scholarly journals Use of Terrestrial 3D Laser Scanner in Cartographing and Monitoring Relief Dynamics and Habitation Space from Various Historical Periods

10.5772/47776 ◽  
2012 ◽  
Author(s):  
Gheorghe Romanescu ◽  
Vasile Cotiug ◽  
Andrei Asndulesei
Keyword(s):  
Laser Scanner ◽  
Historical Periods

Evaluation of geometrical benchmark artifacts containing multiple overhang lengths fabricated using material extrusion technique

2020 ◽  
Vol 14 (3) ◽  
pp. 7296-7308
Author(s):  
Siti Nur Humaira Mazlan ◽  
Aini Zuhra Abdul Kadir ◽  
N. H. A. Ngadiman ◽  
M.R. Alkahari
Keyword(s):  
3D Model ◽  
Laser Scanner ◽  
Dimensional Accuracy ◽  
Fused Deposition Modelling ◽  
Layer By Layer ◽  
Fused Deposition ◽  
Layer Technique ◽  
Subtractive Manufacturing ◽  
Manufacturing Features ◽  
Layer Problem

Fused deposition modelling (FDM) is a process of joining materials based on material entrusion technique to produce objects from 3D model using layer-by-layer technique as opposed to subtractive manufacturing. However, many challenges arise in the FDM-printed part such as warping, first layer problem and elephant food that was led to an error in dimensional accuracy of the printed parts especially for the overhanging parts. Hence, in order to investigate the manufacturability of the FDM printed part, various geometrical and manufacturing features were developed using the benchmarking artifacts. Therefore, in this study, new benchmarking artifacts containing multiple overhang lengths were proposed. After the benchmarking artifacts were developed, each of the features were inspected using 3D laser scanner to measure the dimensional accuracy and tolerances. Based on 3D scanned parts, 80% of the fabricated parts were fabricated within ±0.5 mm of dimensional accuracy as compared with the CAD data. In addition, the multiple overhang lengths were also successfully fabricated with a very significant of filament sagging observed.

Personal and Eponymous Nicknames in Historical Retrospective

2020 ◽  
Vol 81 (2) ◽  
pp. 83-87
Author(s):  
Yu. V. Shcherbinina
Keyword(s):  
Secondary School ◽  
Daily Life ◽  
School Teaching ◽  
History Of ◽  
Methodological Practice ◽  
Historical Periods

The article is devoted to the genesis of personal and eponymous nicknames as a vivid phenomenon in the history of language and speech, which has irrefutable potential for developing methods of teaching and educating schoolchildren. The main varieties of nicknames, the conditions for their formation and the specifics of daily life in different historical periods are considered. The interconnections of nicknames with similar and related phenomena of Russian and European speech cultures are analyzed. The feasibility of analysing nicknames in the methodological practice of secondary school is postulated. Possible ways of the implementation of intrasubject and intersubject communications in the school teaching of humanities are offered on the basis of familiarizing students with the history of eponymous and personal nicknames.

INVESTIGATIONS OF THE BALTIC SEA COASTAL ZONE ABOVE-WATER PART TOPOGRAPHY DYNAMICS BY MEANS OF TERRESTRIAL LASER SCANNER (SVETLOGORSK CITY, KALININGRAD REGION)

2017 ◽  
Author(s):  
Nikolay Lugovoy ◽  
Nikolay Lugovoy ◽  
Askar Ilyasov ◽  
Askar Ilyasov ◽  
Elena Pronina ◽  
...  
Keyword(s):  
Baltic Sea ◽  
Coastal Zone ◽  
Coastal Erosion ◽  
Laser Scanner ◽  
Terrestrial Laser Scanner ◽  
The Baltic Sea ◽  
Coastal Dynamics ◽  
Kaliningrad Region ◽  
The Baltic

The paper describes application of the terrestrial laser scanner for investigation of coastal dynamics of the Svetlogorskaya Bay, Baltic Sea. Methods of investigation and results of surveys repeated over the two consecutive years for quantification of coastal erosion and slope processes within the coastal zone are presented.

Results of studying the dimensional accuracy of the bases of complete removable prostheses made using 3D printing and traditional technologies

2020 ◽  
pp. 34-39
Author(s):  
Vokulova Yu.A. Vokulova ◽  
E.N. Zhulev
Keyword(s):  
3D Printing ◽  
Traditional Method ◽  
Laser Scanning ◽  
Laser Scanner ◽  
Digital Technologies ◽  
Dimensional Accuracy ◽  
3D Printer ◽  
Significance Level ◽  
Average Value ◽  
The Difference

This article presents the results of studying the dimensional accuracy of the bases of complete removable prostheses made using a 3D printer and the traditional method. Bases of complete removable prostheses were made using an intraoral laser scanner iTero Cadent (USA) and a 3D printer Asiga Max UV (Australia). To study the dimensional accuracy of the bases of complete removable prostheses, we used the DentalCAD 2.2 Valletta software. The Nonparametric Wilcoxon W-test was used for statistical analysis of the obtained data. We found that the average value of the difference with the standard for bases made using digital technologies is 0.08744±0.0484 mm. The average value of the difference with the standard for bases made by the traditional method is 0.5654±0.1611 mm. Based on these data, we concluded that the bases of complete removable prostheses made using modern digital technologies (intraoral laser scanning and 3D printer) have a higher dimensional accuracy compared to the bases of complete removable prostheses made using the traditional method with a significance level of p<0.05 (Wilcoxon's W-test=0, p=0.031). Keywords: digital technologies in dentistry, digital impressions, intraoral scanner, 3D printing, ExoCAD, complete removable dentures.

