cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Interfaces and wetting transition on the half plane. Exact results from field theory
Creators: name: Delfino, Gesualdo
name: Squarcini, Alessio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We consider the scaling limit of a generic ferromagnetic system with a continuous phase transition, on the half plane with boundary conditions leading to the equilibrium of two different phases below criticality. We use general properties of low energy two-dimensional field theory to determine exact asymptotics of the magnetization profile perperdicularly to the boundary, to show the presence of an interface with endpoints pinned to the boundary, and to determine its passage probability. The midpoint average distance of the interface from the boundary grows as the square root of the distance between the endpoints, unless the reflection amplitude of the bulk excitations on the boundary possesses a stable bound state pole. The contact angle of the phenomenological wetting theory is exactly related to the location of this pole. Results available from the lattice solution of the Ising model are recovered as a particular case.
description: 9 pages, 3 figures
Inferences about Interactions: Fermions and the Dirac Equation
Creators: name: Knuth, Kevin H.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: At a fundamental level every measurement process relies on an interaction where one entity influences another. The boundary of an interaction is given by a pair of events, which can be ordered by virtue of the interaction. This results in a partially ordered set (poset) of events often referred to as a causal set. In this framework, an observer can be represented by a chain of events. Quantification of events and pairs of events, referred to as intervals, can be performed by projecting them onto an observer chain, or even a pair of observer chains, which in specific situations leads to a Minkowski metric replete with Lorentz transformations. We illustrate how this framework of interaction events gives rise to some of the well-known properties of the Fermions, such as Zitterbewegung. We then take this further by making inferences about events, which is performed by employing the process calculus, which coincides with the Feynman path integral formulation of quantum mechanics. We show that in the 1+1 dimensional case this results in the Feynman checkerboard model of the Dirac equation describing a Fermion at rest.
description: 11 pages, 3 figures. To be published in the MaxEnt 2012 proceedings
The ecology of an African savanna fruit bat community: resource partitioning and role in seed dispersal.
Creators: name: Thomas, Donald W
Publisher: name: Zenodo
Year: 1982
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) This study was undertaken to examine the structure of a fruit bat community, its seasonal variation in composition, the mechanisms of partitioning of fruit resources, and the role of the bats as seed dispersers in southern Guinea savanna in Africa. The community is structured on two levels. A group of four species remain resident in the savanna-forest mosaic zone year round and three species invade the community from the southern forest zone seasonally. Diets indicate that the resident species (Epomops buettikoferi, Hypsignathus monstrosus, Lissonycteris angolensis, and Mieropteropus pusillus) forage in three mutually exclusive zones and the diet overlaps between these species are low, except in the case of E. buettikoferi and M. pusillus. The latter two species overlap heavily-in both diet selection and in foraging zone, and evidence is presented showing them to be in severe competition when resources are limiting. They co-exist only in high fruit density patches. The migrant species (Eidolon helvum, Myonycteris torquata, and Nanonycteris veldkampi) invade the community at the onsert of the rains when the diversity of fruit resources increases over the dry season low. Each uses one of the three foraging zones and co-existence is mediated through: 1) the use of different fruit sizes and 2) overlap with the resident species only on fruits that are super-abundant. Dry season limitation of the resident species' populations appears to be important in permitting the invasion of this community. -The seed rain generated by bats and birds was measured with ground-based collecting sheets on transects through the savanna. Seed rains were impressively high, with each square metre receiving on the average 3.3 seed loads annually. Bats accounted for 95.7-98.2% of the measured rain. The bat dominance appears due to the higher proportion of time spent in flight compared with birds. •
Hyperfine Structure in the Rotational Spectrum of GaBr
Creators: name: Pfaffe, S.
name: Tiemann, E.
name: Hoeft, J.
Publisher: name: Berlin : De Gruyter
Year: 1978
Subjects: subject: Hyperfine Structure
subject: Rotational Spectrum
subject: GaBr
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The hyperfine structure of the rotational transition J = 2 ← 1 in the vicinity of 9.8 GHz was measured. The analysis yielded the following quadrupole coupling constants: e qv Q (79Br)= 105.78(34) + 0.92(38) (υ +1/2) MHz, e qv Q (81Br) = 88.55 (35) + 0.60 (32) (υ +1/2) MHz, e qv Q (69Ga) = − 86.68 (30) + 0.36 (24) (υ +1/2) MHz, e qv Q (71Ga) = − 54.58 (25) MHz. These results are consistent with systematic trends in the group of (III a/VII a) -compounds and remove some discrepencies in the literature. © 1978, Walter de Gruyter. All rights reserved.
title: Acculturation: Friend or Foe of the Career Aspirations and Educational Aspirations and Expectations of Hispanic Youth?
Creators: name: Aguilera, Kyhara Nathalia
Publisher: name: Old Dominion University Libraries
Year: 2019

