A Comparison of Accuracy and Precision in Remote Sensing Stone-walled Structures with Google Earth, High Resolution Aerial Photography and LiDAR; a Case Study from the South African Iron Age

2015 ◽  
Vol 23 (2) ◽  
pp. 95-104 ◽  
Author(s):  
Karim Sadr
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
South African ◽  
Iron Age ◽  
Aerial Photography ◽  
Google Earth ◽  
The South ◽  
Accuracy And Precision ◽  
African Iron Age

Opera and the South African Political

2019 ◽  
pp. 289-311
Author(s):  
Christopher Ballantine
Keyword(s):  
South Africa ◽  
South African ◽  
Singing Voice ◽  
The South ◽  
Sociopolitical Context ◽  
Creating Meaning ◽  
Empirical Means

Christopher Ballantine’s focus is on timbre, in particular the timbre of the singing voice, and how this combines with the imagination to create meaning. His investigation is largely philosophical; but the growth in popularity of opera in post-apartheid South Africa provides empirical means for Ballantine to indicate this powerful but analytically neglected way of creating meaning in the performance of music. His case study shows how timbre can produce musical experiences that have a particular, and often surprising, resonance. Through interviews with leading figures in South African opera, Ballantine demonstrates that timbre is a vital wellspring of imagined meaning; it should especially be seen thus if we seek to understand the singing voice in a sociopolitical context such as that of South Africa during and after apartheid.

scholarly journals Investigating temperature breaks in the summer fruit export cold chain: A case study

2013 ◽  
Vol 7 (1) ◽  
Author(s):  
Heinri W. Freiboth ◽  
Leila Goedhals-Gerber ◽  
F. Esbeth Van Dyk ◽  
Malcolm C. Dodd
Keyword(s):  
Temperature Variation ◽  
South African ◽  
Temperature Data ◽  
Added Value ◽  
Cold Chain ◽  
The South ◽  
Export Supply ◽  
Cold Store ◽  
Summer Fruit

There is concern in the South African fruit industry that a large amount of fruit and money is lost every season due to breaks in the fruit export cold chain. The possibility of a large percentage of losses in a significant sector of the economy warranted further investigation. This article attempted to highlight some of the possible problem areas in the cold chain, from the cold store to the port, by analysing historic temperature data from different fruit export supply chains of apples, pears and grapes. In addition, a trial shipment of apples was used to investigate temperature variation between different pallets in the same container. This research has added value to the South African fruit industry by identifying the need to improve operational procedures in the cold chain.

Pollution Concepts and Marriage for the Southern African Iron Age

2013 ◽  
Vol 23 (2) ◽  
pp. 203-225 ◽  
Author(s):  
Gavin Whitelaw
Keyword(s):  
South African ◽  
Iron Age ◽  
Early Iron Age ◽  
Cousin Marriage ◽  
African Iron Age

This article draws on the ethnography of South African Bantu speakers to model an archaeologically useful relationship between pollution beliefs and marriage. Typically, pollution beliefs intensify with more complex marital alliances, first with the increasing significance of relations between wives and their cattle-linked siblings, and then with a shift towards a preference for cousin marriage. The article applies the model to the Early Iron Age (ad 650–1050) record and concludes that Early Iron Age agriculturists practised non-kin marriage, but that a high bridewealth, and possibly hypogamous marriage, generated considerable structural tension in Early Iron Age society.

scholarly journals Remote Sensing and Wetland Ecology: a South African Case Study

Sensors ◽  
2008 ◽  
Vol 8 (5) ◽  
pp. 3542-3556 ◽  
Author(s):  
Els De Roeck ◽  
Niko Verhoest ◽  
Mtemi Miya ◽  
Hans Lievens ◽  
Okke Batelaan ◽  
...  
Keyword(s):  
Remote Sensing ◽  
South African ◽  
Wetland Ecology

scholarly journals Managing Financially Distressed Suppliers in Supplier Development Programmes: A Case Study in the South African Retail Industry

2020 ◽  
Vol 17 (2) ◽  
pp. 144-178
Author(s):  
D HANEKOM ◽  
◽  
W NIEMANN ◽  
A MEYER ◽  
B BREYTENBACH ◽  
...  
Keyword(s):  
South African ◽  
Retail Industry ◽  
Supplier Development ◽  
The South ◽  
Financially Distressed

scholarly journals Detection of Archaeological Looting from Space: Methods, Achievements and Challenges

2019 ◽  
Vol 11 (20) ◽  
pp. 2389 ◽  
Author(s):  
Deodato Tapete ◽  
Francesca Cigna
Keyword(s):  
Remote Sensing ◽  
Image Processing ◽  
High Resolution ◽  
Satellite Data ◽  
Satellite Images ◽  
Google Earth ◽  
Optical Data ◽  
Mena Region ◽  
Processing Methods ◽  
Optical Imagery

Illegal excavations in archaeological heritage sites (namely “looting”) are a global phenomenon. Satellite images are nowadays massively used by archaeologists to systematically document sites affected by looting. In parallel, remote sensing scientists are increasingly developing processing methods with a certain degree of automation to quantify looting using satellite imagery. To capture the state-of-the-art of this growing field of remote sensing, in this work 47 peer-reviewed research publications and grey literature are reviewed, accounting for: (i) the type of satellite data used, i.e., optical and synthetic aperture radar (SAR); (ii) properties of looting features utilized as proxies for damage assessment (e.g., shape, morphology, spectral signature); (iii) image processing workflows; and (iv) rationale for validation. Several scholars studied looting even prior to the conflicts recently affecting the Middle East and North Africa (MENA) region. Regardless of the method used for looting feature identification (either visual/manual, or with the aid of image processing), they preferred very high resolution (VHR) optical imagery, mainly black-and-white panchromatic, or pansharpened multispectral, whereas SAR is being used more recently by specialist image analysts only. Yet the full potential of VHR and high resolution (HR) multispectral information in optical imagery is to be exploited, with limited research studies testing spectral indices. To fill this gap, a range of looted sites across the MENA region are presented in this work, i.e., Lisht, Dashur, and Abusir el Malik (Egypt), and Tell Qarqur, Tell Jifar, Sergiopolis, Apamea, Dura Europos, and Tell Hizareen (Syria). The aim is to highlight: (i) the complementarity of HR multispectral data and VHR SAR with VHR optical imagery, (ii) usefulness of spectral profiles in the visible and near-infrared bands, and (iii) applicability of methods for multi-temporal change detection. Satellite data used for the demonstration include: HR multispectral imagery from the Copernicus Sentinel-2 constellation, VHR X-band SAR data from the COSMO-SkyMed mission, VHR panchromatic and multispectral WorldView-2 imagery, and further VHR optical data acquired by GeoEye-1, IKONOS-2, QuickBird-2, and WorldView-3, available through Google Earth. Commonalities between the different image processing methods are examined, alongside a critical discussion about automation in looting assessment, current lack of common practices in image processing, achievements in managing the uncertainty in looting feature interpretation, and current needs for more dissemination and user uptake. Directions toward sharing and harmonization of methodologies are outlined, and some proposals are made with regard to the aspects that the community working with satellite images should consider, in order to define best practices of satellite-based looting assessment.

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