Results 71 to 80 of about 43,040 (264)

A Novel Integrated Approach: Plant-Mediated Synthesis, in vitro and in silico Evaluation of Silver Nanoparticles for Breast Cancer and Bacterial Therapies

open access: yesInternational Journal of Nanomedicine
Sahar S Alghamdi,1– 3 Haifa A Alhaidal,1 Afrah E Mohammed,4,5 Arwa Alsubait,2,6 Maali D Alshammari,7 Lamis Alsaqer,1 Shahad Saleem Alzahrani,1 Fai Alanazi,1 Layan Basel Al Tuhayni,1 Rizwan Ali,2 Shaden Alharbi,1 Bader Hazazi,2 Mona E AlEnazi,8 Zeyad I ...
Alghamdi SS   +13 more
doaj  

A State‐Adaptive Koopman Control Framework for Real‐Time Deformable Tool Manipulation in Robotic Environmental Swabbing

open access: yesAdvanced Robotics Research, EarlyView.
This work presents a state‐adaptive Koopman linear quadratic regulator framework for real‐time manipulation of a deformable swab tool in robotic environmental sampling. By combining Koopman linearization, tactile sensing, and centroid‐based force regulation, the system maintains stable contact forces and high coverage across flat and inclined surfaces.
Siavash Mahmoudi   +2 more
wiley   +1 more source

Etude et analyse d’une machine frigorifique à absorption-diffusion solaire NH3-H2O-H2

open access: yesRevue des Énergies Renouvelables, 2012
Cet article est consacré à la modélisation mathématique d’un système frigorifique solaire en vue de déterminer ses paramètres énergétiques. Le système en question est à absorption-diffusion fonctionnant avec le couple ammoniac-eau et l’hydrogène comme ...
S. Kherris   +4 more
doaj  

Efficient and Robust Standing Postures of Quadruped Robots

open access: yesAdvanced Robotics Research, EarlyView.
A calibrated static framework estimates load, optimizes torques, and adapts posture so quadruped robots stand efficiently and robustly under external payloads, achieving up to 50% lower torque demand. Inspired by the natural posture adjustments of animals under external loading, this article presents an optimization‐based framework for minimizing joint
Mohamad Kanaan   +5 more
wiley   +1 more source

Situación de riesgo por la presencia de COP: evidencias del problema y escenarios de solución

open access: yesEstudios Sociales, 2012
En este artículo se presentan resultados preliminares del proyecto de investigación titulado “Desarrollo de una metodología que permita llevar a cabo el inventario, caracterización y verificación de sitios potencialmente contaminados con Compuestos ...
Berenice Ochoa Nogales   +4 more
doaj  

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

open access: yesAdvanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao   +8 more
wiley   +1 more source

A Triple‐Nanoparticle System for Controlled Graphene Nanosheet Stacking: Enabling K/Na‐Ion Battery Anodes with Ultra‐Fast Charging Exceeding Petroleum Vehicle Refueling

open access: yesAdvanced Science, EarlyView.
ABSTRACT Large‐ion (K, Na) battery systems mitigate uneven global lithium distribution, while their ability to attain recharge time shorter than refueling would remove the final barrier for secondary batteries to replace petroleum vehicles. However, their large‐ion chemistry makes ultra‐fast charging an even significant challenge.
Shukai Ding   +12 more
wiley   +1 more source

SARM: Simulation of Absorption Refrigeration Machine

open access: yesRevue des Énergies Renouvelables, 2008
The purpose of this work is: - the design of a simulation program for a refrigeration system absorption (single and double stage), working with the binary couple NH3-H2O, called SARM 'Simulation of Absorption Refrigeration Machine', - the creation of a ...
S. Kherris, M. Makhlouf, A. Asnoun
doaj  

Transferable Deep Reinforcement Learning With Edge‐Contour‐Depth Fusion for Autonomous Wireless Capsule Endoscopy Navigation

open access: yesAdvanced Science, EarlyView.
This study presents an anatomical landmark‐guided DRL framework for autonomous wireless capsule endoscopy navigation. Using a lightweight edge‐contour‐depth fusion module, it achieves over 97% coverage across diverse gastric anatomies. To ensure reliability, a two‐stage sim‐to‐real pipeline with an adaptive dynamic programming controller mitigates ...
Haoxuan Wu   +16 more
wiley   +1 more source

Ecojesuit: Collaborating Through Networking and International Relations

open access: yesComillas Journal of International Relations
Unpacking the experience of Ecojesuit as a global network helps in exploring new ways of collaborating across institutions and committed individuals for better participation in global processes.
Peter W. Walpole
doaj   +1 more source

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