Results 21 to 30 of about 3,983 (256)

A STUDY OF THE EFFECT OF SEMI-ANGLE OF CONE ON THE VIBRATION CHARACTERISTICS OF CYLINDRICAL-CONICAL COUPLED SHELL STRUCTURE

open access: yesJournal of Engineering, 2023
In this work, the effect of variation of semi-angle of the conical part on the vibration characteristics of cylindrical-conical coupled structure is investigated. The shell is made of polyester resin reinforced by continuous E-glass fibers.
Muhsin J. Jweeg   +2 more
doaj   +1 more source

Parametric instability analysis of multi-segment conical shells under periodic spin speed

open access: yesResults in Physics
This study is the first to investigate the parametric instability of multi-segment conical shells (MSCSs) under periodic spin speed. The artificial spring simulates the general boundary constraints and the constraints between shell segments.
Chun Hao Zhang
doaj   +1 more source

Desain Dan Pembuatan Alat Destilasi Asap Cair (Liquid Smoke)

open access: yesPatria Artha Technological Journal, 2021
Liquid smoke is a condensate liquid from the pyrolysis of coconut shells which contains the main constituent compounds of acids, phenols, and carbonyls, so it is widely applied as a natural preservative in food and provides sensory characteristics in the
Said Hi Abbas, Bambang Tjiroso
doaj   +1 more source

Comparison of cone and cone shell configuration for depth sensitive fluorescence measurements in turbid media [PDF]

open access: yesSPIE Proceedings, 2014
We have developed a novel cone shell illumination and detection configurations using combination of axicon lenses for depth sensitive fluorescence spectroscopy. The probe was demonstrated experimentally to be able to selectively detecting fluorescence from different depths from a two-layered turbid agar phantom.
Ong, Yi Hong, Liu, Quan
openaire   +2 more sources

Shell Analogy Analysis for Plate-cone Cylinder Reticulated Shell

open access: yesDEStech Transactions on Engineering and Technology Research, 2019
Plate-cone reticulated shell is a new type of space steel structures with good mechanical behavior and technical economy. In this paper, shell analogy method- three-layer shell analogy method is put forward. Based on mechanical characteristics of plate-cone cylinder reticulated shell, it is equated to a special type of three-layer thin shell working ...
Xing Wang   +3 more
openaire   +2 more sources

Acherontiscus caledoniae: the earliest heterodont and durophagous tetrapod [PDF]

open access: yesRoyal Society Open Science, 2019
The enigmatic tetrapod Acherontiscus caledoniae from the Pendleian stage of the Early Carboniferous shows heterodontous and durophagous teeth, representing the earliest known examples of significant adaptations in tetrapod dental morphology. Tetrapods of
Jennifer A. Clack   +5 more
doaj   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

open access: yesAdvanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge   +4 more
wiley   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

open access: yesAdvanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke   +3 more
wiley   +1 more source

From Geometry to Function: Programmable Mechanical Response in 3D‐Printed Adipose‐Inspired Soft Metamaterials

open access: yesAdvanced Functional Materials, EarlyView.
Geometry‐driven design of soft cellular metamaterials is systematically investigated by combining experiments, finite element modeling, and statistical prediction. The study quantifies how unit cell geometry and material properties govern stiffness, instability, densification, and energy absorption.
Alice Berardo   +4 more
wiley   +1 more source

A universal power law for modelling the growth and form of teeth, claws, horns, thorns, beaks, and shells

open access: yesBMC Biology, 2021
Background A major goal of evolutionary developmental biology is to discover general models and mechanisms that create the phenotypes of organisms. However, universal models of such fundamental growth and form are rare, presumably due to the limited ...
Alistair R. Evans   +9 more
doaj   +1 more source

Home - About - Disclaimer - Privacy