138 research outputs found

    Modelling of microelectronic processes and materials

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    Organic electronics promises the creation of electronic components on flexible materials at low temperatures, by fast techniques and more environmentally friendly processes. The research followed two directions. The first part focused on the manufacturing technique nanoimprint lithography (NIL). A comprehensive review was undertaken and process capabilities were compared for trends. It was seen that small feature sizes (< 50 nm) have not been replicated over areas greater than 4 mm2, while aspect ratios greater than 10 have not been achieved. A questionnaire addressing market opportunities suggested NIL is likely to compete for the production of devices that currently use electron beam lithography and laser writing processes that are seeking to change their business strategy from a differentiation base to a cost reduction. NIL must also prove to customers that it is an economical investment. However, improvements in stamp creation, analysis techniques and overlay alignment need to be addressed for a larger share of the microfabrication market. It was apparent that physical limits exist to which imprints can be produced and an analytical model could predict these. A model was created to describe the de-embossing step and to explore how the various material properties and process variables interact. It showed a very strong dependence on the achievable aspect ratio on the pattern area ratio and the interfacial shear stress; that de-embossing using fluorinated coatings and current standard polymers is unlikely to fail for post radii on the order of 100 nm due to adhesion and that large area ratios and aspect ratios are more easily achieved by maintaining the polymer/stamp Young’s moduli ratio (RE) in the range 0.003 to 5.The second part of the research looked at the formation of crescent singularities in thin sheet materials, which affects the production of polymer electronic based devices produced by the sponsoring company. The author compared an analytical model by Cerda and Mahadevan for the formation of developable cones (d-cones) to a finite element (FE) model and showed that explicit elements could mimic the formation of a d-cone. Different elements were analysed for their suitability and the Belytschko-Lin-Tsay (BT) element was chosen based on its speed, robustness and similarity to the analytical results. An adapted three-point bend test set-up was conceived that would enable specific attributes to be independently varied, to understand their effect on d-cone formation in thin sheets. Digital image correlation (DIC) was used to calculate the displacements and strains. The same set-up was modelled using an FE model with the chosen BT element. The DIC results showed a variation in strain with plunger displacement before the visual appearance of a developable cone and that it occurred between 0.1 and 0.4 % in-plane strain. The FE data showed a similar trend to the DIC results, showing a change in strain once a d-cone began to form. Improvements and suggestions were then made advising how to make the DIC and FE models more accurate

    Code stylometry vs formatting and minification

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    The automatic identification of code authors based on their programming styles- known as authorship attribution or code stylometry-has become possible in recent years thanks to improvements in machine learning-based techniques for author recognition. Once feasible at scale, code stylometry can be used for well-intended or malevolent activities, including: identifying the most expert coworker on a piece of code (if authorship information goes missing); fingerprinting open source developers to pitch them unsolicited job offers; de-anonymizing developers of illegal software to pursue them. Depending on their respective goals, stakeholders have an interest in making code stylometry either more or less effective. To inform these decisions we investigate how the accuracy of code stylometry is impacted by two common software development activities: code formatting and code minification. We perform code stylometry on Python code from the Google Code Jam dataset (59 authors) using a code2vec-based author classifier on concrete syntax tree (CST) representations of input source files. We conduct the experiment using both CSTs and ASTs (abstract syntax trees). We compare the respective classification accuracies on: (1) the original dataset, (2) the dataset formatted with Black, and (3) the dataset minified with Python Minifier. Our results show that: (1) CST-based stylometry performs better than AST-based (51.00%-*68%), (2) code formatting makes a significant dent (15%) in code stylometry accuracy (68%-*53%), with minification subtracting a further 3% (68%-*50%). While the accuracy reduction is significant for both code formatting and minification, neither is enough to make developers non-recognizable via code stylometry

    A 3. sz. tanú nyilatkozata : Válasz Balla Zoltánnak a Képzeletbeli keresetlevél a bírósághoz című publikációjára