description: The modern American Dream says that anyone can be successful if they obtain higher education. Unfortunately, this system does not always meet the needs of our increasingly diverse society. Hispanic immigrant students face a hardship in pursuit of their education and career aspirations because many of them experience acculturation related stresses. This study seeks to investigate the role that acculturation plays in the career aspirations and educational aspirations and expectations of Hispanic students. I go beyond the current literature by exploring how acculturation is a significant factor in determining educational and career aspirations. Specifically, I examine whether different levels of acculturation influence Hispanic students’ achievement towards their educational and occupational dreams. The studies exploring acculturation and aspirations often lack a theoretical perspective by way of reporting the effects without investigating the root of these issues. To fill in this gap, Schumann’s Acculturation theory is utilized in this study. Results from multivariate regression analyses suggests that language proficiency is the most important component in acculturation and that attitudinal familism is a protective factor, meaning that family support is valuable in achieving their goals. Based on these findings, politicians and policymakers should take an increased interest into the immigrant populations and provide them with the tools to improve their communication skills as well as provide them with a more welcoming environment, especially in places such as schools, when the immigrant populations are the most vulnerable.
Relevance versus reliability of accounting information with unlimited and limited commitment
Creators: name: Schöndube-Pirchegger, Barbara
name: Schöndube, Jens Robert
Publisher: name: Heidelberg : Springer
Year: 2017
Subjects: subject: Distortion
subject: Throughput accounting
subject: Economics
subject: Accounting information system
subject: Contractible space
subject: Principal–agent problem
subject: Commitment device
subject: Incentive
subject: Welfare economics
subject: Information needs
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: We consider a two-period LEN-type agency problem. The principal needs to implement one out of two accounting systems. One emphasizes relevance, the other reliability. Both systems produce identical inter-temporally correlated signals. The relevant system reports an accounting signal in the period in which it is produced. The reliable system reports a more precise signal, but with a one period delay. Accounting information is contractible only if it is reported within the two-period horizon of the game. Accordingly, accounting information produced in the second period becomes uncontractible with the reliable system in place. Non-accounting information needs to be used for contracting to provide any second period incentives at all. We derive optimal compensation contracts in a full and in a limited commitment setting. With full commitment, the reliable system trades-off more precise first and less precise second-period contractible information, as compared to the relevant system. If the reduction of noise in the accounting signals is strong and the distortion in the non-accounting measure is weak, the reliable system is preferred. With limited commitment we identify a similar trade-off if intertemporal correlation of the signals is negative. If it is positive, this trade-off might reverse: The reliable system is possibly preferred if noise reduction is small and the non-accounting measure is heavily distorted. Noisiness in performance measures then serves as a commitment device. It reduces otherwise overly high powered incentives and thus benefits the principal.
Finite element analysis regarding the forming behaviour of symmetric hybrid structures consisting of two sheet metal outer layers and a thermoplastic core
Creators: name: Behrens, Bernd-Arno
name: Bouguecha, Anas
name: Bonk, Christian
name: Schulze, H.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Automotive industry
subject: Characterization
subject: Deep drawing
subject: Hybrid materials
subject: Numerical models
subject: Sheet metal
subject: Cohesive zone modelling
subject: Deep-drawing process
subject: Experimental characterization
subject: Interlaminar failures
subject: Material characteristics
subject: Material combination
subject: Modelling and simulations
subject: Prediction accuracy
subject: Finite element method
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: To face challenges like damping effects or weight reduction in the automotive sector, new hybrid material combinations are developed. One possibility is the combination of several symmetric material layers with varying material characteristics to achieve in the component production less weight and appropriate stiffness in comparison to components produced with sheet metal. This article deals with the characterization of deep drawing behaviour of layered sandwich structures. The behaviour of the several layers and the layer interaction have been taken into account for the technical design of a deep drawing process. A material layer characterization is performed. Instabilities as interlaminar failures, ruptures or wrinkling of the structure have been investigated as part of additional experimental characterization tests on the basis of various deep drawing process parameters. Finally, the experimental data is used as input for the numerical modelling and simulation of layered structures. The FE simulation includes the material behaviour of the layers and layer interactions with cohesive zone modelling. Based on the results an important contribution for prediction accuracy in the numerical simulation has been provided.
Spectroscopic Variations of the Be-shell Star EW Lac in the V/R Variation Periods
Creators: name: Mon, Masahiro
name: Suzuki, Masakazu
name: Moritani, Yuki
name: Kogure, Tomokazu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: EW Lac has shown remarkable V/R variations in 1976 - 1986, and a similar V/R variation has started again in around 2007, after some quasi-periodic V/R variation. For the first V/R variation event, we analyze the spectroscopic behaviors of emission lines and shell absorption lines of the Balmer series. The V/R variations of the H_alpha through H_delta lines are characterized by the different manner of variations of the individual emission lines in time lag and in duration of the V/R phases. Weak correlation is also notable between the V/R variations and other variations of the line-profile parameter such as the peak velocities, emission line intensities and peak separations. We analyze shell absorption lines for higher members of the Balmer series for their central depths and radial velocities. The optical depth of the H_alpha line is in a range of 2000 to 6000, and its long-term variation discloses different behaviors as compared to the V/R variations. Combining the analyses of emission and shell absorption lines, and regarding the V/R variation as wave propagation phenomena, we find for the 1976 - 1986 event that the V/R variation is of retrograde structure and a spiral structure is likely formed inside the disk in the latter half of this event. The weak correlations among physical parameters are suggestive of the disk truncated at some radius. It is noticed that remarkable stellar brightening has occurred in the latter half of the event, accompanying marked decrease of emission line intensities. As for the V/R variation appeared in around 2007, which looks like a recurrence of the previous event, we found less developed state of the disk without appreciable time lag.
description: 19 pages, 18 figures, accepted for publication in PASJ
MPEC 2023-V239 : 2023 VM8
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 VM8

