List of Titles

Quick View

A 1394-based Architecture for professional audio production

- Moses, Bob, Laubscher, Rob, Foss, Richard

Authors: Moses, Bob , Laubscher, Rob , Foss, Richard
Date: 2000
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427318 , vital:72430 , https://www.aes.org/e-lib/browse.cfm?elib=9092
Description: With the advent of the IEEE 1394 standard, many audio device manufacturers have anticipated its employment within audio production systems, with the hope that future audio production systems will utilize this single connection type for the transmission of all audio and control data. This paper outlines extensive work that has been performed on the design and implementation of 1394 audio production components and, in the process, describes the resolution of the problems that arise when audio and audio device control data pass across 1394.
Full Text:
Date Issued: 2000

Quick View

AES-24 and MIDINet-A Comparative Study of Their Object Models and Implementations

- Foss, Richard, Klinkradt, Bradley

Authors: Foss, Richard , Klinkradt, Bradley
Date: 2000
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427390 , vital:72435 , https://www.aes.org/e-lib/browse.cfm?elib=9220
Description: AES-24 and MIDINet object models have been used to create corresponding implementations. Both implementations utilize a network of IBM PCs running the Windows operating system. The transport protocol in each case is the Internet Protocol (IP). The object models of the two systems have some differences and similarities that have an impact on the application protocols. Arising from this study are pointers toward the incorporation of MIDI transport into the AES-24 framework.
Full Text:
Date Issued: 2000

Quick View

May essential provisions of a contract be determined by one of the parties alone

- Kerr, Alistair J, Glover, Graham B

Authors: Kerr, Alistair J , Glover, Graham B
Date: 2000
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/70912 , vital:29759 , https://heinonline.org/HOL/Page?handle=hein.journals/soaf117&id=211&collection=journals&index=
Description: When the Supreme Court of Appeal raises a question but does not answer it, what it says can be interpreted as an invitation to all those interested in the topic to discuss it. This note is a response to such an invitation in NBS Boland Bank v One Berg River Drive CC, Deeb v ABSA Bank Ltd, Friedman v Standard Bank of South Africa Ltd 1999 (4) SA 928 (SCA);[1999] 4 All SA 183, hereinafter referred to as the NBS Boland Bank case.
Full Text: false
Date Issued: 2000

Quick View

A continuous process for the biological treatment of heavy metal contaminated acid mine water

- Van Hille, Robert P, Boshoff, G A, Rose, Peter D, Duncan, John R

Authors: Van Hille, Robert P , Boshoff, G A , Rose, Peter D , Duncan, John R
Date: 1999
Language: English
Type: Article
Identifier: vital:6464 , http://hdl.handle.net/10962/d1005793 , dx.doi.org/10.1016/S0921-3449(99)00010-5
Description: Alkaline precipitation of heavy metals from acidic water streams is a popular and long standing treatment process. While this process is efficient it requires the continuous addition of an alkaline material, such as lime. In the long term or when treating large volumes of effluent this process becomes expensive, with costs in the mining sector routinely exceeding millions of rands annually. The process described below utilises alkalinity generated by the alga Spirulina sp., in a continuous system to precipitate heavy metals. The design of the system separates the algal component from the metal containing stream to overcome metal toxicity. The primary treatment process consistently removed over 99% of the iron (98.9 mg/l) and between 80 and 95% of the zinc (7.16 mg/l) and lead (2.35 mg/l) over a 14-day period (20 l effluent treated). In addition the pH of the raw effluent was increased from 1.8 to over 7 in the post-treatment stream. Secondary treatment and polishing steps depend on the nature of the effluent treated. In the case of the high sulphate effluent the treated stream was passed into an anaerobic digester at a rate of 4 l/day. The combination of the primary and secondary treatments effected a removal of over 95% of all metals tested for as well as a 90% reduction in the sulphate load. The running cost of such a process would be low as the salinity and nutrient requirements for the algal culture could be provided by using tannery effluent or a combination of saline water and sewage. This would have the additional benefit of treating either a tannery or sewage effluent as part of an integrated process.
Full Text:
Date Issued: 1999

Quick View

A Distributed System for the Creation and Delivery of Ambisonic Surround Sound Audio

