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๐Ÿ” vivek maradia ๐Ÿ“‚ Physics
Showing 146 results for "vivek maradia" in Physics
Physics Preprint PDF DOI

A divergent-beam surface plasmon resonance architecture for multiplexed malaria biosensing

Amos. S. Kiyumbi, Jordan. H. Hossea ยท 2026

We present a numerical study of a divergent-beam Kretschmann surface plasmon resonance (SPR) platform for multiplexed malaria biosensing. A Powell-lens-generated angular fan enables camera-based angulโ€ฆ

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Physics Preprint PDF DOI

High-Precision Photometry with a scientific CMOS Camera: II On-Sky Testing of the Marana camera at the NGTS facility

Ioannis Apergis, Daniel Bayliss, Paul Chote, James McCormac, Peter J. Wheatley, Morgan A. Mitchell, Jorge Fernandez Fernandez, Sam Gill, Edward M. Bryant, Toby Rodel, Leonidas Asimakoulas, David R. Anderson, James A. Blake, Sara L. Casewell, Fintan Eeles-Nolle, Faith Hawthorn, James S. Jenkins, Monika Lendl, Isobel S. Lockley, Maximiliano Moyano, Sean M. O'Brien, Suman Saha, Alexis M. S. Smith, Philip G. Steen, Jose I. Vines, Richard G. West, Tafadzwa Zivave ยท 2026

Modern scientific CMOS cameras offer very fast readout speeds and low read noise. In this study, we evaluate the performance of the Andor Marana CMOS camera through on-sky testing carried out at the Nโ€ฆ

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Physics Preprint PDF DOI

Circular V-grooves on single-crystal gold: optical properties and sensing feasibility

Amos Sospeter Kiyumbi ยท 2026

Single-crystal Au(111) microplates provide an ultra-smooth, low-defect platform for reproducible plasmonic nanocavities. Here we realize reflection-mode whispering-gallery metasurfaces comprising periโ€ฆ

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Physics Preprint PDF DOI

Impact of front-end parameters of the ARCADIA MD3 on charged particle detection

C. Pantouvakis, S. Garbolino, M. Rignanese, P. Affleck, A. Apresyan, P. Azzi, N. Bacchetta, C. Bonini, D. Chiappara, S. Ciarlantini, D. Falchieri, A. Hayrapetyan, S. Mattiazzo, L. Pancheri, D. Pantano, A. Rivetti, M. Rolo, R. Santoro, R. Turrisi, J. Wyss, S. Xie, A. Zingaretti, I. Zoi, P. Giubilato ยท 2026

The ARCADIA INFN R&D project developed a Fully Depleted Monolithic Active Pixel Sensor (FD-MAPS) using a customized LFoundry 110 nm CIS process. The first in-beam characterization of the ARCADIA Main โ€ฆ

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Physics Preprint PDF DOI

Pixel response characterization of the ARCADIA Fully Depleted MAPS

C. Pantouvakis, M. Rignanese, T. Zenger, S. Ciarlantini, A. Zingaretti, P. Azzi, C. Bonini, D. Chiappara, S. Mattiazzo, D. Pantano, J. Wyss, A. Apresyan, N. Bacchetta, L. Bolla, A. Hayrapetyan, C. Pena, N. Salvador, S. Xie, I. Zoi, D. Falchieri, S. Garbolino, L. Pancheri, A. Paterno, A. Rivetti, M. Rolo, R. Santoro, P. Giubilato ยท 2025

Monolithic Active Pixel Sensors (MAPS) achieved widespread use in several scientific applications, thanks to their properties, such as low material budget and high granularity. The ARCADIA INFN projecโ€ฆ

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Physics Preprint PDF DOI

High-Precision Photometry with a scientific CMOS Camera: I Lab Testing of the Marana camera

Ioannis Apergis, Daniel Bayliss, Leonidas Asimakoulas, Paul Chote, James McCormac, Morgan A. Mitchell, Sam Gill, Philip G. Steen, Peter Wheatley ยท 2025

Scientific CMOS cameras are becoming increasingly prevalent in modern observational astronomy. We assess the ability of CMOS image sensors technology to perform high-precision photometry with a detailโ€ฆ

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Physics Preprint PDF DOI

New Method for Injectable Quinine Quality Assurance Control Using a Multi-Spectral Microscope

A. Sow, I. Traore, T. Diallo, A. BA ยท 2025

Africa is the world region that is most affected by malaria. Among the therapies used, injectable quinine is considered to be one of the effective antimalarial drug, however non-quality assured antimaโ€ฆ

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Physics Preprint PDF DOI

maria goes NIFTy: Gaussian Process-Based Reconstruction and Denoising of Simulated (Sub-)Millimetre Single-Dish Telescope Data

Jonas Wurzinger, Joshiwa van Marrewijk, Thomas W. Morris, Richard Fuchs, Tony Mroczkowski, Lukas Heinrich ยท 2025

