Results 81 to 90 of about 461,778 (311)
Effect of a System Air Conditioner on Local Air Quality in a Four-bed Ward
Aerosol and Air Quality Research, 2020 In a ward where many patients are hospitalized, effective ventilation is important because airborne viruses may cause secondary infection. This study investigates the changes in the air quality in a four-bed ward according to the use of a ventilation ...
Jungsuk Lee +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley +1 more source
To reduce the environmental impact of airborne transportation, the aeronautic community investigates smaller aircraft with short-range operations (such as training aircraft, air taxis, or commuter aircraft) as technology incubators.
Musavir Bashir +2 more
core +1 more source
Making vision into power : Britain's acquisition of the world's first radar-based integrated air defence system 1935 - 1941 [PDF]
, 2008 This thesis represents the first application of a current conceptual model of defence acquisition to analyse the historical process, the 1935 - 1941 British acquisition of an integrated air defence system pivoted upon the innovative technology of radar ...
Judkins, Phillip Edward
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Performance of Desiccant Enhanced Evaporative Cooling System Based on High-Low Control
Proceedings, 2018 Desiccant enhanced evaporative cooling system is a sustainable air-conditioning (A/C) system which deals the latent load and sensible load separately by a dehumidifier and an evaporative cooler.
Yi Chen, Huaxia Yan, Yimo Luo
doaj +1 more source
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
BMC Pulmonary MedicineBackground The management of intractable secondary pneumothorax poses a considerable challenge as it is often not indicated for surgery owing to the presence of underlying disease and poor general condition.
Shunsuke Ueno +16 more
doaj +1 more source
Reduction of air flow rate for pulse-detonation-turbine-engine operation by water-droplet injection
Journal of Thermal Science and Technology, 2016 In this study, experiments on a pulse detonation turbine engine (PDTE) were conducted. The final goal of this work is the self-sustained operation of a PDTE system in which all of the air used for its operation is supplied by a turbine-compressor driven ...
Takuma ENDO +6 more
doaj +1 more source
Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition
Advanced Engineering Materials, EarlyView.A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley +1 more source
, 2012 This paper describes a mathematical model of the defrost process for a finned-tube air chiller, utilised as a heat exchanger in a secondary loop multi-temperature transport refrigeration system, where an antifreeze mixture is deployed as a sensible ...
Finn, Donal Patrick +3 more
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