I am Nathan J. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Master’s Degree in Electromagnetic, from The University of Queensland, Australia. I have been helping students with their assignments for the past 12 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
I am Moffat D. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Master’s Degree in Electromagnetic, from The University of Liverpool, UK. I have been helping students with their assignments for the past 8 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
I am Arnold H. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Electro-Magnetics, from The University of Hertfordshire, UK. I have been helping students with their assignments for the past 6 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
I am Baddie K. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Masters's Degree in Electro-Magnetics, from The University of Malaya, Malaysia. I have been helping students with their assignments for the past 12 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
Computation of electromagnetic fields scattered from dielectric objects of un...Alexander Litvinenko
Computational tools for characterizing electromagnetic scattering from objects with uncertain shapes are needed in various applications ranging from remote sensing at microwave frequencies to Raman spectroscopy at optical frequencies. Often, such computational tools use the Monte Carlo (MC) method to sample a parametric space describing geometric uncertainties. For each sample, which corresponds to a realization of the geometry, a deterministic electromagnetic solver computes the scattered fields. However, for an accurate statistical characterization the number of MC samples has to be large. In this work, to address this challenge, the continuation multilevel Monte Carlo (\CMLMC) method is used together with a surface integral equation solver.
The \CMLMC method optimally balances statistical errors due to sampling of
the parametric space, and numerical errors due to the discretization of the geometry using a hierarchy of discretizations, from coarse to fine.
The number of realizations of finer discretizations can be kept low, with most samples
computed on coarser discretizations to minimize computational cost.
Consequently, the total execution time is significantly reduced, in comparison to the standard MC scheme.
I am Moffat D. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Master’s Degree in Electromagnetic, from The University of Liverpool, UK. I have been helping students with their assignments for the past 8 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
I am Arnold H. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Electro-Magnetics, from The University of Hertfordshire, UK. I have been helping students with their assignments for the past 6 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
I am Baddie K. I am a Magnetic Materials Assignment Expert at eduassignmenthelp.com. I hold a Masters's Degree in Electro-Magnetics, from The University of Malaya, Malaysia. I have been helping students with their assignments for the past 12 years. I solve assignments related to Magnetic Materials.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Magnetic Materials Assignments.
Computation of electromagnetic fields scattered from dielectric objects of un...Alexander Litvinenko
Computational tools for characterizing electromagnetic scattering from objects with uncertain shapes are needed in various applications ranging from remote sensing at microwave frequencies to Raman spectroscopy at optical frequencies. Often, such computational tools use the Monte Carlo (MC) method to sample a parametric space describing geometric uncertainties. For each sample, which corresponds to a realization of the geometry, a deterministic electromagnetic solver computes the scattered fields. However, for an accurate statistical characterization the number of MC samples has to be large. In this work, to address this challenge, the continuation multilevel Monte Carlo (\CMLMC) method is used together with a surface integral equation solver.
The \CMLMC method optimally balances statistical errors due to sampling of
the parametric space, and numerical errors due to the discretization of the geometry using a hierarchy of discretizations, from coarse to fine.
The number of realizations of finer discretizations can be kept low, with most samples
computed on coarser discretizations to minimize computational cost.
Consequently, the total execution time is significantly reduced, in comparison to the standard MC scheme.
Final parsec problem of black hole mergers and ultralight dark matterSérgio Sacani
When two galaxies merge, they often produce a supermassive black hole binary (SMBHB) at
their center. Numerical simulations with cold dark matter show that SMBHBs typically stall out
at a distance of a few parsecs apart, and take billions of years to coalesce. This is known as the
final parsec problem. We suggest that ultralight dark matter (ULDM) halos around SMBHBs can
generate dark matter waves due to gravitational cooling. These waves can effectively carry away
orbital energy from the black holes, rapidly driving them together. To test this hypothesis, we
performed numerical simulations of black hole binaries inside ULDM halos. Our results imply that
ULDM waves can lead to the rapid orbital decay of black hole binaries.
