cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Edward T. Cockcroft House
Creators: name: Weber, Harvey A.
Publisher: name: Unknown
Year: 1970
Subjects: Photographs
Photos
Historic buildings
East Hampton
Structures
Dwellings

description: This image shows the Edward T. Cockcroft House located on Lily Pond Lane. This image was taken by photographer Harvey A. Weber (1917-1991) and is part of the East Hampton’s Heritage Photo Collection.
description: Images within East Hampton Heritage Photo Collection seem to have been taken or collected in relation to the East Hampton Heritage project, but not all of them were included in the final publication. Several photographer are included in this collection.
A model for full local image interpretation
Creators: name: Ben-Yosef, Guy
name: Assif, Liav
name: Harari, Daniel
name: Ullman, Shimon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We describe a computational model of humans' ability to provide a detailed interpretation of components in a scene. Humans can identify in an image meaningful components almost everywhere, and identifying these components is an essential part of the visual process, and of understanding the surrounding scene and its potential meaning to the viewer. Detailed interpretation is beyond the scope of current models of visual recognition. Our model suggests that this is a fundamental limitation, related to the fact that existing models rely on feed-forward but limited top-down processing. In our model, a first recognition stage leads to the initial activation of class candidates, which is incomplete and with limited accuracy. This stage then triggers the application of class-specific interpretation and validation processes, which recover richer and more accurate interpretation of the visible scene. We discuss implications of the model for visual interpretation by humans and by computer vision models.
description: Published in the Proceedings of the 37th Annual Meeting of the Cognitive Science Society (CogSci), 2015
On solutions to the non-Abelian Hirota-Miwa equation and its continuum limits
Creators: name: Li, C. X.
name: Nimmo, J. J. C.
name: Tamizhmani, K. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: In this paper, we construct grammian-like quasideterminant solutions of a non-Abelian Hirota-Miwa equation. Through continuum limits of this non-Abelian Hirota-Miwa equation and its quasideterminant solutions, we construct a cascade of noncommutative differential-difference equations ending with the noncommutative KP equation. For each of these systems the quasideterminant solutions are constructed as well.
description: 9 pages, 1 figure
Staff Perceptions of how Human Resource Management Practices influence Organisational Performance: Mediating roles of Organisational Culture, Employees’ Commitment and Employee Retention in Bahrain Private Universities
Creators: name: Abu Keir, Mohammed Youssif
Publisher: name: Cardiff Metropolitan University
Year: 2022
Subjects: Educational administration, management and leadership

description: Recently in Bahraini private universities there has been an increased focus on the importance of HR practices. This research examined the link between HR practices and staff perceptions of organisational performance. The research explored staff perceptions of the link directly and also examined the effect of mediating variables â€“ organisational culture, employee commitment and employee retention. The researcher developed a model, based on an extensive review of the literature and using the resource-based view and contingency theory. Within the model a set of HRM practices and mediators including organisational culture were suggested as determinants of organisational performance. A set of research hypotheses concerning the links between variables were formulated. Data was gathered using a set of questionnaires to measure staff perceptions. The questionnaires were designed to take cultural considerations into account and the survey was conducted ethically and objectively. The questionnaire survey was targeted at 300 academic and administrative staff employed by five Bahraini private universities. Stratified sampling was used and two hundred and eighty usable responses were received. The results were analysed to determine the relationship between variables in the model using PLS (Partial Least Squares). SPSS (Statistical Package for Social Sciences) was used for statistical analysis of the responses to the questionnaire which gave further insights into the use of specific HR practices. The research findings indicated that there was a direct relationship between HR practices and staff perceptions of organisational performance and this was also mediated by organisational culture, employee retention and employee commitment. This study contributes to the body of knowledge of HRM by providing new insights into the interplay between adoption of SHRM practices and organisational performance of private universities in a developing country. This contributes to the literature on the effects of HRM on organisational performance, which are currently drawn mainly from a Western context
Solar Load Cycles and Storage Requirements
Creators: Doug Houseman and Vadim Zheglov
Publisher: name: IEEE
Year: 2017

