bluuebunny/crossref_metadata_2025_split huggingface dataset:
Iterative Uncertainty Calibration for Modeling Metal Additive Manufacturing Processes Using Statistical Moment-Based Metric
Authors: Rahmani Dehaghani M. , Tang Yifan , Gary Wang G. 
Published: August 2022

Abstract
Metal additive manufacturing (AM) has recently attracted attention due to its potential for batch/mass production of metal parts. This process, however, currently suffers from problems including low productivity, inconsistency in the properties of the printed parts, and defects such as lack of fusion and keyholing. Finite element (FE) modeling cannot accurately model the metal AM process and has a high computational cost. Empirical models based on experiments are time-consuming and expensive. This paper enhances a previously developed framework that takes advantages of both empirical and FE models. The validity and accuracy of the metamodel developed in the earlier framework depend on the initial assumption of parameter uncertainties. This causes a problem when the assumed uncertainties are far from the actual values. The proposed framework introduces an iterative calibration process to overcome this limitation. After comparing several calibration metrics, the second-order statistical moment-based metric (SMM) was chosen as the calibration metric in the improved framework. The framework is then applied to a four-variable porosity modeling problem. The obtained model is more accurate than using other approaches with only ten available experimental data points for calibration and validation.
A Combined Computer Vision and Deep Learning Approach for Rapid Drone-Based Optical Characterization of Parabolic Troughs
Authors: Kesseli Devon , Chidurala Veena , Gooch Ryan , Zhu Guangdong 
Published: August 2022

Abstract
Optical accuracy is a primary driver of parabolic trough concentrating solar power (CSP) plant performance, but can be damaged by wind loads, gravity, error during installation, and regular plant operation. Collecting and analyzing optical measurements over an entire operating parabolic trough plant is difficult, given the large scale of typical installations. Distant Observer, a software tool developed at the National Renewable Energy Laboratory, uses images of the absorber tube reflected in the collector mirror to measure both surface slope in the parabolic mirror and offset of the absorber tube from the ideal focal point. This technology has been adapted for fast data collection using low-cost commercial drones, but until recently still required substantial human labor to process large amounts of data. A new method leveraging advanced deep learning and computer vision tools can drastically reduce the time required to process images. This new method addresses the primary analysis bottleneck, identifying featureless, reflective mirror corner points to a high degree of accuracy. Recent work has shown promising results using computer vision methods. The combined deep learning and computer vision approach presented here proved highly effective and has the potential to further automate data collection and analysis, making the tool more robust. The method presented in this paper automatically identified 74.3% of mirror corners within 2 pixels of their manually marked counterparts and 91.9% within 3 pixels. This level of accuracy is sufficient for practical Distant Observer analysis within a target uncertainty. A commercial drone collected video of over 100 parabolic trough modules at an operating CSP plant to demonstrate the deep learning and computer vision method’s usefulness in processing large amounts of data. These troughs were successfully analyzed using Distant Observer, paired with the new deep learning and computer vision algorithm, and can provide plant operators and trough designers with valuable insight about plant performance, operating strategies, and plant-wide optical error trends.
Flexural Wave Propagation in Rigid Elastic Combined Metabeam
Authors: Bhatt Abhigna , Banerjee Arnab 
Published: August 2022

Abstract
In this paper, flexural wave propagation, attenuation, and reflection through finite number of rigid elastic combined metabeam (RECM) elements sandwiched between two Euler Bernoulli beams has been studied, implementing the spectral element, inverse Fourier transform, and transfer matrix method. Spectral element has been formulated for the unit representative cell of RECM employing the rigid body dynamics. Governing dimensionless parameters are identified. Furthermore, the sensitivity analysis has been carried out to comprehend the influence of non-dimensional parameters, such as mass ratio, length ratio, and rotary inertia ratio on the attenuation profile. Rotary inertia of rigid body produces local resonance (LR) band, which may abridge the gap between the two Bragg scattering (BS) bands and results in an ultra-wide stop band for the specific combination of governing non-dimensional parameters. A total of 164% normalized attenuation band is possible to obtain in RECM. Natural frequencies for the finite RECM have also been evaluated from the global spectral element matrix and observed that some natural frequencies lie in the attenuation band. Therefore, the level of attenuation near that natural frequencies is significantly less and cannot be identified from the dispersion diagram of the infinite RECM.
Fatigue of Shape Memory Alloys With Emphasis on Additively Manufactured NiTi Components
Authors: Cebrian Carcavilla Adriano , Zaki Wael 
Published: August 2022

