18397 research outputs found
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Behavioural determinants of consumers intention to recycle and reuse end-of-life garments in Australia
No full textAustralians are consuming fashion products at a fast rate resulting in increased waste being disposed of in landfills, negatively impacting the environment. We explored two solutions for the waste issue: recycling and reusing end-of-life garments. We proposed that achieving circularity requires a collaborative effort among all fashion supply chain agents. Recommendations are made to educate, raise awareness, and establish engagement activities on recycling and reusing end-of-life garments amongst consumers. Lessons can be learned from European countries that are leaders in sustainable fashion disposal. The Government should drive the shift towards circularity by providing initiatives such as funding and policy changes
Reconceiving Bridal Fashions Through 3D Printing Technology: A Response to the Changing Attitudes, Needs and Preferences of North Indian Brides
No full textThe Lehenga, the centerpiece of North Indian weddings, has a rich history reflecting Mughal artistry. Today, it drives a growing wedding industry, reshaping bridal fashion. Bridal media and social platforms inspire Indian brides to embrace individual preferences over traditional norms. Designer wear replaces inherited Lehengas, with mass customization meeting diverse demands. Meanwhile, the apparel industry explores digital innovations like 3D printing, AI, and virtual reality. This thesis explores 3D printing's potential in creating innovative bridal Lehengas, contributing to apparel design through practice-based research and brides' attitudes towards innovation. It bridges tradition and technology, shaping the future of Indian bridal wear
Novel Al2CoCrFeNi high-entropy alloy coating produced using suspension high velocity air fuel (SHVAF) spraying
No full textMetallic coatings of Al2CoCrFeNi high entropy alloy (HEA) were deposited using the suspension high velocity air fuel spray (SHVAF) process, towards exploring its viability as a bond coat in thermal barrier coatings. The relatively high Al content promoted a BCC + B2 phase-dominated coating structure, leading to enhanced mechanical properties. The oxidized microstructure exhibited a protective Al2O3 layer with characteristics comparable to conventional bond coat alloys
GWCloud: A Searchable Repository for the Creation and Curation of Gravitational-wave Inference Results
No full textThere are at present O(100) gravitational-wave candidates from compact binary mergers reported in the astronomical literature. As detector sensitivities are improved, the catalog will swell in size: first to O(1000) events in the A+ era and then to O(10(6)) events in the era of third-generation observatories like Cosmic Explorer and the Einstein Telescope. Each event is analyzed using Bayesian inference to determine properties of the source including component masses, spins, tidal parameters, and the distance to the source. These inference products are the fodder for some of the most exciting gravitational-wave science, enabling us to measure the expansion of the universe with standard sirens, to characterize the neutron-star equation of state, and to unveil how and where gravitational-wave sources are assembled. In order to maximize the science from the coming deluge of detections, we introduce GWCLOUD, a searchable repository for the creation and curation of gravitational-wave inference products. It is designed with five pillars in mind: uniformity of results, reproducibility of results, stability of results, access to the astronomical community, and efficient use of computing resources. We describe how to use GWCLOUD with examples, which readers can replicate using the companion code to this paper. We describe our long-term vision for GWCLOUD
Reading the tea leaves in the Mbh–M*,sph and Mbh–Re,sph diagrams: dry and gaseous mergers with remnant angular momentum
No full textWe recently revealed that bulges and elliptical galaxies broadly define distinct, superlinear relations in the (black hole mass, M-bh)-(spheroid stellar mass, M-*,M-sph) diagram or M-bh-M-*,M-sph diagram, with the order-of-magnitude lower M-bh/M-*,M-sph ratios in the elliptical galaxies due to major (disc-destroying, elliptical-building) dry mergers. Here, we present a more nuanced picture. Galaxy mergers, in which the net orbital angular momentum does not cancel, can lead to systems with a rotating disc. This situation can occur with either wet (gas-rich) mergers involving one or two spiral galaxies, e.g. NGC 5128, or dry (relatively gas-poor) collisions involving one or two lenticular galaxies, e.g. NGC 5813. The spheroid and disc masses of the progenitor galaxies and merger remnant dictate the shift in the M-bh-M-*,M-sph and M-bh-R-e,R-sph diagrams. We show how this explains the (previously excluded merger remnant) Sersic S0 galaxies near the bottom of the elliptical sequence and core-Sersic S0 galaxies at the top of the bulge sequence, neither of which are faded spiral galaxies. Different evolutionary pathways in the scaling diagrams are discussed. We also introduce two ellicular (ES) galaxy types, explore the location of brightest cluster galaxies and stripped 'compact elliptical' galaxies in the M-bh-M-*,M-sph diagram, and present a new merger-built M-bh-M-*,M-sph relation which may prove helpful for studies of nanohertz gravitational waves. This work effectively brings into the fold many systems previously considered outliers with either overly massive or undermassive black holes relative to the near-linear M-bh-M-*,M-sph 'red sequence' patched together with select bulges and elliptical galaxies
