Harmonic Waves Propagation in a Nonlinear Generalized Thermoelasticity with Magnetic Field | Chapter 9 | Mathematics and Computer Science: Contemporary Developments Vol. 1

 

In this chapter, the homotopy perturbation and Adomain's decomposition methods are applied to obtain the approximate solutions of the equation of motion and heat equation for the harmonic waves propagation in a nonlinear generalized thermoelasticity with magnetic field. The nonlinear coupled system of partial differential equations often appear in the study of circled fuel reactor, high-temperature hydrodynamics and thermo-elasticity problems. The problem is solved in one-dimensional elastic half-space model subjected initially to a prescribed harmonic displacement and the temperature of the medium. The displacement and temperature are calculated for the two methods with the variations of the magnetic field and the relaxation times considering Green Lindsay theory (GL). The results obtained are displayed graphically to show the in uences of the new parameters and the differs between the methods technique. It is obvious that the homotopy perturbation method and adomain decomposition method give the same results that indicates to the origin of the approximate solutions and the methods powerful. The homotopy perturbation method and adomain decomposition method give the same results that indicates to the origin of the approximate solutions and the methods powerful.

 

 

 

Author(s) Details

S. M. Abo-Dahab
Mathematics Department, Faculty of Science, South Valley University, Qena 83523, Egypt.

Khaled A. Gepreel
Department of Math, Faculty of Science, Taif University, Saudi Arabia and Department of Math, Faculty of Science, Zagazig University, Egypt.

 

Please see the book here:- https://doi.org/10.9734/bpi/mcscd/v1/1034

Convectional Onset in Ferrofluid Layer Through a Darcy-brinkman Porous Medium | Chapter 3 | Physical Science: New Insights and Developments Vol. 2a

 

This chapter considers the analysis of the instabilities of convection through a porous medium in a layer of incompressible ferrofluid when the layer is subjected to a uniform magnetic field along with an external heat source. The Darcy-Brinkman model is used to study porous media. The perturbation method is used in combination with the normal mode method to analyse the influence of various integrated factors involved in the stability/instability of the considered system. The case of exponential variation in stratification is considered, and the dependence of the growth rate on the kinematic viscosity, medium porosity, medium permeability, heat source, Darcy-Brinkman number, and Alfvén squared velocity is also analytically demonstrated. The cases of stable stratification and unstable stratification are also analysed to determine the stabilisation as well as destabilisation effects of the system under certain constraints.

 

 

Author(s) Details

Rajan Singh
Department of Mathematics, School of Sciences, IFTM University, Moradabad-244102, India.

 

Nidhi Tiwari
Department of Mathematics, School of Sciences, IFTM University, Moradabad-244102, India.

 

B.K. Singh
Department of Mathematics, School of Sciences, IFTM University, Moradabad-244102, India.

 

Atanu Nag
Department of Physics, School of Sciences, IFTM University, Moradabad-244102, India.

 

Anshul Dubey
Department of Mathematics, School of Sciences, IFTM University, Moradabad-244102, India.

 

 

Please see the book here:- https://doi.org/10.9734/bpi/psniad/v2/5992

 

Study on the Novel Technologies for Design and Analysis of Switching Mode Power-Supply Circuit (SMPC) Based on Solitary Electromagnetic Wave Theory | Chapter 5 | Current Approaches in Engineering Research and Technology Vol. 7

 