Numerical Simulations on Flux Tube Tectonic Model for Solar Coronal HeatingRSIS International
The sun is a G-type main sequence star. Corona is an
aura of Plasma that Surrounds the Sun and other Stars. The
heating of solar Corona is one of most important problem in
Astrophysics. There are several mechanism of Coronal heating.
In this paper we discuss Numerical Simulation on Flux tube
Tectonic Model For Solar Coronal Heating .
Particle Collision near 1+1- D Horava-Lifshitz Black Holes (Karl Schwarzschild Meeting 2015 )
This poster will be presented in Frankfurt Institute for Advanced Studies at Karl Schwarzschild Meeting (20-24 July 2015)
Response of dynamic systems to harmonic excitation is discussed. Single degree of freedom systems are considered. For general damped multi degree of freedom systems, see my book Structural Dynamic Analysis with Generalized Damping Models: Analysis (e.g., in Amazon http://buff.ly/NqwHEE)
1 ECE 6340 Fall 2013 Homework 8 Assignment.docxjoyjonna282
1
ECE 6340
Fall 2013
Homework 8
Assignment: Please do Probs. 1-9 and 13 from the set below.
1) In dynamics, we have the equation
E j Aω= − −∇Φ .
(a) Show that in statics, the scalar potential function Φ can be interpreted as a voltage
function. That is, show that in statics
( ) ( )
B
AB
A
V E dr A B≡ ⋅ = Φ −Φ∫ .
(b) Next, explain why this equation is not true (in general) in dynamics.
(c) Explain why the voltage drop (defined as the line integral of the electric field, as
defined above) depends on the path from A to B in dynamics, using Faraday’s law.
(d) Does the right-hand side of the above equation (the difference in the potential
function) depend on the path, in dynamics?
Hint: Note that, according to calculus, for any function ψ we have
dr dx dy dz d
x y z
ψ ψ ψ
ψ ψ
∂ ∂ ∂
∇ ⋅ = + + =
∂ ∂ ∂
.
2) Starting with Maxwell’s equations, show that the electric field radiated by an impressed
current density source J i in an infinite homogeneous region satisfies the equation
( )2 2 iE k E E j Jωµ∇ + = ∇ ∇⋅ + .
Then use Ampere’s law (or, if you prefer, the continuity equation and the electric Gauss
law) to show that this equation may be written as
( )2 2 1 i iE k E J j J
j
ωµ
σ ωε
∇ + = − ∇ ∇⋅ +
+
.
2
Note that the total current density is the sum of the impressed current density and the
conduction current density, the latter obeying Ohm’s law (J c = σE).
Explain why this equation for the electric field would be harder to solve than the equation
that was derived in class for the magnetic vector potential.
3) Show that magnetic field radiated by an impressed current density source satisfies the
equation
2 2 iH k H J∇ + = −∇× .
Explain why this equation for the magnetic field would be harder to solve than the
equation that was derived in class for the magnetic vector potential.
4) Show that in a homogenous region of space the scalar electric potential satisfies the
equation
2 2
i
v
c
k
ρ
ε
∇ Φ + Φ = − ,
where ivρ is the impressed (source) charge density, which is the charge density that goes
along with the impressed current density, being related by
i ivJ jωρ∇⋅ = −
Hint: Start with E j Aω= − −∇Φ and take the divergence of both sides. Also, take the
divergence of both sides of Ampere’s law and use the continuity equation for the
impressed current (given above) to show that
1 ii v
c c
E J
j
ρ
ωε ε
∇⋅ = − ∇⋅ = .
Note: It is also true from the electric Gauss law that
vE
ρ
ε
∇⋅ = ,
but we prefer to have only an impressed (source) charge density on the right-hand side of
the equation for the potential Φ. In the time-harmonic steady state, assuming a
homogeneous and isotropic region, it follows that ρv = ρvi. That is, there is no charge
3
density arising from the conduction current. (If there were no impressed current sources,
the total charge density would therefore be ze ...
Computation of electromagnetic fields scattered from dielectric objects of un...Alexander Litvinenko
We develop fast and efficient stochastic methods for characterizing scattering
from objects of uncertain shapes. This is highly needed in the
fields of electromagnetics, optics, and photonics.
