cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two-Meson Form Factors in Unitarized Chiral Perturbation Theory
Creators: name: Shi, Yu-Ji
name: Seng, Chien-Yeah
name: Guo, Feng-Kun
name: Kubis, Bastian
name: Meißner, Ulf-G.
name: Wang, Wei
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present a comprehensive analysis of form factors for two light pseudoscalar mesons induced by scalar, vector, and tensor quark operators. The theoretical framework is based on a combination of unitarized chiral perturbation theory and dispersion relations. The low-energy constants in chiral perturbation theory are fixed by a global fit to the available data of the two-meson scattering phase shifts. Each form factor derived from unitarized chiral perturbation theory is improved by iteratively applying a dispersion relation. This study updates the existing results in the literature and explores those that have not been systematically studied previously, in particular the two-meson tensor form factors within unitarized chiral perturbation theory. We also discuss the applications of these form factors as mandatory inputs for low-energy phenomena, such as the semi-leptonic decays $B_s\to π^+π^-\ell^+\ell^-$ and the $τ$ lepton decay $τ\rightarrowπ^{-}π^{0}ν_τ$, in searches for physics beyond the Standard Model.
description: 53 pages, 21 figures, 3 tables
A circumplex model of affect and its relation to personality : a five-language study
Creators: name: Yik, Michelle Siu Mui
Publisher: name: University of British Columbia
Year: 2009

description: Are there aspects of affect that can be generalized across different languages? Are there consistent patterns of associations between self-reported affect and personality across groups speaking different languages? In the present dissertation, I explore these two questions in five different language samples. Studies of current self-reported affect in English suggest that Russell's (1980), Thayer's (1989), Larsen and Diener's (1992), and Watson and Tellegen's (1985) models of affect variables can be integrated and summarized by a two-dimensional space defined by Pleasant vs Unpleasant and Activated vs Deactivated axes. To assess the cross-language generalizability of this integrated structure, data on translations of the English affect scales (N for Spanish = 233, N for Chinese = 487, N for Japanese = 450, N for Korean = 365) were compared with the structure in English ON = 535). Systematic and random errors were controlled through multi-format measurements (Green, Goldman, & Salovey, 1993) and structural equation modeling. Individual measurement models as defined in English received support in all five languages, although revisions of these scales in non-English samples provided an even closer approximation to the two-dimensional structure in English. In all five languages, the two dimensions explained most, but not all, of the reliable variance in other affect variables (mean = 88%). The four structural models fit comfortably within the integrated two-dimensional space. In fact, the variables fell at different angles on the integrated space, suggesting a new circumplex structure. In prior studies conducted in English, the personality traits of Neuroticism and Extraversion were most predictive of affect and they aligned with the Pleasant Activated and Unpleasant Activated states. To clarify and extend the previous findings, participants in all five samples also completed NEO FFI (Costa & McCrae, 1992), a measure for the Five Factor Model of personality (FFM). Again, Neuroticism and Extraversion were most predictive of affect, accounting for, on average, 10% of the variance. The remaining three factors of the FFM contributed, on average, 2%. In all five languages, the FFM dimensions did not align with the two predicted affective dimensions. Rather, they fell all around the upper half of the twodimensional space.
Image of Veselago lens based upon two-dimensional photonic crystal with triangular lattice
Creators: name: Li, C. Y.
name: Holt, J. M.
name: Efros, A. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The construction of the multi-focal Veselago lens predicted earlier is proposed on the basis of a uniaxial photonic crystal consisting of cylindrical air holes in silicon that make a triangular lattice in a plane perpendicular to the axis of the crystal. The object and image are in air. The period of the crystal should be $0.44μ{\rm m}$ to work at the wavelength $1.5μ{\rm m}$. The lens does not provide superlensing but the half-width of the image is $0.5λ$. The lens is shown to have wave guiding properties depending on the substrate material.
description: 15 pages, 10 figures
Euclidean wormhole in the SYK model
Creators: name: García-García, Antonio M.
name: Godet, Victor
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study a two-site Sachdev-Ye-Kitaev (SYK) model with complex couplings, and identify a low temperature transition to a gapped phase characterized by a constant in temperature free energy. This transition is observed without introducing a coupling between the two sites, and only appears after ensemble average over the complex couplings. We propose a gravity interpretation of these results by constructing an explicit solution of Jackiw-Teitelboim (JT) gravity with matter: a two-dimensional Euclidean wormhole whose geometry is the double trumpet. This solution is sustained by imaginary sources for a marginal operator, without the need of a coupling between the two boundaries. As the temperature is decreased, there is a transition from a disconnected phase with two black holes to the connected wormhole phase, in qualitative agreement with the SYK observation. The expectation value of the marginal operator is an order parameter for this transition. This illustrates in a concrete setup how a Euclidean wormhole can arise from an average over field theory couplings.
description: 27 pages, v2: added discussion on annealed vs quenched, v3: published version
EX ANTE NON-MARKET VALUATION FOR NOVEL PRODUCT: LITERATURE REVIEW
Creators: name: Dofonsou, Sika Gbegbelegbe
name: Lowenberg-DeBoer, James
name: Dofonsou, Sika Gbegbelegbe
name: Lowenberg-DeBoer, James
Publisher: name: Unknown
Year: 2008
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Research Methods/ Statistical Methods
subject: Staff working papers
subject: Dept. of Agricultural Economics
subject: Internet publications
subject: Purdue University