Newsletter
Most discussion of how using solar photovoltaic cells to account for most electricity generation has focused on the daily cycle of load versus the daily generation cycle. That cycle has been heavily analyzed, and there are a large number of companies working on local and neighborhood storage to support the daily cycle. But there is a much longer cycle that gets little attention and has a much larger impact on the cost of investment and on the efficient use of the solar generation. Simulations based on data from four major U.S. grid systems show that long-term storage needs will be large. This is but one of many scenarios that need to be explored.
title: Typical imaging findings in spindle cell lipoma (SCL)
Creators: name: Ribeiro, Rui
Publisher: name: EURORAD
Year: 2025
Subjects: subject: Musculoskeletal system
subject: Musculoskeletal soft tissue
subject: CT
subject: MR
subject: Neoplasia
subject: Clinical Case

description: Clinical History: A 46-year-old man with a previous history of right nephrectomy due to complicated chronic hydronephrosis from urolithiasis was referred to our institution due to a painless, progressively enlarging swelling on the back. On examination, a palpable and mobile swelling was seen in the back on the right at the thoracolumbar level.

description: 46 years, male
Edison''s Revenge: Could DC Carve Out a Place in our AC Grids?
Creators: Steven E. Collier
Publisher: name: IEEE
Year: 2017

Newsletter
George Westinghouse and Nikola Tesla won the war of currents a century ago, but Thomas Edison may have the last word. Profoundly new circumstances and revolutionary new technologies favor direct current in addition to or even instead of alternating current power for many applications.
IC-UA: seis anos em revista (2015-2021) | Diálogos Interculturais Portugal-China 1 e 2
Creators: name: Instituto Confúcio Da UA, Fénix Revista Dos Amigos Do
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Instituto Confúcio da Universidade de Aveiro: seis anos de intensa atividade, nos domínios do ensino, da cultura e da investigação
Creators: name: Instituto Confúcio Da UA, Fénix Revista Dos Amigos Do
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Fiscal Policy Announcements of Italian Governments and Spread Reaction during the Sovereign Debt Crisis
Creators: name: Falagiarda, Matteo
name: Gregori, Wildmer Daniel
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: SECS-P/01 Economia politica

description: This paper attempts to evaluate the effects of fiscal policy announcements by the Italian government on the long-term sovereign bond spread of Italy relative to Germany. After collecting data on relevant fiscal policy announcements, we perform an econometric comparative analysis between the three cabinets that followed one another during the period 2009-2013. The results suggest that only fiscal policy announcements made by members of Monti's cabinet have been effective in influencing the Italian spread, revealing a remarkable credibility gap between Monti's technocratic administration and Berlusconi's and Letta's governments.
Pós-Manchúria
Creators: name: Santos, André Saraiva
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Charge transport properties of organic conjugated polymers for photovoltaic applications
Creators: name: Righi, Sara <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: CHIM/05 Scienza e tecnologia dei materiali polimerici

description: Charge transport in conjugated polymers as well as in bulk-heterojunction (BHJ) solar cells made of blends between conjugated polymers, as electron-donors (D), and fullerenes, as electron-acceptors (A), has been investigated.
It is shown how charge carrier mobility of a series of anthracene-containing poly(p-phenylene-ethynylene)-alt-poly(p-phenylene-vinylene)s (AnE-PVs) is highly dependent on the lateral chain of the polymers, on a moderate variation of the macromolecular parameters (molecular weight and polydispersity), and on the processing conditions of the films. For the first time, the good ambipolar transport properties of this relevant class of conjugated polymers have been demonstrated, consistent with the high delocalization of both the frontier molecular orbitals.
Charge transport is one of the key parameters in the operation of BHJ solar cells and depends both on charge carrier mobility in pristine materials and on the nanoscale morphology of the D/A blend, as proved by the results here reported. A straight correlation between hole mobility in pristine AnE-PVs and the fill factor of the related solar cells has been found. 
The great impact of charge transport for the performance of BHJ solar cells is clearly demonstrated by the results obtained on BHJ solar cells made of neat-C70, instead of the common soluble fullerene derivatives (PCBM or PC70BM). The investigation of neat-C70 solar cells was motivated by the extremely low cost of non-functionalized fullerenes, compared with that of their soluble derivatives (about one-tenth). For these cells, an improper morphology of the blend leads to a deterioration of charge carrier mobility, which, in turn, increases charge carrier recombination. Thanks to the appropriate choice of the donor component, solar cells made of neat-C70 exhibiting an efficiency of 4.22% have been realized, with an efficiency loss of just 12% with respect to the counterpart made with costly PC70BM.
Impressões de Macau
Creators: name: Bernardo, Matilde Paula
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Effetti dell’introduzione dei Principi contabili internazionali sul principio di derivazione del reddito d’impresa dal risultato di bilancio
Effect to introduction of IAS/IFRS on the derivation principle of corporate income to financial accounting
Creators: name: Silvestri, Leonardo <1971>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2014
Subjects: IUS/12 Diritto tributario

