bluuebunny/crossref_metadata_2025 huggingface dataset:
Forward Looking Radar Imaging by Truncated Singular Value Decomposition and Its Application for Adverse Weather Aircraft Landing
Authors: Huang Yulin , Zha Yuebo , Wang Yue , Yang Jianyu
Published: June 2015

The forward looking radar imaging task is a practical and challenging problem for adverse weather aircraft landing industry. Deconvolution method can realize the forward looking imaging but it often leads to the noise amplification in the radar image. In this paper, a forward looking radar imaging based on deconvolution method is presented for adverse weather aircraft landing. We first present the theoretical background of forward looking radar imaging task and its application for aircraft landing. Then, we convert the forward looking radar imaging task into a corresponding deconvolution problem, which is solved in the framework of algebraic theory using truncated singular decomposition method. The key issue regarding the selecting of the truncated parameter is addressed using generalized cross validation approach. Simulation and experimental results demonstrate that the proposed method is effective in achieving angular resolution enhancement with suppressing the noise amplification in forward looking radar imaging.
Hands-On Experiences in Deploying Cost-Effective Ambient-Assisted Living Systems
Authors: Dasios Athanasios , Gavalas Damianos , Pantziou Grammati , Konstantopoulos Charalampos
Published: June 2015

Older adults’ preferences to remain independent in their own homes along with the high costs of nursing home care have motivated the development of Ambient Assisted Living (AAL) technologies which aim at improving the safety, health conditions and wellness of the elderly. This paper reports hands-on experiences in designing, implementing and operating UbiCare, an AAL based prototype system for elderly home care monitoring. The monitoring is based on the recording of environmental parameters like temperature and light intensity as well as micro-level incidents which allows one to infer daily activities like moving, sitting, sleeping, usage of electrical appliances and plumbing components. The prototype is built upon inexpensive, off-the-shelf hardware (e.g., various sensors, Arduino microcontrollers, ZigBee-compatible wireless communication modules) and license-free software, thereby ensuring low system deployment costs. The network comprises nodes placed in a house’s main rooms or mounted on furniture, one wearable node, one actuator node and a centralized processing element (coordinator). Upon detecting significant deviations from the ordinary activity patterns of individuals and/or sudden falls, the system issues automated alarms which may be forwarded to authorized caregivers via a variety of communication channels. Furthermore, measured environmental parameters and activity incidents may be monitored through standard web interfaces.
Autour du Jardin des Vestiges à Marseille (Bouches-du-Rhône) : fragments d’histoire médiévale et moderne
Authors: Scherrer Nadine
Published: June 2015

Around the Jardin des Vestiges in Marseille (Bouches-du-Rhône) : fragments of the Middle Ages and Modern history.

This article shows the results of a diagnostic campaign in blinded wells carried on in Marseille. These surveys are located around the Jardin des Vestiges, a garden in which are maintained the vestiges of the antique port and of the way called of Italy opening to one of the doors in the antique city rampart. Thus they are outside the walls but nearby the surrounding walls, in an area that has been developing over the Middle Ages and during the modern period. The little information gathered is put in relation with what is known from the texts and older excavations made in the surrounding area. Since no excavation has been done up to now after this expertise campaign, it appeared appropriate to publish the results.
Un aperçu de Saint-Pons-de-Thomières (Hérault) à la fin du Moyen Âge à partir des sources planimétriques, fiscales et archéologiques
Authors: Rivals Cécile
Published: June 2015

La ville de Saint-Pons-de-Thomières dans l’Hérault dispose de compoix de la fin du Moyen Âge et du début de l’époque Moderne. L’étude de ces documents fiscaux a éclairé certains aspects de cette petite ville au Moyen Âge, par le biais de la méthode régressive. Cette étude, menée dans le cadre d’un master recherche, a bénéficié d’un double éclairage, elle a associé une approche morphologique et une approche monumentale. En croisant les compoix étudiés avec l’analyse de plans anciens et de vestiges bâtis conservés, il a été possible de comprendre l’organisation de la ville et son développement. Une méthodologie a été élaborée pour traiter ces sources de natures différentes. Cet article présente cette méthode et montre l’apport d’une approche multipliant les angles de vue pour saisir les dynamiques d’évolution morphologiques d’une petite ville à la fin du Moyen Âge.
Effets des structures agraires sur le ruissellement et l'érosion hydrique (Relationships between rural environment, runoff and erosion)
Authors: Papy François
Published: June 2015

Abstract. - This paper deals about the relationships between the rural environment and water induced processes of erosion (by splash, sheet erosion, rill and interrill, gullying). It studies the part played in runoff and erosion by the characteristics of the catchment and of the rural space (boundaries of farms, fields and fragments) and the implications of changes in land use and management practices. Examples chosen in the Pays de Caux.
Les rythmes d'évolution morphologique des vallées françaises au Tardiglaciaire et à l'Holocène. Rapport de synthèse. Discussions (The rythms of the evolution of the french valleys during the Tardiglacial period and the Holocene)
Authors: Bravard Jean-Paul
Published: June 2015