The continuation multilevel Monte Carlo (CMLMC) method is
used together with a surface integral equation solver. The
CMLMC method optimally balances statistical errors due to
sampling of the parametric space, and numerical errors due
to the discretization of the geometry using a hierarchy of
discretizations, from coarse to fine. The number of realizations
of finer discretizations can be kept low, with most samples
computed on coarser discretizations to minimize computational
work. Consequently, the total execution time is significantly
reduced, in comparison to the standard MC scheme.
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
I am Calisto Dante. Currently associated with eduassignmenthelp.com as a Digital Communication Assignment Help Expert. After completing my Master's in Digital Communication from, OCAD University in Toronto, Canada. I was in search of an opportunity that expands my area of knowledge hence I decided to help students with their assignments. I have written several digital communication assignments to date to help students overcome numerous difficulties they face.
Final parsec problem of black hole mergers and ultralight dark matterSérgio Sacani
When two galaxies merge, they often produce a supermassive black hole binary (SMBHB) at
their center. Numerical simulations with cold dark matter show that SMBHBs typically stall out
at a distance of a few parsecs apart, and take billions of years to coalesce. This is known as the
final parsec problem. We suggest that ultralight dark matter (ULDM) halos around SMBHBs can
generate dark matter waves due to gravitational cooling. These waves can effectively carry away
orbital energy from the black holes, rapidly driving them together. To test this hypothesis, we
performed numerical simulations of black hole binaries inside ULDM halos. Our results imply that
ULDM waves can lead to the rapid orbital decay of black hole binaries.
Numerical Simulations on Flux Tube Tectonic Model for Solar Coronal HeatingRSIS International
The sun is a G-type main sequence star. Corona is an
aura of Plasma that Surrounds the Sun and other Stars. The
heating of solar Corona is one of most important problem in
Astrophysics. There are several mechanism of Coronal heating.
In this paper we discuss Numerical Simulation on Flux tube
Tectonic Model For Solar Coronal Heating .
Particle Collision near 1+1- D Horava-Lifshitz Black Holes (Karl Schwarzschild Meeting 2015 )
This poster will be presented in Frankfurt Institute for Advanced Studies at Karl Schwarzschild Meeting (20-24 July 2015)
Response of dynamic systems to harmonic excitation is discussed. Single degree of freedom systems are considered. For general damped multi degree of freedom systems, see my book Structural Dynamic Analysis with Generalized Damping Models: Analysis (e.g., in Amazon http://buff.ly/NqwHEE)
1 ECE 6340 Fall 2013 Homework 8 Assignment.docxjoyjonna282
1
ECE 6340
Fall 2013
Homework 8
Assignment: Please do Probs. 1-9 and 13 from the set below.
1) In dynamics, we have the equation
E j Aω= − −∇Φ .
(a) Show that in statics, the scalar potential function Φ can be interpreted as a voltage
function. That is, show that in statics
( ) ( )
B
AB
A
V E dr A B≡ ⋅ = Φ −Φ∫ .
(b) Next, explain why this equation is not true (in general) in dynamics.
(c) Explain why the voltage drop (defined as the line integral of the electric field, as
defined above) depends on the path from A to B in dynamics, using Faraday’s law.
(d) Does the right-hand side of the above equation (the difference in the potential
function) depend on the path, in dynamics?
Hint: Note that, according to calculus, for any function ψ we have
dr dx dy dz d
x y z
ψ ψ ψ
ψ ψ
∂ ∂ ∂
∇ ⋅ = + + =
∂ ∂ ∂
.
2) Starting with Maxwell’s equations, show that the electric field radiated by an impressed
current density source J i in an infinite homogeneous region satisfies the equation
( )2 2 iE k E E j Jωµ∇ + = ∇ ∇⋅ + .
Then use Ampere’s law (or, if you prefer, the continuity equation and the electric Gauss
law) to show that this equation may be written as
( )2 2 1 i iE k E J j J
j
ωµ
σ ωε
∇ + = − ∇ ∇⋅ +
+
.
