scholarly journals A Conceptual Project of a Device for Human Wrist Functional Rehabilitation

2016 ◽  
Vol 21 (4) ◽  
pp. 923-932 ◽  
Author(s):  
B. Lewandowski ◽  
M. Olinski ◽  
S. Wudarczyk ◽  
A. Gronowicz
Keyword(s):  
Control System ◽  
Literature Review ◽  
3D Model ◽  
Functional Rehabilitation ◽  
Advantages And Disadvantages ◽  
Supporting Functional

Abstract In the paper, the problems of devices supporting functional rehabilitation of a human wrist were addressed. A literature review and a description of selected devices together with an indication of their advantages and disadvantages were conducted. The biomechanical structure of a human wrist was analyzed. On this basis and after taking into consideration ranges of motion of the selected joints the concept of a new mechanism was developed. A 3D model of the device was built in the Autodesk Inventor system. For the purpose of simulations another model was developed in the MSC Adams system. Issues of drives and sensors selection, as well as requirements for the control system, were examined.

ON COMPARATIVE ANALYSIS OF PERFORMANCE OPTIMIZATION METHODS OF MULTI-PUMP UNITS

2020 ◽  
pp. 23-28
Author(s):  
A.I. Glushchenko ◽  
M.Yu. Serov
Keyword(s):  
Energy Efficiency ◽  
Control System ◽  
Comparative Analysis ◽  
Performance Optimization ◽  
Optimization Methods ◽  
Online Optimization ◽  
New Approach ◽  
Advantages And Disadvantages ◽  
Analysis Of Performance

В статье рассматривается вопрос совершенствования системы управления параллельно-работающими насосными агрегатами с целью повышения энергоэффективности их работы. Проведено сравнение и выявление недостатков существующих методов решения рассматриваемой проблемы. Предложена идея нового подхода на базе онлайн оптимизации. The problem under consideration is improvement of the energy efficiency of a control system of parallel-running pump units. Known methods used to solve this problem are considered. Their advantages and disadvantages are shown. Finally, the idea of a new approach, which is based on online optimization, is proposed.

scholarly journals Swarm Robotic Interactions in an Open and Cluttered Environment: A Survey

Designs ◽  
2021 ◽  
Vol 5 (2) ◽  
pp. 37
Author(s):  
Maxime Vaidis ◽  
Martin J.-D. Otis
Keyword(s):  
Literature Review ◽  
Research Trends ◽  
Cluttered Environment ◽  
Advantages And Disadvantages ◽  
Population Migrations ◽  
New Research ◽  
Interaction Strategy ◽  
Crowded Environment

Recent population migrations have led to numerous accidents and deaths. Little research has been done to help migrants in their journey. For this reason, a literature review of the latest research conducted in previous years is required to identify new research trends in human-swarm interaction. This article presents a review of techniques that can be used in a robots swarm to find, locate, protect and help migrants in hazardous environment such as militarized zone. The paper presents a swarm interaction taxonomy including a detailed study on the control of swarm with and without interaction. As the interaction mainly occurs in cluttered or crowded environment (with obstacles) the paper discussed the algorithms related to navigation that can be included with an interaction strategy. It focused on comparing algorithms and their advantages and disadvantages.

scholarly journals A Systematic Literature Review of Multi-Criteria Decision-Making Methods for Sustainable Selection of Insulation Materials in Buildings

2021 ◽  
Vol 13 (2) ◽  
pp. 737
Author(s):  
Indre Siksnelyte-Butkiene ◽  
Dalia Streimikiene ◽  
Tomas Balezentis ◽  
Virgilijus Skulskis
Keyword(s):  
Decision Making ◽  
Literature Review ◽  
Systematic Literature Review ◽  
Energy Demand ◽  
Energy Performance ◽  
Future Research ◽  
Multi Criteria Decision Making ◽  
Insulation Materials ◽  
Advantages And Disadvantages ◽  
Selection Of

The European Commission has recently adopted the Renovation Wave Strategy, aiming at the improvement of the energy performance of buildings. The strategy aims to at least double renovation rates in the next ten years and make sure that renovations lead to higher energy and resource efficiency. The choice of appropriate thermal insulation materials is one of the simplest and, at the same time, the most popular strategies that effectively reduce the energy demand of buildings. Today, the spectrum of insulation materials is quite wide, and each material has its own specific characteristics. It is recognized that the selection of materials is one of the most challenging and difficult steps of a building project. This paper aims to give an in-depth view of existing multi-criteria decision-making (MCDM) applications for the selection of insulation materials and to provide major insights in order to simplify the process of methods and criteria selection for future research. A systematic literature review is performed based on the Search, Appraisal, Synthesis and Analysis (SALSA) framework and the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. In order to determine which MCDM method is the most appropriate for different questions, the main advantages and disadvantages of different methods are provided.

