Results 51 to 60 of about 1,515,151 (301)

The influence of semi-rigid connections on the performance of steel framed structures in fire. [PDF]

open access: yes, 1997
Observation of fire damaged structures and recent fire tests at the Cardington LBTF have suggested that even nominally `simple' connections are capable of providing significant restraint at elevated-temperatures. As most frames
Leston-Jones, L.C.   +1 more
core  

Advancing Age Modulates Associations Between Cognitive Impairment and Brain Volumes in Early MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Cognitive impairment is common in multiple sclerosis (MS), but manifestations following the first demyelinating event are relatively unexplored. We investigated cross‐sectional associations between magnetic resonance imaging (MRI)–derived brain volumes and the presence of cognitive impairment outcomes five years after the first ...
Piriyankan Ananthavarathan   +14 more
wiley   +1 more source

Development and Performance Evaluation of a Novel Disc-Buckle Steel Scaffold Joint

open access: yesBuildings
The disc-buckle scaffold system demonstrates significant advantages in prefabricated construction applications, particularly in terms of installation efficiency, load-bearing capacity, and standardization.
Si Wei   +5 more
doaj   +1 more source

Analysis of supported steel frames with rigid and semi-rigid connections

open access: yesGrađevinar, 2017
The use of a bracing system for controlling lateral displacement of frames, especially in case of semi-rigid connections, is analysed in the paper. The results indicate that various effects on the stiffness and ductility parameters of structures can be ...
Hossein Khosravi   +2 more
doaj   +1 more source

Behaviour of semi-rigid composite connections for steel framed buildings [PDF]

open access: yes, 2009
During propped construction the steel-concrete composite action resists dead as well as imposed loads. Conversely, the steel section alone resists the floor self-weight in unpropped beams.
Muniasamy, D.
core  

Association Between Motor Pathway Damage and Motor Deficit in Upper and Lower Limb in People With MS

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Corticospinal tract damage is common in people with MS, but the degree of clinical symptoms varies. We hypothesize that corticospinal tract lesions are more extensive and severe in people with MS with motor impairments in both upper and lower limbs.
Mathilde Liffran   +13 more
wiley   +1 more source

Development of Moment-rotation Curves of Angle Steel Tower K-joints

open access: yes工程科学与技术, 2013
:In order to investigate the moment-rotation relation of the UHV angle steel tower K-joints, five full-scale tests were conducted. The results showed that the joints of this kind will reach their ultimate moment because of the shear break of bolts that ...
李正良, 赵楠, 尤军, 刘红军
doaj  

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Technical Note: Semi-rigid chambers for methane gas flux measurements on tree stems [PDF]

open access: yesBiogeosciences, 2016
There is increasing interest in the measurement of methane (CH4) emissions from tree stems in a wide range of ecosystems so as to determine how they contribute to the total ecosystem flux. To date, tree CH4 fluxes are commonly measured using rigid closed
A. Siegenthaler   +4 more
doaj   +1 more source

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