Results 131 to 140 of about 12,448 (306)

One‐Shot Multimaterial 3D Printing of a Flexible Spine for a Robotic Fish Prototype

open access: yesAdvanced Intelligent Systems, EarlyView.
A one‐shot multimaterial 3D printing approach enables a monolithic soft robotic fish integrating a compliant spine and rigid vertebrae. Electromagnetic linear actuators drive tendon‐based transmission, producing controlled tail oscillations. Finite element modeling and experiments show strong agreement, while optimized material selection improves ...
Marco Colletta   +3 more
wiley   +1 more source

An Adaptive Brightness Global Digital Image Correlation Method for Deformation Measurement Using Overexposed Images

open access: yesSensors
In deformation measurements, processing overexposed images poses challenges due to the welding process or metal reflection. To track the deformation surface, an Adaptive Brightness Global Digital Image Correlation method is proposed. First, the effective
Chunyuan Gong, Boxing Qian, Qianhai Lu
doaj   +1 more source

Tips and Tricks for Hardware Removal and Allograft Fixation After a Failed Latarjet Procedure

open access: yesArthroscopy Techniques, EarlyView.
Abstract Although relatively rare, recurrent anterior shoulder instability requiring revision surgery after a failed Latarjet procedure can result in complications such as graft malposition, graft osteolysis, broken hardware and/or infection. Revision surgery after a failed Latarjet is a challenge due to a combination of technical factors such as ...
Mikalyn T. DeFoor   +7 more
wiley   +1 more source

The influence of welding parameters and parent plate metallurgical characteristics on solidification of austenitic stainless steel weld metals

open access: yes, 1988
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The present work reports the effect of heat input, cooling rate, parent plate deformation and restraining conditions on the formation and morphology of ...
Hosseinioun, MM
core  

Numerical simulation study on the characteristics and propagation attenuation of vibration signals in freezing pipe fracture

open access: yesDeep Underground Science and Engineering, EarlyView.
This research study employs analysis system (ANSYS) fluid–structure interaction simulations to investigate the generation and attenuation of vibration signals resulting from freezing pipe fractures in artificial ground freezing projects. By evaluating key variables—including frozen soil elastic modulus, brine inlet pressure, and external pipe pressure ...
Yi Cao, Yansen Wang, En Chen, Meng Zhao
wiley   +1 more source

Advances in friction stir welding of steel : Project HILDA

open access: yes, 2014
A microstructure and property evaluation of friction stir welded DH36 6mm plate has been undertaken. The study examined a wide range of process parameters and, from this, a process parameter envelope has been developed and an initial process parameter ...
Cater, Stephen R.   +6 more
core  

Investigation of a ceramic metal matrix composite functional surface layer manufactured using gas tungsten arc welding [PDF]

open access: yes, 2014
Wear resistant surfaces with high toughness and impact resistant properties are to be created to improve the life cycle cost of brake discs for trains. A potential solution to this industrial problem is to use an arc cladding process.
Herbst, Stephan
core  

Design of High‐Performance MnCo1.5Cu0.5O4 Spinel Contact Material with Optimized Electrical Conductivity and Thermal Stability for Solid Oxide Electrolysis Cells by Cu Doping

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cu‐doped spinel MnCo1.5Cu0.5O4 exhibits excellent conductivity and stability as SOC contact material. After 1000‐h aging at 850 °C, the contact layer maintains a 10 mΩ cm2 ASR value, and a single‐cell stack achieves a H2O/CO2 co‐electrolysis power density of 0.52 W cm−2.
Haozhen Li   +7 more
wiley   +1 more source

A thermal elastoplastic multi-layer and multi-pass welding bead layout strategy based on parabolic contour

open access: yesHanjie xuebao
In the multi-layer and multi-pass welding of large-sized thick plates, in addition to controlling the residual stress and deformation generated during the welding process by adjusting welding process parameters, the planning of the filling path is also ...
Changrong CHEN   +4 more
doaj   +1 more source

Microstructure evolution depended on welding tip geometry on AZ31B alloy joints applied ultrasonic spot welding

open access: yesNihon Kikai Gakkai ronbunshu
Our study systematically evaluated the microstructure evolution which depended on the shape of the welding tip. And then, it was revealed that the different microstructure was generated in the slope and flat regions of the welding tip.
Yuichi HIGASHI, Chihiro IWAMOTO
doaj   +1 more source

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