Results 111 to 120 of about 230,711 (275)

Ultrasonic‐Assisted Photocatalytic Conversion of Air to Nitric Acid Under Ambient Conditions

open access: yesAdvanced Science, EarlyView.
Ultrasound‐assisted photocatalytic air oxidation to nitrate enhances soil nitrogen fertilizer dynamics, thereby enabling improved energy conversion efficiency and sustainable agriculture. ABSTRACT The production of nitric acid (HNO3) holds significant importance in the chemical industry, and achieving direct air‐to‐HNO3 conversion with high efficiency ...
Shiming Chen   +11 more
wiley   +1 more source

Productos de tabaco calentado. Concepciones e Implicaciones para la Salud Pública

open access: yesHorizonte Sanitario, 2019
Objetivo: Explorar necesidades de conocimiento y posibles líneas futuras de investigación sobre los Productos de Tabaco Calentado, PTC (Heat-not-burn tobacco products), desde la literatura científica publicada y las fuentes en internet para el público ...
Omar Segura
doaj   +1 more source

Old Main-Sequence Turnoff Photometry in the Small Magellanic Cloud. I. Constraints on the Star Formation History in Different Fields

open access: yes, 2007
We present ground-based B and R-band color-magnitude diagrams (CMDs), reaching the oldest main-sequence turnoffs with good photometric accuracy for twelve fields in the Small Magellanic Cloud (SMC).
Costa, Edgardo   +3 more
core   +2 more sources

Overcoming the Trade‐Off Between Magnetic Coupling and Electrical Insulation in Soft Magnetic Materials via Nanochain Engineering

open access: yesAdvanced Science, EarlyView.
This study employs a nanochain engineering approach combined with an in situ oxidation strategy to fabricate self‐insulating iron‐based magnetic nanochains, addressing the challenge of balancing magnetic coupling and electrical insulation in soft magnetic materials.
Dingrong Zuo   +8 more
wiley   +1 more source

Discovery and Characterization of a Caustic Crossing Microlensing Event in the SMC

open access: yes, 1998
We present photometric observations and analysis of the second microlensing event detected towards the Small Magellanic Cloud (SMC), MACHO Alert 98-SMC-1. This event was detected early enough to allow intensive observation of the lightcurve.
A. C. Becker   +36 more
core   +1 more source

MELEGROS: Monolithic Elephant‐Inspired Gripper with Optical Sensors

open access: yesAdvanced Science, EarlyView.
MELEGROS is a monolithic, elephant‐inspired soft gripper integrating 3D‐printed optical sensors within a pneumatically actuated lattice. Simulation‐guided design decouples tactile and proprioceptive sensing. Characterized through grasping tests, MELEGROS can reach, scoop, and grasp, showcasing a paradigm where fully embedded sensing and continuous ...
Petr Trunin   +4 more
wiley   +1 more source

A REVIEW OF CONTROL METHODS FOR QUADROTOR UAV

open access: yesMağallaẗ Al-kūfaẗ Al-handasiyyaẗ
This study reviews numerous control approaches utilized to address various issues encountered by unmanned aerial vehicles (UAVs). Specifically, focusing on the quadrotor system.
Thamer Al-Husnawy, Ali Al-Ghanimi
doaj   +1 more source

Single‐Cell Transcriptomic Atlases of Camels and Cattle Unravel Molecular Evolution of Digestive and Metabolic Systems

open access: yesAdvanced Science, EarlyView.
We generated multi‐tissue single‐cell transcriptomic atlases of camels and cattle, uncovering conserved and lineage‐specific cellular features across digestive and metabolic systems. Cross‐species comparisons revealed the evolutionary origin of the camel glandular sac and identified novel cell populations linked to physiological specialization ...
Tao Shi   +22 more
wiley   +1 more source

Improved Sliding Mode Control of a Wind Turbine System Based on a Developed Permanent Magnet Synchronous Generator

open access: yesRevue des Énergies Renouvelables
Wind energy conversion systems (WECS) are emerging as among the most reliable alternative energy sources, requiring innovative control strategies to improve performance and reduce operating costs.
Amina Yachir   +6 more
doaj   +1 more source

Creating Cell‐Based Hybrid Noodles for Sustainable and Nutrient‐Balanced Diets via a Serum‐Free and Animal‐Free 3D Co‐Differentiation System

open access: yesAdvanced Science, EarlyView.
This study develops a 3D co‐culture and co‐differentiation system for porcine muscle stem cells (pMuSCs) and mesenchymal stem cells (pMSCs) on edible starch‐based scaffolds. The system simultaneously generates myotubes and adipocytes without using serum or chemical inducers.
Xin Guan   +9 more
wiley   +1 more source

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