Jurnal Fisika : Fisika Sains dan Aplikasinya最新文献

PERMODELAN DAN ESTIMASI ENDAPAN NIKEL LATERITE PADA BLOCK CHARLIE DI PT TIMAH EKSPLOMIN UNIT NIKEL KABAENA KECAMATAN KABAENA BARAT, KABUPATEN BOMBANA, PROVINSI SULAWESI TENGGARA

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-07-02 DOI: 10.35508/fisa.v8i1.11937

Woro Sundari

{"title":"PERMODELAN DAN ESTIMASI ENDAPAN NIKEL LATERITE PADA BLOCK CHARLIE DI PT TIMAH EKSPLOMIN UNIT NIKEL KABAENA KECAMATAN KABAENA BARAT, KABUPATEN BOMBANA, PROVINSI SULAWESI TENGGARA","authors":"Woro Sundari","doi":"10.35508/fisa.v8i1.11937","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11937","url":null,"abstract":"The research area located in Baliara Village, West Kabaena District, Bombana Regency, Southeast Sulawesi Province has the potential for laterite nickel minerals that are quite prospect for mining. This is supported by the exploration and modeling of ore bodies which is the initial stage for mining. Exploration activities include drilling activities at locations that are suspected to have prospective laterite nickel ore content and conducting sample analysis in the laboratory, to determine the estimated levels at the research site. Modeling of the ore body was carried out to determine the shape of the ore body of laterite nickel ore at the research site. The modeled ore body will be a reference in carrying out mining activities. Exploration activities begin with drilling at the research site. The number of boreholes taken is 105 boreholes with a distance between boreholes of approximately 50 meters. The depth of the borehole ranges from 4.2 meters to 32 meters from the surface. For laboratory sample tests, samples are taken every 1 meter depth from each borehole. Using the conventional method, namely polygon, the area of influence in the calculation of nickel lateri resources in the Charlie Block, the tonnase is around 1195594.9 tons. Using surpac software the tonnase magnitude on Block Charlie is 3279775.4 Tons.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"3 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126145603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PEMODELAN DUA DIMENSI (2D) BAWAH PERMUKAAN PULAU ADONARA DENGAN DATA ANOMALI GRAVITASI 亚多尼拉岛表面以下的二维模型与重力异常数据

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11819

K. K. Lesu, Jehunias Leonidas Tanesib, Bernandus Bernandus

引用次数: 0

IDENTIFIKASI KANDUNGAN CaCO3 DALAM BATUAN KAPUR DI DESA MANULAI I MENGGUNAKAN METODE XRF DAN XRD 使用XRF和XRD方法识别MANULAI I石灰石中的CaCO3含量

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11825

Kristantia Mida Subah, R. K. Pingak, Minsyahril Bukit, A. Johannes

引用次数: 0

ESTIMASI INTENSITAS RADIASI MATAHARI DENGAN MENGGUNAKAN JARINGAN SYARAF TIRUAN BACKPRPAGATION DI KOTA JAYAPURA 通过在查亚普拉市使用模拟神经网络进行太阳辐射强度评估

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11823

Presli Panusunan Simanjuntak, Krisnandi Pandu Wibowo

{"title":"ESTIMASI INTENSITAS RADIASI MATAHARI DENGAN MENGGUNAKAN JARINGAN SYARAF TIRUAN BACKPRPAGATION DI KOTA JAYAPURA","authors":"Presli Panusunan Simanjuntak, Krisnandi Pandu Wibowo","doi":"10.35508/fisa.v8i1.11823","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11823","url":null,"abstract":"Eastern Indonesia has enormous potential for solar energy. For the utilization of this energy, data on the intensity of solar radiation is needed that can describe the availability of solar energy that can be utilized. Information on the availability of solar energy will be used to estimate the intensity of solar radiation, so that the use of solar energy can be optimal. In this study, the intensity of solar radiation was estimated. The data used to estimate the intensity of solar radiation were air temperature, humidity, duration of solar radiation, and rainfall. The method used in this study is an artificial neural network (ANN) with backpropagation training. This study uses variations in the number of neurons in 1 hidden layer to get the best group based on the RMSE value and correlation. The best group from each training simulation is then used to estimate solar radiation. The estimation results for the city of Jayapura have an RMSE value of 1,970 kWh/m2. The solar radiation received in the Jayapura area has a high enough potential to be used as alternative energy with an average monthly radiation value of 4,5 kWh/m2.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126605156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

PERANCANGAN BODI MOTOR MENGGUNAKAN SERAT LONTAR DENGAN METODE VDI 2222 发动机外壳采用VDI 2222法的弹射纤维设计

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11828

Jefrianus Bere, Jefri S. Bale, Rima Nindia Selan

引用次数: 0

ESTIMASI SEBARAN AIR LINDI BAWAH PERMUKAAN BERDASARKAN DATA ELEKTROMAGNETIK PADA AREA TEMPAT PEMBUANGAN AKHIR (TPA) NOINBILA KABUPATEN TIMOR TENGAH SELATAN

