cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Building Marginal Pattern Library With Unbiased Training Dataset for Enhancing Model-Free Load-ED Mapping
Creators: Qiwei Zhang
Fangxing Li
Wei Feng
Xiaofei Wang
Linquan Bai
and Rui Bo
Publisher: name: IEEE
Year: 2022

This work identifies that a randomly generated dataset is biased for economic dispatch output prediction, even when the dataset capacity is large, and proposes three algorithms to construct a marginal pattern library and examine the dataset.
Input-output mapping for a given power system problem, such as loads versus economic dispatch (ED) results, has been demonstrated to be learnable through artificial intelligence (AI) techniques, including neural networks. However, the process of identifying and constructing a comprehensive dataset for the training of such input-output mapping remains a challenge to be solved. Conventionally, load samples are generated by a pre-defined distribution, and then ED is solved based on those load samples to form training datasets, but this paper demonstrates that such dataset generation is biased regarding load-ED mapping. The marginal unit and line congestion (i.e., marginal pattern) exhibit a unique characteristic called "step change" in which the marginal pattern changes when the load goes from one critical loading level (CLL) to another, and there is no change of marginal units within the interval of the two adjacent CLLs. Those loading intervals differ significantly in size. The randomly generated training dataset overfills intervals with large sizes and underfits intervals with small sizes, so it is biased. In this paper, three algorithms are proposed to construct a marginal pattern library to examine this bias according to different computational needs, and an enhancement algorithm is proposed to eliminate the bias in the load-ED training dataset generation. Three illustrative test cases demonstrate the proposed algorithms, and comparative studies are constructed to show the superiority of the enhanced, unbiased training dataset.
Experimental Investigation of Inter-Phase Power Management in Residential Microgrids
Creators: Syed A. Raza and Jin Jiang
Publisher: name: IEEE
Year: 2022

This paper explains construction of an experimental test system to demonstrate the inter-phase power transfer using a back-to-back converter.
With increased installation of single-phase rooftop PV systems, in-house battery storages, and high-power plug-in loads (i.e. EVs) at single-phase residential sites, it is prevalent that more and more distribution systems are becoming severely unbalanced causing power quality problems and thermal risks at distribution substations. To solve this problem, two main strategies have been developed previously by the authors, known as intra- and inter-phase power management strategies. The latter makes use of interconnecting back-to-back converters between the phases to mitigate the phase imbalance caused by the various single-phase DG units and loads. This paper devotes laboratory evaluation of the developed schemes and demonstrate key features experimentally on inter-phase power management. Two main experiments have been carried out to confirm that the developed technique can use the surplus power capacity from one phase to support the load demand in another phase to achieve dynamic power balance. From the point view of the substation transformer, the three-phases will always appear to be balanced despite the fact that different phases can have very different local generation and load profiles.
Accurate singlet-triplet gaps in biradicals via the spin averaged anti-Hermitian contracted Schrödinger equation
Creators: name: Boyn, Jan-Niklas
name: Mazziotti, David A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The accurate description of biradical systems, and in particular the resolution of their singlet-triplet gaps, has long posed a major challenge to the development of electronic structure theories. Biradicaloid singlet ground states are often marked by strong correlation and, hence, may not be accurately treated by mainstream, single-reference methods such as density functional theory or coupled cluster theory. The anti-Hermitian contracted Schrödinger equation (ACSE), whose fundamental quantity is the two-electron reduced density matrix rather than the N-electron wave function, has previously been shown to account for both dynamic and strong correlations when seeded with a strongly correlated guess from a complete active space (CAS) calculation. Here, we develop a spin-averaged implementation of the ACSE, allowing it to treat higher multiplicity states from the CAS input without additional state preparation. We apply the spin-averaged ACSE to calculate the singlet-triplet gaps in a set of small main group biradicaloids, as well as the organic four-electron biradicals trimethylenemethane and cyclobutadiene, and naphthalene, benchmarking the results against other state-of-the-art methods reported in the literature.
Slides for - Fractional Programming for Communication Systems
Creators: Dr. Kaiming Shen
Publisher: name: IEEE
Year: 2022

Webinar Slides - SPS Webinar, March 25, 2022, Dr. Kaiming Shen
In this talk, we discuss a new transform technique for solving fractional programming (FP), i.e., a family of optimization problems with ratio terms. The classic FP techniques such as the Charnes-Cooper andÿDinkelbach?sÿmethods typically deal with a single ratio, and in general, do not work for multiple ratios. This talk will introduce the recent progress in developing FP for multiple ratios and matrix ratios, along with a broad range of applications in communications and signal processing, including energy efficiency enhancement, channel estimation, power control, beamforming, and user scheduling. Furthermore, this talk will discuss the connections of FP to the minorization-maximization, the fixed-point iteration, and the weighted minimum mean-square error algorithm.
A nilpotent quotient algorithm for L-presented groups
Creators: name: Eick, Bettina
name: Hartung, René
name: Bartholdi, Laurent
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F05; 68Q40

