Ara
Toplam kayıt 1608, listelenen: 971-980
Effect of Hilbert-Huang transform on classification of PCG signals using machine learning
(King Saud bin Abdulaziz University, 2022)
Heartbeat sounds are biological signals used in the early diagnosis of cardiovascular diseases. Digital heartbeat sound recordings, called phonocardiogram (PCG), are used in the determination and automatic classification ...
Experimental and numerical investigation of heat transfer in a channel with multiple phase change materials (PCMs)
(Elsevier Ltd, 2022)
In this study, the thermal performance of an air-phase change material (PCM) unit used in free cooling applications was examined experimentally and numerically by Comsol finite element simulation software. Effects of the ...
Glutathione-responsive multifunctionalizable hydrogels via amine-epoxy "click" chemistry
(Elsevier Ltd, 2020)
A novel glutathione-responsive hydrogel was synthesized through catalyst-free epoxy-amine ‘click’ chemistry using PEG-diamine and a redox-responsive diepoxy crosslinker. The chain length of PEG-diamine component was varied ...
In silico, 6lu7 protein inhibition using dihydroxy-3-phenyl coumarin derivatives for SARS-CoV-2
(Turkish Chemical Society, 2020)
The new emerging coronavirus (SARS-CoV-2) has become a global health problem with very rapid transmission from person to person, causing severe acute respiratory problems. In the circumstance, the discovery of vaccines or ...
Production and analysis of electrospun pa 6,6 and pva nanofibrous surfaces for filtration
(Inst. Nat. Cercetare-Dezvoltare Text. Pielarie, 2021)
Electrospun nanofibrous surfaces were produced by using two different polymers (PA 6,6 and PVA) at three different levels of polymer feeding rate (0.2, 0.6 and 1.0 ml/h, respectively) and three different levels of production ...
A new reagent for efficient synthesis of nitriles from aldoximes using methoxymethyl bromide
(Editura Academiei Romane, 2021)
This study outlines an efficient, high-yielding, and rapid method by which to access diverse nitriles from aldoximes with methoxymethyl bromide (MOM-Br) in THF. It represents the first application of MOM-Br as a deoximation ...
Electronically Tunable Memcapacitor Emulator Based on Operational Transconductance Amplifiers
(World Scientific, 2021)
Memory circuit elements are of interest due to their use in different fields of science and technology. In this research, a new multi-outputs operational transconductance amplifiers (MO-OTA)-based memcapacitor emulator is ...
Investigation of physical and mechanical properties of mortars produced by polymer coated perlite aggregate
(Elsevier Ltd, 2021)
With its low unit weight, expanded perlite (EP) offers significant advantages in heat and sound insulation in the construction sector. However, due to its high-water absorption capacity, EP affects the physical and mechanical ...
Magnetite nanoparticles-based hydroxyl radical scavenging activity assay of antioxidants using N, N-dimethyl-p-phenylenediamine probe
(TUBITAK, 2020)
Excessive amounts of reactive oxygen species (ROS), unless counterbalanced by antioxidants, can cause cellular damage under oxidative stress conditions; therefore, antioxidative defenses against ROS must be measured. With ...
Design of a real-sized composite drive shaft and critical points from beginning to end
(Applied Mechanics Laboratory, 2020)
In this study, the replacement of a metal drive shaft by a composite counterapart was investigated. The drive shaft considered here is a thin walled tube with an internal diameter of 60 mm and a length of 1200 mm. These ...