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... The use of integrated flood models represents an approach of growing interest in the literature, being the hydrological and hydrodynamic flood processes described entirely within the two-dimensional (2D) hydrodynamic unsteady flow equations. Due to its ability in simulating complex spatial–temporal dependence of both the hydrodynamic and hydrologic responses of a catchment to rainfall events, this ...
... Mimicking the natural photosynthesis process to convert carbon dioxide into value-added chemicals is vital to solving both the climate crisis worldwide and the depletion of fossil fuels. Herein, we explore the synthesis of 2D FAPbBr₃ nanoplate combined with 2D Ti₃C₂ nanosheet to form a 2D/2D FAPbBr₃/Ti₃C₂ Schottky heterojunction using facile hot-injection and in-situ growth approaches. The Schottk ...
case studies; groundwater; heat transfer; infiltration rate; mathematical models; temperature
Abstract:
... Many studies have developed analytical models for describing the subsurface heat transfer to estimate the infiltration rate, that is, the vertical groundwater flux (VGF). These studies assumed that the VGF was constant in time to acquire mathematical tractability. However, the assumption generally violates the natural system and cannot delineate the transient behavior of the VGF. Such an illogical ...
air; equations; groundwater; groundwater flow; pollutants; river flow
Abstract:
... The present work derives analytical solutions of advection–dispersion equation (ADE) with temporal coefficients, and a pollutant’s point source moving linearly along the axis of a one-dimensional semi-infinite domain. The source is considered a varying and a uniform pulse source, respectively. The dispersion of pollutant originating from a varying pulse source may be supposed to occur along ground ...
... Notiomastodon platensis was an endemic South American proboscidean, which could reach about six tons and had a mixed feeder diet with predominance of C₄ grasses in Brazilian Intertropical Region (BIR). In the last decades, its feeding behavior has been rebuilt mainly through dental calculus, enamel microwear and stable isotope analyses. However, all these techniques allow us to know only punctual ...
antibacterial properties; bioavailability; biopolymers; drug delivery systems; nanofibers; pullulan; saliva; tetracycline; water solubility
Abstract:
... Tetracycline is a widely used antibiotic suffering from poor water solubility and low bioavailability. Here, hydroxypropyl-beta-cyclodextrin (HPβCD) was used to form inclusion complexes (IC) of tetracycline with 2:1 M ratio (CD:drug). Then, tetracycline-HPβCD-IC was mixed with pullulan- a non-toxic, water-soluble biopolymer - to form nanofibrous webs via electrospinning. The electrospinning of pul ...
biomimetics; carbon dioxide; coordination polymers; corals; ecological restoration; electron paramagnetic resonance spectroscopy; energy conversion; irradiation; ligands; light; liquid chromatography; mass spectrometry; ofloxacin; pH; photocatalysis; photocatalysts; photosynthesis; porphyrins; tetracycline; voltammetry
Abstract:
... The development of visible-light response photocatalysts with a high catalytic performance and long-term cyclic stability is of great significance in the field of energy and environmental protection. Inspired by photosynthesis, a novel three-dimensional coral zirconium-based metal organic framework (MOF) was synthesized using a double-ligand strategy. The optimal sample, Zr-TCPP-bpydc (2:1), (the ...
... Quantitatively assessing the feasibility of sprinkler irrigation at the regional level from the perspectives of water, food and economy could provide the basis for decision-making on how to implement sprinkler irrigation according to local conditions to alleviate the severe contradiction between groundwater shortages and food production. In this study, the distributed agro-hydrological model, afte ...
base flow; hydrograph; rain intensity; rivers; runoff; subsurface flow; water management; watersheds; Taiwan
Abstract:
... Taiwan is facing increasingly severe disasters, such as droughts and floods, which are affected by extreme weather. The assessment of hydrologic response characteristics provides helpful information for understanding catchment behavior and evaluating the ability of rivers to maintain streamflow during extended dry periods. Many studies have used the baseflow index to investigate the hydrologic res ...
