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All Journal Jurnal Pendidikan Fisika Indonesia JIPF (Jurnal Ilmu Pendidikan Fisika) Jurnal Filsafat Jukung (Jurnal Teknik Lingkungan) Journal of Physics and Its Applications Journal of Applied Engineering and Technological Science (JAETS) Innovative: Journal Of Social Science Research
Sahroni, Taufik Roni
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Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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Hawking Temperature Modification and the Physical Dynamics of Black Holes: A Study of the Influence of Internal and Cosmological Variables Sahroni, Taufik Roni; Sinaga, Goldberd Harmuda Duva; Jaya, Pratama; Purwanto, Romdhon; Muhlis, Dasep; Siagian, Ruben Cornelius
JIPF (Jurnal Ilmu Pendidikan Fisika) Vol 9, No 2 (2024): May 2024
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jipf.v9i2.4647

Abstract

The main objective of the study is to develop a model that modifies the traditional Hawking temperature by considering the influence of internal variables such as radius, mass, electric charge, angular momentum, and cosmological constant. The research method involves mathematical analysis and computational modeling based on the modified Hawking temperature equation. The results show that the modified Hawking temperature produces non-linear corrections that show the interaction between black holes and the quantum structure of spacetime. graphical representations visualize the variation of Hawking temperature with changes in area, electric charge, angular momentum, and cosmological parameters. The implications of the research extend to the understanding of the thermal properties of black holes in the context of gravitational and quantum theories. The research identifies gaps in the knowledge of the effects of cosmological parameters on black hole thermodynamics and introduces Hawking temperature modifications that have not been mapped in detail before. The study concludes that the Hawking temperature modification provides a strong foundation for further research in black hole physics, particularly in the effect of physical and cosmological parameters on the thermal properties of black holes.
PERANCANGAN KEMASAN INDUSTRI OTOMOTIF BERKELANJUTAN UNTUK MENJAGA LINGKUNGAN Adriyanti, Aissyah Lathifah; Sahroni, Taufik Roni
Jukung (Jurnal Teknik Lingkungan) Vol 10, No 2 (2024)
Publisher : Program Studi Teknik Lingkungan Fakultas Teknik Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jukung.v10i2.20682

Abstract

Aki mobil memiliki pasar yang luas dan diterima dengan baik oleh konsumen. Dengan umpan balik positif dari konsumen, industri otomotif berusaha meningkatkan kualitas produknya, yaitu kemasan. Tujuan dari penelitian ini adalah untuk menciptakan desain yang meningkatkan kepuasan pelanggan di industri otomotif, sehingga perusahaan dapat meningkatkan penjualan dan memperluas segmen pasar melalui tingkat kepuasan pelanggan. Penelitian ini menerapkan Desain Berbantuan Komputer 3D (CAD) dan melakukan Analisis Keberlanjutan kemasan berbahan corrugated paper menggunakan SolidWorks 2021 untuk menjaga lingkungan. Kriteria desain mengutamakan bahan ramah lingkungan, ergonomi, daya tahan, keandalan, dan kemudahan penggunaan. Secara keseluruhan, studi ini merekomendasikan penggunaan corrugated paper untuk kemasan aki mobil di industri otomotif. Corrugated paper terbukti sebagai bahan yang ramah lingkungan dan berkelanjutan yang memberikan perlindungan yang sangat baik bagi aki mobil dan mudah untuk ditangani dan digunakan. Hasil yang diperoleh dengan desain baru ini lebih baik daripada desain sebelumnya atau yang sudah ada.
Approximative Relationship Between The Energy Function (E) and Hubble Function (H) in Cosmology: Practical and Theoretical Analysis Sahroni, Taufik Roni; Pandara, Dolfie Paulus; Wibowo, Arnowo Hari; Alatif, Yahya Halim; Wardana, Febriansyah; Kasim, Mohd Shahir; Siagian, Ruben Cornelius
Jurnal Pendidikan Fisika Indonesia Vol 20, No 1 (2024)
Publisher : Department of Physics, Faculty of Mathematics and Natural Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jpfi.v20i1.43488