description: The main part of this paper contains a description of a nilpotent quotient algorithm for L-presented groups and a report on applications of its implementation in the computer algebra system GAP. The appendix introduces two new infinite series of L-presented groups. Apart from being of interest in their own right, these new L-presented groups serve as examples for applications of the nilpotent quotient algorithm.
First ESR Detection of Higgs Amplitude Mode and Analysis with Extended Spin-Wave Theory in Dimer System KCuCl$_3$
Creators: name: Matsumoto, Masashige
name: Sakurai, Takahiro
name: Hirao, Yuki
name: Ohta, Hitoshi
name: Uwatoko, Yoshiya
name: Tanaka, Hidekazu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: KCuCl$_3$ is known to show a quantum phase transition from the disordered to antiferromagnetically ordered phases by applying pressure. There is a longitudinal excitation mode (Higgs amplitude mode) in the vicinity of the quantum critical point in the ordered phase. To detect the Higgs amplitude mode, high-pressure ESR measurements are performed in KCuCl$_3$. The experimental data are analyzed by the extended spin-wave theory on the basis of the vector spin chirality. We report the first ESR detection of the Higgs amplitude mode and the important role of the electric dipole described by the vector spin chirality.
description: 24 pages, 12 figures
Additional file 1 of The costs of inappropriate referral pathways in inpatient care for three major noncommunicable diseases in Mongolia: a national registry-based analysis
Creators: name: Tuvdendorj, Ariuntuya
name: Dechinkhorloo, Otgonjargal
name: Dorjsuren, Bayarsaikhan
name: Buskens, Erik
name: Feenstra, Talitha
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Supplementary file. Figure S2 Cost per bed-day by types of hospital and years for COPD, in int$ 2016–2018. Figure S3 Cost per bed-day by types of hospital and years for IHD, in int$ 2016–2018. Table S1 Overview of hospital funding mechanisms and share of funding sources. Table S2 Cost weight used to calculate case-based inpatient costs by DRGs. Table S3 Distribution of admissions according to the hospital types and according to diagnosis by year. Table S4 Mean costs per bed-day across different hospital types, in INT$ 2016–2018. Table S5 Characteristics of patients by type of diagnosis, inpatient data 2016–2018. Table S6 Patient referral pathways by diagnosis and year. Table S7 Patient characteristics associated with inpatient costs by age groups, (int$) in 2018. Table S8 Generalized liner model for COPD patients. Table S9 Generalized linear model for stroke patients. Table S10 Generalized linear model for IHD patients.
The impact of the law of the sea convention on vessel-source pollution enforcement in the exclusive economic zone
Creators: name: Sarpong, George Agyemang
Publisher: name: University of British Columbia
Year: 2010

description: The enforcement of vessel-source pollution, a problem of significant global dimensions, had been left entirely to flag-state competence outside the territorial seas. This was an unsatisfactory arrangement, since coastal states who were often most affected by such pollution had no means of enforcement, but had to resort to flag states who were often unwilling or even unable to do so. The Convention on the Law of the Sea provides, in addition, coastal and port-state enforcement and prescribes the use of the I MO standards as the basis of enforcement. Since the main burden of enforcement action should occur before the vessel commits a violation of pollution standards, much emphasis is still placed on flag-state enforcement under the Convention. It is this idea, and in particular, the right of pre-emption accorded flag-states that has raised doubts about the efficacy of the enforcement regime under the Convention. It has been said that the UNCLOS III scheme of enforcement is unlikely to be effective given the poor record of flag state enforcement in the past. A contrary view is presented in this study in relation to enforcement in the Exclusive Economic Zone. It is argued that the tripartite scheme of flag, port, and coastal - state enforcement contains sufficient checks and balances to ensure a viable and effective system of enforcement. Furthermore, states that ratify the Convention would have to ensure conformity of their legislation with the Convention's texts. This would lead to uniformity and consistency in national legislation, thus enhancing states' cooperation in the war against vessel-source pollution. To illustrate this point, the study examines Canadian vessel-source legislation in the light of the Convention on the Law of the Sea.
The Energy-momentum of a Poisson structure
Creators: name: Buric, M.
name: Madore, J.
name: Zoupanos, G.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Consider the quasi-commutative approximation to a noncommutative geometry. It is shown that there is a natural map from the resulting Poisson structure to the Riemann curvature of a metric. This map is applied to the study of high-frequency gravitational radiation. In classical gravity in the WKB approximation there are two results of interest, a dispersion relation and a conservation law. Both of these results can be extended to the noncommutative case, with the difference that they result from a cocycle condition on the high-frequency contribution to the Poisson structure, not from the field equations.
description: 22 pages
title: Studies on selectively fluorinated cycloalkanes
Creators: name: Fang, Zeguo
Publisher: name: University of St Andrews
Year: 2020