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Cooperative effects enhance the transport properties of molecular spider teams
Creators: name: Rank, Matthias
name: Reese, Louis
name: Frey, Erwin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Molecular spiders are synthetic molecular motors based on DNA nanotechnology. While natural molecular motors have evolved towards very high efficiency, it remains a major challenge to develop efficient designs for man-made molecular motors. Inspired by biological motor proteins like kinesin and myosin, molecular spiders comprise a body and several legs. The legs walk on a lattice that is coated with substrate which can be cleaved catalytically. We propose a novel molecular spider design in which n spiders form a team. Our theoretical considerations show that coupling several spiders together alters the dynamics of the resulting team significantly. Although spiders operate at a scale where diffusion is dominant, spider teams can be tuned to behave nearly ballistic, which results in fast and predictable motion. Based on the separation of time scales of substrate and product dwell times, we develop a theory which utilises equivalence classes to coarse-grain the micro-state space. In addition, we calculate diffusion coefficients of the spider teams, employing a mapping of an n-spider team to an n-dimensional random walker on a confined lattice. We validate these results with Monte Carlo simulations and predict optimal parameters of the molecular spider team architecture which makes their motion most directed and maximally predictable.
description: 15 pages, 11 figures
Fashioning mass modernism: Harper's Bazaar, Vogue, and photography in the American fashion magazine, 1929-1968
Creators: name: Booher, Kaitlin
Publisher: name: No Publisher Supplied
Year: 2023

description: Fashion is a genre of the photographic that is too easily dismissed because it challenges core tenants of the medium’s modernist identity, even for photographers themselves. The process is inherently collaborative, rather than the creation of a sole artist. It is highly subjective and crafted, rather than a recording of the world. Although museum exhibition catalogs and fashion magazines themselves have published broad surveys of the category, there has yet to be a critical approach that attends to fashion photography’s business practices or theorizes its role in visual culture. What insight could be brought to such photographs through archival working documents surrounding their making and closer attention to their original context of the magazine page? To answer this, this dissertation studies the role played by American fashion magazines in professionalizing fashion photography and bringing relatively avant-garde imagery to a mass audience. Specifically, it examines the networks of people who created and published editorial photographs at Harper’s Bazaar and Vogue between 1929, when Vogue invested significantly in photographic technology and modernist design and 1968, when the genre began experiencing a fundamental transformation away from its earlier idioms. This window in the middle of the twentieth century served as a cultural watershed for the role of fashion imagery in American history. In addition to outlining the collaborative production of fashion photographs, each chapter focuses on a period of stylistic and technological change, including the shift from illustration to black-and-white photography, the introduction of color photography reproduction, and the impact of small-format cameras on the location and look of fashion photographs. Each shift was driven by magazine producers’ restless search for novelty through images and language that would surprise and delight their readers with every issue, giving form to the notion that fashion is constant change.
Supercritical percolation on large scale-free random trees
Creators: name: Bertoin, Jean
name: Bravo, Geronimo Uribe
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We consider Bernoulli bond percolation on a large scale-free tree in the supercritical regime, meaning informally that there exists a giant cluster with high probability. We obtain a weak limit theorem for the sizes of the next largest clusters, extending a recent result for large random recursive trees. The approach relies on the analysis of the asymptotic behavior of branching processes subject to rare neutral mutations, which may be of independent interest.
title: World History Connected, Vol. 13 No. 3: Fall 2016
title: Fall 2016
titleType: AlternativeTitle
Creators: name: World History Connected
Publisher: name: World History Connected
Year: 2023