Résumé. - Une synthèse des études récentes portant sur les remplissages des vallées françaises met en relief l'existence de trois phases principales. Au Tardiglaciaire, les processus de formation de la charge et de transit dans les lits fluviaux à chenaux multiples sont intenses et généralisés. La première partie de l'Holocène est caractérisée par la stabilisation des versants, par la reprise fluviale des matériaux hérités de la période précédente, et par l'importance de la sédimentation organique dans les milieux de plaine. A partir du Subboréal et au Subatlantique, les fonds de vallée enregistrent une série de crises, notamment au Premier âge du fer et au Petit âge glaciaire ; elles se manifestent par la progradation de nappes caillouteuses sur les piémonts, par l'exhaussement des lits et le tressage fluvial.
Understanding Motivations and Benefits of Attending a Multicultural Festival
Authors: Lee Insun Sunny , Huang Songshan (Sam)
Published: June 2015

This study explores why people attend a multicultural festival and what benefits they perceive they gain from attending such a festival. Semistructured in-depth interviews were conducted with festival visitors of a multicultural festival held in Adelaide, Australia. A multilayered structure
of motivation and benefit themes was identified through thematic content analysis of the interview data; differences of motivations and benefits of attending the multicultural festival were found between festival visitors whose self-identified ethnic cultures were represented at the festival
and those whose cultures were not featured. The study suggests that multicultural festival visitors gain broad festival experiences that lead to enduring benefits that center around the development of multiculturalism values. This study contributes to the literature in theorizing a context-driven
approach in festival visitor studies through exploring context-specific visitor motivations and benefits at multicultural festivals.
New York City Bed Bug Crisis as Framed by Tourists on Tripadvisor
Authors: Liu Bingjie , Pennington-Gray Lori , Donohoe Holly , Omodior Oghenekaro
Published: June 2015

In New York City (NYC), one of the world's top tourism destinations, bed bugs have reemerged as a challenge to the hospitality industry regardless of a hotel's star rating, location, ranking, or other. Given this growing tourism and hospitality management problem, the purpose of this
study was to understand how the NYC bed bug crisis was framed on social media by travelers and how it impacted tourist experiences of NYC. Four general narrative frames and 14 subframes were identified in the analysis and the findings confirm that bed bugs have become a real and growing concern
for tourists, and they are using social media to report their bed bug experiences. The significance and implications for hotel and destination management are discussed.
Comparing Effectiveness with Efficacy: Outcomes of Palliative Chemotherapy for Non-Small-Cell Lung Cancer in Routine Practice
Authors: Harrison L.D. , Zhang-Salomons J. , Mates M. , Booth C.M. , King W.D. , Mackillop W.J.
Published: June 2015

Introduction: Randomized controlled trials (RCTS) are the “gold standard” for establishing treatment efficacy; however, efficacy does not automatically translate to a comparable level of effectiveness in routine practice. Our objectives were to (1) describe outcomes of palliative platinum-doublet chemotherapy (PPDC) in non-small-cell lung cancer (NSCLC) in routine practice, in terms of survival and well-being; and (2) compare the effectiveness of PPDC in routine practice with its efficacy in RCTS. Methods: Electronic treatment records were linked to the Ontario Cancer Registry to identify patients who underwent PPDC for NSCLC at Ontario’s regional cancer centres between April 2008 and December 2011. At each visit to the cancer centre, a patient’s symptoms are recorded using the Edmonton Symptom Assessment System (ESAS). Score on the esas “well-being” item was used here as a proxy for quality of life (QOL). Survival in the cohort was compared with survival in RCTS, adjusting for differences in case mix. Changes in the ESAS score were measured 2 months after treatment start. The proportion of patients having improved or stable well-being was compared with the proportion having improved or stable QOL in relevant RCTS. Results: We identified 906 patients with pre-PPDC ESAS records. Median survival was 31 weeks compared with 28–48 weeks in RCTS. After accounting for deaths and cases lost to follow-up, we estimated that, at 2 months, 62% of the cohort had improved or stable well-being compared with 55%–63% who had improved or stable QOL in RCTS. Conclusions: The effectiveness of PPDC for NSCLC in routine practice in Ontario is consistent with its efficacy in RCTS, both in terms of survival and improvement in well-being.
Quarternization of 3-azido-1-propyne oligomers obtained by copper(I)-catalyzed azide–alkyne cycloaddition polymerization
Authors: Nakano Shun , Hashidzume Akihito , Sato Takahiro
Published: June 2015

3-Azido-1-propyne oligomer (oligoAP) samples, prepared by copper(I)-catalyzed azide–alkyne cycloaddition (CuAAC) polymerization, were quarternized quantitatively with methyl iodide in sulfolane at 60 °C to obtain soluble oligomers. The conformation of the quarternized oligoAP in dilute DMSO-d6 solution was examined by pulse-field-gradient spin-echo NMR based on the touched bead model.
BEHAVIOUR OF TRUCK’S COMPRESSOR’S CONNECTING RODS MADE OF ALUMINIUM ALLOY UNDER DIFFERENT MANUFACTURING CONDITIONS
Authors: Kandrotaitė-Janutienė Rasa
Published: June 2015

The main objective of this study was to explore quality increasing and cost reduction opportunities for a production of forged aluminium alloy 6082 connecting rods. These automotive parts are used for air compressors’ of the trucks. Connecting rods undergoes high cyclic loads during exploitation, therefore, the durability of this component is of a critical importance. The main factors characterizing high durability of the connecting rod are hardness and impact strength that may be achieved selecting the proper technology regimes. The main requirements for the aluminium alloy 6082 are hardness in the range of 90–120 HB and impact strength not less than 29.2 J/cm2. Furthermore, the main problem is a stability of testing results of randomly picked connecting rods as these parts are produced in big quantities for the export purposes. Our experiments and recommendations for the development of technology of connecting rods’ allowed maintaining the requirement in hardness, increasing the impact strength approximately twice and reducing the time needed for the production of one connecting rod as it let to save the cost of the part.
Le développement durable en perspective historique : l’exemple des tanneries
Authors: Perrin Cédric
Published: June 2015

L’industrie du tannage est présentée aujourd’hui, par ses propres entreprises mais aussi dans les médias, comme une championne du développement durable grâce au retour de la méthode végétale, délaissée depuis le début du XX e siècle. L’argumentation pose problème par rapport à la notion de développement durable elle-même, mais aussi au regard de l’histoire de la filière qui est au contraire parmi les plus polluantes. L’abandon du tannage végétal au tournant des XIX e et XX e siècles doit être compris en resituant cette évolution technique dans son cadre économique et social. L’adhésion au développement durable apparaît bien, dès lors, comme une évolution récente en réponse aux difficultés du secteur.
De la coopération intégrale à la réforme de l’entreprise : l’intéressement salarial au prisme du Familistère de Guise
Authors: Dos Santos Jessica
Published: June 2015

La Société du Familistère de Guise est une entreprise démocratique fondée en 1880 par Jean-Baptiste Godin, industriel partisan d’un socialisme réformiste. Il y applique les principes coopératifs de la « participation », terme à comprendre comme un partage avec les ouvriers de la gestion de l’entreprise, de son capital et de ses bénéfices. Jusqu’en 1968, cette société conserve, malgré les épreuves, ce fonctionnement original et devient ainsi un modèle pour les défenseurs de la participation aux bénéfices. À travers leur histoire et leurs archives, on constate une forte évolution du sens pris par ce terme de « participation » : d’abord prônée par les partisans de la coopération, cette politique salariale est ensuite envisagée par une partie du patronat avant de finalement prendre une forme législative très éloignée des idéaux d’origine.
Le postfordisme comme mythe et idéologie de la sociologie économique. Du consommateur à la construction sociale du marché automobile
Authors: Jullien Bernard , Pardi Tommaso
Published: June 2015

Ce papier déconstruit le modèle explicatif postfordiste de la crise des années 1970 en se focalisant sur la transformation de l’industrie automobile occidentale depuis le début des années 1980. Les auteurs montrent que le passage à une offre de plus en plus pléthorique de modèles renouvelés plus rapidement n’était pas tiré par la demande « postfordienne » d’un nouveau « consommateur roi », mais poussé par une évolution des stratégies des entreprises endogène à la conception du contrôle du secteur. Ils questionnent ainsi la tendance de la sociologie économique française à traiter exclusivement le marché comme un espace de transactions centré sur le consommateur.
Vers une lutte des cadres ?
Authors: Flocco Gaëtan
Published: June 2015

Au cours des années 2000, plusieurs enquêtes ont mis en évidence des résistances et des luttes menées par les cadres contre les pratiques organisationnelles et managériales des entreprises. Cet article interroge les portées et les limites de ces résultats à la lumière de deux enquêtes de terrain réalisées auprès de cadres d’entreprises en France. Il montre que cette catégorie spécifique de salariés n’est certes pas étrangère à l’expression de critiques, aux contournements des règles organisationnelles, voire à des formes de retrait à l’égard du travail. Ces représentations et ces pratiques peuvent cependant difficilement être rassemblées sous les catégories de résistance, de lutte ou de rébellion. Leur portée demeure effectivement relative et limitée au regard des facteurs de consentement qui, eux, subsistent et sont multiples.
La force de l’âge du sexe faible. Gynécologie médicale et construction d’une vie féminine
Authors: Ruault Lucile
Published: June 2015

La gynécologie représente une instance clé dans la division sociale du travail de santé entre femmes et hommes, participant de leurs rapports inégaux au corps et à la maladie. À partir de l’analyse de discours et d’observations réalisées dans le cadre d’un mémoire de sociologie politique sur le groupe professionnel des gynécologues médicales, il s’agit de comprendre la façon dont cette spécialité opère, dans un même mouvement : la construction d’un sexe surdéterminant, pivot des corps féminins – en les appréhendant sous l’angle de l’activité sexuelle et reproductive ; la hiérarchisation des âges des femmes – analysée à travers la prescription de parcours contraceptifs stéréotypés.
Spécisme, sexisme et racisme. Idéologie naturaliste et mécanismes discriminatoires
Authors: Fernandez Jonathan
Published: June 2015

L’étude présentée dans cet article s’attache à faire le pont entre la critique radicale des rapports sociaux issue des analyses des féministes matérialistes et la question de notre rapport aux animaux. Autrement dit, elle questionne l’élargissement des réflexions égalitaristes à la catégorie des animaux. S’appuyant sur une enquête exploratoire effectuée par questionnaire en 2009, la recherche a pour but de comprendre si la discrimination sur la base du critère d’espèce, appelée spécisme , entretient des liens avec des formes de discriminations interhumaines, en l’occurrence le sexisme et le racisme. Les résultats des analyses statistiques mettent en évidence que le spécisme est une construction sociale qui fait système, en interaction avec les classes de sexe et de race, dont il partage les fondements idéologiques, notamment la naturalisation des catégories. La recherche montre également que le spécisme occupe une place essentielle dans les mécanismes discriminatoires en général.
La banalité du mâle. Louis Althusser a tué sa conjointe, Hélène Rytmann-Legotien, qui voulait le quitter
Authors: Dupuis-Déri Francis
Published: June 2015

L’article propose un retour sur l’assassinat, en 1980, d’Hélène Rytmann-Legotien par son mari, Louis Althusser, alors célèbre philosophe marxiste enseignant à l’École normale supérieure, à Paris. Il s’agit de saisir la signification politique de ce meurtre et du discours psychologisant diffusé dans l’espace public pour déresponsabiliser, voire justifier, le meurtrier. À la lumière d’analyses féministes des discours sur la violence masculine contre les femmes (Mélissa Blais, Patrizia Romito, Jalna Hanmer), l’article rappelle le contexte social du meurtre (le patriarcat français dans les années 1970 et 1980), avant de discuter du phénomène de protection et de solidarité masculine dont peut bénéficier un homme qui assassine son épouse mais qui est doté d’un fort capital social et culturel. Une attention particulière est portée aux manœuvres par lesquelles le meurtrier et ses alliés ou amis parviennent à le faire paraître comme victime et à faire disparaître dans son ombre la véritable victime assassinée.
A Theory of Thermoelectric Energy Harvesting Systems
Authors: Edwards Hal , Debord Jeff , Tran Toan , Freeman Dave , Maggio Kenneth
Published: June 2015

This chapter presents a study of thermoelectric energy harvesting with nano-sized thermopiles (nTE) in a planar 65 nm silicon CMOS process. These devices generated power from a 5C temperature difference at a density comparable to commercially available thermoelectric generators, following a metric used in the research literature (Hudak, 2008). By analyzing these devices as a thermoelectric harvesting system, the authors explore the impact of additional performance metrics such as heat source/sink thermal impedance, available heat flow density, and voltage stacking, providing a more comprehensive set of criteria for evaluating the suitability of a thermal harvesting technology. The authors use their thermoelectric system theory to consider the prospects for several thermoelectric energy harvesting applications.
Nonlinear Dynamics and Design of Aeroelastic Energy Harvesters
Authors: Abdelkefi Abdessattar
Published: June 2015

The concept of harvesting energy from flow-induced vibrations has received a great deal of attention in the last few years. This technology would help in the replacement of small batteries that require expensive and time consuming maintenance and development of self-powered electronic devices, such as health monitoring sensors, medical implants, data transmitters, wireless sensors, and cameras. In this chapter, a particular focus is paid to the concept of harvesting energy from aeroelastic instabilities, such as flutter in airfoil sections, vortex-induced vibrations in circular cylinders, and galloping in prismatic structures. Nonlinear electroaeroelastic models for these energy harvesters are derived and validated with experimental measurements. It is shown how linear and nonlinear analyses can be used to breach traditional barriers in the design and performance enhancement of these aeroelastic energy harvesters, characterization of their behaviors, and identification of the contribution of different types of nonlinearities.
Multi-Scale, Multi-Dimensional Modelling of Future Energy Systems
Authors: Spataru Catalina , Koch Andreas , Bouffaron Pierrick
Published: June 2015

This chapter provides a discussion of current multi-scale energy systems expressed by a multitude of data and simulation models, and how these modelling approaches can be (re)designed or combined to improve the representation of such system. It aims to address the knowledge gap in energy system modelling in order to better understand its existing and future challenges. The frontiers between operational algorithms embedded in hardware and modelling control strategies are becoming fuzzier: therefore the paradigm of modelling intelligent urban energy systems for the future has to be constantly evolving. The chapter concludes on the need to build a holistic, multi-dimensional and multi-scale framework in order to address tomorrow's urban energy challenges. Advances in multi-scale methods applied to material science, chemistry, fluid dynamics, and biology have not been transferred to the full extend to power system engineering. New tools are therefore necessary to describe dynamics of coupled energy systems with optimal control.
From the Smart City to the People-Friendly City
Authors: Melis Giulia , Masala Elena , Tabasso Matteo
Published: June 2015

This chapter addresses the smart city concept as a first step towards the formulation of a new socially-improved urban concept which may be defined as that of the “people-friendly city”. This new task involves the employment of IT tools, but using new methods and pursuing different goals other than mere numerical information. In terms of the urban environment, this means that cities should be designed for people, and planning practitioners should be able to understand citizens' needs, communicate with them and involve them in a collaborative process. Therefore, an overview of the implications of smart cities for urban planning is followed by a more detailed analysis of Planning Support Systems (PSS) as innovative tools for enhancing the process of delivering a more inclusive and people-friendly urban environment. The lessons learnt from the application of the PSS tool is then illustrated in order to define the potentialities and key points for the development of similar tools.
Towards a Competitive Sustainable City
Authors: Privitera Donatella
Published: June 2015

This chapter analyses the dynamic of the development of cycling in Italy situating it also in the European context from an economic and strategic perspective. With this aim, first there was a study of the challenge of rapidly growing urban populations in spatially very limited areas affects not only residential housing construction. It also relates to urban infrastructure and services. This led to identification of new mobility needs, met mainly by private means, with implications in terms of congestion and air pollution. Results are analysed in terms of total trips of non-motorized urban mobility and help at understanding how promoting cycling is important for individual health, environmental sustainability and transport demand management. The chapter brings the debate on sustainable transport policy into direct confrontation with the embodied practice of cycling in an urbanized environment.
The Influence of Information and Communication Technologies on Societies and their Cultures
Authors: Allen Lee
Published: June 2015

