Results 11 to 20 of about 2,341 (249)

Design of Polarization-Maintaining FBGs Using Polyimide Films to Improve Strain-Temperature Sensing in CFRP Laminates

open access: yesIEEE Photonics Journal, 2021
Uniform Fiber Bragg Grating sensors based on Polarization-Maintaining fibers are designed for simultaneous longitudinal strain and temperature measurement of Carbon Fiber Reinforced Polymer laminates.
Andrea Annunziato   +4 more
doaj   +1 more source

Experimental and numerical analysis on suitability of S-Glass-Carbon fiber reinforced polymer composites for submarine hull

open access: yesDefence Technology, 2023
Suitability of S-Glass/carbon fiber reinforced polymer composite for submarine hull subjected to hydrostatic pressure has been investigated in the present study.
Elango Natarajan   +5 more
doaj   +1 more source

Small Arms of the Scythians. On the Time of Sigmoid Bow Appearance in Eastern Europe

open access: yesВестник Волгоградского государственного университета. Серия 4. История, регионоведение, международные отношения, 2015
Horse archers well-known in the ancient world used composite sigmoid bows for shooting (archery), the specific constructive features of which have been studied by the researchers.
Lukyashko Sergey Ivanovich
doaj   +1 more source

Depictions of archery in Sassanian silver plates and their relationship to warfare

open access: yesRevista de Artes Marciales Asiáticas, 2018
This article provides an examination of archery techniques, such as drawing techniques of the bowstring, the method of grasping the bow grip and placing the arrow, and their relationship to warfare as depicted on 22 Sassanian and early post-Sassanian ...
Kaveh Farrokh   +2 more
doaj   +1 more source

Analysis of influence of deformation modes of retaining structures on deformation of a side shield tunnel

open access: yesScientific Reports, 2022
In the process of foundation pit excavation, different retaining structures and support stiffness may lead to different deformation modes of retaining structures.
Gang Wei   +4 more
doaj   +1 more source

Mine safety assessment using gray relational analysis and bow tie model. [PDF]

open access: yesPLoS ONE, 2018
Mine safety assessment is a precondition for ensuring orderly and safety in production. The main purpose of this study was to prevent mine accidents more effectively by proposing a composite risk analysis model.
Qingwei Xu, Kaili Xu
doaj   +1 more source

Experimental Study on Surface Integrity of Solar Cell Silicon Wafers Sliced by Electrochemical Multi-Wire Saw

open access: yesMicromachines, 2022
Electrochemical multi-wire sawing (EMWS) is a hybrid machining method based on a traditional multi-wire sawing (MWS) system. In this new method, a silicon ingot is connected to a positive electrode; the slicing wire is connected to a negative electrode ...
Guanpei Bao   +4 more
doaj   +1 more source

A Persian archery manual by Mohammad Zaman

open access: yesRevista de Artes Marciales Asiáticas, 2016
Persian archery manuals provide lots of useful information on shooting with a Persian composite bow. The main aim of this article is to provide, for the first time, a full annotated translation of an undated Persian archery manual written by Mohammad ...
Manouchehr Moshtagh Khorasani   +1 more
doaj   +1 more source

Numerical Modeling of Particles Separation Method Based on Compound Electric Field

open access: yesApplied Sciences, 2020
This paper shows the results of simulation of features and usability of a proposed method for particle matter (PM) separation detection based on composite electric field.
Min Wang   +4 more
doaj   +1 more source

Savaş Tarihine Yön Veren Silah: Türk Kompozit Yayı ve Tamamlayıcı Unsurları

open access: yesJournal of Universal History Studies, 2022
Yaylar, basit ve kompozit olmak üzere ikiye ayrılır. Ancak kendi içerisinde farklı alt tiplere de ayrılabilmekteydiler. Kompozit yayları basit yaylardan ayıran en temel özellik, üretim aşamasında ahşap haricinde farklı malzemelerin de kullanılmış ...
Samet İkibeş
doaj   +1 more source

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