Results 91 to 100 of about 8,150 (236)

A Cable‐Driven Parallel Wire Robot for Probe Positioning and Tissue Palpation on Curved Phantoms

Advanced Intelligent Systems, EarlyView.
A wearable cable‐driven parallel robot is introduced for autonomous ultrasound probe positioning and soft tissue palpation on curved surfaces. By combining visual feedback with tension‐optimized control, the system achieves millimeter‐scale positioning accuracy while enforcing safety force constraints.
Christina Patterson, Dinesh K. Patel, Carmel Majidi   +2 more
wiley   +1 more source

Design of the testing procedure for investigation of Eryx conicus dermal armour characteristics

Acta Polytechnica CTU Proceedings
The aim of this work is to develop an experimental method suitable for the mechanical testing of highly non-standard biological samples such as snake skin with osteoderms.
Blanka Žaloudková, Petr Koudelka, Petra Frýdlová, Mykhailo Drozdenko, Jan Šleichrt, Daniel Kytýř   +5 more
doaj   +1 more source

Cooling Holes in Polymer Spur Gears: A Critical Analysis of Heat Dissipation Benefits and Mesh Stiffness Penalties

Journal of Applied Polymer Science, EarlyView.
Cooling holes provide a simple passive cooling strategy for polymer spur gears, reducing maximum operating temperature by up to 9.39% while introducing a measurable gear mesh stiffness penalty. A validated response‐surface model reveals how hole size and location govern this thermal–mechanical trade‐off, enabling design optimization for thermally and ...
Abderrahim Baccar, Ahmed Samet, Ahmed Hammami, Nuno Dourado, Ali Akrout, Mohamed Haddar   +5 more
wiley   +1 more source

Rheological Properties of Carboxymethyl Cellulose Solutions and Gels: An Overview

Journal of Applied Polymer Science, EarlyView.
The rheology of carboxymethyl cellulose is determined by the balance between electrostatic interactions, chain entanglements and association of unsubstituted cellulose‐like domains. The degree of substitution, substitution pattern, added salt concentration and pH determine whether solutions behave as viscoelastic liquids or weak gels.
Carlos G. Lopez
wiley   +1 more source

A discrete element model for rock pressure sensitivity and stress-driven contact stiffness evolution

Scientific Reports
With the rapid development of deep buried traffic tunnels, underground space utilization, and global energy resource extraction, the scale of deep underground engineering continues to expand.
Cong Wang, Yong Zhao, Yongquan Zhu
doaj   +1 more source

Pseudo-dynamic bearing capacity of strip foundations on rock masses considering the Rayleigh surface waves

Soils and Foundations
Evaluation of seismic bearing capacity is to be vital for design of strip foundations in earthquake areas. Combining the upper bound theorem of limit analysis, the discrete technique is successfully extended in this study to investigate the seismic ...
Dianchun Du, Weiming Gong, Daniel Dias
doaj   +1 more source

Effects of Strain Rate and Temperature on Tangent Modulus Method

Effects of Strain Rate and Temperature on Tangent Modulus Method
KRMS 2008: Korean Rock Mechanics Symposium on International Cooperation and Rock Engineering for Development of Mineral Resources and Infrastructures. 22-23 October 2008. Chonnam National University, Gwangju, Korea.
openaire  

Phosphorylation of Milkweed Fibers With a Phosphate Ester: Effect on Fiber Properties and Optimization of Reaction Conditions

Journal of Applied Polymer Science, EarlyView.
The phosphorylation of milkweed fibers using the phosphate ester/urea system was optimized. The impact of reaction temperature, duration, and phosphate ester ratio on the efficiency of phosphorylation was investigated using the design of experiments approach.
Ahmed Azrrar, François Brouillette, Zahahe Oulame Mouandhoime, Saïd Elkoun, Mathieu Robert   +4 more
wiley   +1 more source

Synergistic Integration of LiCF3SO3 in PVdF‐HFP/PVAc Polymer Blends: Multifaceted Analysis From Microstructure to Electrochemical Properties

Journal of Applied Polymer Science, EarlyView.
Solid polymer electrolyte films of PVdF‐HFP/PVAc blend with LiCF3SO3 were prepared by solution casting. XRD, FESEM, and FTIR confirmed reduced crystallinity and enhanced amorphous nature. Ionic conductivity reached 3.46 × 10−4 S cm−1 for optimized SP4.
B. Praveen Kumar, P. Ajay Kumar, P. Missak Swarup Raju   +2 more
wiley   +1 more source

Tangent modulus method : An original method to measure in-situ rock stress

Tangent modulus method : An original method to measure in-situ rock stress
This paper proposed Tangent Modulus Method (TMM) which is an improved oriented core method to determine in-situ rock stresses. In this approach, the cylindrical specimens prepared along different directions from thick core samples were uniaxially compressed twice to a given stress level.
openaire