2
Note that the total current density is the sum of the impressed current density and the
conduction current density, the latter obeying Ohm’s law (J c = σE).
Explain why this equation for the electric field would be harder to solve than the equation
that was derived in class for the magnetic vector potential.
3) Show that magnetic field radiated by an impressed current density source satisfies the
equation
2 2 iH k H J∇ + = −∇× .
Explain why this equation for the magnetic field would be harder to solve than the
equation that was derived in class for the magnetic vector potential.
4) Show that in a homogenous region of space the scalar electric potential satisfies the
equation
2 2
i
v
c
k
ρ
ε
∇ Φ + Φ = − ,
where ivρ is the impressed (source) charge density, which is the charge density that goes
along with the impressed current density, being related by
i ivJ jωρ∇⋅ = −
Hint: Start with E j Aω= − −∇Φ and take the divergence of both sides. Also, take the
divergence of both sides of Ampere’s law and use the continuity equation for the
impressed current (given above) to show that
1 ii v
c c
E J
j
ρ
ωε ε
∇⋅ = − ∇⋅ = .
Note: It is also true from the electric Gauss law that
vE
ρ
ε
∇⋅ = ,
but we prefer to have only an impressed (source) charge density on the right-hand side of
the equation for the potential Φ. In the time-harmonic steady state, assuming a
homogeneous and isotropic region, it follows that ρv = ρvi. That is, there is no charge
3
density arising from the conduction current. (If there were no impressed current sources,
the total charge density would therefore be ze ...
Computation of electromagnetic fields scattered from dielectric objects of un...Alexander Litvinenko
We develop fast and efficient stochastic methods for characterizing scattering
from objects of uncertain shapes. This is highly needed in the
fields of electromagnetics, optics, and photonics.
The continuation multilevel Monte Carlo (CMLMC) method is
used together with a surface integral equation solver. The
CMLMC method optimally balances statistical errors due to
sampling of the parametric space, and numerical errors due
to the discretization of the geometry using a hierarchy of
discretizations, from coarse to fine. The number of realizations
of finer discretizations can be kept low, with most samples
computed on coarser discretizations to minimize computational
work. Consequently, the total execution time is significantly
reduced, in comparison to the standard MC scheme.
All of material inside is un-licence, kindly use it for educational only but please do not to commercialize it.
Based on 'ilman nafi'an, hopefully this file beneficially for you.
Thank you.
Similar to Magnetic Materials Assignment Help (20)
I am Calisto Dante. Currently associated with eduassignmenthelp.com as a Digital Communication Assignment Help Expert. After completing my Master's in Digital Communication from, OCAD University in Toronto, Canada. I was in search of an opportunity that expands my area of knowledge hence I decided to help students with their assignments. I have written several digital communication assignments to date to help students overcome numerous difficulties they face.
I am Shane Bruce. I love exploring new topics. Academic writing seemed an interesting option for me. After working for many years with eduassignmenthelp.com, I have assisted many students with their assignments. I can proudly say, each student I have served is happy with the quality of the solution that I have provided. I have acquired my Master’s Degree in MATLAB, from Curtin University in Perth, Australia.
I am Aaron Wyatt. I am a Digital Communication Assignment Expert at eduassignmenthelp.com. I hold a Master’s Degree in MATLAB, from Aston University, England. I have been helping students with their assignments for the past 15 years. I solve assignments related to Digital Communication. Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Digital Communication Assignments.
I am John Klok. I am an Electromechanics Assignment Expert at eduassignmenthelp.com. I hold a Master’s Degree in Electromechanics, from Royal Roads University, Canada. I have been helping students with their assignments for the past 6 years. I solve homework related to Electromechanics. Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Electromechanics Assignments.
I am Moffat K. I am a Hydraulic Engineering Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Engineering, from Harvard University, USA. I have been helping students with their assignments for the past 8 years. I solve assignments related to Hydraulic Engineering.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Hydraulic Engineering Assignments.
