bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nonlinear effects in single-particle photothermal imaging
Authors: West Claire A. , Lee Stephen A. , Shooter Jesse , Searles Emily K. , Goldwyn Harrison J. , Willets Katherine A. , Link Stephan , Masiello David J. 
Published: December 2022

Although photothermal imaging was originally designed to detect individual molecules that do not emit or small nanoparticles that do not scatter, the technique is now being applied to image and spectroscopically characterize larger and more sophisticated nanoparticle structures that scatter light strongly. Extending photothermal measurements into this regime, however, requires revisiting fundamental assumptions made in the interpretation of the signal. Herein, we present a theoretical analysis of the wavelength-resolved photothermal image and its extension to the large particle scattering regime, where we find the photothermal signal to inherit a nonlinear dependence upon pump intensity, together with a contraction of the full-width-at-half-maximum of its point spread function. We further analyze theoretically the extent to which photothermal spectra can be interpreted as an absorption spectrum measure, with deviations between the two becoming more prominent with increasing pump intensities. Companion experiments on individual 10, 20, and 100 nm radius gold nanoparticles evidence the predicted nonlinear pump power dependence and image contraction, verifying the theory and demonstrating new aspects of photothermal imaging relevant to a broader class of targets.
Habitat element associations in the bird fauna of an Australian farmland landscape
Authors: Murphy Michael J. , Scarff Fiona R. 
Published: December 2022

Context The decline of birds in farmland is of global concern. Aims The aim of this paper was to provide a local-scale case study of the bird fauna of temperate inland eastern Australia’s sheep–wheat belt. Methods Relationships between species occurrence and various habitat elements in the landscape were examined in a 342 km2 area of agricultural countryside near Wagga Wagga in southern inland New South Wales, Australia. The pre-agricultural bird fauna of this area was also investigated by collating records from previous studies of nearby larger woodland remnants. Key results The study identified a bird fauna of 115 species compared to 160 species known from nearby woodland remnants. Significant relationships were found with the presence of farm dams, extent of local woodland cover and roadside woodland at the levels of individual species, guilds and total fauna. A small ephemeral wetland also contributed substantially to waterbird diversity. Conclusion Twenty commonly recorded species typical of the farmland matrix and 15 species considered at particular risk of local extinction were identified. At the guild level, frugivore/granivores, small insectivores and hollow-users were found to be associated with remaining woodland elements in the agricultural landscape. Implications Ecologically sustainable management of agricultural areas is essential to avoid further local extinctions. Hollow-using species are expected to be particularly affected by the anticipated widespread loss of trees in the landscape over the next century.
Relationships between building features and wildfire damage in California, USA and Pedrógão Grande, Portugal
Authors: Dossi Simona , Messerschmidt Birgitte , Ribeiro Luís Mário , Almeida Miguel , Rein Guillermo 
Published: December 2022

Background Buildings in communities near wildlands, in the wildland–urban interface (WUI), can experience wildfire damage. Aims To quantitatively assess the relationship between building features and damage, a building wildfire resistance index is developed and validated with the 2013–2017 CAL FIRE (DINS) database from California, USA, and the 2017 Pedrógão Grande Fire Complex post-fire investigation from Portugal. Methods Three statistical dependence tests are compared to evaluate the relationship between selected building features and damage. The Wildfire Resistance Index (WRI), range: [–1, 1], is proposed and validated as a rating for building wildfire susceptibility. Key results The most correlated features to wildfire damage are the presence of vent screens and deck materials in California, and exterior walls material and deck materials in Portugal. For Portugal, as WRI increases by 50%, linear regression estimates a 48% decrease in proportion of highly damaged buildings, and a 42% increase in proportion of low damage buildings (R2 of 0.93 and 0.90, respectively). A total of 65% of California buildings with WRI = 1 were destroyed, compared to average 85% for WRI ≥−0.33. Conclusions The WRI quantifies the wildfire damage experienced by buildings in two diverse WUI regions. Implications The WRI could be used as an estimator of wildfire damage but it needs further development.
Modelling polysemy and categorial ambiguity in a constructional family
Authors: Azimdokht Zoleikha , Rafiei Adel , Audring Jenny 
Published: December 2022