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    More than half a decade ago, the Specialised Lexicon of Police Science (Rendészettudományi szaklexikon) was published, and Zoltán Balla reflected on it in a unique way, in the form of an imaginary claim. His study attempted to provide a historical background to the production of the Lexicon. Anyone who lives in the world of science and books knows that a manuscript sent to a publisher nowadays may already be obsolete when printed. The author therefore agrees with the idea of reviewing the entries of the Lexicon and publishing a revised or a completely new version

    Les conditions de vie dans les logements sociaux au Mali : une étude de cas des cités : des 1008,320 et 501 de Yirimadio de 2012 à 2019.

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    Analysis of the living conditions of poor households in social housing has made it possible to draw results: the right to housing is recognized as a fundamental right but its effective management in cities remains problematic. The physical quality of social housing is economical and even of high standard, for example the f4 types. But the social quality of the habitat of the cities named ATTbougou by the Malians is little taken into account with the exception of f4. The basic services for economic housing are little respected by real estate developers in the realization and construction. The hygienic services are unsatisfactory in all the cities, the same is true for the distribution of drinking water by SOMOGEP-sa. The feeling of insecurity prevails in the perception of households receiving housingL’analyse des conditions de vie des ménages pauvres dans les logements sociaux a permis de dresser des résultats : le droit au logement est reconnu comme droit fondamental mais sa gestion effective dans les cités demeure problématique. La qualité physique des logements sociaux est économique et même de standing par exemple les types f4., mais la qualité sociale de l’habitat des cités nommées ATTbougou par les Maliens est peu prise en compte à l’exception des f4. Les services de base pour les logements économiques sont peu respectés par les promoteurs immobiliers dans la réalisation et la construction. Les services d’hygiènes sont insatisfaisants dans toutes les cités il en est de même pour la distribution d’eau potable par la SOMOGEP-sa. Le sentiment d’insécurité prévaut dans la perception des ménages bénéficiaires de logement

    Politique de logements sociaux et problématiques d’attribution au Mali : cas des 1008, 320 et 501 de Yirimadio en commune VI du District de Bamako.

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    This article focuses on social housing policy, the allocation of which was a highly sensitive issue in Mali, particularly due to the oversupply of housing between 2003 and 2006. This resulted in the spontaneous and uncontrolled growth of shantytowns around Bamako and in regional capitals. Starting in 2003, the Malian government, under President Amadou Toumani Touré, organized large-scale social housing construction projects, known locally as "ATT Bougou." The aim of this policy was to promote real estate and land development by facilitating urban restructuring, coupled with a financing system that enabled low-income groups to access decent housing. The results yielded 1,829 social housing units, distributed according to the following types of affordable housing: 949 type F2, 860 type F3, and 20 type F4 (Table I). This operation took place between 2003 and 2006. Housing allocation was based on criteria defined by a commission established by the Minister of State Property, Land Affairs, and Housing. The allocation criteria were discussed in interviews during which participants shared their opinions. They also mentioned limitations in the application process and the eligibility criteria. Unsuccessful applicants described the allocation criteria as a system that excluded low-income social groups.L’article porte sur la politique de logements sociaux dont l’attribution a constitué une question très sensible au Mali, en raison notamment de la supériorité de l’offre à la demande de logements entre 2003 et 2006. Il s’en est suivi un développement spontané et anarchique de bidonvilles autour de Bamako et dans les capitales régionales. L’État malien à partir de 2003 a organisé de vastes opérations de construction de logements sociaux sous le président Amadou Toumani TOURE appelées « ATT Bougou » par les populations. L’ambition de cette politique était la promotion immobilière et foncière, en favorisant la restructuration urbaine accompagnée d’un système de financement, permettant aux couches sociales à faible moyen, d’accéder à un logement décent. Les résultats obtenus ont donné 1829 logements sociaux répartis selon la typologie de logements économiques : le type f2 au nombre de 949, le type f3 avec un effectif de 860 et le type f4 à 20 (Tableau I). Cette opération s’étalait entre 2003 et 2006. L’attribution des logements est faite selon des critères définis par une commission mise en place par le ministre des domaines de l’État, des affaires foncières et de l’Habitat. Les critères d’attribution ont fait l’objet d’entretiens au cours desquels les intervenants ont donné leurs appréciations. Ils ont aussi fait mention des limites des dossiers et des critères d’éligibilité. Les postulants malheureux ont qualifié les critères  d’attribution comme  système d’exclusion des couches sociales à faible revenu

