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Faculty of Mathematics and Natural Sciences UNY (Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) Jl. Colombo No.1, Karang Malang, Caturtunggal, Depok, Sleman, Daerah Istimewa Yogyakarta 55281
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Jurnal Ilmu Fisika dan Terapannya (JIFTA)
Published by Universitas Negeri Yogyakarta
ISSN : -     EISSN : 30265983     DOI : -
Core Subject : Science, Education, Engineering,
Astronomy Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mathematics Physics
Jurnal Ilmu Fisika dan Terapannya merupakan jurnal yang dikelola oleh Program Studi Fisika, Jurusan Pendidikan Fisika, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Yogyakarta. Jurnal ini menerbitkan karya ilmiah atau artikel dari hasil penelitian khususnya tugas akhir mahasiswa fisika, atau karya ilmiah lain yang berkaitan dengan fisika. Prosedur penerbitan dalam jurnal ini melalui peer-review dan menerapkan etika penerbitan ilmiah sebagaimana ditetapkan oleh Committee on Publication Ethics (COPE). Ruang lingkup artikel dalam jurnal ini adalah ilmu fisika dan terapannya.
Arjuna Subject : Fisika dan Astronomi - Fisika dan Astronomi (Lain-Lain)
Articles 8 Documents
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Search results for , issue "Vol 5, No 2 (2016): Jurnal Fisika" : 8 Documents clear
UNDERGROUND INTERPRETATION OF POSSIBLE LANDSLIDE ZONE IN GERBOSARI VILLAGE, SAMIGALUH DISTRICT, KULONPROGO REGENCY USING GEOELECTRIC METHOD WITH DIPOLE-DIPOLE CONFIGURATION Purnama Aditya; wibowo Nugroho Budi; Darmawan Denny
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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The research aimed to identify the underlying structure of probable landslide zone in Gerbosari village, and toidentify the depth of slip plane according to resistivity value. This research was conducted using resistivity methodwith dipole-dipole configuration in Jetis subvillage, Jati subvillage and Dukuh subvillage, Gerbosari Village,Samigaluh District, Kulonprogo Regency. The main instrument used for data collecting is resistivitymeter NaniuraNRD 22 S. The scope area of the research was 1,1 x 0,5 km consisted of 3 lines of survey while the precise locationof the research lied at coordinate of 7⁰39’54,90” S to 7⁰40’20,94” S and 110⁰10’02,79 E to 110⁰10’17,00” E. Theresult of the measurement is processed using Res2dinv software that showed 2D layer. Geomorphologicalcharacteristics are dominated by clay, sandy clay, limestone and andesite rock. In the layer of line 1 at Jetissubvillage the resistivity value of slip plane is 147-489 Ωm with 7,19-8,50 meter of depth which is assumed aslayer of andesite. In the layer of line 2 at Jati subvillage the resistivity value of slip plane is 389-2171 Ω m with6,33-8,50 meter of depth which is predicted to be layer of limestone. In the third layer of line 3 at Dukuh subvillagethe resistivity value of slip plane is 315-1293 Ωm and interpreted as limestone, while the depth of the slip planehas not yet predicted.Keywords: Geoelectric, slip plane, landslide, Gerbosari
MICROTREMOR CHARACTERISTICS ON THE SURFACE OF BRIBIN UNDERGROUND RIVER, GUNUNG SEWU KARST AREA, BASED ON SPECTRAL ANALYSIS, ANALYSIS OF HORIZONTAL TO VERTICAL SPECTRAL RATIO (HVSR) CURVE, AND TIME FREQUENCY ANALYSIS (TFA) NURHANAFI KHOLIS; wibowo Nugroho Budi; Sumardi Yosaphat
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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This research aimed to determine microtremor characteristics in the area pass by Bribin Underground River and around its surface.Microtremor measured on fiveteen points on Bribin Underground Research line using Digital Portable Seismograph tools. The result of measurement recorded by three waves component and analized by Fast Fourier Transform (FFT) algoritm, and Konno-Ohmachi smoothing. Then, data were analized with Horizontal to Vertical Spectral Ratio (HVSR) and Time Frequency Analysis (TFA).The results of this research were microtremor characteristics on the surface of Bribin Underground River was determined by frequency