https://journals.wingsofaero.in/index.php/tems/issue/feed T.E.M.S Journal [Technology Engineering Maths Science] 2021-06-24T06:41:27+00:00 PON MAA KISHAN A ponmaakishan@wingsofaero.in Open Journal Systems <p class="western" align="justify">T.E.M.S Journal [Formerly Journal of Mechanical and Aeronautical Engineering Research (JMAER)] (Online ISSN:2456-8368) is an international open access journal under WINGS OF AERO publications indexed with google scholar, which has been engaged in publication of technology, engineering, maths and science related research articles for academic and economic development of the society with special emphasis on integrating industry and institutes. The Journal T.E.M.S is devoted to the publication of original research articles on various aspects of technology, engineering, maths and science including the scientific leads.</p> https://journals.wingsofaero.in/index.php/tems/article/view/23 Low speed wind tunnel design configuration without formula 2020-09-10T17:57:29+00:00 Ajit Kumar Chetry ajitadhikari125@gmail.com <p>Subsonic wind tunnel is a type of wind tunnel where speed (inside test section) range less than 0.3 Mach. The wind tunnel we have is a very low speed, open circuit, suction type with square cross-section. Its flow velocity is about 0.03 Mach (i.e. about 10m/s) and this is because of fan limit (we have used 9 inch, 2-blade type propeller with a Brushless DC motor). It is entirely made from stainless steel sheet (1/2mm thick). Sections are joined through rivet joints. Theoretically, our critical laminar flow speed is approximately 0.12m/s. Its total length is 1.9m.</p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/91 Davisson-Germer Experiment 2021-06-23T09:37:29+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about the experiment which provided the first evidence of matter waves. In 1927 Davidson and Germer provided the first experimental evidence of matter waves through diffraction of slow electrons, the associated de Broglie wavelength of which is of the order of atomic spacings of most of the crystalline solids. Thus the atoms of a crystal can serve as a three dimensional array of diffracting centers for the de Broglie matter waves.</p> 2021-06-23T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/69 Lorentz transformation 2021-06-07T06:41:27+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">Einstein in 1905, after a thorough analysis of facts and after the failure of aether theory, proposed the special theory of relativity. It has two postulates.</span></span></span></p> 2021-06-05T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/89 Hawkin's Radiation 2021-06-22T06:12:12+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about Hawkins radiation, originally predicted by Stephen hawking in 1974. </span></span></span></p> 2021-06-22T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/66 Entropy: The thermodynamical arrow of time 2021-06-04T12:29:19+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about how the concept of entropy and thermodynamical arrow of time comes from 2nd law of thermodynamics.</span></span></span></p> 2021-06-03T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/87 Planck's Length 2021-06-19T07:23:02+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;">This article is about Planck's length, proposed by Max Planck as a unit of length along with other Planck unit. </span></span><span style="font-size: medium; font-family: Times, 'Times New Roman', serif;">In 1899, Max Planck proposed that there should be some fundamental units of length, time, mass and energy. Turns out, that this Planck's unit can be found from different combinations of speed of light, Gravitational constant and Planck's constant. Planck derived them using dimensional analysis. Planck's length is given by,</span></p> 2021-06-19T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/64 Michelson – Morley experiment and Aether theory 2021-06-04T11:43:46+00:00 Promita Ghosh promitaghosh2570@gmail.com <p lang="en-US" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about the famous experiment which disproved the existence of aether.</span></span></span></span></p> 2021-06-01T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/84 White dwarfs and the Mass-Radius Relationship Observation 2021-06-17T08:59:27+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about White dwarfs, their mass and radiation relation and the recent methods developed to observe those phase of the white dwarfs by scientists of Johns Hopkins university.</span></span></span></p> 2021-06-17T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/62 Review of Defence LTE Solutions 2021-03-20T11:47:51+00:00 Aravinth R aravinth@wingsofaero.in <p>This article is about Defence LTE Solutions. It is developed by Thales.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/82 STERN-GERLACH EXPERIMENT 2021-06-16T08:29:55+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>Stern-Gerlach experiment is a clear demonstration of space quantization of angular momentum of the electron and the electrons spin. The aim of this experiment was true Prove the Bohr-Sommer field theory, that the direction of angular momentum of a silver atom is quantised, but experiment give some unpredicted result which was in agreement with the hypothesis of spin that was given later. It is a very celebrated experiment conducted by the German scientists in 1922.</p> 2021-06-16T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/60 Review of Global 6500 Business Jet 2021-03-19T12:00:04+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Global 6500 Business Jet. It is manufactured by Bombardier.</p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/79 Interpretation of Quantum Theories 2021-06-14T06:56:24+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about the different interpretations<br>of the quantum theory in details namely<br>Copenhagen interpretation, hidden variable theory,<br>many world interpretation, Spontaneous collapse.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/58 Review of McX 2021-03-11T11:19:25+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about McX. It is developed by Crane Aerospace and Electronics.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/77 Co-existence of Superconductivity and Ferro-Magnetism 2021-06-11T05:48:17+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about coexistence of superconductivity and ferro-magnetism. Theoretically it was believed that coexistence of superconductivity and ferro-magnetism is not possible due to Meissner effect, but recently many compounds are found where superconductivity and ferro-magnetism co exists.