Urban areas are vulnerable to flooding as a result of climate change and rapid urbanization thus flood losses becoming increasingly severe. Low impact development (LID) measures storm management technique designed for controlling runoff in urban areas, which is critical solving hazard. Therefore, this study developed an exploratory simulation–optimization framework the spatial arrangement LID m...

Sunspot groups are constantly evolving, causing flare eruption under the action of solar atmospheric magnetic field. After flare, ejected X-rays cause electron concentration Earth’s ionosphere to increase and equivalent reflection height decrease. We studied correlation between a series flares erupted by sunspot VLF signal propagation. Using NOAA activity area data released GOES satellite, we c...

Optical turbulence strongly affects different types of optoelectronic and adaptive optics systems. Systematic direct measurements optical profiles [Cn2(h)] are lacking for many climates seasons, particularly in marine environments, because it is impractical expensive to deploy instrumentation. Here, a backpropagation neural network optimized using genetic algorithm (GA-BP) developed estimate at...

Rapid urbanization has brought many problems, including housing shortages, traffic congestion, air pollution, and lack of public space. To solve these the United Nations proposed “The 2030 Agenda for Sustainable Development”, which contains 17 Development Goals covering three dimensions: economy, society, environment. Among them, Goal 11 (SDG11), “Make cities human settlements inclusive, safe, ...

Abstract In the context of climate change, coastal cities are at increased risk extreme precipitation and sea level rise, their interaction will aggravate floods. Understanding potential change compound floods is valuable for flood reduction. this study, an integrated approach coupling hydrological model copula-based design storm tides was proposed to assess in a city—Haikou, China. The copula ...

Purpose: To investigate the efficacy and safety of mycophenolate mofetil (MMF) combined with lowdose steroids in treatment pediatric systemic lupus erythematosus (pSLE).Methods: A total 76 children were diagnosed admitted SLE, nephritis (LN) type IV diffuse proliferative glomerulonephritis at Hainan Women Children’s Medical Center, Haikou, China from March 2017 to December 2018, had their clini...

With the gradual emergence of separation and dislocation urban jobs-housing space, rational planning space has become core issue national land-spatial planning. To study existing relationship between workspaces living spaces, a new method to identify is proposed, which not only considers static spatial distribution public facilities but also identifies by analyzing real mobility characteristics...