Results 51 to 60 of about 2,221 (181)

Mechanobiology in Stem Cell‐Based Bioprinting

Cell Proliferation, EarlyView.
Mechanobiology in stem cell‐based bioprinting is an emerging field that bridges the mechanical conditions of the bioprinting process with the regulation of stem cell behaviour for engineering living tissues. Stresses encountered during bioprinting, together with the mechanical properties of bioinks, play a critical role in regulating stem cell ...
Supeng Ding, Tiankun Liu, Rui Yao
wiley   +1 more source

NONLINEAR MODELING AND CONTROL DESIGN OF ELECTRO-HYDROSTATIC ACTUATOR

Proceedings of the JFPS International Symposium on Fluid Power, 2008
In this paper, a typical architecture of Electro-Hydrostatic Actuator (EHA) is described and modeled by the block diagram based on mathematic equations, which is a nonlinear accuracy model. The single PID, cascade PID and state feedback controllers are respectively designed and applied to this model for comparison analysis that focused on system ...
Rongjie KANG, Jean Charles MARE, Zongxia JIAO   +2 more
openaire   +2 more sources

Numerical Modeling of Hydrogen‐Assisted Cracking With Phase Field Regularized Cohesive Zone Model and Penalty‐Based Moving Hydrogen Boundary Condition

Fatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT The degradation of metallic materials due to hydrogen embrittlement (HE) poses critical challenges for structural reliability. Phase‐field models offer an energy‐based approach that does not require predefined crack paths and automatically determines crack initiation, growth, and coalescence.
Shaymaa Merheb, Dmytro Vasiukov, Modesar Shakoor, Hugo Heyraud, Daniella Guedes Sales, Philippe Rohart, Samir Assaf, Salim Chaki   +7 more
wiley   +1 more source

Design and Evaluation of a Torque-Controlled Ankle Exoskeleton Using the Small-Scale Hydrostatic Actuator: miniHydrA

Actuators
A small-scale electro-hydrostatic actuator, termed miniHydrA, was developed based on biomechanical requirements for gait and integrated into an ankle exoskeleton. The key advantage of this actuator concept lies in its compact size and the low mass of its
Kyrian Staman, Herman van der Kooij
doaj   +1 more source

Recent advances of emergent extraction technologies to enhance bioactive compounds extraction of microalgae—An overview towards application in cosmetics

International Journal of Cosmetic Science, EarlyView.
Microalgae extracts show immense potential in cosmetics for their bioactivities; emerging extraction techniques enhance bioactive compound yield from microalgae. Abstract Microalgae have attracted significant interest in numerous sectors, particularly in the cosmetic industries, owing to their rich composition of bioactive compounds. This paper aims to
Alireza Mousakhani Ganjeh, Lucília da P. da Silva, Carlos A. Pinto, Rosário Martins, Alexandra P. Marques, Jorge A. Saraiva   +5 more
wiley   +1 more source

Harmonic Control for Variable-Frequency Aviation Power System Based on Three-Level NPC Converter

IEEE Access, 2020
At present, three-phase 115V/360-800Hz variable frequency AC power system is mostly used in the main power system of More-Electric Aircraft. With the increase of EMA (Electro-Mechanical Actuator), EHA (Electro-Hydrostatic Actuator), DC/DC power supply ...
Zhenyang Hao, Xinying Wang, Xin Cao
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

Experimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Acute hot‐water immersion augments the diastolic blood pressure nocturnal dip in healthy adults

Experimental Physiology, EarlyView.
Abstract Hot‐water immersion (HWI) has been shown to reduce 24 h ambulatory systolic blood pressure in hypertensive adults and might represent a preventative strategy for maintaining cardiovascular health in normotensive adults. The purpose of this study was to determine the time course of post‐HWI hypotension and test the hypothesis that a single HWI ...
Samuel F. Leaney, Ferrida A. F. Ponce, Tomos F. Owen, Benjamin L. Harvey, Oliver N. Davies‐Wilson, Oliver M. A. Brand, Geoff B. Coombs, Jonathan P. Moore, Samuel J. Oliver   +8 more
wiley   +1 more source

Hydrostatic Asymmetric Journal Gas Barings for Seismic ACROSS Transmitters

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2007
The ACROSS (Accurately Controlled Routinely Operated Signal System) is used to detect subtle changes in the physical state of Earth's structure. The signal is sinusoidal elastic waves generated by the rotation of a rotor with eccentric mass set in ...
Tomohiko ISE, Takao TORII, Nobuyoshi MORITA, Shinichi TOGO, Makoto OKANO   +4 more
doaj   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

Advanced Functional Materials, Volume 36, Issue 24, 23 March 2026.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken, K. Ashoke Raman, Alexander Bauer, Violeta Karyofylli, Eva Jodat, André Karl, Rüdiger‐A. Eichel   +6 more
wiley   +1 more source