AbstractIn this paper we analyse a family of compound constructions in Persian that show two interesting properties: (1) they split into two semantic patterns, human agent noun and instrument noun, and (2) they display categorial ambiguity between noun and adjective. The compounds in question, which are formed with the verbal stem -yāb‘find’, are collected from diachronic and synchronic corpora and analysed in the framework of Construction Morphology (Booij 2010). We argue that the instrumental pattern is an innovation under the influence of loan-translated English instrument nouns. This pattern dovetailed with a much older morphological construction for human agent nouns. This raises questions about the relation between the two constructions in the contemporary speaker’s lexicon. For the dual functionality of the words as nouns and adjectives, we argue that it can be understood as a second order schema (Booij & Masini 2015) or sister construction (Jackendoff & Audring 2019,2020), whereby no precedence is ascribed to either of the two patterns.
3D TiO2 nanotube arrays with anatase-rutile phase junction and oxygen vacancies for promoted photoelectrochemical water splitting
Authors: Meng Ming , Li Chunyang , Li Jitao , Wu Juan , Feng Yamin , Sun Lingling , Yuan Honglei , Liu Kuili 
Published: December 2022

Abstract
Constructing TiO2 phase junction with visible light response, effective separation and transfer of photogenerated charges is desperately needed for photoelectrochemical water splitting. Herein, 3D-TiO2 nanotubes arrays-based phase junction consisted of anatase core and rutile shell as well as oxygen vacancies are successfully fabricated via a new one-step annealing method in Ar atmosphere. The synergistic effect of phase junction and oxygen vacancies not only boosts the separation of photogenerated charges, but also enhances the utilization efficiency of the incident, reflected and/or refracted visible light captured by the 3D configuration. Moreover, the oxygen vacancies can act as electron donors, which could effectively improve the electrical conductivity, and hence further accelerate the separation and transfer of photogenerated charges. Benefiting from these advantages, the optimized 3D-TiO2 NTAs-based phase junction display a maximal photocurrent density of 1.5 mA cm−2 at 0.22 V vs. Ag/AgCl with Faradic efficiency of 100%, which is approximately 1.9 folds higher than that of pure anatase 3D-TiO2 NTAs. The technique and strategy could also be extended to other application of TiO2 NTAs such as solar cells and photocatalysis.
Mechanical properties characterization of 2D materials via pressure bulge testing
Authors: Cao Guoxin , An Fei 
Published: December 2022

Abstract
Pressure bulge testing is one of the standard techniques for characterizing the mechanical properties of thin films, whereas it is far less often used to characterize the mechanical properties of 2D materials. In the present work, the effectiveness of bulge testing on determining the mechanical properties of 2D materials is systematically investigated using numerical analysis. After assuming 2D materials as continuum thin films, we start by simulating the relationship between the pressure difference across the suspended film and the film deflection, and then fit the results with analytical models to extract the elastic modulus of the film. It should be noted that the clamped, pre-stretched film widely assumed in the existing analytical model is not appropriate for atomically thin materials; instead, freestanding 2D materials are actually slack in bulge testing due to the delamination of their adhesive boundary condition. Therefore, the initially unstressed flat films, pre-stretched films and slack films are investigated in the present work, and the Poisson’s ratio effect is considered to investigate the effectiveness of bulge testing for most 2D materials. It is found that bulge testing can be an effective approach to characterize the mechanical properties of 2D materials.
Polar magnetism and chemical bond in α-RuCl3
Authors: Lovesey S W 
Published: December 2022

