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Contact Name
Sadang Husain
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sadanghusain@yahoo.com
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jurnalflux@ulm.ac.id
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Location
Kota banjarmasin,
Kalimantan selatan
INDONESIA
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.
Arjuna Subject : -
Articles 555 Documents
Preparasi dan Karakterisasi Katalis CoMo/H-Zeolit Y Rustam Musta
Jurnal Fisika FLUX Vol 7, No 2 (2010): Jurnal Fisika Flux Edisi Agustus 2010
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (351.931 KB) | DOI: 10.20527/flux.v7i2.3090

Abstract

Preparation and characterization of catalyst CoMo/H-zeolite Y hasbeen done. Catalyst was prepared from NH4Y-zeolite then heated 115oC for 1 hto eliminate water then calcined at 550oC for 2 h to evaporate ammonia,produced HY-zeolite (HYZ) sample. Impregnation of CoMo metals on the HYZsample was done by co-impregnation method, where the HYZ (10 g) was mixedwith (NH4)6MO7O24.4H2O in 24 mL aquabidest and 3 mL of ammonia thenstirred of 60oC for 2 h. This mixture was then mixed with Co(NO3)2.6H2O in 24mL aquabidest and 3 mL of ammonia then stirred of 60oC for 2 h. The resultingsample was filtered and dried. The dried sample was then calcined under N2stream at temperature of 550oC for 2 h, followed by oxidized with O2 thenreduced with H2 stream at temperature 400oC for 2 h, respectively producedCoMo/HY catalyst. Characterization of the catalyst included analysis of NH3groups was done with by infra red spectrofotometry (IR), the crystallinity with Xraydiffraction (XRD) and the acidity was calculated with NH3 absorption bygravimetry method, metal content on the catalyst was determined by atomicabsorption spectroscopy (AAS). FTIR result of CoMo/HY catalyst showed thatdisappeared ammonia was after heating. The XRD date indicated the increase ofcatalyst crystallinity as the following: NH4Y< died NH4Y < HY< CoMo/HY.CoMo/HY catalyst has average acidity = 6,87 mmol/g where as the HY hasaverage acidity = 7,66 mmol/g. The metal content in the HY was 8023 and 7681ppm, for Co and Mo respectively.
Analisis Tingkat Kecepatan Korosi Besi dengan Menggunakan Sinar Gamma Ashar Muda Lubis; Supiyati Supiyati
Jurnal Fisika FLUX Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (69.003 KB) | DOI: 10.20527/flux.v6i2.3058

Abstract

In order to examinate rate of iron corrosion, we have conducted aresearch using apparatus Geiger-Muller Tube with sources radiation standardCo-60 as a source of Gamma ray. The samples, iron plate with diameter 2 cmand thichness 0.13 cm, were corroded by various media of corrosion i.e. water(H2O), solution of salt (NaCl) and sulphuric acid (H2SO4) with interval timecorrosion ± 5 days, 10 days, 15 days, 20 days, and 25 days. Firstly, weestimated intensity of Gamma ray before (Io) and after (I) passing through thesamples, and then we evaluated the absorption coefficient of samples. Weobtained that equation of absorption coefficient is A (water) = 0.0014t – 0.4608;R2 = 0.9184, A (salt solution) = 0.0015t – 0.4589; R2 = 0.8886 and A (sulphuricacid) = 0.0017t – 0.4532; R2 = 0.780. We calculated that the rate of corrosion forwater, salt solution and sulphuric acid is 0.0014 gr/cm2/day, 0.0015 gr/cm2/dayand 0.0017 gr/cm2/day respectively. The result shows the rate of corrosioncaused by sulphuric acid larger than corroded by salt and water. In addition, therates of corrosion of iron depend on interval time of corroding iron plate andmedia of corrosion. Another factor which may be related to rate of iron corrosionsuch as temperature, humidity and concentration of media of corrosion should beconsidered for next future.
Analisis Perhitungan Benchmark Keselamatan Kritikalitas Larutan Uranil Nitrat di Teras Slab 280T STACY Zuhair Zuhair; Suwoto Suwoto; Suharno Suharno
Jurnal Fisika FLUX Vol 8, No 2 (2011): Jurnal Fisika Flux Edisi Agustus 2011
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (361.409 KB) | DOI: 10.20527/flux.v8i2.3115

