Your search returned over 400 essays for "magnetic fields"
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The Magnetic Fields Of The Magnet

- Introduction: Magnetism was not studied or utilized before 1821 as it is today. A few hundred years ago people understood how magnets worked, but didn’t have many applications of the magnet because they were limited by the technology of their time. The applications of magnets today have opened a new door as to how we can harness the power of a magnet. I had a basic working knowledge of how magnets worked, such as polarity, but with researching different aspects of the magnet I have learned that we need to advance the potential capabilities of the magnet and fully understand how we can harness the magnet....   [tags: Magnetic field, Electromagnetism, Magnetism]

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Interstellar Magnetic Fields And Gases

- Interstellar Magnetic Fields and Gases Interstellar magnetic fields play an important role in our galaxy by returning stellar material back out into interstellar space. The magnetic fields are frozen in place within the hot ionized gases of the interstellar medium acting as an additional energy reservoir; the magnetic fields wear several hats regarding the work that needs to be done in our galaxy. However, there is still little known about the all of the roles the ISMF plays. There is a division between large and small scale fields; the former found on the scales of the spiral arms of our galaxy, and the latter found within the interstellar space....   [tags: Magnetic field, Magnetism, Electromagnetism]

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Magnetic Fields of Stationary Magnets

- Missing figures/equations My goal in writing this paper is two fold. Goal one is to try and understand how a stationary magnet exerts force by means of a magnetic field (even across a complete vacuum). Frequently, electromagnetic fields are compared to the gravitational field. Goal two is to explore the similarities between the two types of fields to see if comparison throws any light on the mechanism of magnetic field generation. The term action-at-a-distance is often used to describe forces that travel through space and exert their effect without directly touching the objects acted upon....   [tags: physics science magnet magnetic field]

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Electric Magnetic Fields

- Electric Magnetic Fields Homes are filled with electric magnetic fields (EMFs), EMFs are created every time anything electrical is used. Hair dryers, alarm clocks, micro waves and radios are just a few examples. All these appliances cause leukemia, a form of cancer. High EMF fields are not very unusual. EMFs can pass through walls, so one can also be exposed to them from power lines and transformers. Using a hair dryer for 3 minutes would give the same exposure that one would get living next to a high voltage power line....   [tags: Informative, Expository]

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The hard drive uses two important principles about the magnetic fields.

- The hard drive uses two important principles about the magnetic fields. When we write data onto the hard drive Cit uses the law of electromagnetic induction and some material is magnetic. The hard drive uses two important principles about the magnetic fields. When we write data onto the hard drive it uses the law of electromagnetic induction and some material is magnetic. When we read data from the hard drive, it uses the Lenz's law. How hard disk drive works: Firstly we should know the two important part of the hard disk drive, 1....   [tags: Computer Science]

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The Effects Of Magnetic Permeability On The Magnetic Field

- Aeromagnetic Data Theory Scalar aeromagnetic data reflect both induced and remanent magnetic fields. Induced magnetism is caused by the earth’s magnetic field and is mainly the result of the magnetic susceptibility of the rock. Magnetic susceptibility is expressed as a unit-less proportionality constant denoted by an International System of Units (SI), which simply reflects the susceptibility of a rock to become magnetized in the presence of a magnetic field. This susceptibility is mainly a function of the rock’s magnetite content....   [tags: Magnetic field, Magnetism, Igneous rock]

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The Effects Of Magnetic Permeability On The Magnetic Field

- Aeromagnetic Data Theory Scalar aeromagnetic data reflect both induced and remnant magnetic fields. Induced magnetism is caused by the earth’s magnetic field and is mainly the result of the magnetic susceptibility of the rock. Magnetic susceptibility is expressed as a unit-less proportionality constant denoted by an International System of Units (SI), which simply reflects the susceptibility of a rock to become magnetized in the presence of a magnetic field. This susceptibility is mainly a function of the rock’s magnetite content....   [tags: Magnetic field, Magnetism, Igneous rock, Basalt]

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Active vs. Passive Magnetic Bearings

- Introduction A magnetic bearing is a type of bearing that holds up a load using magnetic levitation. Scientists first discovered the magnetic effects in magnetic minerals in 500B.C. In the late 20th century, scientists began developing ways where this magnetic effect could be implemented into a bearing, creating magnetic bearings. Today, magnetic bearings can be found in many applications where no physical contact is required or extreme environmental conditions exists, including very high and low temperatures....   [tags: magnetic levitation, minerals]

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Use of Magnetic Gradiometers in Marine CSEM

- Typically, marine CSEM surveys measure magnetic and electric fields using seafloor sensors. Three components can be measured for both electric and magnetic fields, though vertical magnetic fields can be problematic. For the marine CSEM problem in an axisymetric earth, this component (BZ) is identically zero and so measurement is typically made of inline (EX and BX) crossline (EY and BY) and vertical electric field (EZ). Magnetic gradients are the gradients of the magnetic fields (BX and BY) in particular directions....   [tags: Information Technology]

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Magnetic Resonance Imaging

- MRI Magnetic Resonance Imaging How the analytical chemistry or medical diagnosis application works Getting an MRI is a non-invasive method used to look at images inside an object. MRI’s are mainly used to observe pathological or physiological developments of living tissues. The patient simply lies on his or her back and slides onto the bore- the tube running through the magnet. An MRI’s job is to find tissue and determine what it is, by using radio wave pulses of energy. The MRI creates 2-D or 3-D images of each point in the patient’s body....   [tags: medical diagnosis applications]

