Results 91 to 100 of about 2,686,100 (299)

When the going gets rough – studying the effect of surface roughness on the adhesive abilities of tree frogs [PDF]

open access: yes, 2016
Tree frogs need to adhere to surfaces of various roughnesses in their natural habitats; these include bark, leaves and rocks. Rough surfaces can alter the effectiveness of their toe pads, due to factors such as a change of real contact area and abrasion
Barnes, W. Jon P.   +4 more
core   +2 more sources

Hybrid Auxetic Architectures: Integrating Curvature‐Driven Design for Enhanced Mechanical Tunability and Structural Performance

open access: yesAdvanced Engineering Materials, EarlyView.
Curvature‐tuned auxetic lattices are designed, fabricated, and mechanically characterized to reveal how geometric curvature governs stretchability, stress redistribution, and Poisson's ratio evolution. Photoelastic experiments visualize stress pathways, while hyperelastic simulations quantify deformation mechanics.
Shuvodeep De   +3 more
wiley   +1 more source

ANALYSIS OF CORNER BEAM-COLUMN JUNCTION WITH INCLUSION OF THE EFFECT OF CONSTRUCTION JOINTS

open access: yesJournal of Engineering, 2007
This paper describes a comparison between beam-column junctions with and without construction joint, also, a parametric study deals with construction joint is presented by taking various conditions of the junction. These include the various positions of
Husain M. Husain, Dina M. Hamza
doaj   +1 more source

The role of different sliding resistances in limit analysis of hemispherical masonry domes

open access: yesFracture and Structural Integrity, 2020
A limit analysis method for masonry domes composed of interlocking blocks with non-isotropic sliding resistance is under development. This paper reports the first two steps of that work.
Elham Mousavian, Claudia Casapulla
doaj   +1 more source

Flammable gas tank exhauster interlock (LFGTEI) computer software design description [PDF]

open access: yes, 1997
Modicon Compact Programmable Logic Controller (PLC). The device configuration integrates the isolation and current- carrying capacities of mechanical relays with the logic and programming sophistication of the PLC. This revised document provides descriptions of components and tasks involved in the PLC system for controlling and monitoring the FGTEI ...
Smith, S.O.   +1 more
openaire   +2 more sources

Automatic instantiation of abstract tests on specific configurations for large critical control systems

open access: yes, 2013
Computer-based control systems have grown in size, complexity, distribution and criticality. In this paper a methodology is presented to perform an abstract testing of such large control systems in an efficient way: an abstract test is specified directly
Flammini, Francesco   +2 more
core  

Experience using Coloured Petri Nets to Model Railway Interlocking Tables

open access: yes, 2014
Interlocking tables are the functional specification defining the routes on which the passage of the train is allowed. Associated with the route, the states and actions of all related signalling equipment are also specified.
Vanit-Anunchai, Somsak
core   +2 more sources

Introduction : Virtually perfect security (transcript of discussion) [PDF]

open access: yes, 2014
“Virtually Perfect Security” is an attempt to tie together three slightly different interlocking strands. The first is the fact that although we talk about security as if it were some sort of metaphysical property (so that a system is either secure or ...
Christianson, B.
core   +1 more source

Can Ti‐Based MXenes Serve as Solid Lubricants for Brake Applications? A Tribological Study

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the first implementation of Ti‐based MXenes materials in brake pad friction composite material. The resulting composite material exhibits a 48% reduction in the wear rate; alongside significant improvements are observed for thermal and mechanical properties.
Eslam Mahmoud   +7 more
wiley   +1 more source

Triple Helix Model in Developing Technological Innovation: The Case of Computer Based Interlocking

open access: yesAsian Journal of Technology Management, 2013
Computer Based Interlocking (CBI) is the most important part of the electric railway signalingsystem which serves as the “brain” that controls the operation of electrical signaling system thatreplaces the role of the electromagnetic relay which has ...
Erry Ricardo Nurzal, Marhaindro Waluyo
doaj   +2 more sources

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