A critical review on automation of steering mechanism of load haul dump machine

2019 ◽  
Vol 234 (2) ◽  
pp. 160-182
Author(s):  
Sreeharsha Rowduru ◽  
Niranjan Kumar ◽  
Ajit Kumar
Keyword(s):  
Critical Review ◽  
Tracking Error ◽  
Steering System ◽  
Pictorial Representation ◽  
Research Gaps ◽  
Steering Mechanism ◽  
Different Types ◽  
Automatic Steering ◽  
Complete Automation ◽  
Future Work

This article presents a brief note on the evolution of steering mechanisms and more emphasized on articulated steering system of the load haul dump machine. In this respect, pictorial representation of the evolution of steering mechanisms for on-road and articulated steering mechanisms of the load haul dump machine is made from the available literature. Critical review on basic elements required for the complete automation of the load haul dump vehicle steering system is presented. Different types of controllers for path tracking error minimization of the scale-modeled or simulated model of the load haul dump steering system are tabulated. Few case studies stimulating the complete automation of the load haul dump steering system employed on the field are also discussed. Challenges and some research gaps in making fully automated steering system of the load haul dump machine are identified in this review article. At the end, based on the critical review, some novel methods for making the fully automated steering system of the load haul dump machine is provided, which is the potential future work for the design and development of feasible automatic steering system.

PROJECT ON ELECTRONIC STEERING SYSYTEM

2018 ◽  
Vol 4 (5) ◽  
pp. 7
Author(s):  
Shivam Dwivedi ◽  
Prof. Vikas Gupta
Keyword(s):  
Steering System ◽  
Essential Elements ◽  
Variable Pressure ◽  
Passenger Cars ◽  
Control Techniques ◽  
Steering Mechanism ◽  
Dynamics And Control ◽  
Active Research ◽  
Electronic Steering ◽  
And Control

As the four-wheel steering (4WS) system has great potentials, many researchers' attention was attracted to this technique and active research was made. As a result, passenger cars equipped with 4WS systems were put on the market a few years ago. This report tries to identify the essential elements of the 4WS technology in terms of vehicle dynamics and control techniques. Based on the findings of this investigation, the report gives a mechanism of electronically controlling the steering system depending on the variable pressure applied on it. This enhances the controlling and smoothens the operation of steering mechanism.

A novel path tracking approach considering safety of the intended functionality for autonomous vehicles

2021 ◽  
pp. 095440702110205
Author(s):  
Huiran Wang ◽  
Qidong Wang ◽  
Wuwei Chen ◽  
Linfeng Zhao ◽  
Dongkui Tan
Keyword(s):  
Autonomous Vehicles ◽  
Autonomous Vehicle ◽  
Coordinated Control ◽  
Steering System ◽  
Front Wheel ◽  
Path Tracking ◽  
Hierarchical Architecture ◽  
Automatic Steering ◽  
The Stability ◽  
Control Layer

To reduce the adverse effect of the functional insufficiency of the steering system on the accuracy of path tracking, a path tracking approach considering safety of the intended functionality is proposed by coordinating automatic steering and differential braking in this paper. The proposed method adopts a hierarchical architecture consisting of a coordinated control layer and an execution control layer. In coordinated control layer, an extension controller considering functional insufficiency of the steering system, tire force characteristics and vehicle driving stability is proposed to determine the weight coefficients of automatic steering and the differential braking, and a model predictive controller is designed to calculate the desired front wheel angle and additional yaw moment. In execution control layer, a H∞ steering angle controller considering external disturbances and parameter uncertainty is designed to track desired front wheel angle, and a braking force distribution module is used to determine the wheel cylinder pressure of the controlled wheels. Both simulation and experiment results show that the proposed method can overcome the functional insufficiency of the steering system and improve the accuracy of path tracking while maintaining the stability of the autonomous vehicle.

scholarly journals Mobile Applications for the Promotion and Support of Healthy Nutrition and Physical Activity Habits: A Systematic Review, Extraction of Features and Taxonomy Proposal

2019 ◽  
Vol 12 (1) ◽  
pp. 50-71
Author(s):  
María Vanessa Villasana ◽  
Ivan Miguel Pires ◽  
Juliana Sá ◽  
Nuno M. Garcia ◽  
Eftim Zdravevski ◽  
...  
Keyword(s):  
Physical Activity ◽  
Mobile Applications ◽  
Calorie Intake ◽  
Anthropometric Parameters ◽  
Healthy Nutrition ◽  
Different Types ◽  
Diet Diary ◽  
Definition Of ◽  
Future Work ◽  
Google Play

