scholarly journals Experimental Investigation of a Helium-Cooled Breeding Blanket First Wall under LOFA Conditions and Pre-Test and Post-Test Numerical Analysis

2021 ◽  
Vol 11 (24) ◽  
pp. 12010
Author(s):  
Bradut-Eugen Ghidersa ◽  
Bruno Gonfiotti ◽  
André Kunze ◽  
Valentino Di Marcello ◽  
Mihaela Ionescu-Bujor ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Practical Experience ◽  
First Wall ◽  
Test Analysis ◽  
Fusion Safety ◽  
Post Test ◽  
Fast Transients ◽  
Set Up ◽  
Definition Of ◽  
Insight Into

The experimental investigation of a prototypical set-up simulating a loss of flow accident in a helium-cooled breeding blanket first wall mock-up under typical heat load conditions is presented. The experimental campaign reproduces the expected DEMO thermal-hydraulics conditions during normal and off-normal situations and aims at providing some insight into the fast transients associated with the loss of flow in the blanket first wall. The experimental set-up and the definition of the experimental matrix are discussed, including pre-test analysis performed in support of these activities. The major experimental results are discussed, and a procedure of using the acquired data for validating and calibrating the RELAP-3D model of the mock-up is introduced. All these activities contributed to the creation of a relevant theoretical and practical experience that can be used in further studies concerning incidental transients in real-plant scenarios in the framework of DEMO plant fusion safety activities.

Empowering or Oppressive? Breast Implants as a Dialogue

2017 ◽  
Author(s):  
Jenna Bot ◽  
Elana Finestone
Keyword(s):  
Breast Augmentation ◽  
Cosmetic Surgery ◽  
Breast Implants ◽  
Set Up ◽  
Definition Of ◽  
Insight Into

For this dialogue, the authors propose to examine the topic of cosmetic surgery, specifically breast implants, and its implications. Our focus is to answer the question, “Is undergoing cosmetic surgery a mode of oppression or empowerment for women?” In order to gain some further insight into the matter, the authors set up a fictional situation. In this situation, two women, Elizabeth and Natalie, engage in a conversation about a famous female celebrity on the cover of a popular beauty magazine. This particular celebrity has just undergone breast augmentation surgery. Elizabeth and Natalie have very different opinions regarding this celebrity’s decision to get implants. This paper is a discussion of whether it is possible for women’s choices regarding cosmetic surgery to be free from ‘coercion’, the definition of ‘power’, and the price and privileges of achieving ‘beauty’.

The rise heights of low- and high-Froude-number turbulent axisymmetric fountains

2011 ◽  
Vol 691 ◽  
pp. 392-416 ◽  
Author(s):  
H. C. Burridge ◽  
G. R. Hunt
Keyword(s):  
Experimental Investigation ◽  
Main Body ◽  
Quasi Steady State ◽  
Initial Height ◽  
Initial Rise ◽  
Start Up ◽  
High Froude Number ◽  
Set Up ◽  
Rise Height ◽  
Insight Into

AbstractWe present the results of an experimental investigation across a broad range of source Froude numbers,$0. 4\leq {\mathit{Fr}}_{0} \leq 45$, into the dynamics, morphology and rise heights of Boussinesq turbulent axisymmetric fountains in quiescent uniform environments. Typically, these fountains are thought to rise to an initial height,${z}_{i} $, before settling back and fluctuating about a lesser (quasi-) steady height,${z}_{ss} $. Our measurements show that this is not always the case and the ratio of the fountain’s initial rise height to steady rise height,$\lambda = {z}_{i} / {z}_{ss} $, varies widely,$0. 5\lesssim \lambda \lesssim 2$, across the range of${\mathit{Fr}}_{0} $investigated. As a result of near-ideal start-up conditions provided by the experimental set-up we were consistently able to form a vortex at the fountain’s front. This enabled new insights into two features of the initial rise of turbulent fountains. Firstly, for$1. 0\lesssim {\mathit{Fr}}_{0} \lesssim 1. 7$the initial rise height islessthan the steady rise height. Secondly, for${\mathit{Fr}}_{0} \gtrsim 5. 5$, the vortex formed at the fountain’s front pinches off, separates from the main body and rises high above the fountain; there is thus a third rise height to consider, namely, the maximum vortex rise height,${z}_{v} $. From our observations we propose classifying turbulent axisymmetric fountains into five regimes (as opposed to the current three regimes) and present detailed descriptions of the flow in each. Finally, based on an analysis of the rise height fluctuations and the width of fountains in (quasi-) steady state we provide further insight into the physical cause of height fluctuations.

