In accordance with the problem of the need for calculation formula of the straight wall flume flow in open channel by experiment, the method of thee boundary layer is proposed; Analysis with boundary layer displacement thickness is studied, and the energy equation, continuous equation and the theory and critical depth of flume flow coefficient, velocity coefficient is deduced using the boundary...

Many source and transport factors control P loss from agricultural landscapes; however, little information is available on how these factors are linked at a watershed scale. Thus, we investigated mechanisms controlling P release from soil and stream sediments in relation to storm and baseflow P concentrations at four flumes and in the channel of an agricultural watershed. Baseflow dissolved rea...

Requirements negotiation is quite an interesting, ongoing research area. Current requirements engineering models usually propose a negotiation process with similar methods and goals. Unfortunately, only a few have partial automatic support. In this paper, we revisit one of the most mature models, Boehm’s Win–Win model. Win–Win is a qualitative, process–oriented model so that it is specially sui...

Requirements negotiation in the domain of software development often runs into communication obstructions caused by the different worlds in which software engineers in software development firms and project managers in client firms exist. Toward a solution to situations of this kind, Grünbacher’s Easy Win-Win model presents a limited reformulation of the general win-win approach, which emphasis...