Results 81 to 90 of about 16,738 (170)

Watershed Segmentation with Chamfer Metric [PDF]

open access: yes, 2006
Watershed transformation is introduced as a computation in image graph of a path forest with minimal modified topographic distance in (ℝ+)2 Two algorithms are presented for image segmentation that use a metric defined by a unit neighborhood as well as a chamfer (a,b)-metric The algorithms use ordered queues to propagate over image pixels simulating the
Vasily Goncharenko, Alexander Tuzikov
openaire   +1 more source

Microanalysis of extended-test xenon hollow cathodes [PDF]

open access: yes
Four hollow cathode electron sources were analyzed via boroscopy, scanning electron microscopy, energy dispersive x ray analysis, and x ray diffraction analysis.
Patterson, Michael J.   +1 more
core   +1 more source

FRACTURE MECHANISM ANALYSIS AND IMPROVEMENT DESIGN OF M-PRESSURE PUMP CRANKSHAFT

open access: yesJixie qiangdu, 2015
In order to solve the problems of M-pressure pump crankshaft fracture,full analysis of the M-pump caranshaft fracture was congducted. On this basis,stress analysis was carried out on the crankshaft by ANSYS.
DAI JieTao, LI LieJun, ZHANG ZuJiang
doaj  

Consideration of Easygard Post Design on the Base of Advances Concurrent Engineering Tool [PDF]

open access: yes
The essence of CE is the integration of product design and process planning into one common activity. Concurrent design helps improve the quality of early design decisions and has a tremendous impact on life-cycle cost of the product.
Alexander Sharmazanashvili   +1 more
core   +1 more source

Optimization Design of Valve Disc for Concentric Drive Hydro-Oscillator

open access: yesShiyou jixie
The excessive deviation angle of extended reach wells and horizontal wells would create significant friction between the drill string and the sidewall,leading to a decrease in drilling speed. The use of hydro-oscillator is one of the effective methods to
Lei Zhongqing   +6 more
doaj  

Effect of marginal design on fracture resistance of IPS e.maxall ceramic restorations: Chamfer versus shoulder finish lines

open access: yesJournal of Islamic Dental Association of Iran, 2015
Background and Aim: One of the problems of all ceramic restorations is their risk of fracture due to occlusal loads. The aim of the present study was to compare the effect of two marginal designs (shoulder and chamfer) on the fracture resistance of IPS ...
Asadollah Ahmadzadeh   +2 more
doaj  

Marginal adaptation of copings of three systems in function of two different kinds of cervical termination

open access: yesRevista Ciência em Extensão, 2010
The objective of this work was to evaluate in vitro the accuracy of marginal foundation of copings of three ceramic systems: In-Ceram; IPS Empress 2 and Procera All Ceram.
Alberto Alvarenga de Oliveira   +2 more
doaj  

SIFAT MEKANIK DAN STRUKTUR MIKRO SAMBUNGAN LAS ALUMINIUM 6061 HASIL FRICTION WELDING

open access: yesRotor: Jurnal Ilmiah Teknik Mesin, 2017
The study of the interface mechanical strength of metal alloy friction welded is essential for increasing of the quality of bonding between two materials.
Hendry Wicaksana   +2 more
doaj  

STUDY ON THE INFLUENCE OF HYDRAULIC BULGING RESTRAINT INTENSITY ON MICROSAMPLE OF MAIN PIPELINE MATERIAL

open access: yesJixie qiangdu
Three kinds of micro-sample thicknesses(0.4 mm,0.5 mm and 0.6 mm)and three kinds of chamfer radii(0.5 mm,0.8 mm and 1.0 mm)of the original main pipe material were taken as the research objects to analyze the influence of restraint intensity in hydraulic ...
WANG ChunHui, AN YingHui
doaj  

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