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All Journal JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI International Journal of Electronics and Communications Systems Islamic Journal of Integrated Science Education
Dixit, Aparna
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Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Mathematics Physics Social Sciences Other

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 1 
Analysis of Sr2Mg (BO3)2Tb3+ Green Emitting Phosphor for Solid State Lighting: Implication for Light Emitting Diode (LED) Panse, Vishal R; Rahate, Gaurav; Saregar, Antomi; Kaur, Manmeet; Dixit, Aparna
International Journal of Electronics and Communications Systems Vol. 1 No. 1 (2021): International Journal of Electronics and Communications System
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijecs.v1i1.9334

Abstract

With the assist of  customized step wise combustion synthesis method Sr2Mg(BO3)2: Tb3+  phosphors were synthesize along with the luminescent proprieties, XRD, chromaticity coordinates with effect of emission intensity with related with the corresponding concentration were studied. The emission spectrum of Sr2Mg(BO3)2  :Tb3+ (x=0.2 to 2 mol percent) excited by 353 nm exhibits a strong green emission among peak location at 546 nm is recognized to F-F transitions of Tb3+ 5D4-7F5 ion. This study suggest that Sr2Mg(BO3)2: Tb3+ phosphor be a prominent material as a green constituent for phosphor- transformed W-LEDs  for SSL
Modifying the DC Servo Motor Observed by Particle Swarm Optimization Techniques Saxena, Arti; Panse, Vishal R; Asyhari, Ardian; Umam, Rofiqul; Michalska-Domańska, Marta; Dixit, Aparna
International Journal of Electronics and Communications Systems Vol. 4 No. 2 (2024): International Journal of Electronics and Communications System
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijecs.v4i2.25071

Abstract

The PID controller's optimized tuning improves the control system's functionality. This work presented the tuning of the PID/FOPID controller by the conventional Ziegler-Nichols (ZN) method and the Particle Swarm Optimization (PSO) algorithm. The PID controller is the most popular in the industry because it is simple to implement, has good computing ability, and provides a robust system. These methods are implemented on the DC servomotor system to optimize the transient responses like rise time (??), settling time (??), and peak overshoot (??) to get a better result. The PID controller tuned by the conventional ZN method gives a longer settling time, a longer rise time, and a higher peak overshoot. The PSO algorithm is utilized to overcome the significant overshoot and considerable settling time obtained in the conventional Ziegler-Nichols method. Analyzing and comparing the MATLAB simulation results, it is observed that PSO algorithms provide a better-optimized response over the ZN method with FOPID controller in respect of less rise time (?? =0.0392 sec.), less settling time (??=0.0605 sec.) and peak overshoot (??=1.92 percent). The results obtained by the proposed controller provide better reliability and better response.
Dynamic Virtual Environment Synthesis: Leveraging Machine Learning for Real-Time 3D Object Integration in VR Spaces Pathak, Anshuman; Singh, Anmol Deep; Saregar, Antomi; Dixit, Aparna; Dewalkar, S. V.; Panse, V. R.
International Journal of Electronics and Communications Systems Vol. 5 No. 1 (2025): International Journal of Electronics and Communications System
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ijecs.v5i1.28137