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11827

H. I. Sutaji, H. Sianturi, Ali Warsito

{"title":"ESTIMASI SEBARAN AIR LINDI BAWAH PERMUKAAN BERDASARKAN DATA ELEKTROMAGNETIK PADA AREA TEMPAT PEMBUANGAN AKHIR (TPA) NOINBILA KABUPATEN TIMOR TENGAH SELATAN","authors":"H. I. Sutaji, H. Sianturi, Ali Warsito","doi":"10.35508/fisa.v8i1.11827","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11827","url":null,"abstract":"This research study is the determination of estimated distribution of subsurface leachate based on electromagnetic data in the Noinbila Final Disposal Site (TPA) area and its surroundings in South Central East Regency. The data used in the form of conductivity and susceptibility values of the measurement results of the GF instrument CMD-4 at coordinate points at certain elevations. The data is processed and displayed in 2D and 3D contour maps with the help of several related software. The results of the analysis provide information that the Noinbila landfill area and its surroundings which are divided into areas A, B, C, D, E and F are not all polluted by leachate below the surface, but only areas D and F are suspected to be polluted. The potential for contamination of areas A, B, C and E below the surface is still possible because these areas have subsurface geology in the form of coral limestone. The potential for this pollution, apart from below the surface, is also possible on the surface because areas A, B, C and E have a lower elevation dominance than areas D and F. For this reason, this potential must be avoided by optimally handling and managing waste. If the handling and management of the waste is related to the efforts of the Noinbila TPA management, then it has been done even though it is still not optimal. The form of handling efforts as a form of waste management is in the form of matters related to the maintenance and repair of the TPA and its facilities and infrastructure, handling of waste before and after at the TPA and leachate water flow through pipelines to the holding pond, stabilization pond and leachate treatment pond.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"30 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120908079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

RANCANG BANGUN ALAT DESTILASI AIR LAUT MENGGUNAKAN TENAGA MATAHARI SEBAGAI ALTERNATIF PENYEDIAAN AIR BERSIH

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11822

Dewahastu Gaib, A. Arbie, Dewa Gede eka Setiawan

{"title":"RANCANG BANGUN ALAT DESTILASI AIR LAUT MENGGUNAKAN TENAGA MATAHARI SEBAGAI ALTERNATIF PENYEDIAAN AIR BERSIH","authors":"Dewahastu Gaib, A. Arbie, Dewa Gede eka Setiawan","doi":"10.35508/fisa.v8i1.11822","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11822","url":null,"abstract":"Unfortunately, there has been a great worry about clean and healthy water for human consumption lately. Even though 2/3 of the earth's surface is covered by water, the access to safe water is only concentrated in certain areas. In Indonesia, water scarcity is increasing each year. Recent data on freshwater resources possessed by all countries in the world shows that Indonesia is ranked 51st with the highest risk of water scarcity (40-80%). There are several methods to gain access to safe water, one of which is the use of distillation equipment. This research aims to produce a design of freshwater distillation equipment from seawater by utilizing solar radiation towards the quantity of freshwater and to determine the quality of freshwater from the results of distillation which include water pH, salinity, and TDS tests. The research method is done by heating sea water in the distillation equipment using solar radiation. Findings reveal that the average solar intensity of 1608.25 (lux) and the ambient temperature of 38.5 °C can produce an average volume of freshwater of 336.75 ml per day from the incoming seawater volume of 2000 ml. The water quality produced has a pH of 6.5, a salinity of 0.2 ppt, and a TDS of 152 mg/L.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"352 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131492967","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

VISUALISASI FENOMENA HARMONIS DAN CHAOS PADA GETARAN TERGANDENG BERBASIS KOMPUTASI NUMERIK RUNGE KUTTA 可视化现象和谐和混乱基于RUNGE KUTTA的计算数字振动

