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Fisitek : Jurnal Ilmu Fisika dan Teknologi
Published by Universitas Islam Negeri Sumatera Utara
ISSN : 25806661     EISSN : 2580989X     DOI : -
Core Subject : Science, Education,
Computer Science & IT Education Physics
FISITEK: Jurnal Ilmu Fisika dan Teknologi is a peer-reviewed journal which covers all aspects of theoretical and practical research of physics and their use. FISITEK is published by Physics Department of Science and Technology Faculty, State Islamic University of Sumatera Utara Medan (Universitas Islam Negeri Sumatera Utara Medan), Indonesia. FISITEK appears twice a year, in February and August. FISITEK is available in electronic and print editions.
Arjuna Subject : -
Articles 83 Documents
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ANALYSIS OF PHYSICAL PROPERTIES OF GYPSUM PANELS FROM BANANA BOARD WASTE MATERIAL Ety Jumiati; Abdul Halim Daulay; Nurhayati Nurhayati
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 5, No 2 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v5i2.9982

Abstract

Abstract. Research has been carried out which aims to determine the manufacture and physical properties of gypsum panels in the manufacture of gypsum panels for home interiors using banana midrib waste which is converted into fiber. Variations in the composition of mixing gypsum flour with banana midrib fiber include: Samples (A: 0%:100%) , (B: 2%:98%), (C: 4%:96%), (D: 6%:94 %), (E: 8%: 92%), and (F: 10%: 90%) with a FAS of 0.5. The physical test parameters include: Density, Water absorption, and Thickness expansion. From the test results obtained gypsum panels that are The best is in sample B which has a density value = 1.19 g/cm3, water absorption value = 24%, a thickness expansion value = 2.53%, which has complied with SNI 01-4449-2006 on the ceiling board. Key words: Gypsum panels, banana midrib, and gypsum flour.
Analysis Of The Mechanical Properties Of Brick With The Addition Of Cotton Ety Jumiati; Nita Zahara Nasution; Abdul halim Daulay
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 4, No 2 (2020)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v4i2.9886

Abstract

AbstractIt has been done making bricks with the addition of cotton.Variations in the mixture of cement, sand and cotton are sample A (30%:70% :0%), sample B (30%:69,5%:0,5%), sample C (30%:69%:1%), sample D (30%:68,5%:1,5%), Water Cement Factor of 0,5 and dry time one day. Characteristic of the tests carried out include: compressive strength and fracture strength.Analysis of the mechanical properties of the bricks produced in sample A with a compressive strength value = 28.81 kg/cm2 and fracture strength value = 23.11kg/cm2, sample B with acompressive strength value = 26.85 kg/cm2 and fracture strength value = 22.32 kg/cm2, sample C with a compressive strength value = 25.10 kg/cm2 and fracture strength value = 15.09 kg/cm2, sample D with a compressive strength of 17.14 kg/ cm2 and a fracture strength value 15.51kg/cm2. The bricks produced namely in sample B.Keywords :Bricks, Cotton, and Cement
RELATIONSHIP BETWEEN VOLTAGE AND STRONG ELECTRIC CURRENT ON 1.5 VOLT BATTERIES WITH ADDING CASSAVA LEAVES ety jumiati; abdul halim daulay; asnitha aritonang
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 4, No 2 (2020)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v4i2.9691

Abstract

Biobattery research has been carried out using cassava leaves (Manihot Utilissima) as a substitute for carbon in some 1.5 volt batteries. And tested the voltage with the results of sample A: 1.53 volts; B: 1.54 volts; C: 1.55 volts; and D: 1.58 volts. Then the electric current was also tested with the values obtained in sample A: 0.08 mA; B: 0.10 mA; C: 0.13 mA; and D: 0.19 mA. If the carbon mass in the biobattery gets higher, the value of the voltage and electric current test results changes with the higher in each sample. By performing the performance on the cassava leaf biobattery, it is able to turn on a 2.5 watt LED lamp with 3 batteries. Keywords: Current, cassava leaves, and voltage
WENNER'S CONFIGURATION GEOELECTRIC METHOD FOR THE INTERPRETATION OF THE SUBSURFACE STRUCTURES OF PANUNGKIRAN VILLAGE Aulia Farihanum; Nazaruddin Nasution; Abdul Halim Daulay
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 4, No 2 (2020)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v4i2.9616

