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All Journal EKSAKTA: Journal of Sciences and Data Analysis JFA (Jurnal Fisika dan Aplikasinya) JPSE (Journal of Physical Science and Engineering) Jurnal Penelitian Pendidikan IPA (JPPIPA) INDONESIAN JOURNAL OF APPLIED PHYSICS Journal of Physics and Its Applications JURNAL EKSAKTA PENDIDIKAN (JEP) Pelita Eksakta Journal of Innovation in Educational and Cultural Research Pillar of Physics Education : Jurnal Berkala Ilmiah Pendidikan Fisika Pillar of Physics: Jurnal Berkala Ilmiah Fisika ASEAN Natural Disaster Mitigation and Education Journal JIPI (Jurnal IPA dan Pembelajaran IPA) Journal of Experimental and Applied Physics
Syafriani Syafriani
Department Of Physics, Faculty Of Mathematics And Natural Sciences, Universitas Negeri Padang, Padang
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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Identification of Elemental Content and Rock Types in West Lampung Regency Nadya Fitra Kurnia; Hamdi Rifai; Syafriani Syafriani; Letmi Dwiridal; Fatni Mufit
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 3, ISSUE 2, August 2022
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/EKSAKTA.vol3.iss2.art1

Abstract

Rock is a constituent of the earth's crust from a collection of minerals that harden due to natural processes. Rocks formed from volcanic eruption materials in each place have different characteristics in distribution patterns, types of minerals and the content of elements contained therein. These rocks contain elements that form magnetic minerals. However, in rocks in West Lampung Regency the elemental content in the rocks has not been identified. This study aims to determine the composition of rock-forming elements and rock types found in West Lampung Regency. The elemental content in rocks can be identified using X- Ray Fluorescence (XRF) and determine rock types using SiO2and K2O diagrams. The results of the analysis using XRF show that Si (Silica) is the most dominant element found in 4 rocks in Lampung Regency. West. In addition, the elements found in rocks in West Lampung are Al, Si, K, Ca, Fe, P, Cl, Ti, Mn, Ni, Cu, Zn, Ga, As, Rb, Sr, Y, Zr, Ag, In, Eu, and Pb , from the content of these elements there are elements that form magnetic minerals, namely Fe and Ti , with rock types of Foidite and Decite.
Magnetic Susceptibility of Volcanic Soil on the Surface of Mount Singgalang, Sumatra Barat Azmi Renaldi Renaldi Alrahmadana; Hamdi Rifai; Syafriani Syafriani; Fatni Mufit; Nofi Yendri Sudiar
Jurnal Fisika dan Aplikasinya Vol 18, No 2 (2022)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v18i2.12361

Abstract

Volcanic soil is a part of interest for physical, chemical, and morphology studies of soil derived from volcanic ash, which is known to be fertile and is one of the most productive soils in the world. They are also known to have a high environmental carrying capacity, as evidenced by the dense population in the area around the volcano. The soil contains many minerals, one of which is magnetic minerals. However, there is no document so far that records the value of the magnetic susceptibility of volcanic soil on the surface of Mount Singgalang. This study aims to determine the abundance of magnetic minerals based on their magnetic susceptibility values. To achieve this goal, the rock magnetism method is applied with the Bartington magnetic susceptibility meter type MS2B sensor instrument. Magnetic susceptibility values can be used as initial characteristics to understand past volcanic processes and explain environmental changes. This method is very effective, inexpensive, sensitive, fast, and non-destructive. The results showed that the value of the magnetic susceptibility of volcanic soils varied with a value range of 93.3 - 352.5 (x10−8 m3/kg). Based on this value, it is assumed that the magnetic mineral properties are antiferromagnetic. The average frequency dependent susceptibility (χfd) (%) ranges from 0.831 - 2.090 %, indicating that the measured volcanic soil contains almost no superparamagnetic grains and is generally dominated by multi-domain grains.
Analysis of Liquefaction Potential in Sungai Limau District Padang Pariaman Regency Using the Multichannel Analysis of Surface Wave (MASW) Method Angeline Chika Rorensia; - Syafriani; - Hamdi; - Akmam; Letmi Dwiridal
PILLAR OF PHYSICS Vol 16, No 1 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/14326171074