description: Con il presente lavoro si è tentato di verificare se le ragioni che hanno portato l’ordinamento italiano ad adottare il principio della derivazione del reddito d'impresa dal risultato contabile, possano essere considerate ancora attuali alla luce dell'introduzione dei principi IAS/IFRS nel nostro sistema contabile. In particolare, si è cercato di esaminare se questo collegamento ai principi contabili internazionali, introdotto nel nostro ordinamento anche per la redazione dei bilanci d'esercizio, abbia comportato il venir meno della neutralità dell'imposizione fiscale tra le società cd. Ias adopter e no Ias adopter. L'analisi di questa problematica è stata condotta anche prendendo come riferimento le modalità di recepimento delle opzioni contenute nel Regolamento n. 1606/2002 da parte dei legislatori di alcuni Stati europei, e valutando se le conseguenze fiscali emergenti tra i vari ordinamenti possano creare possibili distorsioni alla concorrenza ed alle libertà fondamentali dell’Unione europea.
description: With the present work we have tried to analyze whether the reasons that led the Italian fiscal system to adopt the derivation's principle of corporate income to financial accounting, they can be considered still relevant today, especially in light of the introduction in our accounting system of International Accounting Standards. In particular, we have tried to examine whether this link to IAS/IFRS, which was introduced in our system for the annual financial statements, may have led to the neutrality of loss taxation between companies Ias adopter e no Ias adopter. The analysis of this issue was also carried out by evaluating the transposition's manner of the options contained in Regulation no. 1606/2002 by legislators some of the European states, verifying too whether tax consequences emerging between the various jurisdictions can create potential distortions to competition and the fundamental freedoms of the European Union.
Um olhar sobre o papel do IC-UA, por Luís Castro
Creators: name: Castro, Luís
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
NREL''s Energy Systems Integration Facility
Creators: Benjamin Kroposki and Jim Reilly
Publisher: name: IEEE
Year: 2017

Newsletter
The Energy Systems Integration Facility (ESIF) will be the first laboratory in the world to enable smart grid equipment to be tested on a plug-and-play basis at megawatt levels. Newly invented equipment will be evaluated for compatibility with existing and future technology, and for robustness under varied operating conditions. A high-performance computer will allow for simulations and a SCADA system will monitor and control facility-based processes and gather and disseminate real time data for collaboration and visualization.
Good Prospects for Smart Grid Job Seekers
Creators: Heather Anusbigian
Publisher: name: IEEE
Year: 2017

Newsletter
Our latest smart grid hiring survey finds that it is still a seller's market: Companies are having to offer more in terms of salary and bonuses to obtain the recruits they want and need; at the same time, they are expecting more of candidates both those coming straight out of school and those with some professional experience.
Vem aprender chinês! - apresentar-se
Creators: name: Mai, Ran
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Observations on Engineered Resiliency to Mitigate Physical Damage to Grid Assets
Creators: Erich Gunther
Publisher: name: IEEE
Year: 2017

Newsletter
There has been renewed attention to a substation attack that occurred almost a year ago but remains unsolved. We should not forget that the local grid withstood the attack with nary a blink of the lights, and that power systems are broadly engineered to withstand such incidents. We can make them even more resilient. Distributed generation and microgrids will help.
Língua chinesa
Creators: name: Mai, Ran
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
O futebol em Macau: entre a realidade e o futuro
Creators: name: Leite Jr., Emanuel
name: Rodrigues, Carlos
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
It is Time for Power Market Reform to Allow for Retail Customer Participation and Distribution Network Marginal Pricing
Creators: Michael C. Caramanis
Publisher: name: IEEE
Year: 2017

