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RISEmpirical Research on Ecological Efficiency of Coal Resource–Dependent Cities in China
Publisher: American Society of Civil Engineers
Abstract: Environmental pollution has now become a potential problem that restricts stable economic growth. As an effective way to measure sustainable development, ecological efficiency can comprehensively reflect the actual level ...
Geoelectric Field Response to Seepage in Sand and Clay Formations
Publisher: American Society of Civil Engineers
Abstract: An understanding of groundwater flow in soil and rocks is necessary for civil and environmental engineering. Real-time monitoring of groundwater flow is a relatively new research area. This paper presents an experimental ...
Experimental Study on the Compressive Strength and AE Characteristics of High-Temperature–Treated and LN<sub>2</sub>-Cooled Sandstone
Publisher: ASCE
Abstract: Liquid nitrogen (LN2) fracturing is beneficial to the development and utilization of geothermal energy. In this paper, red sandstone was heated from room temperature to different temperatures (25°C–800°C) and then cooled ...
Optimal Sizing of an Air Vessel in a Long-Distance Water-Supply Pumping System Using the SQP Method
Publisher: American Society of Civil Engineers
Abstract: By optimizing the sizing of air vessels, not only is the damage from water hammer prevented, but also the cost of water hammer protection systems is minimized. This paper presents a numerical simulation of an air vessel ...
InPlane QuasiStatic Crushing Behaviors of a Novel Reentrant CombinedWall Honeycomb
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The innovative design of microstructure topology is of great significance to improve the energy absorption performance of honeycombs. In this paper, by embedding a hexagonal substructure in each inclined wall of the ...
A New Multiaxial Fatigue Life Prediction Model Under Proportional and Nonproportional Loading
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Based on the critical plane approach, the drawbacks of the Wang–Brown (WB) model are analyzed. It is discovered that the normal strain excursion in the WB model cannot account for the additional ...
Efficient Quasi-Two-Dimensional Water Hammer Model on a Characteristic Grid
Publisher: American Society of Civil Engineers
Abstract: This note proposes a new quasi-two-dimensional (quasi-2D) numerical scheme for simulating a water hammer that significantly reduces the computational burden compared to two existing quasi-2D schemes, as numerically ...
Doppler Radar Analysis of Triple Eyewalls in Typhoon Usagi (2013)
Publisher: American Meteorological Society
Abstract: trong tropical cyclones often undergo eyewall replacement cycles that are accompanied by concentric eyewalls and/or rapid intensity changes while the secondary eyewall contracts radially inward and eventually replaces the ...
Global Distributions of Tropospheric and Stratospheric Gravity Wave Momentum Fluxes Resolved by the 9-km ECMWF Experiments
Publisher: American Meteorological Society
Abstract: Based on 20-day control forecasts by the 9-km Integrated Forecasting System (IFS) at the European Centre for Medium-Range Weather Forecasts (ECMWF) for selected periods of summer and winter events, this study investigates ...
Failure of Frozen Sandstone under Uniaxial Compression with Interpretation of Pressure Melting of Pore Ice from Electrical Resistance
Publisher: American Society of Civil Engineers
Abstract: Understanding the failure process in frozen porous rock is of great importance to both geomorphology research and engineering design in cold regions. The mechanical behavior of frozen porous rock has its own particularity ...