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Jurnal Fisika FLUX
Published by Universitas Lambung Mangkurat
ISSN : 1829796X     EISSN : 25411713     DOI : -
Core Subject : Science, Education,
Earth & Planetary Sciences Education Materials Science & Nanotechnology Physics
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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Articles 18 Documents
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Search results for , issue "Vol 6, No 2 (2009): Jurnal Fisika Flux Edisi Agustus 2009" : 18 Documents clear
Analisa Lapisan Keras (Bedrock) dengan Menggunakan Metode Seismik Refraksi Utami, Binar; Fahruddin, Fahruddin; Siregar, Simon Sadok
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 | DOI: 10.20527/flux.v6i2.3056

Abstract

Each region generally has a condition of various land surface, usuallyused as information for making a geological map of the regions, but theinformation can not provide a real illustration of the depth of the hard layer(bedrock) found in the area. Thus, to determine the depth of the bedrock as theinitial information exploited for the region of Banjarbaru more, then done bymeasuring the depth of the bedrock by seismic refraction. Soil has severalcompiler layers, the deeper layer from surface is denser and each layer hasdefferent characteristics. The nature used in this research is the difference of thespeed to creep the seismic waves on each layer. By creeping the seismic waves,the information of undercoat surface is obtained depend on the speed increeping seismic waves. To find out the speed and types of layers under the soiland to know the depth of the bedrock in the region are done by using seismicequipment refraction, by initial assumption that bedrock usually is found in therelatively shallow depth in the region of Banjarbaru. From the results of the datasampling done by measuring the length of the track 72 meters and thenprocessed by using the software winsism 10 bedrock was found on the yard ofengeniring faculty Unlam Banjarbaru in depth around 6-15 meters, in the speedof spreading waves in the range of 2800-3200 (m/s) and there is nappe layer(top soil) of the seismic waves creeping velocity 300-400 (m/s) and a much watercontent-thinner layer spreading speed of seismic wave in the range of 1400-1600(m/s).
Upaya Meningkatkan Hasil Belajar Mahasiswa Pada Matakuliah Fisika Modern Melalui Pendekatan Konstruktivisme Model Pembelajaran Kooperatif Tipe Jigsaw Hadi, Arif Ismul; Samdara, Rida
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 | DOI: 10.20527/flux.v6i2.3055

Abstract

The purpose of this research is increase of to study result in ModernPhysics course with constructivism approaching of cooperative model jigsawtype. The results show that application of cooperative model jigsaw type can beincreasing to study result with average value added percent is 2.57% (67.61-69.35) and study comprehensiveness is 37.64% (58.1%-70.79%), studentactivity in Modern Physics education involving lectures increase in good category(28.5 average). The topics in the matter can be increasing to absorb power ofstudent.
Estimasi Curah Hujan Kota Banjarbaru Kalimantan Selatan Menggunakan Metode Jaringan Syaraf Tiruan Rizalihadi, Muhammad; Siregar, Simon S; Sudarningsih, Sudarningsih
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 | DOI: 10.20527/flux.v6i2.3061

Abstract

Rain is weather phenomenon caused by climate’s physical conditionsof atmosphere variables such as temperature, air pressure, air density, humidityand wind of velocity. Many researches on rain have been undertaken inIndonesia. Many statistic models are resulted from those researches;nevertheless, in statistic models climate’s physical conditions are not consideredas components which affect the rain occurrence. Besides, estimating the amountof rain that is to fall-whether it is increasing, decreasing, or static- with statisticmodels is still unsure. Physical and mathematical approaches of weathervariables only are not enough to estimate rainfall. More interpretations areneeded to apply. Therefore, this research implements a way to estimate dailyrainfall using a method called Artificial Neural Network. As parameter of theinputs of JST program, then the data of daily temperature, air humidity and windspeed play important roles, while the output which is manifested in daily rainfalltested in data scale, a period of 5-9 years. The results obtained show that JSTmethod enables us to estimate daily rainfall of Kota Banjarbaru.
Studi Analisis Sifat Dielektrik Tanah dengan Variasi Porositas Pada Frekuensi Resonansi Rendah Sehah, Sehah; Aziz, Abdullah Nur
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 | DOI: 10.20527/flux.v6i2.3054

