Results 41 to 50 of about 88,392 (279)

Calculation of the force and kinematic parameters of the transfer mechanism based on a twisted arm chain

open access: yesAdvanced Engineering Research, 2022
Introduction. The paper presents a brief kinematic analysis, as well as the application of D'Alembert's principle to finding the relationship between the force parameters in the transmission mechanism of a robotic manipulator constructed from a twisted ...
I. R. Bondarenko   +3 more
doaj   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel   +3 more
wiley   +1 more source

Neural Network Direct Control with Online Learning for Shape Memory Alloy Manipulators

open access: yesSensors, 2019
New actuators and materials are constantly incorporated into industrial processes, and additional challenges are posed by their complex behavior. Nonlinear hysteresis is commonly found in shape memory alloys, and the inclusion of a suitable hysteresis ...
Alfonso Gómez-Espinosa   +4 more
doaj   +1 more source

Intraoperative Collection of Ascitic Fluid With Intra‐ or Postoperative Reinfusion in Ovarian Cancer: Safety and Feasibility of a Roller Pumping Method

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Patients with ovarian cancer often present with massive ascites, leading to significant protein loss during surgical procedures. Although cell‐free concentrated ascites reinfusion therapy (CART) is used in palliative settings to mitigate protein loss, its application in intraoperative settings remains unexplored.
Yutaka Yoneoka   +7 more
wiley   +1 more source

Dynamic Modeling and Simulation of a Rotating Single Link Flexible Robotic Manipulator Subject to Quick Stops [PDF]

open access: yes, 2014
Single link robotic manipulators are extensively used in industry and research operations. The main design requirement of such manipulators is to minimize link dynamic deflection and its active end vibrations, and obtain high position accuracy during its
Dupac, Mihai, Noroozi, Siamak
core   +1 more source

Avaliação das condições microbiológicas em unidades de alimentação e nutrição Evaluation of microbiological conditions in food service stablishiments

open access: yesCiência e Agrotecnologia, 2003
O presente trabalho é referente a 17 visitas técnicas realizadas em 12 unidades de alimentação e nutrição, cujas produções variam de 1.000 a 4.000 refeições/dia.
Nélio José de Andrade   +2 more
doaj   +1 more source

Velocity Estimation of Robot Manipulators: An Experimental Comparison

open access: yesIEEE Open Journal of Control Systems, 2023
Accurate velocity information is often essential to the control of robot manipulators, especially for precise tracking of fast trajectories. However, joint velocities are rarely directly measured and instead estimated to save costs. While many approaches
S. B. Liu   +2 more
doaj   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

A design oriented study for 3R Orthogonal Manipulators With Geometric Simplifications [PDF]

open access: yes, 2007
This paper proposes a method to calculate the largest Regular Dextrous Workspace (RDW) of some types of three-revolute orthogonal manipulators that have at least one of their DH parameters equal to zero.
Chablat, Damien   +2 more
core   +2 more sources

Pose, posture, formation and contortion in kinematic systems [PDF]

open access: yes, 2002
The concepts of pose, posture, formation and contortion are defined for serial, parallel and hybrid kinematic systems. Workspace and jointspace structure is examined in terms of these concepts.
CM Gosselin   +9 more
core   +1 more source

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