cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Water on The Moon, III. Volatiles & Activity
Creators: name: Crotts, Arlin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: For centuries some scientists have argued that there is activity on the Moon (or water, as recounted in Parts I & II), while others have thought the Moon is simply a dead, inactive world. The question comes in several forms: is there a detectable atmosphere? Does the surface of the Moon change? What causes interior seismic activity? From a more modern viewpoint, we now know that as much carbon monoxide as water was excavated during the LCROSS impact, as detailed in Part I, and a comparable amount of other volatiles were found. At one time the Moon outgassed prodigious amounts of water and hydrogen in volcanic fire fountains, but released similar amounts of volatile sulfur (or SO2), and presumably large amounts of carbon dioxide or monoxide, if theory is to be believed. So water on the Moon is associated with other gases. We review what is known (and touch on what is unknown) about outgassing of various gases from the Moon.
description: 66 pages, 12 figures included in PDF file
Addition in Jacobians of tropical hyperelliptic curves
Creators: name: Nobe, Atsushi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Algebraic Geometry (math.AG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37K10, 14T05, 14H70

description: We show that there exists a surjection from the set of effective divisors of degree $g$ on a tropical curve of genus $g$ to its Jacobian by using a tropical version of the Riemann-Roch theorem. We then show that the restriction of the surjection is reduced to the bijection on an appropriate subset of the set of effective divisors of degree $g$ on the curve. Thus the subset of effective divisors has the additive group structure induced from the Jacobian. We finally realize the addition in Jacobian of a tropical hyperelliptic curve of genus $g$ via the intersection with a tropical curve of degree $3g/2$ or $3(g-1)/2$.
description: 23 pages, 8 figures, submitted to RIMS Kokyuroku Bessatsu
Efficient adaptive integration of functions with sharp gradients and cusps in n-dimensional parallelepipeds
Creators: name: Mousavi, S. E.
name: Pask, J. E.
name: Sukumar, N.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we study the efficient numerical integration of functions with sharp gradients and cusps. An adaptive integration algorithm is presented that systematically improves the accuracy of the integration of a set of functions. The algorithm is based on a divide and conquer strategy and is independent of the location of the sharp gradient or cusp. The error analysis reveals that for a $C^0$ function (derivative-discontinuity at a point), a rate of convergence of $n+1$ is obtained in $R^n$. Two applications of the adaptive integration scheme are studied. First, we use the adaptive quadratures for the integration of the regularized Heaviside function---a strongly localized function that is used for modeling sharp gradients. Then, the adaptive quadratures are employed in the enriched finite element solution of the all-electron Coulomb problem in crystalline diamond. The source term and enrichment functions of this problem have sharp gradients and cusps at the nuclei. We show that the optimal rate of convergence is obtained with only a marginal increase in the number of integration points with respect to the pure finite element solution with the same number of elements. The adaptive integration scheme is simple, robust, and directly applicable to any generalized finite element method employing enrichments with sharp local variations or cusps in $n$-dimensional parallelepiped elements.
description: 22 pages
A Framework for Exponential-Time-Hypothesis - Tight Algorithms and Lower Bounds in Geometric Intersection Graphs
Creators: name: de Berg, Mark
name: Bodlaender, Hans L.
name: Kisfaludi-Bak, Sándor
name: Marx, Dániel
name: van der Zanden, Tom C.
Publisher: name: CISPA
Year: 2023

description: We give an algorithmic and lower bound framework that facilitates the construction of subexponential algorithms and matching conditional complexity bounds. It can be applied to intersection graphs of similarly-sized fat objects, yielding algorithms with running time $2^{O(n^{1-1/d})}$ for any fixed dimension $d\ge 2$ for many well-known graph problems, including Independent Set, $r$-Dominating Set for constant $r$, and Steiner Tree. For most problems, we get improved running times compared to prior work; in some cases, we give the first known subexponential algorithm in geometric intersection graphs. Additionally, most of the obtained algorithms are representation-agnostic, i.e., they work on the graph itself and do not require the geometric representation. Our algorithmic framework is based on a weighted separator theorem and various treewidth techniques. The lower bound framework is based on a constructive embedding of graphs into $d$-dimensional grids, and it allows us to derive matching $2^{\Omega(n^{1-1/d})}$ lower bounds under the exponential time hypothesis even in the much more restricted class of $d$-dimensional induced grid graphs.
Application of CIM Standards in Enhancing Power System Interoperability
Creators: David Bogen
Alan  McMorran
Terry Nielsen
Meghana Ramesh
Alexander Anderson
Publisher: name: IEEE
Year: 2024

