82,008 research outputs found
Author, Geraldine Brooks at the National Library of Australia for the 2009 Ray Mathew Lecture, Canberra, 23 October 2009 [picture] /
No full textTitle from acquisitions documentation.; Part of the collection: Portraits of author, Geraldine Brooks during her visit to the National Library of Australia for the 2009 Ray Mathew Lecture, Canberra, 23 October 2009.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia
Sustainable developments in knitting
No full textThe global community is aware that policies and practices regarding human consumption of resources need to change. Sustainability is now a dominant factor within government policies worldwide. A recent report compiled on behalf of the European Union identified clothing and textiles as key industries in terms of reducing environmental impact. In response to this report the UK government devised the clothing roadmap to investigate sustainable developments within these industries.
Sustainable design was identified as one area for improvement. This paper acknowledges that the clothing supply chains are not transparent. Consumers can purchase garments produced from organic and eco fibres since labelling indentifies the raw material sources. However, it is less straightforward to purchase garments produced using sustainable technologies since processing information is not displayed at the point of sale. This paper investigates sustainability within the knitwear industry and challenges the view that the textile manufacturing industries are significant contributors to energy consumption
Portrait of Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008, 1 [picture] /
No full textTitle from acquisitions documentation.; Part of the collection: Portraits of author Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia
Portrait of Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008, 2 [picture] /
No full textTitle from acquisitions documentation.; Part of the collection: Portraits of author Robert Dessaix in the National Library of Australia bookshop, Canberra, 10 October 2008.; Acquired in digital format; access copy available online.; Mode of access: Internet via World Wide Web.; Photographed by a staff member of the National Library of Australia
Examination of issues affecting the teaching and learning of large cohorts within practical-based subjects
No full textThe aim of this work is to advance the teaching and learning of practical-based subjects in the higher education (HE) sector. Part of the study involved the development of a model that enhanced the teaching and learning of textiles within large groups of clothing design learners. This article begins by reviewing current literature regarding adult learning. The middle section discusses the findings of a previous study conducted in HE over a period of 3 years, which focused on promoting autonomous learning within the domain of textiles/materials. The current investigation examined the use of active learning strategies within practical-based subjects for large cohorts of level 4 (NQF) undergraduate learners. The study measures the effectiveness of active learning through a practitioner reflective journal, descriptive statistics obtained through learner formative evaluation, engagement and attainment. It was concluded that active learning was a successful strategy to promote the development of metacognition, effective progression to autonomous learning and the enhancement of employability skills
Fabric objective measurements for commercial 3D virtual garment simulation
No full textPurpose – The aim of this paper was to explore the use of objective fabric parameters in 3-D virtual garment simulation.
Design Method – Two methods (FAST and Browzwear’s fabric testing kit) of obtaining objective fabric measurements and the derived parameters for virtual garment simulation were studied. Three parameters (extension, shear and bend) were investigated to establish if the selected virtual software derived comparable parameters from the objective fabric measurements.
Findings – It was found that the conversion from the objective fabric measurement data to the required parameters for virtual simulation varied significantly. Manual analysis of the objective measurements showed the two test methods to be comparable for extension and shear parameters; However, some adjustment to the test method was required. The third parameter to be investigated (bending rigidity) concluded that the test methods and results obtained from the two different apparatus were not comparable and recommended further experimentation using a different testing technique.
Research limitations/implications – Future research should be conduct on a larger variety of fabrics ensuring comparable loads are used in the testing of the extensibility parameters. An expansion of this preliminary study should give more conclusive evidence of the trends observed.