Newsletter
The introduction of distribution-level marginal prices promises to have transformational impacts on power systems in terms of electricity costs, infrastructure resilience and the wide integration of renewable generation and sustainable new loads such as the electric vehicles. But to achieve the full range of potential benefits, it will be essential to adopt the right pricing structures and market reforms.
A gastronomia dos descobrimentos: Macau, um laboratório de experiências culinárias
Creators: name: Barroqueiro, Deana
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Através de uma sábia combinação de ingredientes e técnicas culinárias de vários continentes, graças à influência dos portugueses, no período da Expansão Marítima de Portugal até a Pestana do Mundo, Macau fez-se uma encruzilhada de múltiplos sabores, transformando a sua cozinha numa gastronomia ímpar, onde o Ocidente se casa harmoniosamente com o Oriente, para maior delícia e felicidade dos gourmets.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Macau: um destino multifacetado e multicultural
Creators: name: Breda, Zélia
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Macau, enquanto destino turístico, tem vindo a ganhar destaque no panorama internacional. O pequeno território, apelidado de “Monte Carlo do Oriente ou “Las Vegas da Ásia”, tem muito para oferecer no contexto do turismo. Grande parte do fascínio por Macau reside nos vestígios do encontro entre as culturas ocidental e oriental ao longo de mais de quatro séculos. Com o desenvolvimento do território e o rápido crescimento do turismo, em muito devido à indústria do jogo, estarão esses vestígios em risco?
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
CPS Testbeds: Energizing a Cybersecure Smart Grid
Creators: Manimaran Govindarasu
Adam Hahn and Chen-Ching Liu
Publisher: name: IEEE
Year: 2017

Newsletter
Current efforts to research cyber security technologies, risk assessment and system hardening techniques are constrained by the availability of realistic test environments. Creating a resilient smart grid requires the availability of cyber-physical system security testbeds for performance and security evaluations in order to achieve sufficient system resiliency.
Time-resolved two-photon interference of weak coherent pulses
Creators: name: Kim, Heonoh
name: Kwon, Osung
name: Moon, Han Seb
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The observation of the Hong-Ou-Mandel (HOM)-type two-photon interference (TPI) has played an important role in the development of photonic quantum technologies. The time-resolved coincidence-detection technique has been effectively used to identify and characterize the TPI phenomena of long-coherence optical fields. Here, we report on the experimental demonstration of the TPI of two phase-randomized weak coherent pulses with time-resolved coincidence detection. The mutual coherence time between the two weak coherent lights is determined by applying a frequency noise to one of the two interfering lights. We analyze the HOM-type TPI-fringe visibility according to the ratio of the coherence time to the pulse duration.
description: 6 pages, 4 figures, Accepted for publication in Appl. Phys. Lett
Three Questions about Physical Grid Security
Creators: Dr. Massoud Amin
Publisher: name: IEEE
Year: 2017

Newsletter
Today the North American electric power system consists of about 15,000 generators, 450,000 miles of high-voltage (100kV or higher) transmission lines, over six million miles of lower-voltage distribution lines and more than 15,000 substations. Last year's attack on a California substation did not awaken concerns about the network's physical security. Here are the three key questions I have been asked repeatedly in the last 13 years, going back to when I directed infrastructure security R&D post 9/11 at the Electric Power Research Institute.
A cooperação Portugal - China na construção da faixa económica da nova rota da seda e a rota da seda marítima do século XXI
Creators: name: Ilhéu, Fernanda
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: O sucesso da viagem do Presidente Xi Jinping a Portugal, e a assinatura do Protocolo de Cooperação entre os governos de Portugal e da China, no quadro da Faixa Económica da Rota Seda e da Nova Rota da Seda Marítima do Século XXI, eleva, de uma forma muito significativa e estruturada, o nível de cooperação entre os dois países. No entanto, as pessoas menos familiarizadas com a iniciativa “Uma Faixa, Uma Rota” têm muita dificuldade em realmente perceber do que se trata e qual o interesse que esta iniciativa poderá ter para o mundo e nomeadamente para Portugal.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Porcelana de encomenda
Creators: name: Mo, Guo
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Os portugueses foram os primeiros ocidentais a encomendar porcela- na à China. As porcelanas de encomenda não só testemunham momentos espantosos, interações comerciais, desenvolvimentos técnicos e flutuações sociais entre a China e Portugal, mas também permitem conhecer melhor a relação intercultural, isto é, o modo como estes dois países confluíram e conviveram, se complementaram e se confrontaram.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Engineering Smart Retail Electricity Markets
Creators: Christof Weinhardt
Publisher: name: IEEE
Year: 2017

Newsletter
Advanced metering infrastructure is a cornerstone of future grids, but the smart grid encompasses much more than the most frequently mentioned features connected with AMI such as increased communication capabilities, monitored infrastructure, improved fault recovery and self-healing capabilities. It also involves completely new processes and schemes to improve economic efficiency in coordinating the interests of all different stakeholders. Through the establishment of well-designed markets on all levels, and on most time horizons, the power system can become more efficient and greener, as well as smarter.
Assessing Market Power in Deregulated Electricity Markets
Creators: Suhonmesh Bose
Chenye Wu
Adam Wierman and Hamed Mohsenian-Rad
Publisher: name: IEEE
Year: 2017

