نتایج جستجو برای: expanded polystyrene

تعداد نتایج: 70447  

Journal: :journal of arthropod-borne diseases 0
a soltani department of medical entomology and vector control, school of public health and institute of health research, tehran university of medical sciences, iran h vatandoost department of medical entomology and vector control, school of public health and institute of health research, tehran university of medical sciences, iran h jabbari research center for environmental health, tehran, iran ar mesdaghinia department of medical entomology and vector control, school of public health and institute of health research, tehran university of medical sciences, iran ah mahvi department of medical entomology and vector control, school of public health and institute of health research, tehran university of medical sciences, iran m younesian department of medical entomology and vector control, school of public health and institute of health research, tehran university of medical sciences, iran

background: mosquitoes transmit several diseases to human. there are several measures for control of larvae. as part of integrated vector management (ivm) program, the utility of floating layers of polystyrene beads (eps) is a po­ten­tial alternative in habitats of mosquito larva. eps beads prevent oviposition of mosquito as well as killing the im­ma­ture stages by forming a tick layer on the w...

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Journal: :Marine Engineering 2017

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2012
A. Soltani H. Vatandoost H. Jabbari A. R. Mesdaghinia A. H. Mahvi M. Younesian A. A. Hanafi-Bojd

Concerns about traditional chemical pesticides has led to increasing research into novel mosquito control methods. This study compared the effectiveness of 2 different types of polystyrene beads for control of mosquito larvae in south-east Islamic Republic of Iran. Simulated field trials were done in artificial pools and field trials were carried out in 2 villages in an indigenous malaria area ...

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2017
Kazuyuki Hattori

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Journal: :KOBUNSHI RONBUNSHU 2000

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Journal: :Open Journal of Applied Sciences 2018

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Journal: :MATEC Web of Conferences 2017

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Journal: :Procedia Engineering 2017

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Journal: :Journal of Civil Engineering, Science and Technology 2016

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2005
G. W. Mulholland

The uncertainties of the mean diameters of the nominal 1.0 µm SRM(®) 1690 polystyrene spheres and of the nominal 0.3 µm SRM(®) 1691 polystyrene spheres are recomputed using the current NIST Guidelines for computing uncertainty. The revised expanded uncertainty (approximately 95 % confidence level) for SRM(®) 1690 polystyrene spheres is equal to 0.005 µm compared to previous value of 0.008 µm. T...

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