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11. Embedded system based smart walking assistance device for visually impaired people.

Author

Saurav, Swapnil, Reddy, Gangireddy Prabhakar, Prasad, B. Ravi, and Mouleeswaran, S. K.

Subjects
*PEOPLE with visual disabilities, *PEOPLE with disabilities, *STROKE patients, *CIVIL rights
Abstract

These papers set out recommendations to prepare a framework for the regeneration of neurons from the stroke patient by present solutions, which normally concentrates the reconstruction robots in order to reduce the patient's influences as a result of stroke disease. It has an ultrasonic blind handle for speech reproduction. Visually disabled persons have traditionally used a stick to see if barriers are there. But in different respects this stick is inefficient and the individual who uses it must face many problems. The purpose of this article is to provide a better navigational stick for visually disabled persons. The ultrasonic blind handle is more powerful than the current handle as the use of sensors facilitates target tracking. Speech replay helps the blind individual take the right steps to reach the required target and the obstacles. By using a sensor on the stick, pit can be detected. [ABSTRACT FROM AUTHOR]

Published
2022
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18. Supply Chain Management Strategies and Risk Assessment in Retail Environments

Author

Kumar, Akhilesh, Saurav, Swapnil, Kumar, Akhilesh, and Saurav, Swapnil

Subjects
Retail trade--Management, Business logistics--Management
Abstract

The proper understanding and managing of project risks and uncertainties is crucial to any organization. It is paramount that all phases of project development and execution are monitored to avoid poor project results from meager economics, overspending, and reputation. Supply Chain Management Strategies and Risk Assessment in Retail Environments is a comprehensive reference source for the latest scholarly material on effectively managing risk factors and implementing the latest supply management strategies in retail environments. Featuring coverage on relevant topics such as omni-channel retail, green supply chain, and customer loyalty, this book is geared toward academicians, researchers, and students seeking current research on the challenges and opportunities available in the realm of retail and the flow of materials, information, and finances between companies and consumers.

Published
2018

19. Interface Engineering via Sputtered Oxygenated CdS:O Window Layer for Highly Efficient Sb2Se3 Thin‐Film Solar Cells with Efficiency Above 7%.

Author

Guo, Liping, Zhang, Baiyu, Ranjit, Smriti, Wall, Jacob, Saurav, Swapnil, Hauser, Adam J., Xing, Guozhong, Li, Lin, Qian, Xiaofeng, and Yan, Feng

Subjects
SOLAR cell efficiency, SILICON solar cells, ANTIMONY, OPEN-circuit voltage, CADMIUM sulfide, SOLAR cells, WINDOWS
Abstract

Antimony chalcogenide Sb2Se3 is an emerging photovoltaic absorber due to its appropriate bandgap (≈1.1 eV), high absorption coefficient (>105 cm−1), suitable p‐type conductivity, low toxicity, earth abundance, and excellent stability. However, the stringent growth condition and low photovoltage limit its power conversion efficiency (PCE). Herein, via a combined theoretical and experimental study, interface engineering via an oxygenated cadmium sulfide (CdS) window layer (CdS:O) is found to be an effective approach to improve the device performance of CdS:O/Sb2Se3 solar cells. The sputtered oxygenated CdS:O window layer can be used to replace conventional chemical‐bath‐deposited CdS window layer in the Sb2Se3 devices. The best PCE of 7.01% is demonstrated in the superstrate configuration of fluorine‐doped SnO2/CdS:O/Sb2Se3/graphite with a high open‐circuit voltage of 0.432 V, where Sb2Se3 is fabricated using the close space sublimation technique. The interfacial diffusion between Sb2Se3 and sputtered CdS:O is significantly suppressed by introducing oxygen at the interface, which prevents Cd diffusion and the formation of Cd interstitials. Combined device physics characterizations and theoretical calculations reveal that oxygen in the CdS:O/Sb2Se3 interface can increase depletion region, built‐in voltage, and reduce interfacial recombination. These findings provide the guidance to optimize quasi‐one‐dimensional non‐cubic earth‐abundant chalcogenide photovoltaic devices through interface engineering. [ABSTRACT FROM AUTHOR]

Published
2019
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