The accuracy of grid operations is determined by the credibility of model-based operations and studies and the exchange of information between utilities and private entities. Traditionally, this process is facilitated via bilateral communication and format transformation using customized scripts, which is prone to human errors and tedious maintenance work, especially due to infrastructure modernization efforts that provide the availability of additional information for market and grid operations. For instance, transmission and reliability operators must communicate operating and market information with many new entities, such as independent energy producers, DERMS, and other energy partners. Thus, CIM standards are proposed and recommended to enhance power system interoperability so that multi-lateral model exchanges and local customization can be completed accurately and efficiently.   This panel will present topics on how the CIM is used to solve many of the problems in operating the modern energy and transmission grid.
The accuracy of grid operations is determined by the credibility of model-based operations and studies and the exchange of information between utilities and private entities. Traditionally, this process is facilitated via bilateral communication and format transformation using customized scripts, which is prone to human errors and tedious maintenance work, especially due to infrastructure modernization efforts that provide the availability of additional information for market and grid operations. For instance, transmission and reliability operators must communicate operating and market information with many new entities, such as independent energy producers, DERMS, and other energy partners. Thus, CIM standards are proposed and recommended to enhance power system interoperability so that multi-lateral model exchanges and local customization can be completed accurately and efficiently.   This panel will present topics on how the CIM is used to solve many of the problems in operating the modern energy and transmission grid.
Assessment of changes in the level of human capital in Poland in the context of the use of European funds for projects in the field of science and education contracted for implementation in 2004-2006
Creators: name: Sikora-Gaca, Małgorzata
Publisher: name: figshare
Year: 2020
Subjects: subject: 140210 International Economics and International Finance
subject: FOS: Economics and business

description: The article presents the analysis of 2,947 projects in the area of science and education co-financed by the Structural Funds in Poland in 2004–2006. It summarizes the investments co-financed by the European Regional Development Fund, the European Social Fund and the European Agricultural Guidance and Guarantee Fund. Data on 2,947 projects, with their regional division, have been verified. Thanks to this regional leaders have been distinguished in terms of the number of projects and raised funds in 2004–2006. Most importantly, the amount of the subsidy from the EU to projects in the area of science and education in Poland in the years 2004–2006 has been estimated per capita of individual region. These data were compared with the selected human capital development indicators in 2003, 2006, 2009 and 2012 to assess the impact of European funding in the field of science and education on human capital in Poland.
A Small Subgroup Attack on Bitcoin Address Generation
Creators: name: Sala, Massimiliano
name: Sogiorno, Domenica
Publisher: name: CISPA
Year: 2023

description: We show how a small subgroup confinement-like attack may be mounted on the Bitcoin addresses generation protocol, by inspecting a special subgroup of the group associated to point multiplication. This approach does not undermine the system security but highlights the importance of using fair random sources during the private key selection.
Influences on male-male interactions in Colobus vellerosus
Creators: name: Larter, Luke
Publisher: name: Arts
Year: 2018
Subjects: subject: male-male aggression
subject: male primate relationships
subject: male-male interactions
subject: Colobus vellerosus
subject: Anthropology
subject: FOS: Sociology
subject: Anthropology--Physical
subject: Zoology
subject: FOS: Biological sciences

description: I examined how male-male relationships in a wild colobine are influenced by the characteristics of the groups males reside in, and by the characteristics of co-resident males. I also examined whether males alter the rate at which they perform different aggressive behaviours when facing different classes of opponent. Between May and October 2016, I collected focal data on 14 adult Colobus vellerosus males residing in 3 multi-male groups at the Boabeng Fiema Monkey Sanctuary, Ghana. I collected a mean of 15.06 focal hours per male, ranging from 2.65 to 18.77 hours. Males primarily interacted aggressively, spent little time in proximity, and rarely groomed one another or formed coalitions. Groups with a lower ratio of females to males had higher male-male aggression rates. The only factor that increased dyadic time spent in proximity was a history of parallel immigration into the group. Males performed agonistic displays at higher rates when interacting aggressively with newer co-resident males, and with extra-group males rather than co-residents. Males performed distance-reducing aggression at higher rates when interacting aggressively with newer co-resident males, and with co-residents rather than extra-group males. Male relationships in this species were as predicted for a species in which both uni- and multi-male groups occur: characterized by aggression, low affiliation, and avoidance. That males flexibly increased their use of agonistic displays in interactions with different classes of individuals suggests these behaviours are important in demonstrating a male’s quality to unfamiliar opponents.
Particle propagation and effective space-time in Gravity's Rainbow
Creators: name: Garattini, Remo
name: Mandanici, Gianluca
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Basing on the results obtained in a our previous study on Gravity's Rainbow, we determine the quantum corrections to the space-time metric for the Schwarzschild and the de Sitter background, respectively. We analyze how quantum fluctuations alter these metrics inducing modifications on the propagation of test particles. Significantly enough we find that quantum corrections can become relevant not only for particles approaching the Planck energy but, due to the one loop contribution, even for low-energy particles as far as Planckian length scales are considered. We briefly compare our results with others obtained in similar studies and with the recent experimental OPERA announcement of superluminal neutrino propagation.
description: RevTeX 4, 11 pages
การวิเคราะห์การบริหารความเสี่ยงด้านคุณภาพการศึกษาของโรงเรียนในโครงการพัฒนาการบริหารรูปแบบนิติบุคคล
Creators: name: พีรภัทร ฝอยทอง
Publisher: name: ศูนย์นวัตกรรมทางการศึกษา สื่อสิ่งพิมพ์ และสื่อออนไลน์
Year: 2564
Subjects: การบริหารความเสี่ยง
คุณภาพการศึกษา
โรงเรียนในโครงการพัฒนาการบริหารรูปแบบนิติบุคคล

