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X-WR-CALDESC:Events for Northeastern University College of Engineering
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DTSTART;TZID=America/New_York:20211207T080000
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DTSTAMP:20260426T092923
CREATED:20211207T152941Z
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UID:29691-1638864000-1639155600@coe.northeastern.edu
SUMMARY:Experiential Entrepreneurship Intersession Opportunity
DESCRIPTION:Want to hone your entrepreneurial skills over winter break while working directly with tech startups? Registration is now open for the Experiential Entrepreneurship Intersession course running from January 3rd through January 14th. \nOffered virtually or in-person through the Roux Institute at Northeastern University\, students will learn about the venture creation process and work hand-in-hand with tech startups that have emerged from the accelerator and residency programs at the Roux Institute. \n
Past guest lecturers have included: \n\nAli Goldstein Norup\, co-founder of kpiReady and current Head of VC and Startup Ecosystem\, North Americas at Google Cloud\nBen Chesler\, co-founder of Imperfect Foods and current Associate Director of Entrepreneurship at the Roux Institute\nJesse Bardo\, co-founder of EverTrue and current Director at Silicon Valley Bank\n\nAnd\, if you register by December 8th\, you will receive an invite to the Techstars Demo Day in Portland\, Maine. The event will gather the Maine startup community for an in-person presentation from each of the 10 companies selected for the inaugural Roux Institute Techstars Accelerator class. Following you’ll be invited for a reception at the Roux Institute where guests will meet and mingle with the startups\, investors\, and community members. \nTo view the course: \n\n
Visit Banner and select the term\, Spring 2022 Semester. Even though Intersession Term courses meet between semesters\, they have been administratively assigned to Spring 2022 semester.\nClick Advanced Search on the Browse Classes page.\nIn the attribute field\, choose Intersession Term Course. All the Intersession Term offerings will appear.\n\n
Registration for intersession will close Friday\, December 10th at 11:59 (EST).
URL:https://coe.northeastern.edu/event/experiential-entrepreneurship-intersession-opportunity/
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LAST-MODIFIED:20211207T201849Z
UID:29688-1639062000-1639065600@coe.northeastern.edu
SUMMARY:ECE PhD Dissertation Defense: Arjun Singh
DESCRIPTION:PhD Dissertation Defense: Design\, Modeling\, and Operation of Plasmonic Devices for Smart Communication Systems in the Terahertz Band \nArjun Singh \nLocation: 332 ISEC or Teams Link \nAbstract: The terahertz (THz) band is an attractive spectral resource for realizing future communication systems\, with the potential of supporting very high-speed data rates and increasingly dense networks. However\, the lack of a well-developed technology that operates at these frequencies has remained a challenge for the scientific community. The very high propagation losses at THz frequencies and the decimating impact of everyday objects on THz wave propagation necessitate an up-haul of the conventional communication link\, with smart control over the radiation\, propagation\, and detection of THz signals. Additionally\, device physics at THz frequencies\, among them the very high gain requirement and large electrical size\, may render the often-held assumptions of the propagation model invalid. An interdisciplinary approach spanning device design and operation\, and wireless propagation and signal processing is required.\nTo this end\, the proposed research herein addresses the facilitation of an end-to-end communication link with graphene plasmonics as the cornerstone of the fundamental device physics. The devices designed can be utilized to effectively overcome the limited communication distance –The grand challenge of the THz band. Different from other undertakings\, every attempt is made to ac-knowledge and accommodate the complex trade-offs in the design process. First\, a novel graphene based plasmonic array architecture is proposed\, explained\, and modeled. The fundamental radiating element of the array architecture\, called the plasmonic front-end\, consists of a self-sufficient plasmonic source\, a plasmonic modulator that acts as a phase controller\, and a plasmonic nano-antenna for effective radiation. The designed array is compact and provides complete beamsteering support\, with a new tailored algorithm developed for beamforming weight selection. Numerical evaluations and full-wave finite difference frequency domain (FDFD) simulations with COMSOL Multi-physics are utilized to verify array operation. Exploiting these properties\, a multi-beam array design is presented next\, where orthogonal spatial filters are utilized to provide support for spatial multiplexing towards the realization of ultra-massive MIMO (UM-MIMO). Taking this further\, the design considerations of an interleaved plasmonic array are presented\, in which the beamsteering capability is utilized to simultaneously achieve radio frequency interference (RFI) mitigation with channel capacity maximization for multi-user scenarios. Additionally\, to realize the vision of a smart communication system with a programmable wireless environment\, a hybrid reflectarray is presented. The fundamental element is modeled as a jointly designed and integrated metal-graphene patch. Numerical and simulation results are utilized to demonstrate the attractive properties of the reflectarray as compared to other proposed counterparts\, including an independence from the incoming angle of the impinging wave\, dynamic phase control capability\, and strong reflection efficiency. The requirements of a THz communication link and their impact on the common communication protocols are considered next. It is shown that certain scenarios may render regular array operation invalid\, motivating codebook designs that function in the massive near-field Fresnel zone of electrically large THz devices. Numerical simulations and theoretical analysis are presented to highlight their potential in improving system performance and capacity while reducing the system complexity. Finally\, the significant milestones in the fabrication process of these devices are also presented.
URL:https://coe.northeastern.edu/event/ece-phd-dissertation-defense-arjun-singh/
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