Recognition of human kidney ultrasonic organ images by two-dimensional dp matching method

1986 ◽  
Vol 17 (8) ◽  
pp. 50-59 ◽  
Author(s):  
Hiromitsu Yamada ◽  
Kazuhiko Yamamoto ◽  
Masahiko Matsuura
Keyword(s):  
Human Kidney ◽  
Two Dimensional ◽  
Matching Method

2-D Image Matching Based on Global Harmony Search Optimization

2012 ◽  
Vol 239-240 ◽  
pp. 1133-1137 ◽  
Author(s):  
Li Ming Guan ◽  
Qian Kai Yang ◽  
Jian Lin ◽  
Yi Fan Wu
Keyword(s):  
Hausdorff Distance ◽  
Image Matching ◽  
Fitness Function ◽  
Harmony Search ◽  
Two Dimensional ◽  
Edge Detector ◽  
Matching Method ◽  
Two Dimensional Image ◽  
Search Optimization ◽  
Canny Edge

A two-dimensional image matching method based on the improved Hausdorff distance and global harmony search optimization is presented in this paper. First, edges are extracted form the original images by the Canny edge detector. Then, a fitness function based on the improved Hausdorff distance is constructed. Finally the global harmony search optimization is adopted to optimize the fitness function. Experiments show that the proposed method is able to locate the object of interest globally and efficiently.

Stress Analysis and the Characteristics of T-Shape Bolted Joints Under Tensile Loadings

2005 ◽  
Author(s):  
Toshiyuki Sawa ◽  
Seiichi Hamamoto
Keyword(s):  
Bending Moment ◽  
Theory Of Elasticity ◽  
Bolted Joints ◽  
Load Factor ◽  
Two Dimensional ◽  
Bolted Joint ◽  
Dimensional Theory ◽  
Matching Method ◽  
Point Matching ◽  
Bolt Stress

In designing a bolted joint, it is important to examine the interface stress distribution (clamping effect) and to estimate the load factor, that is the ratio of an additional axial bolt force to a load. In order to improve the clamping effect raised faces of the interface have been used. But these interfaces in bolted joints have been designed empirically and the theoretical grounds are not made clear. In the present paper, in the case of T-shaped flanges with raised faces the clamping effect is analyzed by a two-dimensional theory of elasticity and the point matching method. Then, the load factor is analyzed. Moreover, with the application of the load a bending moment is occurred in bolts and the stress is added due to this bending moment. The bending moment in the bolt is also analyzed. In order to verify these analyses experiments to measure the load factor and the maximum bolt stress were carried out. The values of the load factor and the load when interface start to separate are compared with those of the joints with flat-faces. The analytical results are in fairly good agreements with the experimental ones.

scholarly journals LACK OF GENIC VARIATION IN THE ABUNDANT PROTEINS OF HUMAN KIDNEY

Genetics ◽  
1980 ◽  
Vol 96 (4) ◽  
pp. 967-974
Author(s):  
Sandra C Smith ◽  
Robert R Racine ◽  
Charles H Langley
Keyword(s):  
Human Kidney ◽  
Two Dimensional ◽  
Electrophoretic Variation ◽  
Two Dimensional Electrophoresis ◽  
Genic Variation ◽  
Dimensional Electrophoresis ◽  
Selection Of

ABSTRACT Abundant proteins of 25 human kidneys were surveyed for genic variation by means of two-dimensional electrophoresis. Eighty-three (83) proteins were scored, and no genic variation was detected. This reduction in genic heterozygosity corroborates results determined with two-dimensional electrophoresis in mice and flies. These results suggest that previous estimates of electrophoretic variation may have been in error because of biased selection of loci.

scholarly journals Generation of easily accessible human kidney tubules on two-dimensional surfaces in vitro

2010 ◽  
Vol 15 (6) ◽  
pp. 1287-1298 ◽  
Author(s):  
Huishi Zhang ◽  
Samantha Fong-Ting Lau ◽  
Ber Fong Heng ◽  
Pei Yun Teo ◽  
P. K. D. Thilini Alahakoon ◽  
...  
Keyword(s):  
Human Kidney ◽  
Two Dimensional ◽  
Kidney Tubules

scholarly journals A two-dimensional propensity score matching method for longitudinal quasi-experimental studies: A focus on travel behavior and the built environment

2020 ◽  
pp. 239980832098230
Author(s):  
Haotian Zhong ◽  
Wei Li ◽  
Marlon G Boarnet
Keyword(s):  
Propensity Score ◽  
Built Environment ◽  
Propensity Score Matching ◽  
Treatment Effect ◽  
Travel Behavior ◽  
Experimental Studies ◽  
Two Dimensions ◽  
Superior Performance ◽  
Two Dimensional ◽  
Matching Method

The lack of longitudinal studies of the relationship between the built environment and travel behavior has been widely discussed in the literature. This paper discusses how standard propensity score matching estimators can be extended to enable such studies by pairing observations across two dimensions: longitudinal and cross-sectional. Researchers mimic randomized controlled trials and match observations in both dimensions to find synthetic control groups that are similar to the treatment group and to match subjects across before- and after-treatment periods. We call this a two-dimensional propensity score matching method. This method demonstrates superior performance for improving treatment effect estimation based on Monte Carlo evidence. A near-term opportunity for such matching is identifying the treatment effect of transportation infrastructure on travel behavior.

A New Development of Multi-to-One Cell-Matching Method and Its Application in VOF Interface Tracking

2005 ◽  
Author(s):  
Yumin Xiao ◽  
R. S. Amano
Keyword(s):  
Unstructured Grid ◽  
Three Dimensional ◽  
Adaptive Mesh ◽  
Test Problems ◽  
Interface Tracking ◽  
Two Dimensional ◽  
Matching Method ◽  
Geometric Information ◽  
Convective Flux ◽  
New Development

A new algorithm—multi-to-one cell matching method for interface tracking in volume-of-fluid (VOF) calculation is presented. This method is based upon unstructured grid and implemented on cells having quadrilaterals or hexahedrons origin. This method utilizes the geometrical characteristic of each vertex in an arbitrary cell to classify the vertex type and to group faces into four (two dimensional) or six (three dimensional) groups. The final regrouped arbitrary cells have the similar geometric information and VOF distributions as that of quadrilaterals or hexahedrons. Convective flux to solve the volume evolution equation can then be exactly evaluated. The method was implemented on unstructured adaptive mesh for VOF simulation. Numerical results for those test problems provide evidence for the algorithm’s quality, and accuracy.

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