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The Role of Magnetic Stimuli in Animals

- In as early as the year 1855 Minddendorf proposed the idea of broad front, one-direction migration also suggested a means of orientation, that birds were capable of detecting the magnetic poles and of maintaining their bearing therefrom. Since then many similar ideas have continued to pop up at random intervals (Carthy 56). An immediate difficulty is the lack of any structure or tissue that could possibly react to the magnetic field. In the year 1948, the discovery of certain forces were indeed produced by placing 'non-magnetic' material in a magnetic field, however they were far too minute to merit any serious consideration (Carthy 59)....   [tags: Papers]

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Magnetic Therapy

- Magnetic Therapy Probably one of the largest contemporary trends in the therapeutic world is the use of magnetic therapy. However, it is also one of the least researched modalities, and has very little sound explanation for it's effectiveness. Winning over its clientele with testimonials by everyone from doctors to elite athletes, magnets are making a place for themselves in the health and therapeutic fields. This is accomplished by utilizing many different marketing strategies and very little research....   [tags: Papers]

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Magnetic Disks

- Magnetic Disks (Hard Disk) The topic of magnetic disks is one that involves many physics related phenomenon. The intricate structure and design of “Magnetic Disks” (or hard disks) in computers include the principles of Fluid Flow, Rotational Motion, Electromagnetism, and more. This paper will focus mainly on the previously listed physics occurrences, and the design that goes into engineering the magnetic disk to include them. These physics principles are utilized in such a way that makes the hard disk a very common and useful tool, in this day and age....   [tags: essays research papers fc]

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Magnetic Systems

- For Levitation In ancient times men knew of a special kind of rock that could pull other rocks of the same kind and pieces of iron toward themselves. Such rocks were called lodestones. Today man uses the same force exerted by electromagnets and permanent magnets to provide magnetic aide to trains and more efficient power generators. This report will focus on the use of magnets in the generation of electricity and magnetically aided trains. Magnetism is defined as the force exerted by a magnetic field....   [tags: Free Essay Writer]

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Magnetic Therapy

- Magnetic Therapy As we continue to develop as a society, more and more people are looking for newer methods to help themselves become and stay healthy. One of the ways we have done this was to emulate remedies of the past. A good example of this would be the use of magnets. Magnets were used in early civilizations across the globe. The use of magnets has been found in medical journals of the early Chinese. The Ancient Greeks used magnetic rocks, lodestone, as a healing tool (http://www.magicnet.net/~daw/html/modern.html)....   [tags: Medicine Medical Papers]

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Investegation Of Megnetic Fields

- The Investigation of Magnetic Fields. Introduction: We already know that the magnets have a magnetic field around them, which allows them to attract magnetic elements like iron. In this lab the magnetic field of a magnet will be investigated. By putting a thin layer of iron filings on the peace of plastic under which will be a magnet bar, we will be able to see this field. Purpose: To see the patterns of a magnetic field of a single magnet and fields of two magnets when they are put together in different positions....   [tags: essays research papers]

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Magnetic Resonance Imaging

- Magnetic Resonance Imaging In 1944, Isidor Isaac Rabi was awarded the Nobel Prize for Physics for his resonance method for recording the magnetic properties of atomic nuclei. This method was based on measuring the spin of the protons in the atom's core, a phenomenon known as nuclear magnetic moments. From Rabi's work, Paul C. Lauterbur and Peter Mansfield were able to research into magnetic resonance imaging (also known as nuclear magnetic resonance, NMR) and were awarded the Nobel Prize for Medicine in 2003....   [tags: Papers]

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Magnetic Resonance Imaging

- The Faces Behind the Discovery of Magnetic Resonance Imaging Isidor Isaac Rabi He won the 1944 Nobel Prize in Physics for his "resonance method for recording the magnetic properties of atomic nuclei." He was the one to discover that protons have magnetic moments and that they precess around an external magnetic field. His experiments (on nuclei) revealed the jump between energy states of the proton when resonated with radio frequency waves. Felix Bloch & Edward Purcell Both men independently took Rabi's experiments to the next level - condensed matter....   [tags: MRI]

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Application and History of Magnetic Monopoles

- The purpose of this paper is to talk about magnetic monopoles, their history, synthetic monopoles, and their applications. Although natural monopoles have yet to be discovered and we are still testing the development of synthetic monopoles that are far from perfect, monopoles, with their unique properties would bring dramatic changes to our society and would rapidly move up to the next level of technology. Hypothetically speaking, monopoles could be used to create a magnetic train similar to maglevs, and a unique motor/generator....   [tags: perrie curie, dipoles, technology]

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Why Should Magnetic Levitation Trains be Implemented in the United States?