description: The thesis focuses on the synthesis of novel fluorinated cycloalkanes and their polar properties. Chapter 2 describes the synthesis of all cis-1,2,3,4-tetrafluorocyclopentane and its deuterated isotopomer. They were prepared from the dicyclopentadiene. The structure of cis-1,2,3,4-tetrafluorocyclopentane was characterised by NMR and X-ray crystallography. This structure proved to have high polarity and a calculated dipole moment is 4.9 Debye. The deuterated isotopomer was also characterised by NMR and it indicated that this molecule has highly polarized faces similar to all cis-1,2,3,4-tetrafluorocyclopentane. The polarity of the isotopomers were compared by GC-MS analysis and this gave an indication that per-deuterated isotopomer is more polar than the all cis-1,2,3,4-tetrafluorocyclopentane. Chapter 3 describes the synthesis of a series of fluorinated cyclopropanes, with a particular focus on the preparation of the all cis-1,2,3-trifluorocyclopropane motif. The synthesis started from the fluorinated styrene, followed by bromofluocarbene (:CFBr) addition and reductive debromination. This provided the first synthetic access to this motif. The lipophilicity (Log P) of a series of fluorinated cyclopropanes was investigated and the results demonstrated that the all cis-1,2,3-trifluorocyclopropane was the most polar compound among this series. Chapter 4 describes unexpected results from the fluorination of benzo[a,e]cyclooctatetraene with NBS, HF·Py and AgF(I), which was anticipated to generate all-cis-5,6,11,12-tetrafluoro-5,6,11,12-tetrahydrodibenzo[a,e]cyclooctane. However, the reaction gave a mixture of products and the product outcomes strongly suggests that an extensive carbocation/phenonium rearrangements pathway occurred during the reaction. The origin of oxygen in the final ether products was shown by an 18O isotope labelling experiment with water and the result suggests a {Ag}O- species is the most likely oxygen provider. Chapter 5 describes the synthesis of a series of novel liquid crystals with fluorinated cyclopropane motifs at their terminus. The synthesis proved straightforward such that these novel liquid crystal candidates can be prepared on scale. Their thermodynamic and physical properties, such as birefringence (Δn), dielectric anisotropy (Δε) and rotational viscosity (ϒ) were analysed by Merck & Co. Although none of the liquid crystal candidates met all the criteria for Liquid Crystal Display (LCD) development, the study gives an insight into the potential for fluorinated cyclopropane motifs in liquid crystals.
April - Smart Grid Business Modeling
Creators: Satish Saini
Tazrin Jahan Priyanka
Gaetano Zizzo
Biagio Dipietra
Rossano Musca
and Mauro Galluzzo
Adel El-Shahat
Bassam Alhanahi
Iftekhar Ahmad
Daryoush Habibi
and Asma Aziz
Publisher: name: IEEE
Year: 2022

Bulletin
An issue of the Smart Grid Bulletin featuring "DS Automation, Achievements and Case Studies: US DOE SGIG Program," "Indigenous Solar Farm: A Journey Toward Carbon-Free Microgrid," "How Smart Grids can support Renewable Energy Communities in small islands," "Sustainable E-mobility Transportation Feasibility Study for Integrated Solar Roads with Wireless Charging and Applicability of Vortex Bladeless for Smart Grids Community," and "Charging Challenges and Solutions for Commercial Electric Vehicles"
Empirically modelling household vulnerability and food security across a southern African land system
Creators: name: Stevens, Forrest R.
name: Gaughan, A. E.
name: Salerno, J.
name: Pricope, N. G.
name: Cassidy, L.
name: Bailey, K.
name: Hartter, J. H.
name: Drake, M.
name: Weaver, A.
name: Kolarik, N.
name: Maseka, H.
name: Mosimane, A.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: People reliant on agropastoral land systems are vulnerable to variability and changes in land function. Their vulnerability is linked to their exposure and sensitivity to various land system components and is often mediated by access to multiple livelihood capitals. We quantify aspects of that intersection with household vulnerability as measured by food insecurity, and as it is mediated by access to livelihood capitals. We use a structural equation model of household vulnerability, organized under a livelihoods framework, fitted empirically using a combination of information from 726 household surveys. These surveys were conducted in communities in Namibia, Botswana and Zambia, and are contained within a socio-ecological gradient in the Kavango-Zambezi Transfrontier Conservation Area of southern Africa. We provide evidence that adaptive capacity strongly mediates household vulnerability to food insecurity via both direct and indirect pathways that are statistically associated with land use-derived functions.
Open-Access-Publikationsfonds. Einrichtung und Förderbedingungen
Creators: name: Capellaro, Christof
name: Kaier, Christian
name: Andrae, Magdalena
name: Blechl, Guido
name: Bodnar, Vitali
name: Ferus, Andreas
name: Formanek, Daniel
name: Kranewitter, Michael
name: Leitner, Edith
name: Liska, Martina
name: Mayrgündter, Eva
name: Rieck, Katharina
name: Steinrisser-Allex, Gregor
Publisher: name: Zenodo
Year: 2019
Subjects: Publikationsfonds
Förderbedingung
Open Access
Transformation
Finanzierung
Publikationskosten
Article Processing Charges

