Results 21 to 30 of about 1,816 (247)

An Innovative Unit for Scraping Honeycombs [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2019
An innovative unit has been constructed and tested for scraping honeycombs at Meet-Salseel, EL-Dakahliyah, Egypt. Scraping results in facilitating extraction of the maximum quantity of honey from the honeycombs.
M. Al-Rajhi
doaj   +1 more source

Applicability of Aeroacoustic Scaling Laws of Leading Edge Serrations for Rotating Applications

open access: yesAcoustics, 2020
The dominant aeroacoustic mechanisms of serrated leading edges, subjected to highly turbulent inflow conditions, can be compressed to spanwise decorrelation effects as well as effects of destructive interference.
Till M. Biedermann   +4 more
doaj   +1 more source

Design and Experiment of Bionic Straw-Cutting Blades Based on Locusta Migratoria Manilensis

open access: yesAgriculture, 2023
Aimed at addressing the problems of the existing straw choppers on combine harvesters, such as a large cutting resistance and poor cutting effect, combined with bionic engineering technology and biological characteristics, a bionic model was used to ...
Jinpeng Hu   +7 more
doaj   +1 more source

Analysis of large edge breakage of WC-Co cemented carbide tool blades emerging in precision grinding process

open access: yesJournal of Materials Research and Technology, 2022
This paper analyzes the edge damage characteristics of the cutting blade made of WC-Co cemented carbide material after precision grinding. The edge damage characteristics present tiny cracks and serrated continuous edge breakage.
Li Wei   +6 more
doaj   +1 more source

Formation of Sectoral Residual Thermoplastic Tension Fields in Circular Saw Blade

open access: yesЛесной журнал, 2023
The efficiency of a stationary circular saw is determined by the performance and operational reliability of the woodcutting unit. During operation, the circular saw blade is exposed to a variety of complex loads and thermal conditions.
Vladimir I. Melekhov, Ivan I. Solovev
doaj   +1 more source

Serrated Glass Facades: the Influence of Façade Morphology on Aesthetic Quality

open access: yesChallenging Glass Conference Proceedings, 2018
Serrated building envelopes are a very eye-catching element of contemporary architecture. This type of façade in plan resembles the edges of a serrated blade, hence the name. Serrated facades substantially influence the building’s tectonics understood as
Marcin Brzezicki
doaj   +1 more source

Aerodynamic Performance Analysis of Trailing Edge Serrations on a Wells Turbine

open access: yesEnergies, 2022
The primary objective of this investigation was to explore the aerodynamic impact of adding trailing edge serrations to a Wells turbine. The baseline turbine consists of eight NACA 0015 blades. The blade chord length was 0.125 m and the span was 0.100 m.
Abdullah Saad Alkhalifa   +2 more
doaj   +1 more source

Effect of Rotor Blade Leading Edge Serrations on Fan Noise [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1972
Noise measured from a fan with conventional rotor blading for configurations both with and without a fan shroud plus inlet is compared with similar data for a fan with rotor blade leading edge serrations. Using the conventional fan as a reference, the test data show (1) an increase in high-frequency noise due to the serration pattern for both the ...
openaire   +1 more source

Internal Flow Characteristics and Aerodynamic Noise Suppression of Serrated Trailing Edge Rotor Blades in an Axial-flow Turbine [PDF]

open access: yesJournal of Applied Fluid Mechanics
The effects of rotor-stator interactions induce complex wake disturbances in turbine blades, and the use of a serrated trailing edge (STE) has been recognized as an effective flow control strategy.
D. D. Sui   +4 more
doaj   +1 more source

Cutting blade dentitions in squaliform sharks form by modification of inherited alternate tooth ordering patterns [PDF]

open access: yesRoyal Society Open Science, 2016
The squaliform sharks represent one of the most speciose shark clades. Many adult squaliforms have blade-like teeth, either on both jaws or restricted to the lower jaw, forming a continuous, serrated blade along the jaw margin.
Charlie Underwood   +2 more
doaj   +1 more source

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