cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Evolutionary Optimized, Monocrystalline Gold Double Wire Gratings as a SERS Sensing Platform
Creators: name: Sweedan, Amro
name: Pavan, Mariela J.
name: Schatz, Enno
name: Maaß, Henriette
name: Tsega, Ashageru
name: Tzin, Vered
name: Höflich, Katja
name: Mörk, Paul
name: Feichtner, Thorsten
name: Bashouti, Muhammad Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Achieving reliable and quantifiable performance in large-area surface-enhanced Raman spectroscopy (SERS) substrates has long been a formidable challenge. It requires substantial signal enhancement while maintaining a reproducible and uniform response. Conventional SERS substrates are typically made of inhomogeneous materials with random resonator geometries and distributions. As a result, they exhibit several or broadened plasmonic resonances, undesired absorptive losses, and inhomogeneous field enhancement. These limitations diminish the signal strength and hamper reproducibility, making it difficult to conduct comparative studies with high sensitivity. In this study, we propose an approach that utilizes monocrystalline gold flakes to fabricate well-defined gratings composed of plasmonic double-wire resonators, which are fabricated through focused ion-beam lithography. The geometry of the double wire grating substrate (DWGS) was evolutionary optimized to achieve efficient enhancement for both excitation and emission processes. The use of monocrystalline material minimizes absorption losses while enhancing the shape fidelity during the nanofabrication process. The DWGS shows notable reproducibility (RSD=6.6%), repeatability (RSD=5.6%), and large-area homogeneity over areas $>10^4\,μ$m$^2$. Moreover, it provides a SERS enhancement factor of $\approx 10^6$ for 4-Aminothiophenol (4-ATP) analyte and detection capability for sub-monolayer coverage. The DWGS demonstrates reusability, as well as long-term stability on the shelf. Experimental validation with various analytes, in different states of matter, including biological macromolecules, confirms the sensitive and reproducible nature of DWGSs, thereby establishing them as a promising SERS substrate design for future sensing applications.
description: 22 pages, 6 Figures, 12 pages Supplementary
OPEUS D3.2 - Baseline simulation results and assessment
Creators: name: Partner-UROS
Publisher: name: Zenodo
Year: 2019

description: The work presented in this current deliverable DO3.2 has been carried out in the framework of the collaboration agreement between OPEUS and the S2R Members project FINE1 (Grant agreement No. 730818). The main objective of this deliverable is to elaborate energy-baseline simulation results for the pre-defined reference scenarios. These baseline simulation results were calculated with the OPEUS-tool, which was developed within OPEUS WP2. The baseline scenarios, including the environmental conditions, the track data as well as the implemented train parameters are defined within the OPEUS deliverable D3.1 “Baseline scenario set up” and the FINE1 deliverable D3.1 “Energy baseline”. This current report summarises the simulation results for the defined reference scenarios and gives a short assessment of the resulting energy consumptions.
Resiliency of the western Chesapeake Bay to total suspended solid concentrations following storms and accounting for land-cover
Creators: name: Hasan, M.
name: Benninger, L.
Publisher: name: Academic Press
Year: 2017

description: The effect of storms on water quality in the Chesapeake Bay has been studied in a patchwork fashion at various sites for short periods of time. In this paper, we use a relationship between MODIS-Terra red light reflectance and total suspended solid (TSS) concentrations in order to develop a fourteen-year time period of TSS estimates during which effects of storms and land cover can be studied over a large portion of the Bay. Exponential fits were most appropriate, resulting in viable reflectance-TSS relationships for the five major Western Shore rivers and the Mainstem of the Bay. Other tributaries were less well-disposed for such relationships due to lack of a large range of TSS concentrations, shallow river beds, or low number of data points. Treating the entire Chesapeake as a single entity and modeling a single reflectance-TSS relationship for the entire estuary produced poorer models with less significance compared to treating each channel separately. Over 2800 rain events were studied in the Lower Western Shore between 2000 and 2014. We found some evidence that higher rainfall amounts correspond to a lower distribution of TSS concentrations 1 day following the event in forested watersheds. At rainfall events of <50 mm, maximum TSS within one day of the storm was highly variable, suggesting that rainfall amounts alone cannot explain variation in TSS levels. Finally, we found value in the use of prediction intervals around TSS estimates, a statistical procedure uncommonly used heretofore with satellite-based estimates but which can help to determine if results are significant or not.