Abstract
Shape memory alloys (SMAs) are often used in applications involving time-varying loads. Under such conditions, fatigue leading to possible fracture is a paramount cause of failure, which has been extensively investigated since the 1960s. This work reviews developments in this field with emphasis on recent results related to additively manufactured SMAs. Multiple factors influencing structural and functional degradation in presence of cyclic loading are considered, including microstructural and surface features, thermal loading history, and heat treatment. For completeness, select modeling approaches proposed in the literature to predict SMA fatigue are briefly overviewed and a discussion is provided on the statistical relevance and uncertainty of published data. Conclusions are then formulated to guide subsequent research.
On the Extremum Control Problem with Pointwise Observation for a Parabolic Equation
Authors: Astashova I. V. , Lashin D. A. , Filinovskiy A. V. 
Published: August 2022

Abstract
In this paper we consider a control problem with pointwise observation for a one-dimensional parabolic equation which arises in a mathematical model of climate control in industrial greenhouses. We study a general equation with variable diffusion coefficient, convection coefficient, and depletion potential. For the extremum problem of minimizing an integral weighted quadratic cost functional, we establish the existence and uniqueness of a minimizing function. We also study exact controllability and dense controllability of the problem. Necessary conditions for an extremum are obtained, and qualitative properties of the minimizing function are studied.
An Inverse Problem for a Semilinear Wave Equation
Authors: Romanov V. G. 
Published: August 2022

Abstract
For the equation $${{u}_{{tt}}} - \Delta u - f(x,u) = 0, (x,t) \in {{\mathbb{R}}^{4}},$$ where $$f(x,u)$$ is a smooth function of its variables and is compact in x, the inverse problem of recovering this function from given information on solutions of Cauchy problems for the differential equation is studied. Plane waves with a strong front that propagate in a homogeneous medium in the direction of the unit vector ν and then impinge on an inhomogeneity localized inside some ball B(R) are considered. It is supposed that the solutions of the Cauchy problems can be measured on the boundary of this ball for all ν at times close to the arriving time of the front. The forward Cauchy problem is studied, and the existence of a unique bounded solution in a neighborhood of a characteristic wedge is stated. An amplitude formula for the derivative of the solution with respect to t on the front of the wave is derived. It is demonstrated that the solution of the inverse problem reduces to a series of X-ray tomography problems.
Key factors for effective implementation of healthcare worker support interventions after patient safety incidents in health organisations: a protocol for a scoping review
Authors: Guerra-Paiva Sofia , Lobão Maria João , Simões João Diogo , Donato Helena , Carrillo Irene , Mira José Joaquín , Sousa Paulo 
Published: August 2022

IntroductionHealth organisations should support healthcare workers who are physically and psychologically affected by patient safety incidents (second victims). There is a growing body of evidence which focuses on second victim support interventions. However, there is still limited research on the elements necessary to effectively implement and ensure the sustainability of these types of interventions. In this study, we propose to map and frame the key factors which underlie an effective implementation of healthcare worker support interventions in healthcare organisations when healthcare workers are physically and/or emotionally affected by patient safety incidents.Methods and analysisThis scoping review will be guided by the established methodological Arksey and O’Malley framework, Levac and Joanna Briggs Institute (JBI) recommendations. We will follow the JBI three-step process: (1) a preliminary search conducted on two databases; (2) the definition of clear inclusion criteria and the creation of a list of search terms to be used in the subsequent running of the search on a larger number of databases; and (3) additional searches (cross-checking/cross-referencing of reference lists of eligible studies, hand-searching in target journals relevant to the topic, conference proceedings, institutional/organisational websites and networks repositories). We will undertake a comprehensive search strategy in relevant bibliographic databases (PubMed/MEDLINE, Embase, CINHAL, Web of Science, Scopus, PsycInfo, Epistemonikos, Scielo, Cochrane Library and Open Grey). We will use the Mixed Methods Appraisal Tool V.2018 for quality assessment of the eligible studies. Our scoping review will be guided by the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Extension for Scoping Reviews.Ethics and disseminationThis study will not require ethical approval. Results of the scoping review will be published in a peer-review journal, and findings will be presented in scientific conferences as well as in international forums and other relevant dissemination channels.Trial registration number10.17605/OSF.IO/RQAT6.Preprint from medRxiv available: doi:https://doi.org/10.1101/2022.01.25.22269846.
Teleparallel scalar-tensor gravity through cosmological dynamical systems
Authors: Kadam S. A. , Mishra B. , Said Jackson Levi 
Published: August 2022

