1,344,895 research outputs found

    Ambient-Oriented Programming in Fractal

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    International audienceAmbient-Oriented Programming (AmOP) comprises suits of challenges that are hard to meet by current software development techniques. Although Component-Oriented Programming (COP) represents promising approach, the state-of-the-art component models do not provide sufficient adaptability towards specific constraints of the Ambient field. In this position paper we argue that merging AmOP and COP can be achieved by introducing the Fractal component model and its new feature : Component-Based Controlling Membranes. The proposed solution allows dynamical adaptation of component systems towards the challenges of the Ambient world

    Development of Photonic Crystal Fiber Based Gas/ Chemical Sensors

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    The development of highly-sensitive and miniaturized sensors that capable of real-time analytes detection is highly desirable. Nowadays, toxic or colorless gas detection, air pollution monitoring, harmful chemical, pressure, strain, humidity, and temperature sensors based on photonic crystal fiber (PCF) are increasing rapidly due to its compact structure, fast response and efficient light controlling capabilities. The propagating light through the PCF can be controlled by varying the structural parameters and core-cladding materials, as a result, evanescent field can be enhanced significantly which is the main component of the PCF based gas/chemical sensors. The aim of this chapter is to (1) describe the principle operation of PCF based gas/ chemical sensors, (2) discuss the important PCF properties for optical sensors, (3) extensively discuss the different types of microstructured optical fiber based gas/ chemical sensors, (4) study the effects of different core-cladding shapes, and fiber background materials on sensing performance, and (5) highlight the main challenges of PCF based gas/ chemical sensors and possible solutions

    A Component Approach to Collaborative Scientific Software Development: Tools and Techniques Utilized by the Quantum Chemistry Science Application Partnership

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    Cutting-edge scientific computing software is complex, increasingly involving the coupling of multiple packages to combine advanced algorithms or simulations at multiple physical scales. Component-based software engineering (CBSE) has been advanced as a technique for managing this complexity, and complex component applications have been created in the quantum chemistry domain, as well as several other simulation areas, using the component model advocated by the Common Component Architecture (CCA) Forum. While programming models do indeed enable sound software engineering practices, the selection of programming model is just one building block in a comprehensive approach to large-scale collaborative development which must also address interface and data standardization, and language and package interoperability. We provide an overview of the development approach utilized within the Quantum Chemistry Science Application Partnership, identifying design challenges, describing the techniques which we have adopted to address these challenges and highlighting the advantages which the CCA approach offers for collaborative development

    Proceedings of the Conference on Emerging Economic Issues in a Globalizing World

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    The challenges facing Þanlýurfa are not unique, they are the same challenges found in rural areas all around the world. Agriculture is still the most important sector in Þanlýurfa, but it is generating fewer and fewer jobs. New approaches used in regional development shift from a focus on individual sectors (such as agriculture policy) to one based on a comprehensive multisectoral approach in which agriculture is conceived as one component sector of a comprehensive regional development policy. Within this framework, there are two major aims of this study. The first aim is to identify the high point sectors (key industries) by using LQ analysis in Þanlýurfa province and 11 districts. The analysis encompasses all sectors of industry and services thus excluding agriculture. On the other hand the economy of Þanlýurfa, endowed with very rich arable land resources and irrigation facilities, thanks to GAP-(South Eastern Anatolian Project), is mainly based on agriculture. Accordingly the second aim of this paper is to analyze the development potentials of “clusters of agro-industries based on organic agriculture products” in the region. The findings of the analysis reveal that the key sectors identified in industry and services (food and textiles industries and retail and wholesale of food stuff) provide inputs from the main agricultural products in the region. On the other hand considering the availability of land and other facilities for organic agricultural products the findings of the study strongly supports development of “clusters of organic - agro industries” in Þanlýurfa Region.regional development, clusters

    Economic Development Potential Of The Krakow Region

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    Analyzing economic development potential and activities in a region requires identifying factors essential for a successful strategy and analyzing the locale in terms of its resources and relative position within a broader economic environment. In order to examine Krakow’s opportunities and steps already taken, it is necessary to analyze the region’s strengths and weaknesses and relate the findings to academic theories on high technology’s role in economic development and then evaluate the results in the context of Poland.The Krakow Region, located in southern Poland, prides itself as a dynamically developing center of advanced technologies and unmatched business climate. High technology, or high-tech economic development, has been incorporated into regional plans and strategies as most promising component of the region’s development. Hence, this paper’s intention is to look at the process of economic development based on high technology and compare the theoretic findings with the reality and practice of the Region of Krakow. The analysis presented in this paper identifies the region’s strengths and weaknesses. It is found that despite the academic potential and multiple efforts to stimulate economic development based on advanced technologies, Krakow faces considerable challenges. These are the leadership of Warsaw, weak relationships between business and science and, consequently, insufficient application of research outcomes to economic practice. Recommendations to overcome these threats and weaknesses are presented in the final section

    Enhancing school-university partnerships.

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    Preservice teachers are offered school-based experiences as a component of their undergraduate teacher education programmes. While there have been major shifts toward establishing new types of partnerships between schools and teacher education providers internationally, in New Zealand the relationship has generally gone unexamined. New Zealand teachers, therefore, have continued as supervisors of students' experiences rather than as collaborative partners in teacher education. This study makes particular reference to the professional development school (PDS) movement in the United States of America to seek innovative ideas that might enhance school-university partnerships in New Zealand. Broader issues, however, surface as challenges and complexities are identified. Despite various criticisms there are benefits in the collaborative efforts giving cause for optimism for new types of school-university partnerships

    Intrinsically stretchable and transparent thin-film transistors based on printable silver nanowires, carbon nanotubes and an elastomeric dielectric.

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    Thin-film field-effect transistor is a fundamental component behind various mordern electronics. The development of stretchable electronics poses fundamental challenges in developing new electronic materials for stretchable thin-film transistors that are mechanically compliant and solution processable. Here we report the fabrication of transparent thin-film transistors that behave like an elastomer film. The entire fabrication is carried out by solution-based techniques, and the resulting devices exhibit a mobility of ∼30 cm(2) V(-1) s(-1), on/off ratio of 10(3)-10(4), switching current >100 μA, transconductance >50 μS and relative low operating voltages. The devices can be stretched by up to 50% strain and subjected to 500 cycles of repeated stretching to 20% strain without significant loss in electrical property. The thin-film transistors are also used to drive organic light-emitting diodes. The approach and results represent an important progress toward the development of stretchable active-matrix displays
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