Abstract

The equipment to measure dielectric properties of soil samples withlissajous method has been designed in Electronic and InstrumentationsLaboratory, Faculty of Science and Technique, Jenderal Soedirman University,Purwokerto. The fundamental parts of this equipment are signal generator,cathode ray oscilloscope (CRO) and parallel plate. Thus, the soil samples whichbe researched is placed in zone between parallel plate, as dielectric material. Ifsignal generator supply electric field into the parallel plate, hence response ofsamples to electric field is shown with voltages values on oscilloscope (CRO).Based on this voltages values, so that can be calculated a dielectric permittivity,dielectric loss and tangent loss of soil samples. The number of samples thatmeasured its dielectric properties are three samples, which contains of top soil,smooth sand of river, and sediments rocks. The measurement to dielectricproperties with variation of porosity is done to samples at low resonancefrequency of 600 kHz and 2,75 MHz. The results which obtained show that alinear relation between dielectric constant of soil samples to its porosity, but withempirical equations different for every samples.
Estimasi Ukuran Bulir Mineral Magnetik pada Batuan Peridotit Berdasarkan Peluruhan Anhysteretic Remanent Magnetization (ARM) Reida, Rina; Sudarningsih, Sudarningsih; Wianto, Totok
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 | DOI: 10.20527/flux.v6i2.3062

Abstract

A decaying measurement of Anhysteretic Remanent Magnetization(ARM) has been undertaken to estimation the grain size of magnetic mineralwhich carries remanent on peridotite igneous rocks. The samples are taken fromDesa Aranio, Kabupaten Banjar, South Kalimantan. The samples are taken in acylinder from with the diameter 2.54 cm and 2.2 cm in length by using Drill ModelD026-C. The giving, measuring and decaying process of ARM is done byMolspin AF Demagnetizer, partial Anhysteretic Remanent Magnetization(pARM), and Minispin Magnetometer. The estimation of grain size of magneticmineral is obtained by seeing ARM intensity decaying curve towards magneticfield shown by the samples of peridotite igneous rocks. The ARM intensitydecaying curve show that the estimated peridotite rocks in research aredominated by multidomain and the size are big, whereas the distribution of thegrain size is larger than 200 μm.
Analisis Tingkat Kecepatan Korosi Besi dengan Menggunakan Sinar Gamma Lubis, Ashar Muda; 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 | 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.
Fabrikasi dan Karakterisasi Sel Surya Organik Berbasis ITO/CuPc/PTCDI/Ag Nurosyid, Fahru; Kusumandari, Kusumandari
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 | DOI: 10.20527/flux.v6i2.3053

Abstract

Has been fabricated and characterized an organic solar cell based onCopper phthalocyanine (CuPc) and 3, 4, 9, 10 perylenetetracarboxylic diimide(PTCDI). CuPc and PTCDI layer sandwiched between two different electrode ofITO and Ag by vacuum evaporation so solar cell structure isITO/CuPc/PTCDI/Ag. UV-Vis spectra of ITO/CuPc/PTCDI/Ag is 400 nm to 760nm which is superposition of CuPc layer and PTCDI layer. From characterizationof current density – voltage (J-V) show that current under illumination higher thandark current. The power conversion efficiency of 0.40 % under illumination 100mW/cm2 are obtained with fill factor 0.33.
Metoda Ekstraksi Cair-Cair sebagai Alternatif untuk Pembersihan Lingkungan Perairan dari Limbah Cair Industri Kelapa Sawit Putranto, Agus M. H.
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 | DOI: 10.20527/flux.v6i2.3059

