Results 41 to 50 of about 20,104 (213)

Radiative Cooling by Green(er) Solvents‐Upcycled Polyvinyl Chloride From Drug Blisters Waste

open access: yesAdvanced Optical Materials, EarlyView.
This study explores upcycling poly(vinyl chloride) (PVC) from used pharmaceutical blisters into sustainable radiative cooling materials. Using solvent separation and membrane fabrication, PVC was converted into white membranes paired with aluminum foil.
Andrea Lanfranchi   +2 more
wiley   +1 more source

Static and free vibration analysis of thin plates of the curved edges by the Boundary Element Method considering an alternative formulation of boundary conditions

open access: yesEngineering Transactions, 2016
A static and dynamic analysis of Kirchhoff plates is presented in this paper. The proposed approach avoids Kirchhoff forces at the plate corners and equivalent shear forces at a plate boundary. Two unknown variables are considered at the boundary element
Michał Jan GUMINIAK
doaj   +1 more source

Hard‐Magnetic Soft Millirobots in Underactuated Systems

open access: yesAdvanced Robotics Research, EarlyView.
This review provides a comprehensive overview of hard‐magnetic soft millirobots in underactuated systems. It examines key advances in structural design, physics‐informed modeling, and control strategies, while highlighting the interplay among these domains.
Qiong Wang   +4 more
wiley   +1 more source

Numerical assessment of shear force redistribution in beam-slab systems due to incompatible kinematic assumptions [PDF]

open access: yesGrađevinski Materijali i Konstrukcije
In finite element analysis, shear force in a Timoshenko beam can be grossly underestimated if the beam is coupled with a thin (Kirchhoff) plate in the finite element mesh.
Stupar Branislav   +2 more
doaj   +1 more source

The Hellan-Herrmann-Johnson Method for Nonlinear Shells

open access: yes, 2019
In this paper we derive a new finite element method for nonlinear shells. The Hellan-Herrmann-Johnson (HHJ) method is a mixed finite element method for fourth order Kirchhoff plates.
Neunteufel, Michael, Schöberl, Joachim
core   +1 more source

Low-complexity computation of plate eigenmodes with Vekua approximations and the Method of Particular Solutions [PDF]

open access: yes, 2013
This paper extends the Method of Particular Solutions (MPS) to the computation of eigenfrequencies and eigenmodes of plates. Specific approximation schemes are developed, with plane waves (MPS-PW) or Fourier-Bessel functions (MPS-FB). This framework also
Chardon, Gilles, Daudet, Laurent
core   +5 more sources

A Review on Sensor Technologies, Control Approaches, and Emerging Challenges in Soft Robotics

open access: yesAdvanced Robotics Research, EarlyView.
This review provides an introspective of sensors and controllers in soft robotics. Initially describing the current sensing methods, then moving on to the control methods utilized, and finally ending with challenges and future directions in soft robotics focusing on the material innovations, sensor fusion, and embedded intelligence for sensors and ...
Ean Lovett   +5 more
wiley   +1 more source

Variational iteration method for investigating flexible porous functionally graded size-dependent oblique plates [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
A model of flexible oblique Kirchhoff plates made of porous functional-gradient materials is derived. Nonlinearity is accounted for by the theory of T. von Karman.
Kalutsky, Leonid A.   +3 more
doaj   +1 more source

APPLICATION OF DISCONTINUOUS SOLUTIONS IN BOUNDARY ELEMENT METHOD FOR THE BENDING PROBLEMS OF KIRCHHOFF PLATES WITH AN ARBITRARY CONTOUR

open access: yesJournal of Engineering Science (Chişinău), 2023
The discontinuous solutions represent a new direction for the indirect Boundary Element Method (BEM) in the indirect formulation. Discontinuous solutions represent those functions, which when crossing certain lines, the transverse deflection ...
GALBINEAN, Sergiu
doaj   +1 more source

Surface Plasmon Enhanced Photoluminescence of Carbon Dots Formed In Situ on Silver Gratings

open access: yesAdvanced Science, EarlyView.
Carbon emitters formed in situ on a silver grating via plasmonic catalysis yield enhanced spontaneous emission by preferential radiative decay into surface plasmons. Enhancement manifests as emission exhibiting characteristics of coherence (polarization, directionality), and accelerated lifetimes of ∼30 ps, yielding Purcell factors of ∼70.
Maryam Sadat Amiri Naeini   +5 more
wiley   +1 more source

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