IOSR-JAP   Volume-16 ~ Issue-4 ~ Jul. – Aug. 2024

ABSTRACT: BaS: Ce+3-ions matrix thin films were synthesized in doping ranges 2,4,6,8 and 10 at.% onto ultrafine Silicon wafer substrates using Successive Ionic Layer Adsorption and Reaction (SILAR) technique and reports the structural lattice parameters, nanocrystallite sizes, microstress, strains and dislocation densities in the films. Field Emission Scanning Electron Microscope (FESEM) and XRD- techniques were used in the characterization works......

Keywords: BaS thin films, doping, FESEM, XRD

[1]. Okoli Donald Nuanyere,, IOSR Journal of Applied Physics (IOSR-JAP) Vol. 7, Issue 4 Ver.11 (Jul.-Aug., 2015), 10-15
[2]. Mohammed Ameri, Amina Touia, Houari Khachai, Zoubir Mahdjoub, Mohamed Zoheir Chekroun, Amei Slamani, Materials Science and Applications, Sept., 2012, 3,612-618
[3]. K Syassen, N E Christenssen, H Winzen, K Fischer and J Evers, Physical Review B, Vol. 35, No.8, 1987, 4052-4059
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ABSTRACT: The torsion tensor field Ω𝑗𝑘𝑖 determines the Riemann curvature tensor 𝑅𝑗𝑘𝑙𝑖 and consecuently as a function of the Electromagnetic Field......

Keywords: Christoffel Symbols, Cartan Tensor, Riemann tensor, Transporter, Covariant Derivative

[1]. L.D. Landau And E.M. Lifshitz; The Classica Theory Of Fields; Addison -Wesley Publishing Company, Inc.
[2]. Alcantara Montes Samuel And Velazquez Arcos Juan Manuel; Iosr Journal Of Applied Physics Vol. 13 (May -June) Pp39-41, 2021.
[3]. S. Capozziello And C. Stornaiolo; Annales De La Foundation De Broglie, Vol.32 ,2-3, 2007
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ABSTRACT: This study aims to analyse in detail the gravity data covering the Adamaoua Plateau region in order to improve our understanding of its geological setting. To achieve this, terrestrial gravity data were combined with data computed from the GGM02C gravity model, and the tilt angle method and Euler deconvolution were applied to the densified Bouguer anomalies of the study area to highlight the different geological contacts and estimate their depth. A strong.......

Keywords : Structural map, GGM02C

[1] D. Khattach, P. Keating, T. Chennouf, P. Andrieux, And A. Milhi, "Apport De La Gravimétrie À L'étude De La Structure Du Bassin Des Triffa (Maroc Nord-Oriental): Implications Hydrogéologiques," Comptes Rendus Geoscience, Vol. 336, No. 16, Pp. 1427-1432, 2004.
[2] P. Keating And M. Pilkington, "Euler Deconvolution Of The Analytic Signal And Its Application To Magnetic Interpretation," Geophysical Prospecting, Vol. 52, No. 3, Pp. 165-182, 2004.
[3] D. Khattach, H. Mraoui, D. Sbibih, And T. Chennouf, "Analyse Multi-Échelle Par Ondelettes Des Contacts Géologiques: Application À La Carte Gravimétrique Du Maroc Nord-Oriental," Comptes Rendus Geoscience, Vol. 338, No. 8, Pp. 521-526, 2006.
[4] A. Hamad Et Al., "Integrating Gravity Data For Structural Investigation Of The Youkous-Tebessa And Foussana-Talah Transboundary Basins (North Africa)," Euro-Mediterranean Journal For Environmental Integration, Vol. 6, Pp. 1-11, 2021.
[5] D. Y. H. Poudjom, "Apport De La Gravimétrie À L'étude De La Lithosphère Continentale Et Implications Géodynamiques. Etude D'un Bombement Intraplaque: Le Massif De L'adamaoua (Cameroun)," Université De Paris-Sud (Unpublished), 1993.