Towards the digital land reclamation

2020 ◽  
pp. 5-9
Author(s):  
Sergey Vasil'ev ◽  
Vyacheslav Schedrin ◽  
Aleksandra Slabunova ◽  
Vladimir Slabunov
Keyword(s):  
Retrospective Analysis ◽  
Land Reclamation ◽  
Practical Experience ◽  
Maximum Effect ◽  
Optimal Management ◽  
Scientific Potential ◽  
History Of ◽  
Definition Of ◽  
Further Development ◽  
Full Cooperation

The aim of the research is a retrospective analysis of the history and stages of development of digital land reclamation in Russia, the definition of «Digital land reclamation» and trends in its further development. In the framework of the retrospective analysis the main stages of melioration formation are determined. To achieve the maximum effect of the «digital reclamation» requires full cooperation of practical experience and scientific potential accumulated throughout the history of the reclamation complex, and the latest achievements of science and technology, which is currently possible only through the full digitalization of reclamation activities. The introduction of «digital reclamation» will achieve greater potential and effect in the modernization of the reclamation industry in the «hightech industry», through the use of innovative developments and optimal management decisions.

The specifics of mergers and acquisitions of innovative and technological companies

2020 ◽  
Vol 26 (5) ◽  
pp. 1186-1204
Author(s):  
A.V. Fedorov ◽  
Zh.S. Peredera
Keyword(s):  
Digital Technology ◽  
Comprehensive Analysis ◽  
Methodological Framework ◽  
Comparison Study ◽  
Technology Sector ◽  
Theoretical Perspectives ◽  
Innovation And Technology ◽  
Set Up ◽  
Definition Of ◽  
Traditional Approaches

Subject. The article reviews distinctions of M&A deals in innovation and technology. Objectives. We determine the specifics of innovative and technological companies and its impact on the synergy, process, finance, valuation of M&A deals. Methods. The article employs methods of generalization, comprehensive analysis, systematization, specification, comparison, study into trends and the structure. Graphics and tables are used to display the findings. Results. We conducted the content analysis of the term Mergers & Acquisitions, thus finding the divergence of foreign and the Russian approaches. We provide our own definition of the concept and analyzed the dynamics of the overall M&A market and the innovation and technological sector. The article describes operational distinctions of innovative and technological companies and compares them with conventional sectors. The article determined the specifics of synergy, process, finance, valuation of M&A deals in innovation and technology. Conclusions and Relevance. The innovation and technology sector saw M&A deals become more frequent for the recent five years. What distinguishes them is the number of startups and infant businesses, large M&A deals in order to develop their ecosystems, involve digital technology companies. Traditional approaches should be adapted for structuring M&A deals, their arrangement, financing and valuation of target companies. The findings can lay the groundwork for further studies into the specifics of the innovation and technology sector, M&A deals, and set up the methodological framework for the valuation of innovative and technological companies. The findings can also immediately support parties of M&A deals from theoretical perspectives.

Developing capital accounting practices in the integrated reporting system of agricultural organizations

2020 ◽  
Vol 23 (8) ◽  
pp. 906-921
Author(s):  
R.A. Alborov ◽  
S.M. Kontsevaya ◽  
S.V. Kozmenkova
Keyword(s):  
Original Method ◽  
Theory And Practice ◽  
Integrated Reporting ◽  
Governance System ◽  
Analysis And Synthesis ◽  
Agricultural Organizations ◽  
Set Up ◽  
Definition Of ◽  
Methodological Aspects ◽  
Agricultural Organization