description: Wolfgang Reinhard, ed., Empires and Encounters, 1350-1750 Michael Saler, ed., The Fin-de-Siècle World Andrew Lees, The City: A World History Barbara Alpern Engel and Janet Martin, Russia in World History Cathie Carmichael and Richard C. Maguire, eds., The Routledge History of Genocide Paul M. Cobb, The Race for Paradise: An Islamic History of the Crusades Wayne E. Lee, Waging War: Conflict, Culture, and Innovation in World History Kwasi Konadu, Transatlantic Africa, 1440-1888. Epilogue by Trevor Getz James Carter and Richard Warren, Forging the Modern World: A History Heather Streets-Salter and Trevor R. Getz, Empires and Colonies in the Modern World: A Global Perspective Alicia C. Decker and Andrea L. Arrington, Africanizing Democracies, 1980-Present Digital Resources for the Silk Road in World History The Difficult Journey: Overcoming Harām in the Development of Islamic Ṭirāz Cultural Conceptions of Silk Road Trade and Merchant Activities in Medieval Eurasia Manichaeism on the Silk Road Introduction: The Silk Road World Expositions as Time Machines: Two Views of the Visual Construction of Time between Anthropology and Futurama The Soviet Union at the 20th-Century World's Fairs How Do Exhibitions Travel? A Case Study of the Indian National Congress Exhibitions Fair Representation? American Indians and the 1893 Chicago World's Columbian Exposition The Raw Materials of World History: Re-visiting the Great Exhibition's Objects Researching and Teaching Exhibitions: Opportunities for Engaging World History in Context Editor's Message
title: Организация самостоятельной работы по грамматике немецкого языка для студентов-бакалавров неязыковых вузов
Creators: name: ELS IPR BOOKS
Publisher: name: Издательство Владимирского государственного университета
Year: 2019

description: Содержит лексико-грамматический материал программы обучения 1-го и 2-го курсов для самостоятельной работы студентов: многочисленные упражнения и задания, снабжённые образцами их выполнения, позволяющие сформировать, реализовать и закрепить языковые знания, умения и навыки в рамках условной и реальной коммуникации. Предназначено для студентов неязыковых вузов очной формы обучения направления подготовки 44.03.05 «Педагогическое образование». Рекомендовано для формирования профессиональных компетенций в соответствии с ФГОС ВО.
title: COSMO Technical Report No. 36: The COSMO Priority Project VERSUS2 Final Report
Creators: name: Raspanti, A.
name: Celozzi, A.
name: Troisi, A.
name: Vocino, A.
name: Bove, R.
name: Batignani, F.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2018

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Percolation description of the global topography of Earth and Moon
Creators: name: Saberi, Abbas Ali
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Remarkable global correlations exist between geometrical features of terrestrial surface on the Earth, current mean sea level and its geological internal processes whose origins have remained an essential goal in the Earth sciences. Theoretical modeling of the ubiquitous self-similar fractal patterns observed on the Earth and their underlying rules is indeed of great importance. Here I present a percolation description of the global topography of the Earth in which the present mean sea level is automatically singled out as a critical level in the model. This finding elucidates the origins of the appearance of scale invariant patterns on the Earth. The criticality is shown to be accompanied by a continental aggregation, unraveling an important correlation between the water and long-range topographic evolution. To have a comparison point in hand, I apply such analysis onto the lunar topography which reveals various characteristic features of the Moon.
description: 5 pages, 6 figures, accepted in Phys. Rev. Lett
title: COSMO Technical Report No. 37: The COSMO Priority Project INSPECT Final Report
Creators: name: Bundel, A.
name: Gofa, F.
name: Alferov, D.
name: Astakhova, E.
name: Baumann, P.
name: Boucouvala, D.
name: Damrath, U.
name: Eckert, P.
name: Kirsanov, A.
name: Lapillonne, X.
name: Linkowska, J.
name: Marsigli, C.
name: Montani, A.
name: Muraviev, A.
name: Oberto, E.
name: Tesini, M.S.
name: Vela, N.
name: Wyszogrodzki, A.
name: Zaichenko, M.
name: Walser, A.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2019

