Features Of Digital Colourimetry Application in Modern Scientific Research

2021 ◽  
pp. 146-158
Author(s):  
Vera L. Zhbanova
Keyword(s):  
Digital Circuit ◽  
Digital Impression ◽  
Image Perception ◽  
Colour Perception ◽  
Separation Systems ◽  
Advantages And Disadvantages ◽  
Digital Colorimetry ◽  
Colour Parameters ◽  
Object Of Study ◽  
Photodetector Arrays

The paper is devoted to digital colorimetry, has a character of review, and deals with the main issues of colorimetric calculations and transformations during digital colour registration. The presented materials are intended to help researchers already at the stage of registration to exclude colour losses and, accordingly, errors of measurements, taking into account the following features: – The connection of colorimetric measurements with digital circuit design is shown, which results in digital colorimetry as a tool for acquiring and processing accurate colour information about the object of study; – Important issues such as: selection criteria for parameters of photodetector arrays, colour separation systems, working colour spaces, formats of colour images, and post-processing methods for colour information of images; – Colour separation systems of photodetector arrays, their advantages and disadvantages, influence on the registration result and prospects of new developments in this field are described; – Working colour spaces of digital recording systems, and also colour systems are considered allowing maximum saving colour parameters of digital impression; – To understand human colour perception, the problem of hardware-independent reproduction of colour and images after image registration is considered; – It is proposed to use such colorimetric systems in the analysis of colour parameters in scientific studies, which give understanding of human image perception in the analysis of image quality. The paper gives a broad overview of the digital colorimetry main aspects and researches on this topic for specialists who use digital colour recorders as a tool in their experimental research. This material can also be useful for specialists with deep knowledge in colorimetry who use digital colour recorders as part of their main tasks in the definite field of science and technology.

scholarly journals 3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1982 ◽  
Author(s):  
Marco Cicciù ◽  
Luca Fiorillo ◽  
Cesare D’Amico ◽  
Dario Gambino ◽  
Emanuele Mario Amantia ◽  
...  
Keyword(s):  
New Technologies ◽  
Digital Impression ◽  
New Device ◽  
Advantages And Disadvantages ◽  
Impression Technique ◽  
Impression Materials ◽  
Key Factor ◽  
Dental Impression ◽  
Digital Or

The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.

scholarly journals CHOICE THE RESTORING METHOD OF DETAILS BY QUALITY CRITERIA

2020 ◽  
Vol 1 (46) ◽  
pp. 83-91
Author(s):  
Horbenko S ◽  
Keyword(s):  
Surface Layer ◽  
Technological Process ◽  
Quality Criteria ◽  
Technological Parameters ◽  
Ion Nitriding ◽  
Optimal Method ◽  
Advantages And Disadvantages ◽  
Modification Process ◽  
Object Of Study ◽  
Quantitative Indicators

The purpose of the article is to analyze the existing methods of surface layer modification and to choose such a method of restoration of parts, which takes into account the quality criteria that affect the op­erational properties and ensure their required level after the modification process. The main methods of surface layer modification are considered in the article, the main advantages and disadvantages of technological process that can be applied are analyzed and systematized. In the article quantitative indicators of the main technological parameters of each of the considered methods of restoration of operational properties are considered and presented as a table. According to the results of the analysis, a method for choosing a rational technological process of res­toration was proposed and criteria were formed according to which the most optimal method of surface layer modification would be fulfilled. . The object of study is the quality criteria and the basic methods for restoring the performance of en­gine parts that satisfy these criteria. Using the developed methodology and the data from Table 2, a diagram of the dependence of energy consumption costs, which will be consumed when provided with a layer of certain hardness for a given thickness, was constructed. Based on the analysis, which included a comparison of the characteristics of surface hardening meth­ods and their evaluation by quality criteria, it was found that the most promising method is ion nitriding and laser thermal hardening. KEYWORDS: MODIFICATION, SURFACE LAYER, RESTORATION, QUALITY CRITERIA

Image perception of chain hotel companies by consumers

2021 ◽  
Vol 7 (3D) ◽  
pp. 232-238
Author(s):  
Viktoriya Viktorovna Anisimova ◽  
Tatiana Aleksandrovna Volkova
Keyword(s):  
Hotel Industry ◽  
Unanimous Opinion ◽  
Image Perception ◽  
Human Needs ◽  
Advantages And Disadvantages ◽  
Positive Image ◽  
Organizational Work ◽  
Life Path ◽  
A Chain ◽  
Potential Customers