Abstract

Sungai Limau is one of the sub-districts in Padang Pariaman Regency which was badly damaged by the earthquake on 30 September 2009. Geologically, the Sungai Limau area is included in the category of cambisol soil types in the form of layers of sand, making it vulnerable to liquefaction due to earthquakes. This research was conducted to analyze the liquefaction potential using the Multichannel Analysis of Surface Wave (MASW) method. The MASW method can produce 2D Vs profiles to describe the structure and types of rock-forming materials at each depth and layer. This method can detect underground surfaces Vs to a depth of 30 meters. Data collection was conducted at Sungai Limau using the sysmatrack-MAE tool with 4 observation tracks. Each measurement uses a distance between geophones of 4 meters. The Vs results from MASW will be compared with the classification of soil types from UBC 1997. The average results of the shear wave velocity at a depth of 30 m (Vs30) in this study are 322.9 m/s for the first track, 303 m/s for the second track, 311 m /s for the third and fourth track. The four tracks fall into the same classification, namely medium soil type (class D). The results of the liquefaction potential analysis using the MASW method show that the first line has a high level of liquefaction potential in the third layer with a value of Vs 337 m/s (class D). The second track has a high level of liquefaction potential in the third layer with a value of Vs 314 m/s (class D). The third track has a fairly high level of liquefaction potential in the second layer with a value of Vs 209 m/s (class D). The fourth track has a high level of liquefaction potential in the second layer with a value of Vs 198 m/s (class D). The fourth and fifth layers on the entire track have no liquefaction potential with Vs ranging from 400-550 m/s (Class C).
Three Axis Vibration Measuring Instrument using a Smartphone Display-based Accelerometer Sensor Theja Lufiandi R; - Yulkifli; Mona Berlian Sari; - Asrizal; - Syafriani
PILLAR OF PHYSICS Vol 16, No 1 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/13813171074

Abstract

Applications for vibration measurement include machine analysis, measuring vehicle stress, and monitoring building structures. Modern vibration measurement instruments are typically expensive, intricate, and not necessarily readily available to everyone. This research creates and develops a vibration measuring tool that makes use of an accelerometer sensor and a smartphone as a display because of this. Vibration data from the sensor can be transmitted via the Internet of Things, passed through a microcontroller, and then received on a smartphone. This measurement device has the benefits of being simple to use, widely available, and inexpensive. The Four-D (4-D) model is utilized in the Research and Development (R&D) technique. Define, design, develop, and desiminate make up the 4-D approach. A tool that can detect in three dimensions from the x, y, and z axes is the outcome of this research. This tool's design incorporates a smartphone as the display, an ADXL345 accelerometer as a sensor, and a NodeMCU ESP32 microcontroller as a microcontroller. The average accuracy and precision of this tool are 100% and 92%, respectively. It is anticipated that the creation of this measuring tool would expand the accessibility of more effective vibration measurement tools that can be applied in a variety of contexts.
Analysis of Limestone Magnetic Susceptibility Value as a Cement Manufacturing Material using Bartington Magnetic Susceptibility Meter Yogi AlFajar; - Hamdi; - Syafriani; Fatni Mufit
PILLAR OF PHYSICS Vol 16, No 1 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/13670171074

Abstract

Limestone is the main ingredient for cement formation, 80% of the amount of Limestone used in cement formation, but there is very little research on Limestone, even though Limestone is very influential on the maximum compressive strength of cement. The purpose of this study was to obtain a new standard for cement based on the abundance of magnetic minerals indicated by the value of their Magnetic susceptibility, especially in Limestone which is the maining redientin cement manufacture, and also the lack of research on the susceptibility and types of minerals contained in Limestone. The method used in this study is a magnetic method where the magnetic susceptibility value of the sample is measured using a Magnetic Susceptibility Meter type MS2B. Limestone magnetic susceptibility value from PT. Semen Padang has a range of values from 17.6 x 10-8m3/kg to 90 x 10-8 m3/kg and has a dominant value, where Limestone has little or almost no Superparamagnetic grains, the reisonly one sample that has Superparamagnetic grains. Based on the range of magnetic susceptibility values obtained the magnetic properties of Limestone from PT. Semen Padang is Antiferromagnetic and has a type of magnetic mineral, namely Hematite
IoT-based Wind Speed Measurement System Alif Yulanda Putri; - Yulkifli; - Syafriani; Yenni Darvina
PILLAR OF PHYSICS Vol 16, No 1 (2023)
Publisher : Department of Physics – Universitas Negeri Padang UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/14314171074