Subject. This article deals with the theory-and practice-relevant issues of classification and content definition of different types of capital used as sources of operations financing, and recommendations for developing their accounting in agricultural organizations. Objectives. The article aims to substantiate the organizational and methodological aspects of capital accounting development to generate information on value reserve and creation of value as new in the organization's integrated reporting. The article also aims to define the classification and content of capital types as sources of financing for the organization's activities and develop recommendations for developing the accounting of the availability, increase, reduction or transformation of the relevant types of capital in the organization's business activities. Methods. For the study, we used the methods of analysis and synthesis, induction and deduction, analogy, and comparison. The scientific works of domestic specialists and regulations, including the International Standard on Integrated Reporting (IR) are the methodological basis of this work. Results. The article defines conceptual provisions and offers practical recommendations on the set-up and development of capital flow accounting in the corporate governance system of the agricultural organization. It clarifies the classification and economic content of capital as a source of funding for the organization's reproduction activities. The article also offers an original method of accounting for the value reserve (balances) and capital changes. Conclusions and Relevance. The practical application of the developed recommendations for value accounting and capital changes will help generate all the necessary information in the integrated reporting of the agricultural organization to assess its reserves of value, create value as new, economic, environmental, and social efficiency of the organization's activities. The results of the study can be used to develop the theory, methodology and techniques of accounting of capital types as sources of financing of value creation as a result of the agricultural organization's business activities.

Digital Economy: New Opportunities and Threats for the Development of the World Economy

2018 ◽  
Vol 11 (2) ◽  
pp. 18-26 ◽  
Author(s):  
I. A. Strelkova
Keyword(s):  
World Economy ◽  
Practical Experience ◽  
Business Environment ◽  
Digital Economy ◽  
The State ◽  
Market Exchange ◽  
Country Level ◽  
The World ◽  
Business Structures ◽  
Definition Of

The paper examines various approaches to the definition of the term «digital economy» in the scientific and business environment along with factors and forms of its development in different countries taking into account the specifics of the current stage of the Russian economy, which is a matter of particular importance in seeking new sources of the world economy growth. The subject of the research is opportunities and threats inherent in the process of digitalization of economies and their impact on the operation of international and national markets as well as the development of the world economy as a whole. The purpose of the paper was to analyze the practical experience in the formation and development of the digital economy in foreign countries and Russia and identify the changes it brings to the activities of state institutions and business structures, established rules of market exchange, the process of promotion and use of innovations. All the above made it possible to determine the country-level specifics of the digital economy evolution reveal the contradictory nature of its manifestations and justify the necessity for active participation of the state in stimulation and support of potentially promising digital innovations in various sectors of the economy. It is concluded that the level of the digital economy development depends on the real-sector performance, the maturity of markets, the state of the national economy. It is highlighted that the criteria for a comprehensive assessment of the results of the economy digitalization must be developed.

Teacher digital competence: bringing education to the next level

2020 ◽  
Vol 11 (1) ◽  
pp. 22-26
Author(s):  
S.V. Tsymbal ◽  
Keyword(s):  
Deep Learning ◽  
Learning Experiences ◽  
Digital Competence ◽  
Digital Revolution ◽  
Access Information ◽  
Set Up ◽  
Insight Into ◽  
The Way

The digital revolution has transformed the way people access information, communicate and learn. It is teachers' responsibility to set up environments and opportunities for deep learning experiences that can uncover and boost learners’ capacities. Twentyfirst century competences can be seen as necessary to navigate contemporary and future life, shaped by technology that changes workplaces and lifestyles. This study explores the concept of digital competence and provide insight into the European Framework for the Digital Competence of Educators.

PERBEDAAN PENGARUH COGNITIVE THERAPY (CT) DAN LOGO THERAPY TERHADAP DEPRESI PADA PASIEN DENGAN HEMODIALISIS DI RS WAVA HUSADA KEPANJEN

2017 ◽  
Vol 3 (2) ◽  
Author(s):  
Nia Agustiningsih ◽  
Setyawati Soeharto ◽  
Rinik Eko Kapti
Keyword(s):  
Cognitive Therapy ◽  
Hemodialysis Patient ◽  
Sampling Procedure ◽  
Mean Value ◽  
T Test ◽  
Physical Aspect ◽  
Test Design ◽  
Test Analysis ◽  
Post Test ◽  
Quasi Experimental