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Synergistic approaches to ultra-precision high performance cutting
Creators: name: Schönemann, Lars
name: Berger, Daniel
name: Dörgeloh, Timo
name: Riemer, Oltmann
name: Brinksmeier, Ekkard
name: Krüger, Rudolf
name: Schreiber, Per
name: Denkena, Berend
name: Hochbein, Johannes
name: Parsa, Nasrin
name: Schenck, Christian
name: Kuhfuß, Bernd
Publisher: name: Amsterdam [u.a.] : Elsevier
Year: 2020
Subjects: subject: high speed cutting (HSC)
subject: iamond milling
subject: precision balancing
subject: tool alignment
subject: eletromagnetic linear guide
subject: model based precision controls
subject: Dewey Decimal Classification::600 | Technik

description: Diamond milling allows for the flexible production of optical and high precision parts, but suffers from poor setup and production speeds. This paper presents recent advances that aim towards achieving high performance (HPC) and high speed cutting (HSC) in ultra-precision machining. After a short introduction, the benefits of high speed cutting for both metals and brittle-hard materials are shown. Thereafter, novel mechatronic devices are presented that enable an automated balancing of the applied air bearing spindles and the application of multiple diamond tools on one tool holder and by thus, contribute to HPC. These developments are supplemented by a novel linear guiding system based on electromagnatic levitation that, along with a dedicated model-based control system, enables fast and precise movements of the machine tool. After presenting the recent developments in detail, their synergistic performance is assessed and an outlook to future developments is given. © 2020 The Authors
Elastic pp scattering from the optical point to past the dip: an empirical parametrization from ISR to LHC
Creators: name: Fagundes, Daniel A.
name: Grau, Agnes
name: Pacetti, Simone
name: Pancheri, Giulia
name: Srivastava, Yogendra N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe the main features of recent LHC data on elastic pp scattering through a simple parametrization to the amplitude, inspired by a model proposed by Barger and Phillips in 1973, comprising of two exponentials with a relative phase. Despite its simplicity, this parameterization reproduces two essential aspects of the elastic differential cross section, the well known precipitous descent in the forward direction and a sharp `dip' structure. To include a complete description of data sets near -t=0, we correct the original parametrization. We examine two possibilities, the presence of the two-pion threshold singularity or a multiplicative factor reflecting the proton form factor. We find good descriptions of LHC7 and ISR data in either case. The form factor model allows simple predictions for higher energies through asymptotic theorems and asymptotic sum rules in impact parameter space. We present predictions for this model at higher LHC energies, which can be used to test whether asymptotia is reached. The black disk limit in this model is seen to be reached only for energies near 10^6 TeV.
description: 19 pages, 26 figures, v2 with minor changes
title: COSMO Technical Report No. 38:  The COSMO Priority Project CORSO-A Final Report
Creators: name: Rivin, G.
name: Rozinkina, I.
name: Astakhova, E.
name: Montani, A.
name: Bettems, J.-M.
name: Alferov, D.
name: Blinov, D.
name: Eckert, P.
name: Euripides, A.
name: Helmert, J.
name: Shatunova, M.
Publisher: name: COSMO Consortium for Small-Scale Modelling
Year: 2019

description: The Technical Reports are intended mainly for internal use within the COSMO group (COSMO = Consortium for Small Scale Modeling), but also to inform other groups on model changes and research activities. The purpose of the Technical Reports is 1. to document scientific research activities, 2. to document technical changes to the model system, 3. to give an overview on new components of the model system.
Data traffic load balancing and QoS in IEEE 802.11 network: Experimental study of the signal strength effect
Creators: name: Soudani, Adel
name: Divoux, Thierry
name: Tourki, Rached
Publisher: name: arXiv
Year: 2012
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: The performances of multimedia applications built on wireless systems depend on bandwidth availability that might heavily affect the quality of service. The IEEE 802.11 standards do not provide performed mechanism for bandwidth management through data load distribution among different APs of the network. Then, an AP can be heavily overloaded causing throughput degradation. Load Balancing Algorithms (LBAs) was been considered as one of the attractive solution to share the traffic through the available access points bandwidths. However, applying the load balancing algorithm and shifting a mobile connection from an access point to another without considering the received signal strength indicator of the concerned APs might causes worst communication performances. This paper is a contribution to check the performance's limits of the LBA algorithm through experimental evaluation of communication metrics for MPEG-4 video transmission over IEEE 802.11 network. Then, the paper focuses on the proposition of a new LBA algorithm structure with the consideration of the RSS level.
Experimental Characterization and Material Modelling of an AZ31 Magnesium Sheet Alloy at Elevated Temperatures under Consideration of the Tension-Compression Asymmetry
Creators: name: Behrens, Bernd-Arno
name: Bouguecha, Anas
name: Bonk, Christian
name: Dykiert, M.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Automotive industry
subject: Characterization
subject: Drawing (forming)
subject: Magnesium
subject: Magnesium alloys
subject: Magnesium printing plates
subject: Materials testing
subject: Metal forming
subject: Metal testing
subject: Structural analysis
subject: Aerospace and automotive industries
subject: Characterization tests
subject: Elevated temperature
subject: Experimental characterization
subject: Hexagonal close packed lattices
subject: Orthotropic yield criterion
subject: Temperature dependent material parameters
subject: Tension-compression asymmetry
subject: Sheet metal
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Magnesium sheet alloys have a great potential as a construction material in the aerospace and automotive industry. However, the current state of research regarding temperature dependent material parameters for the description of the plastic behaviour of magnesium sheet alloys is scarce in literature and accurate statements concerning yield criteria and appropriate characterization tests to describe the plastic behaviour of a magnesium sheet alloy at elevated temperatures in deep drawing processes are to define. Hence, in this paper the plastic behaviour of the well-established magnesium sheet alloy AZ31 has been characterized by means of convenient mechanical tests (e. g. tension, compression and biaxial tests) at temperatures between 180 and 230 °C. In this manner, anisotropic and hardening behaviour as well as differences between the tension-compression asymmetry of the yield locus have been estimated. Furthermore, using the evaluated data from the above mentioned tests, two different yield criteria have been parametrized; the commonly used Hill'48 and an orthotropic yield criterion, CPB2006, which was developed especially for materials with hexagonal close packed lattice structure and is able to describe an asymmetrical yielding behaviour regarding tensile and compressive stress states. Numerical simulations have been finally carried out with both yield functions in order to assess the accuracy of the material models.
Users' Guide for GLIMPSE: a Tool for Integrated Air-Climate-Energy Planning (Version 1)
Creators: name: Loughlin, Daniel H.
name: Nolte, Christopher
Publisher: name: The United States Environmental Protection Agency’s Center for Computational Toxicology and Exposure
Year: 2023

