bluuebunny/crossref_metadata_2025 huggingface dataset:
Analyse antiraciste du rapport au territoire, à l’autre et à l’écriture dans Aimititau ! Parlons-nous !
Authors: Couture-Grondin Elise
Published: August 2017

Aimititau ! Parlons-nous ! (2008) propose un projet de correspondances littéraires entre écrivains/es autochtones et non autochtones créant ainsi « une nouvelle langue appartenant au territoire de l’amitié et de la création ». Cet article considère l’échange épistolaire en lien avec le territoire physique et le contexte social. L’auteure explore certaines des tensions entre les discours qui promeuvent un partage d’humanité, au-delà des différences, et les conditions matérielles des injustices qui se perpétuent. Elle propose l’analyse de deux correspondances, celles entre Denise Brassard et Rita Mestokosho, et entre Nahka Bertrand et Jean Désy, qui mettent de l’avant un lieu commun d’où établir le dialogue, soit le lien avec la nature et le métissage. Couture-Grondin suggère alors que les discours interculturels doivent tenir compte de la matérialité du racisme, qui continue d’affecter nos relations, et de la matérialité de l’écriture, qui permet de reconnaître la positionalité des discours et la particularité des traditions intellectuelles et de création autochtones.

Aimititau ! Parlons-nous ! (2008) proposes a project of correspondences between Aboriginal and non-Aboriginal writers from Quebec that creates “a new language which belongs to the territory of friendship and creativity”. This paper considers the relationship between the epistolary genre, the physical territory, and the social context. The author explores some of the tensions between discourses that promote the idea of sharing humanity, beyond differences, and the material conditions of ongoing injustices. She analyzes two correspondences, between Denise Brassard and Rita Mestokosho, and between Nahka Bertrand and Jean Désy, which uses a common ground to establish their dialogue, either the relation to nature or the definition of a common identity. Couture-Grondin argues that intercultural discourses must take into account the materiality of racism, which continues to affect current relationships, and the materiality of writing, in a way that acknowledges the positionality of discourses and the particularity of Indigenous intellectual and creative traditions.
Matte, A.M. Ce que l’on divulgue
Authors: Rue Emilienne
Published: August 2017

compte rendu
Normes et marges
Authors: Even Coleen , Gadzala Krysteena
Published: August 2017

Actes du colloque « Normes et marges », U de Waterloo (avril 2016)

Introduction
Leblanc-Poirier, Daniel. Le deuil tardif des camélias
Authors: Falq Armand
Published: August 2017

compte rendu
Vickers, Nancy. Maldoror
Authors: Jamme Eric
Published: August 2017

compte rendu
La trace de l’infini dans l’oeuvre d’Emmanuel Lévinas
Authors: Rosmarin Léonard
Published: August 2017

Emmanuel Lévinas n’a jamais fait mystère de la dette qu’il avait contractée vis-à-vis du philosophe français du dix-septième siècle, René Descartes. L’inspiration de ce dernier est évidente surtout dans la conception de l’Infini qui commande toute l’oeuvre du penseur juif rédigée trois cents ans plus tard.
La souffrance dans Les amants de l’Alfama de Sergio Kokis
Authors: Oore Irène
Published: August 2017

Nous nous proposons d’étudier la souffrance et ses représentations dans Les amants de l’Alfama, le dernier ouvrage de Sergio Kokis, publié en 2003 chez XYZ1. On pourrait affirmer que la souffrance se trouve au centre de l’oeuvre romanesque de Kokis : dès le tout premier roman, Le pavillon des miroirs, jusqu’au dernier, les personnages souffrent. Personne n’est épargné : enfants et vieillards, bourreaux et victimes, femmes et hommes. Abandons et absences, faim et pauvreté, attentes inassouvies et exils désespérants, maladies et difformités, tortures de toutes sortes se multiplient. La douleur et la détresse sont omniprésentes. Si la souffrance en tant que sujet résiste à tout discours conceptuel, elle s’impose néanmoins à nous et exige que nous en parlions. Le discours portant sur la souffrance semble donc à la fois dérisoirement vain et absolument nécessaire.
Les points cardinaux chez Nancy Huston
Authors: Rinné Marie-Noëlle
Published: August 2017

Cette étude se base essentiellement sur deux livres de Nancy Huston, Cantique des plaines et Nord perdu, bien que d’autres romans canadiens (de la même auteure ainsi que d’autres) soient cités à titre argumentatif.
« Mon pays, c’est mes enfants et mes petits-enfants » : exils et transcendance dans Le Bonheur a la queue glissante d’Abla Farhoud
Authors: Maddox Kelly Anne
Published: August 2017

L’identitaire dans ce premier roman de Farhoud est inextricablement liée à l’exil, que ce soit l’exil physique, ou bien, l’exil intérieur. D’une part, l’exil physique se manifeste par la migration, d’abord lorsque le personnage principal, Dounia, quitte son village pour vivre dans celui de son mari, et ensuite lorsqu’elle émigre au Canada. D’autre part, l’exil intérieur provient de la subordination imposée par la culture patriarcale. Nous comptons examiner ces deux formes d’exil, ainsi que les conséquences qui en résultent, telles que la marginalisation, la dépossession linguistique, et le refoulement identitaire. Nous discuterons également des tentatives qu’entreprend Dounia de transcender sa marginalisation en établissant des relations interpersonnelles.
Les Nations Unies font-elles plus de mal que de bien ? Les abus sexuels dans la République Démocratique du Congo
Authors: Russell Tracy
Published: August 2017