Chronofact Names: Their Transformations in Contemporary MassMedia

2020 ◽  
pp. 92-102
Author(s):  
Irina Kryukova
Keyword(s):  
Proper Names ◽  
Contextual Analysis ◽  
Terrorist Attacks ◽  
Theoretical Understanding ◽  
New Words ◽  
Technological Disasters ◽  
Long Time ◽  
Tragic Event ◽  
Russian Media ◽  
Historical Periods

The article presents the results of the study devoted to the semantic transformations of chronofact names understood as proper names referring to resonance events that are often tragic. In spite of many studies devoted to the processes of new words activation in various historical periods, proper names, with rare exceptions, are not included in the phenomena under the study. The objective of the following research is to identify universal features of chronofact names that make it possible to study these names as a separate group of onyms with their specific semantic and motivational characteristics. The proper names that have become the symbols of technological disasters, terrorist attacks, antigovernment actions, etc. (Chernobyl, Fukushima, Nord-Ost, Beslan, Bolotnaya Square, Maydan, and so on) served as the material of this study. Contextual analysis of these names in Russian media in the last decades, as well as component analysis of the connotative semantics of each name, allowed the author to select several common characteristics of chronofact names. First, every chronofact name undergoes rapid semantic transformations in the following order: it denotes a certain object – it denotes a singular tragic event (metonymy) and the development of a connotative onym – it denotes any other similar event (metaphor) and develops the characteristics of a precedent name. Second, chronofact names display same lexical and grammatical signs and they are used in homogenous contexts. Third, under certain extra-linguistic conditions, chronofact names are capable of expanding their figurative meanings and denoting a genuine notion for a long time. The material under the analysis is of interest to theoretical understanding of connotation as well as lexicographic description.

THE CORE AND PERIPHERY OF THE CURRENT CULTURE OF ARTISTIC CREATION ABOUT THE GREAT PATRIOTIC WAR IN THE STUDENTS’ VIEWS

2020 ◽  
Vol 6 (3) ◽  
pp. 130-149
Author(s):  
Elena N. NARKHOVA ◽  
Dmitry Yu. NARKHOV
Keyword(s):  
Historical Memory ◽  
Soviet Period ◽  
Russian Society ◽  
Student Culture ◽  
The Core ◽  
Musical Works ◽  
Great Patriotic War ◽  
History Of ◽  
Current Student ◽  
Historical Periods

This article analyzes the degree of demand for works of art (films and television films and series, literary and musical works, works of monumental art) associated with the history of the Great Patriotic War among contemporary students. This research is based on the combination of two theories, which study the dynamics and statics of culture in the society — the theory of the nucleus and periphery by Yu. M. Lotman and the theory of actual culture by L. N. Kogan. The four waves of research (2005, 2010, 2015, 2020) by the Russian Society of Socio¬logists (ROS) have revealed a series of works in various genres on this topic in the core structure and on the periphery of the current student culture; this has also allowed tracing the dynamics of demand and the “movement” of these works in the sociocultural space. The authors introduce the concept of the archetype of the echo of war. The high student recognition of works of all historical periods (from wartime to the present day) is shown. A significant complex of works has been identified, forming two contours of the periphery. Attention is drawn to the artistic work of contemporary students as a way to preserve the historical memory of the Great Patriotic War. This article explains the necessity of preserving the layer of national culture in order to reproduce the national identity in the conditions of informational and ideological pluralism of the post-Soviet period. The authors note the differentiation of youth due to the conditions and specifics of socialization in the polysemantic sociocultural space.

ACCURACY EVALUATION OF MEASUREMENT WITH LASER SCANNER EQUIPPED UAV FOR EARTHWORKS CONSTRUCTION MANAGEMENT

2018 ◽  
Vol 74 (2) ◽  
pp. II_125-II_135
Author(s):  
Shigenori TANAKA ◽  
Satoshi KUBOTA ◽  
Ryuichi IMAI ◽  
Kenji NAKAMURA ◽  
Yuhei YAMAMOTO ◽  
...  
Keyword(s):  
Construction Management ◽  
Laser Scanner ◽  
Accuracy Evaluation

APPLICABLE STUDY OF UAV GREEN LASER SCANNER FOR MAINTENANCE OF COASTAL CONSERVATION FACILITY

2020 ◽  
Vol 76 (2) ◽  
pp. I_1393-I_1398
Author(s):  
Shinji NAKAYAMA ◽  
Yoshiki ORITANI ◽  
Tetsuya TAKESHITA ◽  
Takayuki ISHII ◽  
Kintoki TANAKA ◽  
...  
Keyword(s):  
Laser Scanner ◽  
Green Laser ◽  
Coastal Conservation
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