Abstract

A research has been carried out which aims to determine the subsurface structure using the geoelectric method in Panungkiran Village, Kab.  Deli Serdang, Prov.  North Sumatra Geoelectric data retrieval uses the Wenner configuration to determine the distribution and depth of subsurface structures in Panungkiran Village, Deli Serdang Regency.  Prov.  North Sumatra Data collection is 1 track with a length of 90 meters, Data processing in the study using MS office software Excel Notepad, and RES2DINV The results of the measurements consist of several types which are distinguished based on the range of resistivity values, namely in the range of 34.0-3188 2m interpreted by lithological layers  topsoil (34.0-65.1 Ωm), sandstone (65.1-1252 Ωm) weathered travertine limestone (125-456 Ωm), fresh trvertine limestone (456-3188 Ωm), and resistivity >3188  Qm is interpreted as a cave at a depth of 9-12 meters.
Physic properties test for variations in the addition of kelor rods (moringa oleivera) on the lis of gypsum profile Ety Jumiati; Abdul Halim Daulay; Tri Ninda Malika
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 5, No 2 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v5i2.9972

Abstract

Research on composite materials has been carried out with variations in the addition of Moringa stems to the gypsum profile trim. And tested for variations in the composition of the mixture of Moringa stem fiber and gypsum flour, including: sample A (0% : 100%), sample B (2% : 98%), sample C (4% : 96%), sample D (6% : 94%), sample E (8% : 92%), sample F (10% : 90%) with FAS 0,5. The results of the characterization of the gypsum profiles produced on the physical properties test: density of 1.00-1.24 g/cm3. The value of water absorption is 24-45%. And the thickness development value is 2.27-4.82%, which meets the value of SNI 01-4449-2006. From the research data, the best sample is sample B with a density value of 1.14 g/cm3, the water absorption value is 27%, the thickness expansion value is 3.45%.Keywords :gypsum flour, list profil gypsum, moringa fiberThere has been a study of composite materials with variations of additionsKelor bars on the gypsum profile. And testing compound variationsKelor stem fibers and gypsum flour, among others: sampela (0%: 100%),Sample b (2% 98%), sample c (4% : 966), samel d (6%: 94%), sample e (8%92%), sample f (10% 90%) with fas 0.5. The fine print is the gypsum profileProduced on the test of frisis nature: a density of 1.00-1.24 g/cm3. Power valueAbsorption of 2445% water. And 2.27-4.82% thick development value, whichEnacting value o1-4449-2006. From the research data generated that sampleBest is on sample b with a density value of 1.14 g/cm, the value of permeable water279%, thick development value 3.45%.
KAJIAN DATA SATELIT HIMAWARI-8 UNTUK ANALISIS KONDISI ATMOSFER TERHADAP KEJADIAN BANJIR Frans Gabriel Sianturi
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 5, No 2 (2021)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v5i2.10721

