Chapter 3: Basic Experimental Work

2021 ◽  
pp. 32-65
Keyword(s):  
Experimental Work

Research into the Effect of Photometric Flicker Event on the Perception of Office Workers

2019 ◽  
pp. 22-27
Author(s):  
Cenk Yavuz ◽  
Ceyda Aksoy Tırmıkç ◽  
Burcu Çarklı Yavuz
Keyword(s):  
Experimental Work ◽  
Psychological Problems ◽  
Office Workers ◽  
Questionnaire Study ◽  
Fast Growing ◽  
Lighting Conditions ◽  
Lighting Systems ◽  
Enormous Number

Today the number of office workers has reached to an enormous number due to the fast-growing technology. Most of these office workers spend long hours in enclosed spaces with little/no daylight penetration. The lack of daylight causes physiological and psychological problems with the workers. At this point lighting systems become prominent as the source and the solution of the problem. Photometric flicker event which arises in the lighting systems can sometimes become visible and brings a lot of issues with it. In this paper, an experimental work has been done to investigate the effect of flicker. For this purpose, the flicker values of 3 different experiment rooms for different lighting conditions and scenarios have been measured and a questionnaire study has been carried out in the experiment rooms with 30 participants. In conclusion, the effect of the flicker event on the volunteers have been classified and some methods have been proposed not to experience flicker effects.

THE ROLE OF LITERACY METHODS IN MASTERING OF WRITTEN LANGUAGE BY STUDENTS WITH DEVELOPMENTAL DYSLEXIA

2019 ◽  
Vol 7 (1) ◽  
pp. 10-18
Author(s):  
Tsvetanka Tsenova
Keyword(s):  
Experimental Work ◽  
Developmental Dyslexia ◽  
Reading Skills ◽  
Writing Skills ◽  
Written Language ◽  
Reading And Writing ◽  
Empirical Verification ◽  
Literacy Methods ◽  
The Relationship

This article focuses on the relationship between literacy methods applied at school and the emergence of serious difficulties in mastering reading and writing skills that shape the developmental dyslexia. The problem was analyzed theoretically and subjected to empirical verification. Experimental work was presented which aims to study the phonological and global reading skills of 4- th grade students with and without dyslexia. Better global reading skills have been demonstrated in all tested children, and this is much more pronounced in those with dyslexia than their peers without disorders. Hence, the need to develop a special, corrective methodology for literacy of students with developmental dyslexia consistent with their psychopathological characteristics.

Efficient Steganography Algorithm Based On DCT And Entropy Thresholding Technique

2018 ◽  
Vol 8 (1) ◽  
pp. 45
Author(s):  
Satvir Singh
Keyword(s):  
Relative Entropy ◽  
Experimental Work ◽  
Random Function ◽  
Signal To Noise Ratio ◽  
Binary Sequence ◽  
Threshold Value ◽  
Absolute Difference ◽  
Secret Message ◽  
Signal To Noise ◽  
Confidential Information

Steganography is the special art of hidding important and confidential information in appropriate multimedia carrier. It also restrict the detection of  hidden messages. In this paper we proposes steganographic method based on dct and entropy thresholding technique. The steganographic algorithm uses random function in order to select block of the image where the elements of the binary sequence of a secret message will be inserted. Insertion takes place at the lower frequency  AC coefficients of the  block. Before we insert the secret  message. Image under goes dc transformations after insertion of the secret message we apply inverse dc transformations. Secret message will only be inserted into a particular block if  entropy value of that particular block is greater then threshold value of the entropy and if block is selected by the random function. In  Experimental work we calculated the peak signal to noise ratio(PSNR), Absolute difference , Relative entropy. Proposed algorithm give high value of PSNR  and low value of Absolute difference which clearly indicate level of distortion in image due to insertion of secret message is reduced. Also value of  relative entropy is close to zero which clearly indicate proposed algorithm is sufficiently secure. 

The importance of segmental and main arteries of thorachic and abdomen aorta in collateral blood supply of the spinal cord (experimental work)

2018 ◽  
Vol 60 (3) ◽  
pp. 226-232
Author(s):  
L.A. Boсkeria ◽  
V.S. Arakelyan ◽  
A.Yu. Gorodkov ◽  
V.L. Khon ◽  
V.G. Papitashvili ◽  
...  
Keyword(s):  
Spinal Cord ◽  
Blood Supply ◽  
Experimental Work

Our words matter: acceptability, grammaticality, and ethics of research on singular 'they'-type pronouns

2018 ◽  
Author(s):  
Lauren Marie Ackerman
Keyword(s):  
Empirical Evidence ◽  
Experimental Work ◽  
Ethical Issues ◽  
Singular Form ◽  
Starting Point ◽  
Ethics Of Research ◽  
Formal Properties

Until now, there has been little experimental work investigating the processing and formal properties of the singular they suite of pronouns. As scientific and popular attention to singular they increases, it will be critical for research to acknowledge theoretical and ethical issues regarding discussion of this phenomenon. This commentary uses the recent paper by Doherty & Conklin (2017) as a starting point to discuss issues surrounding work on the various forms of singular they. It concludes that there is sufficient theoretical and empirical evidence to claim they has a grammatically singular form (at least in colloquial English). It also recommends care be taken in academic discussions of the grammaticality and acceptability of terms which are associated with marginalised communities.

