Biofuel sector as a potential business opportunity for emerging cooperatives a case study of South African cooperatives
- Authors: Thaba, S.C. , Mbohwa, Charles , Pradhan, A.
- Date: 2015
- Subjects: Cooperative enterprises , Biofuels , Challenges and Opportunities
- Language: English
- Type: Conference proceedings
- Identifier: http://hdl.handle.net/10210/86217 , uj:19450 , Citation: Thaba, S.C., Mbohwa, C. & Pradhan, A. 2015. Biofuel sector as a potential business opportunity for emerging cooperatives a case study of South African cooperatives.
- Description: Abstract: This study points to the biofuel industry as a potential business idea that can be used by a selected group that has to form and run a sustainable cooperative. Biofuel projects are considered in this study, focusing on how biofuel projects may be incorporated in the running of biofuel industry. The study investigated the opportunities of the emerging South African cooperatives in biofuels industry. We used the qualitative method to collect data. A total of 200 cooperative were studied through observations, interviews, and focused group interviews. Out of 200 small scale biodiesel plants situated in South Africa, 35 are in four provinces namely Mpumalanga, Western Cape, Kwa-Zulu Natal and Gauteng, where empirical studies were conducted in form of observations and interviews. Cooperatives are widely spread all over South Africa. The study however, focused on the cooperatives that are situated in Limpopo and Gauteng province. The researcher also attended several workshops and conferences that are related to development of South African cooperative and other social enterprises. Both the strategy of the cooperative and biofuels aimed at one most important aspect which is to merge the first and second economy. Both are in the emerging stage, and working on a common goal of educating and training those that are affected to achieve the aim.
- Full Text:
Optimal load scheduling of household appliances considering consumer preferences : an experimental analysis
- Authors: Yahia, Z. , Pradhan, A.
- Date: 2018
- Subjects: Household appliances , Residential load scheduling , Inconvenience
- Language: English
- Type: Article
- Identifier: http://hdl.handle.net/10210/278265 , uj:29857 , Citation: Z. Yahia, A. Pradhan, Optimal load scheduling of household appliances considering consumer preferences: an experimental analysis, Energy (2018), doi: 10.1016/j.energy. 2018.08.113
- Description: Abstract: This paper discusses an experimental study of the home appliances scheduling problem that incorporates realistic aspects. The residential load scheduling problem is solved while considering consumer’s preferences. The objective function minimizes the weighted sum of electricity cost by earning relevant incentives, and the scheduling inconvenience. The objective of this study is five-fold. First, it sought to develop and solve a binary integer linear programming optimization model for the problem. Second, it examined the factors that might affect the obtained schedule of residential loads. Third, it aimed to test the performance of a developed optimization model under different experimental scenarios. Fourth, it proposes a conceptual definition of a new parameter in the problem, the so-called “flexibility ratio”. Finally, it adds a data set for use in the literature on the home appliance scheduling problem, which can be used to test the performance of newly-developed approaches to the solution of this problem. This paper presents the results of experimental analysis using four factors: problem size, flexibility ratio, time slot length and the objective function weighting factor. The experimental results show the main and interaction effects, where these exist, on three performance measures: the electricity cost, inconvenience and the optimization model computation time.
- Full Text:
The impact of technology on the health care services in Gauteng Province, South Africa
- Authors: Agwa-Ejon, J. F. , Pradhan, A.
- Date: 2014
- Subjects: Health care services - South Africa - Gauteng , Medical technology - South Africa - Gauteng
- Type: Article
- Identifier: uj:5002 , http://hdl.handle.net/10210/13141
- Description: Modern technology has enabled global integration with an immense opportunity for sharing knowledge. This paper examines the impact of modern medical technology on the Gauteng medical services. Gauteng is the smallest of the nine provinces in South Africa with the highest population. It produces 33.9% of the GDP of South Africa, equivalent to 10% of that of the entire African continent. Gauteng has the fourth largest economy in Africa after Algeria. Although numerous studies have identified the impact of technology on the medical fraternity, little data and analytical attention has been given to South Africa regarding modern technology, especially its impact on medical tourism. Patients from poor countries lacking modern technology travel to South Africa to benefit from technology that has improved diagnosis and made surgery quick, safe, efficient, and reduced the post-operative recovery to a few days. A multi-case approach was used in this study to explore the benefits of modern technology on the health care services. An in-depth analysis was conducted on two public and two private hospitals, selected because of their location in Gauteng and their bed capacity. A five point Likert questionnaire was administered to the hospital managers, nurses, doctors and medical technologists. In conclusion the paper emphasises the need for improved environmental friendliness by utilising paperless medical records and prescriptions, and recommends upgrading technological acuity of policy makers and healthcare Managers about the impact of Medical Technology in Disease management.
- Full Text: