Results 31 to 40 of about 19,606 (183)

Physical stability of RNA–lipid nanoparticles under agitation, freeze–thaw and accelerated stability testing

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The choice of excipient is important in enhancing stability of liquid formulations containing lipid nanoparticles (LNPs) used in RNA delivery where the ability to survive unplanned excursions to higher and lower temperature and vibration is an important attribute.
Franz W Laurett Veras, Leah Wright, Robert J Falconer   +2 more
wiley   +1 more source

Equivalent Stiffness Calculation of a Journal Bearing by Analytical Approach for Vibrational Modeling [PDF]

مجله مدل سازی در مهندسی, 2019
More equipment which is used in the mechanical industry has rotating shafts. In the design of the rotating shaft, vibration prediction of the system is very important to reduce and prevent vibrations of the system. One of the important elements that have
Abbas Rahi, Tina Haddad
doaj   +1 more source

River Ice Processes Modelling: A Comprehensive Review

River Research and Applications, EarlyView.
ABSTRACT River ice strongly influences hydrology, hydrodynamics, and ecosystems in cold regions, with an impact on flooding, hydropower generation, navigation, and aquatic habitats. Modeling river ice processes is therefore essential for both scientific understanding and operational management.
Harusha Abeynayake, Heli Yu, Epari Ritesh Patro, Ali Torabi Haghighi   +3 more
wiley   +1 more source

Comparison of a Miniaturized Implantable Two‐Stage Rotodynamic Blood Pump to Equivalent Single‐Stage Concepts

Artificial Organs, EarlyView.
This study aims to evaluate the potential of a multistage pump design to enhance hemocompatibility in left ventricular assist devices. We found that the two‐stage concept offers favorable hemolysis measures compared to single‐stage designs, as the reduction in peak shear stresses outweighs the disadvantage associated with prolonged residence time ...
Sarah Linnemeier, Bente Thamsen, Stefan Maric, Bernhard Semlitsch, Benjamin Torner, Daniel Zimpfer, Marcus Granegger   +6 more
wiley   +1 more source

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

Fisheries Management and Ecology, EarlyView.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos, Eduardo R. Secchi, Joanna Turner, Luis Gustavo Cardoso   +3 more
wiley   +1 more source

Effect of random roundness error on the stability of a hydrodynamic journal bearing system part I: Theoretical study

Advances in Mechanical Engineering, 2019
From a manufacturing viewpoint, the profile of a journal out-of-roundness is random. In order to be closer to the engineering practice, the study presents a dynamic modelling, analysis and calculating method for the hydrodynamic journal bearing system ...
Bing Li, Dejian Zhou, Wubin Xu, Yilei Zhang   +3 more
doaj   +1 more source

Fish welfare in a changing world: New developments and current challenges

Journal of Fish Biology, EarlyView.
Abstract The welfare of non‐human animals is central to ethical discussions on animal use, with increasing attention to fish welfare across research, aquaria, aquaculture, and fisheries. This paper reviews current theoretical approaches to animal welfare and recent advances in defining and assessing fish welfare since the seminal paper by Huntingford ...
Sonia Rey Planellas, João L. Saraiva, Eliane Gonçalves‐de‐Freitas, Pablo Arechavala‐Lopez, Bernice Bovenkerk, Michael Breen, Steven J. Cooke, Martin Føre, Lene Northwood, Lars Helge Stien, Sunil Kadri, Chris Noble, Jonatan Nilsson, Fernando Rodriguez, Cosme Salas, Peter Sandøe, Hans van de Vis   +16 more
wiley   +1 more source

Visualising the lubrication condition in hydrodynamic journal bearings using impedance measurement

Frontiers in Mechanical Engineering
IntroductionThe demand to increase reliability and reduce maintenance costs drives the search for new condition monitoring solutions of machines. Bearings are of special interest in this matter as they are main contributors to machine downtime. Therefore,
Florian Koetz, Florian Schmitt, Eckhard Kirchner, Eduardo Zancul   +3 more
doaj   +1 more source

Numerical investigation of cavitation flow in journal bearing geometry

EPJ Web of Conferences, 2013
The appearance of cavitation is still a problem in technical and industrial applications. Especially in automotive internal combustion engines, hydrodynamic journal bearings are used due to their favourable wearing quality and operating characteristics ...
Stücke P., Schmidt M., Riedel M.
doaj   +1 more source

Numerical Determination of the Frictional Coefficients of a Fluid Film Journal Bearing Considering the Elastohydrodynamic Lubrication and the Asperity Contact Force

Machines, 2022
This paper proposes a numerical method to investigate the frictional characteristics of a fluid film journal bearing considering the elastohydrodynamic lubrication and the asperity contact force.
Gwanghee Hong, Kyobong Kim, Youngjun Park, Gunhee Jang   +3 more
doaj   +1 more source