Physics, Astronomy, Optics and Photonics
Parasitic Resistance Impacting Fill Factor of a GaAs Solar Cell
Jan 2025
Fast Track Article
Journal Title:
Current Physics
The efficiency of a photovoltaic cell is determined by the maximum power it can deliver to a load. Power output is a function of the fill factor. The fill factor determines the shape of the I-V characteristics of a solar cell. It is dependent on various environmental as well as internal parameters. Two major parameters that influence the fill factor are the parasitic series and shunt resistances (RS and RSH) present in a photovoltaic device. In this regard numerical a Read More
Gold Ring and Graphite-Based Plasmonic Photonic Crystal Sensor for Biomedical Applications
Dec 2024
Fast Track Article
Journal Title:
Current Physics
Introduction This research puts forward a cost-efficient high-efficiency plasmonic photonic crystal sensor for biomedical applications that functions in the near-infrared range. Method The sensor design is composed of multiple two-dimensional photonic crystal layers stacked in the order of SiO2 foundational layer graphite layer MgF2 waveguide and finally a gold ring over the top. The graphite layer is deposited for optimum sensing and high absorption Read More
Creation of Technology and Devices for the Preparation of Motor Fuels Containing Biocomponents
Dec 2024
Fast Track Article
Journal Title:
Current Physics
Background In the world active research is being conducted to create motor fuels containing bio-oil as a component derived from renewable environmentally friendly sources of raw materials such as wood processing waste agriculture marine algae etc. One of the most commonly used technologies for bio-oil production is fast pyrolysis. Due to the physical and chemical properties of such bio-oil direct blending with petroleum motor fuel is not possible. O Read More
Quantum-Mechanical Explanation of Young’s double slit Experiment through Simulation of the Photon Coordinate Wave Function
Dec 2024
Fast Track Article
Journal Title:
Current Physics
Background In the rapidly developing areas of photonics associated with quantum teleportation of photons quantum cryptography and quantum computing ideas are becoming increasingly relevant about the certain localized states of single or several entangled photons moving in space and time. As is known in quantum mechanics localized states of particles can only be described using wave functions in coordinate representation – the corresponding wav Read More
Aero-space and Astro-cosmic Microbial Studies: A Vulgar Epithet Yet an Unattended Potential Nursing/Distribution Hub of Pathogenic Strains
Dec 2024
Fast Track Article
Journal Title:
Current Physics
Introduction The ubiquity of microorganisms has in recent times extended relevance from the physical environment to outer space/cosmic environment. Such outer space/cosmic environments were over time reported microbe free however recent report showed otherwise implicating space/cosmic travel. Method Diverse interest-based investigators have raised unanswered questions while others yet remain probable. Bio-scientific evaluation of astro Read More
Classical Stark and Zeeman Effects of Axially-symmetric Circular Rydberg States of He and He-like Ions
Nov 2024
Fast Track Article
Journal Title:
Current Physics
BackgroundCircular Rydberg States (CRS) were studied theoretically and experimentally in numerous works. In particular in the previous paper by one of us there were derived analytical expressions for the energy of classical CRS in collinear electric (F) and magnetic (B) fields of arbitrary strengths imposed on a hydrogenic system (atom or ion). For the magnetic field B of any strength the author of that study gave formulas for the dependency of the classi Read More
Quantum Gravity without Quantization
Nov 2024
Fast Track Article
Journal Title:
Current Physics
Objective An alternative way to construct a quantum model of gravity is described in this paper not by quantizing the classical model but by introducing a graviton background which has a low temperature but strongly interacts with any particle. Methods Gravity in this case is the effect of screening the background of gravitons by bodies; several additional effects appear when photons or bodies move through the background. Results Using Planck' Read More
Developing a New Method for the Estimation of Valsartan (VST) in Pharmaceutical Dosage Samples by Using Diazotization and Coupling Reactions Spectrophotometrically
Oct 2024
Fast Track Article
Journal Title:
Current Spectroscopy and Chromatography
Introduction A new method for valsartan (VST) estimation in pharmaceutical dosage samples by spectrophotometry was developed. Method The method was based on the formation of coloured dye by the diazotization reaction of 3-amino-2-naphthol with sodium nitrite in an acidic medium to form diazonium compounds which were then coupled with VST in a basic medium. Results The drug sample showed linearity in the range 4.6 - 24.2 μgmL-1 and th Read More
Advancements of Lanthanide-doped Phosphors in Solid-state Lighting Applications
Jan 2024
Article
Source:
Current Physics
1,
E220124225904
(2024)
The challenge of energy conversion and enhancement has been a problem in the world of lighting technologies as the population and global industrialization grow rapidly. Solid-state lighting (SSL) has proven to be a better alternative in the illumination industry because of its environmentally friendly and high energy efficiency. Lanthanide-doped phosphors have gained global attention in SSL because they have versatile applications with enhanced overal Read More
Understanding the Origins of Quark Charges, Quantum of Magnetic Flux, Planck’s Radiation Constant and Celestial Magnetic Moments with the 4G Model of Nuclear Charge
Jan 2024
Article
Source:
Current Physics
1,
E090524229812
(2024)
IntroductionIn our previous published papers considering 3 large atomic gravitational constants assumed to be associated with weak strong and electromagnetic interactions we have proposed the existence of a nuclear charge of magnitude en=2.95e and developed a nuclear mass formula associated with strong and weak interactions having 4 simple terms and only one energy coefficient.MethodsTwo important assumptions are that there exists Read More
