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Journal of Aceh Physics Society
Published by Universitas Syiah Kuala
ISSN : -     EISSN : 23558229     DOI : -
Core Subject : Science,
Physics
Focus of Journal of Aceh Physics Society (JAcPS) provides a forum for original paper works that enhances understanding of physics and their application. Scope of Journal of Aceh Physics Society (JAcPS) paper related to the development of new experimental methods, visualization techniques, material physics, optic, laser and instrumentation in physics is an important part of this journal. Experience gained and lessons learned in building test facilities and in measuring and reducing test data are important aspect of any experimental work. Authors are encouraged to report this experience and to summarize the original data. Archival review paper, short communication, invited papers, discussion of previously published papers, and book reviews are regular feature of the journal, in addition to full-length article.
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Articles 4 Documents
 1 
Search results for , issue "Volume 12, Number 2, April 2023" : 4 Documents clear
Petrographic study of rocks in The Julu Rayeu Formation and the Center of the Geureundong Volcanic in Nisam District, North Aceh District, Aceh Province Dewi Sartika; Millati Amalia Sentosa; Fahri Adrian; Akmal Muhni; Dina Gunarsih; Hidayat Syah Putra; Rifqan Rifqan
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.30888

Abstract

Abstrak. Berdasarkan kondiri geologi, Kecamatan Nisam berada pada Formasi Julu Rayeu dan Batuan Pusat Gunungapi Geureundong. Litologi yang terdapat pada Formasi Julu Rayeu terdiri atas endapan sungai, batupasir tufaan, lempung berlignit, sedangkan litologi pada Batuan Pusat Gunungapi Geureundong yaitu Breksi Andesit. Metode yang digunakan pada penelitian ini meliputi metode pemetaan geologi dan analisis petrografi. Penelitian ini bertujuan untuk mengetahui kondisi geologi dan komposisi mineral penyusun batuan pada daerah penelitian. Berdasarkan hasil penelitian yang telah dilakukan diperoleh kondisi geologi yaitu litologi terdiri dari 4 satuan batuan meliputi batupasir, batupasir tufaan, batulempung, dan endapan kolovium. Hasil analisis petrografi pada batuan beku menurut klasifikasi IUGS (1973) terdiri dari 4 sampel yaitu AU12, AU41, AU72 dan AU73 disebut Andesit, sedangkan batupasir berdasarkan klasifikasi Pettijohn (1975) terdiri dari dua sampel yaitu AU32 dan AU62 disebut Lithic Greywacke. Abstract. Based on geological conditions, Nisam District is located in the Julu Rayeu Formation and the center of the Geureundong Volcanic. The lithology found in the Julu Rayeu Formation consists of river deposits, tuffaceous sandstones, and lignite clays, while the lithology of the central rocks of the Geureundong volcano is andesite breccia. The methods used in this study include geological mapping methods and petrographic analysis. This study aims to determine the geological conditions and constituent mineral composition of the rock in the study area. Based on the results of the research that has been carried out, the geological conditions are obtained, namely lithology consisting of 3 rock units including sandstone, tuffaceous sandstone, claystone, and colluvium deposits. The results of petrographic analysis on igneous rocks according to the IUGS classification (1973) consist of 4 samples namely AU12, AU41, AU72, and AU73 called Andesite, while sandstones based on Pettijohn’s classification (1975) consist of two samples namely AU32 and AU62 called Lithic Greywacke.
Analysis of the impact climate anomalies (ENSO and IOD) on environments based of computing in the Western Sumatra Region (Equatorial Region of Indonesia) Melly Ariska; Adam Darmawan; Supari Supari; Muhammad Irfan; Iskhaq Iskandar
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.31167

