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Topic: Composite particle


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In the News (Sat 20 Apr 19)

  
  Composite particle dispersions - Patent 4997864
Composite particles of these types may find applications in a wide variety of fields, one example of which is in the field of paints and other liquid coating compositions where the core particles, i.e.
Core-shell particles have been made in the past by polymerising monomer in the presence of already-formed particles, where the pre-formed particles constitute the core, and the polymerisation process produces polymer which is located around the surfaces of the core particles with the intention of ultimately encapsulating the core particles.
Particles with surfaces to meet this condition can be selected by considering surface tension data and by ensuring that the polymer particle surface has a surface tension nearer to the surface tension of the water or aqueous solution compared to the surface tension for the core particle surface.
www.freepatentsonline.com /4997864.html   (10972 words)

  
  Subatomic particle - Wikipedia, the free encyclopedia
Particle physics and nuclear physics concern themselves with the study of these particles, their interactions, and matter made up of them which do not aggregate into atoms.
These particles include atomic constituents such as electrons, protons, and neutrons (protons and neutrons are actually composite particles, made up of quarks), as well as other particles such as photons and neutrinos which are produced copiously in the sun.
Among the standard model particles the existence of the Higgs boson remains to be verified—this is seen as the primary physics goal of the accelerator called the Large Hadron Collider in CERN.
en.wikipedia.org /wiki/Subatomic_particle   (1448 words)

  
 particle physics - Hutchinson encyclopedia article about particle physics
Subatomic particles include the elementary particles (quarks, leptons, and gauge bosons), which are indivisible, so far as is known, and so may be considered the fundamental units of matter;; and the hadrons (baryons, such as the proton and neutron, and mesons), which are composite particles, made up of two or three quarks.
The electromagnetic force (1) acts between all particles with electric charge, and is related to the exchange between these particles of gauge bosons called photons, packets of electromagnetic radiation.
The unknown particle, which the researchers classified as X(3872), was detected in the decay products of beauty meson particles; it weighed as much as a single atom of helium and lasted a billionth of a trillionth of a second, an unusually long lifetime for a subatomic particle of this size.
encyclopedia.farlex.com /particle+physics   (882 words)

  
 Composite particle for lithium rechargeable battery, manufacturing method of the same, and lithium rechargeable battery ...
A composite particle for a lithium rechargeable battery is contained in at least one of a positive electrode and a negative electrode of the lithium rechargeable battery that includes the positive electrode, the negative electrode, a separator, and non-aqueous electrolytic solution.
The composite particle is a hollow body formed of a cavity capable of retaining the non-aqueous electrolytic solution and an outer wall including the active material and the conductive agent.
The composite particle for the lithium rechargeable battery of the present invention is a hollow body including the conductive agent around the active material, and the hollow body is formed by combining the active material and the conductive agent undergoing no expansion.
www.freshpatents.com /Composite-particle-for-lithium-rechargeable-battery-manufacturing-method-of-the-same-and-lithium-rechargeable-battery-using-the-same-dt20070104ptan20070003835.php   (1989 words)

  
 Composite particle with a carbodimide resin layer and process for producing the same invention
The composite particle according to claim 1, characterized in that the bond of the functional group of the above-described base particle (A) and the carbodiimide group of the carbodiimide resin (B) is at least one kind selected from a carbamoyl amide bond, an isourea bond, a guanidine bond or a thiourea bond.
The composite particle according to claim 1, characterized in that the functional group of the above-described base particle (A) is at least one active hydrogen group selected from a hydroxyl group, a carboxyl group, an amino group or a thiol group.
The method for producing the composite particle according to claim 9, characterized in the first step that the base particle (A) is immersed in a solution which is obtained by dissolving the carbodiimide resin (B) in at least one kind of a solvent selected from an organic solvent or water.
www.freshpatents.com /Composite-particle-with-a-carbodimide-resin-layer-and-process-for-producing-the-same-dt20051208ptan20050271875.php?type=claims   (616 words)

  
 Spartanburg SC | GoUpstate.com | Spartanburg Herald-Journal
In particle physics, fermions are particles with half-integer spin, such as protons and electrons.
The number of bosons within a composite particle has no effect on whether it is a boson or a fermion.
Fermionic or bosonic behavior of a composite particle (or system) is only seen at large (compared to size of the system) distance.
www.goupstate.com /apps/pbcs.dll/section?category=NEWS&template=wiki&text=fermion   (678 words)