</p> 2021-06-11T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/55 Review of Avangard 2021-03-02T11:23:01+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Avangard. It is developed by Russia.</p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/74 Double slit Experiment with Electrons 2021-06-09T10:04:39+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about the famous double silt experiment on electrons which sparked up many among the prominent scientists about the interpretation of the result of the interpretation.</p> 2021-06-09T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/24 Manometer and its amplification techniques 2020-09-10T18:56:11+00:00 Ajit Kumar Chetry ajitadhikari125@gmail.com <p>Manometer is one of the most important instrument to measure pressure or pressure difference. This pressure difference is than calibrated to give various other quantity including velocity. If we look at the physics of a simple manometer than its fundamental principle is the hydrostatic law which relates the pressure at a given point with the difference in level of the fluid. If density and gravity are assumed to be constant than there is no way we can magnify the vertical level of fluid for a given pressure as per hydrostatic law (Δp=ρgΔh). Hence we search for other indirect method to magnify the readings to increase the sensitivity of the instruments. Here I present four different ways we can apply to amplify the reading to increase its sensitivity.</p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/92 Breakthrough in Structural Mystery of Glass 2021-06-24T06:41:27+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about the structural mystery of glass and other amorphous solids in general which is solved by the team of physlead by prof. Wang of city university of Hong Kong.</span></span></span></p> 2021-06-24T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/71 Andrews' Experiment and Real Gas 2021-06-08T04:40:30+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about Andrews's enhaustiveexperiment on the isotherm of carbon dioxide gasand formed the experimental base of real gas.</p> 2021-06-08T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/90 Gluons and Gluons Exchange Models 2021-06-23T09:34:10+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about quarks and gluons and a quick look into gluon exchange model by the scientists from institute of nuclear physics of Polish Academy in Cracow</p> 2021-06-23T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/68 Compton Effect 2021-06-07T06:11:46+00:00 Promita Ghosh promitaghosh2570@gmail.com <p align="justify"><span style="font-family: Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about the mechanisms of Compton scattering.</span></span></span></p> 2021-06-04T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/88 Quantum Gravity 2021-06-22T06:06:52+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about quantum gravity and briefly explanation of the two important and contracting theories of quantum gravity that is M- theory and loop quantum gravity</p> 2021-06-22T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/65 Photo-Electric Effect 2021-06-04T12:14:13+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article describes the mechanisms of photoelectric effect.</p> 2021-06-02T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/86 Bohr's Model of Hydrogen Atom 2021-06-18T11:31:31+00:00 Promita Ghosh promitaghosh2570@gmail.com <p align="justify"><span style="font-size: xx-small;"><span style="font-size: medium;"><span lang="en-US"> This article is about the atomic model put forward by Bohr which retains the essential features of Rutherford while using the quantum ideas of Planck and Einstein.</span></span></span></p> 2021-06-18T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/63 Review of Mission System for Air Launched Effects 2021-03-20T11:47:50+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Mission System for Air Launched Effects. It is developed by Collins Aerospace.</p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/83 Blackbody Radiation 2021-06-16T08:35:38+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about the spectral distribution of blackbody radiation.</p> 2021-06-16T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/61 Review of Ground Fire Radar 2021-03-20T11:36:32+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Ground Fire Radar. It is developed by Thales.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/80 TIME DILATION 2021-06-14T07:03:13+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;">This article is about relativistic time dilation as proposed by Albert Einstein in his special theory of relativity.</span></span></p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/59 Review of SPECTRO XR 2021-03-19T11:49:03+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about SPECTRO<sup>TM</sup> XR. It is developed by Elbit Systems.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/78 Polarisation of light 2021-06-12T07:01:01+00:00 Promita Ghosh promitaghosh2570@gmail.com <p class="western" lang="en-AU" align="justify"><span style="font-family: Times, Times New Roman, serif;"><span style="font-size: medium;"><span lang="en-US">This article is about polarisation. It was first observed by Erasmus Bartholinus in 1669.</span></span></span></p> 2021-06-12T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/57 Review of Integrated Digital Vision System 2021-03-10T11:38:30+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Integrated Digital Vision System. It is developed by Collins Aerospace.</p> 2021-06-14T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/76 Physics of Auroral Emissions 2021-06-10T11:21:19+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about formation of aurora after electrons gets accelerated in the last part of their journey by alfvèn waves. The recently done experiment shows that there is a clear casual relationship between alfvèn waves and acceleration between Alfvèn waves and accelerated waves that directly effect auroral emissions.</p> 2021-06-10T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/54 Review of Hypersonic Technology Demonstrator Vehicle 2021-03-02T11:09:18+00:00 Rajesh G rajesh.g@wingsofaero.in <p>This article is about Hypersonic Technology Demonstrator Vehicle. It is developed by DRDO.</p> 2021-06-15T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO https://journals.wingsofaero.in/index.php/tems/article/view/72 Phase and Group Velocity of Matter Waves 2021-06-09T09:38:53+00:00 Promita Ghosh promitaghosh2570@gmail.com <p>This article is about the phase velocity andgroup velocity of a matter wave and why particlewas started to getting associated with wave packet.</p> 2021-06-09T00:00:00+00:00 Copyright (c) 2021 WINGS OF AERO