texture structure
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Author(s):  
V. SIEDIN ◽  
O. HRABOVETS ◽  
V. KOVBA ◽  
V. ULIANOV ◽  
V. MYKALO

Problem statement. The problem of improving the learning process can be solved by increasing the educational collections of minerals and rocks that can be found every day, but for various reasons, do not pay attention to them. The best samples of various stone materials were usually used for cladding. Similarly, in the external and internal cladding of the academy buildings were used varieties of rocks that differ in strength, color, texture, structure and inclusions of minerals and are the best examples of decorative building materials. Purpose of the article. All this diverse stone decoration of the Academy can be used in the educational process, in particular, for the study of minerals and rocks within the discipline “Engineering Geology”, which is read to all students of the Faculty of Civil Engineering and Architecture, as well as the Faculty of Civil Engineering and Ecology. Conclusion. All this diverse stone decoration of the Academy is quite possible to use in the educational process, in particular, for the study of minerals and rocks in the framework of teaching the discipline “Engineering Geology”, which is read to all students of the Faculty of Civil Engineering and Architecture, as well as the Faculty of Civil Engineering and Ecology. Thanks to the polished surface of large slabs of facing rocks, it is possible to visually and more fully identify rocks while studying the relevant disciplines, which is convenient for teaching students of all specialties. It is expedient to use facing materials of buildings of educational institution in the course of studying of geological disciplines, especially for students-architects for what it is necessary to provide target excursions on buildings of academy. Various rocks, with which the interior elements are faced, serve as a good addition to the existing educational collections of the Department of Engineering Geology and Geotechnics.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Yuan Li ◽  
Muli Liu ◽  
JunPing Liu ◽  
Yali Yang ◽  
Xue Gong

Abstract The local binary pattern (LBP) and its variants have shown their effectiveness in texture images representation. However, most of these LBP methods only focus on the histogram of LBP patterns, ignoring the spatial contextual information among them. In this paper, a uniform three-structure descriptor method was proposed by using three different encoding methods so as to obtain the local spatial contextual information for characterizing the nonuniform texture on the surface of colored spun fabrics. The testing results of 180 samples with 18 different color schemes indicate that the established texture representation model can accurately express the nonuniform texture structure of colored spun fabrics. In addition, the overall correlation index between texture features and sample parameters is 0.027 and 0.024, respectively. When compared with the LBP and its variants, the proposed method obtains a higher representational ability, and simultaneously owns a shorter time complexity. At the same time, the algorithm proposed in this paper enjoys ideal effectiveness and universality for fabric image retrieval. The mean Average Precision (mAP) of the first group of samples is 86.2%; in the second group of samples, the mAP of the sample with low twist coefficient is 89.6%, while the mAP of the sample with high twist coefficient is 88.5%.


Author(s):  
Dr. Jayant Sinha

The Lodhma area, in the Ranchi district, constitutes the central segment of Chotanagpur Granite Gneissic Complex ( CGGC) and falls in the northeastern segment of Survey of India toposheet number 73E/4. The CGGC is mainly composed of variants of granitic rocks, amphibolites and metasedimentaries. The granitic rocks find good exposure in the area. They comprise predominantly of granite gneisses, crystalline massive granites and migmatites showing noticeable variations in mineralogy, texture, structure and associations. The regional strike of the lithounits of the area show almost E-W trend. However ambient structural controls have brought about local changes in the strike direction. The area has witnessed at least three phases of deformations which is reflected by three generations of folds, which are generally isoclinals. Petrogenetic characterization of granitic rocks and its variants in the area has been attempted using various geochemical tools involving major/ trace element studies and Niggli values. S –type parentage of these Granites have been established on the basis of distribution behavior of various chemical components present in it, thereby indicating role of pelitic schists in the generation of anatectic melt, which ultimately crystallized into granites. S-type lineage of these granites has also been further cemented with the help of several well established binary and ternary variation diagrams


Author(s):  
M. Chomiak ◽  
J. Trawczyński ◽  
M. Zawadzki

AbstractZn–Ti–Co(Ni) sorbents for H2S removal from model hot coal were prepared and characterized. Effects of cobalt (Co) and nickel (Ni) on the sorbents texture, structure, H2S sorption capacity and regeneration properties were determined. TiO2 formed mixed metal oxides with CoO and NiO in the fresh sorbents, while TiO2 and nanocrystalline sulfides of Zn, Co, Ni were found in sulphided ones. The oxidative regeneration of sulphided sorbents re-formed mixed oxides. Sorption capacity of studied materials increased along with an increase of the amount of added Co (Ni) and also with the number of work cycles. Co-doped Zn–Ti materials adsorbed up to 244% more sulfur than these of Zn–Ti, while Ni-doped materials adsorbed ca. twice more H2S than the corresponding Co-doped sorbents. The addition of Co (Ni) decreased the temperature of ZnS oxidation. The catalytic effect of the Co (Ni) oxides on the oxidation of ZnS was suggested.


