Results 111 to 120 of about 43,943 (330)
Investigation of DC-8 nacelle modifications to reduce fan-compressor noise in airport communities. Part 4 - Flight acoustical and performance evaluations, for period May 1967 - October 1969 [PDF]
Flight acoustical and performance evaluations of DC 8 nacelle modifications to reduce fan-compressor noise in airport ...
Andresen, H. +7 more
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People and Nature, EarlyView.Abstract This study critically analyses the main narratives surrounding the Atlantic blue crab (Callinectes sapidus) in the Lagoon of Venice. We used a mixed‐method approach, performing a qualitative discourse analysis on a sample of 68 textual sources to identify the narratives across two sectors in the management of the case study: media and politics,
Elisa Zanoni +3 more
wiley +1 more source
Computer program for the attenuation of high bypass turbofan engine noise [PDF]
, 1975 Two computer programs determine effect of boundary layer on attenuation of sound in a circular duct lined with material used in noise suppresion in fan inlet and exhaust ducts of turbofan ...
Veldman, H. F.
core +1 more source
Quarterly Journal of the Royal Meteorological Society, EarlyView.Using hectometric Weather Research and Forecasting simulations, we examine how urban blue spaces mitigate extreme summer heat in northwestern European cities through neighbourhood‐scale cooling mechanisms. Results show horizontal advection dominates cooling by mixing cooler air from waterbodies with warmer urban air, providing ∼50W·m−2$$ \sim 50\kern0 ...
Xuan Chen +5 more
wiley +1 more source
Sir Syed University Research Journal of Engineering and Technology, 2020 The propagation of microwave (MW) of frequencies above 300 MHz is affected by the existence and properties of the atmospheric duct. Atmospheric ducts exist in many areas of the world ocean, including the Arabian Sea.
Imran Ullah Khan
doaj
Open Geosciences, 2019 This paper proposes a new refractivity profile estimation method based on the use of AIS signal power and quantum-behaved particle swarm optimization (QPSO) algorithm to solve the inverse problem.
Tang Wenlong +4 more
doaj +1 more source
River Research and Applications, EarlyView.ABSTRACT Digital networks are virtual representations of freshwater systems that provide important inputs to, and mapping of, river classifications, simulation models, and quantitative data analyses for policy, planning, and management. Strahler order has often been used to characterize network configuration and as a proxy indicator of river channel ...
Doug Booker +3 more
wiley +1 more source
Further development of the dynamic gas temperature measurement system [PDF]
Two experiments for verifying the frequency response of a previously-developed dynamic gas temperature measurement system were performed. In both experiments, fine-wire resistance temperature sensors were used as standards.
Elmore, D. L. +2 more
core +1 more source
Inter‐Crystal Spacing of Implantable Polymeric Surfaces as a Key Suppressor of Microbial Adhesion.
Small, EarlyView.Biofilm formation on implantable devices is addressed by controlling inter‐crystal spacing in shape memory polymers. Repeated shape recovery aligns and enlarges crystalline phases and reduces amorphous regions, enhancing bacterial repellency. Three biofilm‐forming bacteria show reduced adhesion, and a one‐year dog bile‐duct model maintains function ...
Kang Suk Lee +5 more
wiley +1 more source
Technical note: formation of airborne ice crystals in a wall independent reactor (WIR) under atmospheric conditions [PDF]
, 2008 Both, gas and particle scavenging contribute to the transport of organic compounds by ice crystals in the troposphere. To simulate these processes an experimental setup was developed to form airborne ice crystals under atmospheric conditions. Experiments
Fries, Elke +6 more
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