description: วารสารครุศาสตร์, 49, 1, EDUCU4901004 (12 หน้า)
Certified Lattice Reduction
Creators: name: Joux, Antoine
name: Espitau, Thomas
Publisher: name: CISPA
Year: 2023

description: Quadratic form reduction and lattice reduction are fundamental tools in computational number theory and in computer science, especially in cryptography. The celebrated Lenstra–Lenstra–Lovász reduction algorithm (so-called lll) has been improved in many ways through the past decades and remains one of the central methods used for reducing integral lattice basis. In particular, its floating-point variants—where the rational arithmetic required by Gram–Schmidt orthogonalization is replaced by floating-point arithmetic— are now the fastest known. However, the systematic study of the reduction theory of real quadratic forms or, more generally, of real lattices is not widely represented in the literature. When the problem arises, the lattice is usually replaced by an integral approximation of (a multiple of) the original lattice, which is then reduced. While practically useful and proven in some special cases, this method doesn’t offer any guarantee of success in general. In this work, we present an adaptive-precision version of a generalized lll algorithm that covers this case in all generality. In particular, we replace floating-point arithmetic by Interval Arithmetic to certify the behavior of the algorithm. We conclude by giving a typical application of the result in algebraic number theory for the reduction of ideal lattices in number fields.
Distribution System State Estimation from Utility Perspective: Practical Challenges, Solutions and Benefits
Creators: Anamitra Pal
Alireza Rouhani
Tammy Okubo
Josh Bui
Publisher: name: IEEE
Year: 2024

A Distribution System State Estimator (DSSE) provides situational awareness to operators and Smart Grid applications. These applications include (1) Fault Location, Isolation, and Service Restoration (FLISR), (2) Circuit Re-Configuration, (3) Volt-Var Optimization (VVO), (4) Optimal Power Flow (OPF) and (5) circuit-phase and topology identifications. Many electrical utilities are in the process of implementing DSSE and Smart Grid applications as part of their grid modernization effort to improve reliability and asset utilization, avoid problems caused by Distributed Energy Resources (DERs), and predict load response to market or other signals. This panel reports on utilities’ experiences with these grid modernization efforts focusing on the successes and challenges with integrating DSSE in operational tools to support Smart Grid applications.
A Distribution System State Estimator (DSSE) provides situational awareness to operators and Smart Grid applications. These applications include (1) Fault Location, Isolation, and Service Restoration (FLISR), (2) Circuit Re-Configuration, (3) Volt-Var Optimization (VVO), (4) Optimal Power Flow (OPF) and (5) circuit-phase and topology identifications. Many electrical utilities are in the process of implementing DSSE and Smart Grid applications as part of their grid modernization effort to improve reliability and asset utilization, avoid problems caused by Distributed Energy Resources (DERs), and predict load response to market or other signals. This panel reports on utilities’ experiences with these grid modernization efforts focusing on the successes and challenges with integrating DSSE in operational tools to support Smart Grid applications.
Forest biomonitoring, biosecurity and DNA barcoding
Creators: name: DeWaard, Jeremy Ryan
Publisher: name: University of British Columbia
Year: 2010

