Results 31 to 40 of about 21,353 (289)

Coefficient diagram method-based control of semi-active vehicle suspensions with performance evaluation over circular and trapezoidal speed humps at multiple speeds

open access: yesJournal of Engineering and Applied Science
The occurrence of abrupt vertical excitations, such as speed bumps, complicates the suspension system’s task of balancing stability with ride comfort. This paper uses the Coefficient Diagram Method (CDM) to design a semi-active suspension controller in a
Mohamed H. Abdelati   +4 more
doaj   +1 more source

Biodegradable Wireless Soil Urea Sensor Using Metamaterial Perfect Absorber for Distributed Deployment in Precision Agriculture

open access: yesAdvanced Materials Technologies, EarlyView.
In this study, we propose a biodegradable wireless soil urea sensor for precision agriculture. The sensor's electromagnetic response varies depending on the urea concentration, allowing the measurement of relative soil urea concentrations by analyzing the time‐transient electromagnetic response.
Yu Tanaami   +5 more
wiley   +1 more source

Precision planter monitoring system based on mobile communication network

open access: yesIET Networks, EarlyView., 2022
Abstract Sowing is an important link in agricultural production and the basis for ensuring high yields and bumper harvests. Agriculture requires precision plows with good performance and stable work. However, the seeding process is in a completely closed state, and the operator relies mainly on experience to judge the operating state and performance of
Bing Li, Jiyun Li
wiley   +1 more source

Enhanced engine misfire diagnosis through integration of vibration and acoustic emission signals using artificial neural networks

open access: yesJournal of Engineering and Applied Science
An accurate Engine Misfire Detection diagnosis ensures the engine runs well and reduces emissions. An ANN has successfully combined vibration and acoustic emission (AE) signals to improve the detection of misfires in engines. The vibration and AE signals
Mohamed H. Abdelati   +3 more
doaj   +1 more source

Adapting to Changing Rainfall and Developing Off‐Farm Employment: Implications for the Adoption of Direct Seeding in Rice Production

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Rice is the main staple food for more than half of the world's population and the income from rice is an essential source for livelihoods of millions of households. We examine whether direct seed in rice production is an adaptation of rice farmers to rainfall changes and farm labor scarcity.
Manh Hung Do
wiley   +1 more source

How Video‐Based Information Affects Farmers' Willingness to Pay for Drone Services

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Professional service for digital technology like agricultural drones lowers transaction costs and scope thresholds for smallholders. Meanwhile, perceptual adoption barriers remain underexplored. We conduct a two‐stage choice experiment with a randomized video‐based information treatment among 384 Chinese crop farmers to measure its effect on ...
Hua Zhang   +4 more
wiley   +1 more source

Safe Tractor Operations: Tractor Operator Checklist

open access: yesEDIS
An operator checklist is provided at the end of this publication from the Safe Tractor Operations series. This checklist is designed so that it can be kept as a record of a tractor operator’s training. Written by Serap Gorucu, Carol J. Lehtola, and Charles M.
Serap Gorucu   +2 more
openaire   +3 more sources

Special Tests; Lawn and Garden Tractors [PDF]

open access: yes, 1990
During the 90-ies series of garden tractors were evaluated. These were NOT official tractors tests. The reports of the evaluations were proprietary.
Louis I. leviticus   +1 more
core  

Rural Labor Supply and Economic Opportunities: Commuting, Migration, Tariffs, and Immigration

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT Some rural counties remain dependent on agricultural or manufacturing jobs, but an increasing proportion have diversified economics. Rural counties also differ in their abilities to commute to an urban market characterized by higher wages and labor productivity.
Peter F. Orazem, Mary C. Ahearn
wiley   +1 more source

Correlation Between Agricultural Machinery Fleet and Arable Land Area

open access: yesСельскохозяйственные машины и технологии
The paper examines the dependence of grain and crop production volumes on the availability and utilization of land resources in agriculture. (Research purpose) The study carries out a retrospective analysis of overarching trends and correlation between ...
Yu. S. Tsench, A. V. Mironova
doaj   +1 more source

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