Originality –Objective measurement of extension, shear and bend properties were investigated in relation to the derived parameters for a selected virtual simulation package. An understanding of such parameters will aid the general industry in adapting 3D virtual garment simulation as part of the standard product development process, resulting in a significantly shorter product development cycle
Functional to fashionable : knitwear's evolution throughout the last century and into the millennium
No full textSince the days of the humble hose, knitwear has expanded into a revolutionary industry that is classified within the high fashion category. This paper presents an investigation into knitwear's evolution, which can only be described as remarkable from functional items of clothing to fashionable cutting edge styling utilizing the most advanced technology. The first obvious sign of knitwear changing its role from functional to fashionable, occurred during the latter part of the 19th century and the early part of the 20th century, and since then knitwear has never looked back. The 1920s brought about the birth of the classic twin -set promoted strongly by the English gentry and reinforced by a huge advertising campaign that pushed knitwear irrevocably to the forefront of fashion. The 30s remained quiet in terms of knitted fashion whilst the knitwear industry struggled to survive against the cheaper foreign imports. By the mid 30s the industry had recovered and had become ever more directional. However, it was not until after the second world war that a strong push was made in terms of design education to promote knitwear as a fashion item in its own right (rather than a mere accessory). Post the Second World War, fabric was in abundance and the classic knitted twin-set once again became high fashion with American film stars promoting the sophisticated image of knit. What a pity by the time we arrived at the forward thinking 50s we had not yet developed the electronics to support the innovation. Pioneers in the field of 3-D development were hindered by the lack of technology during this period and to some extent the technology did not materialize until the birth of the new millennium
Battery Storage System as Power Unbalance Redistributor in Distribution Grids Based on Three Legs Four Wire Voltage Source Converter
No full textThis article discusses the application of battery energy storage systems (BESSs) as power redistributors in three-phase distribution grids as an add-on functionality to typical BESS applications, such as congestion management and energy arbitrage. Combining those ancillary services into a single power unit is not yet performed in practice but may constitute an emerging business opportunity to increase the BESS revenues. The unbalanced operation of the BESS voltage source converter (VSC) leads to the circulation of low-frequency current harmonics in the dc-link through the capacitors and the battery cells. Therefore, it is particularly interesting whether relatively large 50- and 100-Hz currents can safely circulate within these components. Analytical modeling and design guidelines for the dc-link of a three-leg four-wire two-level VSC operating under unbalanced loads are detailed. Furthermore, a low-power VSC prototype is used to demonstrate the working principle of the BESS, providing power unbalance redistribution and symmetric power exchange. Additionally, the ICR18650-26F Lithium-ion cells are cycled to reach end-of-life with different current profiles and C-ratings. The analysis shows that charging with a 100 Hz ripple superimposed to the dc current leads to a 10% increment in degradation
Effects of power electronic compensation on distribution network thermal and voltage violations
No full textThis paper is concerned with the use of medium-voltage power electronics in providing active compensation to distribution networks. The primary purpose of using active compensation is to allow for network growth in the form of distributed generation or customer demand increases. With continuing growth, network thermal and voltage constraints would eventually be violated at some point, even with the use of power electronic compensation. Through the study of increasing generation on several hundred distribution network datasets, trends in the type and location of these constraint breaches are identified for both uncompensated and compensated networks. In comparing the initial types of constraint breaches in uncompensated and compensated networks, the use of power electronics is seen to eliminate overvoltage issues as the primary concern in many cases. In addition, while power electronic compensation is seen to make a significant change in the growth accommodated before constraint breach, the location of these initial breaches is not altered appreciably
Benefits of distribution-level power electronics for supporting distributed generation growth
No full textIt is expected that distribution networks will be required to accommodate large amounts of distributed generation (DG). Keeping power flows and voltages within their limits will require either traditional infrastructure upgrades or active compensation. The form of active compensation (e.g., series, shunt, back to back, multiterminal), quantity, and rating of the compensator should be chosen to realize the best cost-benefit ratio. Distributed-generator and compensator placement algorithms are used with a power-flow and constraint satisfaction algorithm to analyze a large number of case studies (using real U.K. network data). From these cases, assessments of compensator performance are made and summarized statistically. When considering incremental deployment across all networks, with the site of greatest benefit chosen at each increment, it is found that static synchronous compensators provide the most favorable cost-benefit ratio. In contrast, multiterminal voltage-source converters tend to provide the greatest flexibility when considering uniform deployment across all networks. It is also observed that traditional reinforcement enhances the benefits provided by active compensation
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