cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
DIRECT ON-CHIP COOLING OF HETEROGENEOUSLY INTEGRATED PACKAGES USING SINGLE AND TWO-PHASE JET IMPINGEMENT
Creators: name: Patel, Akshat Hetal
Publisher: name: Purdue University Graduate School
Year: 2025
Subjects: classificationCode: 401799
subject: Mechanical engineering not elsewhere classified

description: This work proposes single and two-phase jet impingement cooling as a potential thermal management technique for data center server chips which pose the challenge of thermal coupling apart from the self-heating. First of its kind experimental demonstrations for single and two phase direct-on chip jet impingement cooling of multichip packages are developed and discussed. Using single phase jet impingement, logic chip powers as high as 1700W (TDP = 1.86 kW) were dissipated while keeping its temperature below 105℃. Up to 40W of HBM power was also simultaneously dissipated in the four HBMs each with maximum temperature being 65℃ (against the maximum allowable temperature of 85℃). The minimum thermal resistance for logic chip and HBMs were evaluated to be 0.183 cm2.K/W and 0.42 cm2.K/W respectively at a cooler pressure drop of 48.32 kPa using water. Replacing water with R1233zd(E) refrigerant, two-phase cooling was achieved for all five chips simultaneously. Individual boiling curves under various operating conditions are also extracted to understand the influence of HBM dissipation on logic chip boiling curve. Power dissipation in HBMs did not affect the CHF for logic chip and thus a maximum heat flux of 66.32 W/cm2 and 45W/cm2 were dissipated in the logic chip and HBMs. Maximum two-phase heat transfer coefficient of 15,500 cm2.K/W and 12,000 cm2.K/W was achieved for the logic chip and HBMs at a cooler pressure drop of 28.1 kPa. With R1233zd(E) refrigerant, the corresponding minimal thermal resistance for logic chip and HBMs under the two-phase jet cooling were 0.645 cm2.K/W and 0.833 cm2.K/W respectively.
Scaling Enterprise Recommender Systems for Decentralization
Creators: name: van der Goes, Maurits
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Within decentralized organizations, the local demand for recommender systems to support business processes grows. The diversity in data sources and infrastructure challenges central engineering teams. Achieving a high delivery velocity without technical debt requires a scalable approach in the development and operations of recommender systems. At the HEINEKEN Company, we execute a machine learning operations method with five best practices: pipeline automation, data availability, exchangeable artifacts, observability, and policy-based security. Creating a culture of self-service, automation, and collaboration to scale recommender systems for decentralization. We demonstrate a practical use case of a self-service ML workspace deployment and a recommender system, that scale faster to subsidiaries and with less technical debt. This enables HEINEKEN to globally support applications that generate insights with local business impact.
description: Accepted as Industry Poster at RecSys '21: Fifteenth ACM Conference on Recommender Systems
Observation of lasing without inversion in a hot rubidium vapor under electromagnetically-induced transparency conditions
Creators: name: Wu, Haibin
name: Xiao, Min
name: Gea-Banacloche, J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We have observed CW lasing without inversion in a gas of hot rubidium atoms in an optical cavity under conditions of electromagnetically-induced transparency (EIT). The medium is pumped coherently and resonantly by a single ``coupling'' beam which also produces EIT in the lasing transition. The steady-state intensity exhibits thresholds as a function of the atomic density and the strength of the coupling beam. A theoretical model for an effective three-level lambda system indicates that gain without inversion is possible in this system if the two ground states are coupled by depolarizing collisions, and if the decay branching ratios meet certain conditions.
description: 4 pages, 4 figures
2019 IEEE General Meeting Misc. 8/7 Panel Presentations
Creators: P. Briff
B. Pham
D. Faatz
K. Sloan
M. Rothleder
S. Eedupuganti
X. Xie
Publisher: name: IEEE
Year: 2019

2019 IEEE General Meeting Misc. 8/7 Panel Presentations
This product contains 7 presentations from the following Wednesday, August 7th panel sessions:
1. Panel: HVDC Transmission and FACTS Fundamentals,
    Presentation: HVDC Technology: Voltage Source Converters
2. Panel: Vision for Next Generation Distribution Automation
    Presentation: Vision for Next Generation Distribution Automation
3. Panel: Cyber-Physical Situational Awareness for the Power Grid � Opportunities and Challenges
    Presentation: Cyber Situational Awareness for Electric Utilities
4. Panel: Integration of Electric Transportation in Modern Distribution Systems: Challenges and Solutions
    Presentation: Transportation Electrification at SCE
5. Panel: Integrated Resource Planning in California
    Presentation: CAISO Reliability Assessments of the California IRP Plans
6. Panel: Challenges and Solutions for Synchrophasor Data Quality in Power System Operation
    Presentation: Challenges and Solutions for Synchrophasor Data Quality in Power System Operation: PJM�s Perspective
7. Panel: Modeling and Control of Power Electronic Based Power Systems
    Presentation: A System-wide Protection against Unstable SSCI in Series-Compensated Wind Power Systems
TESC 2019 - Resilience
Creators: Bishnu Bhattarai
Teja Kuruganti
Ebrahim Vaahedi
Micheal Starke
Publisher: name: IEEE
Year: 2019