(501359) Harriet Mary [Grantoff]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
7Be and 210Pb total deposition fluxes at New Haven, Connecticut and at Bermuda.
Creators: name: Benninger, L.K.
name: Dion, E.P.
name: Turekian, K.K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1983

description: The 210Pb flux has remained virtually constant at New Haven from 1973 to 1978, the flux in the 1977-1978 period being 1.2 dpm/cm2/y. The 210Pb flux at Bermuda is 0.69 dpm/cm2/y. This lower flux than expected from model calculations is due to the establishment of a blocking high pressure cell during the summer which deflects continental air. The 7Be fluxes at New Haven and Bermuda are 22.7 and 17.1 dpm/cm2/y, values consistent with western North Atlantic oceanic standing crop measurements, but higher than some other estimates.
Bidirectional microwave-optical transduction based on integration of high-overtone bulk acoustic resonators and photonic circuits
Creators: name: Blésin, Terence
name: Kao, Wil
name: Siddharth, Anat
name: Wang, Rui N.
name: Attanasio, Alaina
name: Tian, Hao
name: Bhave, Sunil A.
name: Kippenberg, Tobias J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Coherent interconversion between microwave and optical frequencies can serve as both classical and quantum interfaces for computing, communication, and sensing. Here, we present a compact microwave-optical transducer based on monolithic integration of piezoelectric actuators atop silicon nitride photonic circuits. Such an actuator directly couples microwave signals to a high-overtone bulk acoustic resonator defined by the suspended silica cladding of the optical waveguide core, which leads to enhanced electromechanical and optomechanical couplings. At room temperature, this triply resonant piezo-optomechanical transducer achieves an off-chip photon number conversion efficiency of -48 dB over a bandwidth of 25 MHz at an input pump power of 21 dBm. The approach is scalable in manufacturing and, unlike existing electro-optic transducers, does not rely on superconducting resonators. As the transduction process is bidirectional, we further demonstrate synthesis of microwave pulses from a purely optical input. Combined with the capability of leveraging multiple acoustic modes for transduction, the present platform offers prospects for building frequency-multiplexed qubit interconnects and for microwave photonics at large.
(501358) Bernard Augustus Grantoff
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Go Green For Good White Paper
Creators: name: Gannon, Matthew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: Workers all over the country are leaving their jobs at rates never seen before due to burnout, lack of flexibility and training, job design, value misalignment, and even toxic workplaces, among others. The pandemic has provided an opportunity for many employees to contemplate the meaning of work and what qualities in a company are important to them. Organizations need to understand this phenomenon and tap into the minds of their employees to see what they value today.  Green culture is a relatively new and unstudied concept in academic literature. However, companies across the United States have recently begun implementing sustainability and environmental aspects into their organizational culture. Therefore, it is important that the concept and its potential applications are better understood by business leaders and academic scholars. Through in-depth interviews with 11 employees from a leading aluminum packaging company, this study provides insights into key perceived and experienced aspects of green culture and the influence green culture has on employee commitment. Results of the study are discussed and compiled into a white paper and LinkedIn Learning style video for companies to utilize in efforts to reduce turnover and attract the best talent.