Une organisation est aussi forte que l’est chacun de ses membres, et si la francophonie se veut une force viable dans l’avenir, il faut qu’elle tienne compte de ces conflits armés qui détruisent plusieurs de ses pays membres, mais aussi qu’elle aide à les résoudre. Toute la population en subit les conséquences néfastes, mais ce sont les femmes et les enfants qui sont les victimes principales de ces conflits. Trop souvent, les violations des droits de la personne commises contre eux sont impunies. Cet article porte sur un tel exemple de conflit, a savoir celui que connaît actuellement le Congo, où des abus sexuels sont perpétrés sur une grande échelle, et dont les auteurs sont, entre autres, les militaires et les civils qui travaillent pour les Nations Unies.
Flétrissement du corps, efflorescence du corpus dans Le premier jardin d’Anne Hébert
Authors: Sabodach Any
Published: August 2017

À travers la représentation du corps dans Le Premier jardin, Anne Hébert met en question la place de la femme dans l’histoire officielle du Québec qu’elle enrichit de son savoir et de ses commentaires. Nous attribuons au corps une signification à la fois biologique, sociale et littéraire (corpus). L’évolution de Flora (le personnage principal) se fait dans le sens de l’effacement du corps biologique, du rejet du corps social traditionnel, pour embrasser le corpus au féminin, à la fois historique, social et artistique.
L’autobiofiction dans L’art du maquillage et Le fou de Bosch de Sergio Kokis ou deux épisodes d’une « danse macabre »
Authors: Pruteanu Simona Emilia
Published: August 2017

Le but de cet article est de s’interroger sur le syntagme « je suis un tel » dans le contexte de deux romans de Sergio Kokis, L’art du maquillage (1997) et Le fou de Bosch (2006). La possibilité d’une identité unique et indivisible est défiée dans ces romans par la défaillance du mythe du « je » narrateur unique qui devrait dominer tout le récit. Au contraire, ce qu’on trouve à la lecture c’est le mouvement inverse: la narration suit le processus d’auto-engendrement des personnages-narrateurs, qui se créent des « autobiographies » fictives dans une mise en abyme de l’autobiofiction.
Regards croisés derrière la porte : hybridité dans la nouvelle érotique d’Alina Reyes
Authors: Papillon Joëlle
Published: August 2017

Ma lecture de Derrière la porte s’appuie sur les trois axes des théories de la nouvelle, du pornographique et du ludique, qui se conjuguent dans une entreprise de brouillage du statut générique de l’oeuvre, pour la faire basculer dans l’entre-deux.
Un lieu à l’oeuvre : « La chambre noire » de Marguerite Duras
Authors: Denes Dominique
Published: August 2017

Partant du constat que chez Duras la poétique de l’espace oscille entre l’« outside » du

« monde extérieur » et l’inside de « la vie matérielle » et domestique - autant de formules dont

elle a fait des titres - comme elle-même se partage physiquement entre ses trois lieux de l’écrit,

nous nous demanderons comment et jusqu’où ses lieux informent ses livres, et à l’inverse,

comment l’écriture investit le lieu et se l’approprie. Emblématique est à cet égard la chambre des

Roches noires érigée en concept de « chambre noire » de la création, cette chambre-livre avec

vue se prêtant à la réflexion poétique comme à la projection dans l’imaginaire.
Maison-roman et roman-stèle : les figurations livresques chez Peter Ackroyd et Pascal Quignard
Authors: Claude Chrystelle
Published: August 2017

Certains ouvrages narratifs de l’époque contemporaine sont hantés par des ombres errantes.

Figures de lettrés en quête de repos éternel, elles ont trouvé auprès de deux écrivains anglais et

français les porte-voix pour dire la souffrance tue de leur mort. Peter Ackroyd dans Chatterton et

Le Testament d’Oscar Wilde ainsi que Pascal Quignard dans Albucius et La Raison leur créent à

cet effet une maison de mots taillée dans les feuillets du livre.
Ying Chen et l’entre-deux scriptural : des Lettres chinoises à Immobile
Authors: Pruteanu Simona Emilia
Published: August 2017

Un trait caractéristique de plus en plus visible dernièrement dans l’écriture migrante québécoise, dont Ying

Chen est une représentante de marque, est sa déterritorialisation: à la différence de la littérature de

l’immigration des années 1980, piégée entre l’ici et l’ailleurs, l’écriture migrante contemporaine aborde

des problématiques comme la quête identitaire sans avoir besoin de repères géographiques fixes. Cet

article se propose de suivre la métamorphose de l’écriture de Ying Chen depuis Les Lettres chinoises

jusqu’à Immobile (1999), vu que les romans les plus récents de cette auteure ne nomment plus de façon

évidente l’espace de cet entre-deux scriptural (comme les premiers romans), mais ils le donnent à lire

davantage.
DE L'UTOPIE VERS L'ÉDEN : LE JOUEUR DE FLÛTE DE LOUIS HAMELIN
Authors: Lepage Elise
Published: August 2017

Dans Le Joueur de flûte (2001), Louis Hamelin suit les péripéties de son narrateur qui quitte son Québec

natal pour se rendre sur une île de la côte ouest pour retrouver son père, écrivain disparu. En se fondant sur les

catégories établies par le géographe Luc Bureau, cette réflexion s'attache à montrer comment l'île Mere est

représentée comme un espace édénique qui reprend, en les parodiant, les stéréotypes couramment attachés à la

côte Ouest. Il faut cependant prendre en compte la dimension paratextuelle de ce roman afin de rendre la

complexité de son rapport à la spatialité – tant fictive que textuelle.
Sélection de poèmes ; Tirés du manuscrit : L’endroit et l’envers
Authors: Gaboury-Diallo Lise
Published: August 2017

