Results 21 to 30 of about 5,132,390 (317)

The Staple-Shape Plate Springs Engineering Calculation Method

open access: yesНаука и техника, 2021
The new types of elastic devices – staple-shape plate spring and leaf spring - have been developed at the Kyiv National University of Construction and Architecture.
M. K. Sukach
doaj   +1 more source

Vertical Seismic Isolation Device for Three-Dimensional Seismic Isolation of Nuclear Power Plant Equipment—Case Study

open access: yesApplied Sciences, 2021
The purpose of this study was to develop a vertical seismic isolation device essential for the three-dimensional seismic isolation design of nuclear power plant equipment.
Gyeong-Hoi Koo   +4 more
doaj   +1 more source

ENERGY STORAGE DEVICE OPTIMIZATION IN PERIPHERY-TYPE DOCKING ASSEMBLY [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
The paper considers selection of parameters of the spacecraft periphery-type docking assembly. The kinematic scheme of its docking mechanism is based on the Gough-Stewart platform. Constructive implementation of its linear elements in operation is called
Yaroslav V. Rasskazov   +1 more
doaj   +1 more source

Parameter Optimization and Experiment of a Seed Furrow Cleaning Device for No-Till Maize Seeding

open access: yesAgriculture, 2022
To avoid the issues of seeds lying atop straw, where the seeds cannot germinate, during no-till maize seeding, a seed furrow cleaning device is proposed.
Panpan Yuan   +6 more
doaj   +1 more source

Design of Electromagnetic Vibration Power Generation Based on Spring Amplitude Amplification

open access: yes发电技术, 2023
For new energy vibration power generation, this paper proposed an electromagnetic vibration energy harvesting device that uses a spring to increase the amplitude.
YANG Yongbao   +4 more
doaj   +1 more source

DESIGN AND EXPERIMENT OF PRESSURE-HOLDING PRECISION SEED-METERING DEVICE FOR MAIZE

open access: yesINMATEH Agricultural Engineering, 2023
In order to further improve the seeding performance of the maize seed-metering device, a pressure-holding precision seed-metering device for maize was designed.
Yunhe Zhang   +6 more
semanticscholar   +1 more source

Seasons, weather, and device-measured movement behaviors: a scoping review from 2006 to 2020

open access: yesInternational Journal of Behavioral Nutrition and Physical Activity, 2021
Background This scoping review summarized research on (a) seasonal differences in physical activity and sedentary behavior, and (b) specific weather indices associated with those behaviors.
Taylor B Turrisi   +7 more
semanticscholar   +1 more source

Quantitative Multiparameter Evaluation of Vacuoles in Intraocular Lenses Employing a High-Magnification Digital Microscopy Method

open access: yesJournal of Ophthalmology, 2019
As small imperfections with micrometric sizes, fluid-filled vacuoles, also referred to as glistenings, in intraocular lenses (IOLs) have been known to induce significant unwanted light scattering that in several cases presumably cause complaints and ...
Vincent Spiezio   +3 more
doaj   +1 more source

Design of an Automatically Controlled Multi-Axis Stretching Device for Mechanical Evaluations of the Anterior Eye Segment

open access: yesBioengineering, 2023
The young eye has an accommodative ability involving lens shape changes to focus over different distances. This function gradually decreases with age, resulting in presbyopia. Greater insights into the mechanical properties of anterior eye structures can
Kehao Wang   +7 more
doaj   +1 more source

Passive Attenuation of Mechanical Vibrations with a Superelastic SMA Bending Springs: An Experimental Investigation

open access: yesSensors, 2022
This work presents an experimental study related to the mechanical performance of a special design spring fabricated with a superelastic shape memory alloy (SMA-SE).
Richard Senko   +7 more
doaj   +1 more source

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