AbstractScalar-tensor theories offer the prospect of explaining the cosmological evolution of the Universe through an effective description of dark energy as a quantity with a non-trivial evolution. In this work, we investigate this feature of scalar-tensor theories in the teleparallel gravity context. Teleparallel gravity is a novel description of geometric gravity as a torsional- rather than curvature-based quantity which presents a new foundational base for gravity. Our investigation is centered on the impact of a nontrivial input from the kinetic term of the scalar field. We consider a number of model settings in the context of the dynamical system to reveal their evolutionary behavior. We determine the critical points of these systems and discuss their dynamics.
Noncommutative $$D=5$$ Chern–Simons gravity: Kaluza–Klein reduction and chiral gravitational anomaly
Authors: Ɖorđević Dušan , Gočanin Dragoljub 
Published: August 2022

AbstractActions for noncommutative (NC) gauge field theories can be expanded perturbatively in powers of the noncommutativity parameter $$\theta $$
θ
using the Seiberg–Witten map between ordinary classical fields and their NC counterparts. The leading order term represents classical ($$\theta =0$$

θ
=
0

) action while higher-order terms give us $$\theta $$
θ
-dependent NC corrections that ought to capture some aspects of quantum gravity. Building on previous work of Aschieri and Castellani on NC Chern–Simons (CS) gauge and gravity theories, showing that non-trivial $$\theta $$
θ
-dependence exists only for spacetime dimensions $$D\ge 5$$

D
≥
5

, we investigate a correlated effect of these extra spatial dimensions and noncommutativity on four-dimensional physics, up to first-order in $$\theta $$
θ
. Assuming that one spatial dimension is compactified into a circle, we apply the Kaluza–Klein reduction procedure on the NC $$D=5$$

D
=
5

CS theory for the conformal gauge group SO(4, 2), to obtain an effective, $$\theta $$
θ
-dependent four-dimensional theory of gravity that has Einstein–Hilbert gravity with negative cosmological constant as its commutative limit. We derive field equations for this modified theory of gravity and study the effect of NC interactions on some classical geometries, such as the AdS-Schwarzschild black hole. We find that this NC background spacetime gives rise to chiral gravitational anomaly due to the nonvanishing $$\theta $$
θ
-dependent Pontryagin density.
Small mammals and microhabitat selection in forest fragments in the transition zone between Atlantic Forest and Pampa biome
Authors: Skupien Fabrício Luiz , Rodrigues Daniele Pereira , Sausen Jady de Oliveira , Gonçalves Gislene Lopes , Lima Daniela Oliveira de 
Published: August 2022

Natural resources are depleted in fragmented landscapes that have their vegetation also altered. As a result, the microhabitat diversity and the composition and distribution of local species are affected. In this study, we evaluated the small mammals' community diversity, composition and microhabitat selection in two Atlantic Forest fragments, in an ecotone area with the Pampa biome, southern Brazil. We recorded five rodents (Akodon montensis, Oligoryzomys nigripes, Sooretamys angouya, Juliomys pictipes and the exotic Rattus rattus) and one marsupial (Didelphis albiventris). Both fragments were dominated by the generalist rodent A. montensis. Akodon montensis and O. nigripes showed similar habitat preferences: ground covered by rocks and higher values of vegetation obstruction. Sooretamys angouya preferred places with higher abundance of trees. Fruit availability was important for A. montensis and D. albiventris, highlighting the importance of this food resource for local wildlife, and the potential role of these species as seed predators and dispersers. Small species richness, the presence of an exotic species and high dominance level suggest that the study area is highly degraded.
Trame lyrique et surconscience politique dans la poésie afrodescendante: une lecture de "Voix nègres, voix rebelles, voix fraternelles", de Jean Métellus
Authors: Njoya Yaya Mountapmbeme Pemi 
Published: August 2022