Création
_La joueuse de go_ : entre la calligraphie et le français
Authors: Campbell Stephanie
Published: August 2017

La joueuse de go est le deuxième roman de Shan Sa écrit en français. Chinoise d’origine, cette écrivaine a d’abord appris la calligraphie, et ensuite le français. Dans ce roman, et dans toutes ses œuvres d’ailleurs, elle incorpore des éléments calligraphiques, afin d’encourager le lecteur français à mieux « pénétrer » la civilisation chinoise. Cet article a pour but d’analyser le style d’écriture de Shan Sa pour pouvoir mieux comprendre la façon dont elle construit son texte et réussit à promouvoir la compréhension interculturelle.
L'autoreprésentation en bande dessinée, autoportrait ou autobiographie ?
Authors: Rheault Sylvain
Published: August 2017

L’analyse du Journal de Fabrice Neaud montre que l’autoreprésentation peut relever tout autant de l’autoportrait, puisqu’il y a des procédés classiques de regard et de pose, que de l’autobiographie, puisqu’on trouve dans les planches un « pacte autobiographique » ainsi qu’un récit. Aucune de ces théories ne donne entière satisfaction. C’est qu’il faudrait, pour ce genre d’œuvre novatrice, élaborer une méthode critique nouvelle capable d’intégrer la narration et la représentation.
_Terre des affranchis_ de Liliana Lazar : A la croisée du réel et du fantastique
Authors: Ionescu Mariana
Published: August 2017

Entretien avec Liliana Lazar
L'image de la prison et la fragmentation du récit dans le roman du XXe siècle : Gérard Etienne et Frédéric Beigbeder
Authors: Petrescu Maria
Published: August 2017

Cet article tente de montrer que, dans la littérature actuelle, l’événement traumatisant de l’incarcération se communique par l’intermédiaire de dispersions, de coupures, de parallélismes et de ruptures. S’inspirant des théories de Maurice Blanchot sur le désastre, l’analyse permet de déceler les techniques de la fragmentation particulièrement dans trois romans sur la prison : Le Nègre crucifié et La Pacotille de Gérard Étienne et Un roman français de Frédéric Beigbeder.
Féron, Jean. Le philtre bleu
Authors: Parayre Catherine
Published: August 2017

Féron, Jean. Le philtre bleu. Compte rendu
Le Bris, Michel et Jean Rouaud, Dir. Je est un autre
Authors: Mansueto Claudia
Published: August 2017

Le Bris, Michel et Jean Rouaud. Je est un autre. Compte rendu
Léveillé, J.R. Poème pierre prière
Authors: Paradis Swann
Published: August 2017

Léveillé, J.R. Poème pierre prière. Compte rendu
Lacelle, Andrée. Demain l’enfance
Authors: Savoie Paul
Published: August 2017

Lacelle, Andrée. Demain l’enfance. Compte rendu
Althusser en Haïti. De Port-au-Prince au polder Marie-Anne
Authors: Paveau Marie-Anne
Published: August 2017

Cette contribution formule un témoignage personnel de Marie-Anne Paveau. L'auteure est intervenue à Port-au-Prince en 2006 auprès des étudiants de la Faculté de Linguistique appliquée, alors administrée par Pierre Vernet. Marie-Anne Paveau y présente notamment les éléments du cours qu'elle y a dispensé, illustrant de ce fait la collaboration conduite de 2005 à 2009 entre la Faculté et plusieurs universités de l'étranger.
Un siècle d’aviation féminine : évasion, conquêtes et survol du continent africain
Authors: Volet Jean-Marie
Published: August 2017

Depuis le début de l'aviation, des milliers d'aviatrices ont survolé la France et l'Afrique aux commandes d'avions, petits et grands. De nombreux ouvrages témoignent de cette conquête des cieux par les femmes. Toutefois, les récits, les autobiographies et les romans qui l'évoquent, ont été relégués à l'arrière plan des études littéraires jusqu'à une époque encore récente. Cet article a pour but d'explorer cet univers délaissé et de convoquer un certain nombre d'auteures méconnues qui témoignent de l'expansion du trafic aérien en France et en Afrique. Ce survol répond aux exigences faites aux critiques littéraires d'aujourd'hui de revisiter les grands mythes du passé à la lumière de l'évolution significative de la condition féminine en France comme en Afrique
L’enfant et l’adolescente chez les romancières « beures »
Authors: Miraglia Anne Marie
Published: August 2017

Dans ce survol de quelques romans publiés par des Françaises d’origine maghrébine, nous nous attardons sur l’adoption de la narratrice enfant ou adolescente pour dénoncer, parfois avec humour, les injustices, les humiliations et le tiraillement culturel au cœur des conflits identitaires éprouvés par les enfants d’immigrés maghrébins en France. Cette écriture romanesque se démarque de sa contrepartie masculine non seulement par son insistance sur la double marginalisation des filles en tant que victimes à la fois de racisme et de sexisme mais aussi par la suggestion que le salut se trouve pour elles davantage à l’extérieur qu’à l’intérieur du champ domestique.
Application of Highway Safety Manual Method for Ramp Crash Prediction to Loop and Diamond Ramps
Authors: Torbic Darren J. , Harwood Douglas W. , Bauer Karin M.
Published: August 2017