Technical Session
Transactive Energy Systems for Contingencies - Transactive energy systems (TES) have been successfully demonstrated to achieve an economic market efficiency during normal grid operations. Current TES designs are based on marginal benefits to the buyer and marginal cost to the seller and are designed meet to the technical needs of the power system during normal economic operations. However, TES designs for contingency situations have not been adequately explored. Because power system operations involve risks and uncertainties ranging from forecast errors to natural disasters (e.g., hurricanes, tornados, cyberattacks) which can potentially affect large portions of the system, TES approaches that can engage DERs during grid contingencies could add benefits to both DERs and system operators. In this study, we first investigate potential TES mechanisms to be used for contingency conditions.

Improving Distribution System Resilience Using Responsive Loads - We present a novel method to improve distribution resilience by accessing the flexibility in demand resources using decentralized transactive control along with intelligent distribution reconfiguration. The implementation of the decentralized control of residential DERs to provide grid services centers around the ability to do near-real-time estimation (of flexibility), optimization (guarantee response from DERs), and robust control (reliable actuation to affect the grid parameters of interest in a given use case).

Transactive Microgrids: Creating Resilience and Economic Benefits - In this presentation, a technology framework is provided which facilitates the design and deployment of transactive microgrids capable of achieving the above goals followed by some use cases demonstrating the resiliency and economic benefits that such microgrids are capable of generating.

Agent Based Framework for Supporting Transactive Power Electronic Systems - In this paper, the concept of a framework based on an agent-based interface for power stages in a power electronic system is presented. The presented concept or agent system is able to consider any number of different types of sources, types of converters, communication protocols, embedded decision making to support transactive, and hierarchy for large system integration. The concept is presented through several examples including the implementation on an actual physical system.
TESC 2019 - Regulatory & Policy
Creators: Larisa Dobriansky
Mark Knight
Farrokh Rahimi
Publisher: name: IEEE
Year: 2019

Technical Session
Regulatory Accelerators for Building Transactive Energy Markets - will focus on "regulatory accelerators" for transitioning from a predominant reliance upon administrative mechanisms, under the legacy utility paradigm, to market-based mechanisms.

Readiness of Policy for TES - This presentation focuses on the upper part of the GWAC Stack, specifically on policy.

Transactive Energy Operations Cost-Benefit Alignment - This presentation lays out an incentive-compatible Transactive Energy Systems design to ensure while a level playing field is provided for the transactive agents, such standby/passive consumers are protected both financially (with respect to their electricity bills) and with respect to the level of service they receive.
Enhancement of the pinning potential in a single-crystal superconductor FeTe0.65Se0.35 under the influence of hydrogen sorption
Creators: name: Timofeev, V. P.
name: Bondarenko, S. I.
name: Meleshko, V. V.
name: Savina, Yu. A.
name: Wiśniewski, A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: As a result of experimental studies of the single-crystal iron-chalcogenide compound FeTe0.65Se0.35, the effect of structural transitions caused by hydrogen sorption on the magnetic and current-carrying properties of a superconductor has been established. An increase in the volume-averaged effective pinning potential (and the associated critical current density) after the process of hydrogen sorption at temperatures up to 150 °C - 200 °C can be explained by the appearance of additional pinning centers due to the local action of implanted H ions on its crystal structure and electronic states. It was confirmed that hydrogenation is an efficient tool for increasing flux pining properties of superconductors.
Evolutional of the SAR ADC Slides
Creators: Michael Flynn
Publisher: name: IEEE
Year: 2018

ISSCCedu Training
Abstract
Successive approximation Analog to Digital Converters (SAR ADCs) have become one of the dominant types of ADC. SAR ADCs are extremely efficient when working at moderate sampling speeds and at moderate resolutions. Through interleaving, SAR ADCs can operate at very high sampling rates. This presentation traces the evolution of the SAR architecture, beginning before the IC age. Some of the techniques that make CMOS SAR ADCs so effective are highlighted. Techniques that overcome limitations of the SAR architecture are described.

Speaker Biography
Michael P. Flynn received the Ph.D. degree from Carnegie Mellon University in 1995. From 1995 to 1997, he was a Member of Technical Staff with Texas Instruments, Dallas, TX. During the four-year period from 1997 to 2001, he was with Parthus Technologies, Cork, Ireland. Dr. Flynn joined the University of Michigan in 2001, and is currently Professor. His technical interests are in RF circuits, data conversion, serial transceivers and biomedical systems.