The novel solitary electromagnetic wave (SEMW) theory and the design methodologies of the switching mode power-supply circuit (SMPC) are presented. The novel SEMW theory which was developed by fusing semiconductor physics, nonlinear undulation physics, and electromagnetic wave (EMW) physics is the basic theory of the circuit design of all kinds of switching mode circuits (SMC) including SMPC. When the SEMW theory is used, the electromagnetic analysis of SMPC becomes possible by using only parameters that are in accordance with the physics without using the equivalent circuit which is formed by the arbitrary idea. The low impedance lossy line (LILL) and the matched impedance lossy line (MILL) are also presented. They are the typical technologies that were developed based on the SEMW theory. LILL is effective for suppressing the electromagnetic noise and the spike on the unregulated DC line (UDCL) and the regulated DC line (RDCL) on SMPC, and an ideal DC source is provided to the switching device by it at a short distance. The MILL is effective for suppressing the electromagnetic noise and the spike on the switching DC line (SDCL) on SMPC. SMPC can be reconfigured to the quasi-stationary state closed circuit (QSCC) by applying LILL and MILL. LILL and MILL will provide the boundary condition for the electromagnetic analysis of SMC. The buck converter which is one of the most popular DC-DC converters is presented as an example of the method for being reconfigured to QSCC. Normally, the electromagnetic effect and the inductive element of the wire can be ignored on QSCC. When the accurate analysis of the transmission delay of the wire is necessary, the easy method using the element of the capacitance and the resistance can be applied like a design method of on-chip interconnect. As a result, it can say that the conventional AC circuit theory and the circuit simulator such as SPICE were the effective methods of being utilizable on QSCC because the switching time of the device was quite long at this time when these theories and the tools were developed. The state space averaging method for the analysis of the stability control of SMPS will become more reliable when SMPS is reconfigured to QSCC.

 

Author(s) Details

Hirokazu Tohya
ICAST, Inc., 1-26-11 Kinugaoka, Hachioji City, Tokyo, 192-0912, Japan.

 

Please see the book here:- https://doi.org/10.9734/bpi/caert/v7/1239

Analysis of MHD on Convective Mass Transfer in Annular Flow: Catheter-Based Drug Delivery Systems | Chapter 6 | Mathematics and Computer Science: Contemporary Developments Vol. 10

A catheter is a tube that can be inserted into a body cavity, duct, or vessel. It is a thin, flexible tube. A catheter left inside the body either temporarily or permanently is referred to as an indwelling catheter. In the present study, convective diffusive mass transfer is considered, along with the effects of particle drag under the influence of a magnetic field concerning drug delivery in the presence of the catheter. A concentric annular region is created by the presence of a catheter, and the effects of which on mass transfer are considered. A model of the hydrodynamics of the fluid, blood flow, and convective diffusive mass transfer of the species is presented. Here, an attempt is made to analyze a drug delivery method for delivering a drug to a specific site in the body and for this analysis, considered a channel bounded by the tissue region where the drug is targeted. The magnetic field induces pulsatile flow, which affects the mass transfer. The graphs predict that the mass transfer increases from the lumen region to the tissue region. Peclet number and magnetic parameter are the parameters that significantly affect carrying drugs towards the tissue. The results are well agreed with the physical phenomena of the problem as well as many biomedical applications. The study concluded that the diffusion coefficient increases with an increase in permeability due to enhancement in convection of fluid towards the wall thereby increasing absorption. Peclet number and magnetic field influence diffusion significantly. The effect of an increase in a magnetic field is to create pulsatile motion.

 

Author (s) Details

 

Punith Kumar Deshapande
Department of Mathematics, SoAS, REVA University, Bangalore-560064, Karnataka, India.

 

Indira Rama Rao
Department of Mathematics, Nitte Meenakshi Institute of Technology, Bangalore-560064, Karnataka, India.

 

Sravan Kumar Thavada
Department of Mathematics, SoAS, REVA University, Bangalore-560064, Karnataka, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/mcscd/v10/2890

Peristaltic Flow of Magnetically Active Couple-stress Fluid in an Asymmetric Channel with Effect of Heat and Mass Transfer | Chapter 8 | Scientific Research, New Technologies and Applications Vol. 9

 

The peristaltic flow of a couple stress fluid in an asymmetric channel is considered under the effect of the magnetic field.  Viscosity is temperature dependent due to which the energy equation gets coupled with Navier Stokes equation.  Viscosity is considered as a linear function of temperature θ. The regular perturbation technique is adopted with αbeing the perturbation parameter. The coupled equations are uncoupled and approximate solutions for stream function, temperature and concentration are obtained. The solution is derived for the cases with and without the effect of the magnetic field. The stream function, temperature and concentration are numerically evaluated and graphically depicted.  All the graphs show one or two invariant points where the effect of each parameter is the same.  The behaviour to the left and right of this point is the opposite.  The invariant point is approximately at y =0.5.  The effect of couple stresses is to increase temperature up to the invariant point and then decrease beyond y = 0.5.  As couple stresses decrease, velocity decreases.

