In the later stage of the production and development of HB Oilfield, the oil reservoir fluid type is complex.With the development of multi-layer system.The reservoir variables Tea between different types of oil and gas reservoirs are large, and the relationship between oil and water is complex.Most main oil layers have high water drives, and the ac

Introduction.The most important tendency of modern development is the process of post-industrial transformation of the economy, which influences the tourist and hotel and restaurant industry is intended to compensate partly the relative monotony of labour activity, which is connected with its limited specialization and subordination to the social d

When a transmedia vehicle moves across water and air media, the free surface has a great influence on its airfoil, which brings challenges to the overall design and navigation control.To investigate the hydrodynamic characteristics of an airfoil approaching the free surface from the far field in the air and water, numerical simulation models of thi

BackgroundEarly in the pandemic, transmission risk from asymptomatic infection was unclear, making it imperative to monitor infection in workplace settings.Further, data on SARS-CoV-2 seroprevalence within university populations has been limited.MethodsWe performed a longitudinal study of University research employees on campus July-December 2020.W

The Japanese giant salamander, Andrias japonicus, is an iconic but declining species of PROTEIN UNFLAVOURED aquatic amphibian.A population within the Nawa River Basin of Tottori Prefecture persists but faces two significant threats.The first major threat is waterway obstructions, in the form of dams, weirs, and concrete embankments, which severely