Abstract

Weather is the state of the atmosphere at any time which is expressed by the high and low values of the weather element parameters. Observations of weather elements are carried out so that they can be used as needed in the future. This study aims to determine the performance and design specifications of a wind speed measurement system based on the internet of things with a smartphone display. This measuring instrument is built using a wind speed sensor, namely a wind speed sensor as a speed sensor, Arduino Uno to connect sensor readings to NodeMCU, the NodeMCU ESP8266 microcontroller which is used to access the internet network so that it can be sent to the thingspeak server and data from thingspeak is displayed on an android smartphone using inventory application. The results of measuring, testing, and analyzing wind speed using the Internet of Things and a smartphone display, namely Arduino Uno, process the wind speed detected by the wind speed sensor before sending it to NodeMCU ESP8266. After that, the data is sent to the thingspeak server which will be displayed on the Android phone. Second, the average accuracy of wind speed measurements on the first, second, and third days were 95.96%, 94.83%, 96.16%, and the average accuracy of wind speed measurements on the first, second, and third days were 92.85%, 94.43% and 96%. 
Study of Seismicity Based on the Results of Hypocenter Relocation Using Double Difference (HypoDD) Method in West Sumatera and Its Surrounding Syafriani; Furqon Dawam Raharjo; Suaidi Ahadi; Mohamad Ramdhan
Jurnal Penelitian Pendidikan IPA Vol 9 No 7 (2023): July
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i7.3792

Abstract

The presence of the Indo-Australian plate, the Eurasian plate and the active Sumatra fault zone makes the West Sumatra region and its surroundings have very high seismic activity. To describe the seismicity pattern, it is necessary to analyze the earthquake hypocenter relocation, one of which is using the double difference (hypoDD) method. This method basically uses the data residual travel time from each hypocenter pair to the earthquake seismic station. The purpose of this research is to analyze the relocation of the hypocenter and describe the seismicity pattern in the West Sumatra and surrounding areas. The data used in this study are the time arrivals of P and S waves during the period of  2022 obtained from the earthquake catalog at the Padang Panjang Geophysical Station. The results showed that the earthquake hypocenter was relocated 888 out of 934 earthquake events and the distribution of hypocenter relocation produces a good seismicity pattern. From the results of the earthquake hypocenter relocation, the seismicity pattern in the West Sumatra region and its surroundings is generally influenced by subduction zones and some due to active fault zones. Seismicity in the subduction zone and active faults of Sumatra has a depth of about 50 - 250 km and 5 - 20 km. This indicates that during the period of 2022, subduction zones with medium to deep depths are very active as well as in Sumatra's active fault zones, especially  in the Sianok segment.
Fostering creative problem solving skills through integrated learning of volcanic eruption disasters Fanny Rahmatina Rahim; Ahmad Fauzi; Syafriani
ASEAN Natural Disaster Mitigation and Education Journal Vol. 1 No. 1: (July) 2023
Publisher : Institute for Advanced Science, Social, and Sustainable Future

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61511/andmej.v1i1.2023.176

Abstract

This article aimed to describe how an integrated learning approach can enhance creative problem-solving abilities within the context of studying volcanic eruption disasters. Volcanic eruptions are complex natural phenomena that require deep understanding and creative thinking skills to address. In this study, a descriptive literature review was conducted to gain a comprehensive understanding of the key findings and insights related to integrated learning and creative problem-solving in the context of volcanic eruption disasters. The review focused on articles published between 2013 and 2023 that specifically addressed creative thinking abilities and integrated learning approaches for volcanic eruption disasters. To gather relevant articles, databases such as Google Scholar, Emerald, ScienceDirect, IEEE, and Springer were utilized. The literature review reveals that integrated learning approach can serve as an effective means to develop students' creative problem-solving abilities within the context of studying volcanic eruption disasters. By utilizing strategies such as inquiry-based learning, technology integration, and interactions with stakeholders, students can enhance their creative thinking skills, improve their holistic understanding, and be prepared to tackle the complexities of challenges related to volcanic eruptions. The implication of this research highlights the importance of implementing an integrated learning approach in the curriculum to enhance students' creative problem-solving skills in addressing complex natural disasters such as volcanic eruptions.
Validity of Physics E-Modules Based on an Inquiry Model Integrated with the Science, Environment, Technology, and Society Approach to 21st Century Skills Westi Widia Wati; Syafriani Syafriani*
JIPI (Jurnal IPA dan Pembelajaran IPA) Vol 7, No 2 (2023): JUNE 2023
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jipi.v7i2.30002