In this chapter, the various ways technologies have exerted influence upon cultures and societies since the dawn of human existence is examined. Be it man-made fire, sharpened stone tools and weapons, or cave paintings, humans are always inventing “something” to sustain or improve their lives and/or livelihoods, and generally make their existence more tolerable – and comfortable. The culture surrounding and thus influenced by technological advances differs from traditional definitive criteria of groups. A technologically-influenced society and culture is identified by its populace's ability to access and use its defining technologies. Nowadays social communication and interactions often occur with others across cultures, continents and socioeconomic systems as constantly evolving information technologies emerge as communication tools. In order to understand the role of technology's influence on our societies, we must understand the historical significance of various information and communications technologies' influence on culture and how changes in our interactions and relationships across all groups have occurred as a result.
Big Data Based Logistics Data Mining Platform: Architecture and Implementation
Authors: Gao Fei , Zhao Qilan
Published: June 2015

With the development of intelligent logistics, enormous amount of logistics data are be-coming one of the sources of big data. Building the logistics information platform with big data mining and analysis capabilities to make full use of the huge logistics data is the inexorable trend for intelligent logistics. This paper studied the characteristics of the logistics big data, then, a big data based logistics data mining platform is designed and implemented by utilizing big data processing and storage techniques. The architecture and functions of the platform will be described in detail. This paper also studied the mining steps and requirements for logistics data mining, which is significant for practical applications.
The CPS-Based Simulation of Indoor Thermal Comfort Control with Energy Saving
Authors: Wang Jinlong , Zhao Qianchuan , Zhao Yin
Published: June 2015

Thanks to the advances of computer science, communication technology and control technology, more and more complicated cyber-physical systems (CPSs) are created to provide services in the field of smart building, traffic transportation, industry automation et al. Modeling and simulation has become an import part of the design, test and validation processes for such complicated systems. In this paper, the authors propose a CPS-based simulation method for the indoor thermal comfort control problem. Their method is based on multi-agent technology. Different human models are analyzed based on comfort and energy cost to show the effectiveness of simulation and potential of energy saving.
Investigation of Residual Stresses in Thin-Walled Structure and Slender Web
Authors: Snirc Lubos , Ravinger Jan
Published: June 2015

Presented paper offers simplified equations for evaluation of residual stresses. Residual stresses are very important for evaluation of properties of steel thin-walled structures. They play a crucial role in definition of ultimate load and stiffness properties. Generally the residual stresses must be in equilibrium. In the case of statically determinate beam structures residual stresses do not have influence for natural frequency. But in case of plate structures situation is different. Relationship between residual stresses and natural frequency can be used as the base for preparation of non-destructive method for the investigation of residual stresses in thin-walled structures.
The Creep of the Cement Mortar with Relation of Cement and Sand in Same Relation
Authors: Padevět Pavel , Bittnar Petr
Published: June 2015

The paper is focused on the measurement of creep and shrinkage and on the describing of measuring data reconstruction. The cement mortar was prepared from Portland cement and sand in relation 1:1. The cement mortar was tested in water saturated and dried conditions [1]. The tested specimens were four months old. The raw data were damaged by power outages. Evaluation of creep measurements of the reconstructed data was carried out and is presented.
Influence of the Load-Bearing System of a High-Rise Building on its Stiffness
Authors: Ivankova Olga , Konecna Lenka
Published: June 2015

Static and dynamic analysis of the high-rise (24-storey) building is discussed in this paper. The influence of the change of load-bearing system on its stiffness in the case of seismic event was detected. Two different load-bearing systems were chosen – the wall system (alt.1) and the skeleton system (alt.2). Finite element method was used for the solution of 3D computing models. Short description of the building, used material, applied load, a type of the subsoil and obtained results are mentioned. Dynamic analysis was repeated for four various seismic areas in Slovakia.
Influence of Type of Contact of RC Beam and Strengthening Slab on Limit States of Strengthened Element
Authors: Krizma Martin , Petrzala Jaromir , Kišac Marián
Published: June 2015

The paper deals with an issue of strengthening of damaged RC beams by a coupling slab. Within the experimental programme, the non-strengthened beams had been first loaded up to the level 0.7, consequently were strengthened by an overconcreted slab and loaded up to the failure. The mutual coupling was performed by different techniques. We complete obtained results of tests of an influence of a contact type of a repaired beam and a slab on a resistance, serviceability characteristics and a failure mode of a resultant strengthened element. The experimental results are compared, and thus serve as their verification, with designed values of resistance determined according to the corresponding standard and also with results of numerical simulations performed using the commercial software ATENA.
Elastic Buckling and Post-Buckling of Von Mises Planar Trusses
Authors: Kalina Martin , Kala Zdenek , Frantik Petr
Published: June 2015

