An analysis of guardrail and median barrier accidents using the Longitudinal Barrier Special Studies (LBSS) file. Volume I: final report.

Federal Highway Administration, Office of Safety and Traffic Operations Research and Development, McLean, Va.

A 1987 Ford Escort into a 50% left offset barrier in support of CRASH3 damage algorithm reformulation. Final report.

National Highway Traffic Safety Administration, Washington, D.C.

Side impact protection in production vehicles: MDB-to-car side impact test of a 26 [degree] crabbed moving deformable barrier to a 1987 Nissan Sentra at 33.5 mph. Test report.

Mode of access: Internet.

Harmonization of MDB - MDB-to-car-side impact test of a 26 degree crabbed moving deformable barrier to a 1985 Chevrolet Celebrity at 33.1 mph. Test report.

Mode of access: Internet.

Box-beam terminals for restricted conditions. Final report.

Federal Highway Administration, Office of Research, Development, and Technology, Washington, D.C.

Vehicle barrier impact testing on a 1987 Subaru XT 2-door coupe with Hybrid III dummies. Test report.

Mode of access: Internet.

Vehicle barrier impact testing with Hybrid III dummies in a 1987 Ford Escort 5-door hatchback. Test report.

Mode of access: Internet.

Center barrier visibility study. Final report.

Federal Highway Administration, Washington, D.C.

Roadside barrier effectiveness - noise abatement program. Final report.

National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

An in-situ permeable reactive barrier for the treatment of hexavalent chromium and trichloroethylene in ground water /

"Project Officer, Robert W. Puls, Subsurface Protection and Remediation Division."

Vehicle barrier impact testing with Hybrid III dummies in a 1987 Toyota Camry 4-door sedan. Test report.

Mode of access: Internet.

Vehicle barrier impact testing with Hybrid III dummies in a 1987 Chrysler Lebaron 2-door coupe. Test report.

Mode of access: Internet.

Performance of 1/3-scale model precast concrete beam-column connections subjected to cyclic inelastic loads : report no. 4 /

Mode of access: Internet.

Orientation of biological cells using plane-polarized gaussian beam optical tweezers

Optical tweezers are widely used for the manipulation of cells and their internal structures. However, the degree of manipulation possible is limited by poor control over the orientation of the trapped cells. We show that it is possible to controllably align or rotate disc-shaped cells-chloroplasts of Spinacia oleracea-in a plane-polarized Gaussian beam trap, using optical torques resulting predominantly from circular polarization induced in the transmitted beam by the non-spherical shape of the cells.

Modal characteristics of a flexible beam with multiple distributed actuators

A flexible structure with surface-bonded piezoceramic patches is modelled using Timoshenko beam theory. Exact mode shapes and natural frequencies associated with the flexural motion are computed for various piezoceramic distributed actuator arrangements. The effects of patch placement and of shear on the modal characteristics are demonstrated using a cantilevered beam as an example. Perfect bonding of the piezoceramic to the beam substructure is assumed, and for the purposes of this paper only passive piezoceramic properties are considered. The modelling technique and results obtained in a closed form are intended to assist investigations into the modelling and control of active structures with surface-bonded piezoceramic actuators. (C) 2003 Elsevier Science Ltd. All rights reserved.