Le XXe siècle a été une période charnière des luttes d'émancipation du peuple africain et de ses diasporas disséminés à travers le monde. Des mouvements contre le racisme systémique aux États-Unis à la lutte contre l'Apartheid en Afrique du Sud, en passant par les revendications d'indépendance dans les anciennes colonies, les écrivains se sont retrouvés au premier plan pour porter le désir d’auto-détermination et de légitimation de l’Africain dans l’espace du monde. Ce contexte a permis l'érection dans l'espace dominant des voix subalternes qui font écho d'un contre discours de l'ordre établi. L’œuvre poétique de Jean Métellus dans la lignée de la poésie africaine hagiographique pose la problématique de la célébration et de la sacralisation des héros/hérauts dans l’espace africain continental et diasporique. Elle fait assumer à la poésie une fonction sociale et politique au sens aristotélicien du terme. Ainsi, au-delà de l’art de la parole qu’est la poésie, l’acte poétique devient, sous la plume du poète haïtien, un acte de résilience et d’agentivité. Dans cette réflexion, à travers la problématique de la célébration des figures héroïques dans l’espace géographique des Suds, rappelle la condition du sujet africain à des moments clés de l'histoire des luttes des peuples dominés en mettant en exergue les figures du militantisme panafricain. Cette réflexion s’inscrit dans l’approche phénoménologique de la littérature qui fait surgir le regard iconoclaste du poète sur le monde des divinités consacrées parfois par l’entremise du viol de l’imaginaire des peuples colonisés. Le développement s’est fait à partir des dimensions subjective, et référentielle à travers une lecture décoloniale.
Exil, diaspora et migrations dans "En attendant la montée des eaux", de Maryse Condé
Authors: Berg Mathilde 
Published: August 2022

Roman choral à l’intérieur duquel s’effectuent de nombreux allers-retours entre passé et présent, En attendant la montée des eaux de Maryse Condé raconte le destin de trois hommes – Babakar, Fouad et Movar – en errance, unis par une petite orpheline haïtienne qu’ils souhaitent ramener sur la terre de ses ancêtres. Dans ce roman, certains personnages émigrent d’Afrique pour la Guadeloupe puis Haïti, d’autres quittent Haïti pour la Guadeloupe et y retournent, en quête certes d’une vie meilleure, mais aussi pour fuir leur passé ou au contraire renouer avec leurs origines. L’écriture, la narration chorale et le propos tendent à construire un roman sur l’errance dans lequel se perdre signifie aussi chercher, et trouver.
Il s’agira dans cet article de démontrer que l’errance est nécessaire, dans le roman, à la découverte de l’identité et à la quête de soi. Nous analyserons pour ce faire l’errance à laquelle sont confrontés les personnages, et qui leur est intrinsèque, leur quête identitaire à la fois personnelle et collective et la désignation d’Haïti comme terre d’adoption et d’ancrage.
Feasibility of Blood Pressure Measurement With a Wearable (Watch‐Type) Monitor During Impending Syncopal Episodes
Authors: Groppelli Antonella , Rafanelli Martina , Testa Giuseppe Dario , Agusto Samuele , Rivasi Giulia , Ungar Andrea , Carbone Erika , Soranna Davide , Zambon Antonella , Brignole Michele , Parati Gianfranco 
Published: August 2022

Background
We assessed the reliability and feasibility of blood pressure (BP) measurements by means of a new wearable watch‐type BP monitor (HeartGuide) in detecting episodes of hypotensive (pre)syncope induced by tilt table test.