Abstract

ABSTRAKHujan lebat terjadi di desa Kuta limbaru, Kecamatan Kutalimbaru, Deli Serdang, Sumatera Utara tanggal 26 Juli 2020 pukul 09.00 UTC (16.00 WIB). Berdasarkan website dari Badan Nasional Penanggulangan Bencana (BNPB), kejadian ini menghanyutkan 9 orang (8 ditemukan dan 1 meninggal  dunia). Penelitian ini menggunakan data citra dan reanalisis penginderaan jauh dari Satelit Himawari-8. Data yang diperoleh diolah dengan menggunakan software SATAID dan GRADS. Data kemudian disajikan dalam bentuk grafik/time series, tabel, dan peta spasial. Hasil data berupa grafik/time series dan peta suhu puncak awan menunjukkan bahwa terjadi penurunan suhu awan ≤-50oC sehingga membentuk awan-awan konvektif berupa awan Cumulonimbus dimulai dari pukul 05.50 UTC (12.50 WIB) hingga meluruh pukul 10.30 UTC (17.30 WIB). Hasil data indeks stabilitas atmosfer di lokasi kejadian menunjukkan bahwa terjadi ketidakstabilan atmosfer sebelum terjadinya hujan lebat. Hal ini menjadi pendorong dalam mempercepat pertumbuhan awan-awan Cumulonimbus (Cb). Peta streamline angin dan vortisitas memperlihatkan bahwa terjadi pertemuan massa udara dari arah yang berbeda dan pembentukan sirkulasi aliran fluida angin siklonik sehingga menimbulkan konvergensi saat terjadinya hujan lebat.Kata kunci: Hujan Lebat, Himawari-8, SATAID, Awan Konvektif ABSTRACTHeavy rain occurred in Kuta limbbaru village, Kutalimbaru sub-district, Deli Serdang, North Sumatra on July 26, 2020 at 09.00 UTC (16.00 WIB). Based on the website of the Badan Nasional Penanggulangan Bencana (BNPB), this incident swept away 9 people (8 found and 1 person died). This study uses image data and remote sensing reanalysis from the Himawari-8 Satellite. The data obtained were processed using SATAID and GRADS software. The data is then presented in the form of graphs/time series, tables, and spatial maps. The data results in the form of graphs/time series and cloud top temperature maps show that there is a decrease in temperature of ≤-50oC so as to form convective clouds in the form of Cumulonimbus clouds starting at 05.50 UTC (12.50 WIB) until decaying at 10.30 UTC (17.30 WIB). The results of the occurrence of atmospheric index data at the location of the incident indicate that the instability of the atmosphere before heavy rains. This is the driving force for the growth of Cumulonimbus (Cb) clouds. Wind streamline maps and vortices show that the meeting of air masses from different directions and the formation of cyclonic wind fluid flow circulation, causing convergence during heavy rains.Keywords: Heavy Rain, Himawri-8, SATAID, Convective Cloud
Calculating Transmission Coefficient on Superlattice Structure Using Propagation Matrix Method Ong, Russell
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 6, No 1 (2022)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v6i1.11549

Abstract

The tunneling effect is a phenomenon where the particle can penetrate the barrier potential even though the particle energy is smaller than the barrier potential value. The probability of an electron to penetrate the barrier potential depends on the transmission coefficient. This study aims to investigate the transmission coefficient on the superlattice structure. The studied superlattice structure is formed from 12 potential barriers which are divided into two types of barriers (barrier A and barrier B). Thus, the periodicity of this superlattice is the periodicity of the two types of barrier potentials that align to each other. The transmission coefficient was calculated numerically using the matrix propagation method with the support from MATLAB R2009a software. The variations in the value of the barrier potential A are 5 eV, 10 eV, and 15 eV, while the variations in the value of the barrier potential B are 5 eV and 10 eV. Subsequently, the concept of electron effective mass is also included once in the state of barrier potential A (B) of 5 eV (10 eV). To observe clearly the miniband and minigap, the electron energies were varied from 0 eV―15 eV. The exception is when it involves the concept of electron effective mass where the electron energy is varied from 0 eV―30 eV. Based on the results of numerical computations, the graph of relation between transmission coefficient and electron energy showed that minigap and miniband are also formed in this structure. The width of the minigap from the first to next does not increase continuously, but changes iteratively from small to large and so on. When the concept of effective mass of electrons is taken into account, the electron energy range under test must be set higher so that it is clear whether the miniband and minigap are alternately formed.
ANALYSIS OF CHARACTERISTICS OF PHYLLANTHUS ACIDUS ELECTROLYTE SOLUTION AS A RENEWABLE ENERGY SOURCE Lubis, Khairiah
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 6, No 1 (2022)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v6i1.8869