description: The economic, social and biological value of our forests makes their sustainability essential to our well-being. To ensure their long-term health, it is critical to regularly and effectively monitor their inhabitants, as well as to detect non-indigenous species early and accurately. These programs rely on the precise diagnosis of species, which can be complicated for terrestrial arthropods by sizeable trap samples, damaged specimens, immature life stages and incomplete taxonomy. The recent advent of DNA barcoding, a technique that differentiates species using sequence variation in a standard gene region, shows tremendous promise for circumventing these obstacles. This dissertation evaluates the integration of barcoding into forest arthropod biomonitoring and biosurveillance programs with several investigations of nocturnal moths (Lepidoptera) in British Columbia, Canada. Barcode reference libraries are constructed for looper moths (Geometridae) and Lymantria (Erebidae) tussock moths, and are determined to successfully discriminate species in over 93% and 97% of cases, respectively. The libraries demonstrate how barcoding might enhance biosurveillance programs by flagging two new records for geometrid moths, and by successfully diagnosing 32 intercepted tussock moth specimens. These two libraries, and a multi-gene phylogeny constructed for Geometridae, are used to conduct faunal inventories in modified forest systems, and investigate the influence of disturbance on three levels of moth diversity—species, genetic, and phylogenetic. A first level inventory of Stanley Park, Vancouver, produces a preliminary list of 190 species, the detection of four new exotic species, and the discovery of two potentially cryptic species. Surveys conducted across several harvest treatments at two silvicultural research forests display no evidence of increased diversity at intermediate disturbance levels, but do reveal a correlation between species and genetic diversity. And lastly, three levels of moth diversity are estimated in ponderosa pine systems that differ widely in attack by Dendroctonus bark beetles, and demonstrate a negative association between species diversity and tree mortality. In combination, all projects suggest that DNA barcoding provides several advantages over traditional biosurveillance and biomonitoring, including the ability to rapidly sort specimens, a reduction in specialist time, the detection of species at low density, and the ability to appraise multiple levels of diversity.
The mechanics of bone drilling: experiment and finite element predictions
Creators: name: Powers, Marilyn Joy
Publisher: name: University of Calgary
Year: 2006

description: Bibliography: p. 134-141
description: Virtual reality surgical simulators are showing good promise as a viable addition to surgical training. In orthopaedic surgery, drilling is one of the most common and critical skills performed. Although the technology to recreate the sights and feel exists, a suitable haptic feedback model of bone drilling does not exist. The aim of this research is to develop a suitable model for predicting the thrust force felt while drilling bone. The key factors affecting the thrust force are the drilling feed rate, drill bit geometry and bone mineral density (BMD). Experiments were performed to measure the thrust force while drilling 31 porcine vertebrae using drill bits of 2.0, 2.5 and 3 .2 mm diameters and feed rates of 75, 100 and 125 mm/min. Quantitative computed tomography was used to document the BMD in the drilling trajectory. Maximum thrust force was recorded at 29 N and maximum bone mineral density was 1155 mg/cm3. Thrust force was found to correlate well with BMD with an exponential fit (F=a·eb·BMD) for each drill bit diameter. Three models from the metals, composites and rock drilling literature were used to calculate an energy parameter, which was then correlated with BMD. Predicted thrust force was calculated using the average BMD profiles of the remaining data and compared to both the BMD based model and the experimental thrust force. All the theoretical models were better predictors than the BMD based model. The simplest model, F = k D f where k = l.24x 107 e0· 003 ·BMD, Dis the drill bit diameter and/is the feed, s 2 2 s was the most accurate predictor. To further investigate the mechanics of drilling in bone, a finite element (FE) model of the chisel edge indenter was developed and validated. The model was validated with the experimental data for the 2.0 mm data but validation of the 3 .2 mm data was not successful. A factorial design using the FE model determined that the trabecular bone density, the feed of the drill, and the base material supporting the bone are the significant factors in the thrust force. A preliminary thrust force prediction model, suitable for the haptic portion of a virtual reality surgical simulator, has been successfully developed. Further experimental and theoretical work in expanding these results to more drill bits, human bone, anatomical sites and clinically relevant holes is recommended for a more complete model.
กลยุทธ์การกำหนดนโยบายและการนำนโยบายสู่การปฏิบัติ สำหรับนโยบายการจัดหาเครื่องคอมพิวเตอร์แท็บเล็ตให้แก่โรงเรียน
Creators: name: ศรีดา ตันทะอธิพานิช
Publisher: name: ศูนย์นวัตกรรมทางการศึกษา สื่อสิ่งพิมพ์ และสื่อออนไลน์
Year: 2564
Subjects: การกำหนดนโยบาย
การนำนโยบายสู่การปฏิบัติ
คอมพิวเตอร์แท็บเล็ต

description: วารสารครุศาสตร์, 49, 1, EDUCU4901005 (18 หน้า)
Simulating Transients and Dynamics of Distribution Systems with High Penetration of Inverter-based Resources
Creators: Wei Du
Zhe Chen
Udoka Nwaneto
Roshan  Sharma
Xiaonan Lu
Francis K. Tuffner
Xue Yaosuo
Publisher: name: IEEE
Year: 2024

