نتایج جستجو برای: polyethylene pe

تعداد نتایج: 52018  

2003
George F. Fanta Frederick C. Felker John H. Salch

Starch-coated polyethylene (PE) films were prepared by immersing PE in a hot, jet cooked solution of starch. They were allowed to react with acrylonitrile (AN) in the presence of ceric ammonium nitrate initiator, and the graft polymerization that occurred produced starch-g-polyacrylonitrile (PAN) coatings that contained about 25 wt % grafted PAN. The starch-g-PAN coatings tightly adhered to the...

2012
Stephan M Röhrl Bo Nivbrant Kjell G Nilsson

BACKGROUND AND PURPOSE Highly crosslinked polyethylene (PE) is in standard use worldwide. Differences in the crosslinking procedure may affect the clinical performance. Experimenatal data from retrieved cups have shown free radicals and excessive wear of annealed highly crosslinked PE. We have previously reported low wear and good clinical performance after 6 years with this implant, and now re...

Journal: :The Analyst 2016
Ningning Zhou Guowen Meng Zhulin Huang Yan Ke Qitao Zhou Xiaoye Hu

This report presents a simple and inexpensive fabrication approach to a flexible transparent composite film as a "cut-and-paste" surface-enhanced Raman scattering (SERS) substrate for in situ detection of organic pollutants. First, a self-assembled monolayer of Ag-nanocubes (Ag-NCs) is obtained at the air/water interface. Then, the Ag-NC monolayer is retrieved onto a flexible transparent polyet...

2012
Fansheng Kong Fang Zhou Linfu Ge Ximin Liu Yong Wang

BACKGROUND Liposomes can be modified with different ligands to control their biological properties, such as longevity, targeting ability, and intracellular penetration, in a desired fashion. The aim of this study was to modify liposomes with a novel mannosylated polyethylene glycol-phosphatidylethanolamine (M-PEG-PE) ligand to achieve active targeted gene delivery. METHODS Rat Kupffer cells w...

Journal: :Journal of clinical orthopaedics and trauma 2015
Gautam Chakrabarty Mayank Vashishtha Daniel Leeder

Polyethylene (PE) has been used extensively in knee arthroplasty since the mid 20th century. Progress in material manufacturing and processing has led to newer polyethylenes over last few decades with different material properties. It has been established that PE wear in knee arthroplasty causes particle induced osteolysis which is the main reason for late failure and requires revision surgery....

Journal: :journal of modern rehabilitation 0
elham khazaie msc student, department of orthosis and prosthesis, school of rehabilitation, rehabilitation college, iran university of medical sciences, tehran, iran hassan saeedi assistant professor, department of rehabilitation, school of rehabilitation, iran university of medical sciences, tehran, iran reza vahab -kashani instructor, department of rehabilitation, university of social welfare and rehabilitation sciences, tehran, iran

introduction: knee orthosis is used in different cases and can be seen pistoning movement in all orthosis. the purpose of this study was to evaluate the effects of increasing mass knee brace and two kinds of silicon and polyethylene (pe) pad on pistoning movement during walking, on health subject. material and methods: a total of 20 healthy volunteers, including 10 men and 10 women, with an ave...

2002
Inkook Jang Susan B. Sinnott

Molecular dynamics simulations of ion deposition processes are used to study the deposition of C3H5 1 ions on crystalline polystyrene ~PS! and polyethylene ~PE! surfaces at energies of 50 and 25 eV. For each system, 80 trajectories are carried out on pristine surfaces and the incident angle in every case is normal to the surface. The forces are determined using the reactive empirical bond order...

Journal: :Microplastics 2023

Microplastics are ubiquitous in the environment, including ocean, soil, and air. Therefore, there concerns regarding human exposure. Since it is known that surface of microplastics various environments chemically deteriorated by external factors such as ultraviolet rays waves, essential to evaluate biological effects degraded microplastics. In this study, we experimented accelerating degradatio...

Journal: :IOP conference series 2021

Abstract This research article investigates the influence of oxidized polyethylene (PE) polymer on rheological and performance properties SBS modified bitumen at an optimum dose 0.5 % by weight. To evaluate impact PE different testing such as indirect tensile strength resilient modulus was conducted blended bituminous concrete mixes rheology determined using dynamic shear rheometer. It conclude...

Journal: :Journal of Polymers and The Environment 2022

Abstract This paper assesses the modifications in properties of rotomolded polyethylene (PE) and polylactic acid (PLA) composites obtained with 5 10% giant reed fibers, mainly focusing on alterations due to a bio-disintegration process. Thermal (melting temperature crystallinity degree), morphology (via optical scanning electron microscopy), chemical changes (by Fourier Transformed Infrared spe...

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