Metal Halide Perovskite Alloy: Fundamental, Optoelectronic Properties and Applications
No full textMetal halide perovskites (MHPs) have demonstrated great advances for photovoltaic and optoelectronic applications. However, owing to the presence of the synergy from lattice strain, defects of MHPs, and environment, MHPs suffer from phase transitions and degradation, resulting in the restriction of their practical applications and further commercialization. Multiple metal elements can coexist in MHPs to form alloys due to the high tolerance of lattice and the composition replaceability, which provides a novel strategy for improvement of performance and stability. In this review, the recent advances of alloy engineering of MHPs, focusing on the cation and the metal ion (A- and B-site) alloy strategies, are reviewed. The alloy effects on the crystalline structure, optoelectronic properties, ferroelectricity, carrier dynamics, and stability of perovskites are interpreted. Finally, the prospect of this study is the challenges in the MHPs alloy engineering
Crowdshipping with Dynamic Workers Availability – Restless-Bandit-Based Prioritization
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Health literacy strengths and challenges among residents of a resource-poor village in rural India: Epidemiological and cluster analyses
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Two-dimensional coherent spectroscopy of trion-polaritons and exciton-polaritons in atomically thin transition metal dichalcogenides
No full textWe present a microscopic many-body calculation of the nonlinear two-dimensional coherent spectroscopy (2DCS) of trion-polaritons and exciton-polaritons in charge-tunable transition-metal-dichalcogenides monolayers placed in an optical microcavity. The charge tunability leads to an electron gas with nonzero density that brings brightness to the trion — a polaron quasiparticle formed by an exciton with a nonzero residue bounded to the electron gas. As a result, a trion-polariton is created under strong light-matter coupling, as observed in the recent experiment by Sidler et al. [Nat. Phys. 13, 255 (2017)]. We analyze in detail the structure of trion-polaritons, by solving an extended Chevy ansatz for the trion quasiparticle wave-function. We confirm that the effective light-matter coupling for trion-polaritons is determined by the residue of the trion quasiparticle. The solution of the full many-body polaron states within Chevy ansatz enables us to microscopically calculate the nonlinear 2DCS spectrum of both trion-polaritons and exciton-polaritons. We predict the existence of three kinds of off-diagonal cross-peaks in the 2DCS spectrum, as an indication of the coherence among the different branches of trion-polaritons and exciton-polaritons. Due to the sensitivity of 2DCS spectrum to quasiparticle interactions, our work provides a good starting point to explore the strong nonlinearity exhibited by trion-polaritons in some recent exciton-polariton experiments
Simulation Techniques for Thin-Walled Circular Tubes
No full textFinite element analysis (FEA) is widely used to investigate the crushing performance of thin-walled tubes, and carry out parametric studies. However, simulation results are not always in good agreements with experimental results especially in terms of deformation modes in published literature. In this paper, a systematic FEA study will be conducted to evaluate two main simulation techniques using indentation triggers and buckling modes to introduce imperfections in FEA. Axial compressive tests were first carried out on three types of thin-walled circular tubes with different geometrical parameters. The finite element models were subsequently developed and used to explore the effects of indentation triggers and buckling modes on the deformation modes and force-displacement curves of thin-walled tubes. The influences of indentation depths and indentation positions on the crushing performance were investigated. Similarly, the effects of the order of buckling modes and scale factors on the crushing characteristics were examined as well. It has been found that for thin-walled circular tubes, a suitable simulation technique with indentation triggers or buckling modes can be employed to precisely mimic the deformation mode and corresponding force-displacement curve. This study is expected to provide some practical techniques and insights into the numerical simulation of circular tubes