ABSTRACT: Glass of the system:(40-x)Bi2O3:10ZnO:10Li2O:10MgO:10V2O5:20B2O3: x Pr2O3. (where x=1, 1.5,2 mol %) have been prepared by melt-quenching method. (where x=1,1.5 and 2 mol%) have been prepared by melt-quenching technique. The amorphous nature of the prepared glass samples was confirmed by X-ray diffraction. Optical absorption, Excitation, fluorescence spectra have been recorded at room temperature for all glass samples. Judd-Ofelt intensity parameters Ωλ (λ=2, 4 and 6) are evaluated from the intensities of various absorption bands of optical absorption spectra. Using these intensity parameters various radiative properties like spontaneous emission probability, branching ratio, radiative life time and stimulated emission cross–section of various emission lines have been evaluated.

Keywords: ZLMVBB Glasses, Spectral Properties, Judd-Ofelt Theory, Thermal Properties

[1]. Meena,S.L.(2024). Spectral and Thermal Properties of Tm3+ Doped in ZincLithiumTungstenAntimonyBorophosphateGlasses, J.Appl.Phys.16 (1), 10-15.
[2]. Mandal, P.,Aditya,S.and Ghosh,S.(2020).Optimization of rare earth(Er3+) doping level in lead zinc phosphate glass through Judd-Ofelt analysis,Materials Chem. And Phy., 246, 122802,1-7.
[3]. Meena,S.L.(2023). Spectral and Raman Analysis of Er3+ doped Ytterbium Zinc Lithium Sodalime Magnesium Borophosphate Glasses, In. J. Inn. Res. Sci.,Eng. and Tech.,12,10915-24.
[4]. Kaur,R.,Rakesh,R.B.,Mhatre,S.G.,Bhatia,V.,Kumar,D.,Singh,H.,Singh,S.P.andKumar,A. (2021). Physical, optical, structural and thermo luminescence behaviour of borosilicate glasses doped with trivalent neodymium ions, 117, 111109.
[5]. Hongisto, M., Vebar, A., Botti,N.G., Danto, S.,Jubera,V.and Petita,L.(2020).Transparent Yb3+ doped phosphate glass ceramics, Ceremics International 46(16),26317-26325.

ABSTRACT: Introducing a glass modifier transforms the physical properties of the host glass network. Studying the effects of Ba2+ as a glass modifier, various physical and FT-IR experiments were performed on glasses with different compositions of 50B2O3-20Bi2O3-(30-x)TeO2-xBaO (where x = 5, 10, 15, 20 and 25 mole%). X-ray diffractograms were obtained for glass samples at room temperature. Based on the X-ray diffractograms, it can be concluded that the glass samples lack any distinct peaks, suggesting that they have an amorphous structure. Using the Archimedes principle, the density (ρ) of the glass samples was determined. Physical attributes such as molar volume (Vm) and oxygen packing density (OPD) were measured. Spectral data in the 400–2000 cm–1 range were obtained using infrared spectroscopy.

Keywords: Glasses, Density, Bands in FTIR.

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2. Mohamed, N.B.; Yahya, A.K.; Deni, M.S.M.; Mohamed, S.N.; Halimah, M.K.; Sidek, H.A.A. Effects of concurrent TeO2 reduction and ZnO addition on elastic and structural properties of (90−x)TeO2–10Nb2O5–(x)ZnO glass. J. non-Cryst. Solids 2010, 356, 1626–1630.
3. Foldvari, I.; Peter, A. Basic spectroscopic properties of bismuth tellurium oxide, Bi2TeO5. J. Mater. Sci. 1992, 27, 750–754.
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5. Ozdanova, J.; Ticha, H.; Tichy, L. Optical band gap and Raman spectra in some (Bi2O3)x(WO3)y(TeO2)100−x−y and (PbO)x(WO3)y(TeO2)100−x−y glasses. J. non-Cryst. Solids 2009, 355, 2318–2322.

