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Showing 25 to 36 of 59 entries
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An exact magnetic-moment invariant of charged-particle gyromotion.

Physical review letters

Qin H, Davidson RC.
PMID: 16606193
Phys Rev Lett. 2006 Mar 03;96(8):085003. doi: 10.1103/PhysRevLett.96.085003. Epub 2006 Mar 03.

For the motion of a charged particle in a uniform, time-dependent axial magnetic field B(t)e(z), it is shown that there is an exact magnetic-moment invariant of the particle dynamics M, to which the adiabatic magnetic-moment invariant mu = mv2...

Field theory and weak Euler-Lagrange equation for classical particle-field systems.

Physical review. E, Statistical, nonlinear, and soft matter physics

Qin H, Burby JW, Davidson RC.
PMID: 25375609
Phys Rev E Stat Nonlin Soft Matter Phys. 2014 Oct;90(4):043102. doi: 10.1103/PhysRevE.90.043102. Epub 2014 Oct 06.

It is commonly believed as a fundamental principle that energy-momentum conservation of a physical system is the result of space-time symmetry. However, for classical particle-field systems, e.g., charged particles interacting through self-consistent electromagnetic or electrostatic fields, such a connection...

Centroid and envelope dynamics of high-intensity charged-particle beams in an external focusing lattice and oscillating wobbler.

Physical review letters

Qin H, Davidson RC, Logan BG.
PMID: 20867386
Phys Rev Lett. 2010 Jun 25;104(25):254801. doi: 10.1103/PhysRevLett.104.254801. Epub 2010 Jun 22.

The centroid and envelope dynamics of a high-intensity charged-particle beam are investigated as a beam smoothing technique to achieve uniform illumination over a suitably chosen region of the target for applications to ion-beam-driven high energy density physics and heavy...

Stopping for death.

The virtual mentor : VM

Davidson RC.
PMID: 23272819
Virtual Mentor. 2001 Feb 01;3(2). doi: 10.1001/virtualmentor.2001.3.2.oafr1-0102.

No abstract available.

Kinetic stability properties of nonrelativistic non-neutral electron flow in a planar diode with applied magnetic field.

Physical review. A, General physics

Davidson RC, Uhm HS.
PMID: 9896524
Phys Rev A Gen Phys. 1985 Dec;32(6):3554-3565. doi: 10.1103/physreva.32.3554.

No abstract available.

Nonlinear traveling waves in a helical wiggler free-electron laser.

Physical review. A, General physics

Davidson RC, Johnston GL, Sen A.
PMID: 9897261
Phys Rev A Gen Phys. 1986 Jul;34(1):392-400. doi: 10.1103/physreva.34.392.

No abstract available.

Resonant operation of the cross-field free-electron laser: Kinetic and fluid equilibria.

Physical review. A, General physics

Bekefi G, Davidson RC, Hartemann F, Johnston GL.
PMID: 9900506
Phys Rev A Gen Phys. 1988 Aug 01;38(3):1309-1318. doi: 10.1103/physreva.38.1309.

No abstract available.

Chaotic electron dynamics for relativistic-electron-beam propagation through a planar wiggler magnetic field.

Physical review. A, Atomic, molecular, and optical physics

Chen C, Davidson RC.
PMID: 9904624
Phys Rev A. 1990 Oct 15;42(8):5041-5044. doi: 10.1103/physreva.42.5041.

No abstract available.

Nonlinear properties of the Kapchinskij-Vladimirskij equilibrium and envelope equation for an intense charged-particle beam in a periodic focusing field.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Chen C, Davidson RC.
PMID: 9961893
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1994 Jun;49(6):5679-5687. doi: 10.1103/physreve.49.5679.

No abstract available.

Nutrient Acquisition and Population Growth of a Mixotrophic Alga in Axenic and Bacterized Cultures.

Microbial ecology

Sanders RW, Caron DA, Davidson JM, Dennett MR, Moran DM.
PMID: 12024234
Microb Ecol. 2001 Dec;42(4):513-523. doi: 10.1007/s00248-001-1024-6.

Axenic growth of a mixotrophic alga, Ochromonas sp., was compared in several inorganic and organic media, and in the presence of live bacteria under nutrient-replete and low-nutrient conditions. Axenic growth in the light was negligible in inorganic media with...

Feline ocular toxoplasmosis.

Veterinary ophthalmology

Davidson MG, English RV.
PMID: 11397213
Vet Ophthalmol. 1998;1(2):71-80. doi: 10.1046/j.1463-5224.1998.00033.x.

Ocular infection with Toxoplasma gondii is a well-recognized and important clinical entity in many animal species. In the cat, ocular toxoplasmosis is commonly associated with systemic infection, yet its role in causing anterior uveitis in an otherwise healthy cat...

Angioinvasive pulmonary carcinoma with posterior segment metastasis in four cats.

Veterinary ophthalmology

Cassotis NJ, Dubielzig RR, Gilger BC, Davidson MG.
PMID: 11397254
Vet Ophthalmol. 1999;2(2):125-131. doi: 10.1046/j.1463-5224.1999.00068.x.

The objective of the research was to characterize the clinical, fluorescein angiographic, pathologic and microscopic features of feline pulmonary carcinoma with ocular metastasis that resulted in ischemic chorioretinopathy. Four cats with confirmed or presumed primary pulmonary neoplasia with posterior...

Showing 25 to 36 of 59 entries