (HO8Rb3S2), berlinite (AlO4P),titanium (III) nitride (NTi), picotpaulite (Fe2S3Tl) dan Brucite (MgH2O2). Nilaisuseptibilitas magnetik yang didapat dari guano Gua Liang Besar berkisar dari 0,111 x10-6m3 Kg-1 sampai 0,224 x 10-6m3 Kg-1. Berdasarkan kisaran nilai tersebutkemungkinan mineral yang terkandung dalam guano Gua Liang Besar adalah biotite(Mg,Fe,Al silicate) dengan nilai suseptibilitas magnetik berkisar dari 0,05 x 10-6m3 Kg-1sampai 0.95 x 10-6m3 Kg-1 dan amphibole (Mg,Fe,Al silicate) dengan nilai suseptibilitasmagnetik berkisar dari 0,16 x 10-6m3 Kg-1 sampai 0.69 x 10-6m3 Kg-1, yang manakeduanya tergolong ke dalam paramagnetic yaitu bahan-bahan yang memilikisuseptibilitas magnetik Xm yang positif, dan sangat kecil.Kata Kunci: Guano, Sinar-X, Suseptibilitas Magnetik
ANALISA POTENSI KEDALAMAN BATUBESI DENGAN METODE GEOLISTRIK 3D DI GUNUNG MELATI KABUPATEN TANAH LAUT Widyayanti, Meta; Wahyono, Sri Cahyo; Wianto, Totok
Jurnal Fisika FLUX Vol 10, No 1 (2013): Jurnal Fisika FLUX Edisi Februari 2013
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v10i1.2632

Abstract

ABSTRACT: Iron ore are boulders containing of iron deposition, which consists of Feand the rest is composed by other minerals. There are 15 locations of iron ore in SouthKalimantan, one of them is Gunung Melati. Iron mineralization is formed by the contactof metasomatik-sedimentary volcanic rocks, the pyroclastic rocks series. The depth’spotency of iron ore is obtained from measurements with a 3D geoelectric method ofpole-pole configuration that indicate iron ore’s location in 3.20 to 10.1 m depth, and 27.1to 63.4 m with resistivity values of iron ore which has been measured in 3167-3847Ohm.meter and the potency of iron ore was spread unevenly in large chunks of stone.The samples test with XRD and SEM EDS is done to determine the composition andthe effect of washing enrichment process. XRD test results showed the dominance ofthe mineral hematite (Fe2O3) of sample 1 is 75% and sample 2 at 69%. After theenrichment washing, compound’s phase turned into magnetite (Fe3O4). Sample 1which had been washed with water was change into 77% and 83% after enrichmentwashing with HCl, while sample 2 were washed with water to 70%, washed with a 79%HCl. The test results with SEM EDS showed the increased levels of smoothness ofsurface structure and Fe’s level. Samples in sequence from start to washing with waterthen HCl Fe’s level is at 37.62%; 49.47% and 55.33%. The comparison of Fe contentfrom the test results with the relative age based on stratigraphy showed that relativelyolder sample 1 has a Fe content greater than sample 2 relatively younger age.Keywords: Iron ore, geoelectric, XRD, SEM EDS, stratigraphy

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