Abstract

Abstrak. ENSO (El Niño - Southern Oscillation) adalah bentuk anomali iklim di Samudra Pasifik yang ditandai dengan peningkatan suhu permukaan laut (SPL) di bagian Tengah dan Timur khatulistiwa. Fenomena ini memainkan peran penting dalam variasi iklim tahunan dan musiman di Indonesia, terutama di wilayah khatulistiwa Indonesia. Studi ini bertujuan untuk menganalisis dampak anomali iklim komputasi di wilayah khatulistiwa Indonesia. Metode yang digunakan dalam studi ini adalah metode regresi linier dengan membandingkan dua mesin statistik, yaitu bahasa pemrograman Python dan SPSS. Pengaruh ENSO dirasakan di beberapa daerah Indonesia yang ditandai dengan jumlah curah hujan yang lebih rendah selama tahun ENSO dibandingkan dengan sebelum dan sesudah ENSO. Peristiwa El Niño juga mempengaruhi masuknya musim kemarau dan durasinya sepanjang evolusi UNSO. Penurunan jumlah curah hujan berkorelasi negatif dengan peningkatan jumlah kebakaran hutan per tahun. Analisis curah hujan berbasis pembelajaran mesin menggunakan Google Colab dan Python memberikan hasil yang identik dengan analisis berbasis SPSS, sehingga hasil analisis berbasis pembelajaran mesin memiliki nilai yang akurat. Perubahan iklim akan menghasilkan perubahan pola iklim tahunan dan antartahunan seperti penundaan dalam awal musim hujan atau musim kemarau. Selain ENSO, juga terdapat gejala anomali iklim yang dihasilkan oleh interaksi antara laut dan atmosfer di Samudra Hindia di sekitar khatulistiwa, yang disebut IOD (Indian Ocean Dipole). Selain melihat dampak anomali iklim terhadap lingkungan, studi ini juga menguji perbandingan hubungan antara anomali perubahan iklim dan curah hujan menggunakan metode SPSS dan bahasa pemrograman Python dengan membandingkan akurasi output yang dihasilkan secara komputasi. Pengaruh IOD dan ENSO terhadap wilayah tipe hujan ekatorial tidak cukup signifikan. Hubungan antara IOD dan ENSO tidak cukup kuat untuk wilayah khatulistiwa dan tidak terjadi pergeseran pada puncak onset di wilayah ini. Abstract. ENSO (El Niño -Southern Oscillation) is a form of climate deviation in the Pacific Ocean which is characterized by an increase in sea surface temperature (SST) in the Central and Eastern parts of the equator. This phenomenon plays an important role in annual and seasonal climate variations in Indonesia, especially in the equatorial region of Indonesia. This study aimed to analyze the impact of a computational climate anomaly in the equatorial region of Indonesia. The method used in this study was the linear regression method by comparing two statistical engines, namely the Python coding language and SPSS. The influence of ENSO is felt in several areas of Indonesia which are characterized by lower amounts of rainfall during the ENSO year compared to pre- and post-ENSO. El-Niño events also affect the entry of the dry season and its duration throughout the evolution of UNSO. Reducing the amount of annual rainfall is negatively correlated with increasing the number of forest fires per year. Machine learning-based rainfall analysis using google collab and python gives identical results to SPSS-based analysis, so the results of machine learning-based analysis have an accurate value. Climate change will result in changes in annual and interannual climate patterns such as a delay in the start of the rainy season or dry season. In addition, the rainy season period is also expected to be shorter. Apart from ENSO, there are also symptoms of climate deviations produced by the interaction of the sea and the atmosphere in the Indian Ocean around the equator, which is called the IOD (Indian Ocean Dipole). In addition to looking at the impact of climate anomaly on the environment, this study also examines the comparison of the relationship between climate change anomaly and rainfall using the SPSS method and the Python coding language by comparing the accuracy of the computationally generated output. The influence of IOD and ENSO on the rain-type region with the Equatorial rain-type region is not significant enough. The relationship between IOD and ENSO is not strong enough for the equatorial region and there is no shift in the peak onset in this region.
Realtime instrumentation system towards blood oxygen saturation level monitoring with Liquid Crystal Display (LCD) and smartphone Zakaria Husen; Zaid Albarra; Khairi Suhud; Fauzi Fauzi; Elin Yusibani; Irhamni Irhamni; Fadhli Syamsuddin; Edwar Iswardy; Nurhanif Nurhanif; Ahmad Fairuz Bin Omar; Muhammad Syukri Surbakti
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.31131