    Forensic Dental Identification: Practice in Indian Context Compared to Western Countries

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    Today, in most of the countries forensic dental identification is considered as one of the most accurate and reliable method of identification of human remains. This application of forensic dentistry has proven successful in both single identification cases as well as in multiple fatality incidents such as world trade center disaster in 2001, the Asian tsunami in December 2004 etc. Comparative dental identification is one of the primary means of identification along with DNA and fingerprint analysis and also the most common method of identification of human remains. Identification of human remains from dental records is mandated by the law in some countries. India is one of the most disaster-prone countries of the world. It has had some of the world′s most severe droughts, famines, earthquakes, road accidents, and rail accidents. In this paper, few multiple fatality incidents that took place over the last decade in India are reported. A brief analysis of all the reported cases and difficulties encountered during identification were discussed. The purpose of this paper is to discuss some of the issues involved in body identifications following disasters in India. The author also discussed to what extent Indian government is successful in utilizing the expertise of a forensic dentist in body identifications and also compared the present practice of forensic dental identification in India to Western countries. The goal is to cite situations and to bring issues into better focus, and hence that the identification procedures can be refined and changes can be made as necessary

    PARADOXICAL ESSENCE OF THE STORY IN BALLA´S FICTIONS

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    This study looks at fiction techniques and their semantic implications in the texts of a Slovak writer Balla. The author explains the paradoxical essence of the story in Balla’s works by means of the “event‘s” nature being different from that of the subject matter’s theme, going beyond the borderline separating the two distinctive semantic fields. Balla’s texts demonstrate the impossibility of changing the protagonist’s negative situation. The essence of the thematised problem is by its nature close to a themeless text that contradicts the usual storyness directed towards dynamic interaction between the subject and its surroundings. The static nature of the theme demands innovations in the text-producing process, while this also determines the process substantially. As the author’s treatment of the theme does not allow for thematic detention, the stronger becomes the author’s focus on procedures that are able to disintegrate disproportional thematic facets beyond straightforward verbalisation as well. In the frame of fictional semantics, the purpose is served by contaminating the fictional world with elements overlapping the “real” dimension and exploiting the text’s metaphorical components. Besides the two mentioned procedures, the tendency towards a more developed fictional structure is manifested in Balla’s work. If the story represents a medium of potential extension in Slovak cultural context, “story” in Balla’s texts means obstructing extension and in this way also the impossibility to experience the “otherness” of existence in motion. As a result, the fiction provides minimal transitivity into “transtextual” cathartic space. The ground for aggravated communication is the subject encircled in the causality of causes and effects, with an absence of the slightest hints concerning a breakthrough in his state. Thus the way to ease off the accumulated tension does not open by the text itself; but contrary to it, it is necessary to step out of it