Abstract : Patient with chronical diease such as Hemodialysis more likely need psycotherapy because until now medical atention only focus on physical aspect. Psycotherapy that can be used on Hemodialysis that going through depression is cognitive therapy and logo therapy. This study was to analysed the difference of influence between cognitive therapy and logo therapy on Hemodialysis patient that going through depression. This study was used quasi experimental pre–post test design. Respondent taking part in this study was 15 respondent for cognitive therapy and 15 respondent for logo therapy with puporsive sampling procedure. Study was conducted on Hemodialysis unit on RS Wava Husada Kepanjen from 21 April until 26 Mey 2017. Data analysis used on this study was dependent t test  and independent t test. Dependent t test  analysis showed  significant value is 0,000 (less than < 0,05).Analysis showed  significant value is 0,000 (less than < 0,05) that means there is difference between cognitive therapy and logo therapy to decrease depression on hemodialysis patient with mean value cognitive therapy (1,62) dan logo therapy (3,82). Conclussion on this study is that logo therapy more effective to reduce depression on Hemodialysis patient than cognitive therapy so logo therapy can applicated in hemodialysis patient.Keyword : cognitive therapy, logo therapy, depression in hemodialysis patient Abstrak : Pasien dengan penyakit kronis dengan hemodialisis diperlukan psikoterapi karena selama ini fokus penanganan di pelayanan kesehatan hanya pada masalah fisik. Psikoterapi yang bisa digunakan pada pasien hemodialisis yang mengalami depresi adalah cognitive therapy dan logo therapy. Penelitian ini bertujuan untuk menganalisis perbedaan pengaruh cognitive therapy dan logo therapy terhadap depresi pada pasien dengan hemodialisis. Penelitian ini menggunakan desain penelitian quasi experimental pre – post test design. Jumlah responden dalam penelitian ini 15 responden untuk kelompok cognitive therapy dan 15 responden untuk kelompok logo therapy yang didapatkan dengan menggunakan tehnik purposive sampling. Penelitian dilakukan di unit hemodialisis RS Wava Husada Kepanjen mulai tanggal 21 April – 26 Mei 2017. Pemberian terapi dilakukan oleh peneliti sendiri yang telah mendapatkan lisensi dari perawat spesialis jiwa. Analisis data yang digunakan dalam penelitian ini adalah dependent t test dan independent t test. Hasil analisis dependent t test  pada kelompok sebelum dan setelah diberikan cognitive therapy dan logo therapy didapatkan hasil nilai signifikansi 0,000 < 0,05 yang berarti bahwa ada perbedaan skor depresi antara sebelum dan sesudah diberikan pemberian cognitive therapy dan logo therapy  Sedangkan hasil analisis independent t test menunjukkan bahwa nilai signifikansi 0,000 < 0,05 yang berarti  ada perbedaan yang bermakna antara cognitive therapy dan logo therapy dalam menurunkan depresi pada pasien dengan hemodialisis yaitu dengan rata – rata penurunan terhadap depresi untuk cognitive therapy dan logo therapy masing – masing yaitu 1,62 dan 3,86.  Hal ini berarti bahwa logo therapy lebih efektif menurunkan depresi pada pasien hemodialisis dari pada cognitive therapy. Berdasarkan hasil penelitian tersebut diharapkan bahwa logo therapy bisa diaplikasikan sebagai alternatif psikoterapi pada pasien hemodialisis.Kata Kunci: cognitive therapy, logo therapy, depresi pada pasien hemodialisis

Effects of PETTLEP imagery technique on precision skills: a study on drag flick in Pakistan hockey

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Shamsa Hashmi ◽  
Tanveer Akhtar ◽  
Maniha Hashmi
Keyword(s):  
Control Group ◽  
Imagery Ability ◽  
Physical Practice ◽  
Test Analysis ◽  
Skill Levels ◽  
Substantial Impact ◽  
Significant Difference ◽  
Post Test ◽  
Imagery Scripts ◽  
Complex Motor Skills

