A hybrid global search algorithm is used to solve the nonlinear problem of calculating slip amplitude, rake, risetime, and rupture time on a finite fault. Thirty‐five strong motion velocity records are inverted by this method over frequency band from 0.1 1.0 Hz for Northridge earthquake. Four regions larger‐amplitude identified: one near hypocenter at depth 17 km, second west about same depth, third updip 10 fourth northwest. The results further show an initial fast with 2.8 3.0 km/s...

For point clusters, the conflict and crowding of map symbols is an inevitable problem during transition from large to small scales. The cartographic generalization involved in this as a spatial decision-making process usually related analysis context, choice abstraction operators, judgment resulting data quality. rules summarized by traditional methods require manual setting conditions or thresholds sometimes encounter special cases that make it difficult directly match certain integrate...

The cluster patterns of features in map space represent a comprehensive reflection individual feature geometric attributes and their spatial adjacency relationships. These also embody cognition results under the Gestalt principle. Describing non-linear as effective regular structures is one fundamental tasks deep learning for recognizing patterns. In this study, based on concept texture co-occurrence matrices from gray-scale images, we utilized Voronoi diagrams to construct tessellation...

On 28 September 2004, the M w 6.0 Parkfield earthquake became most densely recorded for near‐source ground‐motion. To infer kinematic nature of this event we invert strong‐motion data. The non‐linear global inversion yields slip amplitude, rake, average rupture velocity, and rise time over fault. By using subsets data, study dependence solutions on data input. inversions reveal that amplitude was less than 0.65 m outline two major areas slip; one laterally surrounds hypocenter,...

Long-term information of phytoplankton bloom is critical for assessing the processes driving blooms in lakes. A three-decade survey was completed Erhai Lake from 1987 to 2016 with Landsat imagery. modified three-band model using broad bands developed by comparing reflectance data imagery two field datasets. The applied archived (1987–2016) predict chlorophyll-a (Chl-a). Predicted ln(Chl-a) and observed measurements are significantly correlated (R2 = 0.70; RMSE 0.13 ug/L). Bloom maps...

One of the goals map generalization is to achieve real-time visualization massive entities while adapting zoom-in/zoom-out conditions. Unlike traditional generalization, this type scaling operation does not simplify data produce a final result; it only outputs temporary data. To meet current scale requirements, we insert simplification algorithm prior process Taking point as an example, study proposes novel selection method and optimizes entire algorithmic process, enabling quickly...

We present a new procedure to invert for kinematic source parameters on finite fault. On the basis of reciprocity relation Green's functions, we use newly developed fourth‐order viscoelastic finite‐difference algorithm calculate three‐dimensional (3‐D) functions (actually tractions) data unknown at nodes (or corners) subfaults. The within subfault area are allowed vary; this variation is calculated through bilinear interpolation four nodal quantities. have global nonlinear inversion that...

We present two spontaneous rupture models of the 2004 M w 6.0 Parkfield earthquake constrained by near‐source ground motions. start with a stress drop distribution calculated from kinematic slip distribution. Using linear slip‐weakening friction law, we utilize trial and error to obtain both conditions frictional parameters on fault that produce synthetics consistent records. The material contrast across San Andreas Fault is incorporated using different one‐dimensional velocity structures...

The purpose of this study is to verify the influence internet usage frequency on women's fertility intentions and examine mediating effects gender role attitudes, under that affects intentions, combined with specific Chinese cultural context. A cross-sectional secondary data analysis was conducted using a sample 3113 women childbearing age in General Social Survey 2017 (CGSS2017). results negative binomial regression model showed that, premise controlling individual characteristic variables,...

The representation and analysis of building patterns are critical for characterizing urban scenes making decisions in planning. evaluation is a difficult spatial problem that exhibits properties symbolization, homogeneity regularity. Open issues this field include the development approaches representing vector-based methods computing various pattern metrics. In image domain, there many recognition (e.g., texture analysis), but few corresponding solutions vector data. aim research to develop...

To determine the spatial–temporal variations and factors leading to vegetation recovery in loess hilly gully region of China, this study analyzed a two-decade trend variation cover based on normalized difference index (NDVI) data from 1998 2019 using Sen + MK test Hurst determined driving Geodetector model. The area was high southeast low northwest, with an overall increasing rate 0.0108/year. areas significant improvement accounted for 95.14%, persistent change 37.36%. Annual precipitation...

Abstract Nitric oxide (NO)‐generating materials are beneficial for vascular tissue engineering (VTE) scaffold because the produced NO would enhance endothelial cells viability while inhibit smooth muscle cell (SMC) proliferation and reduce platelet adhesion, resulting in ideal hemocompatibility endothelialization. Herein, poly(ε‐caprolactone) (PCL)/keratin biocomposite mats were first fabricated, followed by situ gold (Au) nanoparticles loading to afford PCL/keratin/AuNPs mats. These...

Keratin is a promising material for building drug carriers due to their biocompatibility, reduction sensitivity, and biodegradability. Herein, we aim develop acid glutathione (GSH) dual-responsive keratin-based with one-step strategy. Keratin/DOX complexes were first prepared by means of simple mixing approach, followed desolvation crosslinking prepare loaded nanoparticles (KDNPs). The as-prepared KDNPs showed negative-charged surface globular morphology the diameter ca. 129 nm. drug-loading...

Drainage network pattern recognition is a significant task with wide applications in geographic information mining, map cartography, water resources management, and urban planning. Accurate identification of spatial patterns river networks can help us understand phenomena, optimize cartographic quality, assess resource potential, provide scientific basis for development However, still faces challenges due to the complexity diversity networks. To address this issue, study proposes method...