at Fourier spectral peak of microtremor signal, these values were 0,44-0,78 Hz for EW horizontal component, 0,29-0,78 Hz for NS horizontal component, and 0,43-0,78 Hz for vertical component. Frequency of HVSR curve peak was between 1,0-15,5 Hz. Based on microtremor TFA curve of vertical component, research area was classified into two zones, and there was no spesific value which show (berkembangnya) Bribin Underground River line at research area based on frequency characteristics of Fourier spectral peak each microtremor component. The area (yang dilalui) Bribin Underground River was at 5,5-15,5 Hz based on HVSR curve analysis, and most was at zone II due to microtremor TFA curve characteristics of vertical component. Keywords: Microtremor Characteristics, Bribin Underground River
IDENTIFICATION OF GRINDULU MINOR FAULT LINES BASED ON MAGNETIC FIELD ANOMALY DATA Nurrohman Aryo Seno; wibowo Nugroho Budi; Darmawan Denny
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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AbstractThis research aimed to determine the fault direction, pattern of magnetic field anomaly and the subsurfacestructure of Grindulu minor fault in Arjosari subdistrcict. Magnetic field anomaly data acquisitons were takenfrom 19 points with 500 m grid spacing using Proton Precession Magnetometer (PPM) type G-856AX with loopingmethod. The results indicate that Grindulu minor fault has a N32˚E direction. Pattern of magnetic field in Grinduluminor fault was around -360nT to 120 nT. The subsurface structure of Grindulu Minor fault in Arjosari subdistrictwas composed by Arjosari formation and Mandalika formation dominated by rocks lava and breccia tufa withsusceptibility of 1.7 (in the SI) and 1.2 (in the SI) at the depth of (200-400) m.Keywords: Geomagnetic Method, Grindulu Minor Fault, Suseptibility, Magnetic Field Anomaly
SISTEM FILTRASI DENGAN KARBON AKTIF KAYU SENGON, KERIKIL AKTIF SUNGAI KRASAK, DAN PASIR AKTIF PANTAI INDRAYANTI PADA AIR SUMUR DI LPPMP UNY SEBAGAI AIR MINUM FILTRATION SYSTEM WITH USING ACTIVE CARBON OF SENGON WOOD, ACTIVE GRAVEL OF KRASAK RIVER, AND ACTIVE SAND OF INDRAYANTI BEACH AT WELL WATER IN THE LPPMP UNY AS THE MINERAL WATER Zulia Nur Rachma Zulia Nur Rachma; Suparno Suparno
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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AbstrakPenelitian ini bertujuan untuk mengetahui : (1) pengaruh volume absorben dan jenis absorben terhadapkejernihan air, total disolved solid (TDS), dan pH, (2) pengaruh jenis absorben terhadap kadar Fe, (3) pengaruhvariasi komposisi jenis absorben terhadap Intensitas transmisi cahaya, total disolved solid (TDS), pH, dan kadar Fe,dan (4) pengaruh daya serap sistem FAS (Filtrasi, Absorbsi, Sedimentasi) terhadap penurunan kadar total coliformdalam proses filtrasi sampel air sumur di LPPMP UNY. Penelitian ini menggunakan sistem penjernihan air FAS(Filtration, Absorbstion, and Sedimentation water purification system). Sistem ini menggunakan 5 kolom pipa danair dialirkan melalui pipa pralon. Filtrasi dan absorbsi terjadi pada semua pipa, sedangkan sedimentasi terjadi saatair mengalir ke atas. Hasil proses filtrasi ini diukur menggunakan alat transmisi cahaya lux meter untuk ujikejernihan air, dengan TDS meter digital untuk uji total zat padat terlarut, pH meter digital untuk uji derajatkeasaman, dan uji kadar Fe dan uji total coliform. Hasil penelitian menunjukkan bahwa: Efisiensi transmisi cahaya(ET) dan TDS untuk variasi volume tertinggi adalah karbon aktif kayu sengon yaitu (92±1)% dan 150 ppm. Hasilpengukuran pH konstan dari sebelum proses filtrasi dan setelah proses filtrasi, efisiensi penyerapan kadar Fetertinggi yaitu karbon aktif kayu sengon yaitu (96,88±0,32)%, ET dan TDS pada variasi komposisi jenis absorbenyang tertinggi adalah variasi karbon-karbon-pasir-pasir yaitu (90±1)% dan 151 ppm. Efisiensi penyerapanion Fetertinggi untuk variasi komposisi jenis absorben adalah karbon-pasir-pasir-kerikil dan karbon-pasir-kerikil-kerikilyaitu (93,75±0,33)%. Hasil total coliform pada karbon aktif kayu sengon menunjukkan penurunan dari210MPN/100ml menjadi 