John Ogbemhe, Khumbulani Mpofu, Nkgatho Tlale,
The problem of trajectory planning is relevant for the proper use of costly robotic systems to mitigate undesirable effects such as vibration and even wear on the mechanical structure of the system. The objective of this study is to design trajectories that are devoid of collision, velocity, acceleration, jerk and snap discontinuities so that the cycle time required to complete the process can be reduced. The trajectory design was constructed for all the six joints, using a 9 th order Bezier curve ...
Tópico(s): Robot Manipulation and Learning
2019 - Institute of Electrical and Electronics Engineers | IEEE Access
John Ogbemhe, Khumbulani Mpofu, Nkgatho Tlale,
There has been a recent push in robotics globally. This work makes an attempt at exploring the role of robotics in achieving sustainability in manufacturing. Its describes the advancement made so far in applying robots to manufacturing- welding shot blasting, painting, and so forth, within the sustainability framework. Factors militating against the sustainable economic model are addressed. New methodologies are much needed to bridge the knowledge gap between research and industry, regarding the ...
Tópico(s): Mechatronics Education and Applications
2017 - Elsevier BV | Procedia Manufacturing
John C. Mubangizi, Mpho Tsepiso Tlale,
This article discusses the effect of gender-based cultural practices on women's property rights in South Africa and how this impacts on women's ability to own property – particularly land. The cultural practices discussed include those relating to customary marriages such as payment of brideprice and polygamy. They also include the practices of levirate marriages and male premogeniture. These practices are linked to the unequal position of women in society, and they do not only prohibit women's access ...
Tópico(s): International Human Rights and Reproductive Law
2023 - Elsevier BV | Women s Studies International Forum
Lebapotswe Tlale, Lesego Gabaitiri, Lorato K. Totolo, Gomolemo Smith, Orapeleng Puswane-Katse, Eunice Ramonna, Basego Mothowaeng, John Thato Tlhakanelo, Tiny Masupe, Goabaone Rankgoane-Pono, John Irige, Faith Mafa, Samuel Kolane,
The COVID-19 disease burden continues to be high worldwide and vaccines continue to be developed to help combat the pandemic. Acceptance and risk perception for COVID-19 vaccines is unknown in Botswana despite the government's decision to roll out the vaccine nationally.This study aims to assess the acceptance rate and risk perception of COVID-19 vaccines amongst the general population in Botswana.We interviewed 5300 adults in Botswana from 1-28 February 2021 using self-administered questionnaires. ...
Tópico(s): COVID-19 epidemiological studies
2022 - Public Library of Science | PLoS ONE
John Ogbemhe, Khumbulani Mpofu, Nkgatho Tlale, Boitumelo Ramatsetse,
The use of a learning factory creates a platform for putting to use research innovations, directly into industrial practice. Railcar manufacturers are migrating to fully automated and innovative solutions with industrial welding robot systems playing a pivotal role in the paradigm shift for tasks such as the production of bogie frames and their components. Furthermore, the skills required for bringing about the automation of dangerous and dirty task in the railcar industry are scarce. There is pressure ...
Tópico(s): Advanced machining processes and optimization
2019 - Elsevier BV | Procedia Manufacturing
John Ogbemhe, Khumbulani Mpofu, Nkgatho Tlale,
Sustainable manufacturing is now extensively cited in the literature; robotic technologies play a vital role in achieving it. The motivation for the use of industrial robots is mainly for their ability to execute programmed, tedious tasks, and to assist workers to perform boring and dirty jobs with the sole aim of advancing productivity and efficiency. For industrial robots to contribute optimally to sustainable manufacturing, trajectory planning plays a key role in achieving this goal. In this ...
Tópico(s): Advanced Numerical Analysis Techniques
2019 - Elsevier BV | Procedia Manufacturing