Abstract In China, 9·5% of the landmass is karst terrain and that 47,000 km 2 located in semiarid regions. these regions aquifers feed many large springs within basins thousands square kilometres. Spring discharges reflect fluctuation ground water level variability storage basins. However, are highly heterogeneous monitoring data sparse Therefore, for sustainable utilization conservation it necessary to simulate spring flows acquire better understanding hydrological processes. The purpose...

This paper investigates optimal sampling times of drawdowns for the analysis hydraulic tomography (HT) survey. The investigation was carried out by analyzing spatial and temporal evolution cross‐correlations between head responses at an observation well transmissivity ( T ) storage coefficient S properties during a pumping test in homogeneous heterogeneous aquifers. shows that cross‐correlation values is limited to region aquifers: It reaches highest value near early time t m ), decays zero...

Weather and climate in a location are generally affected by global climatic phenomena. Monsoons teleconnections two phenomena that have been assessed specific regions for their correlations with regional precipitation. This study characterized the effects of monsoons on precipitation eight zones across China. Correlations between monthly from 1951 to 2013 each important monsoon indices [the Indian Summer Monsoon (ISM) East Asian (EASM)] major teleconnection [El Niño–Southern Oscillation...

Abstract Fracture zones and their connectivity in geologic media are of great importance to ground water resources management as well contamination prevention remediation. In this paper, we applied a recently developed hydraulic tomography (HT) technique an analysis algorithm (sequential successive linear estimator) synthetic fractured media. The application aims explore the potential utility for characterizing fracture zone distribution connectivity. Results investigation showed that using...

Background Previous studies demonstrated that primary open angle glaucoma (POAG) is associated with abnormal brain structure; however, little known about the changes in local synchronization of spontaneous activity. The main objective this study was to investigate activity patients POAG using regional homogeneity (ReHo) analysis based on resting state functional magnetic resonance imaging (rs-fMRI). Methodology/Principal Findings Thirty-nine and forty-one age- gender- matched healthy...

Abstract Hydraulic tomography (HT) has emerged as a potentially viable method for mapping fractures in geologic media demonstrated by recent studies. However, most of the studies adopted equivalent porous (EPM) models to generate and invert hydraulic interference test data HT. While these assign significant different properties matrix, they may not fully capture discrete nature rocks. As result, HT performance have been overrated. To explore this issue, study employed fracture network (DFN)...

To explore the usefulness of whole-lesion histogram analysis apparent diffusion coefficient (ADC) derived from reduced field-of-view (r-FOV) diffusion-weighted imaging (DWI) in differentiating malignant and benign thyroid nodules stratifying papillary cancer (PTC) with aggressive histological features.This Institutional Review Board-approved, retrospective study included 93 patients 101 pathologically proven nodules. All underwent preoperative r-FOV DWI at 3T. The ADC assessments were...

Suffusion is an important mechanism that leads to the failure of hydraulic structures such as dams and levees. To evaluate onset conditions, i.e., critical gradient suffusion, a set laboratory experiments conducted explore internal erosion behaviors under upward seepage conditions. During these experiments, particle in soils with different size distributions dry densities investigated. Based on results low (LCHG) high (HCHG) are defined corresponding local moving global loss fine particles,...

Abstract Mapping the spatiotemporal patterns of soil moisture within heterogeneous landscapes is important for resource management and understanding hydrological processes. A critical challenge in this mapping comparing remotely sensed or situ observations from areas with different vegetation cover but subject to same precipitation regime. We address by wavelet analysis multiyear profiles adjacent contrasting plant functional types (grassland, woodland, encroached) precipitation. The reveals...

Suffusion is one of the mechanisms initiating internal erosion in levees and dams. To estimate risks seepage erosion, understanding mechanism suffusion under different stress conditions crucial. With a stress-controlled apparatus, experiments are conduced, which induced by step-wise increasing hydraulic gradients isotropic anisotropic conditions. Based on results, low critical gradient (LCHG) high (HCHG) defined, corresponding to local global mobilisations fine particles, respectively. It...

Abstract Niangziguan Spring complex is the largest karst spring in North China. We investigate hydrological processes by using Morlet wavelet transform analysis and cross based on monthly precipitation from 1958 to 2010 discharge 2009. From coefficients of Springs Basin, we find that are characterized multi‐scale features time domain, energy distribution signal highly irregular across scales. Although eventually becomes infiltrating propagating through formations, signals attenuated. The...

This study aimed to examine the role of miR-221 in inflammatory response and apoptosis neuronal cells after spinal cord ischemia/reperfusion (I/R) injury. Blood samples were obtained from 20 I/R patients that healthy individuals used as a control. AGE1.HN SY-SH-5Y cell lines subjected oxygen–glucose deprivation (OGD) stress experiments. Real-time PCR western blot evaluate expression miR-221, tumor necrosis factor-α, TNFAIP2. TUNEL assay analyzed apoptosis. had lower serum levels than...

Over past decades, extensive groundwater development in karst aquifers has led to significant declines levels and spring discharges. While the recent implementation of sustainable aquifer policies appears have lessened declining trend discharge, many aspects remain be explored. This paper applied two spectral-based graph neural networks (GNN) models ChebNet convolutional (GCN) for hydrological processes by considering correlations among precipitation, human impacts. approach captures spatial...

Groundwater from karst aquifers supplies freshwater for 25% of the world population. Worldwidely, groundwater level has been descending, spring discharge declined, and some springs have dried up due to climate changes anthropogenic activities. Spring as a proxy, can reflects state hydrological processes. Thus, simulation is vital in water resources development, utilization management.The forming processes basin include surface convergence, dictated by terrains, diffusion, controlled...