University of Wollongong

About: University of Wollongong is a education organization based out in Wollongong, New South Wales, Australia. It is known for research contribution in the topics: Population & Context (language use). The organization has 15674 authors who have published 46658 publications receiving 1197471 citations. The organization is also known as: UOW & Wollongong University.

Heterogeneous Spin States in Ultrathin Nanosheets Induce Subtle Lattice Distortion To Trigger Efficient Hydrogen Evolution

Abstract: The exploration of efficient nonprecious metal eletrocatalysis of the hydrogen evolution reaction (HER) is an extraordinary challenge for future applications in sustainable energy conversion. The family of first-row-transition-metal dichalcogenides has received a small amount of research, including the active site and dynamics, relative to their extraordinary potential. In response, we developed a strategy to achieve synergistically active sites and dynamic regulation in first-row-transition-metal dichalcogenides by the heterogeneous spin states incorporated in this work. Specifically, taking the metallic Mn-doped pyrite CoSe2 as a self-adaptived, subtle atomic arrangement distortion to provide additional active edge sites for HER will occur in the CoSe2 atomic layers with Mn incorporated into the primitive lattice, which is visually verified by HRTEM. Synergistically, the density functional theory simulation results reveal that the Mn incorporation lowers the kinetic energy barrier by promoting H–H bond ...

Advances in Mass Spectrometry for Lipidomics

Abstract: Recent expansion in research in the field of lipidomics has been driven by the development of new mass spectrometric tools and protocols for the identification and quantification of molecular lipids in complex matrices. Although there are similarities between the field of lipidomics and the allied field of mass spectrometry (e.g., proteomics), lipids present some unique advantages and challenges for mass spectrometric analysis. The application of electrospray ionization to crude lipid extracts without prior fractionation-the so-called shotgun approach-is one such example, as it has perhaps been more successfully applied in lipidomics than in any other discipline. Conversely, the diverse molecular structure of lipids means that collision-induced dissociation alone may be limited in providing unique descriptions of complex lipid structures, and the development of additional, complementary tools for ion activation and analysis is required to overcome these challenges. In this article, we discuss the state of the art in lipid mass spectrometry and highlight several areas in which current approaches are deficient and further innovation is required.

Small things make a big difference: binder effects on the performance of Li and Na batteries

Abstract: Li and Na batteries are very important as energy storage devices for electric vehicles and smart grids It is well known that, when an electrode is analysed in detail, each of the components (the active material, the conductive carbon, the current collector and the binder) makes a portion of contribution to the battery performance in terms of specific capacity, rate capability, cycle life, etc However, there has not yet been a review on the binder, though there are already many review papers on the active materials Binders make up only a small part of the electrode composition, but in some cases, they play an important role in affecting the cycling stability and rate capability for Li-ion and Na-ion batteries Poly(vinylidene difluoride) (PVDF) has been the mainstream binder, but there have been discoveries that aqueous binders can sometimes make a battery perform better, not to mention they are cheaper, greener, and easier to use for electrode fabrication In this review, we focus on several kinds of promising electrode materials, to show how their battery performance can be affected significantly by binder materials: anode materials such as Si, Sn and transitional metal oxides; cathode materials such as LiFePO4, LiNi1/3Co1/3Mn1/3O2, LiCoO2 and sulphur

Recovery: an international perspective.

Abstract: SUMMARY. Aims – To review developments in recovery-focussed mental health services internationally. Methods – Two forms of ‘recovery’ which have been used in the literature are considered, and international examples of recovery-focussed initiatives reviews. A ‘litmus test’ for a recovery-focussed service is proposed. Results – ‘Clinical recovery’ has emerged from professional literature, focuses on sustained remission and restoration of functioning, is invariant across individuals, and has been used to establish rates of recovery. ‘Personal recovery’ has emerged from consumer narratives, focuses on living a satisfying, hopeful and contributing life even with limitations caused by the illness, varies across individuals, and the empirical evidence base relates to stages of change more than overall prevalence rates. Clinical and personal recovery are different. Two innovative, generalisable and empirically investigated examples are given of implementing a focus on personal recovery: the Collaborative Recovery Model in Australia, and Trialogues in German-speaking Europe. The role of medication is an indicator: services in which all service users are prescribed medication, in which the term ‘compliance’ is used, in which the reasoning bias is present of attributing improvement to medication and deterioration to the person, and in which contact with and discussion about the service user revolves around medication issues, are not personal recovery-focussed services. Conclusions – The term ‘Recovery’ has been used in different ways, so conceptual clarity is important. Developing a focus on personal recovery is more than a cosmetic change – it will entail fundamental shifts in the values of mental health services. Declaration of Interest: None.

Event-Triggered Fault Detection of Nonlinear Networked Systems

Abstract: This paper investigates the problem of fault detection for nonlinear discrete-time networked systems under an event-triggered scheme. A polynomial fuzzy fault detection filter is designed to generate a residual signal and detect faults in the system. A novel polynomial event-triggered scheme is proposed to determine the transmission of the signal. A fault detection filter is designed to guarantee that the residual system is asymptotically stable and satisfies the desired performance. Polynomial approximated membership functions obtained by Taylor series are employed for filtering analysis. Furthermore, sufficient conditions are represented in terms of sum of squares (SOSs) and can be solved by SOS tools in MATLAB environment. A numerical example is provided to demonstrate the effectiveness of the proposed results.