- ... The same concept of magnetism is used to propel the train forward and to brake. The attractive and the repulsive forces brought about by the superconducting magnet and the coils are applied. There are propulsion-coils positioned on both sides of the guide way that are powered by an alternating current emanating from a power substation. The alternating current induces a shifting magnetic field, which creates different temporary poles at timed intervals. Due to the positioning of the semiconducting magnets and creation of the different electromagnetic forces, the like pole tend to push while the unlike poles attract, therefore, causing motion in the direction dictated by the alternating cu...   [tags: railway, propel, tracks]

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Magnetic Levitation and Propulsion through Synchronous Linear Motors

- Magnetic Levitation and Propulsion through Synchronous Linear Motors MagLev technology is entirely different from any form of transportation in operation today, but the basic principles that lie at the foundation are not beyond the understanding of the beginning electricity and magnetism student. It is in the application of these principles to design and optimize an actual train that things get hairy. The basic idea has been researched since the mid-sixties, but it is only now that economically feasible prototypes are being built and governments are seriously looking towards magnets to propel us into the next century....   [tags: Papers]

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Misconceptions Regarding the Magnetic and Electric Polarization

- Polarization is the separation of the negative and positive charges within an atomic object, a nuclear, and a chemical system. Through induction, the movement of electrons within an object mixes. The system or the object is has an excess of the negative electrons concentrated on one side while the other side has a concentration of positive electrons. This leads to concentration of the opposite charges on different ends of the object (Askeland and Pradeep 116). This paper studies the misconceptions and the confusions regarding the magnetic and the electric polarization....   [tags: chemical systems, electrons, negative charge]

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EMF Radiation: Serious Health Hazard for People

- Technology changes everything in this world. Our life has become more convenient and more efficiency which benefits by these new technology. But during this time, some people have considered about some risks of these technologies. EMF radiation is one of them. People have argued for a long time that whether EMF radiation really poses health hazard or not. I insist that EMF radiation is harmful for people’s health and particularly to young children. This opinion can be well proved by all the information I have searched and more people should know about this....   [tags: Technology, Electromagnetic Fields]

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Efficiency of Angular Momentum Transport

- ... For example, \cite{girart06} detected hour-glass shaped geometry of the magnetic field in the low-mass protostellar system NGC 1333 IRAS 4A using the Submillimeter Array polarimetry observations at 877 $\mu$m dust continuum emission. \cite{chapman13} detected a correlation between core magnetic field direction and protostellar disk symmetry axis in a few low-mass protostellar cores using the SHARP polarimeter at Caltech Submillimeter Observatory at 350 $\mu$m dust continuum emission. \cite{donati05} probably detected magnetic field with azimuthal component of order of 1 kGs in the FU Orionis accretion disk....   [tags: strength, magnetic, disks]

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The Effects Of Armature Flux On The Primary Field Flux

- 2) Explain, using diagrams, armature reaction in a dc motor, the effects it has on the motor and methods to reduce it. Explanation: DC motor: A DC motor is any class of electrical machines that converts direct current electrical power into mechanical power. The most common types rely on magnetic fields. Armature: The part of an electrical motor or generator that produces an electric current when it turns in a magnetic field. Magnetic flux: Magnetic flux is the number of magnetic field lines (also called as magnetic flux density) passing through A closed surface such as conducting coil....   [tags: Magnetic field, Electromagnetism, Dynamo]

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The Physics Of The Field Of Physics

- It is not easy feat to become an inspiration of Albert Einstein, considering that he is one of the most famous and recognized scientist. Of three people whose picture hung on Einstein’s wall, Michael Faraday was one of them. Although Faraday had come from a lower class in the 1800s, his eagerness to learn more about the world propelled him to great discoveries that changed the world. One of the most important findings for the future of both technology and the field of physics was Faraday’s breakthrough of the electromagnetic induction and his discovery of the magnetic field....   [tags: Magnetic field, Electromagnetism, Michael Faraday]

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How A Permanent Magnet Is Affected By Temperature

- This design practical examines how the strength of a permanent magnet is affected by temperature. The independent variable for this experiment is the temperature of the magnet (in degrees celsius), while the dependant variable is the strength of the magnetic field (in teslas). The variables kept constant are: The measuring device (phone with the app Metal Sniffer) The orientation of magnet and measuring device The distance between magnet and measuring device Location of the experiment (so the interference from other magnetic fields is constant throughout the experiment) Type of magnet (will be some variation between magnets which is out of our control) Heating environment (in water, with sam...   [tags: Magnetic field, Ferromagnetism, Magnet, Magnetism]

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Chapter 2 : Structure And Results

- ECE 699C Graduate Project dq transformation Professor: Dr. BRUNO OSORNO Submitted by Name: Akhilesh Dutt Sharma CSUN ID #: 104949453 Table of Contents Chapter 1: Introduction Chapter 2: Machine Model Chapter 3: Transformation Chapter 4: Inverse transformation Chapter 5: Balanced Condition Chapter 6: Transforming Voltage Equation Chapter 7: Final Model Chapter 8: Simulation and results Conclusion References/Bibliography/Works Cited Introduction To concentrate or to direct the useful flux most of the machine now days uses iron as a medium, to store energy or to provide th...   [tags: Magnetic field, Electromagnetism, Electric charge]

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Soft Computing Techniques Used in Engineering Fields

- Soft computing techniques are set of nature-inspired computational methodologies which consider the computational utility of architectures and algorithms inspired by nature and their applications for solving mathematical problems. These are basically stochastic search techniques and are computationally efficient as they possess the ability of implementing distributed computing. Unlike traditional hard computing techniques, these set of techniques have the ability to deal with partial and noisy sets of data, tolerance to initial impression and providing a robust solution with the requirement of minimal computing resources....   [tags: Data, Structure, Damage Assessment]

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Effect of injection or Suction and Magnetic Field on oscillatory flow in a planer channel

- An oscillatory hydrodynamic flow through porous medium bounded by two horizontal parallel porous plates in the presence of transverse magnetic field is investigated. Both the stationary plates are subjected to the same constant injection / suction velocities ( V ). A closed form analytical solution is obtained and the affects of different parameters (Injection / suction Parameter, Darcy number, Hartmann number, Frequency of oscillations etc.) on velocity field and skin-friction are discussed with the help of graphs in details....   [tags: Physics, Technology]

