Jurnal Teori dan Aplikasi Fisika最新文献_第2页

Simulasi Model Material Tanah Pada Bidang Gelincir Longsor Dengan Variasi Sudut Kemiringan (Studi Kasus Material Tanah di Daerah Kabupaten Gorontalo Utara) 坡角变化的滑坡滑动场土壤材料模型模拟（北戈隆塔罗地区土壤材料案例研究）

Jurnal Teori dan Aplikasi Fisika Pub Date : 2024-01-27 DOI: 10.23960/jtaf.v12i1.3207

Rabiyatul Hajar Saleng, A. Arbie, Dewa Gede Eka

{"title":"Simulasi Model Material Tanah Pada Bidang Gelincir Longsor Dengan Variasi Sudut Kemiringan (Studi Kasus Material Tanah di Daerah Kabupaten Gorontalo Utara)","authors":"Rabiyatul Hajar Saleng, A. Arbie, Dewa Gede Eka","doi":"10.23960/jtaf.v12i1.3207","DOIUrl":"https://doi.org/10.23960/jtaf.v12i1.3207","url":null,"abstract":"Landslides are one of the geological disasters that often occur in Indonesia. North Gorontalo is an area where landslides occur every year. Based on data from the 2022 Badan Penanggulangan Bencana Daerah (BPBD), in the last year, there were 8 landslides. Landslides can occur due to several factors, namely; human factors and natural factors. In principle, landslides occur when the restraining force is less than the driving force. In this study a landslide simulation will be carried out using a simulation model made on a lab scale, the size of the simulation model is 40 cm x 30 cm x 25 cm. The simulation was carried out using soil samples taken at the research location. Variables that were observed during the simulation were the effect of the slope angle (o) on the exiting water (ml), the water infiltration time (t), and the effect of the slope (o) on the depth of the slip plane (cm). The soil taken from the research location will be subjected to a sieving analysis test with a hydrometer test to determine the texture class of the soil. From the soil texture test results, some of the research locations have a sand-gravel type of texture. The simulation test carried out also obtained the result that the slope of the slope greatly influences the water infiltration time with the depth of the slip plane. The greater the angle of the slope of the sled that is carried out, the results of the variable being measured will also be directly proportional.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"40 4-5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140492328","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

Analisis Kuantum pada Rangkaian LC dengan Pendekatan Fungsi Gelombang Radial Persamaan Schrȍdinger Potensial Osilator Harmonik 用径向波函数方法对 LC 电路进行量子分析谐振子的 Schrȍdinger 等式势垒

Jurnal Teori dan Aplikasi Fisika Pub Date : 2024-01-27 DOI: 10.23960/jtaf.v12i1.14181

Cecilia Yanuarief

{"title":"Analisis Kuantum pada Rangkaian LC dengan Pendekatan Fungsi Gelombang Radial Persamaan Schrȍdinger Potensial Osilator Harmonik","authors":"Cecilia Yanuarief","doi":"10.23960/jtaf.v12i1.14181","DOIUrl":"https://doi.org/10.23960/jtaf.v12i1.14181","url":null,"abstract":"Telah dilakukan analisis teoritik pada rangkaian LC dengan kapasitor dan induktor penyusunnya memiliki dimensi yang sangat kecil serta nilai kapasitansi dan induktansi rangkaian dalam orde 10-18 satuan. Analisis secara teoritik ini dilakukan atas dasar hipotesis bahwa tidak hanya energi elektromagnetik yang tersimpan dalam rangkaian LC terkuantisasi dalam bentuk foton, namun rangkaian LC yang disusun dari kapasitor dan induktor berukuran atomik juga akan menampakkan sekumpulan fenomena probabilistik yang direpresentasi oleh fungsi gelombang dalam mekanika kuantum. Rangkaian LC memperlihatkan fenomena osilasi arus listrik rangkaian dan muatan kapasitor, sehingga rangkaian LC dianalogikan sebagai osilator harmonik kuantum. Pemilihan potensial sentral tiga dimensi sebagai potensial osilator harmonik yang realistik meniscayakan persamaan Schrȍdinger potensial osilator harmonik dinyatakan menggunakan sistem koordinat bola dan mengalami separasi variabel sedemikian rupa sehingga diperoleh persamaan differensial orde dua bagian radial dan bagian angular dengan solusi masing-masing adalah fungsi gelombang radial dan fungsi gelombang angular. Persamaan energi osilator harmonik memiliki bentuk serupa dengan persamaan energi elektromagnetik rangkaian LC, sehingga sejumlah variabel dan observable operator dari persamaan energi osilator harmonik dapat dianalogikan dengan sejumlah variabel dan observable operator dari persamaan energi elektromagnetik rangkaian LC. Analogi tersebut digunakan ketika melakukan substitusi variabel pada fungsi gelombang radial persamaan Schrȍdinger potensial osilator harmonik menjadi fungsi gelombang rangkaian LC. Hasil visualisasi fungsi gelombang rangkaian LC untuk enam level energi terendahnya menggambarkan sebaran rapat probabilitas dan probabilitas terbesar terjadinya induktansi pada kondisi tertentu muatan kapasitor, yang bervariasi seiring dengan variasi level energi dan bilangan kuantum orbital. Kata kunci: Rangkaian LC, Osilator Harmonik, Persamaan Schrödinger.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"18 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140492051","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