Abstract

Research has been conducted which aims to: (i) produce a characterization device for Phyllanthus acidus electrolyte solution, (ii) to determine the characterization of a Phyllanthus acidus electrolyte solution. The method used is an experimental laboratory method. In this study electrolyte solutions were used which were produced from all types of cermai fruit (Phyllanthus acidus). Electrode pair variations are Cu-Zn, Cu-Al, and Cu-Pb. Variations in the volume of the solution 100, 200, 300 ml. Variations in distances of 2, 4 and 6 cm. NaCl addition concentration variations were 1.67%, 3.33%, 5.00%, 6.67%, 8.33% and 10.00%. The measurement results are the voltage and current that are tabulated and analyzed. In this study to determine the effect of adding volume using a distance of 2 cm with electrodes Cu-Zn, Cu-Al, and Cu-Pb. Measurement to determine the effect of the electrode distance is to use a 300 ml volume with Cu-Zn, Cu-Al, and Cu-Pb electrodes. Meanwhile, to determine the effect of increasing the concentration of NaCl to the solution using a 300 ml volume with a distance of 2 cm electrode and the electrode pairs Cu-Zn, Cu-Al, and Cu-Pb. From the results of research conducted the characterization device of Phyllanthus acidus electrolyte solution has been successfully made with good performance. Referring to the results and analysis as a whole, it is found that changes in volume, variation in distance, and addition of NaCl concentration give different values of current strength and voltage as well as different conductivity and solids of solutes. However, the effect of pH on increasing the volume of solution and adding NaCl tends to maintain its pH. At the addition of the volume of the solution there is a linear relationship between the addition of volume to the output electricity ie the greater the volume of the electrolyte solution of Phyllanthus acidus fruit is used, the higher the electric power produced. Whereas in electrode distance testing there is an inverse relationship between the electrode distance with the output voltage and electric current ie the closer the electrode distance the greater the value of the current and voltage produced, conversely the farther the distance between the electrodes the smaller the value of the voltage and electrical output. Likewise with the addition of NaCl concentration into the solution, the greater the concentration of NaCl the greater the voltage and current or the value of the electrical output and the greater the conductivity and solute solids in the solution. In this study, Cu-Zn electrodes are the best electrodes in producing electrical output values compared to Cu-Al and Cu-Pb electrodes. 
ANALYSIS OF PEAK GROUND ACCELERATION (PGA) VALUE DISTRIBUTION BASED ON MICROTREMOR DATA IN THE OFFICE REGION OF NORTH KONAWE Laksana, Nidya Lena; Said, Muh; hernawati, hernawati; wahyuni, ayusari
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 6, No 1 (2022)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v6i1.11709

Abstract

Penelitian ini bertujuan mengetahui sebaran nilai Peak Ground Acceleration berdasarkan data mikrotremor di wilayah perkantoran Konawe Utara. Penelitian ini menggunakan metode HVSR untuk mendapatkan frekuensi dominan, faktor amplifikasi, periode dominan, indeks kerentanan seismik dan percepatan gerakan tanah. Hasil yang diperoleh dari pengolahan data mikrotremor adalah sebaran nilai frekuensi dominan dalam kategori tinggi pada titik pengukuran K1, K2, K5, K6, K9 dengan rentang nilai 6,69-7,57 Hz, faktor amplifikasi pada kategori rendah berada pada titik pengukuran K8 dengan rentan 2,8, periode dominan pada kategori rendah berada pada titik pengukuran K1, K2, K5, K6, K8 dan K9 dengan nilai rentan 0,13-0, 19 detik, indeks kerentanan seismik kategori rendah berada pada titik pengukuran K2, K5, K6, K8, dan K9 dengan rentang nilai 1,49-1,67 dan nilai PGA titik pengukuran K1-K9 termasuk dalam kategori rendah yaitu skala II dengan rentang nilai 23,24-23,31 gal. Sehingga dapat disimpulkan bahwa daerah penelitian ini termasuk dalam kategori tingkat bahaya seismik rendah.
PRELIMINARY STUDY OF WASTE UTILIZATION OF DRIED BANANA LEAVES AS FOOD CONTAINER WITH VARIOUS TYPES OF ADHESIVE Aminah, Aminah; Hernawati, Hernawati; wahyuni, ayusari
FISITEK: Jurnal Ilmu Fisika dan Teknologi Vol 6, No 1 (2022)
Publisher : Universitas Islam Negeri Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30821/fisitekfisitek.v6i1.8684

Abstract

Research has been conducted entitled utilization of dried banana leaf waste as a food container with various types of adhesives. This study aims to find out the physic quality of food containers. The research method carried out was the method of analysis of food containers by testing the absorption of water with normal temperature of water and silenced for 60 minutes and for the resistance test of the container based on temperature parameters of 40ºC, 60ºC and 80ºC which in the test was silenced for 30 minutes. Both tests were given a water volume of 125 ml. From the test results of dry banana leaf containers with adhesive types of tapioca flour and sago flour has changed but can still be used and jackfruit rubber adhesive does not undergo a change in shape so that it can be used as a food container as well as synthesis adhesives do not undergo a change in shape but in its testing produces a pungent smell meaning food containers from synthetic adhesives can not be used as food containers. 

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