scholarly journals Intelligent Control Wheelchair Using a New Visual Joystick

2018 ◽  
Vol 2018 ◽  
pp. 1-20 ◽  
Author(s):  
Yassine Rabhi ◽  
Makrem Mrabet ◽  
Farhat Fnaiech
Keyword(s):  
Control System ◽  
Intelligent Control ◽  
Visual Recognition ◽  
Low Cost ◽  
Control Device ◽  
Control Technique ◽  
Hand Gesture ◽  
Functional Rehabilitation ◽  
Number Of Patients ◽  
Real Patients

A new control system of a hand gesture-controlled wheelchair (EWC) is proposed. This smart control device is suitable for a large number of patients who cannot manipulate a standard joystick wheelchair. The movement control system uses a camera fixed on the wheelchair. The patient’s hand movements are recognized using a visual recognition algorithm and artificial intelligence software; the derived corresponding signals are thus used to control the EWC in real time. One of the main features of this control technique is that it allows the patient to drive the wheelchair with a variable speed similar to that of a standard joystick. The designed device “hand gesture-controlled wheelchair” is performed at low cost and has been tested on real patients and exhibits good results. Before testing the proposed control device, we have created a three-dimensional environment simulator to test its performances with extreme security. These tests were performed on real patients with diverse hand pathologies in Mohamed Kassab National Institute of Orthopedics, Physical and Functional Rehabilitation Hospital of Tunis, and the validity of this intelligent control system had been proved.

Second Paper: Failure-Survival Automatic Flight Control Systems for Aircraft with Particular Reference to a High Reliability Electrohydraulic Actuator

1965 ◽  
Vol 180 (1) ◽  
pp. 246-259
Author(s):  
R. Ruggles
Keyword(s):  
Control System ◽  
Control Systems ◽  
Flight Control ◽  
High Reliability ◽  
Supply System ◽  
Design Criteria ◽  
Flight Control System ◽  
Advantages And Disadvantages ◽  
System Configurations ◽  
Very High

The author discusses some of the problems of failure-survival automatic flight control systems and suggests some basic ground rules as design criteria. The advantages and disadvantages of some of the main types of system are discussed: duplex, triplex, triple component, duplicate-monitored and quadruplex systems being covered. In particular, a quadruplex actuator is described which has been designed and developed mainly for automatic flight control system applications where a very high degrees of failure-survival capability is required. A detailed failure analysis of the various systems is carried out and the importance of the electrical and hydraulic supply system configurations and failure rates is brought out.

Current CITE-ings from the popular and trade computing press: telework and telecommuting

2016 ◽  
Vol 33 (1) ◽  
pp. 21-22 ◽  
Author(s):  
Martin Kesselman
Keyword(s):  
Literature Review ◽  
Design Methodology ◽  
Virtual Reference ◽  
Content Type ◽  
Advantages And Disadvantages ◽  
Better Than

Purpose – This article examines Current CITE-ings from the Popular and Trade Computing Press, Telework and Telecommuting Design/methodology/approach – The methodology adopted is a literature review. Findings – Readily available technologies now allow librarians to perform most of their work-offsite. Some traditional building-based services such as reference, have been taken over by virtual reference and now even instruction offers options on par with or even better than classroombased questions such as a webinar that can be viewed and reviewed at any time or by having librarians embedded into various courseware packages. Researchlimitations/implications – Librarians no longer need be limited to a single library; groups of subject librarians can work together in the cloud to provide services to multiple universities. Originality/value – This article collates some articles from the non-library literature that mayprovide some ideas and review advantages and disadvantages for both the library and employee

FUNCTIONAL METHODS OF EARLY DIAGNOSTICS OF AGE MACULAR DEGENERATION.(LITERATURE REVIEW)

2021 ◽  
Vol Special issue (2) ◽  
pp. 61-67
Author(s):  
Azamat Yusupov ◽  
◽  
Mukhiddin Ziyoviddinov ◽  
Shavkat Mukhanov ◽  
O.O. Sobirov
Keyword(s):  
Literature Review ◽  
Macular Degeneration ◽  
Contrast Sensitivity ◽  
Morphological Changes ◽  
Pigment Epithelium ◽  
Sensitivity Study ◽  
Age Related Macular Degeneration ◽  
Functional Diagnostics ◽  
Advantages And Disadvantages ◽  
Age Related

This article provides an unsystematic literature review devoted to analyzing the currently existing methods of functional diagnostics for age-related macular degeneration.The essence, advantages and disadvantages, and literature data on the use of such methods asphotostresstest, electrooculography, dark adaptation study, contrast sensitivity function assessment, light and color sensitivity study,electroretinographyand critical flicker fusion frequencyare described.Based on the analysis of literature data, itis shownthat currently, there is a need to searchfor informative and accessible methods of functional diagnostics in age-related macular degeneration, especially for its early diagnosis. The analysis has shown that the existing methods are mainly aimed either at fixing secondary morphological changes in the layer of pigment epithelial cells, at identifying the pathology of the pigment epithelium in conjunction with determining the function of photoreceptor elements, or at a comprehensive assessment of the structures of several layers of the retina. Keywords:age-related macular degeneration; methods of functional diagnostics; photostress test; electrooculography; contrast sensitivity

scholarly journals MÉTODOS DE NORMALIZAÇÃO, PONDERAÇÃO E AGREGAÇÃO NA FORMAÇÃO DE (SUB)ÍNDICE DE SUSTENTABILIDADE

2021 ◽  
Vol 11 (4) ◽  
pp. 167-187
Author(s):  
Alexandre André Feil
Keyword(s):  
Literature Review ◽  
Critical Analysis ◽  
Quantitative Data ◽  
Library Search ◽  
Sustainability Index ◽  
Advantages And Disadvantages ◽  
Aggregation Techniques ◽  
Methods And Techniques ◽  
Online Library ◽  
Keywords Composite