Causal and stable first-order chiral hydrodynamics
Creators: name: Abboud, Nick
name: Speranza, Enrico
name: Noronha, Jorge
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We derive the set of inequalities that is necessary and sufficient for nonlinear causality and linear stability of first-order relativistic hydrodynamics with either a $U(1)_V$ conserved current or a $U(1)_A$ current with a chiral anomaly or both. Our results apply to generic hydrodynamic frames in which no relations among the transport parameters are imposed. Furthermore, our analysis yields, to the best of our knowledge, the first theory of viscous chiral hydrodynamics proven to be causal and stable. We find that causality demands the absence of vorticity-induced heat flux, forcing a departure from the thermodynamic frame in the chiral case. The inequalities for causality and stability define a hypervolume in the space of transport parameters, wherein each point corresponds to a consistent formulation. Notably, causality is determined by just three combinations of transport parameters. We present our results in a form amenable to numerical hydrodynamic simulations.
description: 21 pages, 1 figure. Version accepted for publication in Physical Review D
IAWAS WAAM Literature review
Creators: name: Eimer, Eloise
name: Jialuo Ding
Publisher: name: Zenodo
Year: 2019
Subjects: Aluminium lithium alloys
WAAM
Additive Manufacturing

description: In the framework of the CleanSky project IAWAS, this report has been issued in order to support the deliverable "D1.1 – Suitable new aluminium alloys for wire manufacturing" aiming to define the specification for the new wire to be manufactured for Laser Beam Welding (LBW) and Wire Arc Additive Manufacturing (WAAM) applications. This literature review focuses on the Wire Arc Additive Manufacture of aluminium component and the potential challenges of aluminium lithium alloys for WAAM.
Globally strictly convex cost functional for an inverse parabolic problem
Creators: name: Klibanov, Michael V.
name: Kamburg, Vladimir G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A coefficient inverse problem for a parabolic equation is considered. Using a Carleman Weight Function, a globally strictly convex cost functional is constructed for this problem.
(501357) Maria Wilhelmina Despard Grantoff
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
An impossibility result for Markov Chain Monte Carlo sampling from micro-canonical bipartite graph ensembles
Creators: name: Preti, Giulia
name: Morales, Gianmarco De Francisci
name: Riondato, Matteo
Publisher: name: arXiv
Year: 2023
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Markov Chain Monte Carlo (MCMC) algorithms are commonly used to sample from graph ensembles. Two graphs are neighbors in the state space if one can be obtained from the other with only a few modifications, e.g., edge rewirings. For many common ensembles, e.g., those preserving the degree sequences of bipartite graphs, rewiring operations involving two edges are sufficient to create a fully-connected state space, and they can be performed efficiently. We show that, for ensembles of bipartite graphs with fixed degree sequences and number of butterflies (k2,2 bi-cliques), there is no universal constant c such that a rewiring of at most c edges at every step is sufficient for any such ensemble to be fully connected. Our proof relies on an explicit construction of a family of pairs of graphs with the same degree sequences and number of butterflies, with each pair indexed by a natural c, and such that any sequence of rewiring operations transforming one graph into the other must include at least one rewiring operation involving at least c edges. Whether rewiring these many edges is sufficient to guarantee the full connectivity of the state space of any such ensemble remains an open question. Our result implies the impossibility of developing efficient, graph-agnostic, MCMC algorithms for these ensembles, as the necessity to rewire an impractically large number of edges may hinder taking a step on the state space.
description: Accepted for publication in Physical Review E
Sea-ing Change: Leveraging Narrative Persuasion in Environmental Filmmaking to Prompt Pro-Environmental Behavior (powerpoint)
Creators: name: Revere, Claire
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2022

description: The extinction of experience - loss of connection to- and care for- the natural world - is a profound issue today. There are many studies that correlate the loss of human-nature connection (HNC) with impacts to individuals' attitudes, beliefs, and behaviors toward the environment. Film media provides a promising avenue for reinvigorating HNC and encouraging pro-environmental behaviors (PEB). It is a promising communications modality in part due to the strategic mechanisms of narrative persuasion that can be leveraged through film; including minimization of resistance, development of empathy, and promotion of self-efficacy beliefs. This non-traditional thesis project explores how environmental filmmakers leverage strategic techniques to increase pro-environmental behaviors (PEB).
