scholarly journals Design of a bladeless engine compressor based on magnetohydrodynamics

2021 ◽  
Author(s):  
Jana Stachová ◽  
◽  
Jozef Čerňan
Keyword(s):  
Scientific Information ◽  
Technical Analysis ◽  
Comprehensive Overview ◽  
Basic Principles ◽  
Scientific Observation ◽  
Engine Compressor ◽  
Professional Research ◽  
Modelling Methods ◽  
Aircraft Propulsion

This article is a technical analysis focusing on the design of a bladeless compressor based on magnetohydrodynamics and the possibilities of its use. The aim of this work is to design new solutions in the field of aircraft compressors and to provide a comprehensive overview of scientific information on the topic. Emphasis is also placed on acquainting the reader with the basic principles of magnetohydrodynamics and the possibilities of its application in the field of aircraft propulsion units. The work is a combination of professional research of scientific information in the field of plasma and magnetohydrodynamics and a practical part whose goal is to create new design of a bladeless compressor using scientific observation and modelling methods. This design was also examined in the work using the method of comparison, which aimed to examine the design and its behaviour in different configurations. The main goal was to combine essential and key information from the researched area and apply it in a completely new way in designing new solutions in issued area

scholarly journals Augmented Reality in Orthopedic Surgery Is Emerging from Proof of Concept Towards Clinical Studies: a Literature Review Explaining the Technology and Current State of the Art

2021 ◽  
Author(s):  
Fabio A. Casari ◽  
Nassir Navab ◽  
Laura A. Hruby ◽  
Philipp Kriechling ◽  
Ricardo Nakamura ◽  
...  
Keyword(s):  
Augmented Reality ◽  
Orthopedic Surgery ◽  
Relevant Literature ◽  
Comprehensive Overview ◽  
Basic Principles ◽  
Clinical Procedures ◽  
Current State ◽  
Tremendous Progress ◽  
Orthopedic Oncology ◽  
Technological Developments

Abstract Purpose of Review Augmented reality (AR) is becoming increasingly popular in modern-day medicine. Computer-driven tools are progressively integrated into clinical and surgical procedures. The purpose of this review was to provide a comprehensive overview of the current technology and its challenges based on recent literature mainly focusing on clinical, cadaver, and innovative sawbone studies in the field of orthopedic surgery. The most relevant literature was selected according to clinical and innovational relevance and is summarized. Recent Findings Augmented reality applications in orthopedic surgery are increasingly reported. In this review, we summarize basic principles of AR including data preparation, visualization, and registration/tracking and present recently published clinical applications in the area of spine, osteotomies, arthroplasty, trauma, and orthopedic oncology. Higher accuracy in surgical execution, reduction of radiation exposure, and decreased surgery time are major findings presented in the literature. Summary In light of the tremendous progress of technological developments in modern-day medicine and emerging numbers of research groups working on the implementation of AR in routine clinical procedures, we expect the AR technology soon to be implemented as standard devices in orthopedic surgery.

Exploring the Basic Principles and Functionalities of Spintronic Thermal Management

2021 ◽  
Vol 1 ◽  
Keyword(s):  
Thermal Management ◽  
Comprehensive Overview ◽  
Basic Principles ◽  
Heat Control ◽  
Spin Caloritronics

Scientists propose a new spin caloritronics concept called “spintronic thermal management” and provide a comprehensive overview of basic principles, physical behaviors, and heat control functionalities associated with the concept.

scholarly journals Basic Principles, Most Common Computational Tools, and Capabilities for Building Energy and Urban Microclimate Simulations

Energies ◽  
2021 ◽  
Vol 14 (20) ◽  
pp. 6707
Author(s):  
George M. Stavrakakis ◽  
Dimitris Al. Katsaprakakis ◽  
Markos Damasiotis
Keyword(s):  
Simulation Models ◽  
Building Energy ◽  
Urban Microclimate ◽  
Comprehensive Overview ◽  
Basic Principles ◽  
Computational Tools ◽  
Simulation Tools ◽  
Urban Heat

