scholarly journals Fabrication and application of electrically conducting composites for electromagnetic interference shielding of remotely piloted aircraft systems

2020 ◽  
Vol 232 ◽  
pp. 111498 ◽  
Author(s):  
Roman Turczyn ◽  
Katarzyna Krukiewicz ◽  
Andrzej Katunin ◽  
Jan Sroka ◽  
Przemysław Sul
Keyword(s):  
Electromagnetic Interference ◽  
Electromagnetic Interference Shielding ◽  
Electrically Conducting ◽  
Aircraft Systems ◽  
Remotely Piloted Aircraft ◽  
Conducting Composites

Electrospinning Nanofibers of PANI/PMMA Blends

2002 ◽  
Vol 736 ◽  
Author(s):  
Keyur Desai ◽  
Changmo Sung
Keyword(s):  
Mechanical Properties ◽  
Methyl Methacrylate ◽  
Electromagnetic Interference ◽  
Electronic Circuits ◽  
Electromagnetic Interference Shielding ◽  
Fiber Morphology ◽  
Electrically Conducting ◽  
Electronically Conducting Polymers ◽  
Energy Conversion Devices ◽  
Pmma Blends

ABSTRACTElectrically conducting organic polymers are a novel class of ‘synthetic metals’ that combine the chemical and mechanical properties of polymers with the electronic properties of metals and semiconductors. Electronically conducting polymers have been studied extensively owing to their applications in energy conversion devices, sensors, electro chromic devices, electromagnetic interference shielding (EMI), electronic circuits etc. Polyaniline - an organic conducting polymer - has been blended with poly methyl methacrylate and the blends have been electrospun to produce conducting nanofibers. The electrospun blends have been characterized to study fiber morphology and formulate conditions for nanofiber formation.

scholarly journals Tailoring the dispersion of multiwall carbon nanotubes in co-continuous PVDF/ABS blends to design materials with enhanced electromagnetic interference shielding

2015 ◽  
Vol 3 (15) ◽  
pp. 7974-7985 ◽  
Author(s):  
Goutam Prasanna Kar ◽  
Sourav Biswas ◽  
Rani Rohini ◽  
Suryasarathi Bose
Keyword(s):  
Carbon Nanotubes ◽  
Electromagnetic Interference ◽  
Multiwall Carbon Nanotubes ◽  
Electromagnetic Interference Shielding ◽  
Design Materials ◽  
Multiwall Carbon ◽  
Conducting Composites

Highly conducting composites were derived by selectively localizing multiwall carbon nanotubes (MWNTs) in co-continuous PVDF/ABS (50/50, wt/wt) blends.

scholarly journals Detailed Characterization and Monitoring of a Retrogressive Thaw Slump from Remotely Piloted Aircraft Systems and Identifying Associated Influence on Carbon and Nitrogen Export

2021 ◽  
Vol 13 (2) ◽  
pp. 171
Author(s):  
Kevin W. Turner ◽  
Michelle D. Pearce ◽  
Daniel D. Hughes
Keyword(s):  
Surface Model ◽  
Carbon And Nitrogen ◽  
Aircraft Systems ◽  
Detailed Classification ◽  
Fill Volume ◽  
Remotely Piloted Aircraft ◽  
Total Irradiance ◽  
Retrogressive Thaw Slump ◽  
Rain Events ◽  
Sediment Export

Ice-rich permafrost landscapes are sensitive to ongoing changes in climate. Permafrost retrogressive thaw slumps (RTSs) represent one of the more abrupt and prolonged disturbances, which occur along Arctic river and lake shorelines. These features impact local travel and infrastructure, and there are many questions regarding associated impacts on biogeochemical cycling. Predicting the duration and magnitude of impacts requires that we enhance our knowledge of RTS geomorphological drivers and rates of change. Here we demonstrate the utility of remotely piloted aircraft systems (RPAS) for documenting the volumetric change, associated drivers and potential impacts of the largest active RTS along the Old Crow River in Old Crow Flats, Yukon, Canada. RPAS surveys revealed that 29,174 m3 of sediment was exported during the initial evacuation in June 2016 and an additional 18,845 m3 continued to be exported until June 2019. More sediment export occurred during the warmer 2017 summer that experienced less cumulative rainfall than summer 2018. However, several rain events during 2017 were of higher intensity than during 2018. Overall mean soil organic carbon (SOC) and total nitrogen (TN) within sampled thaw slump sediment was 1.36% and 0.11%, respectively. A combination of multispectral, thermal and irradiance (derived from the RPAS digital surface model) data provided detailed classification of thaw slump floor terrain types including raised dry clay lobes, shaded and relatively stable, and low-lying evacuation-prone sediments. Notably, the path of evacuation-prone sediments extended to a series of ice wedges in the northern headwall, where total irradiance was highest. Using thaw slump floor mean SOC and TN values in conjunction with sediment bulk density and thaw slump fill volume, we estimated that 713 t SOC and 58 t TN were exported to the Old Crow River during the three-year study. Findings showcase the utility of high-resolution RPAS datasets for refining our knowledge of thaw slump geomorphology and associated impacts.

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