Newsletter
Examples of market manipulation in deregulated power systems abound, and so we need to be able to identify market power and prevent its exercise. Market power analysis needs to be put on a firmer foundation, one that connects short-term and long-term perspectives and takes into account both economic fundamentals and the physical characteristics of transmission systems.
The Stellar Initial Mass Function and Population Properties of M89 from Optical and NIR Spectroscopy: Addressing Biases in Spectral Index Analysis
Creators: name: Lonoce, Ilaria
name: Feldmeier-Krause, Anja
name: Freedman, Wendy L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The complexity of constraining the stellar initial mass function (IMF) in early-type galaxies cannot be overstated, given the necessity of both very high signal-to-noise (S/N) data and the difficulty of breaking the strong degeneracies that occur among several stellar population parameters including age, metallicity and elemental abundances. With this paper, the second in a series, we present a detailed analysis of the biases that can occur when retrieving the IMF shape by exploiting both optical and NIR IMF sensitive spectral indices. As a test case, here we analyze data for the nearby galaxy M89, for which we have high S/N spectroscopic data that cover the 3500-9000Å spectral region and allow us to study the radial variation of the stellar population properties out to 1 R_e. Carrying out parallel simulations that mimic the retrieval of all the explored stellar parameters from a known input model, we quantify the amount of bias at each step of our analysis. From more general simulations we conclude that to accurately retrieve the IMF, it is necessary not only to retrieve accurate estimates of the age and metallicity, but also of all the elemental abundances that the spectral index fits are sensitive to. With our analysis technique applied to M89, we find consistency with a bottom-heavy IMF with a negative gradient from the center to half R_e when using the Conroy et al. 2018 as well as Vazdekis et al. 2016 EMILES stellar population models. We find agreement both with a parallel full spectral fitting of the same data and with literature results.
description: 35 pages, 21 figures. Accepted for publication in ApJ
A Língua Portuguesa em Macau, nos dias de hoje
Creators: name: Bizarro, Rosa
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: No âmbito de um esforço de compreensão do que se passa, na Região Administrativa Especial de Macau (RAEM), nos nossos dias, no que à Língua Portuguesa diz respeito, é nosso intuito partilhar algumas reflexões baseadas, fundamentalmente, numa experiência vivida, ao longo dos últimos sete anos, no Território, e em pesquisas feitas.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Macau: contos e lendas de Alice Vieira
Creators: name: Xavier, Lola
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
On the FP-ghost propagators for Yang-Mills theories and perturbative quantum gravity in the covariant gauge in de Sitter spacetime
Creators: name: Faizal, Mir
name: Higuchi, Atsushi
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The propagators of the Faddeev-Popov (FP) ghosts for Yang-Mills theories and perturbative quantum gravity in the covariant gauge are infrared (IR) divergent in de Sitter spacetime. We point out, however, that the modes responsible for these divergences will not contribute to loop diagrams in computations of time-ordered products in either Yang-Mills theories or perturbative quantum gravity. Therefore we propose that the IR divergent FP-ghost propagator should be regularized by a small mass term that is sent to zero in the end of any perturbative calculations. This proposal is equivalent to using the effective FP-ghost propagators, which we present in an explicit form, obtained by removing the modes responsible for the IR divergences. We also make some comments on the corresponding propagators in anti-de Sitter spacetime.
description: 8 pages, to appear in Phys Rev D
Ground state and edge excitations of quantum Hall liquid at filling factor 2/3
Creators: name: Hu, Zi-Xiang
name: Chen, Hua
name: Yang, Kun
name: Rezayi, E. H.
name: Wan, Xin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a numerical study of fractional quantum Hall liquid at Landau level filling factor $ν=2/3$ in a microscopic model including long-range Coulomb interaction and edge confining potential, based on the disc geometry. We find the ground state is accurately described by the particle-hole conjugate of a $ν=1/3$ Laughlin state. We also find there are two counter-propagating edge modes, and the velocity of the forward-propagating mode is larger than the backward-propagating mode. The velocities have opposite responses to the change of the background confinement potential. On the other hand changing the two-body Coulomb potential has qualitatively the same effect on the velocities; for example we find increasing layer thickness (which softens of the Coulomb interaction) reduces both the forward mode and the backward mode velocities.
description: 12 pages, 13 figures
Camões e a Moça China
Creators: name: Ribeiro, Eduardo
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Structural stability and lattice dynamics of SiO2 cristobalite
Creators: name: Coh, Sinisa
name: Vanderbilt, David
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Among the phases of SiO2 are alpha and beta cristobalites, which have a long and somewhat controversial history of proposed structural assignments and phase-transition mechanisms. Recently, Zhang and Scott found new indications that the higher-temperature beta phase has space group I-42d and, by assuming a group-subgroup relationship between phases, they argued that the lower-temperature alpha phase should have lower symmetry than that of the widely-accepted P4_12_12 space group. With this motivation, we use first-principles calculations to investigate the energy, structure, and local stability of P4_12_12 and I-42d structures. We also compute the frequencies of the zone-center phonon modes in both structures, as well as certain zone-boundary modes in the I-42d structure, and compare with experiment. We then argue that the various P4_12_12 and I-42d enantiomorphs can be grouped into three clusters, each of which is identified with a three-dimensional manifold of structures of P2_12_12_1 symmetry in which the P4_12_12 and I-42d appear as higher-symmetry special cases. We find that there are relatively high energy barriers between manifolds, but low barriers within a manifold. Exploring the energy landscape within one of these manifolds, we find a minimal-energy path connecting P4_12_12 and I-42d structures with a surprisingly low barrier of ~5 meV per formula unit. Possible implications for the phase-transition mechanism are discussed.
description: 15 pages, 9 figures and 7 tables. Supplementary video: ftp://ftp.aip.org/epaps/phys_rev_b/E-PRBMDO-78-097829 or http://physics.rutgers.edu/~sinisa/sio2/trans.mpg
Markets 3.0: Integrating the Demand Side
Creators: Dr. Ralph D. Masiello
Publisher: name: IEEE
Year: 2017

