منابع مشابه
Calibration Method Study of Ultrasonic Thickness Gauge
Since the invention of ultrasonic examination technology, the ultrasonic thickness gauge has been widely used and playing an important role in many field, such as service inspection of pipeline and pressure vessel, in the quality control of massive construction project, the dimension measurement of complicated-shaped mechanical components and so on. With the rapid growing of our country economy...
متن کاملUltrasonic Thickness Estimation using Cross-Correlation and Phase-Shift
In this paper the cross-correlation and phase-shift techniques are used for material thickness estimation. The cross-correlation is used to measure the time a transmitted signal takes to arrive at the receiver or the time between two successive received signals (multiple echoes). Whereas the phase-shift technique measures the time delay (less than a sine wave period) between transmitted and rec...
متن کاملSulcal thickness as a vulnerability indicator for schizophrenia.
BACKGROUND People with schizophrenia may demonstrate cortical abnormalities, with gyri and sulci potentially being differentially affected. AIMS To measure frontal and temporal sulcal cortical thickness, surface area and volume in the non-psychotic relatives of patients with schizophrenia as a potential vulnerability indicator for the disorder. METHOD An automated parcellation method was us...
متن کاملBaseline subfoveal choroidal thickness as an indicator for bevacizumab outcomes in central retinal vein occlusion
Background: Retinal vein occlusions are one of the most common form of retinal vascular disorders and could lead to vision loss due to macular edema, macular ischemia and sequelae from neovascularization. Anti-venous endothelial growth factor (anti-VEGF) treatment is the choice strategy of treatment for patients with macular edema secondary to central retinal vein occlusion (CRVO). There is an ...
متن کاملUltrasonic sound as an indicator of acute pain in laboratory mice.
In response to pain, mice may vocalize at frequencies above the range of human hearing (greater than 20 kHz). To determine whether an ultrasonic recording system is a reliable tool for assessing acute pain, we measured audible and ultrasonic vocalization in mice subjected to either nonpainful or potentially painful procedures performed routinely in animal facilities. Data were collected from 10...
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ژورنال
عنوان ژورنال: Journal of the Japan Society of Precision Engineering
سال: 1953
ISSN: 0374-3543
DOI: 10.2493/jjspe1933.19.257