Results 161 to 170 of about 5,597,978 (191)

Oriented single-crystal diamond cones and their arrays

Applied Physics Letters, 2003
One of the major problems in material science has been the difficulty in modification of the most endurable material, diamond, due to its extreme hardness and chemical inertness. Here, we report the development of a conical structure of diamond by performing bias-assisted reactive ion etching in hydrogen plasma.
W. J. Zhang, X. M. Meng, C. Y. Chan, Y. Wu, I. Bello, S. T. Lee   +5 more
openaire   +1 more source

Single-step fabrication of silicon-cone arrays

Applied Physics Letters, 2003
A regular lattice of SiO2 microspheres on a quartz support is used as a microlens system for laser-induced single-step fabrication of arrays of silicon cones on a (100) Si surface. The experiments were performed with single-pulse 248 nm KrF laser radiation.
G. Wysocki, R. Denk, K. Piglmayer, N. Arnold, D. Bäuerle   +4 more
openaire   +1 more source

The effect of standard or serial preparation on single cone obturations

International Endodontic Journal, 1987
Summary. This leakage study, in vitro, used methylene blue dye as a marker to detect the extent of apical fluid penetration after buccal roots from maxillary first bicuspids were instrumented either by the standard technique or serially, and obturated with laterally condensed gutta‐percha and sealer, a single gutta‐percha master cone and sealer, or ...
openaire   +2 more sources

Structuring single- and nano-crystalline diamond cones

Diamond and Related Materials, 2004
Abstract A novel method of nanostructuring diamond films into cone arrays through bias assisted reactive ion etching (RIE) is reported. It can be applied for both micro-crystalline diamond, forming single-crystalline cones and for nanodiamond films, forming nanodiamond cones.
W.J. Zhang, Y. Wu, C.Y. Chan, W.K. Wong, X.M. Meng, I. Bello, Y. Lifshitz, S.T. Lee   +7 more
openaire   +1 more source

Single membrane: Cone-shaped roof

2011
The following two sections discuss the two most common shapes used for single layer roofs: the ‘cone-shaped’ roof and the ‘barrelshaped’ roof. A third type, based on the shape of a hyperbolic paraboloid, uses the same principles as those for these two types and is constructed using the same principles and same construction details.
openaire   +1 more source

Scanning interferometry of sunfish cones I Longitudinal variation in single-cone refractive index

Journal of the Optical Society of America A, 1996
Interferometric measurements of cone inner segment–cone outer segments (CIS–COS’s) isolated from the green sunfish (Lepomis cyanellus) were made with a He–Ne laser focused to a 0.3-μm spot. Multiple measurements were obtained by moving the spot across the CIS–COS’s in a raster pattern; adjacent measurements were spaced approximately 0.2 μm apart.
M. P. Rowe, J. M. Corless, N. Engheta, E. N. Pugh   +3 more
openaire   +1 more source

Advanced single‐slice rebinning in cone‐beam spiral CT

Medical Physics, 2000
To achieve higher volume coverage at improved z‐resolution in computed tomography (CT), systems with a large number of detector rows are demanded. However, handling an increased number of detector rows, as compared to today's four‐slice scanners, requires to accounting for the cone geometry of the beams.
M, Kachelriess, S, Schaller, W A, Kalender   +2 more
openaire   +2 more sources

Intracellular Recordings from Single Rods and Cones in the Mudpuppy Retina

Science, 1973
Mudpuppy rod and cone responses differ both in time course of recovery and in absolute sensitivity. Rods are about 25 times more sensitive than cones and appear to generate a larger voltage per quantum absorbed. Comparison of mudpuppy receptor sensitivities to those of other vertebrates suggests that the difference in sensitivity between rods and cones
G L, Fain, J E, Dowling
openaire   +2 more sources

Side parameter for the torus with a single cone point

Journal of Knot Theory and Its Ramifications, 2015
We introduce the side parameter map from the space of cone hyperbolic structures on the torus with a single cone point to the hyperbolic plane ℍ2, based on the idea in the Jorgensen theory for punctured torus Kleinian groups. Then, we show that the side parameter map is a homeomorphism.
openaire   +1 more source

Functional properties of twin and single cones

Neuroscience Research, 1986
D A, Burkhardt, T W, Kraft, J, Gottesman
openaire   +2 more sources