Open Access. Powered by Scholars. Published by Universities.®
Social and Behavioral Sciences Commons™
Open Access. Powered by Scholars. Published by Universities.®
- Discipline
Articles 1 - 14 of 14
Full-Text Articles in Social and Behavioral Sciences
Stochastic Modeling And Optimization Of Multi-Plant Capacity Planning Problem, Anoop Verma, Nagesh Shukla, S.K Tyagi, Nishikant Mishra
Stochastic Modeling And Optimization Of Multi-Plant Capacity Planning Problem, Anoop Verma, Nagesh Shukla, S.K Tyagi, Nishikant Mishra
Nagesh Shukla
n this paper the problem of capacity planning under risk from demand and price/cost uncertainty of the finished products is addressed. The deterministic model is extended into a two-stage stochastic model with fixed recourse by means of various expected levels of demand as random. A recourse penalty is also included in the objective for both shortage and surplus in the finished products. The model is analyzed to quantify the risk using Markowitz mean-variance model.
Multi-Level Controlled Signature, Pairat Thorncharoensri, Willy Susilo, Yi Mu
Multi-Level Controlled Signature, Pairat Thorncharoensri, Willy Susilo, Yi Mu
Professor Willy Susilo
In this work, we present and establish a new primitive called Multi-level Controlled Signature. This primitive allows a signer to specify a security level to limit the verifiability of the signature. This primitive works as follows. Without losing generality, we assume the security levels of a group of users are defined in ascending order, where “A” represents the lowest security level and “Z” represents the highest security level, respectively. When a signer signs a message by specifying a security level “C”, all users who have a security level greater than “C” will be able to verify while other users whose …
(Strong) Multi-Designated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Allen Au, Guomin Yang, Willy Susilo
(Strong) Multi-Designated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Allen Au, Guomin Yang, Willy Susilo
Professor Willy Susilo
Designated verifier signatures (DVS) allow a signer to create a signature whose validity can only be verified by a specific entity chosen by the signer. In addition, the chosen entity, known as the designated verifier, cannot convince any body that the signature is created by the signer. Multi-designated verifiers signatures (MDVS) are a natural extension of DVS in which the signer can choose multiple designated verifiers. DVS and MDVS are useful primitives in electronic voting and contract signing. In this paper, we investigate various aspects of MDVS and make two contributions. Firstly, we revisit the notion of unforgeability under rogue …
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Shi Xue Dou
We report on the comparative study of magnetotransport properties of large-area vertical few-layer graphene networks with different morphologies, measured in a strong (up to 10 T) magnetic field over a wide temperature range. The petal-like and tree-like graphene networks grown by a plasma enhanced CVD process on a thin (500 nm) silicon oxide layer supported by a silicon wafer demonstrate a significant difference in the resistance-magnetic field dependencies at temperatures ranging from 2 to 200 K. This behaviour is explained in terms of the effect of electron scattering at ultra-long reactive edges and ultra-dense boundaries of the graphene nanowalls. Our …
Multi-Objective Reactive Power Support From Wind Farms For Network Performance Enhancement, Lasantha Meegahapola, Brendan Fox, Tim Littler, Damian Flynn
Multi-Objective Reactive Power Support From Wind Farms For Network Performance Enhancement, Lasantha Meegahapola, Brendan Fox, Tim Littler, Damian Flynn
Dr Lasantha G Meegahapola
This paper examines the ability of the doubly fed induction generator (DFIG) to deliver multiple reactive power objectives during variable wind conditions. The reactive power requirement is decomposed based on various control objectives (e.g. power factor control, voltage control, loss minimisation, and flicker mitigation) defined around different time frames (i.e. seconds, minutes, and hourly), and the control reference is generated by aggregating the individual reactive power requirement for each control strategy. A novel coordinated controller is implemented for the rotor-side converter and the grid-side converter considering their capability curves and illustrating that it can effectively utilise the aggregated DFIG reactive …
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Large Networks Of Vertical Multi-Layer Graphenes With Morphology-Tunable Magnetoresistance, Zengji Yue, Igor Levchenko, Shailesh Kumar, Donghan Seo, Xiaolin Wang, S X. Dou, Kostya Ken Ostrikov
Zengji Yue
We report on the comparative study of magnetotransport properties of large-area vertical few-layer graphene networks with different morphologies, measured in a strong (up to 10 T) magnetic field over a wide temperature range. The petal-like and tree-like graphene networks grown by a plasma enhanced CVD process on a thin (500 nm) silicon oxide layer supported by a silicon wafer demonstrate a significant difference in the resistance-magnetic field dependencies at temperatures ranging from 2 to 200 K. This behaviour is explained in terms of the effect of electron scattering at ultra-long reactive edges and ultra-dense boundaries of the graphene nanowalls. Our …
A Multi-Agent Solution To Distribution System Management By Considering Distributed Generators, Fenghui Ren, Minjie Zhang, Darmawan Sutanto
A Multi-Agent Solution To Distribution System Management By Considering Distributed Generators, Fenghui Ren, Minjie Zhang, Darmawan Sutanto
Dr Fenghui Ren
A traditional distribution network carries electricity from a central power resource to consumers, and the power dispatch is controlled centrally. Distributed generators (DGs) emerge as an alternative power resource to distribution networks at a smaller and distributed scale, which will bring benefits such as reduced voltage drop and loss. However, because most of high penetration DGs are not utility owned and characterized by high degree of uncertainty such as solar and wind, the distribution network may perform differently from the conventionally expected behaviors. How to dynamically and efficiently manage the power dispatch in a distribution network to balance the supply …
Engaging With The (Un)Familiar: Field Teaching In A Multi-Campus Teaching Environment, Nicholas Gill, Michael Adams, Christine Eriksen
Engaging With The (Un)Familiar: Field Teaching In A Multi-Campus Teaching Environment, Nicholas Gill, Michael Adams, Christine Eriksen