AbstractThe micaceous black allotrope of ruthenium trichloride is the subject of many recent experimental and theoretical studies. Even so, its structural and magnetic properties remain undecided; monoclinic, trigonal and rhombohedral space groups for the crystal structure have been proposed on the basis of various types of experiments. The magnetic structure is often discussed in the context of the Kitaev state, but inevitably they are inconclusive discussions in the absence of structural and magnetic space groups. Johnsonet alinfer a candidate for the magnetic structure (Cc2/m) from results gathered in an extensive set of experiments on an untwined sample ofα-RuCl3(Johnsonet al2015Phys. Rev.B92235119). The proposed zigzag antiferromagnetic ground state of Ru ions does not respond to bulk magnetic probes, with optical rotation and all forms of dichroism prohibited by symmetry. Experimental techniques exploited by Johnsonet alincluded x-ray and magnetic neutron diffraction. Properties of the candidate magnetic structure not previously explored include polar magnetism that supports Ru Dirac multipoles, e.g. a ruthenium anapole that is also known as a toroidal dipole. In a general case, Dirac dipoles are capable of generating interactions between magnetic ions, as in an electrical Dzyaloshinskii–Moryia interaction (Kaplan and Mahanti 2011Phys. Rev.B83174432; Zhaoet al2021Nat. Mater.20341). Notably, the existence of Dirac quadrupoles in the pseudo-gap phases of cuprate superconductors YBCO and Hg1201 account for observed magnetic Bragg diffraction patterns. Dirac multipoles contribute to the diffraction of both x-rays and neutrons, and a stringent test of the magnetic structure Cc2/m awaits future experiments. From symmetry-informed calculations we show that, the magnetic candidate permits Bragg spots that arise solely from Dirac multipoles. Stringent tests of Cc2/m can also be accomplished by performing resonant x-ray diffraction with signal enhancement from the chlorineK-edge. X-ray absorption spectra published forα-RuCl3possess a significant low-energy feature (Plumbet al2014Phys. Rev.B90041112(R)). Many experimental studies of other Cl-metal compounds concluded that identical features hallmark the chemical bond. Using a monoclinic Cc2/m structure, we predict the contribution to Bragg diffraction at the ClK-edge absorption. Specifically, the variation of intensity of Bragg spots with rotation of the sample about the reflection vector. The two principal topics of our studies, polar magnetism and the chemical bond in the black allotrope of ruthenium trichloride, are brought together in a minimal model of magnetic Ru ions in Cc2/m.
Electrical and thermal transport through

α−T3

NIS junction
Authors: Islam Mijanur , Kapri Priyadarshini 
Published: December 2022

Abstract
We investigate the electrical and thermal transport properties of the

α
−

T
3

based normal metal–insulator–superconductor (NIS) junction using Blonder–Tinkham–Klapwijk theory. We show that the tunneling conductance of the NIS junction is an oscillatory function of the effective barrier potential (χ) of the insulating region up to a thin barrier limit. The periodicity and the amplitudes of the oscillations largely depend on the values of α and the gate voltage of the superconducting region, namely, U
0. Further, the periodicity of the oscillation changes from π to

π

/

2

as we increase U
0. To assess the thermoelectric performance of such a junction, we have computed the Seebeck coefficient, the thermoelectric figure of merit, maximum power output, efficiency at the maximum output power of the system, and the thermoelectric cooling of the NIS junction as a self-cooling device. Our results on the thermoelectric cooling indicate practical realizability and usefulness for using our system as efficient cooling detectors, sensors, etc and hence could be crucial to the experimental success of the thermoelectric applications of such junction devices. Furthermore, for an

α
−

T
3

lattice, whose limiting cases denote a graphene or a dice lattice, it is interesting to ascertain which one is more suitable as a thermoelectric device and the answer seems to depend on the U
0. We observe that for an

α
−

T
3

lattice corresponding to

U
0

=
0

, graphene (α = 0) is more feasible for constructing a thermoelectric device, whereas for

U
0

≫

E

F

, the dice lattice (α = 1) has a larger utility.
Filtering effects on involute gear form measurement
Authors: Reavie Tom , Frazer R C , Shaw Brian 
Published: December 2022

Abstract
Traditional gear measurement results are used to classify a gear tolerance grade in accordance with ISO 1328-1:2013 but as more stringent requirements are placed on gear performance it is important to also characterise performance related features properly on the gear flank surface. However, the measurement uncertainty of the measurement machines is not improving at the same rate as the tolerance requirements, and it is not uncommon to have less than 10 μm tolerances to be measured with a 1–3 μm measurement uncertainty capability. This breaks the ‘rule of thumb’ that the uncertainty should be smaller than one tenth of the value you are trying to measure. It is therefore important to review the measurement and evaluation process to identify if there are any areas for improvement within our current methods. Additionally, the measurements are being used to refine gear tooth contact analysis performance models and the development of optical and high speed tactile scanning measurement methods is allowing the full 3D gear flank surface measurement a feasible option on the shop floor. Greater understanding of the involute flank beyond the standard evaluation limits is thus required. These additional requirements have prompted this review of the effect that the Gaussian filters specified in ISO 1328-1:2013 have and that their characteristics are fully understood by those who must perform and interpret the measurement results. This paper examines the effect that these filters have on measurements where micro geometry corrections, such as tip relief, or tooth tip and end face chamfers are present. Methods of minimising these effects are reviewed with specific reference to strategies defined in ISO 16610-28:2016. Recommendations are offered to minimise the effects when evaluating the gear tolerance class and quantifying gear flank micro geometry.
Polygonal gold nanocrystal induced efficient phase transition in 2D-MoS2 for enhancing photo-electrocatalytic hydrogen generation
Authors: Das Santanu , Sharma Uttam , Mukherjee Bratindranath , Sasikala Devi Assa Aravindh , Velusamy Jayaramakrishnan 
Published: December 2022

