Moissis, A.A., and M. Zahn. Boundary Value Problems in Electrofluidized and Magnetically Stabilized Beds, Chemical Engineering Communications 67, 181-204, 1988
... where cf>s denotes the particle sphericity and Ilt the effective fluid viscosity. Boundary condition (22) combined with the differential Eq. (26) allows numerical integration backwards from x = L, where cf>(x = L) = 1. For the modest electric fields used in our experiments (y=eo£UpsgL«I) Zahn and Rh ...
... where cf>s denotes the particle sphericity and Ilt the effective fluid viscosity. Boundary condition (22) combined with the differential Eq. (26) allows numerical integration backwards from x = L, where cf>(x = L) = 1. For the modest electric fields used in our experiments (y=eo£UpsgL«I) Zahn and Rh ...
The Little Book of String Theory (Science Essentials)
... What experimentalists will look for is the rare event where a collision produces an extremely massive, unstable particle. One such particle—still hypothetical—is called the Higgs boson, and it is believed to be responsible for the mass of the electron. Supersymmetry predicts many other particles, an ...
... What experimentalists will look for is the rare event where a collision produces an extremely massive, unstable particle. One such particle—still hypothetical—is called the Higgs boson, and it is believed to be responsible for the mass of the electron. Supersymmetry predicts many other particles, an ...
Worksheet 1.1 Finding the Ionization Energy of H
... proton is about 1.20x10–15 m, which is much, much smaller! To give you some idea, imagine that the atom were the size of the head of a pin. Put it in the middle of a football or soccer field. The electron would then be a speck of dust on the sidelines of the field. Now take out everything else and j ...
... proton is about 1.20x10–15 m, which is much, much smaller! To give you some idea, imagine that the atom were the size of the head of a pin. Put it in the middle of a football or soccer field. The electron would then be a speck of dust on the sidelines of the field. Now take out everything else and j ...
Stage 2 Physics Subject Outline for teaching in 2017
... A vast amount of information is available on a wide range of physics-related topics, and many means exist for obtaining that information. Students have opportunities to become proficient in a range of techniques for obtaining and evaluating information. In investigations in physics it is important t ...
... A vast amount of information is available on a wide range of physics-related topics, and many means exist for obtaining that information. Students have opportunities to become proficient in a range of techniques for obtaining and evaluating information. In investigations in physics it is important t ...
Beyond the Standard Model
... physics beyond the Standard Model. Although such ideas often have a finite life-time, there are many that have been around for a decade or more, and are likely to play an important rôle in particle physics at least for another decade. The emphasis is on those ideas that are likely to survive for a ...
... physics beyond the Standard Model. Although such ideas often have a finite life-time, there are many that have been around for a decade or more, and are likely to play an important rôle in particle physics at least for another decade. The emphasis is on those ideas that are likely to survive for a ...
Optimal tuning of lasing modes through collective particle resonance
... issues in the contemporary optical physics and quantum electronics community, with applications ranging from frequency stabilization of semiconductor diode lasers to environmental sensing by trace absorption detection in compact, integrated structures.2 Of particular interest are small optical reson ...
... issues in the contemporary optical physics and quantum electronics community, with applications ranging from frequency stabilization of semiconductor diode lasers to environmental sensing by trace absorption detection in compact, integrated structures.2 Of particular interest are small optical reson ...
Mechanics 3 – Kinetics: A Level Maths Tutor
... mass, gravitational field strength(g) and the vertical distance the particle is above a fixed ...
... mass, gravitational field strength(g) and the vertical distance the particle is above a fixed ...
Delcourt, DC and J.-A. Sauvaud, Populating of cusp and
... The importance of this structure for energetic particle confinement in the magnetosphere was first time considered by Antonova and Shabansky (1968) using a simple two-dipole geomagnetic field approximation. They noted that a magnetic field strength maximum between the two off-equatorial minima serv ...
... The importance of this structure for energetic particle confinement in the magnetosphere was first time considered by Antonova and Shabansky (1968) using a simple two-dipole geomagnetic field approximation. They noted that a magnetic field strength maximum between the two off-equatorial minima serv ...
Electroweak Precision Observables and Effective
... a further complication, we will generalize our studies to an extended gauge sector, which fits that one of the Standard model at low energies. The gauge fixing will be treated in a covariant way. Therefore, one has to extend the class of Rξ gauges in two ways: First, the effects of the compactified ...
... a further complication, we will generalize our studies to an extended gauge sector, which fits that one of the Standard model at low energies. The gauge fixing will be treated in a covariant way. Therefore, one has to extend the class of Rξ gauges in two ways: First, the effects of the compactified ...