AbstractPresent study was aimed at investigating the role of Physical, Environmental, Task, Timing, Learning, Emotion and Perspective (PETTLEP) Imagery technique in the improvement of skill precision level of hockey drag flickers. For this purpose, both male (83) and female (38) hockey drag flickers (n=121) of age ranged between 17 and 27 years were selected from different hockey teams belonging to clubs, colleges, universities, departments, regional and national academies of Pakistan. Participants were made to undergo a Pretest-Intervention-Posttest research design consisted of 20 drag flicks and filling of SIAQ questionnaire. Drag Flick Precision Measurement Test (DFPMT) along with Sports Imagery Ability Questionnaire (SIAQ) were used to measure their skill precision levels and their imagery ability. The participants were classified into three categories as per their skill precision levels (Point-based), ranging from 48 Novice (upto12 points), 42 Intermediate (13–18 points) and 31 Elite (19 points and above), and were randomly assigned to one of four intervention groups; Physical Practice (PP), PETTLEP Imagery Practice (IP), Physical Practice+PETTLEP Imagery Practice Combination (CP), and No Practice (NP) Control group. Each group performed their respective tasks for 10 weeks through specially designed physical training programs aided by Imagery scripts. Paired sample t test analysis showed that all groups improved significantly (p<0.05) from pre- to post-test, and the CP group improved more with average improvement value of 8.32 for DFPMT and 5.39 for SIAQ (p<0.05) than the IP, PP and NP groups. However, there was no significant difference found between the PP (Sig. 0.73) and NP (Sig. 0.44) groups in SIAQ. Result extend prior research findings and suggests that PETTLEP Imagery practice used in combination with Physical practice has substantial impact on improving performance of complex motor skills, Present findings showed that PETTLEP imagery model was found to improve player’s precision skill levels, especially when it was combined with physical practice. However, further studies in this connection are needed.

scholarly journals The Sankara Nethralaya Tamil Nadu Essilor Myopia (STEM) Study—Defining a Threshold for Non-Cycloplegic Myopia Prevalence in Children

2021 ◽  
Vol 10 (6) ◽  
pp. 1215
Author(s):  
Aparna Gopalakrishnan ◽  
Jameel Rizwana Hussaindeen ◽  
Viswanathan Sivaraman ◽  
Meenakshi Swaminathan ◽  
Yee Ling Wong ◽  
...  
Keyword(s):  
Open Field ◽  
Tamil Nadu ◽  
Mean Difference ◽  
School Vision ◽  
Elite School ◽  
Prevalence Estimates ◽  
The Mean ◽  
Clinically Significant ◽  
Set Up ◽  
Definition Of

The aim of this study was to investigate the agreement between cycloplegic and non-cycloplegic autorefraction with an open-field auto refractor in a school vision screening set up, and to define a threshold for myopia that agrees with the standard cycloplegic refraction threshold. The study was conducted as part of the Sankara Nethralaya Tamil Nadu Essilor Myopia (STEM) study, which investigated the prevalence, incidence, and risk factors for myopia among children in South India. Children from two schools aged 5 to 15 years, with no ocular abnormalities and whose parents gave informed consent for cycloplegic refraction were included in the study. All the children underwent visual acuity assessment (Pocket Vision Screener, Elite school of Optometry, India), followed by non-cycloplegic and cycloplegic (1% tropicamide) open-field autorefraction (Grand Seiko, WAM-5500). A total of 387 children were included in the study, of whom 201 were boys. The mean (SD) age of the children was 12.2 (±2.1) years. Overall, the mean difference between cycloplegic and non-cycloplegic spherical equivalent (SE) open-field autorefraction measures was 0.34 D (limits of agreement (LOA), 1.06 D to −0.38 D). For myopes, the mean difference between cycloplegic and non-cycloplegic SE was 0.13 D (LOA, 0.63D to −0.36D). The prevalence of myopia was 12% (95% CI, 8% to 15%) using the threshold of cycloplegic SE ≤ −0.50 D, and was 14% (95% CI, 11% to 17%) with SE ≤ −0.50 D using non-cycloplegic refraction. When myopia was defined as SE of ≤−0.75 D under non-cycloplegic conditions, there was no difference between cycloplegic and non-cycloplegic open-field autorefraction prevalence estimates (12%; 95% CI, 8% to 15%; p = 1.00). Overall, non-cycloplegic refraction underestimates hyperopia and overestimates myopia; but for subjects with myopia, this difference is minimal and not clinically significant. A threshold of SE ≤ −0.75 D agrees well for the estimation of myopia prevalence among children when using non-cycloplegic refraction and is comparable with the standard definition of cycloplegic myopic refraction of SE ≤ −0.50 D.

Sign in / Sign up

Export Citation Format

Share Document