description: GLIMPSE is a decision support tool being developed at the U.S. EPA to assist the EPA, states, and others with long-term environmental and energy planning. GLIMPSE is an acronym for the “GCAM Long-Term Interactive Multi-Pollutant Scenario Evaluator”, where GCAM is the “Global Change Analysis Model.” GCAM is a human-Earth systems model, developed by Pacific Northwest National Laboratory, which simulates the co-evolution of the economy, energy system, land use, and climate systems, including how this co-evolution is shaped by policy and other external factors. GLIMPSE acts as a graphical user interface for GCAM. Using GLIMPSE, decisionmakers and analysts at the national, regional, and state levels can examine potential policies, investigate the impacts of emerging technologies, develop cost-effective strategies for meeting air pollutant and greenhouse gas (GHG) mitigation targets, and explore the tradeoffs at the nexus of energy, water, and land use.
Relaying Technologies for Smart Grid Communications
Creators: name: Sun, Hongjian
name: Tan, Bo
name: Jiang, Jing
name: Thompson, John S.
name: Nallanathan, Arumugam
name: Poor, H. Vincent
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Wireless technologies can support a broad range of smart grid applications including advanced metering infrastructure (AMI) and demand response (DR). However, there are many formidable challenges when wireless technologies are applied to the smart gird, e.g., the tradeoffs between wireless coverage and capacity, the high reliability requirement for communication, and limited spectral resources. Relaying has emerged as one of the most promising candidate solutions for addressing these issues. In this article, an introduction to various relaying strategies is presented, together with a discussion of how to improve spectral efficiency and coverage in relay-based information and communications technology (ICT) infrastructure for smart grid applications. Special attention is paid to the use of unidirectional relaying, collaborative beamforming, and bidirectional relaying strategies.
description: 17 pages, 6 figures. This paper has been accepted to be published in IEEE Wireless Communications
Einschluss oder Zugriff: Tiefenlagerung ohne oder mit Vorkehrungen zur Rückholbarkeit
Creators: name: Röhlig, Klaus-Jürgen
name: Häfner, Daniel
name: Lux, Karl-Heinz
name: Hassel, Thomas
name: Stahlmann, Joachim
Publisher: name: München : Oekom - Gesellschaft fuer Oekologische Kommunikation mbH
Year: 2017
Subjects: subject: Fairness
subject: Nuclear waste
subject: Radioactive waste disposal
subject: Retrievability
subject: Safety
subject: Dewey Decimal Classification::500 | Naturwissenschaften