description: This paper provides a critical review of the literature on non-market valuation methods to estimate the welfare impact of novel products; it is the first study to assess both observed data- and perception-based methods as non-market valuation methods. Observed databased methods include budgets, regression, mathematical programming, and simulation. Perceptions-based methods include the contingent valuation method, choice-based conjoint analysis and experimental methods. Findings imply that the preferred observed data-based method to estimate the ex ante economic impact of a new technology on the welfare of the farm household is a combination of simulation and mathematical programming. The preferred perception-based method for estimating the ex ante impact of a novel product on the welfare of an economic agent is represented by experimental methods. Findings also imply that observed-data based methods and more specifically mathematical programming are more popular for estimating the ex ante farm-level economic impact of a new technology. On the other hand, perception-based methods are more popular for estimating the economic impact of a novel product for consumers.
Recreation, Tourism, and Rural Well-Being
Creators: name: Reeder, Richard J.
name: Brown, Dennis M.
name: Reeder, Richard J.
name: Brown, Dennis M.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Community/Rural/Urban Development
subject: Resource /Energy Economics and Policy
subject: recreation
subject: tourism
subject: recreation counties
subject: rural development
subject: economic indicators
subject: social indicators
subject: rural development policy

description: The promotion of recreation and tourism has been both praised and criticized as a rural development strategy. This study uses regression analysis to assess the effect of recreation and tourism development on socioeconomic conditions in rural recreation counties. The findings imply that recreation and tourism development contributes to rural well-being, increasing local employment, wage levels, and income, reducing poverty, and improving education and health. But recreation and tourism development is not without drawbacks, including higher housing costs. Local effects also vary significantly, depending on the type of recreation area.
Prospects for EU Biofuel Production and Trade
Creators: name: Bamiére, Laure
name: Bureau, Jean-Christophe
name: Guinde, Loic
name: Guyomard, Herve
name: Jacquet, Florence
name: Treguer, David
name: Bamiére, Laure
name: Bureau, Jean-Christophe
name: Guinde, Loic
name: Guyomard, Herve
name: Jacquet, Florence
name: Treguer, David
Publisher: name: Unknown
Year: 2007
Subjects: International Relations/Trade
Resource /Energy Economics and Policy

description: The paper provides background information regarding the EU policy on biofuels. The purpose is to assess whether this policy may lead to an increased use of European agricultural products to provide energy, or whether it is more likely that the EU will shift towards imports of biofuels. The paper first describes the EU support policy for energy crops, i.e. tax exemption for biofuels and mandatory incorporation taxes in some member states, the impact on demand and supply of biofuels. It then focuses on the prospects for the production and utilization of biofuels in the EU. The paper addresses the three related issues of energy efficiency, environmental benefits and cost competitiveness of EU biofuels and presents simulations regarding the competition between food and non-food uses of agricultural products.
Paraproducts in One and Several Parameters
Creators: name: Lacey, Michael T
name: Metcalfe, Jason
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 42B20, Secondary 42B25, 42B30

description: For multiparameter bilinear paraproduct operators $B$ we prove the estimate $$ B: L^p X L^q --> L^r, 1
description: Minor corrections made
VALUING ELECTRICITY ASSETS IN DEREGULATED MARKETS: A REAL OPTIONS MODEL WITH MEAN REVERSION AND JUMPS
Creators: name: Ethier, Robert G.
name: Ethier, Robert G.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: real options
subject: electricity deregulation
subject: mean reversion
subject: jump processes
subject: asset valuation