The AASHTO Highway Safety Manual (HSM) now includes crash prediction procedures for ramps. Research was undertaken to assess how well these new crash prediction methods represented the safety performance of two ramp types with distinctly different geometrics: loop ramps and diamond ramps. The HSM crash prediction procedures were applied to 235 loop ramps and 243 diamond ramps in two states—California and Washington—and the results were compared with 5 years of actual crash data for the same ramps. The results indicate that the HSM crash prediction method can be applied to both loop and diamond ramps, but to compare the safety performance of these two ramp types properly, separate calibration of loop and diamond ramps is needed.
Safety Effects of Low-Cost Systemic Safety Improvements at Signalized and Stop-Controlled Intersections
Authors: Le Thanh Q. , Gross Frank , Harmon Timothy
Published: August 2017

Packages of intersection treatments—including signing, pavement marking, and signal enhancements—were installed at many signalized and stop-controlled intersections in South Carolina. This study evaluated the overall safety-effectiveness of the concurrent implementation of these systemic low-cost treatments as part of the FHWA Evaluations of Low Cost Safety Improvements Pooled Fund. The data set included both urban and rural three-leg and four-leg intersections with two or four lanes on the major road. The study employed an empirical Bayes before-and-after analysis. The aggregate results indicate reductions for all crash types analyzed in this study. For signalized intersections, the crash modification factors (CMFs) are 0.955, 0.893, 0.974, 0.883, and 0.969 for total, fatal and injury, rear-end, right-angle, and nighttime crashes, respectively. The CMFs for fatal and injury and right-angle crashes are statistically significant at the 95% confidence level and the CMF for total crashes is statistically significant at the 90% confidence level. For stop-controlled intersections, the CMFs are 0.917, 0.899, 0.933, 0.941, and 0.853 for total, fatal and injury, rear-end, right-angle, and nighttime crashes, respectively. All CMFs for stop-controlled intersections are statistically significant at the 95% confidence level. An economic analysis shows that systemic, low-cost intersection treatments are cost-effective with conservative benefit–cost ratio estimates of 4.1 for total crashes at signalized intersections and 12.4 for total crashes at stop-controlled intersections.
Indigenous women participation behavior under one house one farm project of Mymensingh in Bangladesh
Authors: Uddin MT , Jannat A , Islam MM , Dhar AR
Published: August 2017

The study was conducted to assess the participation behavior of indigenous women by the adoption of one house one farm project in Mymensingh district. The respondents were divided into two groups i.e., project farmers and non-project farmers. The study revealed that the impact of the project was very much satisfactory in terms of education, occupation, farm holding, etc. The participation index was used as a measure of womens participation level in the one house one farm which indicated that 88.0% of the project women obtained a score of 60.0. The results also revealed that the age of the head of households, numbers of trainings imparted to each household, operational holding, frequency of the visit of BRDB personnel, effectiveness of local institutions and off-farm income had significant influence on the participation behavior of the indigenous women. Although, indigenous farmers reported some strengths and opportunities which helped them to cope with the unwanted situation, government and the concerned authorities should come forward to overcome the weaknesses and threats as well.Progressive Agriculture 28 (2): 130-138, 2017
Feasibility of rice procurement programme for poor farmers in Bangladesh
Authors: Alam S , Haque S , Islam S , Jannat A , Islam MM
Published: August 2017

The study has been conducted to examine feasibility of rice procurement system and factors influencing farmers to sell rice at procurement centers in an area of Jamalpur district. In total, 45 sampled farmers including both participant and non-participants and 15 millers who are residing in various upazillas in Jamalpur district were interviewed. Stratified sampling technique was followed to select the respondents. From the 45 farmers, 20 farmers were participating in the procurement process. To examine the financial profitability of rice procurement system, activity budget analysis was done. To find the influencing factors those encourage farmers to attend in rice procurement programme, the Logit regression model was used. The study revealed that on an average, 52 percent and 11 percent of paddy procurement targets in Boro and Aman season respectively were achieved. On the other hand, 91 percent and 49 percent of rice procurement targets in Boro and Aman season respectively were achieved. Though cost of production was higher for marginal/small farmers, but the both gross and net return was higher for medium/large farmers. Out of 9 independent variables, four variables have been found to have significant influence on adopting rice procurement system in the study area. Although, Government Boro paddy procurement has many weaknesses, but it can be reduced by taking necessary steps in making it more efficient.Progressive Agriculture 28 (2): 139-147, 2017
A Method for Ferulic Acid Production from Rice Bran Oil Soapstock Using a Homogenous System
Authors: Truong Hoa , Do Van Manh , Duc Huynh Long , Thi Nguyen Linh , Do Tuan Anh , Le Xuan Thanh Thao , Duong Phuoc Hung , Takenaka Norimichi , Imamura Kiyoshi , Maeda Yasuaki
Published: August 2017

Ferulic acid (FA) is widely used as an antioxidant, e.g., as a Ultraviolet (UV) protectant in cosmetics and in various medical applications. It has been produced by the hydrolysis of γ-oryzanol found in rice bran oil soapstock. In this study, the base-catalyzed, homogenous hydrolysis of γ-oryzanol was conducted using various ratios of potassium hydroxide (KOH) to γ-oryzanol, initial concentrations of γ-oryzanol in the reaction mixture, and ratios of ethanol (EtOH) (as cosolvent)/ethyl acetate (EtOAc) (γ-oryzanol solution). Acceleration of the reaction using a planar type of ultrasound sonicator (78 and 130 kHz) at different reaction temperatures was explored. By using a heating method, the 80% yield of FA was attained at 75 °C in 4 h under homogeneous conditions (initial concentration of γ-oryzanol 12 mg/mL, the KOH/γ-oryzanol ratio (wt/wt) 10/1, and EtOH/EtOAc ratio (v/v) 5/1). With the assistance of 78 and 130 kHz irradiation, the yields reached 90%. The heating method was applied for the γ-oryzanol-containing extract prepared from rice bran oil soapstock. From soapstock, the 74.3% yield of FA was obtained, but 20% of the trans-FA in the reaction mixture was transformed into cis-form within one month.
Challenges for Modeling of Five-Axis Coordinate Measuring Systems
Authors: Gąska Piotr , Gąska Adam , Gruza Maciej
Published: August 2017

