Open Research Repository
The Open Research Repository is the University’s online open access repository for collecting, maintaining and disseminating the scholarly output of the University.
Contribute to the Open Research Repository
Communities in DSpace
Select a community to browse its collections.
Recent Submissions
Item type: Publication , Access status: Metadata only , On the maximal numerical range of some matrices(2018-02-21) Hamed, Ali Nosherwan; Spitkovsky, Ilya MatveevichThe maximal numerical rangeW0(A) of a matrixAis the (regular) numerical rangeW(B) of its compressionBonto the eigenspaceLofA∗Acorresponding to its maximal eigenvalue. So, alwaysW0(A)⊆W(A). Conditions under whichW0(A) has a non-empty intersection with the boundary ofW(A) are established, in particular, whenW0(A) =W(A). ThesetW0(A) is also described explicitly for matrices unitarily similar to direct sums of 2-by-2 blocks, and some insight into thebehavior ofW0(A) is provided whenLhas codimension one.Item type: Publication , Access status: Metadata only , “It felt like walking in the dark”: A Collaborative Autoethnography on the Challenges of Conducting LGBTQ+ Research in Southeast Asia(2026) Bin Ibrahim, Muhamad Alif; G. Pamoso, Aron Harold; Truong, Quynh; Liow, Jun Wei; Delos Santos, Junix Jerald; Ratanashevorn, Rattanakorn; Ojanen, Timo; Htike, Nay Lin; Hastut, Lita Widyo; Liem, Andrian; Tan, KyleThe extant literature has shown that lesbian, gay, bisexual, transgender, and queer (LGBTQ+) communities face considerable barriers in pursuing higher education and achieving their academic aspirations. To date, a critical gap remains in scholarly understandings of the enablers and barriers faced by researchers conducting LGBTQ+ research in Southeast Asia (SEA). This study aims to illuminate the challenges of conducting LGBTQ+ research in Indonesia, Malaysia, Myanmar, the Philippines, Singapore, Thailand, and Vietnam. As researcher-participants in this study, we conducted a Collaborative Autoethnography, critically reflecting on our work and research with LGBTQ+ communities across these SEA countries. Data were analyzed using Reflexive Thematic Analysis. Through four themes, we illustrated the significant barriers encountered as we navigated the social, legal, and political contexts of SEA societies and academia. The neoliberal Western gaze in SEA academia further compounded these challenges. We grappled with how to garner trust from and represent our respective LGBTQ+ communities in our research. We also faced threats that negatively impacted our overall well-being. Our study underscores the urgency of creating safe spaces for LGBTQ+ researchers and their communities to collaborate on meaningful research agendas and interventions. Collaborative, multisectoral partnerships from various stakeholders can nurture an equity and social justice-based LGBTQ+ research agenda in the region.Item type: Publication , Access status: Metadata only , DNA functionalization of carbon nanotubes for ultrathin atomic layer deposition of high $ dielectrics for nanotube transistors with 60 mv/decade switching(2006) Lu, Yuerui; Bangsaruntip, Sarunya; Wang, Xinran; Zhang, Li; Nishi, Yoshio; Dai, HongjieFor single-walled carbon nanotube (SWNT) field effect transistors, vertical scaling of high κ dielectrics by atomic layer deposition (ALD) currently stands at ∼8 nm with a subthreshold swing S ≈ 70−90 mV/decade at room temperature. ALD on as-grown pristine SWNTs is incapable of producing a uniform and conformal dielectric layer due to the lack of functional groups on nanotubes and because nucleation of an oxide dielectric layer in the ALD process hinges upon covalent chemisorption on reactive groups on surfaces. Here, we show that by noncovalent functionalization of SWNTs with poly-T DNA molecules (dT40-DNA), one can impart functional groups of sufficient density and stability for uniform and conformal ALD of high κ dielectrics on SWNTs with thickness down to 2−3 nm. This enables approaching the ultimate vertical scaling limit of nanotube FETs and reliably achieving S ≈ 60 mV/decade at room temperature, and S ≈ 50 mV/decade in the band-to-band tunneling regime of ambipolar transport. We have also carried out microscopy investigations to understand ALD processes on SWNTs with and without DNA functionalization.Item type: Publication , Access status: Metadata only , Carbon Nanotube Transistors with 60mV/decade Switching and its Capacitance Measurement(TechConnect, 2007) Lu, Yuerui; Dai, Hongjie; Nishi, YoshioRecently, we have been able to approach the ultimate vertical scaling limit of carbon nanotube field effect transistors (FETs) and reliably achieve S ~ 60 mV/decade at room temperature, by non-covalent functionalization of single walled carbon nonotubes (SWNTs) with ploy-T DNA molecules, which can impart functional groups of sufficient density and stability for uniform and conformal ALD of high-? dielectrics (HfO2) with thickness down to 2-3 nm on SWNTs. Moreover, the small top gate stack capacitance (~300aF/um) of the SWNT FET has been successfully measured directly, using a special technique. The mobility of the SWNT FETs at room temperature is also extracted by the capacitance measured directly.Item type: Publication , Access status: Embargo , Taking Refuge: Buddhist Perspectives on Fear(Australian Scholarly Publications, 2023) Finnigan, Bronwyn; Nellor, Daniel