 

Author (s) Details

 

Sreegowrav Konduru Ravikumar
Department of Mathematics, School of Applied Sciences, REVA University, Bengaluru, Karnataka, 560064, India.

 

Indira Ramarao
Department of Mathematics, Nitte Meenakshi institute of Technology, Bengaluru, Karnataka, 560064, India.

 

Dinesh Pobbathy Aswathanarayanasetty
Department of Mathematics, M S Ramaiah institute of Technology, Bengaluru, Karnataka, 560054, India.

 

Gayathri Makam Swaminathan
Department of Mathematics, B M S College of Engineering, Bengaluru, Karnataka, 560019, India.

 

Please see the book here:- https://doi.org/10.9734/bpi/srnta/v9/2892

Extraction of Microwave Properties Using a Single Transmission Line: Application to Carbon Nanopowders Decorated with Magnetic Nanoparticles | Chapter 1 | Fundamental Research and Application of Physical Science Vol. 6

 The cook properties of element-based nanopowders, whether or not they are painted with drawing nanoparticles, are characterized using a singular approach in this phase. The microwave characterization of matters is of prime interest for several uses. Dielectric constant, electrical generated power, and complex magnetic permeability, that are its microwave features, are derived from tests accompanying a single broadcast line acting as the test cell. Successful tests were administered on two different broadcast line geometries. A phenomenological model is used to evaluate the measurement dossier and fit the conductivity and dielectric continual measurements, giving intuitiveness into the powder sample's compacity quality. Additionally, the finding of a ferromagnetic resonance with a uninterrupted dependence on the extrinsic DC magnetic field supports the extraction of the permeability.

Author(s) Details:

Francisco Mederos-Henry,
Royal Institute for Cultural Heritage (KIK-IRPA), Parc du Cinquantenaire 1, 1000 Brussels, Belgium and Université Libre de Bruxelles, Centre de Recherches en Archéologie et Patrimoine (CReAPatrimoine), Square Jean Servais, 1050 Brussels, Belgium.

Sophie Hermans,
Université Catholique de Louvain, IMCN Institute, MOST Division, Place Louis Pasteur 1, 1348 Louvain-la-Neuve, Belgium.

Isabelle Huynen,
Université Catholique de Louvain, ICTEAM Institute, ELEN Division, Place du Levant 3, 1348 Louvain-la-Neuve, Belgium.

Please see the link here: https://stm.bookpi.org/FRAPS-V6/article/view/10827

Impact of Thermal Radiation and Buoyancy Forces on MHD Fluid Flow with Heat and Mass Transfer over a Permeable Stretching Sheet | Chapter 7 | Current Overview on Science and Technology Research Vol. 7

 This item engages the mathematical approach to examine the impact of heat that radiates and Buoyancy belongings of the nonlinear MHD fluid flow accompanying heat and bulk transfer characteristics of an firm, sticky, electrically attending and Boussinesq fluid ahead a absorbent vertical elongated coating. A magnetic field of currents is used across to the direction of the flow. The fundamental equatings commanding flow, heat transfer, and aggregation are decreased to a set of nonlinear ordinary characteristic equatings through likeness metamorphosis. Quasi-linearization is used to first linearize the nonlinear common differential equatings before they are numerically answered utilizing an inherent limited difference procedure. The Gauss-Seidal repetitive means is before used to solve bureaucracy of concerning manipulation of numbers equatings. Graphical likenesses are used to show the influence of material parameters on the speed, hotness, and aggregation characterizations. Drawing speed, temperature, and aggregation characterizations for differing ruling factors tells that the life of resilience belongings, heat that radiates, and magnetic field considerably influences the flow field.

Author(s) Details:

J. Venkata Madhu,
Department of Science and Humanities, Sreenidhi Institute of Science and Technology, Ghatkesar, Hyderabad-501301, Telangana State, India.