(Sub-)millimetre single-dish telescopes feature faster mapping speeds and access larger spatial scales than their interferometric counterparts. However, atmospheric fluctuations tend to dominate theirโ€ฆ

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Physics Preprint PDF DOI

Primordial black hole formation in matter domination

Ehsan Ebrahimian, Ali Akbar Abolhasani, Mehrdad Mirbabayi ยท 2025

We study Primordial Black Holes (PBHs) formed by the collapse of rare primordial fluctuations during an early period of Matter Domination. The collapse threshold strongly depends on the shape of the pโ€ฆ

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Physics Preprint PDF DOI

Assessment of the AlUla Manara astronomical site in Saudi Arabia using ECMWF ERA5 Reanalysis data

G. Lombardi, G. Fildes, O. Cuevas, T. Y. Alrefay, N. Almalik ยท 2025

As part of Saudi Arabia Vision 2030 and under the guidance of the Royal Commission for AlUla (RCU), efforts are underway to establish AlUla Manara as the Kingdom first major astronomical observatory. โ€ฆ

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Physics Preprint PDF DOI

An effective microscopic model for plasmonic sensing of malaria

A. S. Kiyumbi, M. S. Tame ยท 2025

Malaria remains a major health threat in low-resource regions and rapid diagnostic tests often lack the sensitivity required for early detection. To address this and help establish more sensitive testโ€ฆ

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Physics Preprint PDF DOI

Brownian motion with stochastic energy renewals

Ion Santra, Kristian St{o}levik Olsen ยท 2025

We investigate the impact of intermittent energy injections on a Brownian particle, modeled as stochastic renewals of its kinetic energy to a fixed value. Between renewals, the particle follows standaโ€ฆ

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Note on conserved currents in static Conformal Killing Gravity

Carlo Alberto Mantica, Luca Guido Molinari ยท 2025

Conserved currents are discussed for static Conformal Killing Gravity, with explicit expressions in static spherical symmetry with anisotropic matter fluid or coupled to (non)linear electromagnetism. โ€ฆ

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Black hole solutions in Cotton gravity coupled to nonlinear electrodynamics

Ednaldo L. B. Junior, Jose Tarciso S. S. Junior, Francisco S. N. Lobo, Manuel E. Rodrigues, Luis F. Dias da Silva, Henrique A. Vieira ยท 2025

The framework of General Relativity (GR) has recently been expanded through the introduction of Cotton Gravity (CG), a theoretical extension proposed by J. Harada. This modified approach integrates thโ€ฆ

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Physics Preprint PDF DOI

Characteristic oscillations in frequency-resolved heat dissipation of linear time-delayed Langevin systems: Approach from the violation of the fluctuation-response relation

Xin Wang, Ruicheng Bao, Naruo Ohga ยท 2025

Time-delayed effects are widely present in nature, often accompanied by distinctive nonequilibrium features, such as negative apparent heat dissipation. To elucidate detailed structures of the dissipaโ€ฆ

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On the distributed resistor-constant phase element transmission line in a reflective bounded domain

Anis Allagui, Enrique H. Balaguera, Chunlei Wang ยท 2024

In this work we derive and study the analytical solution of the voltage and current diffusion equation for the case of a finite-length resistor-constant phase element (CPE) transmission line (TL) netwโ€ฆ

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Tolman-Oppenheimer-Volkoff equation and static spheres in Conformal Killing gravity

Carlo Alberto Mantica, Luca Guido Molinari ยท 2024

We derive the analog of the Tolman - Oppenheimer - Volkoff equation in conformal Killing gravity in a static spherically symmetric spacetime, sourced by anisotropic fluid matter. It differs from the oโ€ฆ

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Physics Preprint PDF DOI

Opening Pandora's box: Kundt solutions to Conformal Killing Gravity

Sigbjorn Hervik, Edmar G. Pantohan ยท 2024

We consider Kundt solutions to vacuum Conformal Killing Gravity (CKG) proposed by Harada and find numerous solutions in four dimensions and in higher dimensions. In CKG theory the cosmological constanโ€ฆ

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Designing reaction-cross-diffusion systems with Turing and wave instabilities

Edgardo Villar-Sepulveda, Alan R. Champneys, Andrew L. Krause ยท 2024

General conditions are established under which reaction-cross-diffusion systems can undergo spatiotemporal pattern-forming instabilities. Recent work has focused on designing systems theoretically andโ€ฆ

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Physics Preprint PDF DOI

Unified scaling model for viscosity of crude oil over extended temperature range

Bulat Galimzyanov, Maria Doronina, Anatolii Mokshin ยท 2024

The viscosity of crude oil is an important physical property that largely determines the fluidity of oil and its ability to seep through porous media such as geological rock. Predicting crude oil viscโ€ฆ

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