the discharge of total suspended sediments (tss) and dissolved nutrients from watersheds into receiving waters is a serious problem when natural vegetation is degraded by agriculture or overgrazing. this study was conducted in soolegan watershed to investigate land use change and overgrazing effects on phosphorus loss (dissolved & particulate), particle size associated loss of p and effect of t...

To understand effects of soil microbes on soil biochemistry in alpine grassland ecosystems under environmental changes, we explored relationships between soil microbial diversity and soil total nitrogen, organic carbon, available nitrogen and phosphorus, soil microbial biomass and soil enzyme activities in alpine meadow, alpine steppe and cultivated grassland on the Qinghai-Tibetan plateau unde...

When the Akebono (EXOS-D) satellite passed through the plasmasphere, a series of lightning whistlers was observed by its analog wideband receiver (WBA). Recently, we developed an intelligent algorithm to detect lightning whistlers from WBA data. In this study, we analyzed two typical events representing the clear dispersion characteristics of lightning whistlers along the trajectory of Akebono....

Abstract. We perform a Why-Because Analysis (WBA) starting from the information in the Executive Summary of the U.S. DoD Aircraft Accident Investigation Board report on the shootdown of two U.S. Army Black Hawk transport helicopters by U.S.A.F. F-15 fighter aircraft over Northern Iraq on 14 April 1994, during Operation Provide Comfort. We compare with the effort of Snook to perform a similar an...

Sommario In questo lavoro viene proposto un agente intelligente denominato DL-WBA (Description Logic based Web Browsing Assistant Agent) per supportare un utente nelle sue attività di browsing sul Web. L’attività di ricerca di nuove sorgenti informative è basata sull’utilizzo di un profilo utente che registra gli interessi e le preferenze dell’utente. Ogniqualvolta l’utente effettua una query, ...