Abstract

Existing VR environments relies on static asset libraries and predesigned scenarios, which limits personalization and fails to account for diverse user needs. This paper aims Dynamic Virtual Environment Synthesis (DVES), a new framework based on machine learning to generate and control a large library of 3D objects for real-time creation and context-aware adaptation. The research method categorizes the system design into five main components: data collection, preprocessing and annotation, machine learning model training, VR environment integration, and user interaction. DVES allows users to customize VR spaces through natural language, gestures, or biometric feedback, harnessing generative models for creating objects, reinforcement learning for adaptive environments, and neural rendering for adding realism, building foundation for the next-gen entertainment ecosystem. DVES improves gaming, training, therapy, and education by mediating static design and real-time systems. Unlike the existing conventional VR systems which depends on the static and prebuilt scenes, DVES continuously learns from user interactions, enabling the system to evolve dynamically. This novel study investigates scalability, real-time performance, and natural interfaces and provides insights into future applications, giving a custom VR experience to the users. In long term, DVES could serve as a foundation for fully autonomous VR ecosystems, creating a personalized and immersive digital experience. The study ensures transitioning VR from static, predesigned systems to self-sustaining, user-driven digital worlds.
Photoluminescence and Characterization of Eu2+ Doped Ca10(PO4)6F2 phosphor Panse, Vishal R; Saregar, Antomi; Dewalkar, Snehal V; Waghare, S. M.; Dixit, Aparna
Jurnal Ilmiah Pendidikan Fisika Al-Biruni Vol 14 No 2 (2025): Jurnal Ilmiah Pendidikan Fisika Al-Biruni
Publisher : Universitas Islam Negeri Raden Intan Lampung, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/jipfalbiruni.v14i2.24652

Abstract

Efficient blue-emitting phosphors are crucial for the development of near-ultraviolet (near-UV) pumped white light-emitting diode (LED) devices. In this study, Ca10(PO4)6F2 triggered with Eu2+ phosphors were successfully synthesized via a facile combustion synthesis route in an open-air environment, enabling the formation of homogeneous and crystalline fine powders. The structural and morphological characteristics were analyzed using X-ray diffraction (XRD) and scanning electron microscopy (SEM), confirming the formation of a single-phase apatite structure with well-defined particle morphology. Photoluminescence (PL) properties were investigated under ultraviolet excitation. The synthesized Ca10(PO4)6F2:Eu2+ phosphors exhibited an intense blue emission centered at 432 nm when excited at 348 nm, which is attributed to the allowed 4f7  4f65d1 electronic transition of Eu2+ ions. The strong blue emission in the near-UV excitation region indicates effective luminescence performance of the host lattice. These results demonstrate that Ca10(PO4)6F2:Eu2+ phosphors prepared by the combustion method are promising candidates for blue-emitting components in near-UV pumped white LED applications.
The Use of Infographics As A Representation Medium to Support Students’ Understanding in Physics Learning: A Literature Review Laela, Oktavia; Dixit, Aparna
Islamic Journal of Integrated Science Education (IJISE) Vol. 4 No. 2 (2025): July
Publisher : Program Studi Tadris IPA, Fakultas Tarbiyah dan Ilmu Keguruan, Universitas Islam Negeri (UIN) Syekh Wasil Kediri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30762/ijise.v4i2.5940

Abstract

Physics learning is often perceived as challenging by students due to its abundance of abstract concepts and quantitative explanations. One strategy that can help facilitate understanding is the use of infographics as a visual representation medium. This study aims to identify and analyze the role of infographics in enhancing students’ comprehension of physics concepts, while also exploring their potential and challenges in secondary school settings. The method employed is a literature review of seven relevant scientific articles discussing the use of infographics in the context of physics education. The analysis was conducted by examining the key findings of each article and categorizing them based on indicators of learning benefits. The findings reveal that infographics can increase students’ learning interest, engagement, and academic performance, both in cognitive and affective domains. Furthermore, infographics are effective in fostering students’ creativity through the implementation of project-based learning models and problem-based approaches. Identified challenges include teachers’ limited skills in designing effective infographics and the availability of supporting resources. Overall, the use of infographics holds significant potential as an innovative strategy to visually represent scientific information and improve the quality of physics learning in secondary schools.
Co-Authors Antomi Saregar Ardian Asyhari Dewalkar, S. V. Dewalkar, Snehal V Laela, Oktavia Manmeet Kaur Michalska-Domańska, Marta Panse, V. R. Panse, Vishal R Pathak, Anshuman Rahate, Gaurav Rofiqul Umam Saxena, Arti Singh, Anmol Deep Waghare, S. M.