Abstract
Plasmonic nanocrystals (NCs) assisted phase transition of two-dimensional molybdenum disulfide (2D-MoS2) unlashes numerous opportunities in the fields of energy harvesting via electrocatalysis and photoelectrocatalysis by enhancing electronic conductivity, increasing catalytic active sites, lowering Gibbs free energy for hydrogen adsorption and desorption, etc. Here, we report the synthesis of faceted gold pentagonal bi-pyramidal (Au-PBP) nanocrystals (NC) for efficient plasmon-induced phase transition (from 2 H to 1 T phase) in chemical vapor deposited 2D-MoS2. The as-developed Au-PBP NC with the increased number of corners and edges showed an enhanced multi-modal plasmonic effect under light irradiations. The overpotential of hydrogen evolution reaction (HER) was reduced by 61 mV, whereas the Tafel slope decreased by 23.7 mV/dec on photoexcitation of the Au-PBP@MoS2 hybrid catalyst. The enhanced performance can be attributed to the light-induced 2H to 1 T phase transition of 2D-MoS2, increased active sites, reduced Gibbs free energy, efficient charge separation, change in surface potential, and improved electrical conductivity of 2D-MoS2 film. From density functional theory (DFT) calculations, we obtain a significant change in the electronic properties of 2D-MoS2 (i.e. work function, surface chemical potential, and the density of states), which was primarily due to the plasmonic interactions and exchange-interactions between the Au-PBP nanocrystals and monolayer 2D-MoS2, thereby enhancing the phase transition and improving the surface properties. This work would lay out finding assorted routes to explore more complex nanocrystals-based multipolar plasmonic NC to escalate the HER activity of 2D-MoS2 and other 2D transition metal dichalcogenides.
Learning biophysics with open simulations
Authors: Kiemeneij Wilbert , de Putter Lesley , Koopman Maaike 
Published: December 2022

Abstract
Physics education in secondary schools can include biophysics topics as electives. An open simulation based on a simulation like Minecraft for learning the workings of the action potential in human cells was designed and tested for students in upper secondary physics education. In small design and test cycles both the simulation engine and the classroom materials were developed. The simulation shows realistic results that go beyond the accompanying textbook. The finished prototype of the engine and the materials were used to study student reasoning during their simulation of the action potential. Results show that students reason together about what they see in the simulation to come to theories on the action potential process, showing profound learning. The students did not master the more open inquiry final assignment.
Investigate the physics of instant noodles in a hot cup using Arduino temperature sensors
Authors: Prasitpong Singha , Phayphung Wissarut , Rakkapao Suttida 
Published: December 2022

Abstract
The study explores the physics of cooking instant noodles in a hot cup using low-cost Arduino sensors developed as a thermocouple and an infrared thermometer. By pouring room temperature water onto a bag of calcium oxide (CaO) contained in the outside cup of the noodles, the exothermic reaction of CaO generates. Its energy is released into the water of the outside cup. This cooks the noodles, which are put into an inside cup. The amount of heat transferred to the water is measured. Moreover, the change in the temperature of the hot cooked noodles with time is investigated using Newton’s law of cooling. The experiment using the Arduino temperature sensors encourages undergraduate students to learn thermodynamics concepts from the instant noodles in a hot cup, primarily found in groceries.
Next generation high resolution perovskite direct conversion detector: Monte Carlo design optimisation and virtual clinical trial
Authors: O’Connell J , Kundu S , Saidaminov M , Bazalova-Carter M 
Published: December 2022