Please see the link here: https://stm.bookpi.org/COSTR-V7/article/view/8509

Determination of Faraday Effect on Optical Properties for Polymers Blend Doping Metal Nanoparticles: A Descriptive Study | Chapter 9| New Trends in Physical Science Research Vol.7

 

 This study uses a magnetic field to highlight the Faraday effect, which is evident in the findings. Without a magnetic field, it seems that the absorptance is directly proportional to the concentration, but the other optical characteristics are discovered to be inversely proportional. Metal nanoparticles (NPs) and ferromagnetic (FM) polymers have importance in nanostructures because many electro-optic systems are based on the faraday effect.

Author(s) Details:

Zaid A. Hasan,
Department of Physics, College of Education for Pure Sciences, University of Babylon, Iraq.

Please see the link here: https://stm.bookpi.org/NTPSR-V7/article/view/7785  

Bohm Criterion in the Presence of a Magnetic Field: A Descriptive Approach | Chapter 6 | New Trends in Physical Science Research Vol.5

 The plasma column is described in detail in this study, including the diamagnetic effect caused by azimuthal electron currents. However, the main finding is that the Bohm condition is met in this scenario. dn/dɸ is the amount.At the plasma border, the Boltzmann value approaches.This research is intriguing since the Boltzmann relation for electron density is not assumed. It's worth noting that Bohm came up with the criterion by applying the Boltzmann equation for electron density. However, the main goal of this research was to see if the Bohm criteria was still valid in the presence of a magnetic field. The electron density was not considered to be determined by the Boltzmann relation. Bohm established this assumption in his formulation of the criteria for sheath development. Consider the ion and electron densities plotted versus potential for both the plasma and sheath areas to obtain some information. It appears that the outcome is universal and may be applied to various circumstances.

Author(s) Details:

J. E. Allen,
Imperial College, London, SW7 2BW, UK and University College, Oxford, OX1 4BH, UK and OCIAM, Mathematical Institute, Oxford, OX2 6GG, UK.

J. T. Holgate,
Imperial College, London, SW7 2BW, UK.

Please see the link here: https://stm.bookpi.org/NTPSR-V5/article/view/7162

Determination of Structural Changes in Water and in Aqueous Solutions under External Influences | Chapter 03 | Innovations in Science and Technology Vol. 2

 The proposes a novel approach to the development of cement compositions based on technologies that meet technological accessibility and efficiency, environmental safety, sustainability, biocompatibility, economics, energy efficiency, and resource conservation requirements. This innovative method is based on evaluating electrical characteristics in the frequency range of 1 kHz to 3000 kHz using various measuring cells to examine changes in the structure of water or aqueous electrolyte solutions under diverse influences. There were three different types of measurement cells employed. In the first case, the measuring cell had a different height of liquid layer between the capacitor plates; in the second case, a rectangular measuring cell with a distance between the capacitor plates of 7 cm was used; and in the third case, the measuring cell was a test tube with a diameter of 20 mm and a length of 200 mm, in which the capacitor plates are located relative to each other in parallel planes and do not have surfaces located opposite each other. Based on the findings, it was discovered that a change in the structure of water is the fundamental mechanism of action of a magnetic field, temperature, chemical additives, ultraviolet irradiation, or a combination of these factors on water and water-containing systems. New approaches for enhancing the strength of cement compositions were developed using the defined criteria for examining the structure of water and water-containing systems. The addition of various compounds and/or field effects on cement systems resulted in a considerable increase in the strength of hardened cement paste and concretes, according to the findings. This allowed the cement-sand mortar's compressive strength to be increased by 30-45 percent.

Author(S) Details

N. P. Gorlenko
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

G. N. Sidorenko
Nove Tehnologije d.o.o., Ljubljana, Slovenija, Russia.

B. I. Laptev
Nove Tehnologije d.o.o., Ljubljana, Slovenija, Russia.

Yu. S. Sarkisov
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

N. I. Imanaliev
Tomsk State University of Architecture and Building, Tomsk, 634003, Russia.

View Book:- https://stm.bookpi.org/IST-V2/article/view/5423

Study on the Effects Generated by Screening of large-Scale Inhomogeneity’s by an Electron Liquid in Metals | Chapter 4 | Research Trends and Challenges in Physical Science Vol. 5

