A Demonstration of In-Situ Energy Harvesting for Low-Power Instrumentation in the Marine Environment

2002 ◽  
Author(s):  
Clare E. Reimers
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Marine Environment

A compact NaI(Tl) with avalanche photodiode gamma spectrometer for in situ radioactivity measurements in marine environment

2021 ◽  
Vol 92 (3) ◽  
pp. 033301
Author(s):  
Zhenyu Sun ◽  
Fan Zhou ◽  
Zhe Cao ◽  
Ziheng Zhou ◽  
Xiaohu Wang ◽  
...  
Keyword(s):  
Marine Environment ◽  
Avalanche Photodiode ◽  
Gamma Spectrometer ◽  
Radioactivity Measurements

In-situ liquid cell transmission electron microscopy guiding the design of large-sized cocatalysts coupled with ultra-small photocatalysts for highly efficient energy harvesting

2021 ◽  
Author(s):  
Chunlang Gao ◽  
Chunqiang Zhuang ◽  
Yuanli Li ◽  
Heyang Qi ◽  
Ge Chen ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Energy Harvesting ◽  
Design Strategy ◽  
Efficient Energy ◽  
Highly Efficient ◽  
Transmission Electron ◽  
Cell Transmission ◽  
Liquid Cell

In this study, we employed in-situ liquid cell transmission electron microscopy (LC-TEM) to carry out the new design strategy of precisely regulating the microstructure of large-sized cocatalysts for highly efficient...

Environment and Application Testbed for Low-Power Energy Harvesting System Design

2020 ◽  
pp. 1-1
Author(s):  
Lukas Sigrist ◽  
Andres Gomez ◽  
Matthias Leubin ◽  
Jan Beutel ◽  
Lothar Thiele
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
System Design ◽  
Energy Harvesting System

scholarly journals A Self-Powered PMFC-Based Wireless Sensor Node for Smart City Applications

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Daniel Ayala-Ruiz ◽  
Alejandro Castillo Atoche ◽  
Erica Ruiz-Ibarra ◽  
Edith Osorio de la Rosa ◽  
Javier Vázquez Castillo
Keyword(s):  
Energy Harvesting ◽  
Low Power ◽  
Sensor Node ◽  
Smart Cities ◽  
Cloud Services ◽  
Environmental Data ◽  
Security And Privacy ◽  
Wireless Sensor ◽  
Ultra Low Power ◽  
Self Powered

Long power wide area networks (LPWAN) systems play an important role in monitoring environmental conditions for smart cities applications. With the development of Internet of Things (IoT), wireless sensor networks (WSN), and energy harvesting devices, ultra-low power sensor nodes (SNs) are able to collect and monitor the information for environmental protection, urban planning, and risk prevention. This paper presents a WSN of self-powered IoT SNs energetically autonomous using Plant Microbial Fuel Cells (PMFCs). An energy harvesting device has been adapted with the PMFC to enable a batteryless operation of the SN providing power supply to the sensor network. The low-power communication feature of the SN network is used to monitor the environmental data with a dynamic power management strategy successfully designed for the PMFC-based LoRa sensor node. Environmental data of ozone (O3) and carbon dioxide (CO2) are monitored in real time through a web application providing IoT cloud services with security and privacy protocols.

Effects of corrosion on a steel bowstring bridge in marine environment: A case-study of assessment and retrofit

2021 ◽  
Vol 16 (4) ◽  
pp. 121-137
Author(s):  
Michele Fabio Granata
Keyword(s):  
Corrosion Protection ◽  
Marine Environment ◽  
Spray Coating ◽  
Thermal Spray Coating ◽  
In Situ Tests ◽  
Limit States ◽  
Intervention Measures ◽  
Near Future

The case-study of a steel bowstring bridge set in a marine environment and highly damaged by corrosion is presented. The bridge was built in 2004 and was repainted for corrosion protection in 2010. Despite the recent construction and the maintenance interventions, many structural elements like hangers are highly damaged by corrosion with decreasing performance in terms of serviceability and ultimate limit states. A deep investigation was carried out in order to assess the bridge and to establish the necessary retrofit actions to be carried out in the near future. In-situ tests reveal the reduced performance of the original steel in terms of strength and corrosion protection, together with the inefficiency of the successive maintenance interventions. The paper presents assessment of the bridge and retrofit measures, including replacement of the hangers and galvanization through thermal spray coating technology, in order to increase its service life. The results of the investigations and the intervention measures are outlined and discussed.

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