Results 41 to 50 of about 794,055 (328)

Flicker Vision of Selected Light Sources

open access: yesMeasurement Science Review, 2017
The results of the laboratory research concerning a dependence of flicker vision on voltage fluctuations are presented in the paper. The research was realized on a designed measuring stand, which included an examined light source, a voltage generator ...
Otomański Przemysław   +2 more
doaj   +1 more source

Automated attendance accounting system [PDF]

open access: yes, 1973
An automated accounting system useful for applying data to a computer from any or all of a multiplicity of data terminals is disclosed. The system essentially includes a preselected number of data terminals which are each adapted to convert data words of
Chapman, C. P.
core   +1 more source

Challenges during Flash Lamp Annealing of Aerosol‐Deposited Barium Titanate Films

open access: yesAdvanced Engineering Materials, EarlyView.
Aerosol deposition is used to rapidly deposit barium titanate films with thicknesses ranging from 2 to 16 μm at room temperature, eliminating the need for further densification. However, to recover the electromechanical properties, annealing is required, which limits the usage of temperature‐sensitive substrates.
Michel Kuhfuß   +7 more
wiley   +1 more source

Degradation of Phenol in Pharmaceutical Wastewater using TiO2/Pumice and O3/Active Carbon

open access: yesBulletin of Chemical Reaction Engineering & Catalysis, 2020
Phenol is a toxic organic compound that detectable in the pharmaceutical wastewater, and therefore it should be eliminated. This study aims to degrade phenol in the pharmaceutical wastewater treatment using Advanced Oxidation Processes (AOPs) include the
R. Ratnawati   +4 more
doaj   +1 more source

Design of output power control system based on mass flow rate comparison of air and fuel ratio (AFR) on dual fuel generator set by using pid control method

open access: yesInternational Journal of Technology, 2019
Generator set is a tool that is used to generate energy or electrical power. The electric power generated by the generator set is used to supply the electrical loads in this thesis is lamp.
M. B. Toriki   +2 more
semanticscholar   +1 more source

High voltage pulse generator Patent [PDF]

open access: yes, 1970
High voltage pulse generator for testing flash and ignition limits of nonmetallic materials in controlled ...
Pippen, D. L.
core   +1 more source

Photoswitchable Conductive Metal–Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
A conductive material where the conductivity can be modulated remotely by irradiation with light is presented. It is based on films of conductive metal–organic framework type Cu3(HHTP)2 with embedded photochromic molecules such as azobenzene, diarylethene, spiropyran, and hexaarylbiimidazole in the pores.
Yidong Liu   +5 more
wiley   +1 more source

Eksperimental Pengaruh Variasi Sudut Ulir Pada Turbin Ulir (Archimedean Screw) Pusat Pembangkit Listrik Tenaga Mikro Hidro Dengan Head Rendah

open access: yesMajalah Ilmiah Teknologi Elektro, 2019
Indonesia has a lot of energy potential, both conventional (Non Renewable) and Renewable Energy. Energy potential that is mostly used for the Indonesian region still uses conventional energy (Non Renewable) in the form of fossil fuels (coal, natural gas ...
Agus Trisna Saputra   +2 more
doaj   +1 more source

Environmental fog/rain visual display system for aircraft simulators [PDF]

open access: yes, 1982
An environmental fog/rain visual display system for aircraft simulators is described. The electronic elements of the system include a real time digital computer, a caligraphic color display which simulates landing lights of selective intensity, and a ...
Chase, W. D.
core   +1 more source

Ferrocene Derivatives Enable Ultrasensitive Perovskite Photodetectors with Enhanced Reverse Bias Stability

open access: yesAdvanced Functional Materials, EarlyView.
Novel ferrocene derivatives (e.g., FcPhc2) are used as an ultrathin layer hole‐blocking layer, reducing hole injection from the Ag contact. This results in an ultralow noise spectral density of 1.2 × 10−14 A Hz−1/2, and a high specific detectivity of 8.1 × 1012 Jones at −0.5 V.
Eunyoung Hong   +16 more
wiley   +1 more source

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