- Foss, Richard, Smith, Adrian

Authors: Foss, Richard , Smith, Adrian
Date: 1999
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427347 , vital:72432 , https://www.aes.org/e-lib/online/browse.cfm?elib=8044
Description: A system has been created for the production of ambisonic surround sound compositions using a client-server architecture. Those calculations requiring processing power and large amounts of disc storage and disc access are relegated to the server, while the client provides an intuitive user interface and limited processing. The server plays the role of a remote surround sound processing engine, which can be utilized by clients. The system has been constructed, and the feasibility of the approach has been evaluated via experimental data.
Full Text:
Date Issued: 1999

Quick View

The Development of a Generic Framework for the Implementation of Cheap, Component-Based Virtual Video-Conferencing System

- Panagou, Soteri, Bangay, Shaun D

Authors: Panagou, Soteri , Bangay, Shaun D
Date: 1999
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/432824 , vital:72903 , https://www.cs.ru.ac.za/research/Groups/vrsig/pastprojects/014humanmodelling/paper03.pdf
Description: We address the problem of virtual-videoconferencing. The proposed solution is effected in terms of a generic framework based on an in-house Virtual Reality system. The framework is composed of a number of distinct components: model acquisition, head tracking, expression analysis, network transmission and avatar reconstruction. The framework promises to provide a unique, cheap, and fast system for avatar construction, transmission and animation. This approach affords a conversion from the traditional video stream approach to the management of an avatar remotely and consequently makes minimal demands on network resources.
Full Text:
Date Issued: 1999

Quick View

Gender activity report to the NEC of the 12th-14th November 1998

- National Union of Metalworkers of South Africa

Authors: National Union of Metalworkers of South Africa
Date: 1998-11-12
Subjects: Uncatalogued
Language: English
Type: text , pamphlet
Identifier: http://hdl.handle.net/10962/106370 , vital:32645
Description: As per our Congress Resolution on Women Empowerment, the main objective for this year (1998) was to implement some of these resolutions. It is obvious that not all the resolutions could be realized this year, however, this department managed to execute the following as per our year plan: mechanisms to empower women in the union, develop education and training programmes on women’s needs, encourage male comrades to take part in gender activities/programmes to raise understanding of gender issues. The above issues were going to be actualized in the following way: national gender schools and gender workshops.
Full Text:
Date Issued: 1998-11-12

Quick View

From Sequencer to IP Packets-Routing MIDI Messages Over Longer Distances

- Foss, Richard

Authors: Foss, Richard
Date: 1998
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427418 , vital:72437 , https://www.aes.org/e-lib/browse.cfm?elib=8476
Description: This paper describes the operation, and design of a MIDI-to-IP-to-MIDI router which overcomes the channel and distance limitations inherent in the MIDI protocol. It allows Windows-based programs and MIDI transmitters to route MIDI messages over long distances to MIDI receiving devices. Each networked PC in the system has one or more MIDI input/output ports. MIDI transmitters and receivers are connected to the input and output ports, respectively, and are given symbolic names. The system allows connections to be made between the transmitters and receivers.
Full Text:
Date Issued: 1998

Quick View

Prince Edward Islands' offshore oceanographic study: report of research cruise April-May 1997

- Pakhomov, Evgeny A, Froneman, P William, Ansorge, Isabelle J

Authors: Pakhomov, Evgeny A , Froneman, P William , Ansorge, Isabelle J
Date: 1998
Language: English
Type: text , article
Identifier: vital:6939 , http://hdl.handle.net/10520/AJA00382353_9017 , https://journals.co.za/content/sajsci/94/4/AJA00382353_9017 , http://hdl.handle.net/10962/d1011962
Description: preprint , Focuses on the preliminary results of the second cruise of the Marion Island Oceanographic Study designed to provide oceanological observations off Prince Edward Islands from April 25 to May 28, 1997. Physical and chemical oceanographic results; Surface seawater temperature; Total chlorophyll-a distribution.
Full Text:
Date Issued: 1998

Quick View

Visiview: a system for the visualization of multidimensional data

- Bangay, Shaun D

Authors: Bangay, Shaun D
Date: 1998
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/433466 , vital:72972 , https://doi.org/10.1117/12.309530
Description: Results generated by simulation of computer systems are often presented as a multi-dimensional data set, where the number of dimensions may be greater than 4 if sufficient system parameters are modelled. This paper describes a visualization system intended to assist in understanding the relationship between, and effect upon system behavior of, the different values of the system parameters. The system is applied to data that cannot be represented using a mesh or isosurface representation, and in general can only be represented as a cloud of points. The use of stereoscopic rendering and rapid interaction with the data are compared with regard to their value in providing insight into the nature of the data. A number of techniques are implemented for displaying projections of the data set with up to 7 dimensions, and for allowing intuitive manipulation of the remaining dimensions. In this way the effect of changes in one variable in the presence of a number of others can be explored. The use of these techniques, when applied to data from computer system simulation, results in an intuitive understanding of the effects of the system parameters on system behavior.
Full Text:
Date Issued: 1998

