Characterization of external ear impulse responses using Golay codes

1992 ◽  
Vol 92 (2) ◽  
pp. 1169-1171 ◽  
Author(s):  
Bin Zhou ◽  
David M. Green ◽  
John C. Middlebrooks
Keyword(s):  
External Ear ◽  
Impulse Responses ◽  
Golay Codes

scholarly journals Characterization of extended Hamming and Golay codes as perfect codes in poset block spaces

2018 ◽  
Vol 12 (4) ◽  
pp. 629-639
Author(s):  
B. K. Dass ◽  
◽  
Namita Sharma ◽  
Rashmi Verma ◽  
Keyword(s):  
Perfect Codes ◽  
Block Spaces ◽  
Golay Codes

scholarly journals Spatial and Temporal Characterization of Indoor Millimeter Wave Propagation at 24 GHz

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Seok-hwan Min ◽  
Hayeon Kim ◽  
Haengseon Lee ◽  
Woo Jin Byun ◽  
Minsoo Kang ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Millimeter Wave ◽  
Channel Model ◽  
Impulse Responses ◽  
Channel Sounder ◽  
Model Following ◽  
Millimeter Wave Propagation ◽  
Temporal And Spatial ◽  
24 Ghz

Indoor millimeter wave propagation at the frequency of 24 GHz is studied by experimental methods. Measurements are performed to obtain temporal and spatial channel model using a channel sounder and rotating antennas in a corridor. The measured impulse responses are processed to obtain compact channel model following Saleh-Valenzuela’s model. The responses are compared with those of 5.3 GHz for the same test sites. Angular spread of 24 GHz is found to be smaller than that of 5.3 GHz, while echoes of 24 GHz are found to be longer than those of 5.3 GHz.

scholarly journals Characterization of subscriber local loop by measures and analysis of frequency and impulse responses

2006 ◽  
Author(s):  
João C. W. A. Costa ◽  
Jacklyn Reis ◽  
Igor Negrão ◽  
Agostinho Castro ◽  
Lamartine V. de Souza ◽  
...  
Keyword(s):  
Impulse Responses ◽  
Local Loop

Characterization of Malassezia microbiota in the human external ear canal and on the sole of the foot

2012 ◽  
pp. no-no
Author(s):  
Enshi Zhang ◽  
Takafumi Tanaka ◽  
Ryoji Tsuboi ◽  
Koichi Makimura ◽  
Akemi Nishikawa ◽  
...  
Keyword(s):  
External Ear ◽  
Ear Canal ◽  
External Ear Canal ◽  
Sole Of The Foot

Morphological Characterization of Mycobacteriophage R1

1974 ◽  
Vol 32 ◽  
pp. 254-255
Author(s):  
B. L. Soloff ◽  
T. A. Rado
Keyword(s):  
Carbon Source ◽  
Stationary Phase ◽  
Growth Phase ◽  
Minimal Medium ◽  
Morphological Characterization ◽  
Logarithmic Growth Phase ◽  
Complete Lysis ◽  
Lysogenic Culture ◽  
Logarithmic Growth

Mycobacteriophage R1 was originally isolated from a lysogenic culture of M. butyricum. The virus was propagated on a leucine-requiring derivative of M. smegmatis, 607 leu−, isolated by nitrosoguanidine mutagenesis of typestrain ATCC 607. Growth was accomplished in a minimal medium containing glycerol and glucose as carbon source and enriched by the addition of 80 μg/ ml L-leucine. Bacteria in early logarithmic growth phase were infected with virus at a multiplicity of 5, and incubated with aeration for 8 hours. The partially lysed suspension was diluted 1:10 in growth medium and incubated for a further 8 hours. This permitted stationary phase cells to re-enter logarithmic growth and resulted in complete lysis of the culture.

AEM analysis of crystallization in Ti-based amorphous alloys

1983 ◽  
Vol 41 ◽  
pp. 270-271
Author(s):  
A.R. Pelton ◽  
A.F. Marshall ◽  
Y.S. Lee
Keyword(s):  
Magnetic Properties ◽  
Amorphous Alloys ◽  
Amorphous Materials ◽  
Isothermal Annealing ◽  
Amorphous Matrix ◽  
Nucleation And Growth ◽  
Current Interest ◽  
Amorphous Films ◽  
Electrical And Magnetic Properties

Amorphous materials are of current interest due to their desirable mechanical, electrical and magnetic properties. Furthermore, crystallizing amorphous alloys provides an avenue for discerning sequential and competitive phases thus allowing access to otherwise inaccessible crystalline structures. Previous studies have shown the benefits of using AEM to determine crystal structures and compositions of partially crystallized alloys. The present paper will discuss the AEM characterization of crystallized Cu-Ti and Ni-Ti amorphous films.Cu60Ti40: The amorphous alloy Cu60Ti40, when continuously heated, forms a simple intermediate, macrocrystalline phase which then transforms to the ordered, equilibrium Cu3Ti2 phase. However, contrary to what one would expect from kinetic considerations, isothermal annealing below the isochronal crystallization temperature results in direct nucleation and growth of Cu3Ti2 from the amorphous matrix.

Characterization of Coherent, Ordered Precipitates in Nickel-Base Alloys

1973 ◽  
Vol 31 ◽  
pp. 144-145
Author(s):  
B. H. Kear ◽  
J. M. Oblak
Keyword(s):  
Stable Phase ◽  
Nickel Base Superalloy ◽  
Alloy 718 ◽  
Commercial Alloy ◽  
Precipitate Morphology ◽  
Continuous Precipitation ◽  
Nickel Base ◽  
Base Superalloy ◽  
Strengthening Precipitate

A nickel-base superalloy is essentially a Ni/Cr solid solution hardened by additions of Al (Ti, Nb, etc.) to precipitate a coherent, ordered phase. In most commercial alloy systems, e.g. B-1900, IN-100 and Mar-M200, the stable precipitate is Ni3 (Al,Ti) γ′, with an LI2structure. In A lloy 901 the normal precipitate is metastable Nis Ti3 γ′ ; the stable phase is a hexagonal Do2 4 structure. In Alloy 718 the strengthening precipitate is metastable γ″, which has a body-centered tetragonal D022 structure.Precipitate MorphologyIn most systems the ordered γ′ phase forms by a continuous precipitation re-action, which gives rise to a uniform intragranular dispersion of precipitate particles. For zero γ/γ′ misfit, the γ′ precipitates assume a spheroidal.

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