Analisis Distribusi Dosis Terapi Proton dengan Kolimator Pencil Beam pada Kanker Limfoma Orbita menggunakan Software MCNP6 利用 MCNP6 软件分析采用铅笔束准直器的质子疗法在眼眶淋巴瘤癌症上的剂量分布

Jurnal Teori dan Aplikasi Fisika Pub Date : 2024-01-27 DOI: 10.23960/jtaf.v12i1.13743

Ike Septiani Prastika, Suharyana Suharyana

{"title":"Analisis Distribusi Dosis Terapi Proton dengan Kolimator Pencil Beam pada Kanker Limfoma Orbita menggunakan Software MCNP6","authors":"Ike Septiani Prastika, Suharyana Suharyana","doi":"10.23960/jtaf.v12i1.13743","DOIUrl":"https://doi.org/10.23960/jtaf.v12i1.13743","url":null,"abstract":"Telah dilakukan simulasi perhitungan didtribusi dosis pada kanker limfoma orbita dengan software MCNP6. Daaerah penyinaran sel kanker dipresentasikan sebagai bentuk rubik dan dibagi menjadi 27 kubikel dengan ukuran 3x3x3 yang ditempatkan di kelopak mata. Penyinaran dilakukan 3 kali pada titik penyinaran yang digeser sejajar dengan sumbu x, 3 variasi arah setiap penyinaran, dan 3 variasi energi untuk setiap titik penyinaran. Titik penyinaran pertama menggunakan energi 9,5 MeV; 8,6 MeV; dan 6,4 MeV, titik penyinaran kedua menggunakan energi 9,3 MeV; 8,78 MeV; 6,5 MeV, dan titik penyinaran ketiga menggunakan energi 9,3 MeV; 8,8 MeV; dan 6,45 MeV. Dengan melakukan running data 9 kali pada masing-masing energi dapat mencapai nilai isodosis sebesar 97,2% dengan selisih relatif kubikel kurang dari 10%. Rata-rata persebaran distribusi dosis per proton adalah (8110,00 ± 0,44) MeV/gram. Dosis sekunder neutron, foton, dan elektron dan dosis proton yang dihasilkan pada organ sehat sangat kecil dan masih berada di bawah batas toleransi Organ At Risk (OAR). Dengan arus yang digunakan 0,16 nA durasi waktu seluruh penyinaran adalah (0,53 ± 0,01) ms.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"10 4-5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140493067","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

Karakterisasi Bolus Berbahan Campuran Beeswax dan Petroleum Jelly Menggunakan Berkas Elektron Pada Energi 6 MeV dan 9 MeV 在 6 兆电子伏特和 9 兆电子伏特能量下使用电子束分析蜂蜡和凡士林混合物制成的玻流体的特性

Jurnal Teori dan Aplikasi Fisika Pub Date : 2024-01-27 DOI: 10.23960/jtaf.v12i1.3205