The article deals with the computational model of an elastic von Mises planar truss. The description of a mathematical concept, which is intended for the creation of computational programmes based on a finite number of segments, is presented. The mathematical solution is suitable for the analysis of load-deflection curves. Structural deformation is evaluated by seeking the minimal potential energy. The article examines the effects of change in the vertical displacement of the top joint on strut axes. The step by step incremental method is used in combination with the Newton-Raphson method. The presented study is aimed at the evaluation of the force in the bifurcation point, which determines the moment when loading of the model causes passing from the pre-critical effect (attainment of maximum vertical load action) to the post-critical effect. Symmetric and asymmetric initial axis imperfections are considered and relevant symmetric and asymmetric shapes of buckling are identified. The stability problem of the von Mises truss is discussed in connection with the random effects of imperfections.
Effect of a Nonlinear Term in a Strain-Displacement Relationship on the Load-Displacement Path of Von Mises Truss
Authors: Havran Jozef , Psotny Martin
Published: June 2015

Von Misses truss is one of the best examples to explain different theoretical approaches, nature of non-linear solution, define the snap-through, illustrate interactive buckling, etc. The presented paper compares two nonlinear approaches to the problem. Effect of nonlinear terms in strain-displacement relationship on the load level in critical point of nonlinear solution is analyzed. To obtain the nonlinear equilibrium paths, the Newton-Raphson iteration algorithm is used. Corresponding levels of the total potential energy are defined. The peculiarities of the effects of the initial imperfections are investigated. Custom FEM computer program has been used for analysis. Full Newton-Raphson procedure, in which the stiffness matrix is updated at every equilibrium iteration, has been applied. Obtained results are compared with results of the nonlinear analysis using ANSYS system, element type BEAM3 is used. The arc-length method is chosen for analysis, the reference arc-length radius is calculated from the load increment. Only fundamental path of nonlinear solution has been presented.
Analysis of Reinforced Concrete Slab Structures
Authors: Sucharda Oldrich , Kubosek Jan
Published: June 2015

The paper deals with the designing and analysing of concrete structures. A particular attention is paid to a multi-segment slab made from reinforced concrete. The purpose of the paper is to evaluate, in a non-linear analysis, impacts of input parameters of the concrete on the real load-carrying capacity of the ceiling which has been designed originally in DeMKP. FEM software applications have been used in the analysis. This is an in-house application DeMKP for designing the systems in line with standardised procedures. Another software is ATENA Science which can be used for non-linear analyses.
Assessment of the impact of symbiont Ophiostomatales (Fungi) on mountain pine beetle (Coleoptera: Curculionidae) performance on a jack pine (Pinaceae) diet using a novelin vitrorearing method
Authors: Myrholm Colin L. , Langor David W.
Published: June 2015

A novel “rearing-tube” method was developed and used to investigate the performance of mountain pine beetle (MPB),Dendroctonus ponderosaeHopkins (Coleoptera: Curculionidae: Scolytinae), with its three main ophiostomatalean fungal symbionts,Grosmannia clavigera(Robinson-Jeffrey and Davidson) Zipfel, de Beer, and Wingfield (Ophiostomataceae),Ophiostoma montium(Rumbold) von Arx (Ophiostomataceae), andLeptographium longiclavatumLee, Kim, and Breuil (Ophiostomataceae). Transparent glass tubes filled with sterile ground jack pine (Pinus banksianaLambert; Pinaceae) phloem and sapwood (9:1 ratio) were used to rear MPB from egg to adult with each fungus under controlled environmental conditions. Mountain pine beetle mortality was higher and development longer in fungus-free controls compared to fungal treatments. Among fungal treatments, insects developed faster, constructed shorter larval galleries, and had fewer supernumerary instars withL. longiclavatum.Insect survival was not affected by fungal treatments. Hyphal extension through the rearing medium was fastest forL. longiclavatum. Phloem nitrogen was reduced significantly by the presence ofL. longiclavatum.Results support the hypothesis that ophiostomatalean symbionts provide benefits to MPB. The rearing-tube method is useful to tease apart confounding interspecific interactions between bark beetles and symbiotic fungus species.
Rapid Functional Decline of Activated and Memory Graft-versus-Host–Reactive T Cells Encountering Host Antigens in the Absence of Inflammation
Authors: Li Hao Wei , Andreola Giovanna , Carlson Alicia L. , Shao Steven , Lin Charles P. , Zhao Guiling , Sykes Megan
Published: June 2015

Inflammation in the priming host environment has critical effects on the graft-versus-host (GVH) responses mediated by naive donor T cells. However, it is unclear how a quiescent or inflammatory environment impacts the activity of GVH-reactive primed T and memory cells. We show in this article that GVH-reactive primed donor T cells generated in irradiated recipients had diminished ability compared with naive T cells to increase donor chimerism when transferred to quiescent mixed allogeneic chimeras. GVH-reactive primed T cells showed marked loss of cytotoxic function and activation, and delayed but not decreased proliferation or accumulation in lymphoid tissues when transferred to quiescent mixed chimeras compared with freshly irradiated secondary recipients. Primed CD4 and CD8 T cells provided mutual help to sustain these functions in both subsets. CD8 help for CD4 cells was largely IFN-γ dependent. TLR stimulation after transfer of GVH-reactive primed T cells to mixed chimeras restored their cytotoxic effector function and permitted the generation of more effective T cell memory in association with reduced PD-1 expression on CD4 memory cells. Our data indicate that an inflammatory host environment is required for the maintenance of GVH-reactive primed T cell functions and the generation of memory T cells that can rapidly acquire effector functions. These findings have important implications for graft-versus-host disease and T cell–mediated immunotherapies.
Vhuthu in the muta: A practical theologian's autoethnographic journey
Authors: Van Deventer Wilhelm
Published: June 2015