43MPN/100mlKata Kunci: karbon aktif kayu sengon, kerikil aktif sungai krasak, pasir aktif pantai indrayanti, filtrasi, absorbsi.AbstractThis research aims to reved: (1) the effect of absorbent volumes and the types, to the clarity of water, totaldisolved solid (TDS) , and pH, (2) the efeect of the types of absorbent on Fe ion concentration, (3) the effect ofcompotition variation of absorbent types on the clarity of water, TDS, pH, and Fe ion concentration, and (4) theeffect of the absorbstion on FAS system to the reduction of coliform cencentration in filtration process of wellwater in LPPMP UNY. This research uses water purification of FAS (filtration, absorbstion, and sedimendation)water purification system. This system employs 5pvc columns and the water is flowedthrouby the columns.Filtration and absorbstion occurs at all columns, while, the sedimentation occurs when the water flowes upward.The result of this filtration process was measured by the light transmission lux meter for test the clarity of water,with the pH digital meter for test the similarity of degree, and assay the fe and to test the total of coliform. Theresult showed that the highest light transmition efficiency was found to be in sengon wood activated carbon(96,88±0,32)%. This was supported by the lowest level of TDS 150 ppm. Which was found to be in the sameabsorbent the higest absorbtion efficiency of Fe ion was also found in sengon wood activated carbon (96,88±0,32).However the pH level remains constant. In terms of composition variation showed the highest light transmistionefficiency and the lowest TDS on the other hand carbon-sand-sand-gravel and carbon-sand-gravel-gravel (90±1)%and 151 ppm showed highest Fe ion absorption efficiency (93,75±0,33)%. Here pH level also remains constant.Coliform test on sengon wood activated carbon showed reduction from 210 MPN/100ml to 43 MPN/100mlKeyword: the active carbon
THE UTILIZATION OF BAMBOO ACTIVATED CARBON, INDRAYANTI BEACH ACTIVATED SAND, AND KRASAK RIVER ACTIVATED GRAVEL AS ABSORBENT ON PROCESS OF LPPMP UNY WATER PURIFICATION FOR DRINKING WATER Widiastuti Tri Widiastuti; Suparno Suparno
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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The aims of this research are to understand (1) the influence of volume and types of absorbent (bamboo activated carbon, Indrayanti beach activated sand, and Krasak river activated gravel) on light transmission efficiency (TE), TDS, and pH on LPPMP UNY water purification. (2) The influence of absorbent kinds on the absorption efficiency of Fe on LPPMP UNY water purification. (3) The influence of the absorbents composition variation on light transmission efficiency, TDS, pH, and the absorption efficiency of Fe on LPPMP UNY water purification. (4) The influence of the FAS (Filtration, Absorption, and Sedimentation) system absorption capacity on the decreases of the amount of coliform on LPPMP UNY water purification. First process of this research is carbonization of bamboo, crushing, sieving, washing, drying, and physics activation by oven heating at temperature of 200 oC for 1 hour. The second step is filtration, absorption, and sedimentation using a variation of the volume of each absorbent and volume ratio of absorbent kind composition are placed in the FAS pipe. The next step is the measurement of light transmission intensity, total dissolved solid, temperature, pH in all filtering water samples, and the measurement Fe and total coliform in given samples. The result of this research indicated that light transmission efficiency in the activated carbon, activated sand, and activated gravel on the water purification particles tends to increase, while TDS tends to decrease, and there was no cange on pH. The absorption efficiency of Fe best fit to the bamboo active carbon (90,3±0,2) %. The highest light transmission intensity could be found at the ratio of K:K:P:P (90±1) %. The TDS reach its best at the ratio K:K:Kr:Kr 141 ppm. The best absorption efficiency of Fe is at the ratio of K:K:P:P and K:K:Kr:Kr (90,3±0,2) %. The amount of coliform decreases to 0 MPN/100ml in 2450 ml sample.Keywords: absorbent, active carbon, light tranmission intensity, Fe, and coliform