Rico Adrial

{"title":"Karakterisasi Bolus Berbahan Campuran Beeswax dan Petroleum Jelly Menggunakan Berkas Elektron Pada Energi 6 MeV dan 9 MeV","authors":"Rico Adrial","doi":"10.23960/jtaf.v12i1.3205","DOIUrl":"https://doi.org/10.23960/jtaf.v12i1.3205","url":null,"abstract":"In radiotherapy cases of cancer on the surface of the skin generally use electron beams. The electron beam has not been able to provide the optimum surface radiation dose. Therefore, a material that is able to increase the dose of surface radiation is needed, which is called a bolus. This study tested a bolus made from a mixture of beeswax and petroleum jelly. The bolus test includes the determination of density, the value of Relative Electron Density (RED) and the determination of the absorbed dose. The absorbed dose value was obtained by irradiating using a Linear Accelerator (LINAC) at 6 MeV and 9 MeV energies. The RED value was obtained from the bolus tomography image using a CT-simulator by determining the Region of Interest (ROI). The bolus density values obtained from physical measurements using the TPS program have almost the same average density values. The RED bolus value obtained at a thickness of 0.2 cm to 0.8 cm has a lower RED value than the RED value of the breast, which is 0.976. However, at 1.0 cm thickness, the RED value is equivalent to breast tissue. The value of the absorbed dose in a bolus made from a mixture of beeswax and petroleum jelly, the thicker the bolus used, the smaller the increase in the absorbed dose. The results of this study indicate that a bolus made from a mixture of beeswax and petroleum jelly can be the choice of bolus material during radiotherapy.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"4 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140492663","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

Analisis Pengaruh Ukuran Lantai Muatan Timbangan Terhadap Nilai Error Pada Pengujian Eksentrisitas Timbangan Elektronik Sesuai OIML R76 根据 OIML R76 分析地板尺寸对电子秤偏心率测试误差值的影响

Jurnal Teori dan Aplikasi Fisika Pub Date : 2024-01-27 DOI: 10.23960/jtaf.v12i1.14193

Geston Bakti Muntoha

{"title":"Analisis Pengaruh Ukuran Lantai Muatan Timbangan Terhadap Nilai Error Pada Pengujian Eksentrisitas Timbangan Elektronik Sesuai OIML R76","authors":"Geston Bakti Muntoha","doi":"10.23960/jtaf.v12i1.14193","DOIUrl":"https://doi.org/10.23960/jtaf.v12i1.14193","url":null,"abstract":"The use of high-intensity non-automatic weighing instruments can cause users to overlook the load's location during weighing. However, electronic non-automatic weighing instruments maintain measurement accuracy regardless of the load's position. This study aims to analyze the effect of load receptor size on error values when testing non-automatic weighing instruments eccentricity using the OIML R-76 recommended method. Testing the eccentricity of electronic non-automatic weighing instruments with the same construction model, load cell, and indicator but different load receptor sizes can affect the non-automatic weighing instruments' error values. The largest error value on Instrument A, with a load floor size of 40x30cm, is -0.025kg at test point 4. On Instrument A, the smallest error value at test points 1, 2, and 5 is -0.005kg. On Instrument B, with a load floor size of 60x50cm, the largest error value at test points 1 and 4 is -0.005kg, respectively. At test points 2-3-5, the smallest error value on Instrument B is 0kg. The average error on Instrument A is -0.01kg, while on Instrument B it is 0kg. The size of the load receptor affects the increase in the error value of a non-automatic weighing instrument, with larger load receptor resulting in greater error values, even if the construction design of the load receptor support is the same.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"55 7","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140491986","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

Identifikasi Struktur Kerak Di Bawah Permukaan Jawa Timur Berdasarkan Hasil Tomografi Seismik Menggunakan Model Kecepatan Gelombang P Dan Gelombang S 根据地震层析成像，通过P波和S波的速度模型识别东爪哇表面的地壳结构

Jurnal Teori dan Aplikasi Fisika Pub Date : 2023-07-24 DOI: 10.23960/2fjtaf.v11i2.12306