A practical theologian constructs his autoethnographic and interactive narrative with Venda people and others. His own journey is integrated with those of church and community members. These joint lived experiences were shared in the households and families of the relevant co-participants. The concept of Vhuthu in the muta is explored in relation to its potential and problematics by means of auto ethnographic stories, relevant literature, art,poems and linguistics. The article appreciatively and critically reflects upon Vhuthu and its possible value for practical theology.
Hashimoto encephalopathy: A study of the clinical profile, radiological and electrophysiological correlation in a Tertiary Care Center in South India
Authors: Sharma Pattanagere Manjunatha Suryanarayana , Javali Mahendra , Mahale Rohan , Madhusudhan Byadarahalli Kempegowda , Majeed Anas Abdul , Srinivasa Rangasetty
Published: June 2015

Background: Hashimoto encephalopathy (HE) is a poorly understood and often misdiagnosed entity with variable clinical spectrum. There are many uncertainties that still remain about this condition and the pathological significance of thyroid peroxidase (TPO) antibody. Objective: To characterize the clinical, laboratory and radiologic findings in patients with HE. Design: Retrospective analysis of clinical features and diagnostic test data. Main Outcome Measures: Clinical features, laboratory, radiologic, electroencephalography (EEG) findings associated with HE and therapeutic outcome. Results: Thirteen consecutive patients were identified as having HE. The median age at onset was 48.5 years (range, 19-62 years). There was a female preponderance (76.9%). Clinical manifestations were cognitive impairment and behavioral changes in 10 (76.9%), sleep disturbance in 9 (69.2%), seizures in 6 (46.1%), headache in 4 (30.8%), psychosis or paranoia in 5 (38.5%), transient symptoms in 6 (46.1%), myoclonus in 4 (30.8%), ataxia or gait disorder in 4 (30.8%). The most frequent laboratory abnormalities were increased TPO (n = 13) in all cases, increased thyroid stimulating hormone levels (n = 6), and increased erythrocyte sedimentation rate (n = 5). The cerebrospinal fluid protein level was elevated in 8 of 9 patients (88.8%). Magnetic resonance imaging abnormalities were present in 2 patients (15.4%). EEG changes were seen in 7 patients (53.8%). All but two patients showed significant therapeutic benefit with steroids. Conclusions: HE has a wide range of clinical, laboratory, and radiologic findings. All patients with an unexplained encephalopathy should be screened for this condition as treatment response is excellent. To the best of our knowledge, this is the largest single center clinical series of HE from the Indian subcontinent.
Scalar curvature for noncommutative four-tori
Authors: Fathizadeh Farzad , Khalkhali Masoud
Published: June 2015

In this paper we study the curved geometry of noncommutative 4-tori

\mathbb{T}_{\theta}^4

. We use a Weyl conformal factor to perturb the standard volume form and obtain the Laplacian that encodes the local geometric information. We use Connes' pseudodifferential calculus to explicitly compute the terms in the small time heat kernel expansion of the perturbed Laplacian which correspond to the volume and scalar curvature of

\mathbb{T}_{\theta}^4

. We establish the analogue of Weyl's law, define a noncommutative residue, prove the analogue of Connes' trace theorem, and find explicit formulas for the local functions that describe the scalar curvature of

\mathbb{T}_{\theta}^4

. We also study the analogue of the Einstein-Hilbert action for these spaces and show that metrics with constant scalar curvature are critical for this action.
Profession : technicien en documentation
Authors: Bilodeau André , Poirier Marjolaine
Published: June 2015

Traversé par de multiples changements au cours de la dernière décennie, le monde documentaire cherche à se positionner dans le contexte actuel, à composer avec des technologies en évolution, ainsi qu’avec les nouvelles habitudes des usagers. Particulièrement touchés par ces transformations, les techniciens en documentation se questionnent et se redéfinissent. Qu’est-ce qu’être un technicien en documentation en 2012 ? Comment assurer la pérennité de cette profession dans un environnement en continuel renouvellement ? Comment les techniciens et techniciennes envisagent-ils l’évolution de leur profession ? Afin de répondre à ces questions, une enquête a été menée par une équipe de techniciens en documentation. Ce sondage a permis d’amasser des données permettant de dresser un portrait assez précis de la profession, en plus de mettre de l’avant les aspirations et la vision des techniciens quant à leur avenir. Appuyé par un blogue relatant toutes les étapes du projet et permettant une participation interactive des techniciens désirant y collaborer, ce projet typique du Web collaboratif est ici présenté et analysé.
Étude comparée de quatre logiciels de gestion de références bibliographiques libres ou gratuits
Authors: Kembellec Gérald , Scopsi Claire
Published: June 2015

Cet article résulte d’une réflexion sur les outils de gestion de références bibliographiques, particulièrement ceux proposés sous une forme libre ou gratuite. Depuis 2007, l’interaction des outils de rédaction avec les éditeurs bibliographiques évolue rapidement, mais par le passé, les logiciels libres ont pu souffrir de la comparaison en termes d’ergonomie ou d’usage avec l’offre propriétaire. Ce panorama fonctionnel, et technique approfondi des solutions libres ou gratuites actuelles résulte de la comparaison des logiciels JabRef, Mendeley Desktop, BibDesk et Zotero menée en janvier 2012 par deux enseignants chercheurs au sein de l’Institut national français des techniques de la documentation (INTD).
Accès aux ressources numériques et leur utilisation par les enseignants : Résultats d’un sondage
Authors: Gervais Sylvie
Published: June 2015

