Results 1 to 10 of about 5,234,588 (286)

Design and experimental evaluation of an orderly harvesting device for hydroponic leafy vegetables [PDF]

open access: yesFrontiers in Plant Science
Hydroponic leafy vegetables are well suited to standardized cultivation, but mechanical harvesting remains constrained by root entanglement, unstable clamping and disordered plant posture.
Ruifeng Yu   +4 more
doaj   +2 more sources

Design of grading and sorting mechanical system for Pleurotus eryngii based on differential separation principle [PDF]

open access: yesShipin yu jixie, 2023
Objective: In order to effectively solve the problems of low efficiency, quality fluctuation and increasing labor cost of artificial sorting. Methods: A mechanical system based on differential separation principle was designed to complete the ...
LIN Xin-hua   +4 more
doaj   +2 more sources

A New Tightening Device Used for Automobile Differential Mechanism

open access: yesDEStech Transactions on Engineering and Technology Research, 2017
A new tightening machine was designed in this paper, used for automobile differential mechanism. The PLC as the core controller of this device controlled two screwed shafts by Profibus-DP communication and positioning motor through indexing plate.8 bolts would be tightened to the set torque automatically when the start button pressed.
Da-peng MENG, Xin-ye WANG, De-chao ZHENG
openaire   +3 more sources

Electrostatic Micro-Electro-Mechanical-Systems (MEMS) Devices: A Comparison Among Numerical Techniques for Recovering the Membrane Profile

open access: yesIEEE Access, 2020
In this work, numerical techniques based on Shooting procedure, Relaxation scheme and Collocation technique have been used for recovering the profile of the membrane of a 1D electrostatic Micro-Electro-Mechanical-Systems (MEMS) device whose analytic ...
Mario Versaci   +2 more
doaj   +3 more sources

A Mechanical–Electrical Model to Describe the Negative Differential Resistance in Membranotronic Devices

open access: yesPhysica Status Solidi - Rapid Research Letters
Membranotronic devices are artificial neural membranes mimicing the functionality of biological neural networks. These devices rely on the emergence of negative differential resistance (NDR). A minimalistic physical model for membranotronic devices capable of generating NDR is presented.
Oliver G. Schmidt   +2 more
exaly   +2 more sources

Fluid Flow Mechanical Stimulation-Assisted Cartridge Device for the Osteogenic Differentiation of Human Mesenchymal Stem Cells [PDF]

open access: yesMicromachines, 2021
Human mesenchymal stem cells (hMSCs) have the potential to differentiate into different types of mesodermal tissues. In vitro proliferation and differentiation of hMSCs are necessary for bone regeneration in tissue engineering. The present study aimed to design and develop a fluid flow mechanically-assisted cartridge device to enhance the osteogenic ...
Ki-Taek Lim   +3 more
openaire   +3 more sources

Analysis and Simulation of the Electrical-Differential System of a Grab-Ship-Unloader-Crane

open access: yesIEEE Access, 2021
In the field of port handling for bulk-cargo with heavy load and high speed, the differential gear box is usually used for towing wire ropes, and then realizing the Horizontal transport and vertical unloading of goods. However, the design and manufacture
Yuantao Sun   +4 more
doaj   +1 more source

Electrostatic Circular Membrane MEMS: An Approach to the Optimal Control

open access: yesComputation, 2021
The recovery of the membrane profile of an electrostatic micro-electro-mechanical system (MEMS) is an important issue, because, when an external electrical voltage is applied, the membrane deforms with the risk of touching the upper plate of the device ...
Mario Versaci, Francesco Carlo Morabito
doaj   +1 more source

Design, Analysis and Simulation of a MEMS-Based Gyroscope with Differential Tunneling Magnetoresistance Sensing Structure

open access: yesSensors, 2020
The design, analysis, and simulation of a new Micro-electromechanical System (MEMS) gyroscope based on differential tunneling magnetoresistance sensing are presented in this paper.
Cheng Li, Bo Yang, Xin Guo, Xinru Chen
doaj   +1 more source

Multibody Modeling Method for UHV Porcelain Arresters Equipped with Lead Alloy Isolation Device

open access: yesShock and Vibration, 2021
This paper presents a multibody modeling method for seismic analysis of UHV porcelain surge arresters equipped with a kind of seismic isolation device. An UHV arrester is modeled as a planar multibody system whose number of DOF is equal to the number of ...
Xiaochao Su   +3 more
doaj   +1 more source

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