Abstract

Education for the 21st century combines knowledge, abilities, and attitudes with a command of information and communication technologies. The role of education is very important as part of an effort to build national character and produce millennials who are innovative, creative, and ready to face global challenges. 21st-century skills are one of the skills that students must have to face global challenges. 21st century skills include critical thinking, creativity, collaboration, and communication, otherwise known as "4C skills." 21st-century skills are also very much needed in learning physics. One of the best teaching materials for enhancing students' 21st-century skills is an e-module built on the inquiry model and the science, environment, technology, and society (SETS) approach. The goal of this study was to establish the validity, practicability, and efficacy of e-modules created using the SETS approach integrated inquiry model in increasing students' 21st century competencies. This type of research is called development research (RD). This development procedure refers to the Plomp development model, which has three stages: preliminary research, prototyping, and assessment. E-module validation is reviewed from four aspects: the substance of the material, the learning design, the appearance, and the use of the software. The average score obtained for the substance component of the material, the learning design, the appearance, and the use of the software is in a very valid category. Based on these data, it can be concluded that the inquiry model-based e-module integrated with the SETS approach is in the "very valid" category
Analisis Kebutuhan Pengembangan E-Modul Fisika untuk Meningkatkan Kemampuan Berpikir Kritis dan Literasi Sains di SMA Yunita Syafitri; Syafriani
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.4976

Abstract

The purpose of this study was to analyze the needs of development of physics e-module integrated with critical reading. Development using the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). This is descriptive qualitative research with questionnaire and interview methods. The data were analyzed using descriptive descriptively with the results of data processing in percent (%). The result showed that 86 % of physics teacher use the textbooks for teaching materials and 65.14 % of student’s thinking skills still in the low categories. Furthermore, the results also showed that 62.13 % of students have no interest in reading. It can be concluded that the development of physics e-module not only can be improving student’s critical thinking but also student’s scientific literacy.
Co-Authors - Afrizal - Asrizal - Asrizal - Hamdi - Hamdi - Mandasari - Ma’muri - Nizamullah - Yulkifli Adya Mustika Sari Ahmad Fauzi Akmam Akmam Alif Yulanda Putri Andiyansyah Sabarani Angeline Chika Rorensia Asrizal Azmi Renaldi Renaldi Alrahmadana Caroline Bouvet De La Maisonneuve Cici Dwi Tisa Haspen Dessy Ratnasari Ellen Kurniawati Daya Elsa Okta Memori Elsa Yanfatriani Fajar Akmal Fajri Syukur Rahmatullah Fajri Syukur Rahmatullah Fandu Alfadilah Fanny Rahmatina Rahim Fatni Mufit Festiyed Fitri Anggriani Francesca Forni Furqon Dawam Raharjo Furqon Dawam Raharjo Hamdi Arifin Hamdi Hamdi Hamdi Rifai Harman Amir Hidayati Hidayati Ika Sri Fahmi Ilham Akbar Jeffrey Anthony G. Oalmann Joshapat T. Sri Sumantyo Letmi Dwiridal Linda Susanti Lingga Ayunda Pradipta Marcus Phua Matias Adam Canny Calvary Laia Meisyarah Nabillah Mirza Muhammad Waqar Mohamad Ramdhan Mona Berlian Sari Mudzullah Rajif Muhammad Aulia Fauzi Muhammad Reza Iswara Muslim Buldan muthia puteri amarda Mutiara Kusuma Febriwanti Nadya Fitra Kurnia Nici Jumatul Fitri Nofi Yendri Sudiar Nur Azizah Nurmala Dewi Siregar Nurul Hazwani Putra, Amali Rahmat Triyono Rahmi Sukmawati Ramli Ramli Ratna Mila Ridho Pratama Riza Azriyanti Rizaldi Putra Robby Hendra Romadiana Dwi Rudi Kurniawan Rumi Yuliska Sandra Gusdalina Steffen Eisele Suaidi Ahadi Suaidi Ahadi Theja Lufiandi R Thomas Hardy Titin Agustina Ulfa Fadhilah Utari Prisma Dewi Vicky Fikrotu Zakiyah Wahyuni Satria Dewi Weni Oktavia Westi Widia Wati Westi Widia Wati Yenni Darvina Yoga Yusrila Yogi AlFajar Yohandri Yunita Syafitri Yurnetti Yurnetti Zaimi Netrisa Zellvia Elizha