This paper presents basic principles of built-environment physics’ modelling, and it reviews common computational tools and capabilities in a scope of practical design approaches for retrofitting purposes. Well-established simulation models and methods, with applications found mainly in the international scientific literature, are described by means of strengths and weaknesses as regards related tools’ availability, easiness to use, and reliability towards the determination of the optimal blends of retrofit measures for building energy upgrading and Urban Heat Island (UHI) mitigation. The various characteristics of computational approaches are listed and collated by means of comparison among the principal modelling methods as well as among the respective computational tools that may be used for simulation and decision-making purposes. Insights of coupling between building energy and urban microclimate models are also presented. The main goal was to provide a comprehensive overview of available simulation methods that can be used at the early design stages for planning retrofitting strategies and guiding engineers and technical professionals through the simulation tools’ options oriented to the considered case study.

scholarly journals Leading dental journals availability through academic network of Serbia

2010 ◽  
Vol 57 (3) ◽  
pp. 154-162
Author(s):  
Jelena Jacimovic ◽  
Slavoljub Zivkovic
Keyword(s):  
Information Needs ◽  
Information Technologies ◽  
Oral Surgery ◽  
Technological Development ◽  
Scientific Information ◽  
Academic Community ◽  
Communication Process ◽  
Comprehensive Overview ◽  
Research Libraries ◽  
Number Of Publications

In the last century a great progress was noted in all scientific disciplines. With the increasing number of scientific research, researchers and investment, the number of publications has grown exponentially. Besides, the development of information technologies and the emergence of the Internet, communication between scientists as well as the traditional roles assigned to the institutions responsible for information processing and provision has been changed. Due to the rapidly increasing subscription rates, libraries, although the primary participants in the scholarly communication process, lose their ability to meet user information needs. In order to overcome commercialization of scholarly publishing, libraries intensify use of different electronic resources, coordinate acquisition policy and form consortia. In November 2001, leading research libraries in Serbia launched an initiative to form the Consortium for Coordinated Acquisition of Serbian Libraries (KoBSON). Subscribed services, funded by the Ministry of Science and Technological Development of Serbia, currently include over 35,000 scientific journals, about 40,000 books and several citation databases. In the field of Dentistry, Oral Surgery and Medicine, 73.4% of total number of the most relevant dental journals is available in electronic form to Serbian academic community. This article presents a comprehensive overview of basic information about available journals: impact factor, productivity, publication continuity and frequency, language, services that they are available through, size of archives and existing formats. At present Serbian academic institutions have access to more than two thirds of the world?s most relevant dental journals, which justifies the Consortium founders? initial idea of wide accessibility of scientific information and requires greater involvement of librarians in introducing available services to researchers in order to ensure their full utilization.

scholarly journals Personal factors influencing the information behavior of scientists and specialists

Bibliosphere ◽  
2018 ◽  
pp. 42-50 ◽  
Author(s):  
O. L. Lavrik ◽  
M. A. Pleshakova ◽  
T. A. Kalyuzhnaya ◽  
O. A. Fedotova
Keyword(s):  
Scientific Information ◽  
Academic Library ◽  
Information Behavior ◽  
Geographical Location ◽  
Element Model ◽  
Information Support ◽  
Personal Factors ◽  
Basic Principles ◽  
Heterogeneous Information ◽  
Academy Of Sciences

The article reviews results of the surveying scientists employees of scientific centers of the Siberian Branch of the Russian Academy of Sciences - to study their information behavior. It reveals researchers’ preferences, peculiarities of their work with heterogeneous information and ways of its obtaining depending on a certain factor (status, age, area of knowledge, nature of activity, geographical location). The authors conclude on the need to renovate the information support system for research and development, and outline the strategy basic principles of developing the academic libraries scientific-information activities. The paper presents three-element model of information support for scientific research by the academic library.

scholarly journals THE STATE AND PROBLEMS OF ACADEMIC INTEGRITY AND THE REASONS OF ITS BREACH

2021 ◽  
Vol 1 (194) ◽  
pp. 204-208
Author(s):  
Anastasia Dorozhko ◽  
Keyword(s):  
Academic Dishonesty ◽  
Academic Integrity ◽  
Scientific Information ◽  
Scientific Activity ◽  
Academic Community ◽  
Basic Principles ◽  
Online Programs ◽  
Current State ◽  
Scientific Environment ◽  
Scientific Ideas