description: Valuation of electricity generating assets is of central importance as utilities are forced to spin-off generators with the introduction of competitive markets. A continuous-time mean reverting price path with stochastic upward jumps is proposed as an appropriate model for long-run competitive electricity prices faced by a generator. A real options model is derived via dynamic programming using infinite series solutions. The derived model produces asset values which are uniformly higher than those produced by existing models, and which accurately predict observed generator sale prices. The model has favorable implications for stranded cost recovery and generator entry in competitive markets.
Substructures in the core of Abell 2319
Creators: name: Ichinohe, Y.
name: Simionescu, A.
name: Werner, N.
name: Markevitch, M.
name: Wang, Q. H. S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analysed the deep archival Chandra observations of the high-temperature galaxy cluster Abell 2319 to investigate the prominent cold front in its core. The main sharp arc of the front shows wiggles, or variations of the radius of the density jump along the arc. At the southern end of the arc is a feature that resembles a Kelvin-Helmholtz (KH) eddy, beyond which the sharp front dissolves. These features suggest that KH instabilities develop at the front. Under this assumption, we can place an upper limit on the ICM viscosity that is several times below the isotropic Spitzer value. Other features include a split of the cold front at its northern edge, which may be another KH eddy. There is a small pocket of hot, less-dense gas inside the cold front, which may indicate a `hole' in the front's magnetic insulation layer that lets the heat from the outer gas to penetrate inside the front. Finally, a large concave brightness feature southwest of the cluster core can be caused by the gasdynamic instabilities. We speculate that it can also be an inner boundary of a giant AGN bubble, similar to that in Ophiuchus. If the latter interpretation is supported by better radio data, this could be a remnant of another extremely powerful AGN outburst.
description: Accepted for publication in MNRAS
Superluminal group velocity in an anisotropic metamaterial
Creators: name: Luo, Hailu
name: Hu, Wei
name: Shu, Weixing
name: Li, Fei
name: Ren, Zhongzhou
Publisher: name: arXiv
Year: 2006
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Based on boundary condition and dispersion relation, the superluminal group velocity in an anisotropic metamaterial (AMM) is investigated. The superluminal propagation is induced by the hyperbolic dispersion relation associated with the AMM. It is shown that a modulated Gaussian beam exhibits a superluminal group velocity which depends on the choice of incident angles and optical axis angles. The superluminal propagation does not violate the theory of special relativity because the group velocity is the velocity of the peak of the localized wave packet which does not carry information. It is proposed that a triglycine sulfate (TGS) crystal can be designed and the superluminal group velocity can be measured experimentally.
description: 9 pages, 3 figures
CORNELL UNIVERSITY'S ENTREPRENEURSHIP EDUCATION & OUTREACH PROGRAM: EVALUATION AND PROPOSAL; A WHITE PAPER
Creators: name: Schlough, Charles A.
name: Streeter, Deborah H.
name: Schlough, Charles A.
name: Streeter, Deborah H.
Publisher: name: Unknown
Year: 1999
Subjects: Teaching/Communication/Extension/Profession

description: This paper is an evaluation of the two year experience of Cornell University's Entrepreneurship Education & Outreach (EEO) program and its efforts to disseminate and administer small business outreach training with the Premier FastTrac entrepreneurial curriculum. This paper describes EEO's origin, purpose, and mission, and an evaluation of knowledge gained from the fourteen month experience with the FastTrac entrepreneurship training program ending January 1999. There have been difficulties for EEO to achieve original expectations that were formed in Summer of 1996. We learned that a critical component of a successful outreach program of this nature is to have supportive cooperation by local as well as state level stakeholders in economic and community development. Experience revealed significant obstacles and barriers to build and sustain these critical components in some communities. A proposal to develop a statewide network of supportive partnerships is offered at the end of this paper.
[Faye vocabulary]
Creators: name: Hill, Jane
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: cup

description: Eleven typed pages of vocabulary from Paul-Louis Faye's field notes on Cupeño linguistics and ethnography, held by the Bancroft library at UC Berkeley (see here: http://oskicat.berkeley.edu/record=b21265809~S1). Contains handwritten retranscriptions and marginal notes from Jane Hill.
On the directions determined by Cartesian products and the clique number of generalized Paley graphs
Creators: name: Yip, Chi Hoi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B30, 11T06

description: It is known that the number of directions formed by a Cartesian product $A \times B \subset AG(2,p)$ is at least $|A||B| - \min\{|A|,|B|\} + 2$, provided $p$ is prime and $|A||B|
description: 26 pages, reference added
Combustion Synthesis of Magnetic Nanomaterials for Biomedical Applications
Creators: name: Gyulasaryan, Harutyun
name: Kuzanyan, Astghik
name: Manukyan, Aram
name: Mukasyan, Alexander
S.
Publisher: name: University of Notre Dame
Year: 2024

description: Combustion synthesis is a green, energy-saving approach that permits an easy scale-up and continuous technologies. This process allows for synthesizing various nanoscale materials, including oxides, nitrides, sulfides, metals, and alloys. In this work, we critically review the reported results on the combustion synthesis of magnetic nanoparticles, focusing on their properties related to different bio-applications. We also analyze challenges and suggest specific directions of research, which lead to the improvement of the properties and stability of fabricated materials.
Performance of the Data Handling Hub readout system for the Belle II pixel detector
Creators: name: Huber, Stefan
name: Konorov, Igor
name: Levit, Dmytro
name: Paul, Stephan
name: Steffen, Dominik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The SuperKEKB accelerator in Tsukuba, Japan is providing e$^+$e$^-$ beams for the Belle II experiment since March 2019. To deal with the aimed peak luminosity being forty times higher than the one recorded at Belle, a pixel detector based on DEPFET technology has been installed. It features a long integration time of 20 $μ$s resulting in an expected data rate of 20 GByte/s (160 GBit/s) at a maximum occupancy of 3 %. To deal with this high amount of data, the data handling hub (DHH) has been developed. It contains all necessary functionality for the control and readout of the detector. In this paper we describe the architecture and features of the DHH system. Further we will show the key performance characteristics after one year of operation.
WHAT DIFFERENCE DO POLARIZATION MEASURES MAKE? AN APPLICATION TO CHINA
Creators: name: Zhang, Siao-Bo
name: Kanbur, Ravi
name: Zhang, Siao-Bo
name: Kanbur, Ravi
Publisher: name: Unknown
Year: 1999
Subjects: Political Economy