Modeling of various measuring systems used in coordinate metrology is a very relevant and current topic. Functional models of measuring systems are used in simulative methods as so called ‘virtual models’ and are used mainly for determination of measurement uncertainty and prediction of errors that may occur during the measurement. Virtual models have already been developed for coordinate measuring machines and articulated arm coordinate measuring machines and are currently under development for other, state-of-the-art measuring systems. They include Laser Tracking systems, optical coordinate measuring machines (CMMs) and five-axis measuring systems. The first step towards development of virtual model for the latter system was presented in a previous study by the authors. The simplified model for simulation and correction of probe head errors and its verification was proposed. This paper describes the challenges that must be faced before the final implementation of a fully functional virtual model of five-axis coordinate measuring systems.
A Compact and Multi-Stack Electromagnetic Bandgap Structure for Gigahertz Noise Suppression in Multilayer Printed Circuit Boards
Authors: Kim Myunghoi , Ahn Seungyoung
Published: August 2017

In modern printed electronics, the performances of a circuit and a device are severely deteriorated by the electromagnetic noise in the gigahertz (GHz) frequency range, such as the simultaneous switching noise and ground bounce noise. A compact and multi-stack electromagnetic bandgap (CMS-EBG) structure is proposed to suppress the electromagnetic noise over the GHz frequency range with a short distance between a noise source and a victim on multilayer printed circuit boards (MPCBs). The original configuration of the stepped impedance resonators is presented to efficiently form multiple stacks of EBG cells. The noise suppression characteristics of the CMS-EBG structure are rigorously examined using Floquet-Bloch analysis. In the analysis, dispersion diagrams are extracted from an equivalent circuit model and a full-wave simulation model. It is experimentally verified that the CMS-EBG structure suppresses the resonant modes over the wideband frequency range with a short source-to-victim distance; thus, this structure substantially mitigates GHz electromagnetic noise in compact MPCBs.
Optimal Control of Wastewater Treatment Plants Using Economic-Oriented Model Predictive Dynamic Strategies
Authors: Revollar Silvana , Vega Pastora , Vilanova Ramón , Francisco Mario
Published: August 2017

This paper addresses the implementation of economic-oriented model predictive controllers for the dynamic real-time optimization of the operation of wastewater treatment plants (WWTP). Both the economic-optimizing controller (pure-EMPC) and the economic-oriented tracking controller (Hybrid-EMPC, or HEMPC) formulations are validated in the benchmark simulation model (BSM1) platform that represents the behavior of a characteristic activated sludge process. The objective of the controllers is to ensure the appropriate operation of the plant, while minimizing the energy consumption and the fines for violations of the limits of the ammonia concentration in the effluent along the full operating period. A non-linear reduced model of the activated sludge process is used for predictions to obtain a reasonable computing effort, and techniques to deal with model-plant mismatch are incorporated in the controller algorithm. Different designs and structures are compared in terms of process performance and energy costs, which show that the implementation of the proposed control technique can produce significant economic and environmental benefits, depending on the desired performance criteria.
Algebraic Theory of Crystal Vibrations: Localization Properties of Wave Functions in Two-Dimensional Lattices
Authors: Dietz Barbara , Iachello Francesco , Macek Michal
Published: August 2017

The localization properties of the wave functions of vibrations in two-dimensional (2D) crystals are studied numerically for square and hexagonal lattices within the framework of an algebraic model. The wave functions of 2D lattices have remarkable localization properties, especially at the van Hove singularities (vHs). Finite-size sheets with a hexagonal lattice (graphene-like materials), in addition, exhibit at zero energy a localization of the wave functions at zigzag edges, so-called edge states. The striped structure of the wave functions at a vHs is particularly noteworthy. We have investigated its stability and that of the edge states with respect to perturbations in the lattice structure, and the effect of the boundary shape on the localization properties. We find that the stripes disappear instantaneously at the vHs in a square lattice when turning on the perturbation, whereas they broaden but persist at the vHss in a hexagonal lattice. For one of them, they eventually merge into edge states with increasing coupling, which, in contrast to the zero-energy edge states, are localized at armchair edges. The results are corroborated based on participation ratios, obtained under various conditions.
Crystal Growth and Luminescence Properties of Dy3+ and Ge4+ Co-Doped Bi4Si3O12 Single Crystals for High Power Warm White LED
Authors: Tian Tian , Feng Haiwei , Zhang Yan , Zhou Ding , Shen Hui , Wang Hongchao , Xu Jiayue
Published: August 2017