description: Das im Rahmen des Projekts "Austrian Transition to Open Access (AT2OA)" erstellte Papier "Open-Access-Publikationsfonds. Einrichtung und Förderbedingungen" ist als Leitfaden für die Gestaltung der Förderrichtlinien von Open-Access-Publikationsfonds konzipiert. Das Dokument soll insbesondere jenen Institutionen als Hilfsmittel dienen, die erstmals einen Open-Access-Publikationsfonds einrichten. Darüber hinaus möchte es auch Anstoß zur kritischen Durchsicht der Förderbedingungen bereits bestehender Publikationsfonds geben.

Als Leitfaden bietet es einen Überblick über Fragestellungen, die im Zuge der Ausgestaltung von Förderbedingungen geklärt werden sollten. Es stellt zu jedem Punkt unterschiedliche Regelungsmöglichkeiten mit ihren Vor- und Nachteilen dar. Auf diese Weise wird gewährleistet, dass die Regelungen leicht an die individuellen Anforderungen verschiedener Einrichtungen oder Disziplinen angepasst werden können.

In Form von Empfehlungen gibt das Papier auch einen Impuls zur Vereinheitlichung der Förderbedingungen verschiedener Einrichtungen. Eine solche Vereinheitlichung zielt darauf ab, klare Rahmenbedingungen für Wissenschaftlerlnnen zu schaffen, die Kosteneffizienz zu steigern und gegenüber Verlagen einheitliche Standards kommunizieren zu können.

The guidance document "Open Access Publication Funds - Establishment and Funding Conditions" was developed within the "Austrian Transition to Open Access (AT2OA)" project. It was created to provide a framework for the development of funding conditions for Open Access Publicatton Funds especially for institutions planning to set up an Open Access Publication Fund. In addition, it is meant to support a critical review of the funding conditions of existtng publication funds.

The document provides a wide ränge of questions that should be addressed when defining funding conditions. It offers different options and their respective advantages and disadvantages, ensuring that the policies and conditions can easily be adapted to the requirements of individual institutions or disciplines.

Moreover, it offers a number of recommendations for standardising funding conditions with the aim of providing a clear framework for scientists, increasing cost efficiency and communicating uniform standards to Publishers.
Non-Hamiltonian dynamics in optical microcavities resulting from wave-inspired corrections to geometric optics
Creators: name: Altmann, Eduardo G.
name: Del Magno, Gianluigi
name: Hentschel, Martina
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We introduce and investigate billiard systems with an adjusted ray dynamics that accounts for modifications of the conventional reflection of rays due to universal wave effects. We show that even small modifications of the specular reflection law have dramatic consequences on the phase space of classical billiards. These include the creation of regions of non-Hamiltonian dynamics, the breakdown of symmetries, and changes in the stability and morphology of periodic orbits. Focusing on optical microcavities, we show that our adjusted dynamics provides the missing ray counterpart to previously observed wave phenomena and we describe how to observe its signatures in experiments. Our findings also apply to acoustic and ultrasound waves and are important in all situations where wavelengths are comparable to system sizes, an increasingly likely situation considering the systematic reduction of the size of electronic and photonic devices.
description: 6 pages, 4 figures, final published version
Geographic similarity analysis for Land System Science: opportunities and tools to facilitate knowledge integration and transfer
Creators: name: Diogo, Vasco
name: Bürgi, Matthias
name: Debonne, Niels
name: Helfenstein, Julian
name: Levers, Christian
name: Swart, Rebecca
name: Williams, Tim G.
name: Verburg, Peter H.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Advances in Land System Science (LSS) rely on the evidence generated by different types of research activities, including place-based case studies, landscape/land-system mapping and synthesis research. However, these activities are usually conducted in parallel, with a lack of integration often leading to important knowledge gaps and limitations. In this article, we provide tools for the application of geographic similarity analysis (GSA), a collection of spatially-explicit methods assessing the degree of similarity between geographic locations, and thereby help to address these limitations. We identify opportunities for employing GSA to support: 1) selecting geographically representative sets of case studies; 2) integrating empirical evidence generated at different scales and levels of abstraction; and 3) facilitating context-sensitive knowledge transfer. The resulting toolbox provides approaches for facilitating researchers to get an enhanced understanding of multi-scale land change processes, as well as supporting land governance in scaling up the knowledge and solutions generated by LSS research.
A classification of smooth embeddings of 4-manifolds in 7-space, II
Creators: name: Crowley, Diarmuid
name: Skopenkov, Arkadiy
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 57R40, 57R52, 57R65