Ulin Ulfa, Rahmawati Fitrianingtyas, Yohana Noradika Maharani, Adhi Wibowo

{"title":"Identifikasi Struktur Kerak Di Bawah Permukaan Jawa Timur Berdasarkan Hasil Tomografi Seismik Menggunakan Model Kecepatan Gelombang P Dan Gelombang S","authors":"Ulin Ulfa, Rahmawati Fitrianingtyas, Yohana Noradika Maharani, Adhi Wibowo","doi":"10.23960/2fjtaf.v11i2.12306","DOIUrl":"https://doi.org/10.23960/2fjtaf.v11i2.12306","url":null,"abstract":"Tectonic conditions that are vulnerable to earthquakes have become a trigger for researchers to conduct studies on subsurface conditions in East Java. A seismic tomographic study based on the P-wave and S-wave velocity models was applied to identify crustal structures in East Java. The research data totaled 3,893 earthquake events and 28 stations from the Meteorology, Climatology and Geophysics Agency (BMKG) in the 2009-2017 period covering coordinates 5oSL- 11oSL and 110o - 115o EL. The modeling results in this study are expressed in velocity perturbations against the ak135 one-dimensional reference velocity between -5% to 5%. The results of this study indicate that in the central of East Java, there is a negative velocity anomaly which is identified as a sedimentary layer that fills the basin in the Kendeng Zone and volcaniclastic deposits in the Southern Mountains Zone to a depth of 5 km. The dominant negative velocity anomaly in southern East Java is associated with the presence of intrusive and bedrock in the Southern Mountain Zone. The transition zone between the crust and upper mantle in East Java is observed at a depth of 35 km below the surface.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122657148","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

Identifikasi Sebaran Asap Kebakaran Hutan di Wilayah Jambi dengan Menggunakan Radar C-BAND

Jurnal Teori dan Aplikasi Fisika Pub Date : 2023-07-24 DOI: 10.23960/2fjtaf.v11i2.3087

Ekky Amiral Faqi, Kholis Nur Cahyo, Imma Redha Nugraheni

{"title":"Identifikasi Sebaran Asap Kebakaran Hutan di Wilayah Jambi dengan Menggunakan Radar C-BAND","authors":"Ekky Amiral Faqi, Kholis Nur Cahyo, Imma Redha Nugraheni","doi":"10.23960/2fjtaf.v11i2.3087","DOIUrl":"https://doi.org/10.23960/2fjtaf.v11i2.3087","url":null,"abstract":"Forest and land fires along with the distribution of smoke are one of the disasters threats in the Jambi region which has tropical forests. By knowing the lowest level of visibility from observations, this study was conducted on September 23, 2015. Weather and satellite radar have ability to detect particles and the distribution of smoke from forest and land fires with great spatial and temporal resolution, supported by HIMAWARI-8 satellite data as comparison. C-Band Doppler radar and default strategy scanning are used to identify smoke in Jambi. Wind layer analysis uses CAPPI V products to display smoke distribution and CMAX dBZ with palette changes to identify smoke particles, which then will be carried out vertical cross section to see smoke reflectivity values, identify smoke vertical profiles, and patterns of smoke distribution of forest and land fires. The smoke reflectivity index value can be seen from the dBZ value. The results of the identification show that the smoke material reaches a maximum reflectivity value of 30 dBZ at the centre of the fire point and the minimum value of very fine smoke particles reaches -24.4 dBZ which scattered with the dominant velocity distribution direction to the northwest.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125960385","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

Real-time Visualisasi Temperatur Pada NTC Sensor Array menggunakan Metode Interpolasi Gaussian berbasis Python NTC传感器阵列上的实时可视化温度使用了一种以Python为基础的加大调谐方法

Jurnal Teori dan Aplikasi Fisika Pub Date : 2023-07-24 DOI: 10.23960/2fjtaf.v11i2.12465