The distribution system is experiencing a significant change with the massive increase of grid-following and grid-forming, inverter-based distributed energy resources (DERs) in recent years. This brings challenges to the modeling and simulation of such complex, large-scale distribution systems.  This panel gathers domain experts from national labs, inverter manufacturers, utilities, and government agencies to discuss the challenges and potential solutions of modeling the transient and dynamic behaviors of large-scale, resilient distribution systems with high penetration of inverters. First, physics-based and data-driven approaches such as white-, black-, and gray-box modeling that aim to address the challenges of inverter modeling under different situations will be presented. Second, an integrated electromagnetic transient and three-phase phasor co-simulation platform developed based on GridLAB-D that aims to simulate large-scale distribution systems with potentially thousands of inverters will be introduced. Third, real-world transient and dynamic events of distribution feeders with high penetration of inverters captured by micro-phasor-measurement-units (μPMUs) and power quality meters will be shared and discussed. Finally, panel discussions and interactions with the audience will also be included in this special session.
The distribution system is experiencing a significant change with the massive increase of grid-following and grid-forming, inverter-based distributed energy resources (DERs) in recent years. This brings challenges to the modeling and simulation of such complex, large-scale distribution systems.  This panel gathers domain experts from national labs, inverter manufacturers, utilities, and government agencies to discuss the challenges and potential solutions of modeling the transient and dynamic behaviors of large-scale, resilient distribution systems with high penetration of inverters. First, physics-based and data-driven approaches such as white-, black-, and gray-box modeling that aim to address the challenges of inverter modeling under different situations will be presented. Second, an integrated electromagnetic transient and three-phase phasor co-simulation platform developed based on GridLAB-D that aims to simulate large-scale distribution systems with potentially thousands of inverters will be introduced. Third, real-world transient and dynamic events of distribution feeders with high penetration of inverters captured by micro-phasor-measurement-units (μPMUs) and power quality meters will be shared and discussed. Finally, panel discussions and interactions with the audience will also be included in this special session.
Distribution Test Feeders for Dynamics and Hosting Capacity
Creators: Davis Montenegro
Dave Turcotte
Alexander Anderson
Paulo Radatz
Ali Moeni
Eran Schweitzer
Publisher: name: IEEE
Year: 2024

The IEEE distribution test feeders began in 1991 with a 13-bus case. Since then, the set of cases has expanded to support new and replicable research, highlight new applications, and encourage the development of analytical tools. This panel will present the motivations and applications for the most recent test feeders, including distribution system dynamics, distributed energy resource (DER) hosting capacity analysis, and studies of large-scale reconfigurable systems.  Panelists will also describe lessons learned from solving the new test cases in a variety of open-source and research-grade analysis tools. Those interested in hosting capacity, islanding, protection, and bulk electric system impacts of DER should consider attending.
The IEEE distribution test feeders began in 1991 with a 13-bus case. Since then, the set of cases has expanded to support new and replicable research, highlight new applications, and encourage the development of analytical tools. This panel will present the motivations and applications for the most recent test feeders, including distribution system dynamics, distributed energy resource (DER) hosting capacity analysis, and studies of large-scale reconfigurable systems.  Panelists will also describe lessons learned from solving the new test cases in a variety of open-source and research-grade analysis tools. Those interested in hosting capacity, islanding, protection, and bulk electric system impacts of DER should consider attending.
Vertical Structure of Stationary Accretion Disks with a Large-Scale Magnetic Field
Creators: name: Bisnovatyi-Kogan, G. S.
name: Lovelace, R. V. E.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In earlier works we pointed out that the disk's surface layers are non-turbulent and thus highly conducting (or non-diffusive) because the hydrodynamic and/or magnetorotational (MRI) instabilities are suppressed high in the disk where the magnetic and radiation pressures are larger than the plasma thermal pressure. Here, we calculate the vertical profiles of the {\it stationary} accretion flows (with radial and azimuthal components), and the profiles of the large-scale, magnetic field taking into account the turbulent viscosity and diffusivity and the fact that the turbulence vanishes at the surface of the disk. Also, here we require that the radial accretion speed be zero at the disk's surface and we assume that the ratio of the turbulent viscosity to the turbulent magnetic diffusivity is of order unity. Thus at the disk's surface there are three boundary conditions. As a result, for a fixed dimensionless viscosity $α$-value, we find that there is a definite relation between the ratio ${\cal R}$ of the accretion power going into magnetic disk winds to the viscous power dissipation and the midplane plasma-$β$, which is the ratio of the plasma to magnetic pressure in the disk. For a specific disk model with ${\cal R}$ of order unity we find that the critical value required for a stationary solution is $β_c \approx 2.4r/(αh)$, where $h$ the disk's half thickness. For weaker magnetic fields, $β> β_c$, we argue that the poloidal field will advect outward while for $β< β_c$ it will advect inward. Alternatively, if the disk wind is negligible (${\cal R} \ll 1$), there are stationary solutions with $β\gg β_c$.
description: 5 pages, 3 figures
Analysis of $Λ_b \rar Λ\ell^+ \ell^-$ transition in SM4 using form factors from Full QCD
Creators: name: Azizi, K.
name: Katirci, N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Using the responsible form factors calculated via full QCD, we analyze the $Λ_{b}\rightarrow Λ\ell^{+}\ell^{-}$ transition in the standard model containing fourth generation quarks (SM4). We discuss effects of the presence of $t'$ fourth family quark on related observables like branching ratio, forward-backward asymmetry, baryon polarization as well as double lepton polarization asymmetries. We also compare our results with those obtained in the SM as well as with predictions of the SM4 but using form factors calculated within heavy quark effective theory. The obtained results on branching ratio indicate that the $Λ_{b}\rightarrow Λ\ell^{+}\ell^{-}$ transition is more probable in full QCD comparing to the heavy quark effective theory. It is also shown that the results on all considered observables in SM4 deviate considerably from the SM predictions when $m_{t'}\geq 400 GeV$.
description: 22 Pages and 21 Figures
Intelligent Optimization Methods Applied to Power System Protection
Creators: Enrico Ragaini
Eduardo Asada
Benvindo Junior
Denis  Coury
Jose Luis Rueda
Publisher: name: IEEE
Year: 2024