 A homogenous, positively charged background is considered, as well as an electron liquid covering the same volume with the same average charge density. This paper investigates how an e-liquid reacts to large-scale inhomogeneities caused by exogenous factors. The electron liquid screens the inhomogeneity, changing it into an exponential potential at the boundary, using two inhomogeneities as examples: the outer boundary of a positive background and a uniform magnetic field throughout the volume. The average charge density determines the exponential parameter, which is substantially less than the sample size. Some aspects of the exponential well's energy spectrum are demonstrated. This allowed the rules of the photoelectric effect to be explained, as well as the energy dependence of the density of states of elementary excitations of an electron liquid in a magnetic field. The phenomena in the ionic lattice should be affected by the electric field formed by the electron liquid's inhomogeneous density distribution.

Author(S) Details

Illia Dubrovskyi
Hatikva 11a apt 2 Haifa 3541623 Israel.

View Book:- https://stm.bookpi.org/RTCPS-V5/article/view/4952

Complex Physical Prevention and Rehabilitation of Cervical Myofascial Pain and Headache, Due to Spine Malposition in Users (Abusers) of Smart Phones | Chapter 10 | Highlights on Medicine and Medical Research Vol. 12

 Introduction: The introduction of portable gadgets into everyday life necessitated an assessment of the potential implications (of misuse) on the spine and central nervous system, as well as the development of programmes to prevent these consequences. The purpose of this study is to assess the influence of various physical modalities (such as physiotherapy, ergotherapy, and massage therapy). In the prevention and complex rehabilitation of the beginning of cervical myofascial pain and headache owing to spinal malposition in users (abusers) of smart phones, manual therapy, deep oscillation, lasertherapy, and magnetic field were used. Methods and Materials: A total of 165 patients with cervical myofascial pain and headache were observed and placed into five groups (of 33 patients each). The patients ranged in age from 19 to 50 years old, with cervical spine posture (position) changes but no major cervical disease. For at least 6 months, all patients used a mobile device in their daily activities (at least 2 hours per day). a month after the recovery is completed We used a complex physical-therapeutic programme (PT) in all of the patients, which included analytic exercises for paravertebral muscles and soft tissue techniques [massages, post-isometric relaxation (PIR) for the respective upper trapezius and sterno-cleidomastoideus muscles] as well as encouraging patients' active participation in the prevention process (education in principles of back-school, self-massage, auto-PIR). The first group of patients Only these procedures were carried out. We included manual treatment elements in the second group (MT - tractions, mobilizations, manipulations; and auto-mobilizations). A paravertebral application of a prepared modality was added to the PT and the MT in patients in the following groups: group 3 – Deep Oscillation (DO); group 4 – lasertherapy (LT); group 5 – magnetic field (MF). The statistical analysis was carried out with the SPSS programme, version 17, and the t-test (analysis of variances ANOVA) and Wilcoxon rank test were used (non-parametrical correlation analysis). All patients reported a considerable reduction in the severity of their neck discomfort and headaches (evaluated by Visual analogue scale of pain and by pressure dolorimetry). The static position of the cervical spine was improved in all patients, as was the amount of paravertebral muscle spasm and the sensitivity of trigger and tender points, as well as the range of active motion of the cervical region of the spine. The second group (with manual treatment) had the best results during the recovery period, but there were no statistical differences between the two groups one month afterwards. Conclusion and Discussion: PT and MT techniques are extremely beneficial in the prevention and rehabilitation of cervical myofascial pain and headache. Active (analytic) exercises, PIR and stretching techniques, tractions and mobilizations, patient education, and (in some situations) manipulations are all part of the treatment plan. The use of prefabricated modalities (DO, LT, MF) in a sophisticated preventative and rehabilitation programme promotes pain relief and spine mobility. as well as improving the results' stability. Every medical practitioner who specialises in physical and rehabilitation medicine, as well as every physiotherapist and ergotherapist, must, in our opinion, modify the basic algorithm to the specific demands of the patient.

Author (s) Details

Ivet B. Koleva
Medical University of Sofia, Bulgaria

Radoslav D. Yoshinov
Bulgarian Academy of Sciences, Laboratory of Telematics – Sofia, Bulgaria.

