Special issue : Measurement result in acid rain network by grass-roots activity, etc..Through experience in acid rain study grass-roots activity.
نویسندگان
چکیده
منابع مشابه
Grass roots chemistry: meta-tyrosine, an herbicidal nonprotein amino acid.
Fine fescue grasses displace neighboring plants by depositing large quantities of an aqueous phytotoxic root exudate in the soil rhizosphere. Via activity-guided fractionation, we have isolated and identified the nonprotein amino acid m-tyrosine as the major active component. m-Tyrosine is significantly more phytotoxic than its structural isomers o- and p-tyrosine. We show that m-tyrosine expos...
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Current ontology alignment practices adopt a centralized approach: the alignment task is carried out by a domain expert, possibly with the help of some ontology alignment tools. In a Peer-to-Peer environment, each end-user (peer) may explicitly or implicitly generate ontology alignments for their own purposes during its own use of the semantic data. This kind of end-user-generated ontology alig...
متن کاملGrass-roots Semantic Web Tools
One of the biggest challenges of the Semantic Web is to make its tools usable by ordinary users for grass-roots production and integration of semantic information. This paper introduces the ongoing research on this issue in our research group at the Information Sciences Institute. 1. RESEARCH OVERVIEW Despite years of intense work and research on the Semantic Web, it has not become a reality. O...
متن کاملActivity of earthworm in Latosol under simulated acid rain stress.
Acid rain is still an issue of environmental concerns. This study investigated the impacts of simulated acid rain (SAR) upon earthworm activity from the Latosol (acidic red soil). Laboratory experiment was performed by leaching the soil columns grown with earthworms (Eisenia fetida) at the SAR pH levels ranged from 2.0 to 6.5 over a 34-day period. Results showed that earthworms tended to escape...
متن کاملAcid Rain in Wisconsin
While pure rain is naturally slightly acidic, the higher level of acidity in acid rain makes it a threat to plant and aquatic life and to some manmade materials and structures. The slight natural acidity of pure rain is the result of carbon dioxide in the air dissolving in water to produce a weak carbonic acid solution. This natural acid in rainfall and snowmelt is partly responsible for the lo...
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ژورنال
عنوان ژورنال: Journal of Environmental Conservation Engineering
سال: 1993
ISSN: 1882-8590,0388-9459
DOI: 10.5956/jriet.22.714