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السجلات المعروضة 61 -- 70 من 103
A new closed-loop converter for sinusoidal encoders - Preliminary results
(
IEEE
, 2009 , Conference Paper)
Sinusoidal position transducers provide accurate and reliable representation of the mechanical position of their shafts. The sine/cosine transducers signals may be used in open loop or closed loop arrangements for the ...
Data Mining, Reasoning and Incremental Information Retrieval through Non Enlargeable Rectangular Relation Coverage
(
Springer Berlin / Heidelberg
, 2009 , Conference Paper)
Association rules extraction from a binary relation as well as reasoning and information retrieval are generally based on the initial representation of the binary relation as an adjacency matrix. This presents some ...
Positron annihilation studies of the effect of gamma irradiation dose in polymers
(
Elsevier Ltd
, 2003 , Conference Paper)
Positron annihilation lifetime (PAL) technique has been applied to study the effect of gamma irradiation dose on the structure of low-density polyethylene and polystyrene. The positron annihilation lifetime measurements ...
Positron annihilation lifetime study of helium ions implanted polyethylene blends
(
Trans Tech Publications Ltd
, 2004 , Conference Paper)
The structural defects of linear low density polyethylene (LLDPE) and high density polyethylene (HOPE) blends implanted with helium ions were investigated using position annihilation lifetime (PAL) technique. The positron ...
Electron irradiated low-density polyethylene studied by positron annihilation lifetime spectroscopy
(
Elsevier Ltd
, 2003 , Conference Paper)
A study of the degree and rate of cross-linking of low-density polyethylene (LDPE) as a result of irradiation by high-energy electron beam has been performed using positron annihilation lifetime (PAL) technique. The PAL ...
Tests of a diamond field-assisted positron moderator
(
Elsevier
, 2002 , Conference Paper)
Diagnostic studies have been performed on a 70 μm thick diamond film with a view to its development as a possible field-assisted moderator (FAM) for slow positron emission. The film was coated on one side with a 200 nm ...
Re-emission of slow positrons from tungsten at elevated temperatures
(
Elsevier
, 2002 , Conference Paper)
A series of measurements have been made on the dependence of the intensity and energy spectrum of slow positrons re-emitted from polycrystalline tungsten foil held at temperatures of up to 500 °C. Irrespective of target ...
Microstructure of heat-treated steel probed by positron annihilation
(2001 , Conference Paper)
Positron annihilation lifetime technique has been applied to study the microstructure change in steel after heat treatment. For this purpose, the specimens are heat treated in various manners; normalizing, annealing, ...
Applications of virtual construction environments in improving construction site safety
(
10th International Conference on Civil, Structural and Environmental Engineering Computing, Civil-Comp 2005
, 2005 , Conference Paper)
The complex nature of construction site safety during construction is a major issue to be considered. Among the top reasons affecting the safety of the construction site is the available workplace and the surrounding ...
Baseline formation for damage diagnosis in a turbine blade
(
Aalborg University
, 2005 , Conference Paper)
In the absence of a baseline for the pre-damaged structures, an attempt is made to create one, analytically, using dimensional analysis and physically using stereolithography. First, a preliminary diagnosis check is performed ...