scholarly journals Modeling continuous source distributions in wave-based virtual acoustics

2020 ◽  
Vol 148 (6) ◽  
pp. 3951-3962
Author(s):  
Stefan Bilbao ◽  
Jens Ahrens
Keyword(s):  
Virtual Acoustics ◽  
Continuous Source

scholarly journals Self-regenerating giant hyaluronan polymer brushes

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Wenbin Wei ◽  
Jessica L. Faubel ◽  
Hemaa Selvakumar ◽  
Daniel T. Kovari ◽  
Joanna Tsao ◽  
...  
Keyword(s):  
Wound Healing ◽  
Polymer Brushes ◽  
Functional Materials ◽  
Polymer Physics ◽  
High Density ◽  
Hyaluronan Synthase ◽  
Dynamic Interface ◽  
Continuous Source

AbstractTailoring interfaces with polymer brushes is a commonly used strategy to create functional materials for numerous applications. Existing methods are limited in brush thickness, the ability to generate high-density brushes of biopolymers, and the potential for regeneration. Here we introduce a scheme to synthesize ultra-thick regenerating hyaluronan polymer brushes using hyaluronan synthase. The platform provides a dynamic interface with tunable brush heights that extend up to 20 microns – two orders of magnitude thicker than standard brushes. The brushes are easily sculpted into micropatterned landscapes by photo-deactivation of the enzyme. Further, they provide a continuous source of megadalton hyaluronan or they can be covalently-stabilized to the surface. Stabilized brushes exhibit superb resistance to biofilms, yet are locally digested by fibroblasts. This brush technology provides opportunities in a range of arenas including regenerating tailorable biointerfaces for implants, wound healing or lubrication as well as fundamental studies of the glycocalyx and polymer physics.

scholarly journals McStas (ii): An overview of components, their use, and advice for user contributions

2021 ◽  
Vol 23 (1) ◽  
pp. 7-27
Author(s):  
Peter Kjær Willendrup ◽  
Kim Lefmann
Keyword(s):  
Review Paper ◽  
Time Of Flight ◽  
Physical Models ◽  
High Quality ◽  
Physical Elements ◽  
Main Component ◽  
Continuous Source ◽  
Component Class

A key element of the success of McStas is the component layer where users and developers alike are contributing to the description of new physical models and features. In McStas, components realise all physical elements of the simulated instrument from source via optics and samples to detector. In this second review paper of the McStas package, we present an overview of the component classes in McStas: sources, monitors, optics, samples, misc, and contrib. Within each component class we give thorough examples of high-quality components, including their algorithms and example use. We present two example instruments, one for a continuous source and one for a time-of-flight source, that together demonstrate the use of the main component classes. Finally, we give tips and instructions that will allow the reader to write good components and elucidate the pathway of contributing new components to McStas.

scholarly journals Continuous Source of Care Among Young Underserved Children: Associated Characteristics and Use of Recommended Parenting Practices

2008 ◽  
Vol 8 (1) ◽  
pp. 36-42 ◽  
Author(s):  
Esther K. Chung ◽  
Leny Mathew ◽  
Kelly F. McCollum ◽  
Irma T. Elo ◽  
Jennifer F. Culhane
Keyword(s):  
Parenting Practices ◽  
Source Of Care ◽  
Continuous Source

A continuous source reinstatement model of true and false recollection.

2021 ◽  
Vol 75 (1) ◽  
pp. 1-18
Author(s):  
Brendan T. Johns ◽  
Michael N. Jones ◽  
Douglas J. K. Mewhort
Keyword(s):  
Continuous Source

Oxygen Pressure Aging. Improved Equipment

1938 ◽  
Vol 11 (4) ◽  
pp. 722-727
Author(s):  
L. M. Freeman
Keyword(s):  
Oxygen Pressure ◽  
Pressure Vessel ◽  
Large Scale ◽  
Oxygen Supply ◽  
Pressure Vessels ◽  
Water Bath ◽  
Aging Test ◽  
Constant Temperature Water Bath ◽  
Temperature Water ◽  
Continuous Source

Abstract Since the introduction of the oxygen pressure-aging test by Bierer and Davis, prevailing standard conditions for the test have been 70° C. (158° F.) and 300 pounds per square inch oxygen pressure. Various types of equipment have been used; usually the equipment has consisted of a pressure vessel immersed in a constant-temperature water bath to which is connected an oxygen supply. In the majority of instances the equipment has been difficult to operate and maintain for several reasons: Immersion of pressure vessels in a water bath made handling difficult. Corrosion was a continuous source of trouble, causing “freezing” of cover bolts and making it difficult to obtain a leakproof oxygen seal between cover and vessel. This caused loss of oxygen. Each time the pressure vessel was removed from the bath it was necessary to disconnect the oxygen supply and make the connection again when the test was started. This also caused loss of oxygen. If more than one pressure vessel was connected to the oxygen supply and a safety released, the entire oxygen supply was exhausted. The original pressure vessels were relatively large. Since the use of age resistors on a large scale, smaller units have been desirable in order to decrease migration of age resistors and eliminate erroneous results. Some of these operation difficulties were outlined by Ingmanson and Kemp, who also emphasized the importance of temperature control to obtain reproducible results. It is the purpose of this paper to describe an improved oxygen pressure installation which avoids some of these difficulties.

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