Nicholas J Gill
Field trips have long been central to geography, but have been subject to assessment of the role of the 'field' in teaching. At the same time, academics face barriers to running field trips. Distance education and enhanced educational access for non-metropolitan students represented such an obstacle at an Australian university. These obstacles were taken as an opportunity to draw on the regional nature of the students and staff to enhance teaching goals, run critically informed field trips by and manage academic workloads. We evaluate the field trips by conducting surveys and interviews with students and tutors, and as an example …
(Strong) Multi-Designated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Allen Au, Guomin Yang, Willy Susilo
(Strong) Multi-Designated Verifiers Signatures Secure Against Rogue Key Attack, Yunmei Zhang, Man Ho Allen Au, Guomin Yang, Willy Susilo
Dr Guomin Yang
Designated verifier signatures (DVS) allow a signer to create a signature whose validity can only be verified by a specific entity chosen by the signer. In addition, the chosen entity, known as the designated verifier, cannot convince any body that the signature is created by the signer. Multi-designated verifiers signatures (MDVS) are a natural extension of DVS in which the signer can choose multiple designated verifiers. DVS and MDVS are useful primitives in electronic voting and contract signing. In this paper, we investigate various aspects of MDVS and make two contributions. Firstly, we revisit the notion of unforgeability under rogue …
Developing Multi-Literacies In Technology-Enhanced Environments, Natalie Cooper, Lori Lockyer, Ian M. Brown, David R. Blackall, Barry M. Harper
Developing Multi-Literacies In Technology-Enhanced Environments, Natalie Cooper, Lori Lockyer, Ian M. Brown, David R. Blackall, Barry M. Harper
David Blackall
Our lives are constantly being transformed by new technologies, global economies and cultures (Anstey, 2002). Educators in the 21st century are faced with the task of preparing students to function successfully in this ever changing and increasingly technological, globalised society. This has important implications for current practices in literacy education and it has been argued that new types of literacies need to be cultivated to ensure education is relevant in today’s society (Kellner, 2000). In fact, having a degree of mastery over a wide range of 21st century literacies may mean the difference between “a fully functioning life and one …
Collaboration In Supply Chain: A Multi-Agent Approach, Xin Li, Sim K. Lau
Collaboration In Supply Chain: A Multi-Agent Approach, Xin Li, Sim K. Lau
Dr Sim Kim Lau
Supply chain collaboration has become a critical success factor for supply chain management. Supply chain collaboration builds on information sharing, collaborative planning and execution. Many information systems have been developed for supply chain management. However, these systems do not sufficiently support collaborative supply chain. Recently, intelligent agent technology has received a great potential in supporting transparency in information flows and modeling the dynamic supply chain for collaborative supply chain. This paper explores the similarities between multi-agent system and supply chain to investigate the appropriateness of multi-agent based technology to model supply chain system and support collaborative supply chain planning and …
A Multi-Agent Approach Towards Collaborative Supply Chain Management, Xin Li, Sim K. Lau
A Multi-Agent Approach Towards Collaborative Supply Chain Management, Xin Li, Sim K. Lau
Dr Sim Kim Lau
Supply chain collaboration has become a critical success factor for supply chain management and effectively improves the performance of organizations in various industries. Supply chain collaboration builds on information sharing, collaborative planning and execution. Information technology is an important enabler of collaborative supply chain management. Many information systems have been developed for supply chain management from legacy systems and enterprise resource planning (ERP) into the newly developed advanced planning and scheduling system (APS) and e-commerce solutions. However, these systems do not provide sufficient support to achieve collaborative supply chain. Recently, intelligent agent technology and multi-agent system (MAS) have received a …
Group Cohesion And Homework Adherence In Multi-Family Group Therapy For Schizophrenia, Frank P. Deane, Joanne Mercer, Anahita Talyarkhan, Gordon Lambert, Judy Pickard
Group Cohesion And Homework Adherence In Multi-Family Group Therapy For Schizophrenia, Frank P. Deane, Joanne Mercer, Anahita Talyarkhan, Gordon Lambert, Judy Pickard
Frank Deane
This study examined the relationship between levels of group cohesion, defined as whole group relationships, and between-session therapeutic homework adherence in a multi-family group therapy (MFGT) for people with schizophrenia. Participants from 18 consenting families attending MFGT groups completed weekly homework adherence ratings, group cohesion and spontaneous between-session activity measures. Levels of group cohesion at each session were compared with measures of scheduled and spontaneous homework adherence reported at the next session. It was hypothesised that higher levels of group cohesion would be related to homework adherence and other spontaneous between-session therapeutic activity completed by group members. Results show higher …
Providing Language And Academic Skills Support In A Multi-Media And Distributed Learning Environment, Jeannette Stirling, L. Celeste Rossetto
Providing Language And Academic Skills Support In A Multi-Media And Distributed Learning Environment, Jeannette Stirling, L. Celeste Rossetto
Jeannette Stirling
[extract] This paper examines the role of the language and academic skills (LAS) lecturer in a multi-media and geographically distributed learning environment at the University of Wollongong. By this we mean providing language and academic skills support where subjects comprising various degree programs are taught simultaneously across a range of networked satellite campuses including, at times, the central campus: hence the idea of a ‘distributed learning environment’. Subject delivery to this network of campuses is variously achieved through the use of multi-media teaching and learning technologies such as videoconferencing, web-based resources, online discussion spaces, pod-cast lectures, and face-to-face tutorials. We …