Background: Mobile applications can be used for the monitoring of lifestyles and physical activity. It can be installed in commodity mobile devices, which are currently used by different types of people in their daily activities worlwide . Objective: This paper reviews and categorizes the mobile applications related to diet, nutrition, health, physical activity and education, showing the analysis of 73 mobile applications available on Google Play Store with the extraction of the different features. Methods: The mobile applications were analyzed in relation to each proposed category and their features, starting with the definition of the search keywords used in the Google Play Store. Each mobile application was installed on a smartphone, and validated whether it was researched in scientific studies. Finally, all mobile applications and features were categorized. Results: These mobile applications were clustered into four groups, including diet and nutrition, health, physical activity and education. The features of mobile applications were also categorized into six groups, including diet, anthropometric parameters, social, physical activity, medical parameters and vital parameters. The most available features of the mobile applications are weight, height, age, gender, goals, calories needed calculation, diet diary, food database with calories, calories burned and calorie intake. Conclusion: With this review, it was concluded that most mobile applications available in the market are related to diet, and they are important for different types of people. A promising idea for future work is to evaluate the acceptance by young people of such mobile applications.

scholarly journals Mobile Applications for the Promotion and Support of Healthy Nutrition and Physical Activity Habits: A Systematic Review, Extraction of Features and Taxonomy Proposal

2019 ◽  
Vol 13 (1) ◽  
pp. 50-71 ◽  
Author(s):  
María Vanessa Villasana ◽  
Ivan Miguel Pires ◽  
Juliana Sá ◽  
Nuno M. Garcia ◽  
Eftim Zdravevski ◽  
...  
Keyword(s):  
Physical Activity ◽  
Mobile Applications ◽  
Calorie Intake ◽  
Anthropometric Parameters ◽  
Healthy Nutrition ◽  
Different Types ◽  
Diet Diary ◽  
Definition Of ◽  
Future Work ◽  
Google Play

Background: Mobile applications can be used for the monitoring of lifestyles and physical activity. It can be installed in commodity mobile devices, which are currently used by different types of people in their daily activities worlwide . Objective: This paper reviews and categorizes the mobile applications related to diet, nutrition, health, physical activity and education, showing the analysis of 73 mobile applications available on Google Play Store with the extraction of the different features. Methods: The mobile applications were analyzed in relation to each proposed category and their features, starting with the definition of the search keywords used in the Google Play Store. Each mobile application was installed on a smartphone, and validated whether it was researched in scientific studies. Finally, all mobile applications and features were categorized. Results: These mobile applications were clustered into four groups, including diet and nutrition, health, physical activity and education. The features of mobile applications were also categorized into six groups, including diet, anthropometric parameters, social, physical activity, medical parameters and vital parameters. The most available features of the mobile applications are weight, height, age, gender, goals, calories needed calculation, diet diary, food database with calories, calories burned and calorie intake. Conclusion: With this review, it was concluded that most mobile applications available in the market are related to diet, and they are important for different types of people. A promising idea for future work is to evaluate the acceptance by young people of such mobile applications.

scholarly journals What Is Going on with Visual Attention in Reading and Dyslexia? A Critical Review of Recent Studies

2022 ◽  
Vol 12 (1) ◽  
pp. 87
Author(s):  
Conrad Perry ◽  
Heidi Long
Keyword(s):  
Visual Attention ◽  
Critical Review ◽  
Reading Ability ◽  
Reading Performance ◽  
Span Task ◽  
Causal Effects ◽  
Future Research ◽  
Different Types ◽  
Visual Tasks

This critical review examined current issues to do with the role of visual attention in reading. To do this, we searched for and reviewed 18 recent articles, including all that were found after 2019 and used a Latin alphabet. Inspection of these articles showed that the Visual Attention Span task was run a number of times in well-controlled studies and was typically a small but significant predictor of reading ability, even after potential covariation with phonological effects were accounted for. A number of other types of tasks were used to examine different aspects of visual attention, with differences between dyslexic readers and controls typically found. However, most of these studies did not adequately control for phonological effects, and of those that did, only very weak and non-significant results were found. Furthermore, in the smaller studies, separate within-group correlations between the tasks and reading performance were generally not provided, making causal effects of the manipulations difficult to ascertain. Overall, it seems reasonable to suggest that understanding how and why different types of visual tasks affect particular aspects of reading performance is an important area for future research.

scholarly journals Distance learning: integration of media education into teaching of social-pedagogical disciplines

