Ryerson University

About: Ryerson University is a education organization based out in Toronto, Ontario, Canada. It is known for research contribution in the topics: Computer science & Population. The organization has 7671 authors who have published 20164 publications receiving 394976 citations. The organization is also known as: Ryerson Polytechnical Institute & Ryerson Institute of Technology.

Toward Tactile Internet in Beyond 5G Era: Recent Advances, Current Issues, and Future Directions

Abstract: Tactile Internet (TI) is envisioned to create a paradigm shift from the content-oriented communications to steer/control-based communications by enabling real-time transmission of haptic information (i.e., touch, actuation, motion, vibration, surface texture) over Internet in addition to the conventional audiovisual and data traffics. This emerging TI technology, also considered as the next evolution phase of Internet of Things (IoT), is expected to create numerous opportunities for technology markets in a wide variety of applications ranging from teleoperation systems and Augmented/Virtual Reality (AR/VR) to automotive safety and eHealthcare towards addressing the complex problems of human society. However, the realization of TI over wireless media in the upcoming Fifth Generation (5G) and beyond networks creates various non-conventional communication challenges and stringent requirements in terms of ultra-low latency, ultra-high reliability, high data-rate connectivity, resource allocation, multiple access and quality-latency-rate tradeoff. To this end, this paper aims to provide a holistic view on wireless TI along with a thorough review of the existing state-of-the-art, to identify and analyze the involved technical issues, to highlight potential solutions and to propose future research directions. First, starting with the vision of TI and recent advances and a review of related survey/overview articles, we present a generalized framework for wireless TI in the Beyond 5G Era including a TI architecture, the main technical requirements, the key application areas and potential enabling technologies. Subsequently, we provide a comprehensive review of the existing TI works by broadly categorizing them into three main paradigms; namely, haptic communications, wireless AR/VR, and autonomous, intelligent and cooperative mobility systems. Next, potential enabling technologies across physical/Medium Access Control (MAC) and network layers are identified and discussed in detail. Also, security and privacy issues of TI applications are discussed along with some promising enablers. Finally, we present some open research challenges and recommend promising future research directions.

Biochar from residual biomass as a concrete filler for improved thermal and acoustic properties

Abstract: The current imbalance of carbon in the atmosphere is stimulating the search for carbon sequestration opportunities and for alternative processes and products with a reduced carbon footprint. Biochar, produced from residual biomass of the bio-ethanol industry (Dry Distillers Grains), was added as filler to a standard concrete, aiming at finding potential solutions for simultaneous carbon sequestration and improved properties and performance of the concrete. The addition of biochar resulted in a linear decrease in concrete density, with a concrete density of 1454 kg/m3 for 15 wt% biochar. The addition of biochar also considerably increased the sound absorption coefficient of concrete across the range of 200–2000 Hz, as it created pore networks within the concrete. The thermal conductivity of the concrete showed the largest reductions with 2 wt% of biochar, reaching lows of 0.192 W/(m·K). Finally, the incorporation of biochar showed a detrimental effect on the compressive strength of the concrete, which would put bio-enhanced concretes in the low-strength concrete classification category.