Power system protection is a classical area in power systems, and it presents a conservative nature since the faults have to be cleared rapidly to avoid further spread of disturbances. In order to increase the reliability of this system, backup and monitoring devices are employed. Due to its critical application, computational methods based on classical optimization or intelligent systems hardly ever are mentioned as common applications. This fact brings challenges for the application of optimization methods and automation techniques to protection systems. The experts invited to this panel will give an overview of the latest emerging methods for the formulation and computationally effective solutions of different types of complex optimization and automation methods to protection systems. The panel will have interactive discussions with the audience on several key aspects that include intelligent methods to protection planning, automation and optimization.
Power system protection is a classical area in power systems, and it presents a conservative nature since the faults have to be cleared rapidly to avoid further spread of disturbances. In order to increase the reliability of this system, backup and monitoring devices are employed. Due to its critical application, computational methods based on classical optimization or intelligent systems hardly ever are mentioned as common applications. This fact brings challenges for the application of optimization methods and automation techniques to protection systems. The experts invited to this panel will give an overview of the latest emerging methods for the formulation and computationally effective solutions of different types of complex optimization and automation methods to protection systems. The panel will have interactive discussions with the audience on several key aspects that include intelligent methods to protection planning, automation and optimization.
Deep gaze pooling: Inferring and visually decoding search intents from human gaze fixations
Creators: name: Sattara, Hosnieh
name: Fritz, Mario
name: Bulling, Andreas
Publisher: name: CISPA
Year: 2023

description: Predicting the target of visual search from human eye fixations (gaze) is a difficult problem with many applications, e.g. in human-computer interaction. While previous work has focused on predicting specific search target instances, we propose the first approach to predict categories and attributes of search intents from gaze data and to visually reconstruct plausible targets. However, state-of-the-art models for categorical recognition, in general, require large amounts of training data, which is prohibitive for gaze data. To address this challenge, we further propose a novel Gaze Pooling Layer that combines gaze information with visual representations from Deep Learning approaches. Our scheme incorporates both spatial and temporal aspects of human gaze behavior as well as the appearance of the fixated locations. We propose an experimental setup and novel dataset and demonstrate the effectiveness of our method for gaze-based search target prediction and reconstruction. We highlight several practical advantages of our approach, such as compatibility with existing architectures, no need for gaze training data, and robustness to noise from common gaze sources.
Geometric Microcanonical Thermodynamics for Systems with First Integrals
Creators: name: Franzosi, Roberto
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences
subject: 53A05

description: In the general case of a many-body Hamiltonian system, described by an autonomous Hamiltonian $H$, and with $K\geq 0$ independent conserved quantities, we derive the microcanonical thermodynamics. By a simple approach, based on the differential geometry, we derive the microcanonical entropy and the derivatives of the entropy with respect to the conserved quantities. In such a way, we show that all the thermodynamical quantities, as the temperature, the chemical potential or the specific heat, are measured as a microcanonical average of the appropriate microscopic dynamical functions that we have explicitly derived. Our method applies also in the case of non-separable Hamiltonians, where the usual definition of kinetic temperature, derived by the virial theorem, does not apply.
description: 4 pages
Program Dostępność plus – podstawy prawne, obszary wsparcia, budżet
Creators: name: Sikora-Gaca, Małgorzata
Publisher: name: figshare
Year: 2020
Subjects: subject: 160512 Social Policy
subject: FOS: Political science