2021 ◽  
pp. 118-124
Author(s):  
G. S. Savchenko

The aim of this paper is to identify the specifics of orchestral writing in the later works of I. Stravinsky on the example of the ballet “Agon” (1953–1957). Significance of the topic. From 1953 begins the late (serial) period of I. Stravinsky’s work. Due to stylistic “modulation”, the study of orchestral writing in later works at the intersection of constant principles (multifigure, combinativity and plasticity) and innovations found out by us is relevant. Research methodology. I. Stravinsky’s late style is studied in various aspects. A topical issue is the composer’s interpretation of serial technique (Glivinsky, 1995; Rogers, 2004; Straus, 1999; Smyth, 2000). N. Kardash (2010) offers a multidisciplinary textological approach in the studying of recent opera and ballet. Renaissance dance forms are studied in “Agon” by M. Richardson (2003). Characteristics of later works are contained in the section of the monograph of M. Druskin (2009). V. Zaderatsky’s monograph (1980) is devoted to the polyphonic thinking of the composer. Historical, comparative, functional, systematic research methods are used in the work. Results. I. Stravinsky’s original orchestral writing was formed in his early works (1908–1910). They gradually formed the principles of multifigure, combinativity (Savchenko, 2019; Savchenko, 2020) and plasticity, found out by us, as universal principles of the composer’s orchestral writing. In the ballet “Agon” the composer applied a serial technique that determines the key role of polyphonic techniques of work with thematic invention, respectively, the dominance of horizontal thinking. At the same time in the creative comprehension and elaboration of techniques of serial technique the composer relies on the methods developed in his works (“formular” thematic invention, motives rotation technique, counterpoint combination of them) (Druskin, 2009, p. 226–227), motive-variant work (Savenko, 2001). Accordingly, ballet acts can be divided into two groups: with horizontal or horizontal/vertical priority in the organization of the orchestral texture. Where the priority is horizontal, we highlight the following variants of the composition of the orchestral texture: 1) monophony (unison) or splitting of unison 2) texture based on the counterpoint interaction of short lines (sometimes — sound points); 3) on the basis of contrasting polyphony; 4) on the basis of imitation polyphony. Conclusions. 1) In the orchestral writing of acts with horizontal/vertical priority, the constant principles of multifigure, combinativity and plasticity remain dominant; 2) Where the horizontal is a priority, innovative principles of organization of the orchestral texture prevail; constant principles are revealed covertly or in a modified form; 3) At the level of a ballet composition as a whole, the alternation of different types of organization of the orchestral texture is formed, in which different ideas about time and space are embodied; thoughtful timbre strategy and handling of different types of orchestral texture give rise to the original timbre-texture structure of the work.


LWT ◽  
2021 ◽  
Vol 138 ◽  
pp. 110650
Author(s):  
Tong-Ge Bai ◽  
Liang Zhang ◽  
Jian-Ya Qian ◽  
Wei Jiang ◽  
Mangang Wu ◽  
...  

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Changxia Ma ◽  
Heng Zhang ◽  
Bing Keong Li

The shadow of pavement images will affect the accuracy of road crack recognition and increase the rate of error detection. A shadow separation algorithm based on morphological component analysis (MCA) is proposed herein to solve the shadow problem of road imaging. The main assumption of MCA is that the image geometric structure and texture structure components are sparse within a class under a specific base or overcomplete dictionary, while the base or overcomplete dictionaries of each sparse representation of morphological components are incoherent. Thereafter, the corresponding image signal is transformed according to the dictionary to obtain the sparse representation coefficients of each part of the information, and the coefficients are shrunk by soft thresholding to obtain new coefficients. Experimental results show the effectiveness of the shadow separation method proposed in this paper.


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