description: Let N be a closed, connected, smooth 4-manifold with H_1(N;Z)=0. Our main result is the following classification of the set E^7(N) of smooth embeddings N->R^7 up to smooth isotopy. Haefliger proved that the set E^7(S^4) with the connected sum operation is a group isomorphic to Z_{12}. This group acts on E^7(N) by embedded connected sum. Boechat and Haefliger constructed an invariant BH:E^7(N)->H_2(N;Z) which is injective on the orbit space of this action; they also described im(BH). We determine the orbits of the action: for u in im(BH) the number of elements in BH^{-1}(u) is GCD(u/2,12) if u is divisible by 2, or is GCD(u,3) if u is not divisible by 2. The proof is based on a new approach using modified surgery as developed by Kreck.
description: 25 pages. Typos corrected and minor changes to improve exposition. To appear in the International Journal of Mathematics
Ultra-low supply voltage crystal quartz oscillator
Creators: name: Korolev, A. M.
name: Shulga, V. M.
name: Turutanov, O. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: An ultra-low-voltage crystal quartz oscillator is proposed. The approach to its design is essentially based on using a HEMT operating in unsaturated dc regime and a quartz resonator as a resonant impedance transformer. The 25 MHz prototype shows steady oscillations at the supply voltage of less than 17 mV and the power consumption as low as 300 nW, i.e., 1-2 orders of magnitude lower than other to-date oscillators. This approach is good for building ultra-low consumption radio devices including those working at low temperatures.
description: 3 pages, 2 figures. The following article has been submitted to Review of Scientific Instruments. After it is published, it will be found at http://rsi.aip.org
Additional file 2 of The place of S-ketamine in fibromyalgia treatment (ESKEFIB): study protocol for a prospective, single-center, double-blind, randomized, parallel-group, dose-escalation controlled trial
Creators: name: Javorcikova, Zuzana
name: Dangoisse, Michel
name: Nikis, Stéphane
name: Lechat, Jean-Paul
name: Gillain, Aline
name: Fils, Jean-François
name: Van der Linden, Philippe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 2. Incident management protocol.
COMUNICACIÓN AUDIOVISUAL Y EDUCACIÓN INFANTIL
Creators: name: Ceballos, Antonio Cantos
Publisher: name: Zenodo
Year: 2002
Subjects: Televisión y Educación Infantil, Medios audiovisuales y Educación Infantil, Recepción televisiva, Recursos didácticos.