Michael Flynn is a 2008 Guggenheim Fellow. He received the 2016 University of Michigan Faculty Achievement Award. He received the 2011 Education Excellence Award and the 2010 College of Engineering Ted Kennedy Family Team Excellence Award from the College from Engineering at the University of Michigan. He received the 2005-2006 Outstanding Achievement Award from the Department of Electrical Engineering and Computer Science at the University of Michigan. He received the NSF Early Career Award in 2004.

Dr. Flynn was Editor-in-Chief of the IEEE Journal of Solid-State Circuits from 2013 to 2016. He is a former Distinguished Lecturer of the IEEE Solid-State Circuits Society. He served as Associate Editor of the IEEE Journal of Solid-State Circuits (JSSC) and of the IEEE Transactions on Circuits and Systems. He serves on the Technical Program Committee of the European Solid-State Circuits Conference and is chair of the Data Conversion Committee of the International Solid-State Circuits Conference. He formerly served on the Technical Program Committees of the Asian Solid-State Circuits Conference  and the Symposium on VLSI Circuits.
IEEE Energy Storage and Stationary Battery (ESSB) Committee Overview - Slides
Creators: Curtis Ashton
Publisher: name: IEEE
Year: 2019

Webinar
This slide presentation will review the mission and scope of the IEEE PES Energy Storage & Stationary Battery Committee (ESSB). It will include an overview of the work conducted by each of the groups who report to the larger technical committee from the current ESSB Chair, Curtis Ashton. It will also include information on how to get involved.
Nonconvex Optimization via MM Algorithms: Convergence Theory
Creators: name: Lange, Kenneth
name: Won, Joong-Ho
name: Landeros, Alfonso
name: Zhou, Hua
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Computation (stat.CO)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: The majorization-minimization (MM) principle is an extremely general framework for deriving optimization algorithms. It includes the expectation-maximization (EM) algorithm, proximal gradient algorithm, concave-convex procedure, quadratic lower bound algorithm, and proximal distance algorithm as special cases. Besides numerous applications in statistics, optimization, and imaging, the MM principle finds wide applications in large scale machine learning problems such as matrix completion, discriminant analysis, and nonnegative matrix factorizations. When applied to nonconvex optimization problems, MM algorithms enjoy the advantages of convexifying the objective function, separating variables, numerical stability, and ease of implementation. However, compared to the large body of literature on other optimization algorithms, the convergence analysis of MM algorithms is scattered and problem specific. This survey presents a unified treatment of the convergence of MM algorithms. With modern applications in mind, the results encompass non-smooth objective functions and non-asymptotic analysis.
description: 33 pages
UPV at CheckThat! 2021: Mitigating Cultural Differences for Identifying Multilingual Check-worthy Claims
Creators: name: Schlicht, Ipek Baris
name: de Paula, Angel Felipe Magnossão
name: Rosso, Paolo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences
subject: I.7; J.4

description: Identifying check-worthy claims is often the first step of automated fact-checking systems. Tackling this task in a multilingual setting has been understudied. Encoding inputs with multilingual text representations could be one approach to solve the multilingual check-worthiness detection. However, this approach could suffer if cultural bias exists within the communities on determining what is check-worthy.In this paper, we propose a language identification task as an auxiliary task to mitigate unintended bias.With this purpose, we experiment joint training by using the datasets from CLEF-2021 CheckThat!, that contain tweets in English, Arabic, Bulgarian, Spanish and Turkish. Our results show that joint training of language identification and check-worthy claim detection tasks can provide performance gains for some of the selected languages.
description: 11 pages, 2 figures. Link to the original paper: http://ceur-ws.org/Vol-2936/paper-36.pdf
Time-Based Circuits - not just the Single Slope! Slides
Creators: Matt Straayer
Publisher: name: IEEE
Year: 2018

SSCS Webinar
This webinar is Part 1 of a two part series. (Part 2 is Applications of Time-based Circuits in Data Conversion, Filtering, and Control)

Part 1 Abstract
Compared to circuits utilizing voltage or current to convey analog signals, time based circuits offer unique attributes, ranging from simple, area efficient quantization to more complex techniques for time based processing such as integration, interpolation, and noise shaping. Although time based circuits are not new, the availability of fast, low power transistors in advanced process nodes, combined with the challenges of traditional analog design techniques, has renewed interest in time as a signal domain both in academia and in industry. This talk will look at some obvious and more subtle differences between voltage and time based circuits, and discuss tradeoffs in the context of application requirements. A few advanced state of the art time based circuits will motivate the audience to consider how time based circuits can be a useful tool for their own designs.