Research-based assessment affordances and constraints: Perceptions of physics faculty
Creators: name: Madsen, Adrian
name: McKagan, Sarah B.
name: Martinuk, Mathew "Sandy"
name: Bell, Alexander
name: Sayre, Eleanor C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: To help faculty use research-based materials in a more significant way, we learn about their perceived needs and desires and use this information to suggest ways for the Physics Education Research community to address these needs. When research-based resources are well aligned with the perceived needs of faculty, faculty members will more readily take them up. We used phenomenographic interviews of ordinary physics faculty and department chairs to identify four families of issues that faculty have around research-based assessments (RBA). First, many faculty are interested in using RBAs but have practical needs around how to do so: how to find them, which ones there are, and how to administer them. They want help addressing these needs. Second, at the same time, many faculty think that RBAs are limited and don't measure many of the things they care about, or aren't applicable in their classes. They want assessments to measure skills, perceptions, and specific concepts. Third, many faculty want to turn to communities of other faculty and experts to help them interpret their assessment results and suggest other ways to do assessment. They want to norm their assessment results by comparing to others and interacting with faculty from other schools to learn about how they do assessment. Fourth, many faculty consider their courses in the broader contexts of accountability and their departments. They want help with assessment in these broader contexts. We also discuss how faculty members role in their department and type of institution influence their perceived wants and needs around assessment.
description: submitted to Physical Review Special Topics - Physics Education Research
An introduction to infinite projected entangled-pair state methods for variational ground state simulations using automatic differentiation
Creators: name: Naumann, Jan
name: Weerda, Erik Lennart
name: Rizzi, Matteo
name: Eisert, Jens
name: Schmoll, Philipp
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Tensor networks capture large classes of ground states of phases of quantum matter faithfully and efficiently. Their manipulation and contraction has remained a challenge over the years, however. For most of the history, ground state simulations of two-dimensional quantum lattice systems using (infinite) projected entangled pair states have relied on what is called a time-evolving block decimation. In recent years, multiple proposals for the variational optimization of the quantum state have been put forward, overcoming accuracy and convergence problems of previously known methods. The incorporation of automatic differentiation in tensor networks algorithms has ultimately enabled a new, flexible way for variational simulation of ground states and excited states. In this work we review the state-of-the-art of the variational iPEPS framework, providing a detailed introduction to automatic differentiation, a description of a general foundation into which various two-dimensional lattices can be conveniently incorporated, and demonstrative benchmarking results.
Quantomatic: A Proof Assistant for Diagrammatic Reasoning
Creators: name: Kissinger, Aleks
name: Zamdzhiev, Vladimir
Publisher: name: arXiv
Year: 2015
Subjects: subject: Logic in Computer Science (cs.LO)
subject: Mathematical Software (cs.MS)
subject: Category Theory (math.CT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Monoidal algebraic structures consist of operations that can have multiple outputs as well as multiple inputs, which have applications in many areas including categorical algebra, programming language semantics, representation theory, algebraic quantum information, and quantum groups. String diagrams provide a convenient graphical syntax for reasoning formally about such structures, while avoiding many of the technical challenges of a term-based approach. Quantomatic is a tool that supports the (semi-)automatic construction of equational proofs using string diagrams. We briefly outline the theoretical basis of Quantomatic's rewriting engine, then give an overview of the core features and architecture and give a simple example project that computes normal forms for commutative bialgebras.
description: International Conference on Automated Deduction, CADE 2015 (CADE-25). The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-21401-6_22
Heavy neutrinos and the $pp\to lljj$ CMS data
Creators: name: Gluza, J.
name: Jelinski, T.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the excess in the $pp \to ee jj$ CMS data can be naturally interpreted within the Minimal Left Right Symmetric model (MLRSM), keeping $g_L = g_R$, if CP phases and non-degenerate masses of heavy neutrinos are taken into account. As an additional benefit, a natural interpretation of the reported ratio (14:1) of the opposite-sign (OS) $pp\to l^\pm l^\mp jj$ to the same-sign (SS) $pp\to l^\pm l^\pm jj$ lepton signals is possible. Finally, a suppression of muon pairs with respect to electron pairs in the $pp \to lljj$ data is obtained, in accordance with experimental data. If the excess in the CMS data survives in the future, it would be a first clear hint towards presence of heavy neutrinos in right-handed charged currents with specific CP phases, mixing angles and masses, which will have far reaching consequences for particle physics directions.
