scholarly journals A paradigm shift fully self-powered long-distance wireless sensing solution enabled by discharge-induced displacement current

2021 ◽  
Vol 7 (39) ◽  
Author(s):  
Haoyu Wang ◽  
Jiaqi Wang ◽  
Kuanming Yao ◽  
Jingjing Fu ◽  
Xin Xia ◽  
...  
Keyword(s):  
Paradigm Shift ◽  
Displacement Current ◽  
Wireless Sensing ◽  
Long Distance ◽  
Self Powered

A Self-Powered, Real-Time, NRF24L01 IoT Based-Cloud Enabled Service For Smart Agriculture Decision-Making System

2021 ◽  
Author(s):  
K. Lova Raju ◽  
V. Vijayaraghavan
Keyword(s):  
Precision Agriculture ◽  
Environmental Parameters ◽  
Field Evaluation ◽  
Low Noise ◽  
Heat Index ◽  
Low Noise Amplifiers ◽  
Agricultural Crop ◽  
Long Distance ◽  
Self Powered ◽  
Smart Agriculture

Abstract Internet of Things (IoT) based automation has provided sophisticated research and developments in the field of agriculture. In agriculture field production, using environmental and deployment sensors like DHT11, soil moisture, soil temperature, and so on, IoT has been utilised to monitor field conditions and automation in precision agriculture. The environmental parameters, field evaluation, deployment parameters, and shortage of water has become an unresolved task for agriculture monitoring. All of this leads to insufficient production of the agricultural crop. To eradicate the above-mentioned problems, we proposed a system in the using an architectural manner. This system uses an NRF24L01 module with in-built power and low noise amplifiers to enable a long-distance communication for transmission of the field information about the current crop situation to the farmers. This work is investigating an appropriate, reasonable, and applied IoT technology for precision agriculture by considering various applications of agriculture and experiments. The proposed system reduces power consumption, and improves operational efficiency. The proposed system reduces human efforts and also evaluates heat index measurement to monitor the environment. Based on the experiments, the current consumption and life expectancy of the AWMU are determined to be 0.02819 A and 3 days 20 hours 13 minutes and 47 seconds, respectively. Furthermore, the maximum transmission of AWMU is in an environmental location is 200 meters line of sight from the router.

scholarly journals Growth of Sharing Economy in Hungary; Long Distance Car Sharing - A Case Study of Oszkár

2020 ◽  
Vol 12 (3) ◽  
pp. 9
Author(s):  
Kinga Szabó ◽  
Gauri Shankar Gupta
Keyword(s):  
Traffic Congestion ◽  
Paradigm Shift ◽  
Sharing Economy ◽  
Car Sharing ◽  
Long Distance ◽  
Social Construct ◽  
Customer Reviews ◽  
Societal Values ◽  
Healthy Growth

Rapid growth of sharing economy in the last two decades is the outcome of a paradigm shift in global capitalism and societal values. Based on digital identity and the Trust and Reputation Index, IT platforms have brought together strangers who under new social construct, share under-utilized capacities and assets with those who need them. Radius of trust which was initially confined to family and friends; now encompasses strangers who speak no common language and who live oceans apart. Hungary is no exception to this global shift. Sharing economy in Hungary has registered healthy growth specially in the areas of transportation and accommodation. Oszkár, a long-distance car-sharing company presents a good example of this paradigm shift in societal values and sharing with strangers. This platform has recorded impressive growth of over 67% between 2015-2018 with very positive customer reviews. Moreover, this represents an environmentally-friendly sustainable practice which successfully reduces carbon foot-print and traffic congestion.

scholarly journals A self-powered multi-broadcasting wireless sensing system realized with an all-in-one triboelectric nanogenerator

Nano Energy ◽  
2019 ◽  
Vol 62 ◽  
pp. 691-699 ◽  
Author(s):  
Asif Abdullah Khan ◽  
Alam Mahmud ◽  
Steven Zhang ◽  
Shariful Islam ◽  
Peter Voss ◽  
...  
Keyword(s):  
Triboelectric Nanogenerator ◽  
Wireless Sensing ◽  
Sensing System ◽  
Self Powered ◽  
Wireless Sensing System

A power-transformed-and-managed triboelectric nanogenerator and its applications in a self-powered wireless sensing node

2014 ◽  
Vol 25 (22) ◽  
pp. 225402 ◽  
Author(s):  
Wei Tang ◽  
Tao Zhou ◽  
Chi Zhang ◽  
Feng Ru Fan ◽  
Chang Bao Han ◽  
...  
Keyword(s):  
Triboelectric Nanogenerator ◽  
Wireless Sensing ◽  
Self Powered

Self‐Powered Optical Switch Based on Triboelectrification‐Triggered Liquid Crystal Alignment for Wireless Sensing

2019 ◽  
Vol 29 (13) ◽  
pp. 1808633 ◽  
Author(s):  
Chen Zhang ◽  
Hailu Wang ◽  
Song Guan ◽  
Zihao Guo ◽  
Xiaoxiong Zheng ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Optical Switch ◽  
Wireless Sensing ◽  
Liquid Crystal Alignment ◽  
Crystal Alignment ◽  
Self Powered

scholarly journals Convergent patterns of long-distance nocturnal migration in noctuid moths and passerine birds

2011 ◽  
Vol 278 (1721) ◽  
pp. 3074-3080 ◽  
Author(s):  
Thomas Alerstam ◽  
Jason W. Chapman ◽  
Johan Bäckman ◽  
Alan D. Smith ◽  
Håkan Karlsson ◽  
...  
Keyword(s):  
Passerine Birds ◽  
Long Distance ◽  
Flight Behaviour ◽  
Preferred Direction ◽  
Migration Strategies ◽  
Migrant Birds ◽  
Nocturnal Migration ◽  
Self Powered ◽  
Migratory Strategies ◽  
Air Streams

Vast numbers of insects and passerines achieve long-distance migrations between summer and winter locations by undertaking high-altitude nocturnal flights. Insects such as noctuid moths fly relatively slowly in relation to the surrounding air, with airspeeds approximately one-third of that of passerines. Thus, it has been widely assumed that windborne insect migrants will have comparatively little control over their migration speed and direction compared with migrant birds. We used radar to carry out the first comparative analyses of the flight behaviour and migratory strategies of insects and birds under nearly equivalent natural conditions. Contrary to expectations, noctuid moths attained almost identical ground speeds and travel directions compared with passerines, despite their very different flight powers and sensory capacities. Moths achieved fast travel speeds in seasonally appropriate migration directions by exploiting favourably directed winds and selecting flight altitudes that coincided with the fastest air streams. By contrast, passerines were less selective of wind conditions, relying on self-powered flight in their seasonally preferred direction, often with little or no tailwind assistance. Our results demonstrate that noctuid moths and passerines show contrasting risk-prone and risk-averse migratory strategies in relation to wind. Comparative studies of the flight behaviours of distantly related taxa are critically important for understanding the evolution of animal migration strategies.

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