... Climate change is perceived to be the main reason in affecting global rainfall patterns. The estimation of rainfall extremes based on historical data, hence, might undervalue the risk related to the design of water infrastructure system. Bangladesh, a tropical monsoon region, is highly vulnerable to climate change; however, little is investigated in the changes of extreme rainfall under climate ch ...
aquaculture; groundwater; models; riparian areas; solutes; urbanization; China
Abstract:
... Submarine groundwater discharge (SGD) is a predominant component of chemical fluxes in the solute budgets in coastal ecosystems because of its large flux and the corresponding concentrated constituents. A quantitative study regarding the mass balance model of ²²⁶Ra and ²²⁸Ra was performed to assess SGD and associated nutrient inputs in Xiangshan Bay (XSB), a typical Chinese aquaculture bay. Based ...
climate; probability; satellites; topography; typhoons; China
Abstract:
... Effective and accurate estimation of heavy precipitation from typhoons is critical for the early warning of hydrological extremes and disaster mitigation. Satellite-based precipitation products are widely used for various purposes, including supporting climate, hydrology, and severe weather event monitoring and research activities. In this study, the performance of Integrated Multi-SatellitE Retri ...
climate; data collection; hydrology; rivers; spring; water management; water supply; winter; South Korea
Abstract:
... Atmospheric rivers (ARs) have been recognized as the main mechanism of water supply to many coastal regions across the globe, and large fractions of extreme precipitation events have been attributed to them in coastal landforms. Though more than 70% boundary of South Korea is coastal, the research literature on ARs and their impacts on precipitation is scarce, if not absent. In this study, we aim ...
... Groundwater flooding can cause severe damages to homes, utilities, and infrastructure and yield significant economic and social costs. Numerical models are used to understand these events and are the basis to produce imagery products for risk management and communication. However, such maps are generally produced using forward model simulations, and most of the mapping products are still determini ...
Soil Moisture and Ocean Salinity satellite; algorithms; climate; ecology; energy; meteorology; porosity; probability; soil water; texture; time series analysis; China
Abstract:
... Soil moisture exhibits great spatio-temporal heterogeneity and plays a critical part in land surface energy and water cycles, being identified as a terrestrial essential climate variable. Thus, it is urgently needed in a wide variety of environmental processes such as hydrology, meteorology, agriculture, and ecology. Microwave remote sensing has the potential to provide near real-time soil moistur ...
arid lands; condensation (phase transition); ecosystems; mosses and liverworts; rain; sand; soil water balance; China
Abstract:
... Non-rainfall water originating from atmospheric and soil vapors is a major water source that supports dryland ecosystem functioning. The alpine sandy land ecosystem is fragile, where biological soil crusts develop widely on the soil surface and play a critical role in regulating surface hydrological processes. Yet, the effects of biological soil crusts on non-rainfall water in the alpine sandy lan ...
... The polysulfides shuttling and slow redox kinetics of sulfur-based cathodes have severely hindered the commercialization of lithium-sulfur (Li-S) batteries. Herein, distinctive three-dimensional microspheres composed of boron nitride (BN) nanosheets and reduced graphene oxide (rGO) were applied to act as efficient sulfur cathode hosts for the first time using in a spray-drying process. Using this ...
Małgorzata Kot; Natalia Gryczewska; Marcin Szymanek; Magdalena Moskal del-Hoyo; Marcin Szeliga; Claudio Berto; Michał Wojenka; Magdalena Krajcarz; Maciej T. Krajcarz; Krzysztof Wertz; Stanisław Fedorowicz; Elżbieta Jaskulska; Hanna Pilcicka-Ciura
... Although multiple Mesolithic cave sites have been recognised in Europe, the use of such sites by Early Holocene hunter gatherers was extremely scarce north of the Carpathians. Single Mesolithic artefacts have been found thus far only in six cave sites in Poland. The rich Early Mesolithic assemblage found in Bramka Rockshelter in southern Poland seems to be quite extraordinary in such a context. Th ...
... For the wide distribution and huge amount of water, a series of carbon-related water–rock interactions in groundwater recharge, runoff and discharge have an important impact on the global carbon cycle. However, the current research on carbon cycle of groundwater mainly focuses on its emission to surface water. There are few reports on the carbon balance of groundwater system. Hongjiannao basin was ...
... Accurate characterization of the spatial heterogeneity of hydraulic properties such as hydraulic conductivity (K) is essential for understanding groundwater flow and contaminant transport processes. Deep learning-based ensemble smoother methods have proven to be effective in estimating non-Gaussian K fields by assimilating hydrodynamic measurements. However, traditional hydrogeological investigati ...