Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication
- Publication Type
Articles 1 - 13 of 13
Full-Text Articles in Social and Behavioral Sciences
Structural Re-Assignment Of The Mono- And Bis-Addition Products From The Addition Reactions Of N-(Diphenylmethylene)Glycinate Esters To [60]Fullerene Under Bingel Conditions, Graham E Ball, Glenn Ashley Burley, Leila Chaker, William Hawkins, James Williams, Paul A. Keller, Stephen G. Pyne
Structural Re-Assignment Of The Mono- And Bis-Addition Products From The Addition Reactions Of N-(Diphenylmethylene)Glycinate Esters To [60]Fullerene Under Bingel Conditions, Graham E Ball, Glenn Ashley Burley, Leila Chaker, William Hawkins, James Williams, Paul A. Keller, Stephen G. Pyne
Paul Keller
The addition of N-(diphenylmethylene)glycinate esters (Ph2C=NCH2CO2R) to [60]fullerene under Bingel conditions gives [60]fullerenyldihydropyrroles and not methano[60]fullerenyl iminoesters [C60C(CO2R)(N=CPh2)] as previously reported. Unequivocal evidence for the structure of C60C(CO2Et)(N=CPh2) was provided by INADEQUATE NMR studies on 13C enriched material. New mechanistic details are proposed to account for the formation of [60]fullerenyldihydropyrroles and their reductive ring-opening reactions.
Under New Management: Whiteness In Post-Apartheid South African Life Writing, Antonio Simoes Da Silva
Under New Management: Whiteness In Post-Apartheid South African Life Writing, Antonio Simoes Da Silva
Tony Simoes da Silva
Alfred J. Lopez begins his introduction to postcolonial Whiteness: A Critical Reader on Race and Empire by stating "Whiteness is not, yet we continue for many reasons to act as though it is" (1). He is especially interested in "what happens to whiteness after empire," and proposes that it be understood as a dynamic relation of power. Despite the critical scrutiny it has attracted from whiteness studies, the racial category retains much of its ideological force. "The concept of whiteness as a cultural hegemon," Lopez argues, is manifest in "its lingering, if somewhat latent, hegemonic influence over much of the …
Simulation Down Under, Matthew P. Pepper, Trevor A. Spedding
Simulation Down Under, Matthew P. Pepper, Trevor A. Spedding
Trevor Spedding
This paper provides a brief literature review of the current applications of simulation in Australia. The paper identi-fies areas that use simulation modeling and dynamic tools for growth and improvement, while also highlighting opportunities for future applications of simulation. The simulation applications highlighted in this paper are focused on some of the most significant issues facing Australia today.
Electronic Interactions Within Composites Of Polyanilines Formed Under Acidic And Alkaline Conditions. Conductivity, Esr, Raman, Uv-Vis And Fluorescence Studies, L Dennany, P C. Innis, S T. Mcgovern, Gordon G. Wallace, Robert J. Forster
Electronic Interactions Within Composites Of Polyanilines Formed Under Acidic And Alkaline Conditions. Conductivity, Esr, Raman, Uv-Vis And Fluorescence Studies, L Dennany, P C. Innis, S T. Mcgovern, Gordon G. Wallace, Robert J. Forster
Gordon Wallace
The properties of two forms of polyaniline (PAni) synthesised under acidic and basic conditions have been investigated both individually and as combined complexes. The PAni polymerised within alkaline media was redox inactive and non-conducting while the PAni emeraldine salt (ES) was electroactive and conducting. Raman, electron spin resonance, UV-Vis and fluorescence spectroscopies were used to monitor the changes in electronic properties of these conducting polymer composites. Solution cast films of alkaline synthesised (A-PAni) with the PAni ES resulted in an increase in the high spin polaron population suggesting that it acts as a pseudodopant. The ability of the A-PAni to …
Behaviour Of Clay-Fouled Ballast Under Drained Triaxial Testing, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Shrawan Nimbalkar, Cholachat Rujikiatkamjorn
Behaviour Of Clay-Fouled Ballast Under Drained Triaxial Testing, Buddhima Indraratna, Nayoma C. Tennakoon, Sanjay Shrawan Nimbalkar, Cholachat Rujikiatkamjorn
Faculty of Engineering and Information Sciences - Papers: Part A
Contamination or fouling of rail ballast with external fines, including slurried and pumped subgrade material (e.g. clay and silt), is one of the primary reasons for track deterioration. Fouling causes differential settlement of the track, and also decreases the load-bearing capacity, owing to the reduction in the friction angle of the granular assembly. In certain circumstances, fouled ballast needs to be cleaned or replaced to maintain the desired track stiffness, load-bearing capacity and track alignment, all of which influence safety. This paper presents and discusses the results of a series of large-scale triaxial tests conducted on latite basalt, a rail …
Fully Secure Hidden Vector Encryption Under Standard Assumptions, Jong Hwan Park, Kwangsu Lee, Willy Susilo, Dong Hoon Lee
Fully Secure Hidden Vector Encryption Under Standard Assumptions, Jong Hwan Park, Kwangsu Lee, Willy Susilo, Dong Hoon Lee
Faculty of Engineering and Information Sciences - Papers: Part A
Hidden Vector Encryption (HVE) is a special type of predicate encryption that can support conjunctive equality and range searches on encrypted data. All previous HVE schemes were proven to be either selectively secure or weakly attribute-hiding. In this paper, we first construct a new HVE scheme that is fully secure under standard assumptions. Our HVE scheme, which is based on bilinear maps (pairings), provides efficiency advantages in that it requires O(1)-sized private keys and O(1) pairing computations for decryption, regardless of both the number of conjunctives and the dimension of vectors. To achieve our goal, we develop a novel technique …
Deformation Of Coal Fouled Ballast Stabilized With Geogrid Under Cyclic Load, Buddhima Indraratna, Ngoc Trung Ngo, Cholachat Rujikiatkamjorn
