Results 21 to 30 of about 3,995,176 (315)
Green synthesis of ZnO nanoparticles by pineapple peel extract from various alkali sources
Journal of Asian Ceramic Societies, 2022 Zinc oxide nanoparticles (ZnO NPs) are concerned as potential materials due to their wide-ranging applications. The green synthesis of ZnO NPs using of plant extract as capping agent has been attracted much of interest of reserachers.
Arrak Klinbumrung +5 more
doaj +1 more source
A compressible mixture model with phase transition [PDF]
, 2013 We introduce a new thermodynamically consistent diffuse interface model of Allen--Cahn/Navier--Stokes type for multi-component flows with phase transitions and chemical reactions.
Giesselmann, Jan +2 more
core +1 more source
Sensors, 2017 Carbon fiber-reinforced plastic (CFRP) is widely used for structural members of transportation vehicles such as automobile, aircraft, or spacecraft, utilizing its excellent specific strength and specific rigidity in contrast with the metal.
Daiki Shiozawa +4 more
doaj +1 more source
Phase Analysis of Series Arc Signals for Low-Voltage Electrical Devices
Energies, 2020 An arc fault is an electrical breakdown of the insulating medium in an electrical system. When arc faults occur, they cause electrical fires with local sparks and temperatures of over 5000 °C.
Hong-Keun Ji +2 more
doaj +1 more source
Mathematical model of the photoplethysmogram for testing methods of biological signals analysis [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2023 The purpose of this study was to develop a mathematical model of the photoplethysmogram, which can be used to test methods that introduce the instantaneous phases of the modulating signals.
Vakhlaeva, Anna Mikhailovna +4 more
doaj +1 more source
Preparation of Certified Reference Materials of Sillimanite for Chemical Composition Analysis
Yankuang ceshi, 2017 With an increasing utilization of sillimanite, some reference materials of sillimanite for chemical composition have been developed in countries such as the UK, South Africa and Japan.
XU Chun-xue +5 more
doaj +1 more source
Experiment and Application Study of Two-component Composite Grouting Material for Mine
Meikuang Anquan, 2020 In order to develop a green grouting material, portland cement, sulphoaluminate cement and loess, fly ash and zeolite powder were used as the substrate.
BAI Longjian, YAN Guochao
doaj +1 more source
Cyclic variations of quality characteristics in river water in an industrial region
Water Science and Technology, 2021 River water in industrial regions is a dynamic medium defined by random variables that cannot be described by linear equations. However, some water quality characteristics, e.g., pollutant concentrations, which look chaotically distributed are largely ...
O. M. Rozental, D. A. Tambieva
doaj +1 more source
Spectral Analysis of Fluoride and Nitride Phase in Secondary Aluminum Dross
, 2022 Secondary aluminum dross (SAD) is a hazardous waste produced in the electrolytic aluminum, aluminum processing, and aluminum recycling industries. The SAD produced from different processes has the characteristics of complex mineral phases and large ...
Li Shao-peng +5 more
core +1 more source
Yankuang ceshi, 2019 BACKGROUND Over the years, the total anomaly analysis results of geochemical exploration have found that there are not many deposits. Under the conditions of epigenetic conditions, different elements have different migration and deposition laws and ...
GE Jiang-hong +3 more
doaj +1 more source