Abstract

Criticality benchmark experiment at STACY critical facility is important forvalidation of computation technique and nuclear data library used in design of nuclearfuel cycle criticality safety. This paper discusses criticality safety benchmarkcalculation at STACY facility, which uses uranyl nitrate solution with MCNP-4C MonteCarlo transport code. The continuous energy nuclear data library was utilized inbenchmark calculation to complete criticality safety analysis. The MCNP-4C criticality(keff) prediction indicated overestimated results for all configurations except forconfiguration 131. The biases of calculation with criticality experiment (keff = 1) wereunder 0.26%. Configuration 140 calculation showed the most precisely agreement withC/E value of 1.0001. From these results, it can be concluded that the capability andreliability of MCNP-4C is constantly high in prediction of criticality accuracy for uranylnitrate solution at STACY 280T slab core.
PERANCANGAN MODEL PREDIKSI CURAH HUJAN BULANAN BERDASARKAN SUHU PERMUKAAN LAUT DI KALIMANTAN SELATAN Dian Handiana; Sri Cahyo Wahyono; Dewi Sri Susanti
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 | Full PDF (330.63 KB) | 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
Identifikasi Diskontinuitas Seismik Mantel di Barat Laut Pulau Sumatera Menggunakan Data Prekursor SS Fahruddin Fahruddin; Apriadi Apriadi; Ibrahim Sota; Sadang Husain
Jurnal Fisika FLUX Vol 17, No 2 (2020): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1523.062 KB) | DOI: 10.20527/flux.v17i2.4925

Abstract

410km and 660km discontinuities are very clear and very easily identified discontinuities other than the Moho layer. This research utilizes SS precursor data, bouncepoints in the northern part of Sumatra. The data used is the depth of the epicenter <70 km, earthquake magnitude 5.5 and the distance between the epicenter and earthquake recording station more than 1000. This study is a preliminary study to determine changes in the depth of discontinuity in the study area. The SS phase is very well observed in the transversal component seismogram which is the result of the rotation of two horizontal components NS and EW, to obtain a good seismogram a 0.03Hz low pass filter is performed. In this study used 38 data transversal component seismograms, from 76 horizontal component seismograms. The most important thing in this study is the determination of the SS phase used as a reference (point 0), the SS phase is determined using the AK135 table guide, then the SS precursors are determined which can be seen at 450 seconds, 300 seconds, 90 seconds and 50 seconds before the SS . SS prekursors that are very clear at 450 seconds, are strongly suspected as a 660 km discontinuity. SS prekursors can be seen clearly after the stacking process.
Evaluasi Isian Bahan Peledak Berdasarkan groundvibration Hasil PeledakanOverburdenpada PT Bina Sarana Sukses KecamatanSungai Raya Kabupaten Hulu Sungai Selatan Provinsi Kalimantan Selatan Rusmawarni Rusmawarni; Nurhakim Nurhakim; Riswan Riswan; Ferdinandus Ferdinandus
Jurnal Fisika FLUX Vol 14, No 1 (2017): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.999 KB) | DOI: 10.20527/flux.v14i1.3583

Abstract

PT Bina Sarana Sukses merupakan perusahaan kontraktor tambang batubara yang bekerja melayani operasi produksi untuk PT Antang Gunung Meratus di Pit Warute. Salah satu kegiatan penambangan adalah pengupasan lapisan penutup dengan cara pemboran dan peledakan. Indikator keberhasilan selain tercapainya target produksi peledakan, antara lain fragmentasi dan ground vibration. Dimana ukuran fragmen yang dihasilkan berpengaruh untuk proses penggalian overburden yang terledakkan yang mempengaruhi kinerja alat gali muat dengan tidak mengesampingkan getaran peledakan yang ditimbulkan. Geometri peledakan yang digunakan yaitu burden 8 m x spasi 9 m dengan kedalaman lubang bervariasi antara 5 m sampai 8 m. jarak pengukuran ground vibration  400 m sampai 600 m dari lokasi peledakan. Semakin besar jumlah isian bahan peledak yang digunakan semakin besar pula ground vibration yang dihasilkan, maka jumlah isian bahan peledak harus dikurangi untuk mengurangi ground vibration yang dihasilkan. Alat yang digunakan untuk pengukuran ground vibration adalah Minimate dari Instantel. Metode analisa hasil peledakan menggunakan analisa perbandingan dan regresi. Dari hasil analisa, didapatkan simulasi jumlah isian bahan peledak dengan nilai PPV yang disimulasikan sebesar 2 mm/s. Dengan menggunakan rumus scaled distance maka direkomendasikan jumlah isian bahan peledak pada jarak 400 sebesar 57,45 kg/lubang, jarak 450 m sebesar 72,71 kg/lubang, jarak 500 sebesar 89,76 kg/lubang dan jarak 600 m sebesar 129,26 kg/lubang. Sedangkan dengan menggunakan rumus propagation law maka dapat direkomendasikan jumlah isian bahan peledak pada jarak 400 m yaitu sebanyak 103,04 kg/delay, pada jarak 450 m yaitu sebanyak 130,41 kg/delay, pada jarak 500 m yaitu sebanyak 161 kg/delay dan pada jarak 600 m yaitu sebanyak 231,84 kg/delay.
KARAKTERISASI ANTENA MIKROSTRIP PATCH SEGITIGA SAMASISI DENGAN FREKUENSI KERJA 2,4 GHz UNTUK KOMUNIKASI WIRELESS Rolly Ega Suganda; Nurma Sari; Suryajaya Suryajaya
Jurnal Fisika FLUX Vol 13, No 1 (2016): Jurnal Fisika FLUX Edisi Februari 2016
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (181.241 KB) | DOI: 10.20527/flux.v13i1.1635