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Marie Curie and The Discobery of Radim and Plonium

- Marie Curie... She is best known for her discovery of radium and polonium and her work with radioactivity. She encountered times of adversity in her career just because she was a woman, but she met her challenges and overcame them. Marie Curie exceeded the barriers put on women in her time to become one of the world’s most famous scientists and used her knowledge to the benefit of humanity. Marie Curie was breaking barriers even when she was young. Marya Salomee Sklodowska was born on November 7, 1867 in Russia controlled Poland....   [tags: woman, magnetic properties, paris]

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The, Coronal And Axial Planes

- Gradients are used to gain slices in the sagittal, coronal and axial planes similarly to CT. Gradient coils are used to modify the main magnetic field, which produces magnetic gradients. The gradient coils are in X, Y and Z planes, to produce image slices over any plane (Le Bihan, 2015). Changing the gradient deviates the precessional frequencies and the moments of hydrogen- 1 nuclei. Hence, allowing a unique address to be gained (Plewes, 2012). Despite the fact that MRI does not produce ionising radiation, however, it still poses biological effects to humans (table 2)....   [tags: Sound, Frequency, Magnetic field]

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Can Nano Technology Help Clean Up Oil Spills in the Ocean and Seas?

- Oil spills has been an ongoing problem worldwide. Also, on a minor case it creates a hazardous effect on the environment. It is also very dangerous to the animals and their habitat. Most of the time, the damage it causes is irreversible. So the animals lose their homes causing them to be endangered. Increasing the quantity of oil drilling and oil shipping can certainly lead to a lot of oil spills. Existing strategies of cleaning up oil spills are not up to the task. Magnetic engineering (Nanotechnology) may well be the answer....   [tags: nanoparticles, oil spill, magnetic engineering]

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Efficient Wireless Power Transfer Through Magnetic Resonance Coupling

- Imagine a situation where no electrical device has to be plugged into a wall. In this case, a laptop or cell phone can charge itself easily and seamlessly just by being placing inside a room. This is the ability of many experimental wireless power devices that will be adapted to domestic use in the future. Today, the prevailing methods of energy transfer are wires and batteries. Wired connections are perhaps the most common. With this energy transfer method, energy is delivered from a power plant to a home....   [tags: Energy ]

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The Earth Magnetic Field

- It’s the magnetic field that extends from the earth’s interior to where it meets the solaria stream of charged particles emanating from the sun. The magnetic field resembles the field of a large bar magnet near its center or that due to a uniformly magnetized sphere. Its origin is thought to be generated deep down in the earth’s core. At the surface of the earth, the pole of this equivalent bar magnet, nearest the north geographical pole is actually a south” magnetic pole. This paradoxical situation exists since by convention a north seeking end of a compass needle is defined as pointing north yet must point to a pole of opposite sense or South Pole of the earth’s magnetic field....   [tags: solaria stream, magnetic storms]

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The Applications and Properties of Ferrofluids

- Missing Figures The purpose of this paper is to describe and explain the properties of ferrofluids. Imagine the applications of a liquid substance that can be controlled at a distance by a magnetic force. To create such a liquid is not as simple as liquefying a magnetic solid. Magnetic solids lose their magnetic properties at the temperature above the Curie temperature of the substance. At that temperature thermal energy overwhelms the tendency of the electrons to align in regions of similar spins....   [tags: Magnets Magnetics]

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Why Earth 's Magnetic Shield Matters

- Why Earth 's Magnetic Shield Matters Prompt #1: Did it surprise you to know how much our magnetic field protects us?  Yes, it surprises me, I did not expect that the magnetic field was an essential key for organic life. I think this is an essential aspect to find a new ex-planet that can hold the future of humanity. How do you think life on Earth would be affected if magnetic field weakened significantly?  I think, if the magnetic field weakened significantly, the life would evolve considerably adapting to the new earth conditions....   [tags: Earth, Solar System, Earth's magnetic field, Sun]

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The Cambodian Killing Fields Should Never Be Forgotten

- It was a devastating three years in Cambodia, a country in Southeast Asia. Khmer Rouge, the Communist Party of Kampuche, and their leader “Pol Pot”, was the leader of the biggest genocide Cambodia has seen. Torturing, hanging, and murdering 1.7 million (25% of Cambodia’s population) from 1975 to 1979 (The Killing Fields). Many were to ask, why would a person want to cause millions of deaths. The answer. To centralize and nationalize the peasant farming system over night (The Killing Fields of Cambodia)....   [tags: Khmer Rouge, Pol Pot, The Killing Fields]

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The Killing Fields of Cambodia - Are they Worth Remembering?

