The Experts below are selected from a list of 27 Experts worldwide ranked by ideXlab platform
Ihsan And Sule - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the Production Properties of Fancy Yarns Using Image Processing Method
'Institute of Electrical and Electronics Engineers (IEEE)', 2015Co-Authors: Ihsan And SuleAbstract:Nowadays, rapid development in the technology of optical and optoelectronic detectors leads the usage of the computer vision based feature extraction techniques which are examined in a wide range from forensic investigations to automatic quality control of industrial products. Automatic identification of the Production fault and Production parameters of textile materials is one of the investigation fields, in which the computer vision methods become crucial in terms of the prevention of loss of raw material and labor time. In this study, in order to determine the twist level of Chenille yarn, which is extensively used in woven and knitted fabrics of our daily life, segmented image in which the component yarns are segmented in different scales of grey-level values is obtained by using sequential image processing algorithms. Besides the statistical examination of the axial grey-level signal extracted from segmented image, texture correlation curve determined by using Haralick's GLCM (grey-level co-occurence matrix) features also ensures the successfully identification of twist level of the yarn. Then, Hough Transform (HT) has been used to predict the reflection and barre faults which are encountered in the fabrics to be produced from the yarns whose pile Direction has not been adjusted after winding process in accordance with the original Production Direction
And I. Sule - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the Production properties of fancy yarns using image processing method [Fantezi Ipliklerin Üretim Özelliklerinin Görüntü Işleme Yöntemi ile Incelenmesi]
'Institute of Electrical and Electronics Engineers (IEEE)', 2015Co-Authors: And I. SuleAbstract:Nowadays, rapid development in the technology of optical and optoelectronic detectors leads the usage of the computer vision based feature extraction techniques which are examined in a wide range from forensic investigations to automatic quality control of industrial products. Automatic identification of the Production fault and Production parameters of textile materials is one of the investigation fields, in which the computer vision methods become crucial in terms of the prevention of loss of raw material and labor time. In this study, in order to determine the twist level of Chenille yarn, which is extensively used in woven and knitted fabrics of our daily life, segmented image in which the component yarns are segmented in different scales of grey-level values is obtained by using sequential image processing algorithms. Besides the statistical examination of the axial grey-level signal extracted from segmented image, texture correlation curve determined by using Haralick's GLCM (grey-level co-occurence matrix) features also ensures the successfully identification of twist level of the yarn. Then, Hough Transform (HT) has been used to predict the reflection and barré faults which are encountered in the fabrics to be produced from the yarns whose pile Direction has not been adjusted after winding process in accordance with the original Production Direction. © 2015 IEEE
Ahmet Hamdi Deliormanli - One of the best experts on this subject based on the ideXlab platform.
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stress related fracturing in dimension stone quarries
Proceedings of the World Multidisciplinary Earth Sciences Symposium (2016 Prague Czech Republic), 2016Co-Authors: Ahmet Hamdi Deliormanli, Norbert H MaerzAbstract:In Missouri, the horizontal stresses (pressures) in the near surface rock are uncommonly high. While the vertical stresses in rock are simply a function of the weight of the overlying rock, near surface stresses can be many times higher. The near surface horizontal stresses can be in excess of 5 times greater than the vertical stresses. In this research, Flatjack method was used to measure horizontal stress in Red Granite Quarry in Missouri. The flat jack method is an approved method of measuring ground stresses. A saw cut is used to "relax" the stress in the ground by allowing the rock to deform inwards the cut. A hydraulic flat jack is used to inflate the slot; to push the rock back to its stressed position, as measured by a strain gauge on either side of the slot. The pressure in the jack, when the rock is exactly back to its original position, is equal to the ground stress before the saw cut was made. According to the results, present Production Direction for each pit is not good because the maximum stress Direction is perpendicular with Production Direction. This case causes unintentional breakage results in the loss rock. The results show that Production Direction should be changed.
Norbert H Maerz - One of the best experts on this subject based on the ideXlab platform.
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stress related fracturing in dimension stone quarries
Proceedings of the World Multidisciplinary Earth Sciences Symposium (2016 Prague Czech Republic), 2016Co-Authors: Ahmet Hamdi Deliormanli, Norbert H MaerzAbstract:In Missouri, the horizontal stresses (pressures) in the near surface rock are uncommonly high. While the vertical stresses in rock are simply a function of the weight of the overlying rock, near surface stresses can be many times higher. The near surface horizontal stresses can be in excess of 5 times greater than the vertical stresses. In this research, Flatjack method was used to measure horizontal stress in Red Granite Quarry in Missouri. The flat jack method is an approved method of measuring ground stresses. A saw cut is used to "relax" the stress in the ground by allowing the rock to deform inwards the cut. A hydraulic flat jack is used to inflate the slot; to push the rock back to its stressed position, as measured by a strain gauge on either side of the slot. The pressure in the jack, when the rock is exactly back to its original position, is equal to the ground stress before the saw cut was made. According to the results, present Production Direction for each pit is not good because the maximum stress Direction is perpendicular with Production Direction. This case causes unintentional breakage results in the loss rock. The results show that Production Direction should be changed.
Zhang Yuan - One of the best experts on this subject based on the ideXlab platform.
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The areal sweep efficiency of invert 9-spot pattern of with fracture
Petrochemical Industry Application, 2013Co-Authors: Zhang YuanAbstract:Based on the characteristics of the pattern water flooding exploitation in low-permeability reservoir and the stream tube model and the Beckley-Leverett equation,and by taking the start-up pressure gradient into consideration,we establish the areal sweep efficiency formula and water breakthrough time formula the invert 9 -spot pattern with fracture. The formula help solve the theoretical problem of calculation of areal sweep efficiency formula and establishment of water breakthrough time of low-speed non-Darcy seepage flow,which is different from darcy seepage flow. The results show that the size of the angle between fracture and injection-Production Direction has a large impact on the areal sweep efficiency of the invert 9-spot pattern with fracture, so we need consider various factors comprehensively. The research provides theory basis for development and evaluation of low-permeability reservoir.