    LA MUSIQUE DES GRIOTS

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    Comprend : MANSANNI, joué à la Kora / Soudioulou SISSOKO - CHANT ACCOMPAGNE DE KORA - WONG / les musiciens du Bour Fodé Diouf - GOURDES FRAPPEES' / enregistrées à Gagnieck, région du Kaolack - GOUMBE SAMBA / les femmes de Gagnieck - M'BARE GALE / enregistré à Bambey ; Balla DIOUF - TANOR FATIM COURA / le groupe M'bagnick M'Boup, de Bambey - M'BABOR / Abdoulaye Nar SAMB, Amadou N'Diaye SAMB et Samba Diabaré SIAMB, enregistré à Dakar - TARA / Amadou N'Diaye SAMB et Samba Diabaré SAMB, chanteurs et joueurs de Khalam. Enregistré à Dakar - MORCEAUX DE PERCUSSION / le groupe de Bambo CAMARA, enregistrés à M'Bour - SAMBA BOUR N'KAYE / le groupe de Bambo Camara, enregistre à M'Bour - INCHALLAH / joué par Mariam KOYATE (Sénégal oriental) - LELE / Amadou Coly SALL, chanteur et joueur de Molo - PIECE INSTRUMENTALE, jouée au Molo / Amadou Coly SALL - PEKANE / Diallo MAYEL - YELA / les femmes Mabo, de Podor - MORCEAUX POUR DEUX KHALAMS / Thiam SY et son compagnon - ALIOUNE IBA N'DIAYE / M'Bana DIOP du Oualo et son EnsembleBnF-Partenariats, Collection sonore - BelieveContient une table des matière

    An ecofeminist analysis of Canto jo i la muntanya balla by Irene Solà

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    Un dels principals objectius de l’ecofeminisme és conscienciar la societat de la crisi ecològica i el sexisme, atés que fan perillar la supervivència dels éssers vius i de la natura. Canto jo i la muntanya balla és una novel·la d’Irene Sola que pot ser analitzada des d’aquesta perspectiva per la gran diversitat de veus narratives gràcies a l’aplicació del concepte d’heteroglòssia de Bakhtín. L’autora dona veu a éssers que, tradicionalment, han estat silenciats per la societat antropocèntrica i androcèntrica com ara les dones, els animals i la natura. A més, cal remarcar que totes aquestes veus tenen la mateixa importància per al desenvolupament de la història. Pel que fa a les veus dels personatges femenins, convé remarcar que són molt diferents entre elles i ens aporten diverses perspectives d’entendre les relacions, la maternitat, la sexualitat i l’entorn que els envolta. Així mateix, el folklore i l’etnopoètica tenen una gran importància en la novel·la perquè una de les narradores és una dona d’aigua i els personatges fan ús de les llegendes per a entendre l’entorn natural o per a distreure’s del dolor i les desgràcies per uns moments. Un altre cas significatiu és el de Cristina que critica l’exclusió de les dones de tradicions com ara la festa de l’os de Prats de Molló. D’altra banda, els animals i la natura també són narradors gràcies al mecanisme de la imaginació empàtica de Randy Malamud. Tocant als animals, cal remarcar el capítol narrat per Lluna, la gossa de Mia, per l’estreta relació que manté amb ella i la narració del part d’un cabirol en comparació a la narració que fa la dona d’aigua d’un part humà. Finalment, convé fixar-se en els vincles entre les veus narratives i els personatges de l’obra perquè exemplifiquen les dues dependències humanes: la interdependència i l’ecodependència.One of the main goals of ecofeminism is to make society aware of both the current ecological crisis and sexism, since they put living beings and nature in danger. This school of thought has various tendencies, and it has not been well-studied in Catalan-speaking places. Canto jo i la muntanya balla is a novel written by Irene Solà that can be analysed from this perspective because of its variety of narrative voices and thanks to an application of Bakhtin’s concept of heteroglossia. The author also gives a voice to those that have been traditionally silenced by our anthropocentric, androcentric society, e.g., women, animals, and nature. Furthermore, all of these voices are equally important to the development of the story. As for the voices of the female characters, it should be noted that they are very different from one another; they give us different perspectives on understanding relationships, motherhood, sexuality, and the environment that surrounds them. Animals and nature are also narrators thanks to Randy Malamud’s procedure of empathetic imagination. The chapters in this book give us the opportunity to recognise the acting capacity of animals and nature and to think about issues like hunting and the destruction of the natural environment. Furthermore, the bonds between narrative voices and the characters in the novel illustrate, with examples, two human dependencies: interdependence and ecodependence, i.e., human beings depending on other human beings to survive, and human beings depending on nature. We can see these dependencies in the multiple references to cures and the importance that nature has in the lives of the inhabitants of this area of the Pyrenees. Finally, the narration by the tourist from Barcelona is significant for an analysis of relationships, as it is an example of a man who is disconnected from the environment and from the other characters, unlike the novel’s other narrators