Stability of Matter
... electrons are elementary particles and are modeled as point-like particles in the physical theories, the nuclei are known to have sizes of order 1f m = 10−15 m. It is a fact of Nature that, on the atomic length scale, the only relevant of the four fundamental forces is the electromagnetic force.2 Wh ...
... electrons are elementary particles and are modeled as point-like particles in the physical theories, the nuclei are known to have sizes of order 1f m = 10−15 m. It is a fact of Nature that, on the atomic length scale, the only relevant of the four fundamental forces is the electromagnetic force.2 Wh ...
Poetry of Physics and the Physics of Poetry
... the significance of this information. These two activities are by no means independent of each other. One requires a worldview to acquire new knowledge and vice versa one needs knowledge with which to create a worldview. But how does this process begin? Which comes first, the knowledge or the worldv ...
... the significance of this information. These two activities are by no means independent of each other. One requires a worldview to acquire new knowledge and vice versa one needs knowledge with which to create a worldview. But how does this process begin? Which comes first, the knowledge or the worldv ...
The Quantum Hall Effect: Novel Excitations and Broken Symmetries
... In the so-called integer quantum Hall effect (IQHE) discovered by von Klitzing in 1980, the quantum number ν is a simple integer with a precision of about 10−10 and an absolute accuracy of about 10−8 (both being limited by our ability to do resistance metrology). In 1982, Tsui, Störmer and Gossard ...
... In the so-called integer quantum Hall effect (IQHE) discovered by von Klitzing in 1980, the quantum number ν is a simple integer with a precision of about 10−10 and an absolute accuracy of about 10−8 (both being limited by our ability to do resistance metrology). In 1982, Tsui, Störmer and Gossard ...
Particle-in-Cell Algorithms for Plasma Simulations on Heterogeneous Architectures Xavier Sáez Pous
... During the last two decades, High-Performance Computing (HPC) has grown rapidly in performance by improving single-core processors at the cost of a similar growth in power consumption. The single-core processor improvement has led many scientists to exploit mainly the process level parallelism in th ...
... During the last two decades, High-Performance Computing (HPC) has grown rapidly in performance by improving single-core processors at the cost of a similar growth in power consumption. The single-core processor improvement has led many scientists to exploit mainly the process level parallelism in th ...
Electrostatics Problems
... charges attract each other. However, we were also told that the balls could also have no charge (i.e. neutral charge). If an object with a neutral charge is brought close to a charged object, they will always attract each other. This is due to induction – the charged object will induce the electrons ...
... charges attract each other. However, we were also told that the balls could also have no charge (i.e. neutral charge). If an object with a neutral charge is brought close to a charged object, they will always attract each other. This is due to induction – the charged object will induce the electrons ...
Elementary particle
In particle physics, an elementary particle or fundamental particle is a particle whose substructure is unknown, thus it is unknown whether it is composed of other particles. Known elementary particles include the fundamental fermions (quarks, leptons, antiquarks, and antileptons), which generally are ""matter particles"" and ""antimatter particles"", as well as the fundamental bosons (gauge bosons and Higgs boson), which generally are ""force particles"" that mediate interactions among fermions. A particle containing two or more elementary particles is a composite particle.Everyday matter is composed of atoms, once presumed to be matter's elementary particles—atom meaning ""indivisible"" in Greek—although the atom's existence remained controversial until about 1910, as some leading physicists regarded molecules as mathematical illusions, and matter as ultimately composed of energy. Soon, subatomic constituents of the atom were identified. As the 1930s opened, the electron and the proton had been observed, along with the photon, the particle of electromagnetic radiation. At that time, the recent advent of quantum mechanics was radically altering the conception of particles, as a single particle could seemingly span a field as would a wave, a paradox still eluding satisfactory explanation.Via quantum theory, protons and neutrons were found to contain quarks—up quarks and down quarks—now considered elementary particles. And within a molecule, the electron's three degrees of freedom (charge, spin, orbital) can separate via wavefunction into three quasiparticles (holon, spinon, orbiton). Yet a free electron—which, not orbiting an atomic nucleus, lacks orbital motion—appears unsplittable and remains regarded as an elementary particle.Around 1980, an elementary particle's status as indeed elementary—an ultimate constituent of substance—was mostly discarded for a more practical outlook, embodied in particle physics' Standard Model, science's most experimentally successful theory. Many elaborations upon and theories beyond the Standard Model, including the extremely popular supersymmetry, double the number of elementary particles by hypothesizing that each known particle associates with a ""shadow"" partner far more massive, although all such superpartners remain undiscovered. Meanwhile, an elementary boson mediating gravitation—the graviton—remains hypothetical.