Results 51 to 60 of about 20,410 (311)
A monolithic and flexible fluoropolymer film microreactor for organic synthesis applications [PDF]
, 2019 A photocurable and viscous fluoropolymer with chemical stability is a highly desirable material for fabrication of microchemical devices. Lack of a reliable fabrication method, however, limits actual applications for organic reactions.
Im, DJ +6 more
core +1 more source
Design and additive manufacturing of novel conformal cooling molds
Materials & Design, 2020 Additive manufacturing (AM) offers high-freedom in the design and processing of components with complex internal structures. In this work, a new injection mold with the self-supporting large cooling channel and tailored porous structures was designed to ...
Chaolin Tan +6 more
doaj +1 more source
A Thermomechanical Analysis of Conformal Cooling Channels in 3D Printed Plastic Injection Molds
Applied Sciences, 2018 Plastic injection molding is a versatile process, and a major part of the present plastic manufacturing industry. The traditional die design is limited to straight (drilled) cooling channels, which don’t impart optimal thermal (or thermomechanical)
Suchana Akter Jahan, Hazim El-Mounayri
doaj +1 more source
Structural Analysis of Molds with Conformal Cooling Channels: A Numerical Study
Engineering Proceedings, 2023 This article presents noteworthy discoveries pertaining to molds, featuring innovative conformal cooling channel designs. The aim of this study is to determine the upper limit of pressure that the components can endure in a real-world injection molding ...
Hugo Miguel Silva +4 more
doaj +1 more source
Predicting the Cosmological Constant from the Causal Entropic Principle [PDF]
, 2007 We compute the expected value of the cosmological constant in our universe from the Causal Entropic Principle. Since observers must obey the laws of thermodynamics and causality, the principle asserts that physical parameters are most likely to be found ...
Bousso, Raphael +4 more
core +4 more sources
Cooling simulation of conformal cooling injection mould insert produced by hybrid manufacturing
Tehnicki vjesnik - Technical Gazette, 2017 Cooling of injection moulds manufactured by machining has limitations because cooling channels are formed by conventional straight holes. With additive manufacturing, the cooling channels can be produced in the shape which is adjusted to the cavity and core surface of injection moulds.
David Homar, Luka Čerče, Janez Kopač
openaire +3 more sources
Advances in Mechanical EngineeringThe primary advantage of metal injection molding (MIM) is that it can be used to mass-produce complex metal products; however, it requires a few secondary processes.
Chen-Yuan Chung, Chuan-Jen Liu
doaj +1 more source
Scientific Reports, 2023 This paper thoroughly investigates material characterization, reliability evaluation, fabrication, and assembly processes of additively manufactured flexible packaging and reconfigurable on-package antenna arrays for next-generation 5G/mmWave wearable ...
Kexin Hu +3 more
doaj +1 more source
Thermotunnel refrigerator with vacuum/insulator tunnel barrier: A theoretical analysis
, 2008 The authors use two insulator layers in thermotunnel refrigerator to modify the shape of the tunneling barrier so that electrons with high kinetic energy pass it with increased probability.
Avto Tavkhelidze +4 more
core +1 more source
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source