description: In recent years there has been much discussion of the difference between Inequality and Polarization. The vast literature on inequality is held to miss out key features of distribution change, which are better described as changes in the polarization. Axioms have been proposed which capture some of these differences, and measures of polarization, as distinct from inequality, have been suggested. The theoretical distinctions proposed in this literature are indeed interesting. But the question remains what difference does it all make in actual application? Do the newly proposed measures of polarization give dramatically different results in comparing societies over time, or with each other? We address these questions for China, where dramatic increase in inequality and polarization have been much discussed in the literature. We find that, contrary to theoretical expectation, empirically the new measures of polarization do not give us very different results from the standard measures of inequality. The paper ends by considering a different way of thinking about polarization which might better conform to the empirical patterns observed, and policy concerns expressed.
Rank/Select Queries over Mutable Bitmaps
Creators: name: Pibiri, Giulio Ermanno
name: Kanda, Shunsuke
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: The problem of answering rank/select queries over a bitmap is of utmost importance for many succinct data structures. When the bitmap does not change, many solutions exist in the theoretical and practical side. In this work we consider the case where one is allowed to modify the bitmap via a flip(i) operation that toggles its i-th bit. By adapting and properly extending some results concerning prefix-sum data structures, we present a practical solution to the problem, tailored for modern CPU instruction sets. Compared to the state-of-the-art, our solution improves runtime with no space degradation. Moreover, it does not incur in a significant runtime penalty when compared to the fastest immutable indexes, while providing even lower space overhead.
description: Accepted by Information Systems (INFOSYS)
PRICE BEHAVIOR IN EMERGING STOCK MARKETS: CASES OF POLAND AND SLOVAKIA
Creators: name: Hranaiova, Jana
name: Hranaiova, Jana
Publisher: name: Unknown
Year: 1999
Subjects: Financial Economics

description: This paper analyzes serial correlation in stock returns, and informational role of volume and volatility in Polish and Slovakian stock markets. Results indicate that prices tend to overshoot to new information in the Slovakian market, while new information gets impounded into prices with a one-day lag in the Polish market. In the context of feedback trading models, the Slovakian stock market seems to be dominated by traders who sell high and buy low, while stop-loss or distress selling type traders prevail in the Polish market. Traders became more sophisticated over time, as market efficiencies increased. Informational role of volume and volatility appears to be consistent with that found in developed stock markets.
THE POTENTIAL ROLE OF MICROFINANCE INTSTITUTIONS IN MOBILIZING SAVINGS: LESSONS FROM KENYA AND UGANDA
Creators: name: Gudz, Stephen F.
name: Gudz, Stephen F.
Publisher: name: Unknown
Year: 1999
Subjects: Financial Economics

description: This study focuses on the possible role of microfinance institutions to mobilize savings among the low-income entrepreneurs who already use these organizations as sources of credit. The evidence is drawn from a pilot project carried out in 1997 and 1998 in Kenya and Uganda. Possible constraints and organizational options are discussed.
DETERMINING THE OPTIMAL AMOUNT OF NITROGEN TO APPLY TO CORN USING THE BOX-COX FUNCTIONAL FORM
Creators: name: Tauer, Loren W.
name: Tauer, Loren W.
Publisher: name: Unknown
Year: 2000
Subjects: Crop Production/Industries