Speaker Biography
Matt Straayer studied electrical engineering at University of Michigan and MIT. Currently he is Executive Director, Advanced Research and Development at Maxim, where his group develops architectures and enabling IP for a wide range of products and applications. His experiences include MEMS, RF, frequency generation, data converters, and power, and has found a valuable role for time based circuits in each of these areas.
New method to evaluate divergent series via the Wigner function
Creators: name: Moya-Cessa, Héctor
name: León-Montiel, Roberto de Jesús
name: Martí-Panameño, Erwin A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown how a physical function, namely the Wigner function, that in principle may be measured, can be used to evaluate divergent series.
description: 2 pages, no figures
Approximating Langevin Monte Carlo with ResNet-like neural network architectures
Creators: name: Eigel, Martin
name: Miranda, Charles
name: Schütte, Janina
name: Somme, David
Publisher: name: Weierstrass Institute
Year: 2023
Subjects: subject: 62F15
subject: 65N75
subject: 65C30
subject: 60H35
subject: 62H12
subject: 65C05
subject: 68T07

description: We sample from a given target distribution by constructing a neural network which maps samples from a simple reference, e.g. the standard normal distribution, to samples from the target. To that end, we propose using a neural network architecture inspired by the Langevin Monte Carlo (LMC) algorithm. Based on LMC perturbation results, we show approximation rates of the proposed architecture for smooth, log-concave target distributions measured in the Wasserstein-2 distance. The analysis heavily relies on the notion of sub-Gaussianity of the intermediate measures of the perturbed LMC process. In particular, we derive bounds on the growth of the intermediate variance proxies under different assumptions on the perturbations. Moreover, we propose an architecture similar to deep residual neural networks and derive expressivity results for approximating the sample to target distribution map.
Unified and Multilingual Author Profiling for Detecting Haters
Creators: name: Schlicht, Ipek Baris
name: de Paula, Angel Felipe Magnossão
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: This paper presents a unified user profiling framework to identify hate speech spreaders by processing their tweets regardless of the language. The framework encodes the tweets with sentence transformers and applies an attention mechanism to select important tweets for learning user profiles. Furthermore, the attention layer helps to explain why a user is a hate speech spreader by producing attention weights at both token and post level. Our proposed model outperformed the state-of-the-art multilingual transformer models.
description: 9 pages, 2 figures, see the original paper: http://ceur-ws.org/Vol-2936/paper-157.pdf
Chip-to-Chip Wireline Communication Slides
Creators: Frank O'Mahony
Publisher: name: IEEE
Year: 2018

ISSCCedu Training
Abstract
This presentation is an introduction to chip-to-chip wireline communication. It starts by discussing how wireline links, or SerDes, are used within data center and supercomputer applications. It summarizes the data rate scaling trend for several SerDes industry standards and explains why per-lane data rates have scaled exponentially over the past two decades. Next it introduces the concept of channel characteristics in the frequency and time domains and provides an overview of common SerDes link architectures focusing on equalization techniques. It discusses the primary tradeoffs for scaling data rate, including interconnect distance, channel loss and power. The presentation then introduces several emerging trends in SerDes architecture, including PAM-4 modulation and analog-to-digital converter (ADC)-based receivers. It concludes by providing examples of SerDes transceivers from ISSCC 2018 that cover a range of data rates (up to 112Gb s), interconnect reach and architectures.

Speaker Biography
Frank currently leads the I O Circuit Technology group within Advanced Design at Intel in Hillsboro, Oregon, where he is a Senior Principal Engineer. His group develops the first wireline I O circuits for each new CMOS process technology. From 2003 until 2011 he was a member of the Signaling Research group in Intel�s Circuit Research Lab. His research interests include high-speed and low-power transceivers, clock generation and distribution, equalization, analog circuit scaling, and on-die measurement techniques. Frank received the BS, MS, and PhD degrees in electrical engineering from Stanford University. Frank is currently the chair of the ISSCC Wireline Subcommittee and previously served as an Associate Editor for TCAS-I. Since 2003 he has published over 40 papers in peer-reviewed conferences and journals on the topic of wireline transceivers and clocking. He has received the ISSCC Jack Kilby Award, IEEE Journal on Solid-State Circuits Best Paper Award and TCAS Darlington Best Paper Award. He has also served as an IEEE Distinguished Lecturer.
Localization properties of a tight-binding electronic model on the Apollonian network
Creators: name: Cardoso, Ariston L.
name: Andrade, Roberto F. S.
name: Souza, André M. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: An investigation on the properties of electronic states of a tight-binding Hamiltonian on the Apollonian network is presented. This structure, which is defined based on the Apollonian packing problem, has been explored both as a complex network, and as a substrate, on the top of which physical models can defined. The Schrodinger equation of the model, which includes only nearest neighbor interactions, is written in a matrix formulation. In the uniform case, the resulting Hamiltonian is proportional to the adjacency matrix of the Apollonian network. The characterization of the electronic eigenstates is based on the properties of the spectrum, which is characterized by a very large degeneracy. The $2π/3$ rotation symmetry of the network and large number of equivalent sites are reflected in all eigenstates, which are classified according to their parity. Extended and localized states are identified by evaluating the participation rate. Results for other two non-uniform models on the Apollonian network are also presented. In one case, interaction is considered to be dependent of the node degree, while in the other one, random on-site energies are considered.
description: 7pages, 7 figures
Effect of long-range hopping on Tc in a two-dimensional Hubbard-Holstein model of the cuprates
Creators: name: Khatami, E.
name: Macridin, A.
name: Jarrell, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effect of long-range hoppings on Tc for the two-dimensional (2D) Hubbard model with and without Holstein phonons using parameters evaluated from band-structure calculations for cuprates. Employing the dynamical cluster approximation (DCA) with a quantum Monte Carlo (QMC) cluster solver for a 4-site cluster, we observe that without phonons, the long-range hoppings, t' and t'', generally suppress Tc. We argue that this trend remains valid for larger clusters. In the presence of the Holstein phonons, a finite t' enhances Tc in the under-doped region for the hole-doped system, consistent with local-density approximation (LDA) calculations and experiment. This is interpreted through the suppression of antiferromagnetic (AF) correlations and the interplay between polaronic effects and the antiferromagnetism.
description: 5 pages, 4 figures
TESC 2019 - Visions for Participation
Creators: Farrokh Albuyeh
David Holmberg
Tom McDermott
Publisher: name: IEEE
Year: 2019