Newsletter
As demand response mechanisms allowing for rapid and automatic responses to market conditions become ubiquitous in grids a development dubbed Markets 3.0 there will be wide implications for both technology and procedures. For example, the smart meters being rolled out today may not be quite smart enough; measurement and validation tasks used in settlements will have to be rethought; and there will be demand for appliances capable of acting and reacting autonomously.
Dynamics of Black Hole Pairs I: Periodic Tables
Creators: name: Levin, Janna
name: Grossman, Becky
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Although the orbits of comparable mass, spinning black holes seem to defy simple decoding, we find a means to decipher all such orbits. The dynamics is complicated by extreme perihelion precession compounded by spin-induced precession. We are able to quantitatively define and describe the fully three dimensional motion of comparable mass binaries with one black hole spinning and expose an underlying simplicity. To do so, we untangle the dynamics by capturing the motion in the orbital plane. Our results are twofold: (1) We derive highly simplified equations of motion in a non-orthogonal orbital basis, and (2) we define a complete taxonomy for fully three-dimensional orbits. More than just a naming system, the taxonomy provides unambiguous and quantitative descriptions of the orbits, including a determination of the zoom-whirliness of any given orbit. Through a correspondence with the rationals, we are able to show that zoom-whirl behavior is prevalent in comparable mass binaries in the strong-field regime. A first significant conclusion that can be drawn from this analysis is that all generic orbits in the final stages of inspiral under gravitational radiation losses are characterized by precessing clovers with few leaves and that no orbit will behave like the tightly precessing ellipse of Mercury. The gravitational waveform produced by these low-leaf clovers will reflect the natural harmonics of the orbital basis -- harmonics that, importantly, depend only on radius. The significance for gravitational wave astronomy will depend on the number of windings the pair executes in the strong-field regime and could be more conspicuous for intermediate mass pairs than for stellar mass pairs.
description: 19 pages, lots of figures
IEEE Smart Grid and the Future of the Grid
Creators: Ebrahim Vaahedi and Angelique Rajski Parashis
Publisher: name: IEEE
Year: 2017

Newsletter
In the past decade, smart grid has evolved into many areas. While the progress has been exciting to watch, it is also creating a confusion for the professionals and researchers that need to keep up to date with the progress and adaptation. The IEEE Smart Grid Committee recognized the need for an approach to bring discipline in categorizing different areas and initiatives of smart grid. The motivation for this categorization for those interested in smart grid is to get a broader view of smart grid in terms of understanding and training in different subject areas as well as continuing research and adaptation to industry applications.
The Four-story elevation in First Gothic architecture
Creators: name: Cairnie, Patricia Elizabeth Anne
Publisher: name: University of British Columbia
Year: 2010

