Results 61 to 70 of about 2,654 (215)

Advanced Functional Materials for Marine Energy Utilization

open access: yesInterdisciplinary Materials, EarlyView.
Marine renewable energy is an important future clean energy supply. We construct and sort out the material system for marine energy capture and conversion, transmission, storage, and utilization for the first time. ABSTRACT Several features of marine energy, including large reserves, sustainable utilization, environmental friendliness, make it a ...
Qiang Yu   +7 more
wiley   +1 more source

COSTS, YIELDS, AND NET RETURNS, COMMERCIAL ULTRA-NARROW ROW COTTON PRODUCTION, MISSISSIPPI, 1999 [PDF]

open access: yes
An analysis of a 1999 sample of 13 no-till producers indicates that over a reasonable range of cotton lint prices, ultra narrow cotton production may result in larger net returns per acre than conventional production practices.
Cooke, Fred T., Jr.   +2 more
core   +1 more source

First 20 Years of Orbitrap Mass Spectrometry as the Mainstream Analytical Technique

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT This review traces the first 20 years of Orbitrap mass spectrometry as a mainstream high‑resolution and accurate‑mass (HR/AM) technology. It outlines the historical development of the Orbitrap analyzer, the evolution of major instrument families, and the key technological innovations that enabled its widespread adoption. Particular emphasis is
Alexander Makarov
wiley   +1 more source

Design and systematic evaluation of an under-canopy robotic spray system for row crops

open access: yesSmart Agricultural Technology
Despite having made much improvement in sensing, automation, and control, the current broadcast spraying system has several drawbacks, such as uneven coverage, excessive chemical use, and deviation from recommended dosage.
Prashanta Pokharel   +3 more
doaj   +1 more source

COSTS, YIELDS, AND NET RETURNS, COMMERCIAL NO-TILL COTTON PRODUCTION, MISSISSIPPI, 1999 [PDF]

open access: yes
An analysis of a 1999 sample of ten no-till producers indicates that over a reasonable range of cotton lint prices, no-till cotton production may result in larger net returns per acre than conventional tillage.
Cooke, Fred T., Jr.   +1 more
core   +1 more source

Control System for the Navigation of the Agricultural Robots: A Review

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT Control systems for the navigation of autonomous agricultural robots—particularly those operating in uneven terrain and in the presence of static or dynamic obstacles—have advanced considerably in recent years. As conventional machinery evolves toward increasingly automated systems, the design of reliable navigation controllers has become ...
Edna Carolina Moriones Polanía   +3 more
wiley   +1 more source

Fitting and testing roll-over protective structures on self-propelled agricultural machinery

open access: yesJournal of Agricultural Engineering, 2013
Roll-Over Protective Structure (ROPS) represents the state of art for the driver’s protection in case of tractors roll-over. Despite their real risk of overturning, the ROPS approach for the Self-Propelled agricultural Machinery (SPM) is quite recent ...
Domenico Pessina, Davide Facchinetti
doaj   +1 more source

2000 Estimated Machinery Costs for South Carolina Farms [PDF]

open access: yes
Farm Management,
Ferreira, Wilder N.   +2 more
core   +1 more source

Ionogel Actuators: A Review

open access: yesSmartBot, EarlyView.
Ionogels dynamically and functionally couple ionic liquids with polymer networks, enabling multiscale programmable deformation and motion under electrical, magnetic, optical, thermal, humidity, and chemical stimuli. This article systematically elucidates the constituent components, structural design, and multiscale actuation mechanisms of ionogel ...
Dezhou Cao   +5 more
wiley   +1 more source

Vibration Severity Analysis in a Cabin of a Self-Propelled Sprayer: A Study Considering the Variation in the Forward Speed and the Tire Inflation Pressure in an Ergonomic Context

open access: yesAgriEngineering
The mechanical vibrations that occur in agricultural machinery, arising from terrain irregularities or the moving parts of the machine, can harm the operators when they are subjected to work for many hours daily over a period of many years.
Maria T. R. Silva   +3 more
doaj   +1 more source

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