Technical Session
The Case for Distribution Tagging and Congestion Management in Support of Transactive Energy - In this paper we review the e-tagging and congestion management concepts and will analyze how the same concepts can be adapted for application to the distribution system using D-Tags™. We will also discuss the requirements to further streamline and automate the tagging and congestion management tools for application to distribution grids to support large numbers of DERs and prosumers and many points of entry and delivery for transactions.

Analysis of Residential DER Potential for Grid Service Provision - NIST performed research to study in depth the technical potential of residential devices and systems to supply energy reserves, voltage and frequency support. An evaluation was performed for eleven common household devices/systems based on six indicators of capability: flexibility, availability, fast response, reserves, reactive power, and power level.

Commercial Buildings in Transactive System Simulations - This presentation will describe two approaches to improve the modeling of buildings and lower the barrier for their participation in transactive energy systems. First, a streamlined model building approach that starts with eQuest, which is more accessible to industry than EnergyPlus, will be described. Second, a Modelica-based dynamic model of the HVAC system and other loads that is more accurate for transactive system simulation will be presented.
Security as an extra design constraint to IC design Transcript
Creators: Ingrid Verbauwhede
Publisher: name: IEEE
Year: 2018

ISSCCedu Training
Abstract
For the last 20 years or so we have been designing for low power, for the next 20 years we will be designing for security. Indeed, security adds an extra design dimension, and optimizing for security is different from optimizing for power, area or throughput. It is important for IOT, mobile and cloud applications. For each of the application domains, it is important to first define the security target, otherwise stated, define the attacker model. Next, security is considered at every design abstraction layer, from applications down to technology. Because missing one link will break the security chain.

Speaker Biography
Dr. Ir. Ingrid Verbauwhede is a Professor in the research group COSIC of the Electrical Engineering Department of the KU Leuven. She is also adjunct professor at the University of California Los Angeles. At COSIC, she leads the embedded systems and hardware group. She joined KU Leuven in 2003 and UCLA in 1998. She is a Member of IACR and a fellow of IEEE.
She was elected as member of the Royal Flemish Academy of Belgium for Science and the Arts in 2011. She is a recipient of an ERC Advanced Grant in 2016 and received the IEEE 2017 Computer Society Technical Achievement Award.
She is a pioneer in the field of efficient and secure implementations of cryptographic algorithms in embedded context on ASIC, FPGA and embedded SW. She is the author and co-author of more than 300 publications at conferences, journals, book chapters and books. She graduated 34 PhD students since 2004. They now have positions in academia and industry, all over the world. Her list of publications and patents is available at www.esat.kuleuven.be/cosic/publications
Dark Matter, Cosmic Positrons in Alpha Magnetic Spectrometer Experiment and Particle-Cosmology with Yang-Mills Gravity
Creators: name: Hsu, Jong-Ping
name: Hsu, Leonardo
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss a model of dark matter consisting of high energy anti-electron-neutrinos with leptonic force, which is produced by the conserved leptonic charge $g_\ell$ associated with Lee-Yang's $U_1$ gauge symmetry. Based on particle-cosmology for early universe, the high energy neutrino (HEN) model of dark matter assumes that the neutron decay processes, $n\to p^+ + e^- +\ovν_e$, dominate the epoch after the creation, collision and confinement processes of quarks and antiquarks in the beginning. The HEN model implies the following results: There are almost equal numbers of electrons, protons and anti-electron-neutrinos dominated the matter cosmos. There are unobservable and ubiquitous anti-electron-neutrinos $\ovν_e$ with leptonic charge $g_\ell$ in the universe. Although the total mass of anti-electron-neutrino dark matter is negligible in the universe, its enhanced gravitational and leptonic forces could lead to the observed flat rotation curves due to relativistic $\ovν_e$, whose static force involves a factor $E_ν/m_ν\approx 10^6$. We estimate the leptonic charge to be $g_\ell \approx 7 \times 10^{-21}$. The model predicts that the anti-electron-neutrino dark matter can interact with cosmic-ray protons to produce positrons, i.e. $\ovν_e + p^+ \to e^+ +n$, through weak interaction of the unified electroweak theory. The anti-electron-neutrino dark matter sheds light on the Alpha Magnetic Spectrometer (AMS) experiment, which has detected the intriguing excess of cosmic-ray positrons over what is expected. The HEN model of dark matter suggests an experimental test of the new Lee-Yang force between electrons by using modern precision Cavendish experiment.
description: 25 pages
Metric connections in projective differential geometry
Creators: name: Eastwood, Michael
name: Matveev, Vladimir S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Differential Geometry (math.DG)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 53A20