The structuring of a sustainability index requires a transparent and reliable process, so that its results are the closest to reality and consistent. This study aimed at a critical analysis of the process of structural elaboration of the (sub) sustainability indexes, comparing its main disadvantages and advantages. The methodology used focuses on the qualitative through the technique of systematic literature review and snowballing. The keywords (composite indicators, index, sustainability, aggregation, normalization, advantages and disadvantages) have been inserted into the Google Scholar, Science Direct, Springer Link and Wiley Online Library search directories. The main results show that the techniques used in the process of standardization, weighting and aggregation of a set of data in a sustainability index present indifferent weaknesses and limitations. In addition, the multicriteria aggregation techniques cover qualitative, quantitative data and their uncertainties, but they do not eliminate the weaknesses and limitations of structuring the sustainability index. Thus, they tend to be more suitable, but do not guarantee that the index generated reflect the complexity of the reality of the system that has been reduced. The theoretical and practical contributions of this study are related to the choices of methods and techniques in structuring the (sub) sustainability index, since even with the choice of the most adequate ones in their elaboration, they do not eliminate their fragilities and limitations. The originality of the study is the combination of the main methods and techniques of elaborating a (sub) sustainability index in a single document, in the Portuguese language.  

scholarly journals Alternative Assessments in Online Learning during Covid-19 Pandemic: The Strenghths and Weaknesses

2021 ◽  
Vol 5 (2) ◽  
pp. 240
Author(s):  
Ahmad Arifuddin ◽  
Turmudi Turmudi ◽  
Ummi Nur Rokhmah
Keyword(s):  
Online Learning ◽  
Elementary Education ◽  
Literature Review ◽  
Cognitive Assessments ◽  
Self Assessment ◽  
Advantages And Disadvantages ◽  
Learning Assessments ◽  
Alternative Assessments ◽  
Teachers And Students ◽  
Research Problems

Currently, online learning becomes a new trend in the Indonesian education. But, the educators are not ready to adapt to online learning, especially in online learning assessments. This study aims to describe the alternative assessments in online learning that can be implemented at elementary education along with its advantages and disadvantages. This study employed a qualitative approach with the literature review method. Researchers collected a number of reputable national and international journal articles, textbooks, handbooks, regulations, and so on from the google scholar database, science direct, eric, and others related to research problems and objectives. The analysis of the literature review uses the critical appraisal method. The results of this study showed that online learning assessments that can be implemented in elementary education were formative and summative assessments. It included cognitive assessments, performance assessments, portfolios, writings and journals, self-assessment and peers-assessments. The use of online learning assessments has many advantages such as the availability to conduct tests on demand and at any time, provides direct feedback to users, the students’ quick access to the test results, and a more accurate measurement of student learning. However, online assessment systems also have several drawbacks, such as students who have low information technology (IT) skills might be disadvantaged. For this reason, in implementing online learning and assessment, teachers and students should master information and communication technology skills.

scholarly journals Critical analysis of methodologies for valuation of esthetic damage and the forensic application in Brazil

RSBO ◽  
2018 ◽  
Vol 1 (3) ◽  
pp. 177
Author(s):  
Flávia Vetter ◽  
Rodrigo Torres Pereira ◽  
Lilian Lígia Block ◽  
Wellington Menyrval Zaitter ◽  
Rogério Nogueira de Oliveira ◽  
...  
Keyword(s):  
Literature Review ◽  
Critical Analysis ◽  
Forensic Application ◽  
Advantages And Disadvantages ◽  
Brazilian Legislation ◽  
Damage Repair ◽  
Dynamic Expression

Introduction: The esthetic damage is any pejorative modification in static or dynamic expression, perceived by any sense, affecting the image of the person. The esthetic damage repair has legal support in Brazilian legislation. Objective: to systematize the different existing methods for valuation of esthetic damages, critically analyze their characteristics, advantages and disadvantages; and evaluate whether these methods would have been validated in any population inside or outside of Brazil. Literature review: The adoption of the use of tables, formulas and coefficients was insufficient to overcome the limitations of each method, such as those supported by the measurement of a single scar or by the teeth. Conclusion: All available subjective methods, except for AIEL method did not havescientific evidence, lacking validation in any country, and requiring proof of methodology.

Sign in / Sign up

Export Citation Format

Share Document