description: 8 pages, 7 figures. v2: minor changes, refs added, typos corrected, version accepted for publication in PLB
(501356) _____ ? [Faithfull]
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(501355) Henry Faithfull
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
การศึกษาพฤติกรรมของนักเรียนที่มีความต้องการพิเศษของโรงเรียนประถมสาธิต มหาวิทยาลัยมหาสารคาม ปีการศึกษา 2549
Creators: name: จตุพร เพ็งชัย
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2008
Subjects: Attention Deficit Hyperactivity Disorder
Autism
Learning Disability
เด็กที่มีความบกพร่องทางการเรียนรู้
เด็กสมาธิสั้น
เด็กออทิสติก

description: วารสารพัฒนาการเรียนการสอน, 2, 1, 27-37
Two bounds on the noncommuting graph
Creators: name: Nardulli, Stefano
name: Russo, Francesco G.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Combinatorics (math.CO)
subject: Differential Geometry (math.DG)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 05C22, 20D15, 58E35, 53C23

description: Erdős introduced the noncommuting graph, in order to study the number of commuting elements in a finite group. Despite the use of combinatorial ideas, his methods involved several techniques of classical analysis. The interest for this graph is becoming relevant in the last years for various reasons. Here we deal with a numerical aspect, showing for the first time an isoperimetric inequality and an analytic condition in terms of Sobolev inequalities. This last result holds in the more general context of weighted locally finite graphs.
description: Submitted
Magnetic Resonance Detection of Gas Microbubbles via HyperCEST: A Path Toward Dual Modality Contrast Agent
Creators: name: Durham, P.G.
name: McHugh, C.T.
name: Branca, R.T.
name: Kelley, M.
name: Dayton, P.A.
Publisher: name: John Wiley and Sons Inc
Year: 2021

description: Gas microbubbles are an established clinical ultrasound contrast agent. They could also become a powerful magnetic resonance (MR) intravascular contrast agent, but their low susceptibility-induced contrast requires high circulating concentrations or the addition of exogenous paramagnetic nanoparticles for MR detection. In order to detect clinical in vivo concentrations of raw microbubbles via MR, an alternative detection scheme must be used. HyperCEST is an NMR technique capable of indirectly detecting signals from very dilute molecules (concentrations well below the NMR detection threshold) that exchange hyperpolarized 129Xe. Here, we use quantitative hyperCEST to show that microbubbles are very efficient hyperCEST agents. They can accommodate and saturate millions of 129Xe atoms at a time, allowing for their indirect detection at concentrations as low as 10 femtomolar. The increased MR sensitivity to microbubbles achieved via hyperCEST can bridge the gap for microbubbles to become a dual modality contrast agent.
ชุดการเรียนสื่ออิเล็กทรอนิกส์รายวิชาฟิสิกส์ 2 เรื่อง คลื่น เสียงและแสง
Creators: name: ปรียา อนุพงษ์องอาจ
Publisher: name: ศูนย์สนับสนุนและพัฒนาการเรียนการสอน มหาวิทยาลัยรังสิต
Year: 2008
Subjects: E-Learning for Physics 2 : Waves, Sound and Light
ชุดการเรียนสื่ออิเล็กทรอนิกส์รายวิชาฟิสิกส์ 2 เรื่อง คลื่น เสียงและแสง

description: วารสารพัฒนาการเรียนการสอน, 2, 1, 38-52
The Influence of Morphology on the Charge Transport in Two-Phase Disordered Organic Systems
Creators: name: Woellner, Cristiano F.
name: Machado, Leonardo D.
name: Autreto, Pedro A. S.
name: Freire, Jose A.
name: Galvao, Douglas S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work we use a three-dimensional Pauli master equation to investigate the charge carrier mobility of a two-phase system, which can mimic donor-acceptor and amorphous- crystalline bulk heterojunctions. Our approach can be separated into two parts: the morphology generation and the charge transport modeling in the generated blend. The morphology part is based on a Monte Carlo simulation of binary mixtures (donor/acceptor). The second part is carried out by numerically solving the steady-state Pauli master equation. By taking the energetic disorder of each phase, their energy offset and domain morphology into consideration, we show that the carrier mobility can have a significant different behavior when compared to a one-phase system. When the energy offset is non-zero, we show that the mobility electric field dependence switches from negative to positive at a threshold field proportional to the energy offset. Additionally, the influence of morphology, through the domain size and the interfacial roughness parameters, on the transport was also investigated.