description: A Box-Cox functional form was estimated from corn-nitrogen data previously used to report optimal nitrogen use from a quadratic production function. Results suggest that less nitrogen should be app1ie.d than recommended using the quadratic function, but with more nitrogen being applied if poor growing conditions are expected.
Three essays on international trade, political economy and environmental policy
Creators: name: Yu, Zhihao
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation contains three papers that contribute to the theory of international trade, political economy, and trade and environmental protection. The first paper develops a model to examine the costs and benefits of trade in differentiated products. It focuses on how relative ability in exporting variety between two countries determines economic welfare in both countries. The results shed light on the question of why export-promotion programs in many countries aim not only to help their existing exporting firms export more, but also to help domestic firms become new exporting firms or enter new foreign markets. The paper also discusses the possibility of over-provision of export variety and raises some questions regarding the benefits of trade in differentiated products. The second paper suggests some coherent explanations for tariff reductions and substitution of non-tariff barriers for tariffs, taking into account both organized special interests and unorganized consumer interests. It focuses on how the presence of informed consumers affects the political equilibrium choice of trade policy - both the level of protection and the policy instrument. The paper identifies three effects that interact with each other as an incumbent government substitutes a NTB for a tariff and finds, among other things, that an increase in foreign competition will not cause the government to substitute NTBs for tariffs but a rise in the government's valuation of political contributions might. The third paper shows that small or financially constrained environmentalist groups can compete indirectly through changing public preferences over environmental quality, though they may be in a weak position relative to polluting industries in the direct competition for political influence. It is also shown, however, that in a small open economy where the output price is exogenously determined, the value of domestic persuasion falls and government environmental policies will be determined by direct political competition. Moreover, direct competition for political influence in the open economy becomes more intense because positions of different groups on environmental policy become more extreme. The analysis also shows that moving to free trade would increase a country's environmental protection as long as the median voter were not very 'green'.
Cryogenic suspension design for a kilometer-scale gravitational-wave detector
Creators: name: Ushiba, Takafumi
name: Akutsu, Tomotada
name: Aso, Yoichi
name: Araki, Sakae
name: Bajpai, Rishabh
name: Chen, Dan
name: Craig, Kieran
name: Creus, William
name: Enomoto, Yutaro
name: Fujii, Yoshinori
name: Fukunaga, Masashi
name: Hagiwara, Ayako
name: Haino, Sadakazu
name: Hasegawa, Kunihiko
name: Inoue, Yuki
name: Izumi, Kiwamu
name: Kimura, Nobuhiro
name: Kokeyama, Keiko
name: Kumar, Rahul
name: Majorana, Ettore
name: Michimura, Yuta
name: Miyamoto, Takahiro
name: Miyoki, Shinji
name: Murakami, Iwao
name: Namai, Yoshikazu
name: Nakano, Masayuki
name: Ochi, Toshiro
name: Ohashi, Masatake
name: Okutomi, Koki
name: Saito, Yoshio
name: Shishido, Takaharu
name: Shoda, Ayaka
name: Somiya, Kentaro
name: Suzuki, Toshikazu
name: Takada, Suguru
name: Takahashi, Masahiro
name: Takahashi, Ryutaro
name: Tanaka, Hiroki
name: Terashima, Shinichi
name: Tomaru, Takayuki
name: Travasso, Flavio
name: Ueda, Ayako
name: Vocca, Helios
name: Yamada, Tomohiro
name: Yamamoto, Kazuhiro
name: Zeidler, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We report the mirror suspension design for Large-scale Cryogenic Gravitational wave Telescope, KAGRA, during bKAGRA Phase 1. Mirror thermal noise is one of the fundamental noises for room-temperature gravitational-wave detectors such as Advanced LIGO and Advanced Virgo. Thus, reduction of thermal noise is required for further improvement of their sensitivity. One effective approach for reducing thermal noise is to cool the mirrors. There are many technical challenges that must be overcome to cool the mirrors, such as cryocooler induced vibrations, thermal drift in suspensions, and reduction in duty cycling due to the increased number of potential failure mechanisms. Our mirror suspension has a black coating that makes radiative cooling more efficient. For conduction cooling, we developed ultra high purity aluminum heat links, which yield high thermal conductivity while keeping the spring constant sufficiently small. A unique inclination adjustment system, called moving mass, is used for aligning the mirror orientation in pitch. Photo-reflective displacement sensors, which have a large range, are installed for damping control on marionette recoil mass and intermediate recoil mass. Samarium cobalt magnets are used for coil-magnet actuators to prevent significant change of magnetism between room temperature and cryogenic temperature. In this paper, the design of our first cryogenic payload and its performance during bKAGRA Phase 1 are discussed.
description: 18 pages, 9 figures
Iterative MILP Methods for Vehicle Control Problems
Creators: name: Earl, Matthew
name: D'Andrea, Raffaello
Publisher: name: arXiv
Year: 2005
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences
subject: I.2.9; I.2.8; J.2

description: Mixed integer linear programming (MILP) is a powerful tool for planning and control problems because of its modeling capability and the availability of good solvers. However, for large models, MILP methods suffer computationally. In this paper, we present iterative MILP algorithms that address this issue. We consider trajectory generation problems with obstacle avoidance requirements and minimum time trajectory generation problems. The algorithms use fewer binary variables than standard MILP methods and require less computational effort.
description: 22 pages, 9 figures, submitted to IEEE Transactions on Robotics, for associated web page see http://control.mae.cornell.edu/earl/milp2
Recent Trends and Economic Issues in the WIC Infant Formula Rebate Program
Creators: name: Oliveira, Victor
name: Davis, David E.
name: Oliveira, Victor
name: Davis, David E.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: WIC
subject: Special Supplemental Nutrition Program for Women
subject: Infants
subject: and Children
subject: infant formula
subject: rebates
subject: net wholesale price
subject: retail markup
subject: wholesale price
subject: Food Assistance and Nutrition Research Program
subject: FANRP

