Besides the operation costs of thermal power plant, contaminative gas emission is also optimized as an objective.
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Thus, Pt or NiOx is often used as a co-catalyst, which is economically unattractive and environmentally contaminative.
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Before 1998, all maintenance records were stored in paper format, but the paper records were either contaminative or incomplete.
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The C1s peaks at 284.8 and 288.9 e V were assigned to the contaminative hydrocarbon adsorbed on the sample surface.
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The sample without SAFI merely had 5 species, which were contaminative index species, e.g. larvae of mosquito Culicidae and midges Chironomidae.
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Furthermore, long-term storage of probes labeled in this manner is more convenient, less contaminative and degradative compared with traditional probes.
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Furthermore, two paths were re-profiled to check if the proposed invasive method has a significantly contaminative effect on the internal temperature field.
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The removed plant is classed as contaminative waste and there are controls on its disposal, which have to be adhered to and carry an additional expense.
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Some of the brachyceran flies are important transmitters of pathogenic organisms through a route known as mechanical (or contaminative) transmission.Scoles,G.A., (2008) Comparison of the efficiency of biological transmission of Anaplasma marginale (Rickettsiales: Anaplasmataceae) by Dermacentor andersoni Stiles (Acari: Ixodidae) with mechanical transmission by the horse fly, Tabanus fuscicostatus Hine (Diptera: Muscidae). Journal of Medical Entomology 45:109-114. Desquesnes, M & Dia, M.L. (2004) Mechanical transmission of Trypanosoma vivax in cattle by the African tabanid Atylotus fuscipes.
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The feeding of various Musca species of fly permits the contaminative transmission of nematode worms, for example Parafilaria bovicola, causing a nodular filariasis in cattle. Stomoxys species transmit several species of Trypanosoma protozoa to cattle, sheep and goats causing various types of trypanosomiasis. Haematobia horn- flies transmit nematode worms in the genus Stephanofilaria to the skin of cattle, causing stephanofilariasis, a suppurating dermatitis known as hump sore. Stomoxys flies transmit the bacterium Eperythrozoon ovis to sheep and this infection may lead to fever and anemia.
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Fresh blood on the labella may contaminate other hosts with pathogenic organisms. Many species of brachyceran flies such as the house-flies and blow-flies that do not feed on blood are also mechanical transmitters of pathogenic organisms by a contaminative route on their mouthparts used for sponging up wet nutritious secretions on skin of vertebrate animals. Usually the mechanical transmission of microbes by flies does not involve any developmental stage of the microorganism in the fly. However, some brachyceran flies, such as a group of species of genus Glossina, are important biological transmitters, not mechanical.
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In five to six days, cysticercoids emerge into the lumen of the small intestine, where they attach and mature. The direct lifecycle is doubtless a recent modification of the ancestral two-host lifecycle found in other species of hymenolepidids, because cysticercoids of H. nana can still develop normally within larval fleas and beetles. One reason for facultative nature of the lifecycle is that H. nana cysticercoids can develop at higher temperatures than can those of the other hymenolepidids. Direct contaminative infection by eggs is probably the most common route in human cases, but accidental ingestion of an infected grain beetle or flea cannot be ruled out.
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