description: Submitted to 2014 Fall MRS Symposia Proceedings
The All Sky Automated Survey. The Catalog of Bright Variable Stars in the I-band, South of Declination +28
Creators: name: Sitek, Monika
name: Pojmanski, Grzegorz
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper presents the results of our extensive search for the bright variable stars in approximately 30000 square degrees of the south sky in the I-band data collected by 9 deg x 9 deg camera of the All Sky Automated Survey between 2002 and 2009. Lists of over 27000 variable stars brighter than 9 mag at maximum light, with amplitudes ranging from 0.02 mag to 7 mag and variability time-scales from hours to years, as well as corresponding light curves are provided. Automated classification algorithm based on stellar properties (period, Fourier coefficients, 2MASS J, H, K, colors, ASAS V-band data) was used to roughly classify objects. Despite low spatial resolution of the ASAS data (~15 arcs) we cross-identified all objects with other available data sources. Coordinates of the most probable 2MASS counterparts are provided. 27705 stars brighter than I=9 mag were found to be variable, of which 7842 objects were detected to be variable for the first time. Brief statistics and discussion of the presented data is provided. All the photometric data is available over the Internet at http://www.astrouw.edu.pl/~gp/asas/AsasBrightI.html
description: 9 pages, 9 figures
Spectral lens enables a minimalist framework for hyperspectral imaging
Creators: name: Zhou, Zhou
name: Zhang, Yiheng
name: Xie, Yingxin
name: Huang, Tian
name: Li, Zile
name: Chen, Peng
name: Lu, Yanqing
name: Yu, Shaohua
name: Zhang, Shuang
name: Zheng, Guoxing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Conventional lens-based imaging techniques have long been limited to capturing only the intensity distribution of objects, resulting in the loss of other crucial dimensions such as spectral data. Here, we report a spectral lens that captures both spatial and spectral information, and further demonstrate a minimalist framework wherein hyperspectral imaging can be readily achieved by replacing lenses in standard cameras with our spectral lens. As a paradigm, we capitalize on planar liquid crystal optics to implement the proposed framework. Our experiments with various targets show that the resulting hyperspectral camera exhibits excellent performance in both spectral and spatial domains. With merits such as ultra-compactness and strong compatibility, our framework paves a practical pathway for advancing hyperspectral imaging apparatus toward miniaturization, with great potential for portable applications.
(501354) Reginald Faithfull Faithfull
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Theoretical models of spin-exchange optical pumping: Revisited and reconciled
Creators: name: Kelley, M.
name: Branca, R.T.
Publisher: name: American Institute of Physics Inc.
Year: 2021

description: Theoretical models for continuous-flow and stopped-flow spin-exchange optical pumping of 129Xe have long predicted much higher 129Xe polarization values than are measured experimentally, leading to a search for additional depolarization mechanisms. In this work, we show that a misapplication of the general theory of spin-exchange optical pumping along with the incorrect use of previously measured spin-exchange constants has been perpetuated in the past 20 years and is the main cause of the long-held discrepancy between theoretical and experimental 129Xe polarization values. Following the standard theory of spin-exchange optical pumping developed almost 40 years ago by Happer et al., we outline the common mistake made in the application of this theory in modern theoretical models and derive a simplified expression of the spin-exchange cross section that can be used to correctly predict 129Xe polarization values under any set of experimental conditions. We show that the complete expression of the spin-exchange cross section derived using the work of Happer et al. predicts spin-exchange rates tenfold higher than those previously assumed in theoretical models of continuous-flow and stopped-flow spin-exchange optical pumping and can fully rectify the long-standing discrepancy between theoretical and experimental polarization values.