description: We search for Riemannian metrics whose Levi-Civita connection belongs to a given projective class. Following Sinjukov and Mikes, we show that such metrics correspond precisely to suitably positive solutions of a certain projectively invariant finite-type linear system of partial differential equations. Prolonging this system, we may reformulate these equations as defining covariant constant sections of a certain vector bundle with connection. This vector bundle and its connection are derived from the Cartan connection of the underlying projective structure.
description: 10 pages
Matter Coupling to Strong Electromagnetic Fields in Two-Level Quantum Systems with Broken Inversion Symmetry
Creators: name: Kibis, O. V.
name: Slepyan, G. Ya.
name: Maksimenko, S. A.
name: Hoffmann, A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We demonstrate theoretically the parametric oscillator behavior of a two-level quantum system with broken inversion symmetry exposed to a strong electromagnetic field. A multitude of resonance frequencies and additional harmonics in the scattered light spectrum as well as altered Rabi frequency are predicted to be inherent to such systems. In particular, dipole radiation at the Rabi frequency appears to be possible. Since the Rabi frequency is controlled by the strength of coupling electromagnetic field, the effect can serve for the frequency-tuned parametric amplification and generation of electromagnetic waves. Manifestation of the effect is discussed for III-nitride quantum dots with strong build-in electric field breaking the inversion symmetry. Terahertz emission from arrays of such quantum dots is shown to be experimentally observable.
description: Journal version
Unifying distribution functions: some lesser known distributions
Creators: name: Moya-Cessa, J. R.
name: Moya-Cessa, H.
name: Berriel-Valdos, L. R.
name: Aguilar-Loreto, O.
name: Barberis-Blostein, P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We show that there is a way to unify distribution functions that describe simultaneously a signal in space and (spatial) frequency. Probably the most known of them is the Wigner distribution function. Here we show how to unify functions of the Cohen class, Rihacek's complex energy function, Husimi and Glauber-Sudarshan distribution functions.
description: 7 pages
Hyperfine Suppression of $2^3{\rm S}_1 - 3^3{\rm P}_J$ Transitions in $^3$He
Creators: name: Sulai, I. A.
name: Wu, Qixue
name: Bishof, M.
name: Drake, G. W. F.
name: Lu, Z. -T.
name: Mueller, P.
name: Santra, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Two anomalously weak transitions within the $2 ^3{\rm S}_1~-~3 ^3{\rm P}_J$ manifolds in $^3$He have been identified. Their transition strengths are measured to be 1,000 times weaker than that of the strongest transition in the same group. This dramatic suppression of transition strengths is due to the dominance of the hyperfine interaction over the fine structure interaction. An alternative selection rule based on \textit{IS}-coupling (where the nuclear spin is first coupled to the total electron spin) is proposed. This provides qualitative understanding of the transition strengths. It is shown that the small deviations from the \textit{IS}-coupling model are fully accounted for by an exact diagonalization of the strongly interacting states.
description: 4 Pages, 2 figures, 1 table. Accepted for publication in PRL
Spin polarization control through resonant states in an Fe/GaAs Schottky barrier
Creators: name: Honda, S.
name: Itoh, H.
name: Inoue, J.
name: Kurebayashi, H.
name: Trypiniotis, T.
name: Barnes, C. H. W.
name: Hirohata, A.
name: Bland, J. A. C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Spin polarization of the tunnel conductivity has been studied for Fe/GaAs junctions with Schottky barriers. It is shown that band matching of resonant interface states within the Schottky barrier defines the sign of spin polarization of electrons transported through the barrier. The results account very well for experimental results including the tunneling of photo-excited electrons, and suggest that the spin polarization (from -100% to 100%) is dependent on the Schottky barrier height. They also suggest that the sign of the spin polarization can be controlled with a bias voltage.
description: 5 pages, 4 figures
J/psi production at the Tevatron and RHIC from s-channel cut
Creators: name: Lansberg, J. P.
name: Haberzettl, H.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We report on our recent evaluation of the s-channel cut contribution to J/psi hadroproduction. We show that it is likely significantly larger than the usual cut contribution of the colour-singlet model (CSM), which is known to underestimate the experimental measurements. Here the s-channel cut develops for configurations with off-shell quarks in the bound state. A correct treatment of its contribution requires the introduction of a four point function, partially constrained by gauge invariance and limiting behaviours at small and large momenta. When the unconstrained degrees of freedom are fixed to reproduce the Tevatron data, we show that RHIC data are remarkably well reproduced down to very low transverse momenta P_T without need of resummation of initial-state gluon effects. This unique feature might be typical of s-channel cut contribution.
description: Presented by J.P. Lansberg at the Joint Meeting Heidelberg-Liege-Paris-Wroclaw (HLPW08), Spa, Belgium, 6-8 March 2008, 10 pages, 8 figures, LaTeX, uses aip-6s.clo, aipproc.cls and aipxfm.sty (included)
2020 PES GM Tutorial Series: Grid_Energy Storage Technology and Applications, Session 4: A Closer Look at Safety, Codes and Regulations
Creators: Babu Chalamala
Jim McDowall
Vince Sprenkle
Chris Searles
Publisher: name: IEEE
Year: 2020

