نتایج جستجو برای: packaging material
تعداد نتایج: 382145 فیلتر نتایج به سال:
Paper and board are widely used as food packaging materials, mainly for disposable products. As public interest in conservation of natural resources has accelerated in the past several years, the use of recycled paper and board has increased. Recycled fiber materials can be used in certain limits as food contact materials. The safety of recycled fiber-based materials for food contact applicatio...
Blackberry is a highly perishable fruit and its quality decreases very quickly during postharvest period. In this research, two types of container including: oriented poly styrene (OPS), a petroleum-based material, and oriented poly corn starch (OPCS), a bio-based material, was analyzed over 14 days to determine their effects on shelf life of thornless blackberry. Packages were placed in freeze...
This thesis treats the development of packaging and integration methods for the cost-efficient encapsulation and packaging of microelectromechanical (MEMS) devices. The packaging of MEMS devices is often more costly than the device itself, partly because the packaging can be crucial for the performance of the device. For devices which contain liquids or needs to be enclosed in a vacuum, the pac...
Many downhole instrumentation tools manufacture today utilizing organic material packaging technology for producing electronic modules. Such approach with organic PCB, standard packaged discrete semiconductor and SMT-type passive components has limited the device operating temperature range in 177oC area. An alternative packaging approach is to utilize Hybrid Microelectronics Technology to incr...
Sunscreens play a fundamental role in skin cancer prevention and in protection against photo-aging. UV filters are often photo-unstable, especially in relation to their vehicles and, being lipophilic substances, they are able to interact with plastic packaging. Finally, UV filter stability can be significantly affected by the routine use of the product at high temperatures. This work aims to st...
nanotechnology in manufacturing of sensors with small dimensions, evaluate a lot of the parameters carefully. the applications of nanosensors include three important branch in nan biotechnology (medical, agricultural and food industries). nan osensors technology as a new science is a powerful substitution for conventional analytical techniques in the field of agricultural sciences. sensitivity ...
Reduction in surface and interface reflectance via the integration of subwavelength nanostructures in flexible polymer packaging material combined with incorporation of dielectric nanoislands into a conventional two-layer antireflection coating has been demonstrated, analyzed and optimized. Transmittance measurements of moth-eye textured polymer packaging sheets with different tapered pillar he...
After a brief review of varistor fundamentals, including a discussion of the infamous " speed of response " issue, the report describes several unconventional packaging implementations of varistor material (usually a flat disc between metallized electrodes), such as molded axial package, bulkhead connectors, coaxial mounting, reconstituted material, and varistor substrates with surface conducti...
Major stages 2006-04 CPM-1 (2006) added topic Revision of ISPM 15 (Regulation of wood packaging material in international trade) (2006-011) 2006-09 Treatment submitted in response to 2006-08 call for treatments 2006-12 TPPT reviewed treatment 2007-07 Revised text considered by TPFQ 2007-12 Further revised text submitted to TPPT 2008-12 TPFQ discussion 2009-01 TPPT reviewed treatment 2009-07 Ame...
Non-enveloped viruses protect their genomes by packaging them into an outer shell or capsid of virus-encoded proteins. Packaging and capsid assembly in RNA viruses can involve interactions between capsid proteins and secondary structures in the viral genome as exemplified by the RNA bacteriophage MS2 and as proposed for other RNA viruses of plants, animals and human. In the picornavirus family ...
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