  
 Composite particle with a carbodimide resin layer and process for producing the same invention
A composite particle that can be easily converted to cured particle or half cured particle by the use of carbodiimide resin without changing of the configuration of matrix particle of, for example.
[0009] When hardened particles are to be produced, most of these approaches incorporate a crosslinkable vinyl-based monomer or polymer to improve resistance to heat and chemicals, or incorporate a crosslinkable monomer or polymer other than a vinyl-based one, e.g., an epoxy resin or the like, to improve resistance to heat and solvents.
[0019] The fifth aspect of the present invention provides the composite particle of the first aspect, characterized by that the functional group of the base particle (A) is at least one type of an active hydrogen group selected from the group consisting of hydroxyl, carboxyl, amino and thiol groups.
www.freshpatents.com /Composite-particle-with-a-carbodimide-resin-layer-and-process-for-producing-the-same-dt20051208ptan20050271875.php   (887 words)

  
 Problem Set 5
Q: A particle of rest mass m and kinetic energy 2 m c^2 strikes and sticks to a stationary particle of rest mass 2m.
Q: (a) A photon of energy E collides with a stationary particle of rest mass m and is absorbed.
(b) A particle of rest mass mo moving at a speed of 4/5c collides with a similar particle at rest and forms a composite particle.
world.std.com /~sweetser/quaternions/relativity/ps5/ps5.html   (1316 words)

  
 Proton-Neutron Substructure, Baryon Configuration
Before the composition of any composite particle could be determined, it is necessary to first ascertain the minimum requirements of the particle's substructure, while maintaining consideration of all properties exhibited by, or associated with the subject particle.
If the composite particle is unstable such as the free-state neutron that decays into smaller composite particles, it must contain a group of sub-particles that support the decay process into those particles.
For example, the R1 consists of an A and C particle, the R2 consists of a B and C particle, the R3 is an A-B unit, the R7 is an A-C-B unit, and the R18 is a B-C-C-A unit.
www.2xtreme.net /~boris/proton_neutron_substructure.htm   (3161 words)

  
 Search for Rare Particle Decay Comes Up Short
The B particle, for example, is a member of a class of composite particles known as “mesons,” which consist of one quark — the “building block” of all other particles and one antiquark.
The detector is positioned around one section of a very large particle accelerator, where a beam of electrons and a beam of anti-electrons — i.e.
These particles pass into the BABAR detector, which records their trajectories, energies, and electric charge.
www.physorg.com /news73669760.html   (571 words)

  
 ScienceDaily: Semiconducting Material May Have The Right Stuff To Develop Spintronic Devices
UB Engineer Discovers Carbon Composite Is A Semiconductor (March 6, 1998) -- A University at Buffalo engineer has made the first observation of semiconducting behavior in a carbon composite material, a finding that could revolutionize the fields of "smart" structures and...
Nanoparticle -- A nanoparticle is a microscopic particle whose size is measured in nanometres (nm).
Proton -- The proton is a subatomic particle with an electric charge of one positive fundamental unit (1.602 × 10−19 coulomb) and a mass of 938.3 MeV/c2 (1.6726 × 10−27 kg), or about 1836 times the mass...
www.sciencedaily.com /releases/2002/05/020517075731.htm   (2039 words)

  
 Nanotechnology Glossary N
If the nanotube is calibrated (i.e., its spring constant known), it is possible to measure the mass of the attached particle." A nanobalance "could be useful for determining the mass of other objects on the femtogram to picogram size range." See Weighing The Very Small.
Intrinsic differences in reflectivity between the metal segments allow individual particles to be identified by conventional optical microscopy.
Nanohorns: One of the SWNT (single walled carbon nanotube) types, with an irregular horn-like shape, which may be a critical component of a new generation of fuel cells.
www.nanotech-now.com /nanotechnology-glossary-N.htm   (3544 words)

  
 SBF Glossary: ET to E3
To take the example of Japanese, particles are attached to words to indicate case distinctions and something of the idea in the the/a distinction (-wa/-ga, but the correspondence is imperfect).
One could regard the particle -no as a postposition equivalent to the English preposition of, one could consider it as a systematic genitive ending, or one might consider it as an enclitic.
A sphere in reciprocal space, of radius equal to the magnitude of the wave vector of a diffracting probe particle.
www.plexoft.com /SBF/E06.html   (14024 words)

  
 Nanoshell   (Site not responding. Last check: 2007-09-21)
They're but a tiny speck, existing in a variety of forms: particles, tubes, shells, even a soccerball-like shape.
By tuning nanoshell resonances into the near infrared region of the spectrum, the physiological "water window" can be accessed, where blood is essentially transparent and light penetrates maximally...
By conjugating antibodies or peptides to the nanoshell surfaces, binding of nanoshells can be targeted to cancerous cells, and subsequent exposure to near infrared light results in specific and...
www.nanosizeit.com /nanoshell   (868 words)

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