This multi-presenter tutorial covers the basics of electrical energy storage (primarily for the grid), including the factors driving the need for electrical energy storage; the various energy storage applications; various present and potential future battery energy storage technologies (BESS), e.g., Li-based, advanced lead-acid, flow batteries, sodium-based batteries, metal-air batteries, and zinc-based rechargeable batteries; commissioning of energy storage systems; engineering of energy storage systems, interconnection with the grid (e.g., IEEE 1547); energy management systems, commissioning, system safety and reliability, and finally, code compliance.
This multi-presenter tutorial covers the basics of electrical energy storage (primarily for the grid), including the factors driving the need for electrical energy storage; the various energy storage applications; various present and potential future battery energy storage technologies (BESS), e.g., Li-based, advanced lead-acid, flow batteries, sodium-based batteries, metal-air batteries, and zinc-based rechargeable batteries; commissioning of energy storage systems; engineering of energy storage systems, interconnection with the grid (e.g., IEEE 1547); energy management systems, commissioning, system safety and reliability, and finally, code compliance.
Preparation of Metal Mixed Plastic Superconductors: Electrical Properties of Tin-Antimony Thin Films on Plastic Substrates
Creators: name: Stephenson, Andrew P.
name: Divakar, Ujjual
name: Micolich, Adam P.
name: Meredith, Paul
name: Powell, Ben J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Metal mixed polymers are a cheap and effective way to produce flexible metals and superconductors. As part of an on-going effort to learn how to tune the properties of these systems with ion implantation, we present a study of the electrical properties of these systems prior to metal-mixing. We show that the electrical properties of tin-antimony thin films are remarkably robust to variations in the substrate morphology. We demonstrate that the optical absorbance of the films at a fixed wavelength provides a reliable and reproducible characterization of the relative film thickness. We find that as the film thickness is reduced, the superconducting transition in the unimplanted thin films is broadened, but the onset of the transition remains at ~3.7 K, the transition temperature of bulk Sn. This is in marked contrast to the behavior of metal mixed films, which suggests that the metal mixing process has a significant effect of the physics of the superconducting state beyond that achieved by reducing the film thickness alone.
description: 7 pages, 8 figures; accepted for publication in J. Appl. Phys
Quantum theory of ultracold atom-ion collisions
Creators: name: Idziaszek, Zbigniew
name: Calarco, Tommaso
name: Julienne, Paul S.
name: Simoni, Andrea
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We study atom-ion scattering in the ultracold regime. To this aim, an analytical model based on the multichannel quantum defect formalism is developed and compared to close-coupled numerical calculations. We investigate the occurrence of magnetic Feshbach resonances focusing on the specific 40Ca+ - Na system. The presence of several resonances at experimentally accessible magnetic fields should allow the atom-ion interaction to be precisely tuned. A fully quantum-mechanical study of charge exchange processes shows that charge-exchange rates should remain small even in the presence of resonance effects. Most of our results can be cast in a system-independent form and are important for the realization of the charge-neutral ultracold systems.
description: 5 pages,3 figures, RevTex; minor corrections to the text, references added
Minimal Energy Cost for Thermodynamic Information Processing: Measurement and Information Erasure
Creators: name: Sagawa, Takahiro
name: Ueda, Masahito
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The fundamental lower bounds of the thermodynamic energy cost (work) needed for the measurement and the erasure of information are found. The lower bound for the erasure vindicates the "Landauer's principle" for a special case, but otherwise implies its breakdown, indicating that no unique relationship exists between logical reversibility and physical one. Our results constitute the second law of "information thermodynamics", in which the information content and thermodynamic variables are treated on an equal footing.
The Impact of Grid Codes and the Energy Transition on Synchronous Generators - Slide presentation
Creators: Kevin Chan
Les M. Hajagos
Ana Joswig
Luis Ruoco
Publisher: name: IEEE
Year: 2019