The article clarifies the current state of academic integrity, gives a list of its basic principles, the reasons of their breach, suggests the ways to overcome breaches, and also it notes the plagiarism essence, and defines the categories of scientific plagiarism. The paper considers academic integrity as the commitment of an academic community to six fundamental values such as honesty, trust, fairness, justice, respect, responsibility, courage. The reasons why the basic principles of academic integrity are violated are considered. The violations include copying, forgery, involvement in the commission of academic dishonesty, plagiarism, deception. In the paper the term «plagiarism» means the theft of scientific ideas, misappropriation of another author's research results or text usage without correctly indicating sources of borrowings. It is noted that plagiarism is illegal behaviour in the scientific environment. The forms of illegal behaviour include scientific plagiarism, scientific information falsification, and production of pseudo-scientific products. The category of scientific plagiarism is analyzed in the category of obvious and non-obvious scientific plagiarism, when an expert’s participation for the problem consideration is necessary. One of the simplest and most effective mechanisms is offered, it is teaching students online self-checking of manuscript texts for originality. The article provides the examples of effective services for online self-checking of manuscript texts for originality. The most common online programs for self-checking of manuscript texts are presented. The paper emphasizes that academic integrity development for students should begin as early as possible. The promising ways of academic integrity development have been identified. It is argued that the systematic, explanatory, preventive work throughout the period of students’ scientific activity in university should be carried out. In conclusion it is proved that academic integrity development is necessary for all students

scholarly journals Modelling of Environmental Ageing of Polymers and Polymer Composites—Modular and Multiscale Methods

Polymers ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 216 ◽  
Author(s):  
Andrey E. Krauklis ◽  
Christian W. Karl ◽  
Iuri B. C. M. Rocha ◽  
Juris Burlakovs ◽  
Ruta Ozola-Davidane ◽  
...  
Keyword(s):  
Polymer Composites ◽  
State Of The Art ◽  
Polymeric Materials ◽  
Multiscale Methods ◽  
Reinforced Composites ◽  
Comprehensive Overview ◽  
Environmental Durability ◽  
Physical And Chemical ◽  
Modelling Methods ◽  
Fibre Reinforced Composites

Service lifetimes of polymers and polymer composites are impacted by environmental ageing. The validation of new composites and their environmental durability involves costly testing programs, thus calling for more affordable and safe alternatives, and modelling is seen as such an alternative. The state-of-the-art models are systematized in this work. The review offers a comprehensive overview of the modular and multiscale modelling approaches. These approaches provide means to predict the environmental ageing and degradation of polymers and polymer composites. Furthermore, the systematization of methods and models presented herein leads to a deeper and reliable understanding of the physical and chemical principles of environmental ageing. As a result, it provides better confidence in the modelling methods for predicting the environmental durability of polymeric materials and fibre-reinforced composites.

Corneal Collagen Cross-linking in Keratectasia

2009 ◽  
Vol 03 (01) ◽  
pp. 57
Author(s):  
Farhad Hafezi ◽  
Keyword(s):  
Biomechanical Properties ◽  
Cross Linking ◽  
Ultraviolet A ◽  
Comprehensive Overview ◽  
Basic Principles ◽  
Safety Issues ◽  
Current State ◽  
Biochemical Resistance ◽  
Collagen Cross Linking ◽  
Corneal Collagen

In recent years, increased attention has been paid to the biomechanical properties of the cornea. Corneal biomechanics are altered not only in inherited and acquired corneal conditions, such as ectatic disorders or melting processes, but also by refractive surgical procedures. Therefore, a therapeutic approach to increase the biomechanical and biochemical resistance of the cornea would address important issues in a variety of corneal disorders. Corneal collagen cross-linking (CXL) with riboflavin and ultraviolet A (UVA) is an innovative clinical technique that fulfils these criteria. To assist researchers and clinicians interested in the field, this article provides a comprehensive overview of the current state of CXL, its basic principles, the technique and clinical indications, but also safety issues and potential complications.

Electron-deficient boron-based catalysts for C–H bond functionalisation

2021 ◽  
Author(s):  
Yuanhong Ma ◽  
Shao-Jie Lou ◽  
Zhaomin Hou
Keyword(s):  
Review Article ◽  
Current Status ◽  
Comprehensive Overview

This review article provides a comprehensive overview to recognise the current status of electron-deficient boron-based catalysis in C–H functionalisations.

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