ABSTRACT: A photovoltaic (PV) panel, also called a solar panel, is a device that converts sunlight into electricity by means of the photovoltaic effect. The photovoltaic effect occurs when certain materials are exposed to light, generating an electric current that converts light energy into electrical energy and is an essential component of a solar energy system, responsible for harnessing the sun's renewable energy. This research investigates the impact of temperature on the performance of mono-crystalline solar panels. Two mono-crystalline Canadian solar panels were installed outdoors near the Auditorium of Imo State University Owerri, Nigeria. One of the solar panels was positioned at an angle, while the other was placed on a flat platform

Keywords: Solar Panel, PV, Mono-crystalline, voltage-current (I-V) characteristics, temperature.

[1]. Chineke, C.T. 2009. "Boosting Electricity Supply In Nigeria: Wind Energy To The Rescue?". Pacific Journal Of Science And Technology. 10(2):553- 560.
[2]. V. N. Dike, T. C. Chineke, O. K. Nwofor, And U. K. Okoro., (2011) "Evaluation Of Horizontal Surface Solar Radiation Levels In Southern Nigeria" Journal Of Renewable And Sustainable Energy 3, 023101
[3]. Chetan Singh Solanki, 2013 "Solar Photovoltaic Technology And Systems A Manual For Technicians, Trainers And Engineers" Delhi-110092.
[4]. Chander, Subhash; Purohit, A.; Sharma, Anshu; Nehra, S. P.; Dhaka, M. S. (2015) : Impact Of Temperature On Performance Of Series And Parallel Connected Monocrystalline Silicon Solar Cells, Energy Reports, Issn 2352-4847, Elsevier, Amsterdam, Vol. 1, Pp. 175-180, Http://Dx.Doi.Org/10.1016/J.Egyr.2015.09.001
[5]. V.V. Tyagi , Nurul A.A. Rahim , N.A. Rahim , Jeyraj A./L. Selvaraj, (2013) "Progress In Solar Pv Technology: Research And Achievement" Journal Homepage: Www.Elsevier.Com/Locate/Rser. Renewable And Sustainable Energy Reviews 20 (2013) 443–461.

ABSTRACT: This paper investigates controlled quantum teleportation of a three-qubit state using a W-class entangled state. Unlike GHZ states, W-class states offer robustness against qubit loss, making them suitable for practical quantum communication. We propose a protocol incorporating a control mechanism to ensure teleportation occurs only under specific authorized conditions, enhancing security and control. The teleportation fidelity is rigorously analyzed under various quantum noise models, demonstrating the scheme's feasibility and robustness. The main result of......

Keywords: Fidelity, Quantum Teleportation, W-class states.

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ABSTRACT: This research explores the use of ultra-cold neutrinos to entangle with dark matter aiming to study it's behavior through a CryoDMTPC-CMBR detector the methodology incorporates quantum mechanics principle, including randomness and quantum gates, to enhance our understanding of dark matter's properties and interactions.

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ABSTRACT: Intensity distribution of any imaging system initially depends on the type of the aperture. Light flux passing through an aperture changes with its geometrical shape; so shaping an aperture itself acts as an apodizer. In this paper, resolution of two point objects having unequal and equal intensities has been investigated under various coherence illumination with truncated apertures in the case of aberration free with defocus and primary spherical aberration.

Keywords: Two point resolution, Truncation of circular aperture, coherence, primary aberrations

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ABSTRACT: Electromagnetic radiation, specifically radiofrequency electromagnetic fields (RF-EMFs), has become a ubiquitous aspect of modern life, with frequencies ranging from 10 MHz to 300 GHz in the electromagnetic spectrum. Cell phone technology operates within this range, utilizing frequencies between 800 MHz and 3 GHz, while cell tower antennas emit pulsed low frequencies, commonly referred to as microwaves (300 MHz–300 GHz). According to the International Telecommunication Union (ITU), this widespread use of RF-EMFs leads to high concentrations.....