Grid operators are specifying more stringent requirements for synchronous generators to safeguard power network operational integrity and stability as worldwide energy transitions are occurring to accommodate large scale integration of renewable energy sources.
Hence owners and other stakeholders responsible for specifying generators and excitation systems need to take special care to ensure that equipment will be grid code compliant and avoid serious financial consequences.
This webinar presents a summary of the findings of an IEEE PES Electric Machines Committee (EMC) task force which was established to investigate and report on impacts of worldwide grid code changes on generator standards.
The following key subject areas will be included:
1. Generator capability envelope and design challenges.
2. System fault related requirements.
3. Generator excitation systems.
4. Operating new and existing generators to support the energy transition.
Panelists:
Robert Thornton-Jones (moderator)
Ana Joswig
Kevin Chan
Les Hajagos
Luis Ruoco
(on behalf of the Task Force on Grid Code Impacts on Machine Standards, part of the Generator Subcommittee within the IEEE PES Electric Machinery Committee)

Grid operators are specifying more stringent requirements for synchronous generators to safeguard power network operational integrity and stability as worldwide energy transitions are occurring to accommodate large scale integration of renewable energy sources. Hence owners and other stakeholders responsible for specifying generators and excitation systems need to take special care to ensure that equipment will be grid code compliant and avoid serious financial consequences.

This webinar presentation gives a summary of the findings of an IEEE PES Electric Machines Committee (EMC) task force which was established to investigate and report on impacts of worldwide grid code changes on generator standards.

The following key subject areas will be included:

1. Generator capability envelope and design challenges.

2. System fault related requirements.

3. Generator excitation systems.

4. Operating new and existing generators to support the energy transition.

Panelists: Robert Thornton-Jones (moderator), Ana Joswig, Kevin Chan, Les Hajagos, Luis Ruoco (on behalf of the Task Force on Grid Code Impacts on Machine Standards, part of the Generator Subcommittee within the IEEE PES Electric Machinery Committee)
Fourth Family Neutrinos and the Higgs Boson
Creators: name: Cuhadar-Donszelmann, T.
name: Unel, M. Karagoz
name: Ozcan, V. E.
name: Sultansoy, S.
name: Unel, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the LHC discovery potential for the fourth family Standard Model neutrinos in the process $pp\to Z/h\toν_{4}{\barν_{4}}\to WμWμ$. We show that, depending on their masses, the simultaneous discovery of both the Higgs boson and the heavy neutrinos is probable at early stages of LHC operation. Results are presented for both Majorana and Dirac type fourth family neutrinos.
description: 12 pages, uses axodraw.sty, v2: includes typo fixes, improved analysis, v4: minor modifications in response to the JHEP referee
Overview of IEEE PES Technical Committees - Slides
Creators: Farnoosh Rahmatian
Publisher: name: IEEE
Year: 2019

In an effort to provide more information to those who are PES members looking to make the most out of their membership by getting involved in a technical committee (or two or three) or to reach those who are not yet PES members; Farnoosh Rahmatian, VP of Technical Activities for the Power & Energy Society will be giving a high-level overview of where individuals can go to learn more about each of the 17 technical committees and 3 coordinating committees. You�ll also learn more about what PES can offer you.
In an effort to provide more information to those who are PES members looking to make the most out of their membership by getting involved in a technical committee (or two or three) or to reach those who are not yet PES members; Farnoosh Rahmatian, VP of Technical Activities for the Power & Energy Society will be giving a high-level overview of where individuals can go to learn more about each of the 17 technical committees and 3 coordinating committees. You�ll also learn more about what PES can offer you. - Slide
title: Front Matter, Table of Contents, Preface, Conference Organization
Creators: name: Fernández, Maribel
name: Muscholl, Anca
Publisher: name: Schloss Dagstuhl – Leibniz-Zentrum für Informatik
Year: 2020
Subjects: subject: Front Matter
subject: Table of Contents
subject: Preface
subject: Conference Organization
subject: Theory of computation → Logic

description: Front Matter, Table of Contents, Preface, Conference Organization
description: LIPIcs, Vol. 152, 28th EACSL Annual Conference on Computer Science Logic (CSL 2020), pages 0:i-0:xviii