I am Carl D. I am a Bimolecular Homework Expert at eduassignmenthelp.com. I hold a Master's in MSc, from DePaul University, Chicago. I have been helping students with their homework for the past 7 years. I solve homework related to Biomolecular.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Biomolecular Homework.
I am Craig D. I am a Physical Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physical Chemistry, from The University of Queensland. I have been helping students with their homework for the past 9 years. I solve assignments related to Physical Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com. You can also call on +1 678 648 4277 for any assistance with Physical Chemistry Assignments.
I am Peterson N. I am a Physical Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physical Chemistry, University of Melbourne, Australia. I have been helping students with their homework for the past 8 years. I solve assignments related to Physical Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Physical Chemistry Assignments.
I am Grey N. I am a Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Chemistry, from Calgary, Canada. I have been helping students with their homework for the past 6 years. I solve assignments related to Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Chemistry Assignments.
I am Grey N. I am a Physical Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physical Chemistry, from Calgary, Canada. I have been helping students with their homework for the past 6 years. I solve assignments related to Physical Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Physical Chemistry Assignments.
I am Frank P. I am a Physical Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physical Chemistry, from Malacca, Malaysia. I have been helping students with their homework for the past 6 years. I solve assignments related to Physical Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Physical Chemistry Assignments.
I am George P. I am a Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Chemistry, from Perth, Australia. I have been helping students with their homework for the past 6 years. I solve assignments related to Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Chemistry Assignments.
I am Samantha K. I am a Physics Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physics, from McGill University, Canada. I have been helping students with their homework for the past 8 years. I solve assignments related to Physics.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Physics Assignments.
I am John G. I am a Chemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Chemistry, from London, UK. I have been helping students with their homework for the past 6 years. I solve assignments related to Chemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Chemistry Assignments.
I am Terry K . I am a Semiconductor Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Semiconductor, from the University of Chicago, USA. I have been helping students with their homework for the past 8 years. I solve assignments related to Semiconductor.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Semiconductor Assignments.
I am Anastasia L. I am a Biochemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Biochemistry, from Clemson University, USA. I have been helping students with their homework for the past 6 years. I solve assignments related to Biochemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Biochemistry Assignments.
I am Jason B. I am a Biochemistry Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Biochemistry, from Princeton University, USA. I have been helping students with their homework for the past 5 years. I solve assignments related to Biochemistry.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Biochemistry Assignments.
I am Irene M. I am a Physics Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Physics, from California, USA. I have been helping students with their homework for the past 8 years. I solve assignments related to Physics.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Physics Assignments.
I am Irene M. I am an Electromagnetism Assignment Expert at eduassignmenthelp.com. I hold a Ph.D. in Electromagnetism, from California, USA. I have been helping students with their homework for the past 8 years. I solve assignments related to Electromagnetism.
Visit eduassignmenthelp.com or email info@eduassignmenthelp.com.
You can also call on +1 678 648 4277 for any assistance with Electromagnetism Assignments.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
The Indian economy is classified into different sectors to simplify the analysis and understanding of economic activities. For Class 10, it's essential to grasp the sectors of the Indian economy, understand their characteristics, and recognize their importance. This guide will provide detailed notes on the Sectors of the Indian Economy Class 10, using specific long-tail keywords to enhance comprehension.
For more information, visit-www.vavaclasses.com
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Split Bills in the Odoo 17 POS ModuleCeline George
Bills have a main role in point of sale procedure. It will help to track sales, handling payments and giving receipts to customers. Bill splitting also has an important role in POS. For example, If some friends come together for dinner and if they want to divide the bill then it is possible by POS bill splitting. This slide will show how to split bills in odoo 17 POS.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
1. For any help regarding Magnetic Materials Assignment Help
Visit :- https://www.eduassignmenthelp.com/
Email :- info@eduassignmenthelp.com
call us at :- +1 678 648 4277
2. 1. Solve for the magnetization vs. field for a) a thin film of amorphous iron boron silicon
(assume µoMs = 1.6T and K = 0) with the field applied normal to the film surface. b) a
single crystal sphere of Ni with the field applied along the [111] direction.