Keywords: RF-EMF, electromagnetic fields, GSM Masts, Mobile base transmitter station, groundnut

[1] Alattar, E., & Radwan, E. (2020). Investigation Of The Effects Of Radio Frequency Water Treatment On Some Characteristics Of Growth In Pepper (≪I≫Capsicum Annuum≪/I≫) Plants. Advances In Bioscience And Biotechnology, 11(02), 22–48. Https://Doi.Org/10.4236/Abb.2020.112003
[2] Amponsah, E., Takyi, S. A., Asibey, M. O., & Amponsah, O. (2022). Achieving Sustainable Cities: Analysis Of The Factors That Influence Compliance With Telecommunication Masts Siting Standards In Ghana. Urban, Planning And Transport Research, 11(1). Https://Doi.Org/10.1080/21650020.2022.2159511
[3] Ayesha, S., Abideen, Z., Haider, G., Zulfiqar, F., El-Keblawy, A., Rasheed, A., Siddique, K. H., Khan, M. B., & Radicetti, E. (2023). Enhancing Sustainable Plant Production And Food Security: Understanding The Mechanisms And Impacts Of Electromagnetic Fields. Plant Stress, 9, 100198. Https://Doi.Org/10.1016/J.Stress.2023.100198
[4] Belli, M., & Indovina, L. (2020). The Response Of Living Organisms To Low Radiation Environment And Its Implications In Radiation Protection. Frontiers In Public Health, 8. Https://Doi.Org/10.3389/Fpubh.2020.601711
[5] Czerwiński, M., Vian, A., Woodcock, B. A., Goliński, P., Virto, L. R., & Januszkiewicz, Ł. (2023d). Do Electromagnetic Fields Used In Telecommunications Affect Wild Plant Species? A Control Impact Study Conducted In The Field. Ecological Indicators, 150, 110267. Https://Doi.Org/10.1016/J.Ecolind.2023.110267

ABSTRACT: The citrate sol-gel auto-combustion method was used in this study to synthesize spinel ferrites, which have the general formula Cu0.7Mg0.3Fe2-xSmxO4 (x=0.000–0.020). X-ray diffraction spectroscopy was used to confirm the development of the cubic spinel phase and structural modifications caused by the substitution of Sm3+. P-XRD spectra show that the range of crystallite sizes is 35.84-34.26 nm. Field emission scanning and transmission electron microscopy were used to study these ferrites' surface morphology and microstructure. Fourier transforms infrared spectra observed that the metal-oxygen (M-O) bonds in Cu-Mg ferrite samples were systematically changed by Sm3+ doping..

Keywords: Sm3+ doped Cu-Mg Ferrites; PXRD; FESEM; FTIR

[1]. E. Ateia, M.A. Ahmed, R.M. Ghouniem, Electrical Properties And Initial Permeability Of Cu–Mg Ferrites, Solid State Sci 31 (2014) 99–106. Https://Doi.Org/10.1016/J.Solidstatesciences.2014.03.002.
[2]. H. Zhang, V. Malik, S. Mallapragada, M. Akinc, Synthesis And Characterization Of Gd-Doped Magnetite Nanoparticles, J Magn Magn Mater 423 (2017) 386–394. Https://Doi.Org/10.1016/J.Jmmm.2016.10.005.
[3]. M.A. Almessiere, S. Güner, H. Gungunes, M. Sertkol, Y. Slimani, R. Badar, S. Akhtar, S.E. Shirsath, A. Baykal, Structural, Magnetic, And Mossbauer Parameters' Evaluation Of Sonochemically Synthesized Rare Earth Er3+And Y3+Ions-Substituted Manganese-Zinc Nanospinel Ferrites, Acs Omega 6 (2021) 22429–22438.
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[4]. A.R. Liandi, A.H. Cahyana, A.J.F. Kusumah, A. Lupitasari, D.N. Alfariza, R. Nuraini, R.W. Sari, F.C. Kusumasari, Recent Trends Of Spinel Ferrites (Mfe2o4: Mn, Co, Ni, Cu, Zn) Applications As An Environmentally Friendly Catalyst In Multicomponent Reactions: A Review, Case Studies In Chemical And Environmental Engineering 7 (2023) 100303.
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[5]. M. Kazemi, Based On Mfe2o4 (M=Co, Cu, And Ni): Magnetically Recoverable Nanocatalysts In Synthesis Of Heterocyclic Structural Scaffolds, Synth Commun 50 (2020) 1899–1935. Https://Doi.Org/10.1080/00397911.2020.1723109.