description: European funds implemented in Poland contribute to breaking many
obstacles, both in architectural and social terms. However, there is still a long way to go in the subject of broadly understood accessibility, especially in the context of social groups with various types of barriers. The Programme has been created to impede the active participation of dependent people in private and public life. Thanks to the involvement of European funds, Norwegian instruments and funds
from the European Economic Area countries, the government has
set up the Accessibility Plus Programme, which includes both those
investments that have already been planned for implementation in
operational programmes, as well as subsequent initiatives. The share
of the Polish state budget in the planned investment programme for
2018-2025 will amount to 1%, of the local governments to 5%, and of
the the target fund to 6%.
Higher order spectra from an initially anisotropic universe
Creators: name: Minamitsuji, Masato
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In this paper, we present the higher order spectra of a scalar field produced through the higher derivative interactions in the initially anisotropic universe. Although we ignore the backreaction of the scalar field on the geometry, our analysis should have much overlap with the quantum fluctuations of the inflaton field in the anisotropic universe. We also include the planar modes whose momenta are along the plane which is perpendicular to the primordial preferred direction, for which effects of the initial anisotropy are not suppressed. The presence of a negative frequency mode produces features distinguishable from the case of the de Sitter inflation. We also show that richer features appear in the trispectra due to the primordial anisotropy.
description: Physical Review D 85, 103526 (2012)
MAS based methods for techno-economic performance of future low inertia multi-energy systems
Creators: Han  La Poutré
Koen Kok
Jorge Poveda
Jose Luis Rueda Torres
Yashen  Lin
Kwang Y.  Lee
Publisher: name: IEEE
Year: 2024

To satisfy the increasing demand for energy and fulfill the Paris Agreement, power systems worldwide are pursuing an accelerated massive replacement of conventional power plants by renewable power plants, and a higher integration between electrical power systems and other energy systems. This entails unprecedented variable operating conditions, and high risk of disruptions and blackouts in future with high societal costs. This panel is devoted to discuss emerging methods for the application of multi-agent systems on the assessment and enhancement of the technical and economic performace for future low intertia multi-energy systems. Thinking about the practical deployment of such methods in academia and industry, several implementation challenges, such as computational efficiency, data requirements, robustness, etc., will be discussed.
To satisfy the increasing demand for energy and fulfill the Paris Agreement, power systems worldwide are pursuing an accelerated massive replacement of conventional power plants by renewable power plants, and a higher integration between electrical power systems and other energy systems. This entails unprecedented variable operating conditions, and high risk of disruptions and blackouts in future with high societal costs. This panel is devoted to discuss emerging methods for the application of multi-agent systems on the assessment and enhancement of the technical and economic performace for future low intertia multi-energy systems. Thinking about the practical deployment of such methods in academia and industry, several implementation challenges, such as computational efficiency, data requirements, robustness, etc., will be discussed.
Distances of qubit density matrices on Bloch sphere
Creators: name: Kim, Sejong
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 15A30, 81R60, 83A05

description: We recall the Einstein velocity addition on the open unit ball $\B$ of $\R^{3}$ and its algebraic structure, called the Einstein gyrogroup. We establish an isomorphism between the Einstein gyrogroup on $\B$ and the set of all qubit density matrices representing mixed states endowed with an appropriate addition. Our main result establishes a relation between the trace metric for the qubit density matrices and the rapidity metric on the Einstein gyrogroup $\B$.
description: I thank to my supervisor, Jimmie Lawson. This was accepted in Journal of Mathematical Physics at September 26, 2011
Full EMT Simulation of Large Power Systems
Creators: Ani Gole
Jean Mahseredjian
Yi Zhang
Jean Bélanger
Sébastien Dennetiere
Andrew Isaacs
Publisher: name: IEEE
Year: 2024

Transient stability (TS) simulation programs have been successfully used by power engineering community for over a half century. Full EMT simulation is becoming a necessary alternative solution when many power electronics apparatus are connected to power systems. The models of the power electronics equipment are well developed in EMT simulation programs. The challenge is the computation speed to deal with large systems. Historically EMT simulation is only used for smaller power systems because it uses smaller time step and more detail models, therefore its computation time is much longer compared to TS simulation. Whether they can be used to process thousands of contingencies for large power system with 10s thousand bus remain to be a huge challenge. A taskforce was formed to address the needs of EMT simulation of large power systems. We are proposing this panel to share the new advancements in this area.
Transient stability (TS) simulation programs have been successfully used by power engineering community for over a half century. Full EMT simulation is becoming a necessary alternative solution when many power electronics apparatus are connected to power systems. The models of the power electronics equipment are well developed in EMT simulation programs. The challenge is the computation speed to deal with large systems. Historically EMT simulation is only used for smaller power systems because it uses smaller time step and more detail models, therefore its computation time is much longer compared to TS simulation. Whether they can be used to process thousands of contingencies for large power system with 10s thousand bus remain to be a huge challenge. A taskforce was formed to address the needs of EMT simulation of large power systems. We are proposing this panel to share the new advancements in this area.
Intelligent management of distributed storage for sustainable energy communities
Creators: Petr Musilek
Zita Vale
Steffen Ziegler
Joao Soares
Tiago Pinto Torres
Publisher: name: IEEE
Year: 2024