Результаты опытно-экспериментальной работы по формированию коммуникативной компетентности преподавателей в процессе повышения квалификации

2019 ◽  
pp. 66-69
Author(s):  
Гульжан Назарматова
Keyword(s):  
Key Words ◽  
Research Methods ◽  
Experimental Work ◽  
Communicative Competence ◽  
Communication Competence ◽  
Diagnostic Tools ◽  
Advanced Training ◽  
Teacher Communication

Аннотация: В статье рассматриваются результаты опытно-экспериментальной работы по формированию коммуникативной компетентности преподавателей педагогических направлений в процессе повышения квалификации. Представлены основные этапы, направления, база и методы исследования опытной работы. Описывается диагностический инструментарий по определению уровня сформированности коммуникативной компетентности преподавателей. Проводится анализ данных констатирующего и формирующего экспериментов по формированию коммуникативной компетентности преподавателей в процессе повышения квалификации. Ключевые слова: преподаватель, коммуникативная компетентность, повышение квалификации, опытно - экспериментальная работа. Аннотация: Макалада квалификациясын жогорулатуу процессиндеги педагогикалык багытындагы мугалимдердин байланыш компетенттүүлүгүн калыптандыруу боюнча тажрыйба ишинин жыйынтыктары жөнүндө айтылат. Эксперименталдык иштин изилдөө ыкмалары, базасы, негизги этаптары, жана багыттары берилет. Мугалимдердин байланыш компетенттүүлүгүн калып- тандыруу көлөмүн аныктоо үчүн диагностикалык каражаттар айтылат. Квалификациясын жогорулатуу процессиндеги мугалимдердин байланыш компетенттүүлүгүн калыптандыруу боюнча аныктоо жана калыптандыруучу эксперименттериндеги алынган маалыматтардын анализи келтирилет. Түйүндүү сөздөр: окутуучу, байланыш компетенттүүлүк, квалификациясын жогорулатуу, эксперименталдык тажрыйба иш. Abstract: The article discusses the results of experimental work on the formation of communicative competence of teachers of pedagogical areas in the process of advanced training. The main stages, directions, base and research methods of experimental work are presented. The diagnostic tools for determining the level of formation of communicative competence of teachers are described. The data of ascertaining and formative experiments on the formation of communicative competence of teachers in the process of advanced training are analyzed. Key words: teacher, communication competence, qualification advancement, skilled - experimental work.

Opportunities for the influence of humanitarian subjects on the spiritual and moral development of the cadets of higher educational organizations of the MIA of Russia

2020 ◽  
Vol 2020 (3) ◽  
pp. 194-201
Author(s):  
Zlata Vasileva
Keyword(s):  
Moral Development ◽  
Experimental Work ◽  
Personal Development ◽  
University Education ◽  
Moral Foundations ◽  
Educational Organizations ◽  
Wide Range ◽  
Higher Educational ◽  
Interdisciplinary Interaction ◽  
Development Of Students

The relevance of the topic is related to the importance of humanitarian education for the formation of worldview and spiritual and moral foundations of the personality. The need for humanistic and humanitarian orientation of University education is justified by many pedagogues. Universities of the MIA of Russia provide students with the opportunity to master a wide range of Humanities. The article presents the results of a study that developed a system of Humanities that affect the spiritual and moral development of students. In the course of the analysis, the worldview and psychological and pedagogical blocks of Humanities were identified, and the number of hours for each course of study was indicated. In addition, the article shows the interdisciplinary connections of Humanities that integrate knowledge on the spiritual and moral sphere of personal development. There are four thematic modules of Humanities: “Man”, “Society”, “Activity”, “Universe”. The analysis of the interdisciplinary interaction of the selected thirteen Humanities is carried out. Examples of forms and methods of formative work are shown, according to the curricula for the mastering these disciplines. The topics, their content, forming competencies, forms and methods of experimental work are correlated, which allows us to clearly trace the interdisciplinary connections.

Further Computational Investigations Into Aero-Engine Bearing Chamber Off-Take Flows

2010 ◽  
Author(s):  
Adam Robinson ◽  
Carol Eastwick ◽  
Herve´ Morvan
Keyword(s):  
Experimental Work ◽  
Symmetry Plane ◽  
Two Phase ◽  
Pipe System ◽  
Aero Engine ◽  
Gravity Driven ◽  
Computational Fluid Dynamics Cfd ◽  
Modelling Assumptions ◽  
Static Head ◽  
Engine Bearing

Within an aero-engine bearing chamber oil is provided to components to lubricate and cool. This oil must be efficiently removed (scavenged) from the chamber to ensure it does not overheat and degrade. Bearing chambers typically contain a sump section with an exit pipe leading to a scavenge pump. In this paper a simplified geometry of a sump section, here simply made of a radial off-take port on a walled inclined plane, is analysed computationally. This paper follows on work presented within GT2008-50634. In the previous paper it was shown that simple gravity draining from a static head of liquid cold be modelled accurately, for what was akin to a deep sump situation fond in integrated gear boxes for example. The work within this paper will show that the draining of flow perpendicular to a moving film can be modelled. This situation is similar to the arrangements found in transmission bearing chambers. The case modelled is of a walled gravity driven film running down a plane with a circular off-take port, this replicates experimental work similar to that reported in GT2008-50632. The commercial computational fluid dynamics (CFD) code, Fluent 6 [1] has been employed for modelling, sing the Volume of Fluid (VOF) approach of Hirt and Nichols [2, 3] to capture the physics of both the film motion and the two phase flow in the scavenge pipe system. Surface tension [4] and a sharpening algorithm [5] are used to complement the representation of the free surface and associated effects. This initial CFD investigation is supported and validated with experimental work, which is only depicted briefly here as it is mainly sued to support the CFD methodology. The case has been modelled in full as well as with the use of a symmetry plane running down the centre of the plane parallel to the channel walls. This paper includes details of the meshing methodology, the boundary conditions sued, which will be shown to be of critical importance to accurate modelling, and the modelling assumptions. Finally, insight into the flow patterns observed for the cases modelled are summarised. The paper further reinforces that CFD is a promising approach to analysing bearing chamber scavenge flows although it can still be relatively costly.

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