The hotel industry is growing and changing every time human needs change. There are a huge number of chain hotel companies ready to meet the needs of potential customers. In the conditions of ever-increasing competition, hotel companies are faced with the task of creating a positive image. The image itself is a mandatory element of a hotel brand and exists throughout its entire life path. Creating a positive image requires a lot of creative and organizational work. The purpose of the research is to determine the degree of influence of the image and reputation of a chain hotel company on the consciousness of consumers. The problem with the study is that it is impossible to accurately determine the unanimous opinion of consumers. Each brand has advantages and disadvantages, some consumers have used the services of chain hotel companies, and some have not, however, this will help to consider different sides of consumer views.

scholarly journals Methodical Approaches to the Assessment of Budget Efficiency of Territories

2020 ◽  
Vol 24 (1) ◽  
pp. 125-131
Author(s):  
G. Nedopad ◽  
Keyword(s):  
Financial Management ◽  
Intergovernmental Relations ◽  
Local Level ◽  
The State ◽  
Structural Development ◽  
Advantages And Disadvantages ◽  
Study Results ◽  
Methodological Approaches ◽  
Object Of Study ◽  
The Individual

Annotation. Introduction. According to the principles of the program-target method of budgeting, the diagnosis of budget efficiency of territories is the key goal of assessing the implementation of regional policy and improving the efficiency of budget funds, which, in turn, will not only determine the effectiveness of this process Therefore, assessing the level of budget efficiency of territories is a mandatory element of financial management at the local level. The purpose of the article is to study the methodological approaches of scientists to assess the budget efficiency of territories and on their basis the formation of the author’s directions of assessment of the object of study. Results. It is investigated that in recent years there have been positive trends in the socio-economic development of the state as a whole and its regions in particular, but still the development of individual regions remains asymmetric due to the inability of territories to accumulate the necessary financial resources to local budgets. places, which, in turn, does not contribute to providing appropriate conditions for the structural development of the regions. The existing methodological approaches are systematized, their advantages and disadvantages are analyzed and it is found that they are based on traditional methodological principles and provide for the analysis of absolute, relative indicators, integrated indices and rankings, etc.; do not have a single vision for a set of indicators; mainly focus on assessing the structure of the budget and the individual components of its revenue and expenditure parts. The necessity of improvement of a technique of diagnostics of budgetary efficiency of territories which will provide the analysis in the following directions is substantiated: the state of the budget; financial capacity of the budget; intergovernmental relations; financial independence; budget load; budgeting efficiency; budget management. Conclusions. The system of the formed directions will allow to estimate a level of budgetary efficiency of territories of Ukraine in the conditions of decentralization and to develop long-term budgetary strategy on places. Keywords: territory; methodical approaches; diagnostics; budget efficiency.

scholarly journals On the Eccentrically Loaded Socket Footings With Cut - Off Pyramid Shaped Socket

2019 ◽  
Vol 15 (1) ◽  
pp. 58-69
Author(s):  
Maciej Major ◽  
Izabela Major ◽  
Daniela Kuchárová ◽  
Krzysztof Kuliński
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Analyses ◽  
Axial Loads ◽  
Advantages And Disadvantages ◽  
Numerical Studies ◽  
Knowing That ◽  
Frost Depth ◽  
Object Of Study ◽  
Acting Load

AbstractIn this work considerations concerning eccentrically loaded socket footing with cut-off pyramid shaped socket were presented. As an object of study sloped footing with 1.40 m height, corresponding to the maximum frost depth has been adopted. Knowing that in practice there are no perfect pure axial loads, load applied on the eccentricity has been taken into considerations. Eccentric loads result in footing rotation in the direction of eccentricity and acting load, hence one footing end is imbedding into the ground, whereas second end tries to rise up. To observe that phenomenon, elastic type of support under the foundation was introduced corresponding to the naturally humid sand with medium compaction. Presented in this paper considerations of innovative connection technology between footing and column were based on performed numerical studies. Advantages and disadvantages of presented footing in comparison to normal socket footings solutions were widely discussed. Numerical analyses were performed with the utilization Finite Element Method based SolidWorks software.