Methods and Results

An intrapatient comparison between systolic BP (SBP) measured by means of the HeartGuide device and noninvasive finger beat‐to‐beat BP monitoring was undertaken both at baseline in supine position and repeatedly during tilt table test in patients evaluated for reflex syncope. Intrapatient fall of systolic BP from baseline was measured. Eighty‐one patients (mean age, 61±19 years; 46 women) were included. Overall, HeartGuide was able to yield BP values at the time of BP nadir in 58 (72%) patients (average HeartGuide SBP 102±18 mm Hg, versus finger SBP 101±19 mm Hg). Compared with baseline, the maximum SBP decrease was on average −28.5±27.8 and −30.3±33.9 mm Hg respectively (Lin's concordance correlation coefficient=0.78,
r
=0.79,
P
=0.001). In the subgroup of 38 patients with tilt table test induced (pre)syncope, the average HeartGuide SBP during symptoms was 97±16 mm Hg, and the finger SBP was 94±18 mm Hg. Compared with baseline, the maximum SBP decrease was on average −35.2±29.3 and −43.3±31.8 mm Hg, respectively (Lin's concordance correlation coefficient=0.83,
r
=0.87,
P
=0.001).

Conclusions
Our data indicate that the HeartGuide BP monitor can detect low BP during presyncope and that its measure of SBP change is consistent with that simultaneously obtained through continuous BP monitoring, despite some intrapatient variability. Thus, this device might be useful in determining the hypotensive nature of spontaneous (pre)syncopal symptoms, a possibility that should be verified by field studies.
International Environmental Law: of Sovereignty, Complexity, and Grotian Moments
Authors: Brunnée Jutta 
Published: August 2022

Abstract
The Grotian Moment concept provides a lens through which to reflect on the enduring hold of state sovereignty on international environmental law. The article traces the development of the field’s customary rule framework and canvasses efforts to push its conceptual boundaries beyond the inter-state paradigm. Given their dominant role in the field, the article then provides a brief overview of treaty-based approaches to the development of international environmental law. It focuses on the global response to the climate emergency, as illustrative of how international environmental law has evolved in response to the challenges posed by complex crises. The article concludes by suggesting that international environmental law is unlikely to see a Grotian Moment at the level of customary international law, but that it does hold potential for the new thinking and new approaches that could produce a ‘quasi’ Grotian Moment.
Hugo Grotius’s De iure belli ac pacis: a Report on the Worldwide Census of the First Edition (1625)
Authors: Corredera Edward Jones , Iurlaro Francesca , Muschel Lara , Somos Mark 
Published: August 2022

Abstract
This article provides new information on the publication history of the first edition of the text that, according to many scholars, laid the ground for the growth of international law: Hugo Grotius’s De iure belli ac pacis. Drawing on the preliminary findings of the Grotius Census Project at the Max Planck Institute for Comparative Public Law and International Law, funded by the German Research Foundation (Deutsche Forschungsgemeinschaft), the following pages shed light on the first three states of the typescript, the sources that Grotius had access to in France while drafting the book, and the early circulation of the 1625 edition, published by Nicolas Buon in Paris. The goal of this publication is to disseminate updated information on the printing history of this key text in the history of legal and political thought, and to invite readers to come forward with more information about the location of the remaining copies of the text, in order to advance our understanding of the rise of international law around the world.
Hugo Grotius’s De iure belli ac pacis: a Report on the Worldwide Census of the Third Edition (1631)
Authors: Corredera Edward Jones , Muschel Lara , Somos Mark 
Published: August 2022

Abstract
Hugo Grotius’s best-known work, De iure belli ac pacis, appeared in 1625 in Paris with the author’s approval. A second unauthorised version was published in 1626 in Frankfurt. In 1631 the Amsterdam publisher, Willem Janszoon Blaeu (1571–1638), issued the third edition, this one authorised by the author – and this edition featured nearly a thousand revisions by Grotius. The purpose of this report is to analyse the context behind the publication of this third edition and the copies’ provenance records. Using online and card catalogues, we have located 154 copies. We examined 52 copies in person, and another three fully digitised copies online. We hope that this research note on preliminary results will generate greater interest in this unduly neglected edition, and that readers will kindly bring further copies to our attention.