Results 1 to 10 of about 157,510 (158)

Investigating the Electro-Optic Response of Steroid Doped Liquid Crystal Devices

open access: yesApplied Sciences, 2023
Nature is highly efficient at producing chiral compounds that are enantiomerically pure. The inherent chirality of naturally occurring biomolecules means that many have the potential to be used as chiral dopants for cholesteric liquid crystal (CLC ...
Steven M. Wolf   +7 more
doaj   +1 more source

Gunshots Localization and Classification Model Based on Wind Noise Sensitivity Analysis Using Extreme Learning Machine

open access: yesIEEE Access, 2022
The gunshot event localization and classification have numerous real-time applications. The study is also useful for steering the video camera and guns in the directed direction.
Shahzad Ahmad Qureshi   +9 more
doaj   +1 more source

Economic Feasibility of PV Mounting Structures on Industrial Roofs

open access: yesBuildings, 2023
This study determines the viability and profitability of photovoltaic (PV) mounting structures on industrial roofs. For this purpose, more than 656,000 different cases have been analyzed, combining different consumption patterns, energy prices, locations,
Alicia Perdigones   +4 more
doaj   +1 more source

Solar Position Algorithm Based on the Kepler Equation

open access: yesApplied Sciences, 2022
When calculating the position of the sun, earth’s motion can be assumed to be an ellipse if the accuracy of calculation is required to be 0.01 degrees.
Weidong Huang, Bowen Liu
doaj   +1 more source

Near-Zero Temperatures Arrest Movement of the Diaheliotropic Malva sylvestris

open access: yesPlants, 2023
In the present study, the diaheliotropic leaf movement pattern of Malva sylvestris in relation to the impact of low temperature is presented. Seasonal measurements of movement characteristics along with important aspects of plant function, such as ...
Elena Arvaniti   +2 more
doaj   +1 more source

Models and algorithms for optimizing the location of solar batteries

open access: yesТехнологія та конструювання в електронній апаратурі, 2023
The study aimed to create a method for optimizing the position of solar batteries with fixed location to increase their efficiency, namely, the generation of maximum energy during a certain time, as well as reducing the unevenness of electricity ...
Anatolii Yefimenko, Lyubov Prisyazhniuk
doaj   +1 more source

Stress Coupling Analysis and Failure Damage Evaluation of Wind Turbine Blades during Strong Winds

open access: yesEnergies, 2022
Blades in strong wind conditions are prone to various failures and damage that is due to the action of random variable amplitude loads. In this study, we analyze the failure of 1.5 MW horizontal axis wind turbine blades.
Kangqi Tian   +5 more
doaj   +1 more source

Perceived Azimuth Direction Is Exaggerated: Converging Evidence From Explicit And Implicit Measures [PDF]

open access: yes, 2016
Recent observations suggest that perceived visual direction in the sagittal plane (angular direction in elevation, both upward and downward from eye level) is exaggerated.
Durgin, Frank H., Li, Z.
core   +4 more sources

A New Approach towards Precise Planar Feature Characterization Using Image Analysis of FMI Image: Case Study of Gachsaran Oil Field Well No. 245, South West of Iran [PDF]

open access: yesJournal of Petroleum Science and Technology, 2015
Formation micro imager (FMI) can directly reflect changes of wall stratums and rock structures. Conventionally, FMI images mainly are analyzed with manual processing, which is extremely inefficient and incurs a heavy workload for experts.
mosayeb shafiezadeh   +2 more
doaj   +1 more source

Calculating the aerodynamics of vertical axis wind turbines

open access: yesVietnam Journal of Mechanics, 2012
Vertical axis wind turbine technology has been applied last years, very long after horizontal axis wind turbine technology. Aerodynamic problems of vertical axis wind machines are discussible.
Hoang Thi Bich Ngoc
doaj   +1 more source

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