J. Joni, S. Sabar, Kisna Pertiwi, M. Ikhsanudin, Leonard Sinambela

{"title":"Real-time Visualisasi Temperatur Pada NTC Sensor Array menggunakan Metode Interpolasi Gaussian berbasis Python","authors":"J. Joni, S. Sabar, Kisna Pertiwi, M. Ikhsanudin, Leonard Sinambela","doi":"10.23960/2fjtaf.v11i2.12465","DOIUrl":"https://doi.org/10.23960/2fjtaf.v11i2.12465","url":null,"abstract":"Thermal camera technology has been rapidly advancing in the process of remotely measuring temperature. In addition, thermal cameras can also be used to detect gas, water, and other fluid leaks by measuring the temperature changes in the measured object, such as water pipes within walls that cannot be seen directly with the naked eye. However, thermal cameras have limitations in directly measuring dynamic temperature, such as in electric motors mounted on engine blocks. Moreover, there is a need for acquiring data on temperature changes that can be stored and displayed in real-time. The aim of this research is to develop a basic prototype capable of measuring the temperature of the target object and displaying it directly, with the displayed data also being stored in a database. The hardware used for measurements in this study consists of an array of 36 NTC sensors, which are read by the ADC on each ESP-12K microcontroller. The measured data is sent from the microcontroller to the computer via serial communication in the form of voltage values, which are then converted into resistance and temperature values on the computer. For the temperature array visualization process, the author uses Python programming language and the Gaussian Interpolation method.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"4 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116744237","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 Numerik Hubungan Pola Curah Hujan Wilayah Equatorial di Pulau Sumatera Terhadap Fenomena ENSO dan IOD

Jurnal Teori dan Aplikasi Fisika Pub Date : 2023-07-24 DOI: 10.23960/2fjtaf.v11i2.6593

Melly Ariska, Adam Darmawan, H. Akhsan, Supari Supari, Muhammad Irfan, Iskhaq Iskandar

{"title":"Pemodelan Numerik Hubungan Pola Curah Hujan Wilayah Equatorial di Pulau Sumatera Terhadap Fenomena ENSO dan IOD","authors":"Melly Ariska, Adam Darmawan, H. Akhsan, Supari Supari, Muhammad Irfan, Iskhaq Iskandar","doi":"10.23960/2fjtaf.v11i2.6593","DOIUrl":"https://doi.org/10.23960/2fjtaf.v11i2.6593","url":null,"abstract":"A numerical modeling has been built for the relationship between rainfall in the equatorial region of Sumatra to the ENSO and IOD phenomena by taking data from 1991 to 2020 at three stations located in the western region of Sumatra Island, namely SM Japura, SM Minangkabau and SM Hang Nadim. The method used in this study is the method of correlation and linear regression on the Niño3.4 Index variable and the Dipole Mode Index on the amount of rainfall. The data visualization process is carried out with the output in the form of plots and graphs with Goole Colab coding. The resulting graph is a graph of the ENSO and IOD phenomena, as well as a regression graph between The Niño3.4, DMI and the amount of rainfall per month. This study was conducted with the aim of knowing how much influence the El Niño Southern Oscillation (ENSO) variable represented by the Niño3.4 Index and the Indian Ocean Dipole (IOD) represented by DMI had on rainfall in the equatorial region in the 1991 – 2020 period and to see the trend of significance between the two towards the equatorial region on the island of Sumatra. Rainfall in Indonesia's equatorial region tends to be influenced by IOD compared to ENSO. The combination of the two at the same time can cause a significant change in the amount of rainfall. La-Niña and negative IOD occurred in 1992, 1996, 1999, 2000, 2005, 2008, 2011 and 2016. The average rainy day index (SDII) tended to decrease in Japura Island in 1996, 2005, 2011, 2016 , at SM Minangkabau in 1992, 1996, 1999, 2000, 2016 and at SM Hang Nadim in 1996, 1999 and 2008. Meanwhile the longest series of wet days tended to decrease in SM Japura in 1992, 1996, 1999, 2005, in SM Minangkabau in 1992, 1996, 2005, 2008, and in SM Hang Nadim in 1992, 2000, 2005, 2008 and 2011. The longest series of dry days tended to increase in SM Japura in 1996, 2011, in SM Minangkabau in 1996, 2000, 2011, and at SM Hang Nadim in 1996.","PeriodicalId":314761,"journal":{"name":"Jurnal Teori dan Aplikasi Fisika","volume":"197 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123043570","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

Analisis Grafik Karakteristik Sensitivitas Sensor MQ-135 untuk Menentukan Persamaan Hubungan antara ppm dan Rs/Ro 分析MQ-135传感器灵敏度特征图，以确定mtc和Rs/Ro之间的相似性

Jurnal Teori dan Aplikasi Fisika Pub Date : 2023-07-24 DOI: 10.23960/2fjtaf.v11i2.6656

Ari Bangkit Sanjaya Umbu

引用次数: 0