Results 131 to 140 of about 68,067 (337)
Insights Into the Mechanisms Controlling the Residual Strength of Bio‐cemented Sands
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Microbially induced carbonate precipitation (MICP) is an emerging technique for enhancing the mechanical properties of granular soils. Although several experimental studies have reported increased shear strength in MICP‐treated soils at both peak and residual states, other findings have shown reductions in residual strength compared to ...
Aoxi Zhang +3 more
wiley +1 more source
Investigation of the Starting-Up Axial Hydraulic Force and Structure Characteristics of Pump Turbine in Pump Mode [PDF]
, 2021 Zhongyu Mao +7 more
openalex +1 more source
Oikos, EarlyView.Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli +4 more
wiley +1 more source
Excess noise from gas turbine exhausts [PDF]
, 1974 There is evidence to show that the exhaust noise from gas turbines contains components which exceed the jet mixing noise at low jet velocities.
Cumpsty, N. A.
core
Development of Vertical Wind Turbine Blades Using 4D Printing of Composites
Polymer Composites, EarlyView.Vertical axis wind turbine: White blade: Commercial. Black blade: Composite. ABSTRACT This paper presents the procedure to make vertical wind turbine blades using the technique of 4D printing of composites (4DPC). The blades are made using carbon/epoxy composite materials with a fiber volume fraction of about 60%.
Emad Fakhimi, Suong Van Hoa
wiley +1 more source
Simulating wind turbine interactions using the vorticity transport equations [PDF]
, 2009 The aerodynamic interactions that can occur within a wind farm result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Brown, R.E., Fletcher, Timothy M.
core
Polymer Composites, EarlyView.Schematic representation of hemp‐, glass‐, and carbon‐based laminated composite curved beams, including different stacking sequences and their vibration response. ABSTRACT In recent years, increasing environmental awareness has stimulated growing interest in natural fiber‐reinforced composites (NFRCs) due to their eco‐friendly composition ...
Aykut Çetin, Hasan Kurtaran
wiley +1 more source
Modeling of Turbine Engine Axial-Flow Compressor and Turbine Characteristics
Engineering Transactions, 1997 The paper describes the concept of modeling the turbine engine axial-flow compressor and turbine characteristics by using the function of two variables. Accuracy of the proposed concept has been verified on the example of the given compressor and turbine
M. Orkisz, S. Stawarz
doaj
Quarterly Journal of the Royal Meteorological Society, EarlyView.This study develops a method to identify the source areas of precipitation events, as illustrated for the western part of the Netherlands. Radar‐based precipitation data are traced back to their source areas and machine‐learning techniques are used to identify hypothesized causes: urban heat, surface roughness, and air pollution. We find that urban and
Jelmer van der Graaff +1 more
wiley +1 more source
A novel design of a hybrid micro-scale multistage turbine model for sustainable energy sources
Case Studies in Thermal EngineeringThe continued search for ways of getting the highest level of power that is extracted from the working fluid that passes through the turbine blades is still the main concern of researchers. In this article, a new model of a micro-scale multistage turbine
Ahmed M. Daabo +6 more
doaj +1 more source