description: One of the principal elements in First Gothic architecture of northern France was the appearance of the four-story elevation as a means of achieving spacial expansion in height. The parti was characterized by a uniform scheme - main arcade, tribune, triforium and clerestory collected in a single elevation - but was treated in various ways with respect to its structural, spacial and decorative aspects. In the chevets of Noyon, Saint-Germer and Laon the four-story elevation was employed in rapid succession, in closely connected centers, based on common concerns; still, each stands as a singularly experimental manifestation of the First Gothic desire for lofty volumes. While the four-story elevation has been discussed in general architectural histories of the period and in monographic studies of the individual monuments, it has never been examined in an independent context and as a central feature of First Gothic architecture. The role of the four-story elevation in the realization and expression of First Gothic principles remains to be clarified. The objective of this paper is to investigate the underlying principles in the early stages of the parti, by way of an examination of the chevets of Noyon, Saint-Germer and Laon. The sources for the general scheme of the four-story elevation in First Gothic are found in monuments of the Romanesque period. In the second stage of First Gothic the Romanesque thin-wall and thick-wall techniques were adopted and revised in accordance with the newly felt concern for vertical expansion. Hence, the widespread utilization of the scheme. However, the bases of the individualized treatments of the four-story elevations in the chevets of Noyon, Saint-Germer and Laon were not ruled by shared aesthetic considerations. In each structure the disposition of the stories and the organization of the bays, the penetration of the wall in depth and the articulation of the wall on its surface was determined by long, local traditions and contemporary, extra-local influences. In the final analysis, it is possible to observe of the four-story elevation that the uniformity of the scheme was a response to First Gothic principles whereas the diversity of the treatment was the result of regional variations.
Centro Científico e Cultural de Macau: uma breve memória pessoal (2006-2019)
Creators: name: Barreto, Luis Filipe
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Infraestruturas culturais em Macau e Portugal, nas décadas de 80 e 90 do século passado
Creators: name: Souza, Enio De
Publisher: name: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro
Year: 2021

description: Sem resumo disponível.
description: Fénix: Revista dos Amigos do Instituto Confúcio da Universidade de Aveiro, n.º 1 (2021): Macau: uma porta a Oriente
Commuting functions in class K and families of wandering Baker domains
Creators: name: Esparza-Amador, Adrián
Publisher: name: arXiv
Year: 2021
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37F80

description: Given commuting functions f,g, with at most a countable compact set of essential singularities, recent results for entire functions are extended to prove that Julia sets match, J(f)=J(g), in a particular case in the class K. With this result on hand, a general form of functions in this class, is constructed with wandering Baker domains.
Hydroelastic oscillations of square cylinders
Creators: name: Bouclin, Denis N.
Publisher: name: University of British Columbia
Year: 2010

description: A program of research has been undertaken to examine the interaction between vortex shedding and the galloping type oscillation which square cylinders are subject to when immersed in a water stream. It is possible that the fluctuating force from the vortex shedding could quench the galloping oscillation if it acts as a forced oscillation (independent of cylinder motion). An experiment was designed where a square cylinder with one degree of freedom could oscillate transversely to the water flow. The amplitude and frequency of the cylinder oscillation were measured. By using a hot film anemometer spectra of the fluctuating velocity in the wake were taken to determine what frequencies vortex shedding occurred at. The results show that for velocities greater than the resonant velocity the galloping oscillation is dominant and the cylinder motion controls the frequencies of the wake. For velocities less than the resonant velocity no galloping occurs and the vortex shedding seems to control any cylinder motion which occurs. To explain this type of response a mathematical model has been constructed. The model is a set of two coupled self excited oscillators} one with the characteristics of the galloping oscillation and the other with the characteristics of the fluctuating lift force from the vortex shedding. Using the model some aspects of the observed interaction are explained.
Accelerating Soft Robot Evolution Using N-gram-based Controller Inheritance and Genetic Co-Design
Creators: name: Xie, Yue
name: Xueming, Yan
name: Fumiya, Iida
Publisher: name: ACM
Year: 2025