description: Existe una coincidencia fundamental entre los spots televisivos y los dibujos animados: su estructura narrativa. Las series de animación se caracterizan por un ritmo rápido en el cambio de planos que implica en los consumidores un tipo de lectura de imágenes que puede ser calificada como automática, fomentando una cierta pereza mental que agudiza las características más negativas de la comunicación audiovisual: los pequeños, habituados a esta forma narrativa, no ven desarrollada su capacidad para reflexionar y establecer una interacción crítica con los mensajes recibidos, lo cual constituye una condición esencial para el desarrollo de una personalidad autónoma. Estos niños tienden a instalarse en la relativa pasividad de una cierta lectura mecánica que sólo exige continuas novedades icónicas.
An Efficient and Simple Analytical Model for Analysis of Propagation Properties in Impedance Waveguides
Creators: name: Luukkonen, Olli
name: Simovski, Constantin R.
name: Räisänen, Antti V.
name: Tretyakov, Sergei A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: In this paper propagation properties of a parallel-plate waveguide with tunable artificial impedance surfaces as sidewalls are studied both analytically and numerically. The impedance surfaces comprise an array of patches over a dielectric slab with embedded metallic vias. The tunability of surfaces is achieved with varactors. Simple design equations for tunable artificial impedance surfaces as well as dispersion equations for the TE and TM modes are presented. The propagation properties are studied in three different regimes: a multi-mode waveguide, a single-mode waveguide, and below-cutoff waveguide. The analytical results are verified with numerical simulations.
description: 14 pages
Deforestation and agricultural fires in South-West Pará, Brazil, under political changes from 2014 to 2020
Creators: name: Jakimow, Benjamin
name: Baumann, Matthias
name: Salomão, Caroline
name: Bendini, Hugo
name: Hostert, Patrick
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: The increasing deforestation and fires since 2019 raises concerns about the irreversible destruction of the Brazilian Amazon. Our goal was to better understand these changes in south-west Pará across different land-tenure and farm systems and between the terms of President Rousseff, Temer, and Bolsonaro. We reconstructed deforestation and fire history using all Landsat and Sentinel-2 observations from 2014 to 2020 and assessed, using quasi-experimental methods, the average treatment effects of each presidency on deforestation and fires across land-tenure and farm types. Deforestation nearly quadrupled to 1,201 km2, particularly during Bolsonaro in undesignated areas and conservation units and on medium-sized farms (p < 0.001). Burning increased to 4,805 km2 and in all tenure types (p < 0.001). The increase was strongest in agrarian settlements and conservation units and on medium and large farms. Our observations show the importance of clarifying land-tenure and re-strengthening disincentives of environmental infractions, which have been weakened specifically under President Bolsonaro.
Tunable photonic band gaps with coherently driven atoms in optical lattices
Creators: name: Petrosyan, David
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Optical lattice loaded with cold atoms can exhibit a tunable photonic band gap for a weak probe field under the conditions of electromagnetically induced transparency. This system possesses a number of advantageous properties, including reduced relaxation of Raman coherence and the associated probe absorption, and simultaneous enhancement of the index modulation and the resulting reflectivity of the medium. This flexible system has a potential to serve as a testbed of various designs for the linear and nonlinear photonic band gap materials at a very low light level and can be employed for realizing deterministic entanglement between weak quantum fields.
Additional file 1 of The place of S-ketamine in fibromyalgia treatment (ESKEFIB): study protocol for a prospective, single-center, double-blind, randomized, parallel-group, dose-escalation controlled trial
Creators: name: Javorcikova, Zuzana
name: Dangoisse, Michel
name: Nikis, Stéphane
name: Lechat, Jean-Paul
name: Gillain, Aline
name: Fils, Jean-François
name: Van der Linden, Philippe
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Additional file 1. SPIRIT checklist.
Security Constrained Unit Commitment for Electricity Market:  Modeling, Solution Methodology and Future Challenges (TR96)
Creators: Chair: Yonghong Chen
Midcontinent Independent System Operator (MISO)
Vice Chair: Feng Pan
Pacific Northwest National Lab (PNNL)
Secretary: Feng Qiu
Argonne National Lab (ANL)
Members & Contributors: Tongxin Zheng
Muhammad Marwali
Haiwang Zhong
Bernard Knueven
Yongpei Guan
Peter Luh
Bing Yan
Mikhail Bragin
Lei Wu
Ross Baldick
Anthony Giacomoni
Boris Gisin
Qun Gu
Alinson S Xavier
Russ Philbrick
Jie Wan
Fran Li
Qiaozhu Zhai
Publisher: name: IEEE
Year: 2022