description: Sollte die Lagerung radioaktiver Abfälle in tiefen geologischen Formationen rückholbar gestaltet werden? Im Artikel werden Optionen zur Gestaltung einer Einlagerung beschrieben, Argumente für und gegen eine Rückholbarkeit wiedergegeben und Zielkonflikte dargelegt. Eine Entscheidung zur Rückholbarkeit kann aus technischen Gründen nicht beliebig verzögert werden. Schwierigkeiten auf dem Weg zu einer solchen Entscheidung sind jedoch abzusehen ‐ umso wichtiger ist eine frühzeitige prozedurale Ausgestaltung des hierfür notwendigen Diskurses.
Investigating the relationship between biodiversity and ecosystem multifunctionality: Challenges and solutions
Creators: name: Byrnes, Jarrett E. K.
name: Gamfeldt, Lars
name: Isbell, Forest
name: Lefcheck, Jonathan S.
name: Griffin, John N.
name: Hector, Andrew
name: Cardinale, Bradley J.
name: Hooper, David U.
name: Dee, Laura E.
name: Duffy, J. Emmett
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Populations and Evolution (q-bio.PE)
subject: Applications (stat.AP)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: Extensive research shows that more species-rich assemblages are generally more productive and efficient in resource use than comparable assemblages with fewer species. But the question of how diversity simultaneously affects the wide variety of ecological functions that ecosystems perform remains relatively understudied, and it presents several analytical and empirical challenges that remain unresolved. In particular, researchers have developed several disparate metrics to quantify multifunctionality, each characterizing different aspects of the concept, and each with pros and cons. We compare four approaches to characterizing multifunctionality and its dependence on biodiversity, quantifying 1) magnitudes of multiple individual functions separately, 2) the extent to which different species promote different functions, 3) the average level of a suite of functions, and 4) the number of functions that simultaneously exceed a critical threshold. We illustrate each approach using data from the pan-European BIODEPTH experiment and the R multifunc package developed for this purpose, evaluate the strengths and weaknesses of each approach, and implement several methodological improvements. We conclude that a extension of the fourth approach that systematically explores all possible threshold values provides the most comprehensive description of multifunctionality to date. We outline this method and recommend its use in future research.
description: This article has been submitted to Methods in Ecology & Evolution for review
Stochastic and equilibrium pictures of the ultracold FFR molecular conversion rate
Creators: name: Yamakoshi, Tomotake
name: Watanabe, Shinichi
name: Zhang, Chen
name: Greene, Chris H.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: The ultracold molecular conversion rate occurring in an adiabatic ramp through a Fano-Feshbach resonance is studied and compared in two statistical models. One model, the so-called stochastic phase space sampling (SPSS)[E.Hodby et al., PRL.94 120402(2005)] evaluates the overlap of two atomic distributions in phase space by sampling atomic pairs according to a phase-space criterion. The other model, the chemical equilibrium theory(ChET)[S.Watabe and T.Nikuni, PRA.77 013616(2008)] considers atomic and molecular distributions in the limit of the chemical and thermal equilibrium. The present study applies SPSS and ChET to a prototypical system of K+K K2 in all the symmetry combinations, namely Fermi-Fermi, Bose-Bose, and Bose-Fermi cases. To examine implications of the phase-space criterion for SPSS, the behavior of molecular conversion is analyzed using four distinct geometrical constraints. Our comparison of the results of SPSS with those of ChET shows that while they appear similar in most situations, the two models give rise to rather dissimilar behaviors when the presence of a Bose-Einstein condensate (BEC) strongly affects the molecule formation.
description: 25 pages, 14 figures
Users' Guide for GLIMPSE: a Tool for Integrated Air-Climate-Energy Planning (Version 1)
Creators: name: Loughlin, Daniel H.
name: Nolte, Christopher
Publisher: name: The United States Environmental Protection Agency’s Center for Computational Toxicology and Exposure
Year: 2023
Subjects: Environmental assessment and monitoring

description: GLIMPSE is a decision support tool being developed at the U.S. EPA to assist the EPA, states, and others with long-term environmental and energy planning. GLIMPSE is an acronym for the “GCAM Long-Term Interactive Multi-Pollutant Scenario Evaluator”, where GCAM is the “Global Change Analysis Model.” GCAM is a human-Earth systems model, developed by Pacific Northwest National Laboratory, which simulates the co-evolution of the economy, energy system, land use, and climate systems, including how this co-evolution is shaped by policy and other external factors. GLIMPSE acts as a graphical user interface for GCAM. Using GLIMPSE, decisionmakers and analysts at the national, regional, and state levels can examine potential policies, investigate the impacts of emerging technologies, develop cost-effective strategies for meeting air pollutant and greenhouse gas (GHG) mitigation targets, and explore the tradeoffs at the nexus of energy, water, and land use.
title: Общая психология
Creators: name: ELS IPR BOOKS
Publisher: name: Издательство Владимирского государственного университета
Year: 2018