Φ1 inch Dy3+ and Ge4+ co-doped bismuth silicate (Bi4Si3O12, BSO) single crystals with the length of 80–100 mm were successfully grown by Bridgman method. They are transparent, free of cracks and inclusions. The white residual at the top parts of BSO crystals disappears with co-doping 1 mol% Dy3+ and more than 3 mol% Ge4+. The FWHM values of X-ray rocking curves shows 1%Dy,3%Ge:BSO crystal possesses high crystallization quality. The intrinsic emission peak of BSO and the characteristic emission peaks of Dy3+ ions are weakened with increasing the doping concentration of Ge4+. 1 mol% Dy3+ and 3 mol% Ge4+ are the optimal concentrations due to high crystallization quality and moderate emission intensity. The CIE coordinates and CCT values shift towards warmer white light region with increased Ge4+ co-doping. The CCT values are close to the ideal value of 3000 K for warm white light when 1%Dy,3%Ge:BSO crystal is excited by various UV light. Increasing the temperature from 298 K to 573 K leads the luminescence lifetime to decrease from 659 μs to 645 μs. More than 95% and 80% photoluminescence intensity at room temperature is still retained at 423 K and 573 K respectively. Dy,Ge:BSO crystals are potential candidates for fabricating high power warm WLEDs.
Synthesis of Two Novels-Shaped Dibenzo[c,l] Chrysene Derivatives, Crystal Structure, and the Evaluation of their Photophysical Properties
Authors: Moriguchi Tetsuji , Tabuchi Daichi , Yakeya Daisuke , Tsuge Akihiko , Jalli Venkataprasad
Published: August 2017

Two s-shaped polyaromatic dibenzo[c,l]chrysene derivatives have been synthesized by a two-step process, via. The Wittig reaction, followed by iodine, promoted photocyclization. These molecules have been characterized by 1H NMR, FAB-MS, and elemental analysis. Further, the molecular structures of 4a and 4b have been confirmed by single crystal X-ray diffraction analysis. The protons located in the cove-regions of molecules 4a and 4b showed downfield shifts of the protons. Molecule 4a crystallized under the monoclinic system with space group C2/c, and the molecule 4b crystallized under the monoclinic system with space group P21/n. Molecules 4a and 4b showed strong absorption maxima wavelengths at 310 nm and 324 nm, respectively. The molar extinctinction coefficients (ε) of the compounds 4a and 4b indicated that molecule 4b has a better ability to absorb UV light than molecule 4a. The emission spectra of the molecules 4a and 4b displayed peaks in the region 429–456 nm. The shape of the UV-Visible and Fluorescence spectra of the molecules 4a and 4b look almost identical. However, molecule 4b exhibited better fluorescence intensity than molecule 4a. This may be due to the difference in the substituents of molecules 4a and 4b.
Thermal Transport and Entropy Production Mechanisms in a Turbulent Round Jet at Supercritical Thermodynamic Conditions
Authors: Ries Florian , Janicka Johannes , Sadiki Amsini
Published: August 2017

In the present paper, thermal transport and entropy production mechanisms in a turbulent round jet of compressed nitrogen at supercritical thermodynamic conditions are investigated using a direct numerical simulation. First, thermal transport and its contribution to the mixture formation along with the anisotropy of heat fluxes and temperature scales are examined. Secondly, the entropy production rates during thermofluid processes evolving in the supercritical flow are investigated in order to identify the causes of irreversibilities and to display advantageous locations of handling along with the process regimes favorable to mixing. Thereby, it turned out that (1) the jet disintegration process consists of four main stages under supercritical conditions (potential core, separation, pseudo-boiling, turbulent mixing), (2) causes of irreversibilities are primarily due to heat transport and thermodynamic effects rather than turbulence dynamics and (3) heat fluxes and temperature scales appear anisotropic even at the smallest scales, which implies that anisotropic thermal diffusivity models might be appropriate in the context of both Reynolds-averaged Navier–Stokes (RANS) and large eddy simulation (LES) approaches while numerically modeling supercritical fluid flows.
Numerical Investigation for the Impact of Single Groove on the Stall Margin Improvement and the Unsteadiness of Tip Leakage Flow in a Counter-Rotating Axial Flow Compressor
Authors: Mao Xiaochen , Liu Bo , Zhao Hang
Published: August 2017

A low-speed counter-rotating axial flow compressor (CRAC) with single circumferential grooved casing treatment (CT) was investigated numerically. Both steady and time-accurate numerical calculations were performed to study the effects of the single grooved CTs over the rear rotor on the stability enhancement and the unsteadiness of tip leakage flow (TLF) in the CRAC. Parametric studies indicate that the best position of the single groove should be located near about 20% axial tip chord in terms of the stall margin improvement (SMI). The coincidence of the effective CT locations and the high fluctuating region on blade pressure surface in the smooth wall case shows that the unsteadiness of TLF plays an important role in the stall inception process. Frequency analysis for the static pressure signals near the blade tip shows that both the disappearance of the low frequency components and the suppression of unsteady TLF are beneficial to the SMI. Detailed observation of the flow structures illustrates that the action of the grooves on the different parts of TLF is responsible for the difference of SMI in the CTs. It is more effective to improve the flow stability by controlling the critical TLF released from near the mid-chord.
Modeling of MMC for Fast and Accurate Simulation of Electromagnetic Transients: A Review
Authors: Khan Salman , Tedeschi Elisabetta
Published: August 2017

Over the past decade, modular multilevel converters have evolved as the preferred choice for high voltage conversion systems. The design of the converter poses a computational challenge to the classical electromagnetic transient simulation techniques, for which the existing literature proposes numerous simplified and computationally-efficient equivalent representations. Despite the extensive collection of proposed models, the literature lacks a systematic comparison of these representations, which could enable their appropriate selection based on the specific simulation objectives. In light of these requirements, this article presents a comprehensive review of MMC models and discusses their applicability for parallel and real-time simulation. Using PSCAD/EMTDC simulations, the models are objectively compared with regards to computational efficiency and accuracy for various transient conditions. In addition, the paper also presents a brief account of MMC operation and the associated control and modulation system.
Centrality as a Method for the Evaluation of Semantic Resources for Disaster Risk Reduction
Authors: Čerba Otakar , Jedlička Karel , Čada Václav , Charvát Karel
Published: August 2017