This report summarizes the technical activities of the IEEE Task Force on Solving Large Scale Optimization Problems in Electricity Market and Power System Applications. This Task Force was established by the IEEE Technology and Innovation Subcommittee to first review the state-of-the-art of the security-constrained unit commitment (SCUC) business model, its mathematical formulation, and solution techniques in solving electricity market clearing problems. The Task Force then investigated the emerging challenges of future market clearing problems and presented efforts in building benchmark mathematical and business models.
GEDIT: Geographic-Enhanced and Dependency-Guided Tagging for Joint POI and Accessibility Extraction at Baidu Maps
Creators: name: Sun, Yibo
name: Huang, Jizhou
name: Yuan, Chunyuan
name: Fan, Miao
name: Wang, Haifeng
name: Liu, Ming
name: Qin, Bing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Providing timely accessibility reminders of a point-of-interest (POI) plays a vital role in improving user satisfaction of finding places and making visiting decisions. However, it is difficult to keep the POI database in sync with the real-world counterparts due to the dynamic nature of business changes. To alleviate this problem, we formulate and present a practical solution that jointly extracts POI mentions and identifies their coupled accessibility labels from unstructured text. We approach this task as a sequence tagging problem, where the goal is to produce pairs from unstructured text. This task is challenging because of two main issues: (1) POI names are often newly-coined words so as to successfully register new entities or brands and (2) there may exist multiple pairs in the text, which necessitates dealing with one-to-many or many-to-one mapping to make each POI coupled with its accessibility label. To this end, we propose a Geographic-Enhanced and Dependency-guIded sequence Tagging (GEDIT) model to concurrently address the two challenges. First, to alleviate challenge #1, we develop a geographic-enhanced pre-trained model to learn the text representations. Second, to mitigate challenge #2, we apply a relational graph convolutional network to learn the tree node representations from the parsed dependency tree. Finally, we construct a neural sequence tagging model by integrating and feeding the previously pre-learned representations into a CRF layer. Extensive experiments conducted on a real-world dataset demonstrate the superiority and effectiveness of GEDIT. In addition, it has already been deployed in production at Baidu Maps. Statistics show that the proposed solution can save significant human effort and labor costs to deal with the same amount of documents, which confirms that it is a practical way for POI accessibility maintenance.
description: Accepted by CIKM'21
The Caustic Ring Model of the Milky Way Halo
Creators: name: Duffy, L. D.
name: Sikivie, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a proposal for the full phase space distribution of the Milky Way halo. The model is axially and reflection symmetric and its time evolution is self-similar. It describes the halo as a set of discrete dark matter flows with stated densities and velocity vectors everywhere. We first discuss the general conditions under which the time evolution of a cold collisionless self-gravitating fluid is self-similar, and show that symmetry is not necessary for self-similarity. When spherical symmetry is imposed, the model is the same as described by Fillmore and Goldreich, and by Bertschinger, twenty-three years ago. The spherically symmetric model depends on one dimensionless parameter $ε$ and two dimensionful parameters. We set $ε$ = 0.3, a value consistent with the slope of the power spectrum of density perturbations on galactic scales. The dimensionful parameters are determined by the Galactic rotation velocity (220 km/s) at the position of the Sun and by the age of the Galaxy (13.7 Gyr). The properties of the outer caustics are derived in the spherically symmetric model. The structure of the inner halo depends on the angular momentum distribution of the dark matter particles. We assume that distribution to be axial and reflection symmetric, and dominated by net overall rotation. The inner caustics are rings whose radii are determined in terms of a single additional parameter $j_{\rm max}$. We summarize the observational evidence in support of the model. The evidence is consistent with $j_{\rm max}$ = 0.18 in Concordance Cosmology, equivalent to $j_{\rm max,old}$ = 0.26 in Einstein - de Sitter cosmology. We give formulas to estimate the flow densities and velocity vectors anywhere in the Milky Way halo. The properties of the first forty flows at the location of the Earth are listed.
description: 35 pages, 6 figures
Blockchain and smart contract for IoT enabled smart agriculture
Creators: name: Pranto, Tahmid Hasan
name: Noman, Abdulla All
name: Mahmud, Atik
name: Haque, AKM Bahalul
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The agricultural sector is still lagging behind from all other sectors in terms of using the newest technologies. For production, the latest machines are being introduced and adopted. However, pre-harvest and post-harvest processing are still done by following traditional methodologies while tracing, storing, and publishing agricultural data. As a result, farmers are not getting deserved payment, consumers are not getting enough information before buying their product, and intermediate person/processors are increasing retail prices. Using blockchain, smart contracts, and IoT devices, we can fully automate the process while establishing absolute trust among all these parties. In this research, we explored the different aspects of using blockchain and smart contracts with the integration of IoT devices in pre-harvesting and post-harvesting segments of agriculture. We proposed a system that uses blockchain as the backbone while IoT devices collect data from the field level, and smart contracts regulate the interaction among all these contributing parties. The system implementation has been shown in diagrams and with proper explanations. Gas costs of every operation have also been attached for a better understanding of the costs. We also analyzed the system in terms of challenges and advantages. The overall impact of this research was to show the immutable, available, transparent, and robustly secure characteristics of blockchain in the field of agriculture while also emphasizing the vigorous mechanism that the collaboration of blockchain, smart contract, and IoT presents.
EMTP Tutorial
Creators: Demetrios Tziouvaras
Jules Esztergalyos
Charlie Henville
Ljubomir Kojovic
Peter McLaren
Moh Sachdev
Tarlochan Sidhu
Mietek Glinkowski
Publisher: name: IEEE
Year: 2001

This Tutorial presentation will review EMTP; Electromagnetic Transients Program. A software tool used by power systems engineers to analyse electromagnetic transients and associated insulation issues.
This Tutorial presentation will review EMTP; Electromagnetic Transients Program. A software tool used by power systems engineers to analyse electromagnetic transients and associated insulation issues.
Additional file 1 of QSAR, pharmacophore modeling and molecular docking studies to identify structural alerts for some nitrogen heterocycles as dual inhibitor of telomerase reverse transcriptase and human telomeric G-quadruplex DNA
Creators: name: Jawarkar, R. D.
name: Bakal, R. L.
name: Khatale, P. N.
name: Lewaa, Israa
name: Jain, Chetan M.
name: Manwar, Jagdish V.
name: Jaiswal, Minal S.
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Hematology
subject: Computational Biology

description: Additional file 1: Table S1. Docking results for Compound 82, BABR1532 and Epirubicin into the TERT; Table S2. Docking results for Epirubicin and compound 82 in the human Telomeric G DNA; Table S3. Depiction of QSAR results along with their experimental and predicted EC50 values for divided set model; Table S4. Depiction of QSAR results along with their experimental and predicted EC50 values for full set model; Table S5. Presentation of Serial number, CheMBL id, Smiles and Pec50 value of 82 compounds; Table S6. Calculated Descriptor values used to build QSAR model.
ZellDiX - A new approach to assess udder health by using DHI results and cell differentiation
Creators: name: Gass, Eva
name: Bartel, Alexander
name: Onken, Folkert
name: Baumgartner, Christian
name: Querengässer, Friederike
name: Doherr, Marcus G
Publisher: name: Zenodo
Year: 2019
Subjects: mastitis
DHI
milk testing
CDI
differential somatic cell count

description: Management of udder health is a challenging aspect on every dairy farm. Checking the somatic cell count (SCC) routinely in the course of DHI testing is the best way to indirectly assess udder health of dairy cows. In Germany, six udder health scores are being computed based on the monthly cell count results. Provided in a monthly report, they have been proven to be a useful tool in order to reflect the current udder health status. However, to our knowledge, there are no standardized indicators available based on DHI results to predict the individual status of udder health in the future.

