Integrated design for integrated photonics: from the physical to the circuit level and back

Silicon photonics is maturing rapidly on a technology basis, but design challenges are still prevalent. We discuss these challenges and explain how design of photonic integrated circuits needs to be handled on both the circuit as on the physical level. We also present a number of tools based on the IPKISS design framework

3D Execution Monitor (3D-EM): Using 3D Circuits to Detect Hardware Malicious Inclusions in General Purpose Processors

Best PhD Paper, Proceedings of the International Conference on Information Warfare and Security (ICIW), Washington, DC, USA, March 2011, Pages 289-298. [Paper] [Slides] [Abstract] [Conference

Production Scheduling

Generally speaking, scheduling is the procedure of mapping a set of tasks or jobs (studied objects) to a set of target resources efficiently. More specifically, as a part of a larger planning and scheduling process, production scheduling is essential for the proper functioning of a manufacturing enterprise. This book presents ten chapters divided into five sections. Section 1 discusses rescheduling strategies, policies, and methods for production scheduling. Section 2 presents two chapters about flow shop scheduling. Section 3 describes heuristic and metaheuristic methods for treating the scheduling problem in an efficient manner. In addition, two test cases are presented in Section 4. The first uses simulation, while the second shows a real implementation of a production scheduling system. Finally, Section 5 presents some modeling strategies for building production scheduling systems. This book will be of interest to those working in the decision-making branches of production, in various operational research areas, as well as computational methods design. People from a diverse background ranging from academia and research to those working in industry, can take advantage of this volume

Remote fabrication of integrated circuits : software support for the M.I.T. computer aided fabrication environment

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.Includes bibliographical references (p. 73-74).by Jimmy Y. Kwon.M.S

INTEGRATED CHIRPED-GRATING SPECTROMETER-ON-A-CHIP

In this dissertation we demonstrate a new structure based on waveguide coupling atop a silicon wafer using a chirped grating to provide the dispersion that leads to a high-resolution, compact, fully integrable and CMOS-compatible spectrometer. Light is both analyzed and detected in a single, completely monolithic component which enables realizing a high-resolution portable spectrometer with an extremely compact footprint. The structure is comprised of a SiO2/Si3N4/SiO2 waveguide on top of a silicon wafer. Grating regions are fabricated on the top cladding of the waveguide. The input light is incident on a chirped grating area known as the collection area. Because of the local variation of the grating pitch across the collection area, different wavelengths of light are coupled into the waveguide at different lateral positions across the collection area. Guided light is then outcoupled through second grating region known as the detection area to the array of photodiodes placed either atop the second grating region or below the second grating region in silicon chip. Therefore, spectral information is encoded in the chirped grating coupler, which is fabricated in a single lithography step, independent of the number of channels. For these initial experiments, a separate detection array was used. In future iterations, these detectors can be integrated into the underlying silicon, resulting in a fully integrated spectrometer on a chip. Varying the input angle of the light will vary the measurement spectral range. This will result in an inexpensive spectrometer on chip, with adjustable resolution and spectral coverage controlled by the grating chirp and the input angle

Structural cognitive training with immersive virtual reality

Dissertação de mestrado em Informatics EngineeringIn this thesis, a systematic review was conducted on the study of the use of VRSs. VR is an immersive technology capable of simulating real life events through image, sound and headed mounted devices or technologies such as windows kinnect. These technologies can be used to evaluate the performance and evolution of IADLs in older adults. An electronic data search was conducted, during January 2022. The final analysis includes 12 studies with 285 participants in total. The use of VRSs is an innovative and feasible technique to support and improve the functional autonomy of older adults living in the community compared to conventional treatment. Between 20% to 25% of community-dwelling people over 75 years old have limitations in the ability to perform ADLs. The ability to perform ADLs is extremely important as it enables individuals to have a good quality of life by creating a sense of competence, self-esteem, confidence, identify and realisation. In this thesis we present the concept of structural cognitive training, in which cognitive training tasks (executive functions and cognitive abilities) are combined with training of instrumental activities of daily living. The methodology adequacy is assessed by the design of a digital game to train older adults to conduct IADLs.Nesta tese, foi realizada uma revisão sistemática sobre o estudo do uso de sistemas de realidade virtual. A realidade virtual é uma tecnologia imersiva capaz de simular eventos da vida real através de imagem, som e head-mounted devices ou tecnologias como o windows kinnect. Estas tecnologias podem ser utilizadas para avaliar o desempenho e a evolução dos IADLs em adultos mais velhos. Foi realizada uma pesquisa electrónica de dados, durante o mês de Janeiro de 2022. A análise final inclui 12 estudos com 285 participantes no total. A utilização de sistemas de realidade virtual é uma técnica inovadora e viável para apoiar e melhorar a autonomia funcional dos adultos mais velhos que vivem na comunidade, em comparação com o tratamento convencional. Entre 20% a 25% dos habitantes da comunidade com mais de 75 anos de idade têm limitações na capacidade de realizar ADLs. A capacidade de realizar ADLs é extrema mente importante, pois permite que os indivíduos tenham uma boa qualidade de vida, criando um sentido de competência, auto-estima, confiança, identificação e realização. Nesta tese apresentamos o conceito de treino cognitivo estrutural, na qual as tarefas de treino cognitivo (funções executivas e capacidades cognitivas) são combinadas com o treino de actividades instrumentais da vida quotidiana. A adequação da metodologia é avaliada através da concepção de um jogo digital para treinar os adultos mais velhos a realizar actividades instrumentais da vida quotidiana

Design and Management of Manufacturing Systems

Although the design and management of manufacturing systems have been explored in the literature for many years now, they still remain topical problems in the current scientific research. The changing market trends, globalization, the constant pressure to reduce production costs, and technical and technological progress make it necessary to search for new manufacturing methods and ways of organizing them, and to modify manufacturing system design paradigms. This book presents current research in different areas connected with the design and management of manufacturing systems and covers such subject areas as: methods supporting the design of manufacturing systems, methods of improving maintenance processes in companies, the design and improvement of manufacturing processes, the control of production processes in modern manufacturing systems production methods and techniques used in modern manufacturing systems and environmental aspects of production and their impact on the design and management of manufacturing systems. The wide range of research findings reported in this book confirms that the design of manufacturing systems is a complex problem and that the achievement of goals set for modern manufacturing systems requires interdisciplinary knowledge and the simultaneous design of the product, process and system, as well as the knowledge of modern manufacturing and organizational methods and techniques