The Determination of Ligament Strain by a Computer Controlled Knee Loading Apparatus

1987 ◽  
pp. 173-178
Author(s):  
L. Claes ◽  
L. Dürselen ◽  
H. Kiefer
Keyword(s):  
Knee Loading ◽  
Ligament Strain ◽  
Computer Controlled

Noninvasive Determination of Ligament Strain with Deformable Image Registration

2007 ◽  
Vol 35 (7) ◽  
pp. 1175-1187 ◽  
Author(s):  
Nikhil S. Phatak ◽  
Qunli Sun ◽  
Seong-Eun Kim ◽  
Dennis L. Parker ◽  
R. Kent Sanders ◽  
...  
Keyword(s):  
Image Registration ◽  
Deformable Image Registration ◽  
Ligament Strain

Evaluation of computer-controlled SEM in the study of metal-contaminated soils

2003 ◽  
Vol 67 (2) ◽  
pp. 219-231 ◽  
Author(s):  
H. W. Langmi ◽  
J. Watt
Keyword(s):  
Electron Microscopy ◽  
Heavy Metals ◽  
Contaminated Soils ◽  
X Ray ◽  
Computer Controlled ◽  
Weathering Crusts ◽  
Individual Particles ◽  
Element Mapping ◽  
Scanning Electron

Computer-controlled scanning electron microscopy (CCSEM) has been assessed for the determination of form and size distribution of heavy metals in urban contaminated soils. Metal distributions within individual particles were determined using X-ray element mapping. The sites selected for study were (1) around a landfill site, previously a colliery in Wolverhampton, UK and (2) a private garden adjacent to a railway in Nottingham, UK. Backscattered thresholding techniques were used to isolate the Pb-containing categories. The classification results for both Wolverhampton and Nottingham soils were generally similar but more Pb-containing classes were observed for the Nottingham samples when a comparison was made between results of the same size fractions. However, difficulties with the technique arose when particles showing chemically similar weathering crusts were assigned to the same class, despite having different internal compositions. The CCSEM data therefore need to be interpreted with caution and their application limited to situations in which particle internal complexity is not an issue.

scholarly journals Innovative microfossil (radiolarian) analysis using a system for automated image collection and AI-based classification of species

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Takuya Itaki ◽  
Yosuke Taira ◽  
Naoki Kuwamori ◽  
Hitoshi Saito ◽  
Minoru Ikehara ◽  
...  
Keyword(s):  
Artificial Intelligence System ◽  
Fossil Species ◽  
Human Expert ◽  
Intelligence System ◽  
Geological Age ◽  
Computer Controlled ◽  
Classification Tasks ◽  
Image Collection

AbstractMicrofossils are a powerful tool in earth sciences, and they have been widely used for the determination of geological age and in paleoenvironmental studies. However, the identification of fossil species requires considerable time and labor by experts with extensive knowledge and experience. In this study, we successfully automated the acquisition of microfossil data using an artificial intelligence system that employs a computer-controlled microscope and deep learning methods. The system was used to calculate changes in the relative abundance (%) of Cycladophora davisiana, a siliceous microfossil species (Radiolaria) that is widely used as a stratigraphic tool in studies on Pleistocene sediments in the Southern Ocean. The estimates obtained using this system were consistent with the results obtained by a human expert (< ± 3.2%). In terms of efficiency, the developed system was capable of performing the classification tasks approximately three times faster than a human expert performing the same task.

High Temperature Guinier X-Ray Diffractometry for Thermal Expansion Measurements in the Hexagonal form of Cordierite ((2MgO•2Al2O3•5SiO2)

1983 ◽  
Vol 27 ◽  
pp. 397-404
Author(s):  
J. S. Pressnall ◽  
J. J. Fitzpatrick ◽  
Paul Predecki
Keyword(s):  
Thermal Expansion ◽  
High Temperature ◽  
Close Agreement ◽  
Accurate Determination ◽  
Critical Test ◽  
Lattice Thermal Expansion ◽  
X Ray ◽  
Hexagonal Form ◽  
Computer Controlled

AbstractA computer-controlled high temperature Guinier diffractometer system for accurate determination of lattice thermal expansion is described. A critical test of the system using α-Al2O3 (0.3μ polishing alumina) showed close agreement with the single crystal expansion data of Wachtman et al. Lattice thermal expansion of cordierite doped with the following dopants: Ge+4, P+5, Zn+2, Li+1 and Ca+2 was investigated. Of these the Li+1 at the 5% level (5% of Si+4 replaced by Li+1 + Al+3) produced the largest decrease in mean lattice expansion.

Computer-controlled flow-injection analysis system for on-line determination of distribution ratios

1988 ◽  
Vol 60 (14) ◽  
pp. 1390-1393 ◽  
Author(s):  
Howard L. Nekimken ◽  
Barbara F. Smith ◽  
Gordon D. Jarvinen ◽  
E. J. Peterson ◽  
Marianne M. Jones
Keyword(s):  
Flow Injection ◽  
Flow Injection Analysis ◽  
Flow Injection Analysis System ◽  
On Line ◽  
Computer Controlled ◽  
Controlled Flow ◽  
Analysis System

scholarly journals High Temperature Texture Goniometer for in Situ Measurements of Transformation Textures

1998 ◽  
Vol 30 (3-4) ◽  
pp. 125-132
Author(s):  
G. Brückner ◽  
F. R. Reher ◽  
G. Gottstein
Keyword(s):  
High Temperature ◽  
Texture Evolution ◽  
Sample Surface ◽  
Texture Measurement ◽  
X Ray ◽  
Reducing Gas ◽  
Gas Atmosphere ◽  
Computer Controlled

A high temperature stage was designed for mounting onto a computer controlled four circle X-ray texture goniometer. This technique allowed to conduct in situ texture measurement, i.e. the determination of the texture evolution during rather than subsequent to annealing. The device was employed for temperatures up to 1000°C.The furnace consisted of a resistance wire of Pt30Rh, which was isolated against the specimen with Al2O3 glue. The furnace with the specimen was covered by a hemispherical KaptonTM foil. Inside the hemisphere a reducing gas atmosphere was used to avoid oxidation of the sample surface.

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