Abstract

Telah dibuat antena mikrostrip patch segitiga samasisi dengan frekuensi kerja 2,4 GHz. Antena mikrostrip patch segitiga dipilih karena memiliki dimensi yang lebih kecil untuk menghasilkan radiasi dan frekuensi kerja yang sama dibandingkan bentuk geometris lainnya. Mikrostrip patch segitiga samasisi dibuat melalui tahap-tahap simulasi, fabrikasi, dan karakterisasi. Program simulasi antena mikrostrip dibuat menggunakan fitur GUI pada pemrograman Matlab. Antena yang telah difabrikasi, dibuat pada substrat FR4 dengan  4,7 pada ketebalan 1,6 mm dan 1,0 mm, variasi yang diterapkan adalah ukuran substrat yang dibuat pada luasan 55mmx55mm dan 60mmx60 mm, dengan total keseluruhan berjumlah empat sampel antena. Pada kondisi ideal keempat sampel harus memiliki return loss -54,4223 dB; VSWR 1,00; impedansi 49,81 ohm; dan gain 6,93 pada ketebalan substrat 1,6 mm dan 4,89 pada ketebalan substrat 1,0 mm. Hasil karakterisasi yang telah dilakukan didapatkan nilai return loss keempat sampel berurutan sebesar -19,558; -20,416; -17,25 dan -8,97 dB, VSWR berurutan bernilai 1,24; 1,21; 1,32 dan 2,26, Impedansi bernilai 56,734; 56,457; 54,069 dan 55,641 ohm, dan gain bernilai 2,21; 2,23; 2,1 dan 2,22 dB. Pola radiasi azimuth dan polarisasi membentuk kuncup besar dan kuncup belakang yang dominan, padahal pada kondisi ideal kuncup belakang dominan hanya terjadi pada antena omnidirectional. Pola radiasi elevasi membentuk pola menyerupai setengah lingkaran yang tidak sempurna ke arah gain maksimum. Dari keempat sampel, hanya antena empat yang tidak memenuhi syarat untuk digunakan pada frekuensi kerja 2,4 GHz, karena memiliki return loss dan VSWR yang tidak memenuhi standar.Kata kunci: komunikasi wireless, antena mikrostrip patch segitiga, Matlab
Halaman Depan Jurnal Fisika FLUX Sadang Husain
Jurnal Fisika FLUX Vol 14, No 1 (2017): Jurnal Fisika Flux: Jurnal Ilmiah Fisika FMIPA Universitas Lambung Mangkurat
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/flux.v14i1.4508

Abstract

PENENTUAN NILAI SATURASI MAGNETIK BATUAN PERIDOTIT ASAL DESA AWANG BANGKAL BARAT KABUPATEN BANJAR KALIMANTAN SELATAN Sudarningsih Sudarningsih; Simon Sadok Siregar; Wenny Habib Ghofallena
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 | Full PDF (106.379 KB) | 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)
PENDUGAAN PENCEMARAN AIR TANAH DI TEMPAT PEMBUANGAN SAMPAH LANDASAN ULIN TIMUR DENGAN METODE GEOLISTRIK KONFIGURASI SCHLUMBERGER Denok Dwi Priyanti; Sri Cahyo Wahyono; Simon Sadok Siregar
Jurnal Fisika FLUX Vol 11, No 1 (2014): Jurnal Fisika FLUX Edisi Februari 2014
Publisher : Lambung Mangkurat University Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (129.108 KB) | DOI: 10.20527/flux.v11i1.2622

Abstract

ABSTRACT. Along with the increment of human population, ground water pollution also tends to increase. It primarily due to the accumulation of waste which could harm the public health. Trash or waste is one of the important issues which could contaminate ground water, especially waste landfills. Ground water that has been contaminated with liquid waste (leachate) can affect the quality of ground water. This study aimed to determine the composition of rocks, layers and depth of ground water around waste landfills (TPS) and to determine whether ground water around the TPS is contaminated or not. Estimation of groundwater pollution could be determined by measurement using geoelectric method with schlumberger configuration. It showed  the presence of leachate layer at depth of 0,51 – 8,51 m with measured resistivity of 3,89 – 9,63 Ohm.meter, while groundwater is at depth of 22,92 – 26,59 m with resistivity value of 88,98 – 128,75 Ohm.meter. AAS sample test has been conducted to determine whether the ground water around TPS is contaminated or not.  The test results using AAS showed groundwater around TPS was contaminated with Lead (Pb), iron (Fe) and Cadmium (Cd). The evidence was the value of their concentrations in three water samples which exceeded the thresholds in accordance with the requirements of drinking water. Threshold for Pb, Fe and Cd are 0,01 ppm, 0,3 ppm and 0,003 ppm, respectively. From the measurement results of sample 1, 2 and 3 couls be obtained the concentration of  Pb are 0,084 ppm, 0,044 ppm and 0,091 ppm, the concentration of Fe are 0,812 ppm for 1,018 ppm and 0,203 ppm, while the concentration of Cd are 0,012 ppm, 0,017 ppm and 0,01 ppm. Keywords: Ground water, waste, geoelectric, AAS

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