Cet article fait état des résultats d’une recherche menée auprès d’enseignants du niveau préscolaire et primaire d’une commission scolaire de l’Outaouais. Le questionnaire en ligne soumis aux enseignants comportait quatre sections : informations générales, recherche d’information, volet pédagogique de l’exploitation de l’information, ressources documentaires et numériques. Les résultats montrent que les enseignants ont des habitudes et des pratiques de recherche d’information semblables à celles des étudiants universitaires. Ils permettent également de constater que l’intégration de la recherche d’information en classe demeure exceptionnelle. Cette recherche révèle comment les enseignants accèdent aux ressources numériques et documentaires et les utilisent ensuite dans le cadre de leurs activités pédagogiques.
Dans les règles de l’art : nouvelles normes de documentation pour les musées canadiens
Authors: Dunn Heather
Published: June 2015

Les musées doivent gérer la documentation de leurs collections dans un monde de plus en plus réseauté. Ils font face à une évolution constante des attentes des utilisateurs en ce qui touche l’accès à l’information et l’interaction avec les contenus. Dans ce contexte, le rôle et l’importance des normes de documentation pour les musées se sont accrus, puisque la normalisation et l’échange des données sont devenus essentiels. Les normes de documentation à l’intention des musées ont connu récemment de nombreux développements, et les musées canadiens, ainsi que le Réseau canadien d’information sur le patrimoine (RCIP), ont largement contribué à leur élaboration. Le présent article propose un survol des principales normes de documentation muséale utilisées au Canada et présente les développements les plus récents.
Les premiers sentiers du savoir
Authors: Gallichan Gilles
Published: June 2015

Situé à 100 km à l’est de Québec et fondé en 1827, le Collège de Sainte-Anne-de-la Pocatière est l’un des plus anciens établissements d’enseignement secondaire du Québec. L’article donne un aperçu des origines de la bibliothèque du Collège et de son évolution jusqu’à la fin du XIXe siècle. Les fondateurs du Collège ont apporté une attention particulière à l’outil pédagogique que représentait déjà la bibliothèque collégiale à cette époque. L’auteur souhaite que l’histoire des bibliothèques des maisons d’enseignement québécoises soit mieux connue et davantage valorisée.
Archives et émotions
Authors: Lemay Yvon , Klein Anne
Published: June 2015

L’analyse de la fortune critique de productions culturelles permet de constater que la part émotionnelle des archives est reconnue par les usagers et de comprendre comment l’émotion surgit de l’utilisation des archives. Il apparaît que la lecture émotive de l’archive est soutenue par des caractéristiques propres aux documents d’archives (authenticité, dimension matérielle, passage du temps) dont le dénominateur commun est une capacité d’évocation. Ces caractéristiques doivent, ensuite, être activées par certaines conditions d’utilisation constituées par les choix relatifs à la matérialité, au dispositif, au contexte et au rôle attribué au public. Ceci permet de mieux appréhender les archives en tant qu’objet ouvert à l’interprétation.
Envisager le milieu littéraire avec une perspective féminine : le cas de Jeannette Boulizon
Authors: St-Laurent Fanie
Published: June 2015

Jeannette Boulizon émigre au Canada en 1938 et fait partie de l’équipe de professeurs qui fonde le Collège Stanislas de Montréal. Elle s’intègre rapidement à la société canadienne-française et devient à la fois professeure au primaire et membre d’organisations religieuses, éducatives et culturelles. Son parcours pluridirectionnel l’a amenée soit à élargir sa culture personnelle, soit à la partager. Il semble que son statut d’immigrante française scolarisée et active sur le marché du travail lui aura donné une crédibilité peu habituelle avant les années 1970.
Adolescence, lecture et bibliothèques publiques
Authors: Moreau Brigitte
Published: June 2015

En bibliothèque publique, les adolescents sont une clientèle à apprivoiser, mais surtout à séduire. Qui sont-ils et qu’attendent-ils de leur bibliothèque ? Puisque les bibliothécaires sont appelés à devenir des passeurs et des guides, que doivent-ils comprendre du comportement et des attitudes des adolescents pour devenir des ressources crédibles à leurs yeux ? Peut-on dresser un portrait significatif de leurs comportements de lecteurs ? La collision entre la lecture-plaisir et la lecture-devoir est-elle déterminante dans la perception que les adolescents ont d’eux-mêmes en tant que lecteurs ?
La situation de la veille informationnelle dans les organisations gouvernementales
Authors: Moreau Isabelle , Rodrigue Julie
Published: June 2015

Grâce à l’obtention d’une bourse du Fonds de recherche et de développement Hubert-Perron, décerné par l’Asted en 2006, les auteures ont effectué un sondage auprès de professionnels de l’information du milieu gouvernemental. L’étude descriptive, dont les résultats sont présentés dans cet article, concerne la veille informationnelle. Les auteures exposent également la schématisation d’un modèle de veille stratégique intégrant la veille informationnelle.