Mr. Borislav R. Yoshinov
Medical Faculty of Sofia University, Bulgaria.

View Book : - https://stm.bookpi.org/HMMR-V12/article/view/1372

Review on the Actively-Controlled Colloidal Dampers and Investigations on a Colloidal Damper Rendered Controllable under the Variable Magnetic Field Generated by Moving Permanent Magnets| Chapter 10 | Newest Updates in Physical Science Research Vol. 7

 Following a study of the operating principle of a colloidal damper rendered controllable (CDRC), this Chapter presents a review of different types of controlling devices and their sensitivity. The controllability of a new form of colloidal absorber, rendered controllable under varying magnetic fields, is then experimentally tested. This absorber is made up of a water-based ferrofluid (FERROTEC MSG-W10) and a liquid-repellent nanoporous solid body made up of gamma alumina and/or silica gel particles. Permanent neodymium annular magnets are positioned either on the piston head (axial magnetic field) or on the exterior surface of the cylinder to control the dynamic properties (radial magnetic field). The quantity of the displaced liquid by the magnets through the damper's filter and through the nanoporous solid body was estimated after flow visualisations inside a transparent model damper were done. The fluctuation of the magnetic flux density at the magnet surface with the magnet's height and versus the target distance was measured experimentally. The appropriate magnet geometry was chosen based on this information. The trial colloidal damper's three-dimensional structural model, created with Solidworks, and the excitation test rig are then shown. Excitation studies on a ball-screw shaker revealed that the proposed absorber had greater damping capacities than a standard colloidal damper, as well as the ability to modify the damping coefficient depending on the excitation type.

Author(s) Details

Barenten Suciu
Department of Intelligent Mechanical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, 3-30-1 Wajiro-Higashi, Higashi-ku, Fukuoka-shi, Fukuoka 811-0295 Japan.

View Book :- https://stm.bookpi.org/NUPSR-V7/article/view/1297

Review on the Actively-Controlled Colloidal Dampers and Investigations on a Colloidal Damper Rendered Controllable under the Variable Magnetic Field Generated by Moving Permanent Magnets| Chapter 10 | Newest Updates in Physical Science Research Vol. 7

 Following a study of the operating principle of a colloidal damper rendered controllable (CDRC), this Chapter presents a review of different types of controlling devices and their sensitivity. The controllability of a new form of colloidal absorber, rendered controllable under varying magnetic fields, is then experimentally tested. This absorber is made up of a water-based ferrofluid (FERROTEC MSG-W10) and a liquid-repellent nanoporous solid body made up of gamma alumina and/or silica gel particles. Permanent neodymium annular magnets are positioned either on the piston head (axial magnetic field) or on the exterior surface of the cylinder to control the dynamic properties (radial magnetic field). The quantity of the displaced liquid by the magnets through the damper's filter and through the nanoporous solid body was estimated after flow visualisations inside a transparent model damper were done. The fluctuation of the magnetic flux density at the magnet surface with the magnet's height and versus the target distance was measured experimentally. The appropriate magnet geometry was chosen based on this information. The trial colloidal damper's three-dimensional structural model, created with Solidworks, and the excitation test rig are then shown. Excitation studies on a ball-screw shaker revealed that the proposed absorber had greater damping capacities than a standard colloidal damper, as well as the ability to modify the damping coefficient depending on the excitation type.

Author(s) Details

Barenten Suciu
Department of Intelligent Mechanical Engineering, Faculty of Engineering, Fukuoka Institute of Technology, 3-30-1 Wajiro-Higashi, Higashi-ku, Fukuoka-shi, Fukuoka 811-0295 Japan.

View Book :- https://stm.bookpi.org/NUPSR-V7/article/view/1297

Diamagnetic Susceptibility of a Magneto-Donor in GaAs Spherical and Cylindrical Quantum Dot | Chapter 7 | Advanced Aspects of Engineering Research Vol. 2

The type effect is theoretically studied in the presence of a magnetic field on the binding energy and diamagnetic resistance of a shallow donor restricted to moving in Quantum Dots'QD '. Magnetic field effects are predominant for higher field intensity and large dots. The numerical calculations, using a variational method, are carried out in the effective mass approximation. We define an infinite deep potential as the result of quantum containment. For the Spherical Quantum Dot 'SQD' and Cylindrical Quantum Dot 'CQD', the shape effect is investigated. The findings for these two types of structures show that, with the magnetic field, the diamagnetic susceptibility and the binding energy increase. For larger dots, there are more pronounced ones. We note that the binding energy and diamagnetic susceptibility are decreasing functions of the quantum dot dimension for a zero magnetic field, according to theoretical literature findings. We hope this study will encourage further experimental interest in quantum dot structures on donors.

