Results 91 to 100 of about 611,170 (310)

Sound transmission through panels and shells filled with porous material in the presence of external flow

open access: yes, 2014
With increasingly tighter regulations on noise exposure during flight, aircraft designers have been compelled to innovate structures that minimise noise transmission into the cabin space.
Zhou, Jie
core   +1 more source

Optimized formulas of the gravitational field of a vertical cylindrical prism

open access: yesGeo-spatial Information Science
Modeling the gravitational effects of the topography and other layers of the Earth is the basis not only for gravity corrections and reductions in geodesy but also for gravity inversions and interpretations in geophysics.
Xiao-Le Deng   +2 more
doaj   +1 more source

Design and optimization of the large span dry-coal-shed latticed shell in Liyuan of Henan province

open access: yesMATEC Web of Conferences, 2017
The design and optimization about the large span dry-coal-shed latticed shell in Liyuan of Henan province were studied. On the basis of the structural scheme of double-layer cylindrical reticulated shell, the optimization scheme of the folding double ...
Du Wenfeng, Liu Chunyu, Sun Yun, Liu Qi
doaj   +1 more source

Damage Detection of Circular Cylindrical Shells by Ritz Method and Wavelet Analysis

open access: yesElectronic Journal of Structural Engineering, 2015
This paper presents a new technique based on the Ritz method for the damage detection of circular cylindrical shell structures. Sander’s thin shell theory together with the Ritz method is used to analyse the dynamic behaviour of circular cylindrical ...
L. Sarker   +3 more
doaj   +1 more source

Hydro‐ and Lipophilicity of Molecular‐Size‐Controlled Hydrogel Drug Carriers

open access: yesAdvanced Materials Technologies, EarlyView.
We investigate nano‐sized hydrogel drug carriers with tailored hydro‐ and lipophilicity. We design their encapsulation and structure‐forming capabilities and follow them in real time during fabrication using time‐resolved and in situ grazing incidence x‐ray scattering.
Elisabeth Erbes   +21 more
wiley   +1 more source

Analytical modeling of a thin-walled cylindrical workpiece during the turning process. Stability analysis of a cutting process [PDF]

open access: yes, 2017
The purpose of this work is to develop a mathematical model of the dynamics of turning a thin-walled cylindrical shell. This model uses a finite number of degrees of freedom and takes into account the variability of dynamic compliance.
GUSKOV, Mikhail   +6 more
core   +1 more source

A method to solve stability problem of nonlinear cylindrical shell under transversal load

open access: yesVietnam Journal of Mechanics, 1996
The stability problem of the cylindrical shell was studied by many researches, but most of those shells were circular. The present article considers a method to determine the critical load of noncircular cylindrical shell with the open or close section.
Le Ngoc Hong, Le Ngoc Thach
doaj   +1 more source

Chitin‐Chitosan Cryogels for the Reversible Sequestration and Recovery of Heavy Metals From Wastewater

open access: yesAdvanced Materials Technologies, EarlyView.
Chitin‐chitosan cryogels with degrees of N‐acetylation from 12.2% to 71.4% are fabricated by dissolution, coagulation and lyophilization for the sequestration of heavy metals from water. Colorimetry and differential pulse voltammetry showed controlled adsorption and desorption capacities for As5+, Co2+ and Cu2+, making this material attractive for ...
Marta García‐Castrillo   +4 more
wiley   +1 more source

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