Consistency Conditions for an AdS/MERA Correspondence
Creators: name: Bao, Ning
name: Cao, ChunJun
name: Carroll, Sean M.
name: Chatwin-Davies, Aidan
name: Hunter-Jones, Nicholas
name: Pollack, Jason
name: Remmen, Grant N.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Multi-scale Entanglement Renormalization Ansatz (MERA) is a tensor network that provides an efficient way of variationally estimating the ground state of a critical quantum system. The network geometry resembles a discretization of spatial slices of an AdS spacetime and "geodesics" in the MERA reproduce the Ryu-Takayanagi formula for the entanglement entropy of a boundary region in terms of bulk properties. It has therefore been suggested that there could be an AdS/MERA correspondence, relating states in the Hilbert space of the boundary quantum system to ones defined on the bulk lattice. Here we investigate this proposal and derive necessary conditions for it to apply, using geometric features and entropy inequalities that we expect to hold in the bulk. We show that, perhaps unsurprisingly, the MERA lattice can only describe physics on length scales larger than the AdS radius. Further, using the covariant entropy bound in the bulk, we show that there are no conventional MERA parameters that completely reproduce bulk physics even on super-AdS scales. We suggest modifications or generalizations of this kind of tensor network that may be able to provide a more robust correspondence.
description: 38 pages, 9 figures
(501353) Edward Herbert Faithfull
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
(501352) Mary Faithfull
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Ward identity preserving approach for investigation of phonon spectrum with self-energy and vertex corrections
Creators: name: Pandey, Sudhakar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We propose an approach for investigating the many body effects on phonon spectrum in an electron-phonon coupled system by taking into account the electron self-energy and vertex corrections which respect the Ward identity representing the conservation of electronic charge. Our approach provides a systematic diagrammatic expansion of the phonon self-energy $Π(\mathbf{q},ω)$ in powers of the electron-phonon scattering strength $(g^2)$.
 In this approach the many body corrections to phonon spectrum vanish identically in the regime of long-wavelength excitations ($\mathbf{q} \rightarrow 0$) due to an exact cancellation between the contributions arising from electron self-energy and vertex corrections. Our results demonstrate that the contributions of electron self-energy and vertex corrections are not only comparable but they also tend to cancel each oher so that the phonon spectrum remains nearly unaffected due to many body effects in the regime of long-wavelength excitations ($\mathbf{q} \rightarrow 0$)
description: 7 pages, 5 figures
OPEUS D6.1 - Innovative technologies outlook update
Creators: name: Partner-SAFT
Publisher: name: Zenodo
Year: 2017

description: The WP6.1 of OPEUS project studies the critical innovative technologies for diesel hybrid rail vehicles. The deliverable consists of 2 chapters. The first chapter focuses on the state of the art of the innovative technologies for railway application such as DLC, Li-ion battery. The second chapter is aim to describe the characterization and identification of key parameters of ESS high performance batteries model.
Large strain micromechanics of thermoplastic elastomers with random microstructures
Creators: name: Cho, Hansohl
name: Lee, Jaehee
name: Moon, Jehoon
name: Pöselt, Elmar
name: Veld, Pieter J. in 't
name: Rutledge, Gregory C.
name: Boyce, Mary C.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Thermoplastic polyurethanes (TPU) are block copolymeric materials composed of plastomeric "hard" and elastomeric "soft" domains, by which they exhibit highly resilient yet dissipative large deformation features depending on volume fractions and microstructures of the two distinct domains. Here, we develop a new methodology to address the microscopic deformation mechanisms in TPU materials with highly disordered microstructures. We propose new micromechanical models for randomly dispersed (or occluded) as well as randomly continuous hard domains, each within a continuous soft structure as widely found in representative TPU materials over a wide range of volume fractions, v$_{\mathrm{hard}}$ = 26.9% to 52.2%. The micromechanical modeling results are compared to experimental data on the macroscopic large strain behaviors reported previously (Cho et al. 2017). We explore the role of the dispersed vs. continuous nature of the geometric features of the random microstructures on shape recovery and energy dissipation at the microstructural level in this important class of phase-separated copolymeric materials.