Abstract

This research delves into the approximate relationship between the energy function (E) and the Hubble function (H) within cosmological. Utilizing the Friedmann equation, it establishes a link between the universe's scale factor and the Hubble function. Through Taylor series approximation, the study derives an approximation of the energy function, under specific assumptions and approximations. Asymptotic analysis investigates the behavior of variables y and s, shedding light on function limits and behaviors. The study incorporates an interactive 3D scatter plot visualization to elucidate the relationship between cosmological parameters and physical systems, aiding in a comprehensive understanding of dynamics. Practical recommendations emphasize increasing data points for accuracy and validating with observational data, while theoretical suggestions advocate exploring higher-order terms and considering additional physical factors.
Innovation Design Concept Of Labeling Mechanism To Improve Productivity Putri, Phoebe Cathlya Ismanto; Noor, RR Afrida; Nirwanty, Vica Putri; Sahroni, Taufik Roni
Innovative: Journal Of Social Science Research Vol. 3 No. 5 (2023): Innovative: Journal of Social Science Research
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Proses industri harus dilihat sebagai suatu siklus yang mengupayakan perbaikan terus-menerus untuk mencapai tujuan yang diharapkan dan meningkatkan produktivitas pekerja, seperti proses pelabelan. Tulisan ini memfokuskan usulan rancangan alat pelabelan semi otomatis untuk meningkatkan produktivitas kerja proses pelabelan yang lebih efektif dan efisien. Penelitian ini menggunakan kuesioner kepada pengguna individu untuk mengumpulkan kebutuhan pelanggan. Hasil analisis menentukan acuan dalam perancangan alat inovasi dengan mengedepankan faktor-faktor seperti fungsi, kemudahan, harga, multifungsi, keamanan. Metode Simple Additive Weighting (SAW) digunakan untuk menyelesaikan pemilihan desain. Penelitian ini menemukan bahwa kombinasi material akrilik dan kayu dinilai lebih tepat berdasarkan analisis struktur. Selain itu, alat inovasi ini telah dikembangkan menggunakan rapid prototyping dan melakukan perbaikan proses yang signifikan seiring dengan peningkatan efisiensi dan efektivitas produktivitas kerja serta penghematan waktu proses pelabelan sebesar 50%.
Design of A Digitalization System for Machine Scheduling and Allocation in Flexible Job Shop Heavy Equipment Manufacturing Industry Karim, Mohammad Alfin; Sahroni, Taufik Roni
Journal of Applied Engineering and Technological Science (JAETS) Vol. 7 No. 1 (2025): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v7i1.5089

Abstract

This study aims to develop a digitalized scheduling system based on the Flexible Job Shop (FJS) model to optimize production efficiency in the heavy equipment manufacturing industry. The heavy equipment manufacturing industry faces significant challenges in achieving production efficiency due to its high-mix, low-volume (HMLV) nature and the complexity of production processes. The research follows a structured approach, beginning with Focus Group Discussions (FGDs) to gather stakeholder requirements. These requirements are translated into a House of Quality (HoQ) matrix to prioritize features for the dashboard. A literature review identifies optimal scheduling methods, with a focus on FJS and heuristic scheduling rules. The dashboard is developed using JavaScript, PHP, Node.js, and PostgreSQL, and deployed on Amazon Web Services (AWS). The system undergoes black-box testing to ensure functionality and reliability before implementation. The study identifies the Earliest Due Date (EDD) method as the most effective scheduling approach, with an average delay of 3.2 days, utilization of 29%, and completion time of 14.33 days. The implementation of the digitalized scheduling system increased on-time production from 70.56% to 92.8% and improved production achievement from 92.78% to 97.4%. The dashboard application successfully integrates real-time data, adaptive scheduling, and operational features, such as a start-stop system and machine load recommendations. The findings highlight the importance of digital transformation in manufacturing, particularly in optimizing resource allocation, reducing delays, and improving production efficiency. This research contributes to the field of digitalized scheduling and real-time production management by providing a practical, data-driven solution tailored to the HMLV characteristics of heavy equipment manufacturing.
Relativistic Effects and Stellar Properties in Hipparcos Binary Stars, White Dwarfs, and Neutron Stars Yasin, Verdi; Sahroni, Taufik Roni; Siagian, Ruben Cornelius; Mardiyati, Sri; Pramarta, Pandhu; Wujarso, Riyanto; Saprudin, Saprudin; Alfin, Edward
Journal of Physics and Its Applications Vol 8, No 1 (2026): February 2026
Publisher : Diponegoro University Semarang Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpa.v8i1.29176