description: Over half of all infant formula sold in the United States is purchased through the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC). Typically, WIC State agencies obtain substantial discounts in the form of rebates from infant formula manufacturers for each can of formula purchased through the program. The cost to WIC for each can of formula provided through the program has two components: (1) net wholesale price, which is equal to the wholesale price of formula minus the amount of the rebate; and (2)retail markup, which is equal to the retail price minus the wholesale price. This analysis suggests that retail markup accounts for most of the cost to WIC of infant formula in most States. However, both cost components have increased over time. The recent increase in both net wholesale price and retail markup coincides with the introduction of higher priced supplemented infant formulas. Conditions may change after the market adjusts to these new formulas.
Letter from Lily Yeats, [1907-11-07]
Creators: name: Yeats, Lily, 1866-1949
Publisher: name: University of Victoria Libraries
Year: 2023
Subjects: subject: Book designers
valueUri: http://id.worldcat.org/fast/836167
subject: Book design
valueUri: http://id.worldcat.org/fast/836152

description: A handwritten letter to an unnamed customer from Lily Yeats in which she states "I have just posted to you Katherine Tynan's poems". She also encloses two book- markers "painted by the girls. My sister teaches them painting & drawing." Lily Yeats was the sister of W. B. Yeats and of Jack Yeats, and the daughter of John Butler Yeats. She was an embroiderer and worked with William Morris. Later, she headed the embroidery division of Dun Emer Industries while her sister Elizabeth was in charge of the hand press. The press was later renamed the Cuala Press.
Compact steep-spectrum and peaked-spectrum radio sources
Creators: name: O'Dea, Christopher P.
name: Saikia, D. J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Compact steep-spectrum (CSS) and peaked spectrum (PS) radio sources are compact, powerful radio sources. The multi-frequency observational properties and current theories are reviewed with emphasis on developments since the earlier review of O'Dea (1998). There are three main hypotheses for the nature of PS and CSS sources. (1) The PS sources might be very young radio galaxies which will evolve into CSS sources on their way to becoming large radio galaxies. (2) The PS and CSS sources might be compact because they are confined (and enhanced in radio power) by interaction with dense gas in their environments. (3) Alternately, the PS sources might be transient or intermittent sources. Each of these hypotheses may apply to individual objects. The relative number in each population will have significant implications for the radio galaxy paradigm. Proper motion studies over long time baselines have helped determine hotspot speeds for over three dozen sources and establish that these are young objects. Multifrequency polarization observations have demonstrated that many CSS/PS sources are embedded in a dense interstellar medium and vigorously interacting with it. The detection of emission line gas aligned with the radio source, and blue-shifted HI absorption and [OIII] emission lines indicates that AGN feedback is present in these objects -- possibly driven by the radio source. CSS/PS sources with evidence of episodic AGN over a large range of time-scales have been discussed. The review closes with a discussion of open questions and prospects for the future.
description: 131 pages, 17 figures; accepted for publication in The Astronomy and Astrophysics Review
HUMAN-INSPIRED WIRE ARC ADDITIVE MANUFACTURING WITHOUT SHIELDING GAS
Creators: name: Gosser, Catherine F.
Publisher: name: Washington State University
Year: 2026
Subjects: additive manufacturing
inner shield
Welding

description: Wire arc additive manufacturing or three-dimensional printing has been utilized in various fully automated welding techniques to reduce the number of parts in complex assemblies and increase fabricator safety. In this investigation the conventional definitions of additive manufacturing are expanded to include self-shielding flux core arc welding. Wire arc additive manufacturing - flux-cored arc welding (WAAM-FCAW) with self-shielded wire E71T1-8 is automated using a Burny-5 fully automatic 3-axis gantry to create a single vee-groove joint in mild carbon steel plate via a novel infill pattern. To achieve a fully automated weldment in 19mm and 25mm carbon steel plates the infill patterns required a flat surface between layers, this innovative infill pattern creates a flat crown thus reducing the time and material required to fabricate a single joint. Three infill patterns are designed using a combination of human inspired type design in both x and y fill path direction. The infill patterns were assessed to AWS D1.1 standards by tensile, bend testing, and macro-imaging. The grain structure of the joints was evaluated with Electron Backscatter Diffraction, a scanning electron microscope technique.
Misperception, Self-Deception and Information Warfare
Creators: name: Kopp, Carlo
name: Brumley, Lachlan
name: Korb, Kevin
Publisher: name: Monash University
Year: 2024
Subjects: classificationCode: 469999
subject: Other information and computing sciences not elsewhere classified