Author (s) Details

S. Janati. Edrissi
Groupe des Nanomatériaux et Energies Renouvelables, L P S, Faculté des Sciences Dhar Mehraz, BP 1796, Fès, Morocco.

I. Zorkani
Groupe des Nanomatériaux et Energies Renouvelables, L P S, Faculté des Sciences Dhar Mehraz, BP 1796, Fès, Morocco.

K. Rahmani
ERPTM, Polydisciplinary Faculty -Beni Mellal, Sultan My Slimane University, Beni Mellal, Morroco.

A. Jorio
Groupe des Nanomatériaux et Energies Renouvelables, L P S, Faculté des Sciences Dhar Mehraz, BP 1796, Fès, Morocco.

View Book :- https://stm.bookpi.org/AAER-V2/issue/view/31

Study on Magnetic Field of 1200kv Transmission Line by FEM & MATLAB | Chapter 11 | Recent Developments in Engineering Research Vol. 11

Power demand is growing rapidly with rapid industrial and commercial development and a thriving population. Modern UHV transmission line techniques are critical for the more efficient transmission of bulk quantities of power compared to earlier transmission methods. The 1200 KV UHV transmission line is India's future project to fix this situation. However, as the amount of line to line voltage rises, the transmission line complexity increases. However, with higher line to line voltage levels, transmission line complexity increases. With transmission lines, ROW is one of the main concerns. Many parameters need to be carefully designed; one of them is the distribution of the magnetic field in the transmission line region. India has begun expanding its UHV range to 1200kv. The paper proposes a magnetic field of three 1200KV line configurations. Test lines for horizontal and vertical configurations have been installed. Two finite element methods and the analytical method (image method) were used for analysis. For solving partial differential equations, FEM is used. Results from both techniques were compared. 3D electric field structure study was also carried out. Plotted outcomes are compared with ICNIRP standards and established safety limits. It also addresses the detrimental effects of excess magnetic fields. It also discusses the biological impact of electromagnetic fields on humans, animals and plants. This paper was aimed at the measurement and verification of the magnetic field in relation to the norm. It also helps to use less rights of way. Because of its advantages over lower voltage levels, the topic is under broad development and also holds importance in the future.

Author (s) Details

Akibahemad Arora
Department of Electrical Engineering and Electronics, Faculty of Technology & Engineering, The Maharaja Sayajirao University of Baroda, Vadodara-390001, Gujarat, India.

Anuradha Deshpande
Department of Electrical Engineering and Electronics, Faculty of Technology & Engineering, The Maharaja Sayajirao University of Baroda, Vadodara-390001, Gujarat, India.

View Book :- https://stm.bookpi.org/RDER-V11/issue/view/26

Emphasizing the Electromagnetism According to Maxwell's Initial Interpretation | Chapter 4 | New Insights into Physical Science Vol. 10

It is well known that classical electrodynamics, quantum electrodynamics (QED) and Quantum Field Theory (QFT) are based on the wave theory of Maxwell and his equations, but it is much less well understood that they are not based on his initial understanding of the relationship between the fields of E and B, but are based on the interpretation of this relationship by Ludvig Lorenz. Maxwell considered that both fields had to cyclically cause each other for the velocity of light to be sustained, whereas Lorenz considered that both fields had to peak at maximum synchronously at the same time for this velocity to be maintained. The equations are fairly compatible with both interpretations. However, two recent breakthroughs now suggest that the interpretation of Maxwell was right at least with respect to the subatomic level since, contrary to the interpretation of Lorenz, it enables the electromagnetic wave theory of Maxwell, so successfully applied at our macroscopic level, to be seamlessly reconciled with the electromagnetic characteristics that occur at the subatomic level to localised Electromagnetic photons and all localised charged and massive elementary electromagnetic particles from which all atoms are produced, and ultimately allow simple mechanics of electromagnetic photon emission and electron absorption to be identified during their atomic level interactions. A full collection of demonstration experiments that can easily be replicated during hands-on laboratory teaching sessions are now available to the education community, ranging from the first Coulomb electrical experiment to the 1998 magnetic experiment to help teach and validate every element of subatomic electromagnetic energy behaviour.