Abstract

The research analyzes astrophysical phenomena in binary stars, fast stars, white dwarfs, and neutron stars, taking relativistic effects into account using Hipparcos catalog data. The objectives are to evaluate the relativistic precession of binary stars, the Shapiro delay due to the supermassive black hole Sgr A, the relativistic correction of neutron star luminosity, the distribution of star populations in the Hertzsprung–Russell diagram, the gravitational redshift of white dwarfs, and the characteristics of stars with extreme transverse velocities. Data from 10,726 binary star systems and 602 white dwarfs were processed numerically using R for data manipulation, visualization, and statistical calculations. The results show that relativistic precession in binary stars is generally small, increases in narrow orbits, and follows a power law with respect to the semi-major axis (exponent −0.453). Shapiro delay varies with projected distance to Sgr A, with most stars experiencing small delays, while some experience delays of up to 310 seconds. Neutron star luminosity shows a relativistic correction of ~0.03%, consistent with gravitational redshift and time dilation. The Hertzsprung–Russell diagram shows a clear separation between giants, main sequence stars, and white dwarfs, with a significant linear relationship between absolute magnitude and color index (B−V). The gravitational redshift of white dwarfs is controlled by radius (exponent −1.0001), while stars with extreme velocities form a heterogeneous and evenly distributed population. In conclusion, Hipparcos data support general relativity predictions and enable quantitative evaluation of stellar physics and evolution. Research novelties include systematic measurements of relativistic precession, Shapiro delay, neutron star luminosity corrections, white dwarf radius–redshift relationships, and kinematic characteristics of extreme stars.
BLACK HOLE EVAPORATION AND THE RECONSTRUCTION OF THE ONTOLOGY OF PHYSICAL REALITY FROM A RELATIONAL AND COSMOLOGICAL EMERGENCE PERSPECTIVE Ariefka, Reza; Sahroni, Taufik Roni; Siagian, Ruben Cornelius; Nurahman, Arip; Raisal, Abu Yazid
Jurnal Filsafat "WISDOM" Vol 36, No 1 (2026): (Article in Press)
Publisher : Fakultas Filsafat, Universitas Gadjah Mada Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jf.108753

Abstract

This research is motivated by developments in modern physics which show that black holes, which in classical general relativity are considered the most stable and permanent entities in the universe, actually undergo evaporation through Hawking radiation. This phenomenon has profound philosophical implications regarding the nature of physical existence, the status of information, the structure of space-time, and the direction of cosmological time. This study aims to analyze the ontological and epistemological implications of black hole evaporation in the context of micro-macro relationships, relational ontology, and the concept of time as an emergent phenomenon. This study uses a qualitative method based on literature review and conceptual analysis by integrating the perspectives of theoretical physics, philosophy of science, and modern cosmology. The results of this study show that black hole evaporation confirms that there are no physical entities that are absolute and permanent. Physical existence is more accurately understood as a relational phenomenon that depends on the interaction between space-time geometry, quantum fluctuations, and cosmic thermodynamic processes. Furthermore, the black hole information paradox can be understood as a limitation of human epistemological description, rather than an ontological loss of physical reality. This research also confirms that the direction of time is a consequence of the emergence of increased entropy in the universe. The novelty of this research lies in the integration of the phenomenon of black hole evaporation with a structural-relational ontological approach to explain physical reality as a dynamic and emergent process.
Co-Authors Abu Yazid Raisal Adriyanti, Aissyah Lathifah Alatif, Yahya Halim Ariefka, Reza Edward Alfin Goldbert Harmuda Duva Sinaga Jaya, Pratama Karim, Mohammad Alfin Kasim, Mohd Shahir Muhlis, Dasep Nirwanty, Vica Putri Noor, RR Afrida Nurahman, Arip Pandara, Dolfie Paulus Pramarta, Pandhu Purwanto, Romdhon Putri, Phoebe Cathlya Ismanto Saprudin Saprudin, Saprudin Siagian, Ruben Cornelius Sri Mardiyati Wardana, Febriansyah Wibowo, Arnowo Hari Wujarso, Riyanto Yasin, Verdi