description: Brumley, L., Kopp, C., and Korb, K. B. (2005). Misperception, Self-Deception and Information Warfare. In Pye, G. and Warren, M., editors, Proceedings of the 6th Australian Information Warfare & Security Conference 2005, pages 71–79, Geelong, Australia. School of Information Systems, Deakin University.AbstractDeception techniques are Information Warfare strategies commonly used by biological organisms and organisations to gain an advantage during competition. In this paper we examine two related techniques, misperception and self-deception, which we relate to the four canonical Information Warfare strategies and Boyd's OODA loop model.
Polarization of L Dwarfs by Dust Scattering
Creators: name: Sengupta, Sujan
name: Kwok, Sun
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The degree of polarization in L dwarfs of spectral types L0 to L6 resulting from dust scattering in a rotation-induced oblate photosphere is calculated. Assuming that forsterite is the main condensate, the atmospheric dust distribution is derived for different spectral types based on a chemical equilibrium model. The degree of polarization at optical is then calculated using a single scattering model. The expected linear polarization at optical is found to peak at around spectral type L1. For a fixed rotational velocity, the degree of polarization decreases from hotter to cooler objects. However, with the increase in mean grain size, the degree of linear polarization reduces significantly. We fit the recently observed linear polarimetric data of L dwarfs and find that single dust scattering model coupled with the chemical equilibrium models of condensates is consistent with the observational results.
description: Latex (aastex sty), 23 pages including 7 postscript figures. Accepted for publication in the Astrophysical Journal (Part 1)
Relations between elliptic modular graphs
Creators: name: Basu, Anirban
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Number Theory (math.NT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider certain elliptic modular graph functions that arise in the asymptotic expansion around the non--separating node of genus two string invariants that appear in the integrand of the $D^8 R^4$ interaction in the low momentum expansion of the four graviton amplitude in type II superstring theory. These elliptic modular graphs have links given by the Green function, as well its holomorphic and anti--holomorphic derivatives. Using appropriate auxiliary graphs at various intermediate stages of the analysis, we show that each graph can be expressed solely in terms of graphs with links given only by the Green function and not its derivatives. This results in a reduction in the number of basis elements in the space of elliptic modular graphs.
description: 27 pages, LaTeX; 13 figures
title: Bridges:
title: Synthesis of Load Histories and Analysis of Fatigue
titleType: Subtitle
Creators: name: Havens, James H.
name: Deen, Robert C.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1972
Subjects: subject: Transportation Engineering

description: Repeated stressing of metals above certain limits induces inter- and intra-crystalline dislocations and cleavages and eventually cracks which propagate to failure. Some authorities consider crack propagation to be a separate and discrete stage in the failure process. The internal damage is insidiously cumulative and irreversible. This phenomenon was recognized as early as 1829 and was termed fatigue as early as 1839(1). From the beginning of fatigue testing (Wohler, 1858-1870), results have been reported as S-N, S-log N, or log S-log N curves, where N is the number of repetitions of stress S. From a structural design point of view, the purpose of fatigue testing then was to find the endurance or fatigue limit (i.e., fEL) and so to establish the design or working stress (for many steels, fEL came to be regarded as 55 percent of fy, the yield stress, or 46 percent of fu, the ultimate strength).
Isotropy, shear, symmetry and exact solutions for relativistic fluid spheres
Creators: name: Wiltshire, Ron
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The symmetry method is used to derive solutions of Einstein's equations for fluid spheres using an isotropic metric and a velocity four vector that is non-comoving. Initially the Lie, classical approach is used to review and provide a connecting framework for many comoving and so shear free solutions. This provides the basis for the derivation of the classical point symmetries for the more general and mathematicaly less tractable description of Einstein's equations in the non-comoving frame. Although the range of symmetries is restrictive, existing and new symmetry solutions with non-zero shear are derived. The range is then extended using the non-classical direct symmetry approach of Clarkson and Kruskal and so additional new solutions with non-zero shear are also presented. The kinematics and pressure, energy density, mass function of these solutions are determined.
description: To appear in Classical and Quantum Gravity
Large-Scale Gravitational Lens Modeling with Bayesian Neural Networks for Accurate and Precise Inference of the Hubble Constant
Creators: name: Park, Ji Won
name: Wagner-Carena, Sebastian
name: Birrer, Simon
name: Marshall, Philip J.
name: Lin, Joshua Yao-Yu
name: Roodman, Aaron
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We investigate the use of approximate Bayesian neural networks (BNNs) in modeling hundreds of time-delay gravitational lenses for Hubble constant ($H_0$) determination. Our BNN was trained on synthetic HST-quality images of strongly lensed active galactic nuclei (AGN) with lens galaxy light included. The BNN can accurately characterize the posterior PDFs of model parameters governing the elliptical power-law mass profile in an external shear field. We then propagate the BNN-inferred posterior PDFs into ensemble $H_0$ inference, using simulated time delay measurements from a plausible dedicated monitoring campaign. Assuming well-measured time delays and a reasonable set of priors on the environment of the lens, we achieve a median precision of $9.3$\% per lens in the inferred $H_0$. A simple combination of 200 test-set lenses results in a precision of 0.5 $\textrm{km s}^{-1} \textrm{ Mpc}^{-1}$ ($0.7\%$), with no detectable bias in this $H_0$ recovery test. The computation time for the entire pipeline -- including the training set generation, BNN training, and $H_0$ inference -- translates to 9 minutes per lens on average for 200 lenses and converges to 6 minutes per lens as the sample size is increased. Being fully automated and efficient, our pipeline is a promising tool for exploring ensemble-level systematics in lens modeling for $H_0$ inference.
description: 21 pages (+2 appendix), 17 figures. Published in ApJ. Code at https://github.com/jiwoncpark/h0rton. Datasets, trained models, and inference results at https://zenodo.org/record/4300382
A Pavement Design Schema
Creators: name: Havens, James H.
name: Deen, Robert C.
name: Southgate, Herbert F.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1972
Subjects: subject: Transportation Engineering

