Polymer Colloids as Models for Studying Interaction Forces in Concentrated Dispersions

1990 ◽  
pp. 393-411
Author(s):  
Th. F. Tadros
Keyword(s):  
Polymer Colloids ◽  
Interaction Forces ◽  
Concentrated Dispersions

Experimental investigations of the interaction forces in concentrated dispersions

1993 ◽  
Vol 77 (1) ◽  
pp. 55-63 ◽  
Author(s):  
B.A. de L. Costello ◽  
I.T. Kim ◽  
P.F. Luckham ◽  
Th.F. Tadros
Keyword(s):  
Experimental Investigations ◽  
Interaction Forces ◽  
Concentrated Dispersions

scholarly journals Design and Development of an Upper Limb Rehabilitative Robot with Dual Functionality

Micromachines ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 870
Author(s):  
Md Rasedul Islam ◽  
Md Assad-Uz-Zaman ◽  
Brahim Brahmi ◽  
Yassine Bouteraa ◽  
Inga Wang ◽  
...  
Keyword(s):  
Upper Limb ◽  
Research Work ◽  
Human Robot Interaction ◽  
Control Technique ◽  
Upper Arm ◽  
Interaction Forces ◽  
End Effector ◽  
Upper Limb Rehabilitation ◽  
End Point ◽  
Limb Rehabilitation

The design of an upper limb rehabilitation robot for post-stroke patients is considered a benchmark problem regarding improving functionality and ensuring better human–robot interaction (HRI). Existing upper limb robots perform either joint-based exercises (exoskeleton-type functionality) or end-point exercises (end-effector-type functionality). Patients may need both kinds of exercises, depending on the type, level, and degree of impairments. This work focused on designing and developing a seven-degrees-of-freedom (DoFs) upper-limb rehabilitation exoskeleton called ‘u-Rob’ that functions as both exoskeleton and end-effector types device. Furthermore, HRI can be improved by monitoring the interaction forces between the robot and the wearer. Existing upper limb robots lack the ability to monitor interaction forces during passive rehabilitation exercises; measuring upper arm forces is also absent in the existing devices. This research work aimed to develop an innovative sensorized upper arm cuff to measure the wearer’s interaction forces in the upper arm. A PID control technique was implemented for both joint-based and end-point exercises. The experimental results validated both types of functionality of the developed robot.

scholarly journals Doxorubicin Encapsulation in Carbon Nanotubes Having Haeckelite or Stone–Wales Defects as Drug Carriers: A Molecular Dynamics Approach

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1586
Author(s):  
Leonor Contreras ◽  
Ignacio Villarroel ◽  
Camila Torres ◽  
Roberto Rozas
Keyword(s):  
Carbon Nanotubes ◽  
Molecular Dynamics ◽  
Drug Delivery Systems ◽  
Nitrogen Doping ◽  
Drug Carriers ◽  
Acidic Ph ◽  
Free Energies ◽  
Interaction Forces ◽  
Chiral Nanotubes ◽  
Binding Free Energies

Doxorubicin (DOX), a recognized anticancer drug, forms stable associations with carbon nanotubes (CNTs). CNTs when properly functionalized have the ability to anchor directly in cancerous tumors where the release of the drug occurs thanks to the tumor slightly acidic pH. Herein, we study the armchair and zigzag CNTs with Stone–Wales (SW) defects to rank their ability to encapsulate DOX by determining the DOX-CNT binding free energies using the MM/PBSA and MM/GBSA methods implemented in AMBER16. We investigate also the chiral CNTs with haeckelite defects. Each haeckelite defect consists of a pair of square and octagonal rings. The armchair and zigzag CNT with SW defects and chiral nanotubes with haeckelite defects predict DOX-CNT interactions that depend on the length of the nanotube, the number of present defects and nitrogen doping. Chiral nanotubes having two haeckelite defects reveal a clear dependence on the nitrogen content with DOX-CNT interaction forces decreasing in the order 0N > 4N > 8N. These results contribute to a further understanding of drug-nanotube interactions and to the design of new drug delivery systems based on CNTs.

scholarly journals Visual Representation of Sound Sources and Interaction Forces in a Teleoperation Interface for a Mobile Robot

2015 ◽  
Vol 4 (2) ◽  
pp. 1 ◽  
Author(s):  
Aurélien Reveleau ◽  
François Ferland ◽  
Mathieu Labbé ◽  
Dominic Létourneau ◽  
François Michaud
Keyword(s):  
Mobile Robot ◽  
Visual Representation ◽  
Sound Sources ◽  
Interaction Forces

Estimating needle-tissue interaction forces for hollow needles using fiber Bragg grating sensors

2016 ◽  
Author(s):  
Saurabh Kumar ◽  
V. Shrikanth ◽  
Bharadwaj Amrutur ◽  
Sundarrajan Asokan ◽  
M. S. Bobji
Keyword(s):  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Interaction Forces ◽  
Tissue Interaction ◽  
Fiber Bragg Grating Sensors
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