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Guest lecture: the role of higher education in strong democracies

05 April 2024 | Story DR NITHA RAMNATH

The Vice-Chancellor and Principal of the University of the Free State, Prof Francis Petersen, has the pleasure of inviting you to a guest lecture presented by H.E. Dr Reuben E Brigety, the United States Ambassador to South Africa.

Date: Tuesday 23 April 2024

Time: 15:00-16:00

Venue: Centenary Complex, Bloemfontein Campus

RSVP here by no later than 19 April 2024.

About the speaker

Reuben E Brigety II was confirmed as the 29th United States Ambassador to the Republic of South Africa on 21 July 2022.

Previously, he served as the 17th Vice-Chancellor of the University of the South and Mayor of Sewanee from June 2020 until December 2021, and as the Dean of the Elliott School of International Affairs of the George Washington University from 2015 to 2020. Ambassador Brigety’s most recent diplomatic assignment was serving as the US Representative to the African Union and US Permanent Representative to the UN Economic Commission for Africa from September 2013 to September 2015. Previously, Ambassador Brigety served as the Deputy Assistant Secretary of State in the Bureau of African Affairs and as Deputy Assistant Secretary of State in the Bureau of Population, Refugees, and Migration.

A native of Jacksonville, Florida, Ambassador Brigety also held appointments as Assistant Professor of Government and Politics at George Mason University and at the School of International Service at the American University between August 2003 and April 2009. In addition, Ambassador Brigety was a researcher with the Arms Division of Human Rights Watch (HRW) from August 2001 to May 2003, where he conducted research missions in Afghanistan and Iraq. Before joining HRW, Ambassador Brigety was an active-duty US naval officer and held several staff positions in the Pentagon and in fleet support units.

Ambassador Brigety is a 1995 Distinguished Midshipman Graduate of the US Naval Academy, where he earned a BSc in Political Science (with merit), served as the Brigade Commander, and received the Thomas G Pownall Scholarship. He also holds an MPhil and a PhD in International Relations from the University of Cambridge, England, as well as a Doctor of Humane Letters (honoris causa) from Old Dominion University. Ambassador Brigety is a life member of the Council on Foreign Relations, a recipient of the council’s International Affairs Fellowship, and a fellow of the American Academy of Diplomacy.He is married to Dr Leelie Selassie, and together they have two sons.

News Archive

Lithium-ion batteries research set to improve ordinary lives

2016-02-11

Description: Dr Lehlohonolo Koao Tags: Dr Lehlohonolo Koao

Dr Koao is making a much-needed contribution in improving lives of ordinary people through his research on lithium-ion batteries.

The future of relevant and top-notch scientific research at the Qwaqwa Campus is in good hands. Dr Lehlohonolo Koao is one of the five members of the Vice-Chancellor’s Prestige Scholars Programme (PSP) on the Qwaqwa Campus.

The need to improve the efficiency of heating mechanisms in his immediate community in Qwaqwa, and the support he receives from the PSP, have become catalysts for his current research project on lithium-ion batteries. According to Dr Koao, the study will focus on producing batteries that last longer, store more energy, are cheaper to manufacture, and are environmentally friendly when being disposed of. These are key factors in solar energy.

‘’The majority of households in my neighbourhood have benefited from the government’s project of providing households with solar panels to help with lighting, cooking, and heating without worrying about the ever-increasing electricity costs,’’ said Dr Koao.

‘’Since my arrival in the area, I have realized that the heat absorption rate of the batteries used by solar panels is not enough. As a result, these batteries also lack enough power to sustain the supply throughout the day, especially on a cloudy day,’’ he said.

His research project focuses on improving the efficiency of lithium-ion batteries that are now commonly used in portable electronics, such as cell phones and laptops. This kind of battery is rapidly replacing the usual lead-acid batteries. Dr Koao’s determination to contribute towards a safer and more efficient heating absorption system has made him move away completely from his PhD study on lighting material.

‘’My previous study was on reducing the power usage on domestic and industrial lights as they use more electricity. This study, on the other hand, will enhance power retention in the batteries for improved daily life since cell phones, solar panels, and laptops, to mention only a few, are now a way of life,’’ he added.

Dr Koao is a Senior Lecturer in the Department of Physics, where he specializes in solid state materials.

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