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11817

Leonora L. R. Trifina, Ali Warsito, L. A. S. Lapono, Andreas Ch. Louk

{"title":"VISUALISASI FENOMENA HARMONIS DAN CHAOS PADA GETARAN TERGANDENG BERBASIS KOMPUTASI NUMERIK RUNGE KUTTA","authors":"Leonora L. R. Trifina, Ali Warsito, L. A. S. Lapono, Andreas Ch. Louk","doi":"10.35508/fisa.v8i1.11817","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11817","url":null,"abstract":"Research has been carried out on the visualization of harmonic and chaos phenomenont on coupled vibration physcal case using the Runge Kutta numerical computation method with the aim of applying the first to fourth order Runge Kutta computation method to obtain a second order differential equation solution on coupled vibration system, calculating the displacement value of objects using computation method Runge Kutta order first to fourth, obtained a graph of the displacement of objects againts time in case of coupled vibration for harmonic and chaos states at certain step width values and compare the convergence of the Runge Kutta method from first to fourth order with the special analytical method. The solution of coupled vibration equation which is classified as a second order differential equation was quite difficulted to solve analytically, so the Runge Kutta computation method was used to solve it as an alternative solution. The results of the research showed that the harmonic state of the system was obtained when the displacement graph showed the motion of each pendulum which was constant with the pendulum displacement position with respect to time in the form of a sinusoidal graph at a value of C1 = 40 N/m, C2 = 30 N/m, C = 10 N/m, C = 0 N/m and the chaotic state was represented by a graph of the displacement of the pendulum with respect to time with an irregular pattern. In this case, it was found that the fourth order Runge Kutta method converged faster than the first to third order Runge Kutta method with the best results obtained at a step width value of 0,001. The fourth order Runge Kutta method also has a smaller approximation average error value from first to third order Runge Kutta method was on the fourth order Runge Kutta method and the avarage error values are , and on the Runge Kutta method of first to third order.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"153 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126644882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MENENTUKAN NILAI PERIODE, AMPLITUDO, FREKUENSI DAN MEMVISUALISASI GETARAN HARMONIK PADA PEGAS DALAM BENTUK GELOMBANG 确定波形弹簧内谐波振动的周期值、振幅、频率和可视化

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11820

Heri Rismawan, Muktamar Cholifah Aisiyah

{"title":"MENENTUKAN NILAI PERIODE, AMPLITUDO, FREKUENSI DAN MEMVISUALISASI GETARAN HARMONIK PADA PEGAS DALAM BENTUK GELOMBANG","authors":"Heri Rismawan, Muktamar Cholifah Aisiyah","doi":"10.35508/fisa.v8i1.11820","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11820","url":null,"abstract":"Simple harmonic motion is motion back and forth regularly through an equilibrium point with the number of vibrations in every second always the same or constant. This experiment focuses on one example of an elastic object, namely a spring. The response of the spring to the force is indicated by the increase in the length of the spring. The background of this harmonic vibration experiment is to explain the process of harmonic vibration of a spring which is visualized in waves with the aim of explaining the harmonic vibration of a spring which is visualized in a wave. The data collection method in this experiment only used 1 load, namely 2 variations of springs (single spring and series spring) with a distance of 2 cm, 4 cm, and 6 cm. Different values of A, y0, and c are obtained. From all the data that has been processed using the Orgin Arduino software application, it can be seen that the value of the amplitude is 0.46 cm-6.23 cm. The period value is 10.6 seconds-17.9 seconds and the frequency is 0.05 Hz-0.09 Hz. In addition, the initial phase value of -0.08 to -4.96 was also obtained. From the results of this experiment, the spring that has the largest amplitude value of 6.23 cm is a variation of the series spring with a deviation of 6 cm. While the spring which has the greatest period, frequency, and initial phase values is the variation of spring 1 with a deviation of 4 cm. Based on the experimental results show that, the vibrations that occur in the spring are different in the form of waves. This is because the distance and the spring used during the experiment affect the shape of the waves that occur.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124405427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

KOMBINASI UV SOLAR DRYER DAN SOLAR AIR HEATER UNTUK PENGERINGAN IKAN Kombinasi紫外线太阳能干燥器和太阳能空气加热器

Jurnal Fisika : Fisika Sains dan Aplikasinya Pub Date : 2023-04-27 DOI: 10.35508/fisa.v8i1.11829

G. Gusnawati, Verdy A. Koehuan, Laurensius Longo Sogen

{"title":"KOMBINASI UV SOLAR DRYER DAN SOLAR AIR HEATER UNTUK PENGERINGAN IKAN","authors":"G. Gusnawati, Verdy A. Koehuan, Laurensius Longo Sogen","doi":"10.35508/fisa.v8i1.11829","DOIUrl":"https://doi.org/10.35508/fisa.v8i1.11829","url":null,"abstract":"Fish as a source of animal protein is a fishery commodity that is prone to quality deterioration and spoilage after the fish is caught, so it needs fast, precise and correct handling to keep its quality in the hands of consumers. There for it is necessary to have a process that extends the durability through drying. One drying alternative is to use a Solar Air Heater with an Ultra Violet (UV) Solar Dryer drying house by making a building made of transparent material that functions as an insulator so that the solar irradiation trapped in the building will increase its temperature. The accumulated heat is used to dry the fish. Sardines that have just been displayed are put into the drying chamber with various loads of 22.23 kg, 14.82 kg and 7.41 kg. The energy source for drying is from sunlight with the Solar Air Heater system. The results show that drying efficiency and thermal efficiency increase with the addition of drying load. The highest values of drying efficiency and drying house efficiency occurred at the mass load of 22.23 kg of fish at 13.17% and 50.57% with the lowest specific energy consumption (KES) of 18947.421 kJ/kg. The average temperature and temperature difference both in the solar air heater and in the drying chamber increase with the addition of the drying load. This temperature increase increases the drying rate which can reduce the drying time.","PeriodicalId":367071,"journal":{"name":"Jurnal Fisika : Fisika Sains dan Aplikasinya","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127255142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0