Abstract

Abstrak. Oksigen memainkan peranan vital dalam tubuh untuk mengatur sistem peredaran darah. Namun jika kadar saturasi oksigen dalam darah (SpO2) berkurang atau tidak mencukupi maka dapat menyebabkan sesak nafas, bahkan dapat mempengaruhi fungsi kerja otak. Perangkat oksimeter digunakan untuk mengukur kadar saturasi oksigen dalam darah dengan pengukuran secara non-invasif, sehingga kekurangan oksigen dalam darah dapat dideteksi lebih awal. Oksimeter yang tersedia saat ini umumnya menampilkan hasil SpO2 tidak terhubung ke jaringan sehingga tidak dapat dipantau secara jarak jauh. Oleh karena itu diperlukan suatu perangkat yang dilengkapi dengan fitur monitoring dalam jaringan agar dapat memantau kondisi partisipan secara real-time. Penelitian ini bertujuan untuk mengembangkan sistem monitoring pengukuran saturasi oksigen dalam darah yang dapat diakses secara remote menggunakan smartphone. Alat rancangan ini menggunakan sensor MAX30100 dan NodeMCU ESP8266 sebagai mikrokontroler. Hasil pengukuran alat rancangan dapat dipantau secara real-time melalui website menggunakan aplikasi Blynk. Data pembanding yang digunakan adalah alat Oksimeter komersial. Pengujian telah dilakukan pada partisipan laki-laki berusia 14 dan 22 tahun, dan perempuan berusia 18 dan 45 tahun. Hasil pengujian secara keseluruhan menunjukkan bahwa alat yang dirancang relative sama dengan oksimeter komersial, yang ditunjukkan oleh nilai thitung ttabel. Abstract. Oxygen plays a vital role in regulating our blood circulation system. However, if the oxygen levels in the blood decrease or are insufficient, it can cause shortness of breath and even affect brain function. To address this problem, an oximeter provides an effective solution by providing a device that can measure blood oxygen saturation without having to place any device inside the body. Currently available oximeter devices usually only display the SpO2 results on the device itself. Therefore, a device with a remote monitoring feature is needed to monitor participants’ condition in real-time. This research aims to develop a remote-access blood oxygen saturation measurement monitoring system using the MAX30100 sensor and the NodeMCU ESP8266 as the microcontroller, the values can be viewed in real-time on website by the Blynk app. The comparison data used is a comercial oximeter device. The participants were the males aged 14 and 22 years, and the female aged 18 and 45 years. Herein, we found that the designed instrument shows excellent performance in which ttest ttable from overall data.
Constructivism theory in the ISLE-based STEM approach model for wave topics in middle and high school students Tengku Diah Zulismi Putri; Irwandi Irwandi; Mursal Mursal
Journal of Aceh Physics Society Volume 12, Number 2, April 2023
Publisher : PSI-Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jacps.v12i2.32021

Abstract

Abstrak. Proses pembelajaran di Indonesia saat ini kurang mendorong siswa dalam mengembangkan keterampilan berpikir kritis. Metode yang diterapkan umumnya bertujuan untuk mampu menjawab soal-soal yang diujiankan sehingga sedikit sekali siswa yang berani mengemukakan gagasan dan ide-ide orisinil. ISLE-based STEM merupakan salah satu model pendekatan yang mendukung pembelajaran secara kontruktivisme. Model ini mendorong siswa untuk terlibat langsung dalam proses pembelajaran dengan melakukan berbagai aktivitas fisik, sehingga membantu mereka dalam merepresentasikan penalaran kualitatif dan mengembangkan kemampuan pemecahan masalah. Metode yang digunakan dalam penelitian ini adalah deskriptif analisis kerja dan aktivitas berdasarkan penelitian tindakan kelas yang dilakukan kepada siswa kelas VIII MTS dan kelas XI MAS Dayah Daruzzahidin. Peneliti menemukan bahwa awalnya siswa mengalami kesulitan dalam memahami fenomena fisika yakni gelombang. Hasil penilaian tindakan kelas menunjukkan siswa memperoleh skor yang rendah pada kemampuan ilmiah. Peneliti mengamati siswa sering mengeluh bahwa tugas-tugas yang diberikan sulit sehingga guru perlu memotivasi siswa dengan memberikan ide-ide yang dapat memancing kemampuan berpikir siswa. Seiring berjalannya waktu, para siswa mulai terbiasa dan menjadi lebih antusias dengan kegiatan tersebut. Melalui tahapan-tahapan tugas yang harus diselesaikan pada modul, siswa berhasil mengonstruk pengetahuan tentang gelombang dan karakteristiknya dan dapat menganalisis hubungan cepat rambat gelombang tali (v), tegangan tali (F) dan massa jenis tali (µ) berdasarkan eksperimen yang dilakukan. Abstract. The learning process in Indonesia currently does not encourage students to develop critical thinking skills. The method used generally aims to be able to answer the questions being tested so that very few students dare to express original ideas. ISLE-based STEM is an approach model that supports constructivist learning. This model encourages students to be directly involved in the learning process by carrying out various physical activities, thereby helping them to represent qualitative reasoning and develop problem-solving skills. The method used in this research is a descriptive analysis of work and activities based on classroom action research conducted on students of class VIII MTS and class XI MAS Dayah Daruzzahidin. We found that students had difficulty understanding the physics of waves at first. The results of the class action assessment showed that students obtained low scores on scientific abilities. We observe that students often complain that the assignments given are difficult, so teachers need to motivate students by providing ideas that can stimulate students' thinking skills. Over time, the students began to get used to and became more enthusiastic about these activities. Through the stages of the tasks that must be completed in the module, students are successful in constructing knowledge about waves and their characteristics and can analyze the relationship between the speed of wave propagation of the rope (v), the tension in the rope (F) and the density of the rope (µ) based on the experiments carried out.

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