(501076) Reginald Conduit Riley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
survex: an R package for explaining machine learning survival models
Creators: name: Spytek, Mikołaj
name: Krzyziński, Mateusz
name: Langbein, Sophie Hanna
name: Baniecki, Hubert
name: Wright, Marvin N.
name: Biecek, Przemysław
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Due to their flexibility and superior performance, machine learning models frequently complement and outperform traditional statistical survival models. However, their widespread adoption is hindered by a lack of user-friendly tools to explain their internal operations and prediction rationales. To tackle this issue, we introduce the survex R package, which provides a cohesive framework for explaining any survival model by applying explainable artificial intelligence techniques. The capabilities of the proposed software encompass understanding and diagnosing survival models, which can lead to their improvement. By revealing insights into the decision-making process, such as variable effects and importances, survex enables the assessment of model reliability and the detection of biases. Thus, transparency and responsibility may be promoted in sensitive areas, such as biomedical research and healthcare applications.
Comparison of single breath hyperpolarized 129Xe MRI with dynamic 19F MRI in cystic fibrosis lung disease
Creators: name: Ceppe, A.S.
name: Branca, R.T.
name: Chung, S.H.
name: Powell, M.Z.
name: McCallister, A.
name: Lee, Y.Z.
name: Donaldson, S.H.
name: Antonacci, M.
name: Goralski, J.L.
Publisher: name: John Wiley and Sons Inc
Year: 2021

description: Purpose: To quantitatively compare dynamic 19F and single breath hyperpolarized 129Xe MRI for the detection of ventilation abnormalities in subjects with mild cystic fibrosis (CF) lung disease. Methods: Ten participants with stable CF and a baseline FEV1 > 70% completed a single imaging session where dynamic 19F and single breath 129Xe lung ventilation images were acquired on a 3T MRI scanner. Ventilation defect percentages (VDP) values between 19F early-breath, 19F maximum-ventilation, 129Xe low-resolution, and 129Xe high-resolution images were compared. Dynamic 19F images were used to determine gas wash-in/out rates in regions of ventilation congruency and mismatch between 129Xe and 19F. Results: VDP values from high-resolution 129Xe images were greater than from low-resolution images (P =.001), although these values were significantly correlated (r = 0.68, P =.03). Early-breath 19F VDP and max-vent 19F VDP also showed significant correlation (r = 0.75, P =.012), with early-breath 19F VDP values being significantly greater (P <.001). No correlation in VDP values were detected between either 19F method or high-res 129Xe images. In addition, the location and volume of ventilation defects were often different when comparing 129Xe and 19F images from the same subject. Areas of ventilation congruence displayed the expected ventilation kinetics, while areas of ventilation mismatch displayed abnormally slow gas wash-in and wash-out. Conclusion: In CF subjects, ventilation abnormalities are identified by both 19F and HP 129Xe imaging. However, these ventilation abnormalities are not entirely congruent. 19F and HP 129Xe imaging provide complementary information that enable differentiation of normally ventilated, slowly ventilated, and non-ventilated regions in the lungs.
(501075) Walter Alfred Riley
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
On Rotated CMV Operators and Orthogonal Polynomials on the Unit Circle
Creators: name: Ang, Ryan C. H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: Primary 42C05, 47A68, 47B36, Secondary 81P45

description: Split-step quantum walk operators can be expressed as a generalised version of CMV operators with complex transmission coefficients, which we call rotated CMV operators. Following the idea of Cantero, Moral and Velazquez's original construction of the original CMV operators from the theory of orthogonal polynomials on the unit circle (OPUC), we show that rotated CMV operators can be constructed similarly via a rotated version of OPUCs with respect to the same measure, and admit an analogous LM-factorisation as the original CMV operators. We also develop the rotated second kind polynomials corresponding to the rotated OPUCs. We then use the LM-factorisation of rotated alternate CMV operators to compute the Gesztesy-Zinchenko transfer matrices for rotated CMV operators.
description: 39 pages, 4 tables. Revised and accepted by Journal of Difference Equations and Applications