Results 61 to 70 of about 35,968 (203)

Performance of graphite fiber-reinforced polyimide composites in self-aligning plain bearings to 315 C [PDF]

A 50/50 (weight percent) composite of graphite fibers and polyimide was studied in self-aligning plain bearings oscillating + or - 15 degrees at 1 hz. The friction coefficient was 0.15 + or - 0.05 at 250 C, and 0.05 + or - 0.02 at 315 C.
Jacobson, T. P., Sliney, H. E.
core   +1 more source

Type IV High-Pressure Composite Pressure Vessels for Fire Fighting Equipment: A Comprehensive Review and Market Assessment

Fire
Type IV composite overwrapped pressure vessels—characterized by a polymer liner fully wrapped in fiber-reinforced polymer—are emerging as lightweight, corrosion-proof alternatives to traditional metal cylinders in fire safety applications.
Krisztián Kun, Dávid István Kis, Caizhi Zhang   +2 more
doaj   +1 more source

Effect of using different base materials on microleakage of class V restorations

Acta Odontologica Turcica, 2017
Objective: The aim of this in vitro study was to evaluate and compare the effect of using different base materials on microleakage of class V restorations.
İhsan Yıkılgan, Sinem Akgül, Aslı Kuşoğlu, Oya Bala, Hüma Ömürlü, Mehmet Emin Türköz   +5 more
doaj   +1 more source

Cyclic hot firing results of tungsten-wire-reinforced, copper-lined thrust chambers [PDF]

An advanced thrust liner material for potential long life reusable rocket engines is described. This liner material was produced with the intent of improving the reusable life of high pressure thrust chambers by strengthening the chamber in the hoop ...
Jankovsky, Robert S., Kazaroff, John M.
core   +1 more source

PMAS integral field spectroscopy of luminous infrared galaxies. I.- The atlas [PDF]

, 2009
In this paper we present PMAS optical (3800-7200A) IFS of the northern hemisphere portion of a volume-limited sample of 11 LIRGs. The PMAS observations typically cover the central ~5kpc and are complemented with HST/NICMOS images.
A. Alonso-Herrero, A. Labiano, A. Monreal-Ibero, Alonso-Herrero, Alonso-Herrero, Alonso-Herrero, Alonso-Herrero, Armus, Arribas, Arribas, Arribas, Baldwin, Bedregal, Bell, Bingham, Caputi, Chen, Colina, Daigle, Dasyra, Davies, Dopita, Díaz-Santos, Eisenhauer, Elbaz, Falcón-Barroso, Farrah, Förster-Schreiber, García-Marín, García-Marín, Genzel, Genzel, Genzel, Graciá-Carpio, Hattori, Heckman, Heckman, Hinz, J. Alfonso-Garzón, Kauffmann, Keel, Kennicutt, Kewley, Kewley, Kewley, Kim, Kim, L. Colina, Law, LeFevre, Lípari, Lípari, M. García-Marín, Marcillac, Monreal-Ibero, Moustakas, Murphy, Márquez, Márquez, Onken, Papovich, Puech, Pérez-González, Reunanen, Reunanen, Rieke, Roth, Rupke, S. Arribas, Sanders, Sanders, Sanders, Sarzi, Shier, Smith, Soifer, Veilleux, Veilleux, Veilleux, Vogt, Wright, Wu, Yang   +82 more
core   +3 more sources

The role of lining materials in minimizing microleakage in class I cavities restored with nanohybrid composites: an in vitro study lining materials and microleakage in nanohybrid restorations

Эндодонтия Today
INTRODUCTION. The increasing demand for esthetic dental treatments has led to composite resin restorations becoming the primary material for posterior tooth restorations.
S. Shenvi, B. K. Aulakh, P. Oswal, A. Khaitan, A. Praveen, K. R. Jadhav   +5 more
doaj   +1 more source

Advanced composite combustor structural concepts program [PDF]

An analytical study was conducted to assess the feasibility of and benefits derived from the use of high temperature composite materials in aircraft turbine engine combustor liners.
Lohmann, R. P., Sattar, M. A.
core   +1 more source

Graphite-fiber-reinforced polyimide liners of various compositions in plain spherical bearings [PDF]

A plain spherical bearing design with a ball diameter of 28.6 mm, a race length of 12.7 mm, and a 1.7-mm-thick, molded composite liner was evaluated. The liner material is a self-lubricating composite of graphite-fiber-reinforced polyimide resin (GFRPI).
Jacobson, T. P., Sliney, H. E.
core   +1 more source

EFOSC2 Spectroscopy of SWIRE-CDFS Galaxies

, 2010
We present the optical spectra of a sample of 34 SWIRE-CDFS sources observed with EFOSC2 on the ESO 3.6m Telescope. We have used the spectra and spectroscopic redshifts to validate our photometric redshift codes and SED template fitting methods.
Babbedge, T., Clements, D., Kalfountzou, E., Rowan-Robinson, M., Seiradakis, J., Trichas, M.   +5 more
core   +1 more source

Incidence of tooth sensitivity after resin composite class III restoration with flowable composite as liner

Padjadjaran Journal of Dentistry, 2007
Resin composites is one of the currently most frequently used aesthetic restoration material. A drawback of resin composites is contraction of polimerization which may result in the coming about of dental sensitivity due to microleakage.
Andini Dimyati, Endang Sukartini, Dudi Aripin   +2 more
doaj   +1 more source