Abstract

Telah dilakukan penelitian tentang pembersihan lingkungan perairanmelalui metoda ekstraksi cair-cair dalam rangka mengurangi polusi lingkunganyang dihasilkan oleh limbah cair industri kelapa sawit, yang manfaatnya dapatsebagai bahan dasar industri makanan dan farmasi. Metode ini bermanfaatuntuk mengekstraksi limbah cair yang mengandung gugus yang bersifat hidrofildan lebih sukar menguap daripada air. Apabila dibandingkan dengan metodepengendapan yang konvensional untuk larutan dengan konsentrasi asam yangtinggi, maka metode ini lebih cocok untuk larutan dengan konsentrasi asamasamkarboksilat kurang dari 3%. Apabila dibandingkan dengan limbah cairagroindustri sebenarnya, maka pada penelitian ini dipergunakan limbah modelyang berisi 5 g/l dan 10 g/l asam butirat dalam larutannya. Penelitian dilakukandalam berbagai konsentrasi pelarut mulai dari 30% - 80% volume TBF dan TEFsebagai pelarut utama dalam campuran dengan dodekana sebagai pelarutpendamping (diluent). Pengurangan massa jenis dan viskositas yang dimilikipelarut utama, oleh adanya diluent akan sangat membantu dalam prosesekstraksi dan transfer massa. Persentase asam terekstraksi dalam fasa organikdalam rasio pelarut secara volumetri telah ditentukan dalam penelitian ini, yaitukemampuan maksimum pelarut TBF pada 80% v/v mencapai 53,34% dan52,78% untuk pelarut TEF. Selanjutnya dari sifat ketidaklarutan dalam air dankemampuan ekstraksinya, TBF dan TEF, belum dapat dipromosikan sebagaiekstrakstan untuk penggunaan dalam industri kelapa sawit, dikarenakan tidaksemua asam butirat yang ada di dalam limbah cair tersebut dapat diekstraksi.
Prediksi Jangka Pendek Debit Aliran Irigasi Seluma dengan Menggunakan Jaringan Syaraf Tiruan Supiyati, Supiyati; Bahri, Syamsul; Erdi, Iwan
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 | DOI: 10.20527/flux.v6i2.3057

Abstract

Penelitian mengenai prediksi jangka pendek debit aliran irigasiSeluma dengan menggunakan jaringan syaraf tiruan telah dilakukan. Perangkatlunak dibuat dengan Matlab, dan untuk arsitektur jaringannya menggunakanmetode propagasi balik. Penelitian ini bertujuan untuk memperkirakan debitaliran irigasi jangka pendek, debit bulan atau tahun yang akan datang yangnantinya bisa diolah sebagai acuan peningkatan daerah irigasi tersebut. Darihasil penelitian debit aliran irigasi terbesar terjadi pada bulan Desember denganketinggian 72,75 m3/s sedangkan untuk debit paling kecil terjadi pada bulan Junidengan besar debit 24,71 m3/s. Perbedaan hasil prediksi dengan data lapanganmemiliki keakuratan data 82,80%.
Analisa Lapisan Keras (Bedrock) dengan Menggunakan Metode Seismik Refraksi Binar Utami; Fahruddin Fahruddin; Simon Sadok Siregar
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 (610.546 KB) | DOI: 10.20527/flux.v6i2.3056

Abstract

Each region generally has a condition of various land surface, usuallyused as information for making a geological map of the regions, but theinformation can not provide a real illustration of the depth of the hard layer(bedrock) found in the area. Thus, to determine the depth of the bedrock as theinitial information exploited for the region of Banjarbaru more, then done bymeasuring the depth of the bedrock by seismic refraction. Soil has severalcompiler layers, the deeper layer from surface is denser and each layer hasdefferent characteristics. The nature used in this research is the difference of thespeed to creep the seismic waves on each layer. By creeping the seismic waves,the information of undercoat surface is obtained depend on the speed increeping seismic waves. To find out the speed and types of layers under the soiland to know the depth of the bedrock in the region are done by using seismicequipment refraction, by initial assumption that bedrock usually is found in therelatively shallow depth in the region of Banjarbaru. From the results of the datasampling done by measuring the length of the track 72 meters and thenprocessed by using the software winsism 10 bedrock was found on the yard ofengeniring faculty Unlam Banjarbaru in depth around 6-15 meters, in the speedof spreading waves in the range of 2800-3200 (m/s) and there is nappe layer(top soil) of the seismic waves creeping velocity 300-400 (m/s) and a much watercontent-thinner layer spreading speed of seismic wave in the range of 1400-1600(m/s).

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