- The Killing Fields of Cambodia - Are they Worth Remembering. “I know of no parallel to the conditions which have been experienced in Cambodia over the past decade to any other experience I have had. In the case of post-war Europe, there is the vast tragedy of the concentration camps . . . but thank God, the world had an immediate reaction and to this moment, there has been a sensitivity to events which happened forty years ago. But, in the case of Cambodia, for some extraordinary reason, I am left with the strong impression that the world wants to forget the tragedy in Cambodia – they want to forget it!” SIR ROBERT JACKSON, deputy Secretary-General, United Nations January 1983 (qtd....   [tags: Killing Fields of Cambodia]

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Analysis Of ' I Dreamed I Moved Among The Elysian Fields ``

- Disney movies may want us to believe that Greek Mythology is all about heroes defeating the villains and that the Gods are the good guys. However, minimal research will reveal that this isn’t the case. In Edna St. Vincent Millay’s sonnet “I Dreamed I Moved among the Elysian Fields” she intertwines the allusions to mythological Greek woman with the speaker 's own experience to make a powerful statement on the sexual objectification and victimization of women in the 1930s. The speaker begins the poem an ethereal tone masking the violent nature of her subject matter....   [tags: Greek mythology, Zeus, Elysian Fields, Elysium]

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The Exploitation Of The Fields

- A job that employs hundreds of thousands of people in the United States would often be perceived to be beneficial to society. In the case of working in fields, people are put to work and receive an income so that they are better able to support themselves. However, what is lacking in this common mentality that putting women to work in the fields is advantageous, is that the harm being done to these women far outweighs the positive factors of having a job. In the documentary, Rape in the Fields, the troubling outcomes of working in the fields is finally given awareness....   [tags: Rape, Sexual intercourse, Sexual assault]

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The Fields of Dunbar

- The Clang of swords pounded together, and horrendous battle cries rang out through the fields of Dunbar. Hidden within the walls of “Dunbar Keep”, Patunia Sinclair sat crunched together with the other women who’d been shoved inside by their men. She was frustrated, and couldn’t believe the audacity of those who dared to breach the castle. And of all the times to do so, when she was to be wed on the morrow. She had been working hard on her head piece when the attack occurred. “Me Lady, would ye be needin’ ‘elp wit ye veil,” Autia, Patunia’s dress maid asked....   [tags: Dialogue Essays]

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The Process of Nuclear Magnetic Resonance

- Introduction Nuclear magnetic resonance of proteins (protein NMR) (Wikipedia, 2014) is an important field of structural biology in which NMR spectroscopy is employed to get information about the structure of proteins and their Flexibility. The field was originated and pioneered by Richard R. Ernst and Kurt Wüthrich, and others. NMR measurements are composed of phases. In each phase a separate set of highly specialized techniques are used. First, the sample is prepared accurately. Second is measuring tools....   [tags: protein, molecules, signals]

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Description Of An Invisible Magnetic Force

- Referencing previous statements, when an individual finds art in something another views as "Ordinary" it is generally due to the concept of that particular individual noticing something the other may have missed, or perhaps each individual just retains a vastly differentiating appeal to artwork. So one must ask, what actually connects a viewer to a particular painting or sculpture. What pushes them towards a specific piece of artwork. It is basically as if an invisible magnetic force pulls the viewer towards the painting and a force field of the same nature prevents them from escaping....   [tags: Color, White, African American, Color theory]

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Magnetic Resonance Imaging Scanners

- Magnetic Resonance Imaging (MRI) Scanners: What you need to know about Magnetic Resonance Imaging (MRI) Scanners The first Magnetic Resonance Imaging Scanner examination was performed on a human being in the year 1997. Magnetic Resonance Imaging Scanners also known as MRI Scanners are used worldwide for the benefit of people who need the interior of their bodies observed by professionals.MRI Scanners can create images by converting mathematical date into an image that professionals will examine, and will then further explain the results to the patient....   [tags: interior, heart structures, ]

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The Functional Magnetic Resonance Imaging

- For countless years mankind has attempted to construct different ways to detect falsehoods. Being able to detect a lie is crucial in regards to the legal system, as it would play a pivotal role in creating different opportunities for innocence and exoneration. The use of lie detection technology would assist in anti-terrorist objectives, law enforcement, and protect the innocent. It would even be capable of finding the innocence of those in penitentiaries wrongly convicted. This new neuro-inflation phenomenon has the potential to impact the lives and futures of all people....   [tags: technology, brain, lying]

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Magnetic Bearings and Heat

- One of the main problems associated with the design and application of active magnetic bearings is excessive heat. Heat is generated by two primary mechanisms. The first heating source comes from eddy current loss. Eddy currents are electric currents driven within conductors by a dynamic magnetic field located in the conductor. Eddy current loss in a magnetic bearing are caused by the rate of change in the magnetic field. The relative motion creates a rotating flow of current inside the conductor, which leads to efficiency loss....   [tags: electric current, lubrication]

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Functional Magnetic Resonance Imaging

- Imagine that you have some rare disease, you have suddenly lost some of your fine motor control, you sometimes have bouts of unintentional movement, and you feel that you are not in control of your own body at times. You have no idea what is going on, your family is stunned, and the doctors are stumped. No one seems to have a firm understanding of how or why these things are happening to you. Your doctors recommend that you undergo a relatively new procedure called fMRI. This test indicates that you have an operable tumor pressing against your cerebellum....   [tags: Technology, Mapping the Brains Activity]

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Nuclear Magnetic Resonance Spectroscopy

- Nuclear Magnetic Resonance Spectroscopy and its Role in Coronary Artery Disease. The treatment of common ailments such as diabetes, cancer, heart disease, and hypertension influences all aspects of life. Virtually no possibility exists that someone in a person’s culture has not had experience or contact with one of these disease processes be it a friend, family member, teacher, or work associate. Cultural patterns and paradigms change with the advent of new tools, perspectives, and understanding of disease....   [tags: Medical Science]

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Nuclear Magnetic Resonance Spectroscopy

- Introduction The explosion of scientific knowledge and subsequent new technologies that allow health care practitioners to diagnose and treat disease amazes the mind and overwhelms even the most sarcastic naysayer. The treatment of common ailments such as diabetes, cancer, heart disease and hypertension impact all aspects of our lives. Virtually no possibility exist that someone in our culture has not had experience or contact with one of these disease processes be it a friend, family member, teacher or work associate....   [tags: Medical Science]

