Results 121 to 130 of about 98,917 (314)
A Transient Method Using Liquid Crystal for Film Cooling Over a Convex surface
International Journal of Rotating Machinery, 2001 In order to explore the effect of blowing ratio on film cooling over a convex surface, the present study adopts the transient liquid crystal thermography for the film cooling measurement on a straight circular hole configuration.
Ping-Hei Chen +2 more
doaj +1 more source
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Microtextured Surfaces for Turbine Blade Impingement Cooling [PDF]
Gas turbine engine technology is constantly challenged to operate at higher combustor outlet temperatures. In a modern gas turbine engine, these temperatures can exceed the blade and disk material limits by 600 F or more, necessitating both internal and ...
Fryer, Jack
core +1 more source
Curved film cooling admission tube [PDF]
, 1980 Effective film cooling to protect a wall surface from a hot fluid which impinges on or flows along the surface is provided. A film of cooling fluid having increased area is provided by changing the direction of a stream of cooling fluid through an angle ...
Graham, R. W., Papell, S. S.
core +1 more source
Effect of Film Cooling on Turbine Capacity
Journal of Engineering for Gas Turbines and Power, 2009 This paper describes a method that allows the effect of film cooling on the capacity of a turbine to be computed. The model is based on fundamental cooling performance parameters and is applicable to situations in which a mainstream flow is displaced by a partially mixed film cooling layer.
openaire +2 more sources
In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device
Advanced Functional Materials, EarlyView.In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang +19 more
wiley +1 more source
Case Studies in Thermal EngineeringAdvanced aero-engines widely employ lean-burn combustors to comply with strict NOx emission regulations. Lean-burn combustor exit condition is characterized with swirl and hot streak (HS).
Shenghui Zhang +5 more
doaj +1 more source
Three-dimensional turbulent-mixing-length modeling for discrete-hole coolant injection into a crossflow [PDF]
Three dimensional mixing length models of a flow field immediately downstream of coolant injection through a discrete circular hole at a 30 deg angle into a crossflow were derived from the measurements of turbulence intensity.
Papell, S. S., Wang, C. R.
core +1 more source
A First Look at the Performance of Nano-Grooved Heat Pipes
, 2018 Passive thermal spreaders utilizing liquid/vapor phase-change mechanism such as heat pipes, have been widely used in the macro-scale thermal management of electronic devices for many years. Micro-fabrication techniques enabled the fabrication micro-scale
Akkus, Yigit +3 more
core +1 more source
Advanced Functional Materials, EarlyView.A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao +11 more
wiley +1 more source