Quick View

Globlisation, structural adjustmentand education

- SADTU

Authors: SADTU
Date: 1997
Subjects: SADTU
Language: English
Type: text
Identifier: http://hdl.handle.net/10962/178613 , vital:42960
Description: Globalisation of finance: restructuring of capital such as global financial speculation, mergers + closures). Globalisation of production: restructuring of work (changing processes and location of production), restructuring of labour markets (structural unemployment, rise in part-time and casual workers and homeworkers). Globalisation of culture: dominance of ‘American lifestyles’. Globalisation of the state (government): restructuring of the state (state following rather than compensating for ‘free-market logic’, restrictions on trade union freedoms and political rights, shifts away from national control over resources and policies to international structures such as WTO, IMF, World Bank).
Full Text:
Date Issued: 1997

Quick View

The honeybees, Apis mellifera Linnaeus (Hymenoptera: Apidae) of woodland savanna of southeastern Africa

- Radloff, Sarah E, Hepburn, H Randall, Villet, Martin H

Authors: Radloff, Sarah E , Hepburn, H Randall , Villet, Martin H
Date: 1997
Language: English
Type: Article
Identifier: vital:6829 , http://hdl.handle.net/10962/d1012341
Description: The morphometric characters and sting pheromones of worker honeybees, Apis mellifera Linnaeus, were analysed by multivariate methods to identify discrete populations in the southeastern woodland savanna of Africa. A discrete population in Mozambique is classified as A. m. litorea Smith, a second in Zimbabwe as A. m. scutellata Lepeletier and a third group in southwestern Zambia as A.m. adansonii Latreille. A zone of introgression between the last two subspecies occurs in south-central Zambia and in the Zambezi Valley.
Full Text:
Date Issued: 1997

Quick View

Routing MIDI messages over Ethernet

- Foss, Richard, Mosala, Thabo

Authors: Foss, Richard , Mosala, Thabo
Date: 1996
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427486 , vital:72442 , https://www.aes.org/e-lib/browse.cfm?elib=7898
Description: A system known as the MIDINet system has been created,which routes MIDI messages between MIDI-compatible source and destination devices. These devices are attached to nodes which in turn are linked into an Ethernet network. Message routing is facilitated by the MIDINet protocol, which is a layer above standard Ethernet. The performance of the system has been measured and documented. In order to address the nondeterminism of Ethernet, a token bus protocol layer has been introduced between the Ethernet and MIDINet layers. The MIDINet system is being used to enhance MIDI routing in a music studio network where studio resources are shared between remote music stations.
Full Text:
Date Issued: 1996

Quick View

Shakespeare and the self: being true to Hamlet

- Gouws, John S

Authors: Gouws, John S
Date: 1996
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/457856 , vital:75685 , https://hdl.handle.net/10520/AJA1011582X_93
Description: Shakespeare is very definitely not our contemporary. This seems very obvious, but we have a way of forgetting it, or rather of allowing it to elude us. For all sorts of reasons we would like to read his works as if they were by the genius bloke living next door. The surest way of re-vealing that he is not is to talk about the self, because at this level Shakespeare is very unlike us. When we attempt to talk about Shake-speare or any of his contemporaries it is very easy at a conscious level to keep a proper alien distance, but we leave unguarded the one area brought unstatedly into the conversation-our insinuating selves. In much the same way, he and his contemporaries informed all their con-versation by a necessarily unexamined self, a self which informed, constituted, everything they said and did. And because we do not artic-ulate its presence, we treat it like the inscribed circuitry on a silicone chip, the software of our word-processing programme or like English grammar. In other words. we assume. mistakenly. it is the same for all of us. But each of us does not have a pentium chip. nor do we all use Word Perfect. nor does every speaker in the world use English gram-mar (and there is no Universal Grammar). I have therefore set myself a very difficult task: to talk about what is presupposed by talk. though rarely talked about.
Full Text:
Date Issued: 1996

Quick View

Showing items 241 - 260 of 292