IOSR-JAP   Volume-17 ~ Issue-1 ~ Jan. – Feb. 2025

ABSTRACT: The Schottky barrier diode formed from FTO substrate and ZnO semiconductor has the potential to be used as a conventional radiology X-ray detector. The addition of magnesium as a semiconductor dopant has been proven to enhance the detector's performance in the mid-range energy X-ray. The improvement is also supported by UV-Vis spectroscopy results, which show an increase in the energy band gap of 0.04 eV. With a firing voltage of 0.17 V, the detector becomes more responsive, and the stability of the current response is also observed.

Keywords: ZnO; magnesium; FTO; schottky barier diode; X-ray; conventional radiology.

[1] M. C. Rao And M. S. Shekhawat, “A Brief Survey On Basic Properties Of Thin Films For Device Application,” Int. J. Mod. Phys. Conf. Ser., Vol. 22, Pp. 576–582, 2013.
[2] S. Chae Et Al., “Stretchable Thin Film Mechanical-Strain-Gated Switches And Logic Gate Functions Based On A Soft Tunneling Barrier,” Adv. Mater., Vol. 33, No. 41, P. E2104769, 2021.
[3] F. L. Forgerini And R. Marchiori, “A Brief Review Of Mathematical Models Of Thin Film Growth And Surfaces. A Possible Route To Avoid Defects In Stents: A Possible Route To Avoid Defects In Stents,” Biomatter, Vol. 4, No. 1, P. E28871, 2014.
[4] M. Ohmukai, T. Nakagawa, And A. Matsumoto, “Zno Films Deposited On Glass By Means Of Dc Sputtering,” J. Mater. Sci. Chem. Eng., Vol. 04, No. 10, Pp. 1–7, 2016.
[5] H.-L. Liang Et Al., “Direct Zno X-Ray Detector With Tunable Sensitivity,” Chin. Physics Lett., Vol. 36, No. 11, P. 110701, 2019.

ABSTRACT: In addition to providing a thorough examination of quadcopter drone, this article presents the results of quick deployment systems. Besides keeping the quadcopter stable for a continuous lift, we added a claw mechanism to our design using a 3D print model. The drone with claw mechanism will provide operators with the freedom to use the drone in a wide variety of tasks including delivering objects or collecting samples from different environments.

Keywords: Quadcopter, drone, microcontrollers, robot

[1] M. R. K. Akanda, "Catalogue Of Potential Magnetic Topological Insulators From Materials Database", Iosr Journal Of Applied Physics (Iosr-Jap) 15 (3), 22-28 (2023)
[2] M. R. K. Akanda, "Scaling Of Voltage Controlled Magnetic Anisotropy Based Skyrmion Memory And Its Neuromorphic Application", Nano Express 10, 2 (2022). Https://Iopscience.Iop.Org/Article/10.1088/2632-959x/Ac6bb5/Pdf
[3] Md. Rakibul Karim Akanda And Roger K. Lake, "Magnetic Properties Of Nbsi2n4, Vsi2n4, And Vsi2p4 Monolayers", Applied Physics Letters 119, 052402 (2021). Https://Doi.Org/10.1063/5.0055878
[4] Md. Rakibul Karim Akanda, In Jun Park, And Roger K. Lake, "Interfacial Dzyaloshinskii-Moriya Interaction Of Antiferromagnetic Materials", Phys. Rev. B 102, 224414 (2020). Https://Journals.Aps.Org/Prb/Abstract/10.1103/Physrevb.102.224414
[5] M. R. K. Akanda, "Catalog Of Magnetic Topological Semimetals", Aip Advances 10, 095222 (2020).
Https://Doi.Org/10.1063/5.0020096

ABSTRACT: The study of binary liquid alloys and the therapies that go with them opens up an interesting world in the areas of materials science, chemistry, and industrial applications. These materials are the key to enhancing mechanical characteristics, thermal performance, and sustainability in a number of sectors. They are generated by the molecular-level interactions between different components. Within the field of metallurgy, binary liquid alloys are essential for enhancing the mechanical and thermal properties of materials, rendering them fit for use in high-stress environments such as the aerospace and auto sectors. In an increasingly energy-dependent world, their remarkable ability..........

[1] Ovchinnikov, A., Smetana, V., & Mudring, A. V. (2020). Metallic Alloys At The Edge Of Complexity: Structural Aspects, Chemical Bonding And Physical Properties. Journal Of Physics: Condensed Matter, 32(24), 243002.
[2] Skripnyak, N. V., Ponomareva, A. V., Belov, M. P., Syutkin, E. A., Khvan, A. V., Dinsdale, A. T., & Abrikosov, 1. A. (2020), Mixing Enthalpies Of Alloys With Dynamical Instability: Bec Ti V System. Acta Materialia, 188, 145-154.Π
[3] Yu, D., Xue. Z., & Mu. T. (2021). Eutectics: Formation, Properties, And Applications. Chemical Society Reviews, 50(15), 8596-8638.
[4] Hart, G. L., Mueller, T., Toher. C., & Curtarolo, S. (2021). Machine Learning For Alloys. Nature Reviews Materials, 6(8), 730-755..

ABSTRACT: At regular intervals, the atmospheric air that supports life on Earth is often polluted through several sources. In our contemporary society, there are great concerns about the high levels of atmospheric air pollution due to the PM2.5 generated, particularly at various rice processing sites, and are circulated in the lower atmosphere (troposphere), where life is supported. After being harvested, Abakaliki rice normally undergoes numerous processing cycles to make it.........

Keywords: Atmosphere, PM2.5, air pollution, Abakaliki rice, processing sites.

[1] Analysis Of Pm2.5 Related Health Burdens Under Current And Alternative Naaqs. Industrial Economics,
[2] Incorporated (Iec) 2067 Massachusetts Avenue. Cambridge, Ma 02140, 617/354-0074. Final Report April 15, 2022.
[3] Brown, M.J. (2009). The Health Effects Of Pm10 Air Pollution In Reefton, South Island New Zealand.
[4] University Of Canterbury.
[5] Dogara, A. M. And Jumare, A. I. (2014).. Origin , Distribution And Heading Date In Cultivated.

ABSTRACT: The superstring theory is presented as one of the most advanced theories in physics that attempts to unify all four fundamental forces of nature into one single theory. Mathematical models in super-string theory due to their geometric nature describe spacetime as a multi-dimensional space in which strings can move. This allows to explain many properties of space-time, such as black-hole solution. Using the black-hole solution of general relativity, Kerr solutions, we received the Bekenstein-Hawking entropy, which can be generalized to spacetimes with dimension D. Analysis of the mechanism by which the black hole has entropy makes it possible to carry out calculations of such topological invariants as Lifschitz number and Euler characteristic of a black hole, represented as a multidimensional cubic space.

Keyword: Black hole, Hawking radiation, theory of dynamical systems, the Lifschitz number and Euler characteristic of a black hole, multidimensional cubic space, topological entropy

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[4]. L. Susskind. Three Lectures On Complexity And Black Holes. Springerbriefs In Physics. 2020, 93p.
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