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Functional Magnetic Resonance Imaging

- Functional Magnetic Resonance Imaging (fMRI),which is one of the most exciting recent developments in biomedical magnetic resonance imaging, allows the non-invasive visualisation of human brain function(1). Functional MRI is a measurement technique based on ultrafast MR imaging sequences that are sensitive to the physiological changes of cerebral blood flow (CBF) and cerebral blood volume (CBV).These allow the researcher to measure changes in brain function typically via increases or decreases in blood oxygenation during the scanning(2)....   [tags: Technology ]

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Magnetic Research

- MAGNETIC SEARCH Proton precession magnetometer is used in finding objects which are buried, submerged or hidden from view. An object can be found directly where it is itself magnetic, or where it may displace material which is otherwise uniformly magnetic. In some cases an object may be found indirectly when it produces a magnetic anomaly as a consequence of it being buried or emplaced. Objects of search may involve a man-made iron or steel objects, an archaeological feature such as a brick, pottery or tomb or an intentionally buried magnet used for relocation purposes....   [tags: magnetism, pipeline, magnetometer]

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A Research On Stem And Set Fields

- Molly Wyatt WGST Final Project STEM and SET fields are traditionally male dominated and women often find them difficult to break into. STEM stands for science, technology, engineering, and math. These fields are often grouped together for studies. SET is the other acronym used and it stands for science, technology, and engineering. While progress has been made women are still significantly underrepresented. Technology, unlike the other STEM/SET fields, is filled with many more male employees especially when it comes to leadership positions....   [tags: Science, Technology, Mathematics, Field]

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The Church of St. Martin in the Fields

- ... Other than James Gibbs’ St. Martin’s-in the-Fields, the statue of Charles I is the only other item on the landscape of Charing Cross and Trafalgar Square that was there before 1800 and had survived entirely to the present day (Mace 26). From 1914 to 1927 Dick Shepard the Vicar during that time started programs for the area’s homeless through the church and deemed it the “Church of the Ever Open Door”. The church is widely famous for its work with homeless people through The Connection at St....   [tags: history and architecture, Trafalgar Square]

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The Killing Fields By Richard Nixon

- In the film, ‘The Killing Fields” all of the real events that took place, of which the film is based off, all make for an accurate representation. It makes for a haunting and woefully effecting film, which has a lot to say. As proven by the terrifying imagery and the bigger than life characters. I do believe that for the most part ‘The Killing Fields’ is a fairly accurate representation of the actual events. In both the film and in real life, it’s referenced that Richard Nixon did in fact order an incursion into Cambodia, which resulted with the unfortunate spark to the flame, in igniting the beginning war....   [tags: Khmer Rouge, Pol Pot, Dith Pran]

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The Social Sciences And Medical Fields

- While there has been increasing attention on the body as an area of study, many of the associated ethical debates have tended to focus on emerging topics such as reproductive technologies rather than the fundamentals of its theories and research. However, the very act of studying the body in itself raises ethical issues as well, as the process of theorizing bodily experiences and the approaches to researching them in both the social sciences and medical fields produce a range of ethical problems, while also being significant for critical sociological understandings of how this knowledge is produced more generally....   [tags: Sociology, Ethics, Scientific method]

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Strawberry Fields by Miriam Wells

- There has been a long standing debate between the socio-economic theories of capitalism and socialism. The current socio-economic system is capitalism but many feel it is not ideal due to the fact that it is based on making a profit. On the other hand, socialism is based on equality of all, which is enacted by paying all workers the same amount of money regardless of occupation. Miriam J. Wells is against capitalism and holds a socialist view point. According to Wells, politics shape the advantages and disadvantages that certain groups of people hold....   [tags: capitalism, socialism]

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The Coal Fields Of Colorado

- In the coal fields of Colorado, employers and employees rarely saw eye to eye, and conflicts were common. Like any explosive relationship, there were roots to the various conflicts between workers and companies. These conflicts can be linked to the uniquely Western identity of the Colorado coal fields. Like other Western areas, the coal fields attracted immigrants, and the cultures of those immigrants didn’t always match with those of mining companies. But the atmosphere of the camps also fostered conflict due to the more independent work culture of Western mining....   [tags: Culture, Cultural assimilation, 19th century]

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The Dangers of Electromagnetic Fields

- The dangers of the electromagnetic can be low on danger and high on danger. Depending on the amount of how much the body absorbs verifies the lethality of the EMFs. Humans are extremely sensitive to EMFs. Yes if a person absorbs too much energy it can lead potential to death, but if they absorb small portions it can lead can lead to nausea, paranoia, and many more small affects. The US National Institute for Occupational Safety and Health (NIOSH) has issued cautionary advisories on EMFs. Everyone is exposed to EMFs; they come in forms such as from power lines, basements, cell phones, or even x-rays and other medical equipment....   [tags: Health ]

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Four Fields of HRM Function

- 1.1 Background to Research One of the first explicit statements made on Human resource management was given by Michigan School (Fomburn et al, 1984) where they said that human resource systems and the organization structure should be managed in a way that is congruent with organizational strategy. Human resource management is a strategic approach of managing people in an organization. It is also sometimes considered synonymous to personnel management. Miller (1987) suggests that HRM is all about those decisions and actions concerning the employees at all levels and are related to the strategies that aim to gain competitive advantage....   [tags: Business Management]