scholarly journals Representaciones docentes sobre las modalidades educativas sustentadas en las Tecnologías de la Información y la Comunicación (TIC), en el Centro Universitario del Norte

2019 ◽  
pp. 23-31
Author(s):  
Diego Huízar-Ruvalcaba ◽  
Silvia Elena Mota-Macias ◽  
Marco Antonio Martínez-Márquez ◽  
María Elena Martínez-Casillas
Keyword(s):  
Information And Communication Technologies ◽  
Social Representations ◽  
Communication Technologies ◽  
Qualitative Investigation ◽  
Advantages And Disadvantages ◽  
Units Of Analysis ◽  
Academic Activities ◽  
Information And Communication ◽  
Object Of Study

The integration of Information and Communication Technologies (ICT) in the learning processes, have radically transformed the content approach in educational programs, as well as a change of role in the actors; Students become more self-managing and teachers become guides or advisors in the generation of knowledge and skills. The objective of the work is to know in depth the representations of teachers on educational modalities supported by ICTs, what are the possible advantages and disadvantages, as well as some of their reflections on their implementation in the CUNorte. The approach to the object of study is carried out through a qualitative investigation of descriptive type, in which four units of analysis based on the theory of social representations are considered. The paper rescues the experience of how the role of the actors in the performance of their academic activities has been transformed with the implementation of educational modalities based on ICT.

scholarly journals Prospects of using penetrated cement concrete in the construction of transport infrastructure objects

2021 ◽  
pp. 69-83
Author(s):  
Igor Gameliak ◽  
◽  
Innesa Rutkovska ◽  
Alla Herasimenko ◽  
Marya Filishchuk ◽  
...  
Keyword(s):  
Traffic Safety ◽  
Laboratory Tests ◽  
International Experience ◽  
Transport Infrastructure ◽  
Pervious Concrete ◽  
Concrete Pavements ◽  
Domestic Literature ◽  
Advantages And Disadvantages ◽  
Rainy Weather ◽  
Object Of Study

This article presents the analysis of the international experience of the use of pervious concrete in transport infrastructure. It provides the advantages and disadvantages of the material and the results of personal laboratory tests of relevant concrete samples. The object of the research is the use of pervious concrete in the construction of transport infrastructure. The objective of the paper is to justify the use of pervious concrete in the construction of transport infrastructure by analyzing previous international experience and lab tests of the corresponding concrete samples. Research methods included a analysis of the international and domestic literature, the evaluation of the experience in the use of the pervious concrete, and laboratory tests of the corresponding concrete samples. A review of the world experience connected with research of pervious (draining) concrete, installation and operation of layers of aerodrome surface made of it, proved their technical and economic relevance and effectiveness of their application. Pervious concrete is a material with high open porosity, which provides good sound-absorbing properties and drainage ability together with roughness, smoothness, and transverse friction. These are advantages of pervious concrete pavements, according to foreign studies: a rapid removal of water from the surface of the pavements in case of rain and improved drainage of road and airfield pavements reduce the risk of aquaplaning vehicles and increase traffic safety in rainy weather; increased and stable surface roughness; reduced level of noise provided by vehicles. The draining ability of the pavements makes it almost dry. It also has a high degree of sound absorption. The results of the article can be implemented in various technologies of construction and repair of transport infrastructure. The search for the optimal composition of pervious concrete for its further use in the technology of construction and repair of various objects is the main purpose of predictive assumptions about the development of the object of study.

GSPN-Based Analysis of Storage Infrastructures for Rendering System

2011 ◽  
Vol 219-220 ◽  
pp. 1359-1362
Author(s):  
Zhi Guo Hong ◽  
Yong Bin Wang ◽  
Min Yong Shi
Keyword(s):  
Numerical Simulation ◽  
Petri Nets ◽  
Distributed Storage ◽  
Stochastic Petri Nets ◽  
Advantages And Disadvantages ◽  
Index Analysis ◽  
Generalized Stochastic Petri Nets ◽  
Simulation Results ◽  
Object Of Study ◽  
Distributed Rendering