description: Elastic theory and 40 years of empirical flexible pavement design in Kentucky have been joined into the design system presented herein. A brief discussion is presented of the coupling mechanisms relating experience to theoretical analyses. An annotated design procedure is presented as a guide for pavement designers. Design nomographs account for a wide range of input parameters and permit the designer a wide choice of alternative thickness designs.
Phase Behavior of Polyelectrolyte Block Copolymers in Mixed Solvents
Creators: name: Cristobal, Galder
name: Berret, Jean-Francois
name: Chevallier, Cedrick
name: Talingting-Pabalan, Ruela
name: Joanicot, Mathieu
name: Grillo, Isabelle
Publisher: name: arXiv
Year: 2008
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the phase behavior of the poly(n-butyl acrylate)-b-poly(acrylic acid) block copolymer in a mixture of two miscible solvents, water and tetrahydrofuran (THF). The techniques used to examine the different polymers, structures and phases formed in mixed solvents were static and dynamic light scattering, small-angle neutron scattering, nuclear magnetic resonance and fluorescence microscopy. By lowering the water/THF mixing ratio X, the sequence unimers, micron-sized droplets, polymeric micelles was observed. The transition between unimers and the micron-sized droplets occurred at X = 0.75, whereas the microstructuration into core-shell polymeric micelles was effective below X = 0.4. At intermediate mixing ratios, a coexistence between the micron-sized droplets and the polymeric micelles was observed. Combining the different aforementioned techniques, it was concluded that the droplet dispersion resulted from a solvent partitioning that was induced by the hydrophobic blocks. Comparison of poly(n-butyl acrylate) homopolymers and poly(n-butyl acrylate)-b-poly(acrylic acid) block copolymers suggested that the droplets were rich in THF and concentrated in copolymers and that they were stabilized by the hydrophilic poly(acrylic acid) moieties.
description: 11 pages, 12 figures, to appear in Macromolecules
The demise of universality: the politics of federal income security in Canada, 1978-1993
Creators: name: Phillips, Stephen
Publisher: name: University of British Columbia
Year: 2009

description: Research by political scientists on the modern welfare state focuses on its historical development and on the emergence of distinctive welfare state regimes. Research conducted in the past decade has also been concerned with the implications for the welfare state of the recurrent crises which have afflicted western economies since the late 1970's. However, while the politics of building welfare states are now better understood, there remains little systematic study of the politics of their retrenchment, a phenomenon which has been under way for the past two decades in most advanced capitalist states. This study examines the politics of retrenchment in Canada over the period 1978 to 1993. Focusing on three categories of federal income security programmes (family benefits, retirement income programmes, and Unemployment Insurance), the thesis describes a gradual shift in programme design away from universality and toward greater selectivity. Concomitant with this development was an increasing reliance on the tax system as an instrument of social policy. Applying Gosta Esping-Andersen's analysis of welfare state regimes, the thesis contends that the cumulative effect of programme retrenchment during this period was to reinforce the liberal-residualist character of Canada's welfare state at the expense of its social democratic aspects. In an effort to explain the process of welfare state retrenchment in Canada, within and between different categories of income security programmes, the thesis tests hypotheses associated with three major approaches to the study of public policy: class analysis, institutionalism, and pluralism. The thesis concludes that retrenchment in Canada was broadly facilitated by a decline in the political power resources of labour in relation to those of business. Because of the weakness of the relevant non-class pressure groups, pluralism is of limited value in explaining retrenchment outcomes. Insights into more specific patterns of retrenchment are gained from two institutionalist perspectives. The first of these, a state-centred approach, draws attention to the larger role in social policy-making that was assumed by the Department of Finance, the chief fiscal guardian of the Federal Government. The second perspective, a rational choice theory developed by Paul Pierson, provides insight into the manner in which certain retrenchment measures were formulated. Based on Kent Weaver's blame-avoidance thesis, Pierson's model provides a persuasive explanation for the reliance of Canadian governments on arcane changes to tax rules and indexation formulae as an instrument of retrenchment. Since each of the analyses provides at best only a partial explanation for the politics of welfare state retrenchment, the thesis proposes the scheme of an integrated approach which incorporates the explanatory power of class analysis and institutionalism.