AQUIFER IDENTIFICATION IN OPAK FAULT ZONE AFTER YOGYAKARTA EARTHQUAKE 2006 WITH SCHLUMBERGER CONFIGURATION GEOELECTRIC METHOD Prihastiwi Fifi; wibowo Nugroho Budi; Darmawan Denny
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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This research was aimed to determine resistivity values of aquifer constituent rocks, and todetermine aquifer characteristics and hydrostratigraphy in Opak fault zone. The location of researchwas at Opak fault line Paten subvillage, with geographical coordinate of 7°55'18,39'' S to 7°57'09,72''S and 110°19'22,26'' E to 110°22'56,06'' E. The method used was Schlumberger configurationgeoelectric method. Geoelectric method was one of the geophysics method which study earthelectricity based on the Ohm’s Law, by injecting a current through two current electrodes, thepotential different appeared from two potential electrodes can be measured. The data acquisition usedNaniura NRD 22S resistivitymeter. Number of sounding point were 3 points spaced by 10 meters andmeasurement line length was 160 meters. Measurement results were analized using curve matchingmethod by IPI2win software determine subsurface layers based on resistivity. Results showed thatresistivity aquifer constituent rocks are about 19,3-300 Ωm which are sands, gravels, sandstones rocktypes at 5-30 meters depth.Keywords: Geoelectric Method, Aquifer, Paten Subvillage
SUBSTRATE TEMPERATURE EFFECT ON ELECTRICAL PROPERTIES THIN LAYER SEMICONDUCTOR PbS, PbSe AND PbTe PREPARED BY VACUUM EVAPORATION TECHNIQUE abdul mafahir iim; sutjitno tjipto; Ariswan Ariswan
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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This research aims to produce a thin layer of semiconductor with PbS, PbSe and PbTe material  by vacuum evaporation  techniques and  to find out electrical properties of these materials. Thin layer was produced  by using vacuum evaporation  techniques. Varied  temperature of substrate is used as  parameters during  preparation,ie  without heating (sample 1), 200 ℃ (sample 2), 350 ℃ (sample 3), and 500 ℃ (sample 4). Electrical properties are characterized by  using a four point probe (FPP). Results showed that  this  thin layer of PbS, PbSe and PbTe  is  type N semiconductor with  resistivity in   Ω.cm to  Ω.cm oreder Keywords: thin layer, evaporation, electrical properties
DEVELOPING FLUID LEVEL SENSOR BASED ON NON-BEND SHAPED POLYMER OPTICAL FIBER (POF) MULIYANA IIS; Kuswanto Heru
Jurnal Ilmu Fisika dan Terapannya (JIFTA) Vol 5, No 2 (2016): Jurnal Fisika
Publisher : Prodi Fisika, Departemen Pendidikan Fisika

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This study aims to determine the effect of the height of the fluid sensing length , the effect of coating onthe cladding of the optical power output , and to determine the best sensitivity and linearity in the fluid levelsensor .Optical fiber used was Polymer Optical Fiber ( POF ) Type SH - 4001-1.3 . Polymer Optical Fiber corehas a refractive index of 1.49 and the cladding refractive index of 1,41. Treatment stripping the protectivejacket with a length of 1.5 cm , 3 cm , 4 cm , and coated with aluminum or copper cladding affects the opticalpower output. Optical power output optical power of POF detected using Optical Power Meter ( OPM ) . Thelight source used was helium neon laser with a wavelength of 632.8 nm and output power of 5 mW .The results showed that the long sensing POF affects optical power output when the height of the fluidbe changed even though the changes are very small . Coating cladding using aluminum or copper can causeweakening of POF optical power , but when coated with copper cladding has a lower attenuation thanaluminum. Best sensitivity values contained in the coated copper sensing with sensing width of 1.5 cm . Bestlinearity is sensing sensing coated aluminum with 2 cm length .Keywords : Polymer Optical Fiber ( POF ) , optical fiber sensors , fluid height

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