    An ecofeminist analysis of Canto jo i la muntanya balla by Irene Solà

    No full text
    Un dels principals objectius de l’ecofeminisme és conscienciar la societat de la crisi ecològica i el sexisme, atés que fan perillar la supervivència dels éssers vius i de la natura. Canto jo i la muntanya balla és una novel·la d’Irene Sola que pot ser analitzada des d’aquesta perspectiva per la gran diversitat de veus narratives gràcies a l’aplicació del concepte d’heteroglòssia de Bakhtín. L’autora dona veu a éssers que, tradicionalment, han estat silenciats per la societat antropocèntrica i androcèntrica com ara les dones, els animals i la natura. A més, cal remarcar que totes aquestes veus tenen la mateixa importància per al desenvolupament de la història. Pel que fa a les veus dels personatges femenins, convé remarcar que són molt diferents entre elles i ens aporten diverses perspectives d’entendre les relacions, la maternitat, la sexualitat i l’entorn que els envolta. Així mateix, el folklore i l’etnopoètica tenen una gran importància en la novel·la perquè una de les narradores és una dona d’aigua i els personatges fan ús de les llegendes per a entendre l’entorn natural o per a distreure’s del dolor i les desgràcies per uns moments. Un altre cas significatiu és el de Cristina que critica l’exclusió de les dones de tradicions com ara la festa de l’os de Prats de Molló. D’altra banda, els animals i la natura també són narradors gràcies al mecanisme de la imaginació empàtica de Randy Malamud. Tocant als animals, cal remarcar el capítol narrat per Lluna, la gossa de Mia, per l’estreta relació que manté amb ella i la narració del part d’un cabirol en comparació a la narració que fa la dona d’aigua d’un part humà. Finalment, convé fixar-se en els vincles entre les veus narratives i els personatges de l’obra perquè exemplifiquen les dues dependències humanes: la interdependència i l’ecodependència.One of the main goals of ecofeminism is to make society aware of both the current ecological crisis and sexism, since they put living beings and nature in danger. This school of thought has various tendencies, and it has not been well-studied in Catalan-speaking places. Canto jo i la muntanya balla is a novel written by Irene Solà that can be analysed from this perspective because of its variety of narrative voices and thanks to an application of Bakhtin’s concept of heteroglossia. The author also gives a voice to those that have been traditionally silenced by our anthropocentric, androcentric society, e.g., women, animals, and nature. Furthermore, all of these voices are equally important to the development of the story. As for the voices of the female characters, it should be noted that they are very different from one another; they give us different perspectives on understanding relationships, motherhood, sexuality, and the environment that surrounds them. Animals and nature are also narrators thanks to Randy Malamud’s procedure of empathetic imagination. The chapters in this book give us the opportunity to recognise the acting capacity of animals and nature and to think about issues like hunting and the destruction of the natural environment. Furthermore, the bonds between narrative voices and the characters in the novel illustrate, with examples, two human dependencies: interdependence and ecodependence, i.e., human beings depending on other human beings to survive, and human beings depending on nature. We can see these dependencies in the multiple references to cures and the importance that nature has in the lives of the inhabitants of this area of the Pyrenees. Finally, the narration by the tourist from Barcelona is significant for an analysis of relationships, as it is an example of a man who is disconnected from the environment and from the other characters, unlike the novel’s other narrators
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