By taking transmission delay into account, the optimization of distributed rendering environment (DRE) was concerned in this paper. Considering distributed animation rendering environment as the object of study, two Generalized Stochastic Petri Nets (GSPN) models for “completely distributed storage” infrastructure (CDSI) and “hybrid distributed storage” one (HDSI) were constructed respectively. Moreover, by choosing average time delay as the performance index, analysis was conducted by applying the equivalent formulas for solving Stochastic Petri Nets (SPN) models of serial and parallel types to these two GSPN models. Based on comparison of such models’ numerical simulation results, conclusion on these two infrastructures’ advantages and disadvantages is deprived thereby. It offers important quantitative foundations for choosing appropriate storage schemes and scheduling algorithms.

scholarly journals MOOC “Innovación Educativa y Desarrollo Profesional. Posibilidades y Límites de las TIC”. Una Experiencia desde la Educomunicación en el Proyecto Europeo ECO

2015 ◽  
Vol 4 (3) ◽  
pp. 299 ◽  
Author(s):  
Javier Gil Quintana
Keyword(s):  
Learning Community ◽  
Social Inclusion ◽  
Qualitative Methodology ◽  
Educational Communication ◽  
Educational Innovation ◽  
Advantages And Disadvantages ◽  
The Social ◽  
Innovación Educativa ◽  
E Learning ◽  
Object Of Study

The European Project (E-learning, Communication, includes) ECO is potentializing an educational model that seeks to avoid all kinds of hierarchical and one-way communication, since the new reality of the MOOC. Based on the principles of equity, social inclusion, accessibility, autonomy and openness, the empowerment of students becomes reality with this proposal for an innovative training, breaking the barriers of the digital space of the course MOOC to affect the social layer from the interaction in social networks.<p>Taking as a referencea MOOCof ECO, the results presented in this study have been analyzed from a qualitative methodology opting for analysis, such as intentional sample, virtual learning community that develops in the course. It is intended to achieve with the research aims to analyze the written speech that keep teachers and participants of the MOOC "Educational innovation and professional development. The possibilities and limitations of ICT", within the forums and groups. It is opted for this type of analysis to identify the advantages and disadvantages that the members of the learning community value around the course object of study. According to figure in the project itself, this proposal is presented as an invitation to reflect on the role that the massive formation, online and open plays today, in any learning process, a perspective in educational communication.</p>

scholarly journals MODERN WAYS OF USING ALTERNATIVE FUELS IN AUTOMOBILE DIESEL ENGINES

2020 ◽  
Vol 1 (46) ◽  
pp. 145-152
Author(s):  
Korpach A ◽  
◽  
Levkivskyi O ◽  
Keyword(s):  
Diesel Engines ◽  
Alternative Fuels ◽  
Fuel Efficiency ◽  
Alternative Fuel ◽  
Biodiesel Fuel ◽  
Exhaust Gases ◽  
Diesel Fuels ◽  
Advantages And Disadvantages ◽  
Object Of Study ◽  
Biodiesel Fuels

The article considers the current state and prospects for alternative fuels using in diesel engines of vehicles that are in operation. The object of study - alternative diesel fuels. The purpose of the work - determine the most efficient alternative fuel for automotive diesel engines that are in operation, with the aim of reducing the consumption of oil fuels and reducing emissions of harmful substances with exhaust gases. The research method - analytical. A number of groups of alternative fuels that can be used in automotive diesel engines are considered, the advantages and disadvantages of each group of fuels are analyzed. It has been established that alternative fuels derived from vegetable oils - biodiesel fuels - meet the most fully met requirements. Comparison of the effectiveness of biodiesel fuel from rapeseed, sunflower and soybean oil in terms of changes in fuel efficiency and toxicity of exhaust gases compared to diesel fuel of mineral origin. It has been established that the considered biodiesel fuels may be used in automotive diesel engines, which will reduce fuel consumption of petroleum origin. The use of biodiesel fuels, in addition, reduces environmental pollution by greenhouse and toxic exhaust gases. It has been established that when a diesel engine runs on biodiesel fuels, the content of the main harmful components in exhaust gases (mono-oxides of carbon, hydrocarbons, soot) decreases. To reduce the content of nitrogen oxides in the exhaust gases, it is necessary to reduce the initial injection advance angle. The results shown in the article can be used for further research on the alternative diesel fuels using effectiveness. KEYWORDS: ALTERNATIVE FUEL, DIESEL, BIODIESEL FUEL, ECOLOGY

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