Abstract
We implement virtual clinical integration of next-generation perovskite detectors into common x-ray imaging devices. This was achieved by performing Monte Carlo (MC) optimisation of the design and benchmarking of low cost, high spatial resolution, direct conversion perovskite crystal x-ray flat panel imagers for a next generation of breast-, MV-, and kV-cone beam CT detectors. Semiconductor methylammonium lead bromide perovskite crystals energy deposition efficiencies calculated in TOPAS were benchmarked against four common detector materials for twelve detector crystal thicknesses between 40 to 15 mm and ten beam energies ranging from 20 keV to 6 MeV. Based on these simulations, Koning's dedicated breast CT, and Varian's Truebeam kV- and MV-cone beam CT systems were designated as suitable applications for perovskite detectors. System specific Fastcat hybrid MC cone beam CT image simulation was subsequently used to optimise the perovskite detector design and conduct virtual clinical trials. Device-specific optimal perovskite crystal thicknesses were calculated to be 0.30, 0.86, and 1.99 mm for Koning breast CT and Truebeam kV- and MV-cone beam CT systems, respectively. Replacing the current detectors on these machines with low cost perovskite crystal detectors could be advantageous as it would simultaneously yield 12.1%, 9.5% and 86.1% improvements in detective quantum efficiency as well as increases in contrast to noise ratio in brain, lung, and bone tissues.
Mutual interferences between SIAT aPET insert and a 3 T uMR 790 MRI scanner
Authors: Sang Ziru , Kuang Zhonghua , Wang Xiaohui , Ren Ning , Wu San , Niu Ming , Cong Longhan , Liu Zheng , Hu Zhanli , Sun Tao , Liang Dong , Liu Xin , Zheng Hairong , Li Ye , Yang Yongfeng 
Published: December 2022

Abstract

Objective. Dual-modality small animal PET/MR imaging provides temporally correlated information on two biochemical processes of a living object. An magnetic resonance imaging (MRI)-compatible small animal PET insert named Shenzhen Institutes of Advanced Technology (SIAT) aPET was developed by using dual-ended readout depth encoding detectors to simultaneously achieve a uniform high spatial resolution and high sensitivity at the SIAT. In this work, the mutual interferences between SIAT aPET and the 3 T uMR 790 MRI scanner of United Imaging was quantitatively evaluated. Approach. To minimize the mutual interferences, only the PET detectors and the readout electronics were placed inside the MRI scanner, the major signal processing electronic was placed in the corner of the MRI room and the auxiliary unit was placed in the MRI technical room. A dedicated mouse radio fRequency (RF) coil with a transmitter and receiver was developed for the PET insert. The effects of PET scanner on the B
0 and B
1 field of the MRI scanner and the quality of the MRI images were measured. The effects of MRI imaging on the performance of both the PET detectors and scanner were also measured. Main results. The electronic and mechanical components of the PET insert affected the homogeneity of the B
0 field. The PET insert had no effect on the homogeneity of B
1 produced by the dedicated mouse coil but slightly reduced the strength of B
1. The mean and standard deviation of the RF noise map were increased by 2.2% and 11.6%, respectively, while the PET insert was placed in the MRI scanner and powered on. Eddy current was produced while the PET insert was placed in the MRI scanner, and it was further increased while the PET insert was powered on. Despite the above-mentioned interferences from the PET insert, the MR images of a uniform cylindrical water phantom showed that the changes in the signal-to-noise ratio (SNR) and homogeneity as the PET insert was placed in the MRI scanner were acceptable regardless of whether the PET insert was powered off or powered on. The maximum reduction of SNR was less than 11%, and the maximum reduction of homogeneity was less than 2.5% while the PET insert was placed inside the MRI scanner and powered on for five commonly used MRI sequences. MRI using gradient echo (GRE), spin echo (SE) and fast spin echo (FSE) sequences had negligible effects on the flood histograms and energy resolution of the PET detectors, as well as the spatial resolution and sensitivity of the PET scanner. Significance. The mutual interference between the SIAT aPET and the 3 T uMR 790 MRI scanner are acceptable. Simultaneous PET/MRI imaging of small animals can be performed with the two scanners.