Clear and straightforward communication is a key aspect of all human activities related to crisis management. Since crisis management activities involve professionals from various disciplines using different terminology, clear and straightforward communication is difficult to achieve. Semantics as a broad science can help to overcome communication difficulties. This research focuses on the evaluation of available semantic resources including ontologies, thesauri, and controlled vocabularies for disaster risk reduction as part of crisis management. The main idea of the study is that the most appropriate source of broadly understandable terminology is such a semantic resource, which is accepted by—or at least connected to the majority of other resources. Important is not only the number of interconnected resources, but also the concrete position of the resource in the complex network of Linked Data resources. Although this is usually done by user experience, objective methods of resource semantic centrality can be applied. This can be described by centrality methods used mainly in graph theory. This article describes the calculation of four types of centrality methods (Outdegree, Indegree, Closeness, and Betweenness) applied to 160 geographic concepts published as Linked Data and related to disaster risk reduction. Centralities were calculated for graph structures containing particular semantic resources as nodes and identity links as edges. The results show that (with some discussed exceptions) the datasets with high values of centrality serve as important information resources, but they also include more concepts from preselected 160 geographic concepts. Therefore, they could be considered as the most suitable resources of terminology to make communication in the domain easier. The main research goal is to automate the semantic resources evaluation and to apply a well-known theoretical method (centrality) to the semantic issues of Linked Data. It is necessary to mention the limits of this study: the number of tested concepts and the fact that centralities represents just one view on evaluation of semantic resources.
Characterization of Reconstructed Ancestral Proteins Suggests a Change in Temperature of the Ancient Biosphere
Authors: Akanuma Satoshi
Published: August 2017

Understanding the evolution of ancestral life, and especially the ability of some organisms to flourish in the variable environments experienced in Earth’s early biosphere, requires knowledge of the characteristics and the environment of these ancestral organisms. Information about early life and environmental conditions has been obtained from fossil records and geological surveys. Recent advances in phylogenetic analysis, and an increasing number of protein sequences available in public databases, have made it possible to infer ancestral protein sequences possessed by ancient organisms. However, the in silico studies that assess the ancestral base content of ribosomal RNAs, the frequency of each amino acid in ancestral proteins, and estimate the environmental temperatures of ancient organisms, show conflicting results. The characterization of ancestral proteins reconstructed in vitro suggests that ancient organisms had very thermally stable proteins, and therefore were thermophilic or hyperthermophilic. Experimental data supports the idea that only thermophilic ancestors survived the catastrophic increase in temperature of the biosphere that was likely associated with meteorite impacts during the early history of Earth. In addition, by expanding the timescale and including more ancestral proteins for reconstruction, it appears as though the Earth’s surface temperature gradually decreased over time, from Archean to present.
Marine Inspired 2-(5-Halo-1H-indol-3-yl)-N,N-dimethylethanamines as Modulators of Serotonin Receptors: An Example Illustrating the Power of Bromine as Part of the Uniquely Marine Chemical Space
Authors: Ibrahim Mohamed , El-Alfy Abir , Ezel Kelly , Radwan Mohamed , Shilabin Abbas , Kochanowska-Karamyan Anna , Abd-Alla Howaida , Otsuka Masami , Hamann Mark
Published: August 2017

In previous studies, we have isolated several marine indole alkaloids and evaluated them in the forced swim test (FST) and locomotor activity test, revealing their potential as antidepressant and sedative drug leads. Amongst the reported metabolites to display such activities was 5-bromo-N,N-dimethyltryptamine. Owing to the importance of the judicious introduction of halogens into drug candidates, we synthesized two series built on a 2-(1H-indol-3-yl)-N,N-dimethylethanamine scaffold with different halogen substitutions. The synthesized compounds were evaluated for their in vitro and in vivo antidepressant and sedative activities using the mouse forced swim and locomotor activity tests. Receptor binding studies of these compounds to serotonin (5-HT) receptors were conducted. Amongst the prepared compounds, 2-(1H-indol-3-yl)-N,N-dimethyl-2-oxoacetamide (1a), 2-(5-bromo-1H-indol-3-yl)-N,N-dimethyl-2-oxoacetamide (1d), 2-(1H-indol-3-yl)-N,N-dimethylethanamine (2a), 2-(5-chloro-1H-indol-3-yl)-N,N-dimethylethanamine (2c), 2-(5-bromo-1H-indol-3-yl)-N,N-dimethylethanamine (2d), and 2-(5-iodo-1H-indol-3-yl)-N,N-dimethylethanamine (2e) have been shown to possess significant antidepressant-like action, while compounds 2c, 2d, and 2e exhibited potent sedative activity. Compounds 2a, 2c, 2d, and 2e showed nanomolar affinities to serotonin receptors 5-HT1A and 5-HT7. The in vitro data indicates that the antidepressant action exerted by these compounds in vivo is mediated, at least in part, via interaction with serotonin receptors. The data presented here shows the valuable role that bromine plays in providing novel chemical space and electrostatic interactions. Bromine is ubiquitous in the marine environment and a common element of marine natural products.
Hospital Drains as Reservoirs of Pseudomonas aeruginosa: Multiple-Locus Variable-Number of Tandem Repeats Analysis Genotypes Recovered from Faucets, Sink Surfaces and Patients
Authors: Lalancette Cindy , Charron Dominique , Laferrière Céline , Dolcé Patrick , Déziel Eric , Prévost Michèle , Bédard Emilie
Published: August 2017

