Results 81 to 90 of about 232,180 (310)

TRU-FRAME Steel Truss

open access: yes, 2007
After earthquakes, repair and replacement of structural elements is time consuming and expensive. This new truss system contains several diagonal elements designed to absorb seismic energy and yield at prescribed levels. Standard moment frame design requires 100% visual inspection and ultrasonic testing which is eliminated when using the Tru-Frame ...
openaire   +5 more sources

Experimental assessment and retrofit of full-scale models of existing RC frames [PDF]

open access: yes, 2002
PSD tests on two full-scale models of existing non-seismic resisting RC frame structures are described. The testing program covered several aspects, namely assessment of seismic performance of existing frames without and with infill panels ...
Molina, J., Pinto, A. V., Varum, H.
core   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han   +17 more
wiley   +1 more source

Design Optimization of Long-Span Cold-Formed Steel Portal Frames Accounting for Effect of Knee Brace Joint Configuration

open access: yesTechnologies, 2017
The application of cold-formed steel channel sections for portal frames becomes more popular for industrial and residential purposes. Experimental tests showed that such structures with long-span up to 20 m can be achieved when knee brace joints are ...
Thanh Duoc Phan   +3 more
doaj   +1 more source

Velocity statistics in excited granular media

open access: yes, 1999
We present an experimental study of velocity statistics for a partial layer of inelastic colliding beads driven by a vertically oscillating boundary.
A. Kudrolli   +5 more
core   +2 more sources

Multiband Switchable Microwave Absorbing Metamaterials Based on Reconfigurable Kirigami–Origami

open access: yesAdvanced Functional Materials, EarlyView.
A reconfigurable metamaterial featuring tunable microwave‐absorbing and load‐bearing performance is proposed. Stretchable kirigami and bistable origami configurations are integrated as actuating components, and the synergistic deformation mechanisms are systematically analyzed.
Weimin Ding   +7 more
wiley   +1 more source

A 3D Biofabricated Disease Model Mimicking the Brain Extracellular Matrix Suitable to Characterize Intrinsic Neuronal Network Alterations in the Presence of a Breast Tumor Disseminated to the Brain

open access: yesAdvanced Functional Materials, EarlyView.
A 3D disease model is developed using customized hyaluronic‐acid‐based hydrogels supplemented with extracellular matrix (ECM) proteins resembling brain ECM properties. Neurons, astrocytes, and tumor cells are used to mimic the native brain surrounding.
Esra Türker   +16 more
wiley   +1 more source

Seismic Performance Evaluation of High-Strength Steel EBFs, With 304L Steel Links Under Successive Earthquakes

open access: yesShock and Vibration
Successive earthquakes can bring about permanent displacements and a drop in frame resistance in subsequent cycles. Since a method for designing structures under these scenarios has barely been provided in the regulations, this paper examines the seismic
Faezeh Ghadami, Elham Rajabi
doaj   +1 more source

Geometric nonlinear vibration analysis of steel frames with semi-rigid connections and rigid-zones

open access: yesVietnam Journal of Mechanics, 2003
To obtain an accurate insight into the behavior of the most realistic steel frames, joint flexibility should be allowed for in the analysis. So far, most research work is concentrated on the linear and geometric nonlinear static analysis of steel frames
Vu Quoc Anh, Nghiem Manh Hien
doaj   +1 more source

О конструктивных особенностях и опыте эксплуатации литых чугунных рам паллет в составе автоматизированных формовочных линий [PDF]

open access: yes, 2013
Character of loading tested by the pallet's frames in a process of their exploitation is described in the paper. The considerable laboriousness of making of those frames by welding method is marked.
Диордийчук, В. В.   +1 more
core  

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