Results 31 to 40 of about 100,855 (336)

Thermoradiationally Modified Polytetrafluoroethylene as a Basis for Membrane Fabrication: Resistance to Hydrogen Penetration, the Effect of Ion Treatment on the Chemical Structure and Surface Morphology, Evaluation of the Track Radius

Membranes, 2023
A study of the properties of thermoradiationally modified polytetrafluoroethylene and its importance for use as the basis of polymer membranes is presented. The hydrogen permeability of a TRM-PTFE film was studied in comparison with an original PTFE film,
Lev Vladimirovich Moskvitin, Ol’ga Alekseevna Koshkina, Sergei Vital’evich Slesarenko, Mikhail Aleksandrovich Arsentyev, Leonid Izrailevich Trakhtenberg, Sergei Mikhailovich Ryndya, Eldar Parpachevich Magomedbekov, Alexander Sergeevich Smolyanskii   +7 more
doaj   +1 more source

Suspensory materials for surgery of blepharoptosis: a systematic review of observational studies [PDF]

, 2016
Background Frontalis suspension surgery is considered the procedure of choice in cases of blepharoptosis. Among all the materials used in this type of surgery, ophthalmic and plastic surgeons prefer to use autologous Fascia Lata.
Amorelli, Giulia Maria, BOTTONE, Andrea, LA TORRE, Giuseppe, MIPATRINI, DANIELE, PACELLA, Elena, PACELLA, FERNANDA, SMALDONE, GIANPAOLO, TURCHETTI, PAOLO   +7 more
core   +3 more sources

Transport Properties of Electro-Sprayed Polytetrafluoroethylene Fibrous Layer Filled with Aerogels/Phase Change Materials

Nanomaterials, 2020
This work is the first attempt to prepare microporous polytetrafluoroethylene (PTFE) fibrous layers embedded with aerogels/phase change materials. For preparation of this layer, the needle-less electrospray technology of water dispersion of individual ...
Xiaoman Xiong, Mohanapriya Venkataraman, Tao Yang, Klara Kucerova, Jiří Militký, Kai Yang, Guocheng Zhu, Juming Yao   +7 more
doaj   +1 more source

Constant rate thermal analysis for thermal stability studies of polymers [PDF]

, 2011
This paper explores the relationship between the shapes of temperature-time curves obtained from experimental data recorded by means of constant rate thermal analysis (CRTA) and the kinetic model followed by the thermal degradation reaction.
Criado Luque, José Manuel, Perejón Pazo, Antonio, Pérez Maqueda, Luis Allan, Sánchez Jiménez, Pedro Enrique   +3 more
core   +1 more source

Suprarenal inferior vena cava ligation: All is not lost

Indian Journal of Vascular and Endovascular Surgery, 2021
Inferior vena cava (IVC) injuries account for about 25%–40% of abdominal vascular injuries. Blunt vena cava injury has a lower survival rate than penetrating injury. They may present with torrential bleed.
Vignesh Kumar, Vijayan Purushothaman, Dinesh Bagaria, Harshit Agarwal   +3 more
doaj   +1 more source

Mechanical and tribological properties of polymer composite materials based on PTFE filled with natural mica and magnesium aluminium oxide [PDF]

Tribology and Materials
In this research, the results of studies on the influence of natural mica and mixed magnesium aluminium oxide (MAO) on the structure and properties of polytetrafluoroethylene (PTFE) are presented.
Iuliia Kapitonova, Praskovia Tarasova, Nadezhda Lazareva, Aitalina Okhlopkova, Sakhayana Danilova   +4 more
doaj   +1 more source

Ir-spectal analysis of organicplastics based on polyeteraphthorethylene [PDF]

, 2019
На сьогодні композиційні матеріали на полімерній основі, армовані органічними волокнами, за обсягами виробництва перевершують сталь, алюміній, чавун і пластмаси завдяки своїм унікальним властивостям: високій хімічній стійкості, низькій густині (вони ...
Burya, Aleksandr, Kalinichenko, Serhii, Suchilina-Socolenko, Svetlana, Буря, Олександр, Калініченко, Сергій, Сучіліна-Соколенко, Світлана   +5 more
core   +1 more source

Direct Ink Writing of Polytetrafluoroethylene (PTFE) with Tunable Mechanical Properties.

ACS Applied Materials and Interfaces, 2019
Polytetrafluoroethylene (PTFE) is a unique polymer with highly desirable properties such as resistance to chemical degradation, biocompatibility, hydrophobicity, anti-stiction, and low friction coefficient.
Zhuoran Jiang, O. Erol, Devina Chatterjee, Weinan Xu, N. Hibino, L. Romer, S. Kang, D. Gracias   +7 more
semanticscholar   +1 more source

Characteristics of Initial Attachment and Biofilm Formation of Pseudomonas aeruginosa on Microplastic Surfaces

Applied Sciences, 2022
The toxic effect of microplastics on living organisms is emerging as a serious environmental issue nowadays. The biofilm formed on their surface by microorganisms can further increase the toxicity, but the mechanism of biofilm formation on microplastics ...
Purevdash Tsend Ayush, Je-Hyeon Ko, Hyun-Suk Oh   +2 more
doaj   +1 more source

Introduction. Carotid endarterectomy versus carotid stenting. A never-ending story [PDF]

, 2018
L'articolo discute le controversie relative all'accettazione in pratica clinica dello stentig ...
de Donato, Gianmarco, Setacci, Carlo, Sterpetti, Antonio   +2 more
core   +1 more source