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CFD Analysis of Heat Transfer Enhancement of Shell Side Fluid Flow Over Inline, Non-circular Leading-Edge Wing Shape Tube
Springer Science and Business Media LLC - Tập 8 - Trang 27-40 - 2022
The objective of the present numerical analysis is to study heat transfer rate and pressure drop characteristic of the fluid flowing over the inline arrangement of novel leading edge (narrow part of the tube cross-section face upstream side) wing-shaped tube bundle which is compared with the inline arrangement of the trailing edge (narrow part of the tube cross-section face downstream side) wing-s......
Predicting the Spread of COVID-19 Using $$SIR$$ Model Augmented to Incorporate Quarantine and Testing
Springer Science and Business Media LLC - Tập 5 - Trang 141-148 - 2020
India imposed a nationwide lockdown from 25th March 2020 onwards to combat the spread of COVID-19 pandemic. To model the spread of a disease and to predict its future course, epidemiologists make use of compartmental models such as the
$$SIR$$
model. In order to address some of the assumptions of the standard
$$SIR$$
model, a new modified version of
$$SIR$$
model is proposed in this paper......
Creep Behavior of Core (Metal)–Shell (Metallic Glass) Structure: a Molecular Dynamics Simulation Study
Springer Science and Business Media LLC - Tập 7 - Trang 405-410 - 2021
Core–shell structures have gained importance due to the multifunctional nature achieved by the combined properties of the core and shell. In the present study, the creep behavior of the Cu (core)–Cu50Zr50 metallic glass (shell) structure has been investigated using molecular dynamic simulations. Embedded atom method potential is used to model the interactions between Cu and Zr atoms. Model size of......
Mapping of Creep Strain in Notched Specimens of Boron-Added P91 Steel
Springer Science and Business Media LLC - Tập 7 - Trang 519-524 - 2022
Boron-added modified 9Cr-1Mo (P91B) steel is being considered as an alternate candidate material for steam generators of sodium cooled fast reactors. As components in service consist of discontinuities in geometry, the creep behaviour of P91B steel was investigated by including discontinuity in the form of U-notch. The notch root radius (r) of notched specimens was varied as 0.25, 1.25 and 2.5 mm,......
Các hợp kim tản mát cao cấp: Vật liệu thế hệ tiếp theo Dịch bởi AI
Springer Science and Business Media LLC - - Trang 1-17 - 2023
Nghiên cứu về các hợp kim tản mát cao (HEAs) đã nổi lên như một lĩnh vực đang phát triển mạnh mẽ trong vài năm qua. Nhờ vào cách tiếp cận thiết kế độc đáo liên quan đến nhiều nguyên tố chính, HEAs sở hữu cấu trúc vi mô độc đáo và tính chất ấn tượng. Qua nhiều năm, nhiều hệ thống HEA đã được báo cáo với sự kết hợp giữa sức mạnh và độ dẻo tốt nhất, độ cứng cao, tính ổn định nhiệt, khả năng chống mỏi......
Qualification by Prototype Component Test: An Engineering Solution to Address Manufacturing Deviation
Springer Science and Business Media LLC - Tập 7 - Trang 525-532 - 2021
Sodium cooled fast breeder reactors (SFR) are designed to operate at high-temperature conditions to achieve very high thermal efficiency (> 40%). Prototype Fast Breeder Reactor (PFBR) is a typical medium-sized SFR nearing the final stage of commissioning activities at Kalpakkam. High-temperature service conditions pose challenges in the structural design of PFBR components. Slenderness is the main......
An Arduino Based On-Site Monitoring and Gravitational Search Algorithm Based Parameter Estimation for PV Module
Springer Science and Business Media LLC - Tập 6 - Trang 805-818 - 2021
Performance monitoring and parameter estimation of a PV module are challenging because of nonlinear module characteristics and variations of environmental factors. In the existing literatures, parameter estimation is mostly done on the standard test condition or in controlled experimental environment. Unlike that, the PV module is exposed to the natural weather conditions in the Himalayan city of ......
Recycling Scrap Tire-Derived Fibers in Concrete
Springer Science and Business Media LLC - Tập 7 - Trang 207-217 - 2021
This paper describes results of several studies undertaken by the authors in the bid to valorize both Scrap Tire Polymeric Fiber (SPF) and Scrap Tire Steel Fiber (SSF) as value-added reinforcements in cement-based composites. Current scrap tire by-product management practices, fiber characteristics, and their influence on the plastic shrinkage cracking and the mechanical post-crack response of cem......
Application of Geospatial Technologies in the COVID-19 Fight of Ghana
Springer Science and Business Media LLC - Tập 5 - Trang 193-204 - 2020
The SARS-CoV-2 infections continue unabated in Ghana and globally. The identification of country dynamics of the virus, its spread, and country-specific interventions in tackling the menace including the application of geospatial technologies. This research sought to highlight the use of geospatial technologies in the fight against COVID-19 in Ghana with best practices from China where the infecti......
P-FAB: A Fiber-Optic Biosensor Device for Rapid Detection of COVID-19
Springer Science and Business Media LLC - Tập 5 - Trang 211-215 - 2020
Rapid and low-cost diagnosis of COVID-19 is essential to identify the infected subjects, particularly the asymptomatic cases, primarily to arrest the spread of the disease through local transmission. Antibody-based chromatographic serological tests, as an alternative to RT-PCR, offer only limited help due to high false positives. We propose to exploit our field-deployable/portable plasmonic fiber-......
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