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Bioengineering and Its Subsidiary Fields

- Bioengineering and the Flaws of Consequentialism Pierce College Abstract In 1973 the first bacteria were genetically modified. In 1974 mice were genetically modified. And in 1982 genetically modified bacteria capable of producing insulin were commercialized. Genetically modified food has been sold since 1994. In a similar time frame, the ideologies of stem cell research and therapeutic reproductive cloning have come to fruition. It is the aim of this paper to demonstrate through consequentialist ethical reasoning, particularly using the concepts of utilitarianism and relativism that no definitive judgment can be made on the morality and ethical correctness of bioengineering and its subsidiar...   [tags: Bacteria, Genetically Modified]

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The Killing Fields, an Injustice

- We live in a world where deaths of celebrities and government officials take front page news, and are supported by fundraisers, and memorials in the memory of these people. Not to mention the countless internet posts about them. Two million innocent people were tortured and killed in cold blood just as digital cameras were becoming a part of our everyday life. This is too recent to forget about the wrongdoings that these people were put through by their dictator, Pol Pot. This genocide shows some similarities to the South African Apartheid that segregated races for the belief that one race was superior to the others....   [tags: genocide, Pol Pot, Cambodia]

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The, Indiana, By Corn Fields

- I am twenty-one-year-old Kayla Lee Bunch from a small town known as Brookston, Indiana, surrounded by corn fields. I have a variety of personality traits including dependable, independent and responsible. I am also a well determined, hardworking person, yet a bold individual who is willing to speak out in what I believe in. I encourage for each individual to fight for what you desire and believe in, in order for others to know that you are a strong, intelligent person that sticks up for oneself....   [tags: Part-time, Full-time, Surgical technologist]

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Transcranial Magnetic Stimulation

- For the past few centuries western medicine has made significant improvements in medical technologies; however, as the pendulum swings we are obliged to remember that eastern medicine has been prevalent for numerous centuries. Eastern medicine includes many medical avenues that are slowly becoming more popularized in the western world. For example, I have noticed therapies such as acupuncture becoming much more accepted that in previous decades. Moreover, in the past year I have learned a great deal about the therapeutic effects of magnets, including transcranial magnetic stimulation (TMS) which is also known as repetitive transcranial magnetic stimulation (rTMS)....   [tags: Medicine]

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Magnetic Water and Treatment: Myth or Magic?

- It is important that everyone know of the need to improve our energy and water savings and assist in reducing the use of electricity, water, and non-renewable fuel sources. There are a number of non-chemical, non-mechanical water treatment technologies. Many of these are known by names such as electronic, magnetic, electrostatic, electromagnetic, and AC induction. The history of these devices goes back to at least 1952. Claims for and against the effectiveness of such systems have a long history....   [tags: Electromagnetic Water Treatment]

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The Magnetic Poles Of Our Moral Compass

- Since the beginning of times, man has had the need to find instruments that help him find direction. Initially, the study of astronomy helped sailors find their way through the sea. In the IXX century, a revolutionary invention gave man a mechanical tool that could allow them to do this in a more accurate manner: The compass, a device that uses a magnetized needle to point towards the geographic north, providing orientation than can help decide which direction to follow. In our everyday life, we have to make decisions that imply a more complex dimension than geographic orientation: We have to decide between the abstract paths of right and wrong....   [tags: Morality, Ethics, Moral, Human]

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Outline Of An Activity Using Magnetic Vocabulary

- Language: Students will be able to: • Discuss an activity using magnetic vocabulary. • Read step by step directions. • Write observation in their journal. Content: Students will be able to: • Preform a controlled investigation into magnetism. • Compare experimental data. • Record experimental results. LEARNING STRATEGIES: Journaling, pictures, brainstorming using a Mind Map, small group activity, prediction organizer, Choral reading instructions, Demonstration, Step-by-Step organizer, Reporter/Reader/Researcher, Flashcards KEY VOCABULARY: Predict; iron; extract (I’m assuming magnet, attract, and repel are prior key vocabulary since they are midway through this unit on magnets.) MATE...   [tags: Scientific method, Hypothesis, Prediction]

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Paddy Fields in Nelore

- The Nellore district can broadly divided into two natural divisions from North to South. The Eastern part of the district that joins the coastal belt is fairly fertile with large tracts of paddy cultivating areas and the coast is fringed with large tracks of shrub jungle interspersed with shrub jungles diversified with rocky hills and stony plains. Statistically speaking, in the district the number of agricultural Laborers are 541885 with 390715 agricultural holdings in which the holdings of SCs are 84738 and STs are 21073....   [tags: farming, agriculture, crops]

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Criminal Justice Fields

- Criminal Justice has numerous avenues in which to follow so making the choice of what specific field to choose a difficult decision. This is not a choice that should be taken lightly nor in haste but one that should be contemplated and examined closely. I have done an enormous amount of research on many of the fields of criminal justice narrowing it down to three: Forensics, Probation/ Parole and Homeland Security. For me personally, these are the best three choices given their potential for being challenging....   [tags: Criminal Justice]

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The Role Of Accounting And Finance Career Fields

- 1. My major now is accounting, but I am also considering to major in finance as well, therefore I am currently considering a job in both the accounting and the finance field. 2. 5 Goals Goal 1: Learn more about the accounting and finance career fields Talking to my professors, advisors, and people in the accounting and finance field at least two to three times a month, and research information about the two career fields can help me accomplish the goal of learning more about the fields that I am interesting in pursuing in the future....   [tags: High school, Educational years, Field]

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Why Are Fields Important For Bourdieu.practices And Methods?