The German ZellDiX project aims to enhance the informative value of DHI results by evaluating the additional value of differential somatic cell count (DSCC) and by establishing prognostic key figures for udder health. Since the introduction of a new generation of high throughput devices, SCC and DSCC can be analyzed simultaneously, allowing the assessment of the so called cell differentiation index (CDI). The CDI essentially reflects the proportion of macrophages of the total SCC. Throughout the project, cell differentiation was routinely performed from DHI samples taken over a period of 1.5 years from approximately 627,000 animals in Bavaria as well as from 139,000 animals partly from robot farms in North Rhine-Westphalia. Additionally, an experiment including 2,800 animals in Berlin-Brandenburg was conducted over a period of 5 months: DHI samples were analyzed with regard to SCC and CDI. Simultaneously, SCC, CDI, and the bacteriological status were assessed from udder quarter level samples of the same animals.

Based on the collected DHI data, two key figures were established in regard to different initial SCC. In the case of currently > 100,000 cells/ml, the probability for elevated cell counts in the next two months can be predicted. Whereas in the case of currently < 100,000 cells/ml, the probability for stable udder health with low cell counts in the next two months is predicted. By providing the probability for different outcome scenarios, farmers would be able to rank their animals according to high or low risk and prioritize their effort. Results from the current data evaluation of quarter milk samples, will serve as reference to DHI samples and give detailed insight into actual processes in the udder and the value of CDI.
description: {"references": ["R Core Team. (2019). R: A Language and Environment for Statistical Computing. Vienna, Austria. Retrieved from https://www.r-project.org/"]}
True Polar Wander on Dynamic Planets: Approximative Methods vs. Full Solution
Creators: name: Patočka, Vojtěch
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Almost three decades ago, the problem of long term polar wander on a dynamic planet was formulated and simplified within the framework of normal mode theory. The underlying simplifications have been debated ever since, recently in a series of papers by Hu et al. 2017a, 2017b, and 2019, who clarify the role of neglecting short-term relaxation modes of the body. However, the authors still do not solve the governing equations in full, because they make approximations to the Liouville equation (LE). In this paper I use a time domain approach and for previously studied test loads I solve both the relaxation of the body and the LE in full. I also compute the energy balance of true polar wander (TPW) in order to analyze the existing LE approximations. For fast rotating bodies such as the Earth, I show that the rotation axis is always aligned with the maximum principal axis of inertia (w||MMOI) once free oscillations are damped. The w||MMOI assumption is also re-derived theoretically. Contrary to previous beliefs, I demonstrate that it is not necessarily linked to the quasi-fluid simplification of the body's viscoelastic response to loading and rotation, but that it is an expression of neglecting the Coriolis and Euler forces in the equation of motion. For slowly rotating bodies such as Venus, the full LE together with energy analysis indicate that previous estimates of TPW in the normal direction need to be revisited. The numerical code LIOUSHELL is made freely available.
description: to be submitted to JGR:Planets
The development of the implied terms on quality and fitness in sale of goods in Britain and Canada
Creators: name: Sutherland, Elaine Elizabeth
Publisher: name: University of British Columbia
Year: 2010

description: Historically, in sale of goods transactions, the law has implied terms in the contract. These terms have varied in their content and application and have been subject to change. The implied terms concerning the quality of goods sold and their fitness for particular uses are considered in this thesis. The provisions of the common law in Scotland and England are examined historically, developmentally and comparatively, and the application of the English approach in Canada is noted. The effect on the common law of statutory provisions is then considered: first in Britain, and then in the adoption of the statutes in Canada. The content of the statutory provisions, their interpretation and amendment, and the criticisms of their operation, are reviewed. It becomes apparent that, in both Britain and Canada, these provisions have been the subject of criticism from various quarters. The precise meaning of the terms, their application in consumer and non-consumer contracts, their suitability to the variety of types of goods sold and the remedies available in cases of dispute, have all been questioned. The effect of this, in leading to calls for reform in Britain and Canada, is then examined. The work of the various law reform bodies and their proposals are considered from both the historical perspective and comparatively. It is concluded that, if the proposals for reform are fully implemented, they will provide a workable framework for modern conditions. Nonetheless, it is submitted that such a position could have been reached by the development of Scots common law.