description: Soft robots have drawn increasing attention due to their flexible morphologies suited for complex tasks in dynamic environments. However, the co-design of structure and control for soft robots remains a challenge, primarily due to the vast search space and high computational costs. A major limitation of current methods is the inefficient reuse of knowledge across generations, causing repeated learning of similar behaviors. This paper proposes an N-gram-based controller inheritance framework, integrating genetic algorithms for structural evolution with proximal policy optimization for controller training. By capturing sequential behavioral patterns from ancestor controllers, our approach reduces redundant learning and speeds up optimization. Experimental results demonstrate that we achieve a faster convergence rate and an average 12.7\% improvement in final fitness scores compared to existing methods. This study demonstrates the effectiveness of N-gram inheritance in improving soft robot co-design.
Centimeter Polarimetry of the R Coronae Australis Region
Creators: name: Choi, Minho
name: Tatematsu, Ken'ichi
name: Hamaguchi, Kenji
name: Lee, Jeong-Eun
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Circularly polarized 3.5 cm continuum emission was detected toward three radio sources in the R CrA region using the Very Large Array. The Class I protostar IRS 5b persistently showed polarized radio emission with a constant helicity over 8 yr, which suggests that its magnetosphere has a stable configuration. There is a good correlation between the Stokes I and Stokes V fluxes, and the fractional polarization is about 0.17. During active phases the fractional polarization is a weakly decreasing function of Stokes I flux, which suggests that IRS 5b is phenomenologically similar to other types of flare stars such as RS CVn binaries. The variability timescale of the polarized flux is about a month, and the magnetosphere of IRS 5b must be very large in size. The Class I protostar IRS 7A was detected once in circularly polarized radio emission, even though IRS 7A drives a thermal radio jet. This detection implies that the radio emission from the magnetosphere of a young protostar can escape the absorption by the partially ionized wind at least once in a while. The properties of IRS 7A and IRS 5b suggests that Class I protostars have organized peristellar magnetic fields of a few kilogauss and that the detectability of magnetospheric emission may depend on the evolutionary status of protostar. Also reported is the detection of circularly polarized radio emission toward the variable radio source B5.
description: To appear in the Astrophysical Journal
บ้านพักอาศัยประเภทบ้านเดี่ยวในกรุงเทพมหานครและปริมณฑล: แนวความคิดและรูปแบบสถาปัตยกรรม ระหว่างปี พ.ศ. 2542-2552
Creators: name: ศาสตราจารย์ เลอสม สถาปิตานนท์
Publisher: name: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย
Year: 2013
Subjects: บ้านพักอาศัย,บ้านเดี่ยว,รูปแบบสถาปัตยกรรม

description: 62, Academic Journal of Architecture
Scenario adaptive disruption prediction study for next generation burning-plasma tokamaks
Creators: name: Zhu, J.
name: Rea, C.
name: Granetz, R. S.
name: Marmar, E. S.
name: Montes, K. J.
name: Sweeney, R.
name: Tinguely, R. A.
name: Chen, D. L.
name: Shen, B.
name: Xiao, B. J.
name: Humphreys, D.
name: Barr, J.
name: Meneghini, O.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Next generation high performance (HP) tokamaks risk damage from unmitigated disruptions at high current and power. Achieving reliable disruption prediction for a device's HP operation based on its low performance (LP) data is key to success. In this letter, through explorative data analysis and dedicated numerical experiments on multiple existing tokamaks, we demonstrate how the operational regimes of tokamaks can affect the power of a trained disruption predictor. First, our results suggest data-driven disruption predictors trained on abundant LP discharges work poorly on the HP regime of the same tokamak, which is a consequence of the distinct distributions of the tightly correlated signals related to disruptions in these two regimes. Second, we find that matching operational parameters among tokamaks strongly improves cross-machine accuracy which implies our model learns from the underlying scalings of dimensionless physics parameters like q_{95}, β_{p} and confirms the importance of these parameters in disruption physics and cross machine domain matching from the data-driven perspective. Finally, our results show how in the absence of HP data from the target devices, the best predictivity of the HP regime for the target machine can be achieved by combining LP data from the target with HP data from other machines. These results provide a possible disruption predictor development strategy for next generation tokamaks, such as ITER and SPARC, and highlight the importance of developing on existing machines baseline scenario discharges of future tokamaks to collect more relevant disruptive data.
A Special Issue on the Distribution Domain
Creators: James Mater
David G. Hart
M. Amin Zamani
Ashok Gopalakrishnan
Paul Pabst
Kaveh Dehghanpour
Hashem Nehrir
Publisher: name: IEEE
Year: 2017

Newsletter
IEEE Smart Grid presents a Special Issue on the Distribution Domain which features, "When is a Smart Grid Standard Ready for Prime Time?", "Overview of the Impact of Renewables on Distribution Protection and Control", "Challenges of Microgrid Deployment", "Distributed Multi-Agent System Approaches for Microgrid Power Management".