Results 101 to 110 of about 357,395 (371)
Laminar Flow and Backrind Formation in Molding of Viscoelastic Silicone Rubber [PDF]
arXiv, 2019 When a thermoset polymer is cured at elevated temperature in a closed mold, thermal expansion can produce flaws in the finished product. Those flaws occur when rising internal pressure pushes the mold open and cured polymer flows out through gaps at the parting lines. Known as backrind, such defects are particularly common in compression molding, where
arxiv
Evolution of the Ubiquitin-Activating Enzyme Uba1 (E1) [PDF]
, 2017 Ubiquitin tags diseased proteins and initiates an enzyme conjugation cascade, which has three stages. The first-stage enzyme Uba1 (E1) has evolved only modestly from slime mold to humans, and is > 14 times larger than Ub. Here we use critical point thermodynamic scaling theory to connect Uba1 (E1) evolution from yeast and slime mold to fruit flies and ...
arxiv +1 more source
FEBS Letters, EarlyView.In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley +1 more source
Hydrodynamic and Solid Mechanics Analysis of Capillary Force-Induced Mold Deformation in Sub-10 nm UV Nanoimprint Lithography [PDF]
arXiv, 2018 A model has been developed to study the dynamic filling process and to investigate the capillary force-induced deformation of nanostructures on the imprint mold during ultraviolet nanoimprint lithography (UV-NIL) down to sub-10 nm resolution. The dynamic behavior of resist filling with varied physical parameters was investigated by a hydrodynamic model.
arxiv
Clinical Infectious Diseases, 2015 BACKGROUND Computed tomography pulmonary angiography (CTPA) may improve the diagnostic capabilities of CT imaging for invasive mold disease, but its performance relative to other signs (ie, halo sign, hypodense sign, pleural effusion, reversed halo sign)
M. Stanzani +7 more
semanticscholar +1 more source
Recent advances in nanostructured biomimetic dry adhesives
Frontiers in Bioengineering and Biotechnology, 2013 The relatively large size of the gecko and its ability to climb a multitude of structures with ease has often been cited as the inspiration upon which the field of dry adhesives is based.
Andras ePattantyus-Abraham +2 more
doaj +1 more source
Social context prevents heat hormetic effects against mutagens during fish development
FEBS Letters, EarlyView.This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere +5 more
wiley +1 more source
A Compact Cryogenic Thermal Source for Detector Array Characterization [PDF]
, 2017 We describe the design, fabrication, and validation of a cryogenically-compatible quasioptical thermal source designed to be used for characterization of detector arrays. The source is constructed using a graphite-loaded epoxy mixture that is molded into a tiled pyramidal structure.
arxiv +1 more source
miRNA‐29 regulates epidermal and mesenchymal functions in skin repair
FEBS Letters, EarlyView.miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan +10 more
wiley +1 more source
On modeling Maze solving ability of slime mold via a hyperbolic model of chemotaxis [PDF]
arXiv, 2016 Many studies have shown that Physarum polycephalum slime mold is able to find the shortest path in a maze. In this paper we study this behavior in a network, using a hyperbolic model of chemotaxis. Suitable transmission and boundary conditions at each node are considered to mimic the behavior of such an organism in the feeding process.
arxiv