Advanced Gyrotron Concepts for Spectroscopic Applications
Jan 2024
Article
Source:
Current Physics
1,
E160424228964
(2024)
BackgroundCurrently some modern spectroscopic applications require sub-terahertz and terahertz continuous-wave electromagnetic radiation sources with power levels from 0.1 to 100 W. Gyrotron a powerful high-frequency vacuum electronics device is considered one of the promising sources for these aims.MethodsModification of the gyrotron design promotes the widespread use of these devices for DNP/NMR spectroscopy.ResultsPromising non- Read More
Measurement of Viscoelastic Properties by Free Loading-Mass Method
Jan 2024
Article
Source:
Current Physics
1,
E210624231206
(2024)
BackgroundA procedure for determining the elastic and viscous properties of the sample material on the basis of the forced vibrations of a sample of mass loaded with a certain mass is developed. One of advantages of using the top mass instead of a rigid fixation is the appearance of an additional deformation resonance the frequency of which is times smaller than the resonance frequency of the fixed sample.MethodThe experimental setup implementin Read More
NiO@PANI based Nanocomposites as an Advanced Functional Material: Experimental and Computational Approach
Jan 2024
Article
Source:
Current Physics
1,
E081023221875
(2024)
BackgroundIndividually metal nanoparticles (NPs) and conducting polymers show unique properties due to small size large surface area and high order of conductivity. But their combination may result in a synergistic effect in properties.MethodsThe NiO NPs and conducting polymer Polyaniline were prepared by modified Sol-gel and chemical oxidative methods respectively. Powder XRD FTIR TEM and UV-visible methods were used for the structural evaluati Read More
Variations in the Solar Modulation Parameter Over the Last 9.5 Thousand Years and the Tilt of the Geomagnetic Dipole
Jan 2024
Article
Source:
Current Physics
1,
E120624230972
(2024)
BackgroundCalculations of the solar modulation parameter (Φ) over the past millennia typically use the relationship between the production rate of cosmogenic isotopes the earth's dipole moment and the magnitude of Φ. The cosmogenic isotopes 14C and 10Be are typically used in these studies. When studying solar modulation the cyclic change in dipole tilt is usually not taken into account which affects estimates of past solar activity.MethodsTree Read More
The Mass Gap in QCD and a Restriction on Gluon Masses
Jan 2024
Article
Source:
Current Physics
1,
E030524229628
(2024)
In this study we prove that it is necessary to introduce the non-zero gluon masses into the fundamental Lagrangian of Quantum Chromodynamics in order to describe the mass gap in the reaction of electron-positron annihilation into hadrons. Further in this work a new restriction on the gluon masses is imposed and the renormalized theory with non-zero Lagrangian gluon masses is presented.
Fundamental Laws and Quantum Dynamics
Jan 2024
Article
Source:
Current Physics
1,
E27723348321035
(2024)
BackgroundRecently we obtained a unitary theory of quantum mechanics and general relativity where a quantum particle is a continuous distribution of matter in the two conjugate spaces of the coordinates and momentum quantized by the equality of the mass parameter describing the relativistic dynamics of the matter with the mass as an integral of the matter density. However in this framework we have not explicitly revealed the connection betwe Read More
Optimization of a Validated Liquid Chromatographic Method with Chemometric Approach for Estimation of Eugenol from Seed Powder Extract and Perform Anti-oxidant Activity
Jan 2024
Article
Source:
Current Spectroscopy and Chromatography
10,
E290324228475
(2024)
BackgroundDeveloped and validated a new reverse phase high-performance liquid chromatographic (RP-HPLC) method and it is prompt precise sensitive and robust for the estimation of eugenol in seed powder extract of Myristica fragrans.ObjectiveThe chemometric approach was utilized to obtain a rugged and definitive chromatographic method for the purpose.MethodsMethod variables such as acetonitrile (%) and flow rate were investigated for robustn Read More
Book Review: Applications of Ion Exchange Materials in Biomedical Industries
Jan 2024
Article
Source:
Current Spectroscopy and Chromatography
10,
E230524230252
(2024)
The book titled “Applications of Ion Exchange Materials in Biomedical Industries” edited by Inamuddin was published by Springer in 2019. The book has 235 pages and the print version has ISBN 978-3-030-06081-7. The eBook version has ISBN 978-3-030-06082-4 and is available at https://doi.org/10.1007/978-3-030-06082-4. Ion exchange chromatography has become increasingly popular in recent years due to its use in various industries including biotech Read More
Method Development and Validation of Stability-Indicating HPLC-UV Method for Determination of 5 -Fluorouracil
Jan 2024
Article
Source:
Current Spectroscopy and Chromatography
10,
E22132406291221
(2024)
IntroductionIn the realm of pharmaceutical analysis the development and validation of a High-Performance Liquid Chromatography with Ultraviolet Detection (HPLC-UV) method for the precise determination of 5-FU stand as a crucial endeavor.MethodsThis study outlines the systematic process of method development optimization and subsequent validation to ensure the reliability and applicability of the method in pharmaceutical quality control. Met Read More
Review on Intrinsic Shape of Elliptical Galaxies
Jan 2024
Article
Source:
Current Physics
1,
E27723348299504
(2024)
Elliptical galaxies as one of the fundamental types of galaxies have attracted astronomers due to their intriguing properties. In this review we explore the intrinsic shape of elliptical galaxies a field that plays a pivotal role in understanding their formation evolution and interactions within the cosmos. Methods for intrinsic shape determination using photometric and kinematic methods are extensively discussed. The use of photometric data and surface brigh Read More
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