2. Does the energy required for complete saturation in the Stoner-Wohlfarth model as
described by Eq. 9.13 diverge for 0 < θo < π/2 or take on a finite value?
3. Consider the magnetization process in a single-domain particle having cubic
anisotropy using a field applied along an easy axis orthogonal to the initial
magnetization. (Because of the uniqueness of this initial condition, i.e. the special way
the sample is prepared before application of the measuring field, the result you derive
will not be typical for cyclic magnetization.) Write and plot the energy density vs. θ then
find the shape of the m-h curve. Locate the critical parameters by combining the
equilibrium condition with the condition that the solution to ƒ'(θ) = 0 also be an
inflection point.
4. Consider the two dimensional magnetization of a thin film with four-fold in-plane
anisotropy ƒa = K1 cos22θ with an external field and stress σxx applied collinearly as
shown below:
eduassignmenthelp.com
3. Solve for the equation of magnetization and sketch the results for B1exx > 0 and < 0.
Compare with the results in Prob. 9.4.
5. Consider a thin film with in-plane cubic anisotropy K1 and a superimposed uniaxial
anisotropy with easy axis along one of the four-fold easy axes. A field is applied
inplane, perpendicular to the uniaxial easy axis. a) Write the expression for the free
energy. b) Sketch the energy surfaces for the various terms. c) Write the equation of
motion and sketch m vs. H. d) How does m-H differ for Ku > 5 K1 or Ku < 5 K1?
6. Work out the steps to derive the field dependence of magnetization M(H) for a material
with uniaxial magnetic anisotropy and H applied perpendicular to the easy direction of
magnetization.
eduassignmenthelp.com
4. 7. Explain why the coercivity of amorphous alloys goes through a minimum as the
magnetostriction constant λs goes through zero. Give formula(s) to support your
explanation.
8. Derive an expression for rotational permeability in cubic anisotropy, and compare with
Eq. 9.8 for uniaxial anisotropy.
9. Determine the g-factor of the YIG sphere in Fig. 9.46 using Eq. 9.15.
eduassignmenthelp.com
5. 1 a) For each surface of the film, Hmagstat = - (1/2)M = -Ms cosθ, so Hmagstat = -M.
fmagstat = -µo Ms . Hmagstat
f = -µo MsH cosθ + (µo/2) Ms 2 cos2θ
∂f/∂θ = 0 gives: H = Ms cosθ = M⊥ (after division by sinθ, which is zero
only at and above saturation). Thus:
H/Ms = M⊥/Ms = m
The system saturates when H = Ms =1.27 MA/m or when B = Bs = 1.6T
b) [111] is the easy axis, so the only anisotropy is shape. Answer is same as a)
but Ha = Hmagstat = -NM with N = 1/3 instead of 1. m = 3H/Ms
Saturation is achieved at (1/3) µoMs ≈ 0.2T.
2. Putting m = 1 in Eq. 9.13 gives sin 2θo = 0 which can only be satisfied for θo = 0 or
π/2. So the m(H) curves in Fig. 9.3 never reach m = 1 except for the two limiting cases,
for θo = 0 or π/2.
eduassignmenthelp.com
6. 3. The energy density, f = K1 sin2θ cos2θ - MsH cosθ , is plotted below. f is minimized
for the equation of motion: (m - 2m3) - h = 0, where h = MsH/2K1 . This cubic equation
may have up to three different solutions. The physically meaningful one(s) can be
discerned by considering the energy as a function of θ.
The equilibrium orientation θο decreases toward zero, i.e. m = cosθ increases as H
increases. At a field h ≈ 0.25, the energy minimum near θ = 1.2 vanishes and the
magnetization may jump abruptly to θ = 0, m = 1.
The calculated form of m versus h is shown. The discontinuous change in m is a
first order transition; it corresponds to what is called a switching field. It can be
determined from the derivatives of the equation of motion, either ∂h/∂m = 0 or ∂m/∂h =
∞. Thus, the critical magnetiztion at switching is given by: 1 - 6mc 2 = 0. Thus mc =
0.408... (or θc = 66o) which occurs for hc = 2/(3√ 6) = 0.272...