2020 ◽  
Vol 210 ◽  
pp. 18102
Author(s):  
Elena Muryukina ◽  
Marina Pevneva ◽  
Tatiana Poliakova
Keyword(s):  
Distance Learning ◽  
University Students ◽  
Educational Technologies ◽  
Educational Institutions ◽  
Practical Training ◽  
Different Types ◽  
Knowledge Competencies ◽  
Social Pedagogues ◽  
Future Work ◽  
Oriented Approach

New time challenges cause new contradictions that are peculiar for educational environment in Russia and they require instant solutions. We have identified the contradictions which defined our target to determine the techniques and methods of distance education for students of pedagogical specializations based on practice-oriented approach, implementation of media educational technologies into the preparation of university students aimed at the development of knowledge, competencies and skills in distance learning in different types of educational institutions. Media educational technologies are conditioned by general pedagogical and didactic principles and the choice of pedagogical methods directly depends on the content of educational discipline, conditions of its implementation and other factors. Media educational technologies used for the completion of social-pedagogical disciplines for university students consist of creative and game tasks. Using them it is essential to consider special features of various media and the target of the lesson. Practice is another relevant purpose in the process of distance learning. We believe that this problem will be dominating in the nearest future as practice in distance learning is focused on by higher education institutions. In this article some techniques and types of this practical training are presented being shaped by the format of distance learning. During various practices the students of pedagogical specializations will be able not only to prepare for their future work but also to assist subject teachers, social pedagogues in schools and to make considerable contributions in this work.

scholarly journals Building SMARTER Communities of Resistance and Solidarity

2018 ◽  
Vol 10 (2) ◽  
pp. 99-118
Author(s):  
Andre Oboler ◽  
Karen Connelly
Keyword(s):  
Online Communities ◽  
Community Resilience ◽  
New Work ◽  
New Approach ◽  
Different Types ◽  
Future Work

The Cyber-Racism and Community Resilience (CRaCR) project included an examination into features of online communities of resistance and solidarity. This work formed a key part of the project’s focus on resilience and produced a deeper understanding of a range of types of actors working in this space and how they might individually contribute effectively to creating resilience. The need for new synergies between different types of stakeholders and approaches was highlighted as an area of future work. This paper explores a design for that future work that builds and supports online communities of resistance and solidarity by drawing on the lessons from the earlier research and extending them. This new work both presents a model for cooperation and explains how different stakeholders can positively engage under the model in a smarter way. That is, through a system which facilitates Solidarity in Moving Against Racism Together while Enabling Resilience. This new approach draws on the strengths of individuals actors, but also seeks to turn points of weakness for one actor into opportunities for cooperation that strengthen the system as a whole.

Vulnerabilities of Virtual and Networked Organizations

2012 ◽  
Vol 4 (3) ◽  
pp. 20-34
Author(s):  
Zora Arsovski ◽  
Slavko Arsovski ◽  
Aleksandar Aleksic ◽  
Miladin Stefanovic ◽  
Danijela Tadic
Keyword(s):  
Economic Crisis ◽  
Scientific Research ◽  
Virtual Organizations ◽  
One Dimension ◽  
Organizational Resilience ◽  
The World ◽  
Different Types ◽  
New Business ◽  
Future Work ◽  
Networked Organizations

Virtual organizations (VO) represent a future paradigm of business. Having in mind different types of perturbations in business today, from the economic crisis to the earthquakes in Japan and terrorists’ actions, new business solutions have emerged in order to sustain development all over the world. As a new field in scientific research, organizational resilience needs to be investigated in the context of VO’s. This paper has the intention to suggest a qualitative way to assess one dimension of organizational resilience in VO’s related to keystone vulnerabilities and to establish directions for future work, emphasizing the importance of quantifying overall organizational resilience.

Marketing's Role in the Implementation of Business Strategies: A Critical Review and Conceptual Framework

1987 ◽  
Vol 51 (3) ◽  
pp. 15-33 ◽  
Author(s):  
Orville C. Walker ◽  
Robert W. Ruekert
Keyword(s):  
Critical Review ◽  
Organizational Structures ◽  
Business Strategies ◽  
Theoretical Perspectives ◽  
Different Types ◽  
Marketing Activities ◽  
Overall Performance ◽  
Research Propositions ◽  
Relationship Of ◽  
The Relationship

The authors review and integrate various theoretical perspectives, normative statements, and pieces of empirical evidence about the organizational structures and processes best suited for implementing different types of business strategies. Particular emphasis is given to the relationship of different types of structure, processes, and policies involved in the performance of marketing activities to the overall performance of different business strategies. Several specific research propositions are developed.

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