A Review on Forwarding Strategies in NDN based Vehicular Networks

Named Data Networking (NDN) is a model that has been proposed by many researchers to alter the long-established IP based networking model. It derives the content centric approach rather than host-based approach. This is gaining even more traction in the wireless network and is able to replace the conventional IP-based networking. Up to now, NDN has proven to be fruitful when used with certain limitations in vehicular networks. Vehicular networks deal with exchanging information across fast moving complex vehicle network topology. The sending and receiving of information in such a scenario acts as a challenge and thus requires an effective forwarding strategy to address this problem. Different research work has provided with multiple forwarding strategy that solves the current problem up to some limit but further research work is still longed for to get an optimum solution. This paper provides a brief survey on current existing forwarding strategies related to vehicular networks using NDN as well as providing information on various resources and technologies used in it

Lightweight Hardware Accelerator for Post-Quantum Digital Signature CRYSTALS-Dilithium

The looming threat of an adversary with Quantum computing capability led to a worldwide research effort towards identifying and standardizing novel post-quantum cryptographic primitives. Post-standardization, all existing security protocols will need to support efficient implementation of these primitives. In this work, we contribute to these efforts by reporting the smallest implementation of CRYSTALS-Dilithium, a finalist candidate for post-quantum digital signature. By invoking multiple optimizations to leverage parallelism, pre-computation and memory access sharing, we obtain an implementation that could be fit into one of the smallest Zynq FPGA. On Zynq Ultrascale+, our design achieves an improvement of about 36.7%/35.4%/42.3% in Area×Time (LUTs×s) trade-off for KeyGen/Sign/Verify respectively over state-of-the-art implementation. We also evaluate our design as a co-processor on three different hardware platforms and compare the results with software implementation, thus presenting a detailed evaluation of CRYSTALS-Dilithium targeted for embedded applications. Further, on ASIC using TSMC 65nm technology, our design requires 0.227mm$^2$ area and can operate at a frequency of 1.176 GHz. As a result, it only requires 53.7μs/96.9μs/57.7μs for KeyGen/Sign/Verify operation for the best-case scenario

Knowledge, attitude, and practice regarding organ donation among adult Population of an Urban field practice area of a medical college in Durgapur, West Bengal, India

Background: Organ donation is either when a person allows healthy transplantable organs/tissues to be removed, after death, or when the donor is alive and transplanted into other persons. Common transplantations include eyes, kidneys, liver, heart, skin, and bone marrow. The present study was conducted to understand the knowledge, attitude, and practice pattern of organ donation among the participants and to find out the association between the knowledge of organ donation with selected variables of interest. Methods: The present study was a cross-sectional study conducted among adult participants of an urban area of Durgapur from October 18, 2016, to November 5, 2016. A predesigned and pretested pro forma was used for data collection. Results: About 73.3% of the participants had heard about organ donation. Majority of the participants were female, aged 31–40 years, illiterate, and with a monthly income less than Rs. 5000/month. Eye was the most common donatable organ identified by the participants. Majority of the participants were unaware about the existing law in India about organ donation. Not a single participant had donated any organ, but 6% of them had signed form for cadaveric donation. Participants those who have educational status above high school had better knowledge compared to those who have lesser educational qualification (P = 0.001). Similarly, participants with monthly family income ≥10,000 also had better knowledge compared to other groups (P = 0.029), and this relation was statistically significant. Conclusion: Awareness about organ donation is not satisfactory, but the community had a positive attitude toward organ donation

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Not AvailableProduction of inulin from yam bean tubers by ultrasonic assisted extraction (UAE) was optimized by using response surface methodology (RSM) and genetic algorithms (GA). Yield of inulin was obtained between 11.97%–12.15% for UAE and 11.21%–11.38% for microwave assisted extraction (MAE) using both the methodologies, significantly higher than conventional method (9.9 %) using optimized conditions. Under such optimized condition, SEM image of root tissues before and extraction showed disruption and microfractures over surface. UAE provided a shade better purity of extracted inulin than other two techniques. Degree of polymerization in inulin was also recorded to be better, might be due lesser degradation during extraction. Significant prebiotic activity was recorded while evaluation using Lactobacillus fermentum and it was 36 % more than glucose treatment. Energy density by UAE was few fold lesser than MAE. Carbon emission was far more less in both these methods than the conventional one.Not Availabl

Characterization of bond coat in a thermal barrier coated superalloy used in combustor liners of aero engines

This paper deals with characterization of a thermal barrier coated (TBC) Supeni 263 super alloy, mostly employed for manufacturing combustion chamber of aero turbines, with respect to microstructure, residual stress, hardness and with special emphasis in establishing the ductile to brittle transition temperature (DBTT) of the bond coat by using acoustic emission technique during room temperature and high temperature tensile tests. Results reveal that the residual stress was tensile in nature in the TBC layer and compressive in the bond coat as well as in the substrate. The DBTT of this bond coat is around 650°C, which is in close proximity to the value reported in literature for CoCrAlY type of bond coat. Finite element technique used for analyzing the equivalent stresses in the bond coat, at a particular load within the elastic limit of the composite specimens, revealed highest order of equivalent stress at 800°C as the bond coat is ductile above 650°C. Delamination of the bond coat and spallation of the TBC were evident at high stresses during high temperature (800°C) fatigue

Abstracts of National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020

This book presents the abstracts of the papers presented to the Online National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020 (RDMPMC-2020) held on 26th and 27th August 2020 organized by the Department of Metallurgical and Materials Science in Association with the Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, India. Conference Title: National Conference on Research and Developments in Material Processing, Modelling and Characterization 2020Conference Acronym: RDMPMC-2020Conference Date: 26–27 August 2020Conference Location: Online (Virtual Mode)Conference Organizer: Department of Metallurgical and Materials Engineering, National Institute of Technology JamshedpurCo-organizer: Department of Production and Industrial Engineering, National Institute of Technology Jamshedpur, Jharkhand, IndiaConference Sponsor: TEQIP-