Fig. for Sol. 9.3. Left, normalized energy density as a function of θ (radians)for different
values of reduced field, h = H/Ha. Shift in equilibrium orientation with h is indicated.
Right, calculated m-h behavior: m increases with increasing h then at mc = 0.408, jumps to
m = 1.0. The dashed line in the m-h curve shows the continuation of the mathematical
solution. Note that the initial slope ∂m/∂h)o = 1 or ∂M/∂H = Ms/Ha gives the value for the
anisotropy field Ha. Thus, the value of K1 can be determined by measuring m(h) and using
either the initial slope or the critical field hc.
eduassignmenthelp.com
7. Prob. 3. Left, normalized energy density as a function of θ (radians) for different
values of reduced field, h = H/H1. Shift in equilibrium orientation with h is indicated.
Right, calculated m-h behavior: m increases with increasing h then jumps to m = 1.0 at
mc = 0.408.
4. The energy density is f = -MsBo cosθ + K1 cos22θ + B1exx (cos2θ - υ sin2θ)
∂f/ ∂θ = 0 gives m[8K1 (2m2 - 1) + 2B1 exx (1 + υ)] = Ms Bo where m = cosθ and 1-
m2 = sin2θ. For exx = 0 this gives the result sketched as the solid line: mr = 1/√ 2,
saturation (m = 1) occurs at H = (8K1/µ Ms) = Ha.
eduassignmenthelp.com
8. For B1exx > 0, mr < 1/√ 2
B1exx < 0, mr > 1/√2,
and Ha = [8K1 + 2 B1exx (1 + υ)]/(µ Ms).
Thus, saturation occurs at higher fields
for B1exx > 0 and lower fields for
B1exx < 0.
5. a) From Eq. 6.6, setting θ = 90o , we have
f = Kusin2 φ + (K1/4)sin2 2φ. −µοMs Ηsinφ.
b) Energy surfaces:
eduassignmenthelp.com
9. c) Zero torque gives 2K sinφ cosφ + K1 sin2φ cos2φ = µο Ms Η cosφ. Divide by cos u φ
which is zero only at and above saturation. The parameter of interest is the component of
magnetization along the field direction, sinφ, which we define as m. The equation of
motion is then expressed:
2Km + 2K m (1 − 2m 2 ) = µ M H
d) Numerical solutions are shown at the right
for three values of the ratio of uniaxial to cubic
anisotropy constants, Ku/K1 = 2, 5 and 8. K1 =
104 J/m3 and the field scale is µoH (T). Note
that for Ku/K1 = 5, the infinite slope point
occurs at m = 1. For smaller Ku, the
magnetization shows a discontinuity as was
found in Prob. 9.3. For larger Ku, the m-h
curve approaches a linear form typical of pure
uniaxial, hardaxis magnetization.
eduassignmenthelp.com
10. 7 Coercivity goes inversely as permeability. More exactly Hc is proportional to (Ku +
(3/2)λs σ)/µοMs. In amorphous materials there is no magnetocrystalline anisotropy so K
is very small. The coercivity then vanishes or goes through a minimum when
magnetostriction vanishes.
9. g = 2.11.
eduassignmenthelp.com
11. 1. Assume a 180o domain wall exists in a demagnetized, uniaxial magnetic material.
a) Sketch what happens to the domain magnetization and domain wall in
the two cases described below for H > 0 but less than saturation, i.e.
applied field parallel to the easy axis,
ii) applied field perpendicular to the easy axis
b) Sketch the M-H loops in each case.
c) Describe how a defect might pin or impede domain wall motion.
i)
eduassignmenthelp.com
12. c) See Text, Fig. 9.12. Domain wall energy density is σdw = 4(AK)1/2. If this is uniform
throughout the material, the wall moves under application of slightest field H. If material
is inhomogeneous, wall area or A or K may be a function of position. Non-magnetic
defects lower wall energy; magnetic defects can raise or lower all energy. This gives Hc ≠
0 and the loop in (a) above, opens up.
eduassignmenthelp.com