Deformation Of Coal Fouled Ballast Stabilized With Geogrid Under Cyclic Load, Buddhima Indraratna, Ngoc Trung Ngo, Cholachat Rujikiatkamjorn
Faculty of Engineering and Information Sciences - Papers: Part A
This paper presents the results of laboratory investigations into the deformation of coal fouled ballast stabilized with geogrid at various degrees of fouling. A novel track process simulation apparatus was used to simulate realistic rail track conditions subjected to cyclic loading, and the void contamination index (VCI) was used to evaluate the level of ballast fouling. The experimental results show that coal fines act as a lubricant, causing grains of ballast to displace and rotate, and as a result, accelerate its deformation. However, coal fines also reduce ballast breakage because of a cushioning effect, that is, by reducing interparticle attrition. …
Removal Of Bisphenol A And Diclofenac By A Novel Fungal Membrane Bioreactor Operated Under Non-Sterile Conditions, Shufan Yang, Faisal I. Hai, Long D. Nghiem, Luong N. Nguyen, Felicity Roddick, William E. Price
Removal Of Bisphenol A And Diclofenac By A Novel Fungal Membrane Bioreactor Operated Under Non-Sterile Conditions, Shufan Yang, Faisal I. Hai, Long D. Nghiem, Luong N. Nguyen, Felicity Roddick, William E. Price
Faculty of Engineering and Information Sciences - Papers: Part A
Previous studies have confirmed significant removal of various trace organic contaminants (TrOCs) by white-rot fungal cultures under sterile batch test conditions. However, little is known about TrOC removal in continuous flow fungal reactors in a non-sterile environment. This study reports the removal of two TrOCs, namely, bisphenol A and diclofenac, by a fungal membrane bioreactor (MBR).
Sizing Optimization Of Trapezoidal Corrugated Roof Sheeting, Supporting Solar Panels, Under Wind Loading, P Sharafi, Lip H. Teh, Muhammad N. S Hadi
Sizing Optimization Of Trapezoidal Corrugated Roof Sheeting, Supporting Solar Panels, Under Wind Loading, P Sharafi, Lip H. Teh, Muhammad N. S Hadi
Faculty of Engineering and Information Sciences - Papers: Part A
The dimensions of trapezoidal roof sheeting supporting solar panels are optimized so that a minimum amount of steel is required for a specific range of wind loads. Sheets of different grades and different thicknesses along with different ranges of wind speeds are considered. In order to simulate the behavior of the corrugated sheets analysis is carried out for two limit states: strength and serviceability. For both limit states, the objective is to minimize the weight per unit area of the panels. First, optimum cross-section is obtained to meet the strength conditions. Then the deflection is controlled for serviceability. The optimum …
Decentralised Task Allocation Under Space, Time And Communication Constraints For Disaster Domain, Xing Su, Minjie Zhang, Quan Bai
Decentralised Task Allocation Under Space, Time And Communication Constraints For Disaster Domain, Xing Su, Minjie Zhang, Quan Bai
Faculty of Engineering and Information Sciences - Papers: Part A
The coordination of dynamic task allocation based on available resources is very challenging in disaster domains under time, space and communication constraints. In addition, it is also very hard or even impossible to achieve tasks allocation by using a centralised manner with the global knowledge of the working environment. This paper presents a novel decentralised coordination approach for dynamic task allocation by considering space, time and communication constraints in a disaster domain, and workloads and priorities of different tasks. In this approach, a group formation mechanism is proposed to help agents with limited communication range to achieve effective task allocation …
Behaviour Of A Compacted Silty Sand Under Constant Water Content Shearing, Ana Heitor, Cholachat Rujikiatkamjorn, Buddhima Indraratna
Behaviour Of A Compacted Silty Sand Under Constant Water Content Shearing, Ana Heitor, Cholachat Rujikiatkamjorn, Buddhima Indraratna
Faculty of Engineering and Information Sciences - Papers: Part A
This structure derived from compacting the soil at different water contents and energy levels can have a substantial effect on its shear strength. While the shear strength with varying suction can be estimated based on the saturated shear strength parameters and the unsaturated angle of shearing resistance (0b), limited studies have explored the variation of strength properties with different compaction states. In this paper, the shear strength of a silty sand soil was investigated using a conventional direct shear box under constant water content condition. The tests were conducted on specimens prepared by Proctor compaction with three different normal pressures. …
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Coke Microstructure And Strength Under Blast Furnace Conditions, Xing Xing, Guangqing Zhang, Harold Rogers, Paul Zulli, Oleg Ostrovski
Faculty of Engineering and Information Sciences - Papers: Part A
No abstract provided.
Disability In Zimbabwe Under The New Constitution: Demands And Gains Of People With Disabilities, Jacob Mugumbate, Chamunogwa Nyoni
Disability In Zimbabwe Under The New Constitution: Demands And Gains Of People With Disabilities, Jacob Mugumbate, Chamunogwa Nyoni
Faculty of Social Sciences - Papers (Archive)
People with disabilities looked at the constitution making process as their biggest opportunity to have their dreams realised. They had numerous expectations including increased opportunities in health, education, social protection, habitation, participation and employment. Although they were excluded from the first stages of the process, they were later actively involved. The outcome of their involvement has been several provisions in the constitution addressing disability concerns. The extent to which these provisions are adequate or inadequate has been a subject of contention. This article looks at the provisions in the final version of the constitution that received presidential assent on 22 …