Results 41 to 50 of about 16,173 (293)
Determination of Mechanical Properties of Concrete by Destructive and Non-Destructive Experimental Methods [PDF]
, 2013 This paper examines the mechanical quality differences of concrete by destructive and non destructive methods according to shape, dimension relationship and cure conditions.
T. U. Ulusoy, Y. Yazicioglu
core
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Advanced Robotics Research, EarlyView.Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source
Durability of Soft Pneumatic Actuators: A Review and Benchmarking Protocol
Advanced Robotics Research, EarlyView.Lack of durability is a key challenge hindering the broad scale adoption of soft pneumatic actuators (SPAs) in automation industries. This review provides a comprehensive overview of existing research on SPA durability, introduces a standardized durability benchmarking protocol to consolidate the testing of SPAs, and outlines promising directions for ...
Dickson Chiu Yu Wong +2 more
wiley +1 more source
Revista IBRACON de Estruturas e MateriaisTo estimate the compressive strength of concrete is necessary in many reinforced concrete structures inspection works. In Brazil, the standard tests for this purpose are: Compressive test in drilled cores, rebound hammer test and ultrasonic test.
E. Pereira, M. H. F. de Medeiros
doaj +1 more source
In situ assessment of the stone conservation state by its water absorbing behaviour : a hands-on methodology [PDF]
, 2016 This paper describes the use of the water absorbing behaviour (WAB) for assessment of the conservation state of stone in situ. A test methodology, consisting of a combination of techniques for in situ measurement of the WAB, was applied in a case study ...
Cnudde, Veerle +2 more
core +1 more source
Rebounds of deformed cavitation bubbles
, 2018 Presented here are experiments clarifying how the deformation of cavitation bubbles affects their rebound. Rebound bubbles carry the remaining energy of a bubble following its initial collapse, which dissipates energy mainly through shock waves, jets ...
Farhat, Mohamed +2 more
core +1 more source
Variations of physico-mechanical, mineralogical and geochemical properties of marble under the influence of weathering [PDF]
, 2019 Purpose. To investigate the physico-mechanical, mineralogical and geochemical properties variations of Igbeti marble, south-western Nigeria under the influence of weathering. Methods. About twenty representative samples were collected at a varying depth
Lawal, A.I., Ogunsola, N.O., Saliu, M.A.
core +1 more source
Epitoanyag - Journal of Silicate Based and Composite Materials, 2013 The rebound hammer test of concrete can provide an alternative to drilled core tests for estimating the in-situ compressive strength of concrete. The variability of concrete strength is recognised during the strength assessment and the design strength of concrete is specified as its characteristic compressive strength by taking the variability of the ...
Katalin Szilágyi +2 more
openaire +1 more source
Corals and Reef‐Dwelling Fish Regulate Carbon Storage and Cycling Processes in Coral Reef Ecosystems
Advanced Science, EarlyView.Coral reefs are biodiversity hotspots, yet their role in carbon storage and cycling remains poorly understood. Using field surveys and modeling in the South China Sea, we reveal the overlooked potential of carbon storage in reef ecosystems and how reef fish, corals, and surface sediment jointly shape reef carbon reservoirs.
Yiting Chen +8 more
wiley +1 more source
Correlation Between Cerchar Abrasivity Index with Rock Properties in Sandstone and Tuff Samples [PDF]
Muhandisī-i manābi̒-i ma̒danīThe abrasivity of materials is of vital importance in selecting an affordable excavation method in the early stages of a tunneling project. The amount of specific energy and the Mode I and Mode II stress intensity factors in the eroded disc is more than ...
M. Hosseini, D. Fakhri, N. Behnam
doaj +1 more source