- Fields: “In short, being the product of a particular class of objective regularities, the habitus tends to generate all the reasonable ', 'common: on-sense ', behaviours (and only these) which are possible within the limits of these regularities, and which are likely to be positively sanctioned because they are objectively adjusted to the logic characteristic of a particular field, whose objective future they anticipate”. (Bourdieu, 1990b:55-56) The significance of fields is very important for Bourdieu.Practices and methods are always produced in specified circumstances.So they are not only habitual products; they are the interaction products of habits and predispositions to this specific...   [tags: Sociology, Pierre Bourdieu, Field]

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Multi-Disciplinary Aspects in the Fields of Engineering.

- The term multi-disciplinary can be defined as the study of a single major topic with several branches of other disciplines. Nowadays, due to highly mobile and dissimilar society, profession changes are in routine. A number of studies have indicated that, after 10 years of work, perhaps as many as 80% of graduates have jobs with little or no direct relationship to their undergraduate majors [1]. Through the multidisciplinary studies program, students have the freedom to direct their studies in any one of several directions, gaining the versatility and flexibility so important in a changing environment [1]....   [tags: Majors, graduates, fine arts]

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Taking Responsibility: Women in STEM Fields

- Women are Still a Minority in STEM Majors Today’s college students have the opportunity and freedom to choose their major and their career path. Many factors influence the decision of a college student’s career paths including background, general interests, personal strengths, time commitment, and job outlook. Although many important decisions are made in college, one of the most important is the choice of major and career track. Out of hundreds of majors the science and engineering fields are under-represented by women....   [tags: Lona Whitmarsh, feminism, gender issues]

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The At The Middle Of Open Fields And Green Pastures

- The small building located at the end of the road, in the middle of open fields and green pastures, gave me a sense of familiarity as I think back to my days as a child when my mother would take me to a little white church in my hometown in Ecuador. As I drive up the dirt road into the mostly vacant parking lot, there are a couple of the families getting ready to enter the church with their bibles in hand. The second I open the door of the church so many smiling faces head over to me and gave me a warm hug....   [tags: Sun, Light]

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Women Are Grossly Underrepresented Of Scientific Fields

- Women are grossly underrepresented in scientific fields. Why is that. What can women contribute to science, and what can people do to help them. There are many reasons women might not choose a science-related career, but science needs them. The increased involvement of women in science can add a new level of diversity to scientific research, since women, having slightly different brains, tend to lean toward more qualitative research styles, and do more interdisciplinary research, the type of research they believe to be better at solving society’s problems....   [tags: Science, Scientific method, Woman]

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The Entertainment Fields

- The Entertainment Fields In this literature review, I wil attempt to explain the wealth of opportunities available to technical communicators in the electronics entertainment industry due to the changing nature of video game the technical communication and electronics entertainment fields. I believe an abundance of opportunities exist for technical communicators in the video game industry because the industry itself is stil rather young and poselopingnorms. Documentation and information organization are an integral part of video ga me construction....   [tags: Technology Video Games Papers]

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Fields Of Psychology

- Psychology (Ph.D. Code: PSY) Fields of study: Clinical, cognitive, and social psychology; neuroscience and behavior; visual perception. The program offers doctoral study for students who intend to become psychological scientists or scientist-practitioners. Students who plan to terminate their studies with the master's degree are not encouraged to apply. Admission is not limited to students with undergraduate backgrounds in psychology. Theory, method, and research experience in a number of areas of psychological science are emphasized....   [tags: essays research papers]

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Magnetic Anisotropy Of Fine Particles

- "Magnetic Anisotropy Of Fine Particles" In nature, single domain particles are magnetized to saturation, where the magnetization has an easy axis, or several easy axes, along which it prefers to lie. In this case the total internal energy is minimum. Rotation of the magnetization vector away from the easy axis is possible only by applying an external magnetic field. This phenomenon is called magnetic anisotropy. Thus, the term magnetic anisotropy describe the dependence of the internal energy on the direction of magnetization of the particle....   [tags: essays research papers]

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The Implementation of Magnetic Access Control Card Security Systems

- ... There have been numerous security breach reports of the current system and the breaches were attributed to the weaknesses of the current system. 3.1. Research Aims and Objectives The aim of this research project is to investigate the implementation of magnetic card access control security system within the SCOT community. Other objectives of this research project are as follows:  Investigate the weaknesses of the existing system  Investigate magnetic card access control system with emphasis on the magnetic access control system usage and application in higher institutions of education  Gather the opinion of SCOT community comprising of lecturers, students, staff and security person...   [tags: ]

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Marketing Plan for Bio-magnetic Wrist Watch

- ... We can manufacture our product on the basis of bio-magnetic therapy which is very popular today. The specification of our product is given below: Product Profile: Product Name: Bio-Magnetic Wrist Watch Product Specifications: Material: Pure TA2 Titanium, Pure Stainless Steel Bio Elements: Neodymium magnet super gauss (8000) Craft-work technology: Shiny finishes polishing, Mirror polishing Colours: Black, Silver Quality standard: According to ISO Standard Unique: Excellent Quality and Reasonable Price combine Bio and fashion together, water proof Functions: Joint and Muscle pain, Blood Circulation, Increase Body Metabolism, Increase Energy Level, Control Diabetes and H...   [tags: marketing, diabetes, fatigue, massage]

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