Results 11 to 20 of about 188,379 (279)

Research and Experiments of Hazelnut Harvesting Machine Based on CFD-DEM Analysis

open access: yesAgriculture, 2022
To solve the problem of difficult hazelnut harvesting in mountainous areas of Liaoning, China, a small pneumatic hazelnut harvesting machine was designed, which can realize negative pressure when picking up hazelnut mixtures and positive pressure when ...
Dezhi Ren   +7 more
doaj   +1 more source

Desenvolvimento e avaliação de um protótipo de cortador de base para colhedoras de cana-de-açúcar Development and evaluation of a prototype of base cutter for sugar-cane harvesters

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2002
Um protótipo de cortador de base para o seguimento pantográfico do perfil em colhedoras de cana-de-açúcar, foi projetado e construído e seu desempenho de flutuação foi avaliado em função da força normal de reação do perfil (F N). O trabalho foi conduzido
Carlos E. S. Volpato   +2 more
doaj   +1 more source

Nonlinear Energy Harvesting [PDF]

open access: yesPhysical Review Letters, 2009
Ambient energy harvesting has been in recent years the recurring object of a number of research efforts aimed at providing an autonomous solution to the powering of small-scale electronic mobile devices. Among the different solutions, vibration energy harvesting has played a major role due to the almost universal presence of mechanical vibrations: from
COTTONE, FRANCESCO   +2 more
openaire   +4 more sources

Analysis of the Key Factors Affecting the Capability and Optimization for Magnetostrictive Iron-Gallium Alloy Ambient Vibration Harvesters

open access: yesSensors, 2020
The basic phenomena of a cantilever energy harvesting device based on iron-gallium alloy magnetostrictive material for low frequency were systematically studied. The results highlighted how the physical parameters, geometric structure and bias conditions
Huifang Liu   +3 more
doaj   +1 more source

Plucked piezoelectric bimorphs for knee-joint energy harvesting: modelling and experimental validation [PDF]

open access: yes, 2011
The modern drive towards mobility and wireless devices is motivating intensive research in energy harvesting technologies. To reduce the battery burden on people, we propose the adoption of a frequency up-conversion strategy for a new piezoelectric ...
Pozzi, Michele, Zhu, Meiling
core   +1 more source

Energy Harvester Sensing [PDF]

open access: yesSensors, 2020
Our existence is immersed in a solution of energy, which is often left to degrade because we perceive this energy as expendable [...]
openaire   +4 more sources

Overview of sugarcane harvester virtual design in China

open access: yes浙江大学学报. 农业与生命科学版, 2014
Many developed countries, such as Austria and America, have been accomplished the mechanization fully during the sugarcane production. The development of some mechanical manufacturing is on the way to automated and intelligent direction.
Wang Jun, Hu Jinbing, Wu Jianfeng
doaj   +1 more source

Thermoelectric energy harvester with a cold start of 0.6 °C [PDF]

open access: yes, 2015
This paper presents the electrical and thermal design of a thermoelectric energy harvester power system and its characterisation. The energy harvester is powered by a single Thermoelectric Generator (TEG) of 449 couples connected via a power conditioning
Knox, A.R.   +3 more
core   +1 more source

Influência do auxílio mecânico na colheita de tomates Influence of the harvesting aid equipment in tomato harvest

open access: yesEngenharia Agrícola, 2006
O objetivo deste trabalho foi avaliar parâmetros que influenciam na colheita auxiliada e comparar a colheita tradicionalmente realizada para tomate de mesa em propriedades agrícolas, no Estado de São Paulo.
Augusto C. Sanchez   +5 more
doaj   +1 more source

Engineering and Economic Evaluation of a Prototype Fabricated for Harvesting Sugarcane

open access: yesDesigns, 2022
A sugarcane harvester prototype was fabricated and evaluated to save time, labor, and harvesting expenses, which are included in production costs. The single-row harvester prototype fits the functional needs of the physical qualities of sugarcane and was
Ahmed Mohamed El Shal   +2 more
doaj   +1 more source

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