description: Излагаются представления о психологических особенностях человека, закономерностях его деятельности и обучения; раскрывается психологический аспект профессиональной подготовки будущих педагогов путем расширения представлений о фундаментальности психологии, её прикладном характере, исторически сложившихся и современных подходах к решению психологических проблем жизни и деятельности человека, его развитии, образовании и воспитании. Способствует формированию общекультурных и профессиональных компетенций будущих педагогов, а также развитию навыков самостоятельной работы студентов. Предназначено для студентов первого-второго курсов очной формы обучения, получающих степень бакалавра по направлению подготовки 44.03.01 – Педагогическое образование. Рекомендовано для формирования профессиональных компетенций в соответствии с ФГОС ВО.
title: The implementation of Pre-Lecture Resources to Reduce In-Class Cognitive Load: A Case Study for Higher Education Chemistry
Creators: name: Seery, Michael
name: Donnelly, Roisin
Publisher: name: Technological University of Dublin
Year: 2011

description: This case study describes an effective method to ameliorate the cognitive load caused by new terminology and concepts in lectures. Ten online pre-lecture resources whose design was underpinned by the principles of cognitive load theory were provided to a class of 49 first year university level chemistry students. Each resource introduced a number of key concepts to the forthcoming lecture and included a quiz for students to test understandings and identify misconceptions. The evaluation of the implementation of resources was measured by considering the difference in exam marks for in-semester test and end of module exam. These showed that the marks for students who had no prior knowledge of chemistry before coming to college significantly improved to the point that there was no difference between students with and without prior knowledge. A key outcome of this work is that providing students with resources to prepare for lectures can help in reducing their cognitive load
Design and test of a 10kW ORC supersonic turbine generator
Creators: name: Seume, Jörg R.
name: Peters, M.
name: Kunte, H.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Aerodynamics
subject: Computational fluid dynamics
subject: Fluid dynamics
subject: Propulsion
subject: Rankine cycle
subject: Test facilities
subject: Thermodynamics
subject: Turbines
subject: Combustion engines
subject: Design and tests
subject: Impulse turbines
subject: Mechanical design
subject: Numerical computations
subject: Organic Rankine Cycle(ORC)
subject: Remaining energies
subject: Turbine generator unit
subject: Turbogenerators
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Manufactures are searching for possibilities to increase the efficiency of combustion engines by using the remaining energy of the exhaust gas. One possibility to recover some of this thermal energy is an organic Rankine cycle (ORC). For such an ORC running with ethanol, the aerothermodynamic design and test of a supersonic axial, single stage impulse turbine generator unit is described. The blade design as well as the regulation by variable partial admission is shown. Additionally the mechanical design of the directly coupled turbine generator unit including the aerodynamic sealing and the test facility is presented. Finally the results of CFD-based computations are compared to the experimental measurements. The comparison shows a remarkably good agreement between the numerical computations and the test data.
Blind Interference Suppression and Power Adjustment with Alternating Optimization for Cooperative DS-CDMA Networks
Creators: name: de Lamare, Rodrigo C.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: This work presents blind joint interference suppression and power allocation algorithms for DS-CDMA networks with multiple relays and decode and forward protocols. A scheme for joint allocation of power levels across the relays subject to group-based power constraints and the design of linear receivers for interference suppression is proposed. A code-constrained constant modulus (CCM) design for the receive filters and the power allocation vectors is devised along with a blind channel estimator. In order to solve the proposed optimization efficiently, an alternating optimization strategy is presented with recursive least squares (RLS)-type algorithms for estimating the parameters of the receiver, the power allocation and the channels. Simulations show that the proposed algorithms obtain significant gains in capacity and performance over existing schemes.
description: 2 figures. arXiv admin note: substantial text overlap with arXiv:1301.5912, arXiv:1304.1935
HR development in local government: how and why does HR strategy matter in organizational change and development?
Creators: name: Bruns, Hans-Jürgen
Publisher: name: Heidelberg : Springer
Year: 2014
Subjects: subject: Strategic human resource planning
subject: Finance
subject: Human resources
subject: Public sector
subject: German
subject: Economics
subject: Human resource management
subject: Local government
subject: Public service
subject: Public administration
subject: Modernization theory
subject: Knowledge management
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::330 | Wirtschaft

description: Human resource (HR) management has been proposed as being one of the core drivers of the modernization of the public sector, in particular with reference to the changing nature of people management and ‘HR-public service partnerships’ as an antecedent capacity of modernizing public service organizations. Notwithstanding the ongoing interest in the transformation of HR systems, this study explores how and why such relationships between HR management (HRM) and organizational change emerge. Considering a resource and capability-based approach, the analysis reveals strategic HRM practices as a useful concept to distinguish HR activities and the processes that are occurring when a HR strategy is performed. Moreover, using a multiple case study design, the study exhibits the antecedents and effects of HR strategy formation during accounting change in six German local governments. The results provide evidence that forces of either strategic or administrative patterns of alignment refer to different layers and the sequencing of HRM activities within a process of HR system change, thereby revealing the possibility of contradictory effects induced by HR change agency on either the ‘HR’ or the ‘public service’ side of the strategic coin.