Author (s) Details

André Michaud
SRP - Service de Recherche Pédagogique, Canada.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/350

Observing the Changes of Seed Germination during the Year | Chapter 2 | Cutting-edge Research in Agricultural Sciences Vol. 3

 

Germination is typically small in December, but mostly in January and February, respectively. Maximum germination is observed during the spring and summer seasons. This phenomenon is not due to dormancy or secondary dormancy since germinability has a similar curve every year during long-term seed storage, only the number of germinative seeds decreases stepwise every year at each storage month. Each species or crop variety has a standard germination course throughout the year. There are also species (crops) that have an almost constant germination process throughout the year, i.e. without variation during the year, although there are a minority of genotypes, but rather exceptions. From the theoretical practical point of view, there is a probability (but not a certainty!) that genotypes should be tested at the beginning or end of the year in case of seed germination. This phenomenon has a negative effect on seed certification by companies growing seeds for cultivation practise in some plants, with great variability of germinability during the year.

Author (s) Details

Ladislav Bláha
Crop Research Institute, Prague, Czech Republic

Jiří Hermuth
Crop Research Institute, Prague, Czech Republic.

View Book :- https://bp.bookpi.org/index.php/bpi/catalog/book/274

A Revised Model of Photon Resulted by an Etherono-Quantonic Theory of Fields: Recent Advancement | Chapter 1 | Recent Advances in Science and Technology Research Vol.3

By an etherono-quantonic theory of the author [1], which deduces that the magnetic field of a
magnetic moment is generated by an etherono-quantonic vortex GM = GA+ GB of etherons and of
quantons with mass mh = h·1/c2, giving the magnetic induction B, is proposed a revised model of
pseudoscalar photon derived from the Munera’s model and the Hunter-Wadlinger model, formed by
two vectorial photons with diameter l/p, deformed to the speed’ direction to the value: l/2 proportional
with the speed. The revised model of photon is compatible with both the undulatory and the
corpuscular properties of the particles and allows a phenomenological microphysical explanation for
the Kerr and Cotton-Mouton effects and for other similar effects. It is explained also microphysically
the magnetic rotating of polarization (the Faraday effect). The model indicates the variation of the
quantum vacuum refraction index in the presence of a strong electric E-field or magnetic B-field.

Author (s) Details

Arghirescu Marius
Department of Patents and Technological information, State Office for Inventions and Trademarks, OSIM, Bucharest, Romania.

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A Critical Study of Sunspot Time Series Using Wavelet –Based Multifractal Analysis during Solar Cycle 23 and Ascending Phase of Solar Cycle 24 | Chapter 3 | Recent Advances in Science and Technology Research Vol. 1

Wavelet based Multifractal analysis techniques provides a sophisticated statistical characterization of many complex dynamical phenomena related with Sun and its environment. In this work multifractal property of the Sunspot number time series, has been analyzed during Solar Cycle 23 and ascending phase of Solar Cycle 24 using Wavelet transform and wavelet based multifractal approach. Present analysis has been performed using the software FRACLAB, developed at INRIA and available online at http://www-rocq.inria.fr. It was found that the singularities spectrum for sunspot time series was well Gaussian in shape suggesting the multifractal characteristics of time series. Thus we conclude that the multifractal based approach provides the local and adaptive description of dynamical processes related with Sun and its climate and can be applied effectively in the study of solar activity.

Author(s) Details

Dr. S. K. Kasde 
Department of Physics, Government College Bhainsdehi, Dist.- Betul-460220, Madhya Pradesh, India.

Dr. D. K. Sondhiya
Department of Physics, SAGE University, Bhopal - 462022, India.

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