scholarly journals Locomotive engines and the future of railway automotive power in Africa: A review

2021 ◽  
Vol 40 (4) ◽  
pp. 660-673
Author(s):  
I.I. Ozigis ◽  
J.I.O. Oche ◽  
N.M. Lawal
Keyword(s):  
South Africa ◽  
Cast Iron ◽  
Additive Manufacturing ◽  
Diesel Engine ◽  
Aluminum Alloys ◽  
3D Printing ◽  
Spare Parts ◽  
Ductile Cast Iron ◽  
Track Length ◽  
The Future

This work presents the review of locomotives and the future of railway automotive power in Africa. Locomotives down time on account of inadequate spare parts still remains a challenge in African. It is thus, imperative to review the locomotives in African, to establish the current capabilities as well as provide recommendations to bridge the gaps and its extrapolated trends in future. Firstly, the comparison factors were track length, electrified rails, number of locomotives and yearly passengers on each of Egypt, Ghana, Kenya, Nigeria, South Africa and Zambia rails. Secondly, the focus was on engine parameters from literatures and maintenance logbooks of locomotives. From available data, it was found that South Africa and Egypt have more advanced rail system than the rest four selected countries. It was also found that additive manufacturing, 3D printing, ductile cast iron and die-forging can be used to produce the engine body for diesel engine using steel and aluminum alloys while aluminum silicon and tin doped with copper are good for reciprocation mechanisms. And finally, increased reliability of locomotives can be guided by an engine selection matrix, while use of renewable and energy hybridization are needed to meet the expansion of railroads in Africa.

3D printing a jet engine: An undergraduate project to exploit additive manufacturing now and in the future

2018 ◽  
Vol 16 ◽  
pp. 22-25 ◽  
Author(s):  
C.J. Smith ◽  
S. Tammas-Williams ◽  
P.S. Mahoney ◽  
I. Todd
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Jet Engine ◽  
The Future

The changing face of additive manufacturing

2017 ◽  
Vol 28 (1) ◽  
pp. 10-17 ◽  
Author(s):  
Ian Gibson
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Design Methodology ◽  
State Of The Art ◽  
Personal Perspective ◽  
Numerous Application ◽  
Content Type ◽  
The Past ◽  
Current State ◽  
The Future

Purpose The purpose of this paper is to discuss the current state-of-the-art in additive manufacturing, more commonly known as 3D printing, from the business perspectives. The primary drivers behind the development of the associated technologies are considered along with features that limit growth. Design/methodology/approach The approach is a personal perspective, based on approximately 25-years study of the development of the associated technologies and applications. Findings The discussion has found that the technology is still growing healthily, but with an understanding that there are numerous application areas that should be considered separately. Some areas are significantly more mature than others and success in some areas does not guarantee success in others. Originality/value This viewpoint has been prepared for the current state-of-the-art and can be compared with earlier viewpoints to see how things may have changed in the past. This should be of value to those interested to explore how the technology has developed in recent times and how it may move into the future.

scholarly journals Parameters Evaluation in 3D Spare Parts Printing

Electronics ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 365
Author(s):  
Igor Vujović ◽  
Joško Šoda ◽  
Ivica Kuzmanić ◽  
Miro Petković
Keyword(s):  
3D Printing ◽  
Spare Part ◽  
Spare Parts ◽  
Future Trends ◽  
Maritime Industry ◽  
Additive Technology ◽  
Spare Parts Management ◽  
The Future ◽  
Future Work

Future trends in maritime technology include the application of additive technology in spare parts management. Nowadays, 3D printing has become an integral technology in many fields. Maritime industry is one of the fields where 3D printing has become a focus of research. To prepare Electro-technical Officers (ETOs) for the future, it is necessary to investigate parameters which help with deciding whether to use additive technology or to order a spare part. This paper aims to research parameters influencing spare parts printing as a job carried out by ETOs aboard ships. Conclusions about the filament density and quality of the printed parts are derived and presented. Suggestions for future work and possible applications are given.

scholarly journals Ready for Anything?

