Results 101 to 110 of about 61,821 (285)

Sports Activity Recognition Using Textile‐Based Sensor Fusion and Complex‐Valued Residual Convolutional Neural Networks

open access: yesAdvanced Intelligent Systems, EarlyView.
Motion artifacts in electrocardiographic signals, conventionally dismissed as noise, are shown to encode discriminative activity information. A smart t‐shirt fusing textile strain sensors with textile ECG electrodes, processed through a complex‐valued residual network, recognizes 12 sport activities.
Nada Al‐azzawi   +4 more
wiley   +1 more source

Chemoselective Polyamidation [PDF]

open access: yesPolymer Journal, 1990
Ueda, Mitsuru   +3 more
openaire   +1 more source

Rapid Biogas Production by Compact Multi-Layer Membrane Bioreactor: Efficiency of Synthetic Polymeric Membranes

open access: yesEnergies, 2013
Entrapment of methane-producing microorganisms between semi-permeable synthetic membranes in a multi-layer membrane bioreactor (MMBR) was studied and compared to the digestion capacity of a free-cell digester, using a hydraulic retention time of one day ...
Supansa Youngsukkasem   +3 more
doaj   +1 more source

Effect of temperature on the fiber/matrix interfacial strength of carbon fiber reinforced polyamide model composites

open access: yesMechanical Engineering Journal, 2016
Carbon Fiber Reinforced Thermoplastics (CFRTP) have attracted attention in the automotive industry for their productivity and high specific strength and modulus.
Kazuto TANAKA   +4 more
doaj   +1 more source

Thermal Stability of Aliphatic and Semiaromatic Polyamides: Tailoring the Choice of Isothermal Aging Temperature by Using Kinetic Models of Degradation

open access: yesJournal of Applied Polymer Science, EarlyView.
Thermogravimetric analysis was performed to study the degradation of aliphatic and semiaromatic polyamides intended for the electrical insulation of future electric aircraft. Using the TGA results, the Flynn and Wall method and Toop's model, the activation energies for the degradation processes were calculated, and kinetic models of the degradation ...
Julien Chedaille   +3 more
wiley   +1 more source

Simultaneous Recycling of PA6/Carbon Fiber Composite Residues and Ionomer Residues for the Production of PA6‐Based Composites: Effect of Processing Route on Properties

open access: yesJournal of Applied Polymer Science, EarlyView.
The simultaneous recycling of polyamide 6/carbon fiber and ionomer residues produces PA6‐based composites with tailored stiffness, strength, and toughness. Carbon fibers enhance mechanical performance and heat resistance, while ionomers improve ductility and impact strength.
Milena R. Silva, Adriana M. C. Souza
wiley   +1 more source

Structure-property relationships in glass-reinforced polyamide, part 1: The effects of fiber content [PDF]

open access: yes, 2006
We present the results of an extensive study of the performance of injection-molded glass-fiber reinforced polyamide 66 with glass content between 0 and 40% and based on two chopped glass products both sized with polyamide compatible sizing.
Thomason, J.L.
core   +1 more source

Design principles for vitrimers: Linking dynamic covalent chemistry, network architecture, and engineering performance

open access: yesBulletin of the Korean Chemical Society, EarlyView.
This review examines vitrimer performance from a broader perspective, considering not only dynamic covalent chemistry but also molecular structure, network architecture, and rheological behavior. These factors are discussed in relation to service and processing windows, reprocessing, repair, and engineering applications, providing a multiscale ...
Kyosun Ku, Hyeonuk Yeo
wiley   +1 more source

Micro‐ and nanoplastics in gastrointestinal disorders: Mapping the translational gap between exposure, biomonitoring, and pathogenic mechanisms

open access: yesBMEMat, EarlyView.
This review highlights critical “translational gaps” in understanding micro‐ and nanoplastics impacts on gastrointestinal diseases, bridging exposure, detecting, and mechanistic toxicology. Abstract Micro‐ and nanoplastics (MNPs) have become pervasive environmental contaminants with increasing evidence linking them to adverse health outcomes.
Zhenli Diao   +3 more
wiley   +1 more source

Catalytic conversion controlled interfacial polymerization for polyamide membranes

open access: yes, 2018
We propose a facile "catalytic conversion" strategy to control the interfacial polymerization of polyamide membranes for the first time. Continuous release of p-phenylenediamine (PPD) from pollutant p-nitrophenylamine (PNA) is regulated by catalytic time.
Wei, Xiuzhen   +7 more
core   +1 more source

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