نتایج جستجو برای: polyethylene film

تعداد نتایج: 121124  

Journal: :Environmental science & technology 2009
Dong Suk Kim Seung-Yeop Kwak

The photocatalytic inactivation of Escherichia coli with the film adhesion method by using Degussa P25TiO2 and mesoporous TiO2 coated on glass was investigated. Monodisperse spherical mesoporous TiO2 with a morphology size of approximately 800 nm was synthesized via the sol-gel approach and coated onto glass substrates without cracking by using the doctor blade method with various amounts of po...

Journal: :Applied microbiology 1970
J E Doyle A W McDaniel K L West J E Whitbourne R R Ernst

The resistance to destruction of spores of Bacillus subtilis var. niger hermetically sealed in various polymeric films and exposed to ethylene oxide with and without relative humidity was determined. The effect of desiccation was also determined. The order of increased resistance to sterilization with regard to type of polymeric film was found to be: polyethylene equal to polyvinyl chloride, le...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2007
Gordon R Plank Daniel M Estok Orhun K Muratoglu Daniel O O'Connor Brian R Burroughs William H Harris

Stress magnitude and distribution of both conventional polyethylene versus a crosslinked polyethylene in the liner of a total hip replacement (THR) were examined using finite element analysis and pressure sensitive film. Both types of polyethylene were assessed against head sizes of 22 and 28 mm with 5-mm thick polyethylene liners and head sizes of 28, 38, and 46 mm with 3-mm thick polyethylene...

Leila Nateghi, Mahsa Shojaei, Mohammadreza Eshaghi,

 Background: Plastic and polymeric materials remain in the soil given the fact that they are derived from petroleum resources. However, such pollution has created a special challenge for human societies. The use of biodegradable packaging has received more attention. The general purpose of this study was to investigate the use of a mixture film of whey protein concentrate and reinforced hydroxy...

Journal: :Journal of the Optical Society of Korea 2013

2017
Shengjun Li Zeng Chen Wenping Kong Xiyang Jia Junhao Cai Shaokang Dong

In this study, a uniform nanoporous NiO film, with a thickness of up to 2.6 μm, was prepared using polyethylene glycol (PEG). The addition of PEG significantly decreased the cracks in the NiO film and prevented the peeling of the NiO film from a fluorine-doped tin oxide substrate. The NiO cathode was prepared using CdSeS quantum dots (QDs) as the sensitizer, with an optimized photoelectric conv...

2002
A. Lisfi J. C. Lodder H. Wormeester B. Poelsema

Reorientation in the magnetic anisotropy as a function of film thickness has been observed in Co-Ni and Co thin films, obliquely sputtered on a polyethylene terephthalate substrate at a large incidence angle ~70°!. This effect is a consequence of the low magnetocrystalline anisotropy of the films ~fcc structure of Co! and changes in microstructure from nuclei to columns according to the thickne...

2013
Gi-Dong Sim Yong-Seok Lee Soon-Bok Lee Joost J. Vlassak

The fatigue behavior of silver films on polyethylene-terephthalate substrates is studied for various levels of film thickness, pre-stretch, sample width, and applied strain range. Films with large pre-stretch have a shorter fatigue life, with failure caused by strain localization (films thicker than 100 nm) or intergranular crack formation (100 nm film). There is a significant effect of film th...

Journal: :علوم باغبانی ایران 0
شهرام بهروزی دانشجوی سابق کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران یونس مستوفی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران ذبیح اله زمانی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران احمد احمدی مربی پردیس کشاورزی و منابع طبیعی دانشگاه تهران اسحاق رنجبر دانشجوی سابق کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران جمانه ادیب نیشابوری دانشجوی سابق کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران

in the present research, effects of modified atmosphere packaging (map) includingthree gas combinations and two packaging films (low density polyethylene (ldpe) andpolypropylene (pp)) on postharvest quality and storage-life of 'elberta' peach wereevaluated. the study was conducted as a factorial experiment based on crd(completely randomized design) with three replicates for 9 weeks. f...

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