Identifying environmental sources of Pseudomonas aeruginosa (Pa) related to hospital-acquired infections represents a key challenge for public health. Biofilms in water systems offer protection and favorable growth conditions, and are prime reservoirs of microorganisms. A comparative genotyping survey assessing the relationship between Pa strains recovered in hospital sink biofilm and isolated in clinical specimens was conducted. Environmental strains from drain, faucet and sink-surface biofilm were recovered by a culture method after an incubation time ranging from 48 to 240 h. The genotyping of 38 environmental and 32 clinical isolates was performed using a multiple-locus variable-number of tandem repeats analysis (MLVA). More than one-third of Pa isolates were only cultivable following ≥48 h of incubation, and were predominantly from faucet and sink-surface biofilms. In total, 41/70 strains were grouped within eight genotypes (A to H). Genotype B grouped a clinical and an environmental strain isolated in the same ward, 5 months apart, suggesting this genotype could thrive in both contexts. Genotype E grouped environmental isolates that were highly prevalent throughout the hospital and that required a longer incubation time. The results from the multi-hospital follow-up study support the drain as an important reservoir of Pa dissemination to faucets, sink surfaces and patients. Optimizing the recovery of environmental strains will strengthen epidemiological investigations, facilitate pathway identification, and assist in identifying and controlling the reservoirs potentially associated to hospital-acquired infections.
A Study on AIN Film-Based SAW Attenuation in Liquids and Their Potential as Liquid Ethanol Sensors
Authors: Wang Yong , Xu Zhonggui , Wang Yinshen , Xie Jin
Published: August 2017

In this paper, we report attenuation characteristics of aluminum nitride (AIN) film-based surface acoustic waves (SAWs) in liquids and their potential as liquid ethanol sensors. An AIN film-based SAW resonator was fabricated for liquid sensing application. The fabricated SAW device had a Rayleigh wave mode at a resonant frequency of 147.1 MHz and a low temperature coefficient of frequency (TCF) of −21.7 ppm/K. The signal attenuation in the transmission line of the SAW device was presented when ethanol (ETH) droplets and deionized water (DIW) with different concentrations and volume (0.2–1 µL) were dropped on the sensing area respectively. The attenuation of SAW as a function of time and liquid position was investigated. Residues left on the wave propagation path resulted in a frequency shift of the SAW device after liquid evaporation. For ETH, there was a 49 kHz frequency shift caused by a large amount of residues, while the frequency shift of DIW was not distinct, on account of a clean surface. The linear relationship between evaporation rate and ethanol concentration was demonstrated. The evaporation rate of ethanol droplets showed good consistency, and the evaporation time variation was less than 5% at each concentration level. Therefore, the proposed SAW device had great potentials to determine ethanol concentrations based on evaporation rate.
A Comprehensive System for Monitoring Urban Accessibility in Smart Cities
Authors: Mora Higinio , Gilart-Iglesias Virgilio , Pérez-del Hoyo Raquel , Andújar-Montoya María
Published: August 2017

The present work discusses the possibilities offered by the evolution of Information and Communication Technologies with the aim of designing a system to dynamically obtain knowledge of accessibility issues in urban environments. This system is facilitated by technology to analyse the urban user experience and movement accessibility, which enabling accurate identification of urban barriers and monitoring its effectiveness over time. Therefore, the main purpose of the system is to meet the real needs and requirements of people with movement disabilities. The information obtained can be provided as a support service for decision-making to be used by city government, institutions, researchers, professionals and other individuals of society in general to improve the liveability and quality of the lives of citizens. The proposed system is a means of social awareness that makes the most vulnerable groups of citizens visible by involving them as active participants. To perform and implement the system, the latest communication and positioning technologies for smart sensing have been used, as well as the cloud computing paradigm. Finally, to validate the proposal, a case study has been presented using the university environment as a pre-deployment step in urban environments.
Discrimination of Oil Slicks and Lookalikes in Polarimetric SAR Images Using CNN
Authors: Guo Hao , Wu Danni , An Jubai
Published: August 2017

Oil slicks and lookalikes (e.g., plant oil and oil emulsion) all appear as dark areas in polarimetric Synthetic Aperture Radar (SAR) images and are highly heterogeneous, so it is very difficult to use a single feature that can allow classification of dark objects in polarimetric SAR images as oil slicks or lookalikes. We established multi-feature fusion to support the discrimination of oil slicks and lookalikes. In the paper, simple discrimination analysis is used to rationalize a preferred features subset. The features analyzed include entropy, alpha, and Single-bounce Eigenvalue Relative Difference (SERD) in the C-band polarimetric mode. We also propose a novel SAR image discrimination method for oil slicks and lookalikes based on Convolutional Neural Network (CNN). The regions of interest are selected as the training and testing samples for CNN on the three kinds of polarimetric feature images. The proposed method is applied to a training data set of 5400 samples, including 1800 crude oil, 1800 plant oil, and 1800 oil emulsion samples. In the end, the effectiveness of the method is demonstrated through the analysis of some experimental results. The classification accuracy obtained using 900 samples of test data is 91.33%. It is here observed that the proposed method not only can accurately identify the dark spots on SAR images but also verify the ability of the proposed algorithm to classify unstructured features.