Environmental issues over the world are increasing leading to the need for improved energy management in search of sustainable energy systems. The increasing use of renewable energy sources is lowering the traditional generation flexibility level. The system must find new flexibility sources, namely using demand flexibility delivered in the scope of demand response programs and making use of storage. Distributed storage, together with distributed generation, demand response, and electric vehicle management, plays a very relevant role in local energy resource management, namely in energy communities. The complexity of the energy management problem under the new circumstances requires new methods, with Artificial Intelligence bringing promising solutions. Artificial intelligence-based methods and their effective application in rural and urban energy communities is the main focus of this panel session. Interaction among energy communities’ members as well as among different energy communities are also addressed.
Environmental issues over the world are increasing leading to the need for improved energy management in search of sustainable energy systems. The increasing use of renewable energy sources is lowering the traditional generation flexibility level. The system must find new flexibility sources, namely using demand flexibility delivered in the scope of demand response programs and making use of storage. Distributed storage, together with distributed generation, demand response, and electric vehicle management, plays a very relevant role in local energy resource management, namely in energy communities. The complexity of the energy management problem under the new circumstances requires new methods, with Artificial Intelligence bringing promising solutions. Artificial intelligence-based methods and their effective application in rural and urban energy communities is the main focus of this panel session. Interaction among energy communities’ members as well as among different energy communities are also addressed.
Alteration in, and recovery of, cerebral activation during a working memory task following pediatric mild traumatic brain injury
Creators: name: Khetani, Aneesh
Publisher: name: Cumming School of Medicine
Year: 2018
Subjects: subject: Neuroscience
subject: Pediatric
subject: Concussion
subject: Traumatic brain injury
subject: MRI
subject: Magnetic Resonance Imaging
subject: Functional Imaging
subject: Working memory
subject: Cognition
subject: Children
subject: Youth
subject: Education--Sciences
subject: Neuroscience
subject: Biophysics--Medical

description: Introduction: Mild traumatic brain injuries (mTBIs) are most common in children and adolescents. For some, symptoms can persist for an extended duration, especially in the cognitive and working memory domains. The neurological changes that underlie these differences in children with persistent symptoms, and their recovery over time, have not been characterized at distinct time points. Objectives: To determine how cortical activation during a working memory task is different in children with persistent symptoms, relative to control and asymptomatic children, and to observe how that changes with time. Methods: This was a prospective, controlled cohort study of pediatric mTBI at approximately one- and two- months post-injury. Symptom status was determined by the post-concussion symptom inventory (PCSI). A visuospatial n-back working memory task was designed for use with functional magnetic resonance imaging (fMRI). The primary outcome measures were the blood oxygen level dependent (BOLD) signal and n-back working memory task performance. Results: 107 participants (60 symptomatic mTBI, 30 asymptomatic mTBI and 17 controls) were compared approximately one month following mTBI. Mean age was 14.2 years (SD 2.5) and 44% were male. During the n-back task, at approximately one month post-injury, symptomatic mTBI children had decreased activation in the posterior cingulate and precuneus regions compared to asymptomatic children, with no difference in performance. By approximately two months post-injury, we found that symptomatic children had less working memory related cortical activation compared to their own one month post-injury scan, and an improvement in task performance (n=45). Conclusions: Symptomatic mTBI children have cortical activation differences compared to asymptomatic children. Over time, there is a decrease in working memory functional activation within that symptomatic group. Our findings highlight the neurobiological consequences of pediatric mTBI on working memory cortical activation and recovery.
Photoconductivity of biased graphene
Creators: name: Freitag, Marcus
name: Low, Tony
name: Xia, Fengnian
name: Avouris, Phaedon
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Graphene is a promising candidate for optoelectronic applications such as photodetectors, terahertz imagers, and plasmonic devices. The origin of photoresponse in graphene junctions has been studied extensively and is attributed to either thermoelectric or photovoltaic effects. In addition, hot carrier transport and carrier multiplication are thought to play an important role. Here we report the intrinsic photoresponse in biased but otherwise homogeneous graphene. In this classic photoconductivity experiment, the thermoelectric effects are insignificant. Instead, the photovoltaic and a photo-induced bolometric effect dominate the photoresponse due to hot photocarrier generation and subsequent lattice heating through electron-phonon cooling channels respectively. The measured photocurrent displays polarity reversal as it alternates between these two mechanisms in a backgate voltage sweep. Our analysis yields elevated electron and phonon temperatures, with the former an order higher than the latter, confirming that hot electrons drive the photovoltaic response of homogeneous graphene near the Dirac point.
Formale Methoden für rekonfigurierbare cyber-physische Systeme in der Produktion
Creators: name: Grochowski, Marco
name: Simon, Hendrik
name: Bohlender, Dimitri
name: Kowalewski, Stefan
name: Löcklin, Andreas
name: Müller, Timo
name: Jazdi, Nasser
name: Zeller, Andreas
name: Weyrich, Michael
Publisher: name: CISPA
Year: 2023

description: No description available