Results 41 to 50 of about 1,310,981 (293)

Three New Species of Clonostachys (Hypocreales, Ascomycota) from China

open access: yesJournal of Fungi, 2022
Three new species of Clonostachys are introduced based on specimens collected from China. Clonostachys chongqingensis sp. nov. is distinguished by pale yellow to pale orange-yellow perithecia with a very low papilla, clavate to subcylindrical asci ...
Zhao-Qing Zeng, Wen-Ying Zhuang
doaj   +1 more source

Simulation of low rigidity part machining applied to thin-walled structures [PDF]

open access: yes, 2010
The aim of this study is to evaluate the modelling of machining vibrations of thin-walled aluminium work- pieces at high productivity rate. The use of numerical simulation is generally aimed at giving optimal cutting conditions for the precision and the ...
Arnaud, Lionel   +9 more
core   +1 more source

Expansion of cylindrical tubular workpieces on high-voltage magnetic-pulse installation with controlled vacuum discharger

open access: yesElectrical engineering & Electromechanics, 2021
Purpose. An experimental verification of the existence of a range of values for the parameters of the capacitive energy storage of the magnetic-pulse installations with controlled vacuum discharger, in which, with a high probability, there is a «cut» of ...
L. A. Ljutenko, V. M. Mikhailov
doaj   +1 more source

Local buckling of steel cold-formed profiles under transverse bending [PDF]

open access: yesСтроительство уникальных зданий и сооружений, 2014
Danger local buckling (LPA) are virtually ignored in most engineering methods for calculating the cross-section profiles with complex shapes. The problem of LPA rod is reduced to the problem of overall sustainability.
Darya Alekseevna Trubina   +4 more
doaj  

RESEARCH ON DYNAMIC SIMILARITY MODEL TEST OF DAMAGE DETECTION FOR TRANSMISSION TOWER [PDF]

open access: yesCivil Engineering Journal, 2016
In order to explore the dynamic similarity model test method different from atmospheric boundary layer wind tunnel and shaking table model test, in accordance with dynamic similar theory, an elastic model of a transmission tower with 1/35 scale and 5.2m ...
Zhou Ling   +4 more
doaj   +1 more source

A novel method for improving interfacial joining strength of vacuum brazed TiAl/GH3536 thin-walled structure by Au coating

open access: yes, 2023
Lightweight components and materials based on the joining of dissimilar materials have attracted wide attention in aerospace field. To obtain the optimized micromorphology and interfacial microstructure of the brazed joints, a new method of Au layer ...
Luo, Yun   +11 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Influence of material removal on the dynamic behavior of thin-walled structures in peripheral milling [PDF]

open access: yes, 2006
Machining is a material removal process that alters the dynamic properties during machining operations. The peripheral milling of a thin-walled structure generates vibration of the workpiece and this influences the quality of the machined surface.
Arnaud, Lionel   +3 more
core   +1 more source

The Role of Ultra‐Thin Passive Films and Organic Adsorbates on Aluminum Chips for a Friction‐Induced Solid‐State Recycling Process

open access: yesAdvanced Engineering Materials, EarlyView.
Despite benefits to storage stability and handleability of aluminum scrap, octadecyl phosphonic acid (ODPA) SAMs reduce the tensile strength of wires produced using friction‐induced recycling. Etching and methyl diphosphonic acid (MDPA) coatings, however, have little effect.
Timothy D. Goller   +3 more
wiley   +1 more source

Buckling analysis of thin-walled cold-formed beams — short reviewngs [PDF]

open access: yesСтроительство уникальных зданий и сооружений, 2014
This article provides a review of recent publications relating to buckling analysis of cold-formed profile in bending. Nowadays thin-walled structures offer a promising direction of development of civil engineering in Russia and worldwide and can
Marsel Rinatovich Garifullin   +1 more
doaj  

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