Results 31 to 40 of about 5,150 (292)

On-Site Manufacturing Method for Pre-Tension U-Type Pre-Stressed Concrete Girders and Analytical Performance Verification of Anchoring Blocks Used for Applying Tension Force

open access: yesApplied Sciences, 2022
Development of U-type pre-stressed girders has been attempted to increase the length of I-type girders in South Korea. However, a length of 30 m or less is common because the self-weight, according to the post-tension method, is large. In this study, the
Dong-Woo Seo   +4 more
doaj   +1 more source

The multi-functional foot in athletic movement: Extraordinary feats by our extraordinary feet [PDF]

open access: yes, 2016
The unique architecture of the foot system provides a sensitive, multi-tensional method of communicating with the surrounding environment. Within the premise of the paper, we discuss three themes: complexity, degeneracy and bio-tensegrity.
Kiely, J, Wilson, J
core   +2 more sources

Double peeling of elastic pre-tensioned tapes

open access: yesFrattura ed Integrità Strutturale, 2014
Peeling is a physical mechanics involved in the detachment of many natural and industrial applications. In this paper, we investigate the double peeling of an endless elastic pre-stressed tape adhering to a flat smooth rigid substrate. Solutions are given in closed form and their stability is discussed.
PUTIGNANO, Carmine   +3 more
openaire   +4 more sources

Multi‐omics and low‐input proteomics profiling reveals dynamic regulation driving pluripotency initiation in early mouse embryos

open access: yesFEBS Open Bio, EarlyView.
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li   +8 more
wiley   +1 more source

Modeling the operational state of suspended roofs with large spans and unique load-bearing elements [PDF]

open access: yesE3S Web of Conferences
The stress-strain state of hanging systems and support contours in the stages of pre-tensioning of cables, as well as in the processes of construction and operation of unique structures, has been studied.
Razzakov Numonkhon   +3 more
doaj   +1 more source

Semi-Precast Segmental Bridge Construction Method: Experimental Investigation on the Shear Transfer in Longitudinal and Transverse Direction

open access: yesApplied Sciences, 2021
Large span concrete bridges with a box-shaped girder are usually built from prefabricated concrete segments or by in-situ casting of the concrete on a scaffolding system. Both technologies have their advantages and drawbacks.
Stephan Johann Fasching   +3 more
doaj   +1 more source

Behaviour of steel straps confined concrete column with lateral pre-tensioning stresses under uniaxial cyclic compression [PDF]

open access: yes, 2015
The behaviour of high strength concrete (HSC) under uniaxial cyclic compression load is extremely important to simulate the seismic effect. It is very helpful to the development of high rise building and future demand of HSC. The main problems of HSC are
Awang, Abdullah Zawawi   +2 more
core  

The stamina of non-gasketed, flanged pipe connections [PDF]

open access: yes, 2000
Stress variations showing flange yielding, flange rotation, effects of joint tightening sequence, identification of the mode of response to loading (static or dynamic) is discussed.
D.H. Nash   +4 more
core   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Interactions between Molten High‐Silicon Electrical Steels and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines how several molten high‐silicon electrical steels interact with both conventional and recycled MgO–C refractories. For this, various immersion experiments are conducted. In addition to infiltration, a number of mechanisms are identified and explained that control the corrosion of the refractory material.
Lukas Neubert   +7 more
wiley   +1 more source

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