2021 ◽  
Vol 143 (3) ◽  
pp. 30-35
Author(s):  
Carlos M. Gonzalez
Keyword(s):  
Supply Chain ◽  
Additive Manufacturing ◽  
3D Printing ◽  
Flexible Production ◽  
The Future

Abstract Stories of using 3D printing to respond to the pandemic throw a spotlight on additive manufacturing and its potential for fast, flexible production of critically needed parts. Whether it was face shields, nasopharyngeal swabs, or respiratory masks, additive manufacturing rose to the challenge to fill in the gap caused by a disrupted supply chain. Now, some industry observers are starting to ask whether 3D printing could be the future of manufacturing.

scholarly journals 3D PRINTING AND NEW SECURITY THREATS

2020 ◽  
Vol 3 (7) ◽  
pp. 197-210
Author(s):  
Franklin Epiphanio Gomes de Almeida
Keyword(s):  
Additive Manufacturing ◽  
3D Printing ◽  
Disruptive Technology ◽  
Security Threats ◽  
Enabling Technology ◽  
Security Risks ◽  
Horizon Scanning ◽  
The Future ◽  
Potential Impact ◽  
Early Indicators

The present study is a horizon scanning report based on the British model Sigma Scan. It explores possible future issues and trends in 3D printing and its potential impact on society, particularly with regard to new security threats that its spread is expected to cause. This exercise allows for an examination based on the best predictions of how the future of this disruptive and, at the same time, enabling technology is likely to be, in order to better understand the uncertainties that its development will bring. This report addresses the potential implications of the development of 3D printing, in particular for crimes, the likely early indicators of the development of this technology, the simultaneous developments that can serve as inhibitors and drivers, the potential crime preventers and promoters, and the evidence that indicates the possibility of the predicted events. Keywords: 3D printing, additive manufacturing, disruptive technology, enabling technology, security risks.

Transmedia Storytelling Initiatives in Brazilian Media

MedienJournal ◽  
2017 ◽  
Vol 36 (4) ◽  
pp. 51
Author(s):  
Renira Rampazzo Gambarato ◽  
Geane Carvalho Alzamora
Keyword(s):  
South Africa ◽  
Media Development ◽  
Future Scenario ◽  
Transmedia Storytelling ◽  
The Future

This paper is presented in order to understand the evolution of media dynamics in Brazil and investigate its perspectives for the future. Brazil, among the BRICS states (Brazil, Russia, India, China and South Africa), will be our focus. From a mono-mediatic paradigm to a convergent one, Brazil is developing new practices in fictional and non-fictional media. Our hypothesis is that the transmedia storytelling strategy is both the reality – although still timid – and the most probable future scenario for media development in Brazil. We can assert that transmedia storytelling is a tendency. Therefore, we will explore examples of transmedia storytelling initiatives in Brazilian media mainly related to journalism, entertainment, branding and advertisement.

‘VOICES’, MEANING AND ‘HETEROGLOSSIA’ IN PRISONERS OF HOPE (1995)

2017 ◽  
Vol 14 (1) ◽  
pp. 88-96
Author(s):  
Khatija Bibi Khan
Keyword(s):  
South Africa ◽  
Documentary Film ◽  
Textual Analysis ◽  
Political Prisoners ◽  
The Future ◽  
Human Capacity ◽  
Robben Island ◽  
Former Inmates

The documentary film Prisoners of Hope (1995) is a heart-rending account of 1 250 former political prisoners in the notorious Robben Island prison in South Africa. The aim of this article is to explore the narratives of Prisoners of Hope and in the process capture its celebratory mood and reveal the contribution that the prisoners made towards the realisation of a free South Africa. The documentary features interviews with Nelson Rolihlahla Mandela, Ahmed Kathrada and other former inmates as they recall and recount the atrocities perpetrated by defenders of the apartheid system and debate the future of South Africa with its ‘new’ political dispensation led by blacks. A textual analysis of Prisoners of Hope will enable one to explore the human capacity to resist, commit oneself to a single goal and live beyond the horrors and traumas of an oppressive and dehumanising system.

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