Abstract This study introduces four rock–soil characteristics factors, that is, Lithology, Rock Structure, Infiltration, and Weathering, which based on the properties of rock formations, to predict Landslide Susceptibility Mapping (LSM) in Three Gorges Reservoir Area from Zigui Badong. Logistic regression, artificial neural network, support vector machine is used LSM modeling. The consists three main steps. In first step, these factors are combined with 11 basic form different factor...

The Zigui-Badong section of the Three Gorges Reservoir area is used as research in this study to impact unbalanced sample sets on Landslide Susceptibility Mapping (LSM) and determine ratio interval with best performance for different models. We employ 12 LSM factors, five training ratios (1:1, 1:2, 1:4, 1:8, 1:16), C5.0, Support Vector Machine (SVM), Logistic Regression (LR), one-dimensional Convolution Neural Network (CNN) models are obtain landslide susceptibility index zoning area,...

Abstract In this paper, we present an image acquisition device for building surface. To position the and generate unfolded view of building, camera needs to be orientated determine camera’s pose before acquisition. propose automatic orientation method based on target point recognition. Traditional methods often have low success rates poor accuracy. Our divides task into three steps: detecting prism its centre sequentially, finally completing orientation. address challenge center points, add...

Landslides pose a great threat to the safety of people’s lives and property within disaster areas. In this study, Zigui Badong section Three Gorges Reservoir is used as study area, land use (LU), change (LUC) band math (band) factors from 2016–2020 along with six selected commonly are form factor combination (LUFC), (LUCFC) (BMFC). An artificial neural network (ANN), support vector machine (SVM) convolutional (CNN) chosen three models for landslide susceptibility mapping (LSM). The results...

Robotic total stations have been widely used in continuous automatic monitoring of dam deformations. In this regard, accuracy is an important factor affecting deformation analysis. First the displacements calculation methods for with are presented, and corresponding mean square error formulas derived. Then errors caused by atmospheric refraction, two correction described. Simulations were conducted to compare displacement calculated through different methods. It indicated that difference...

Landslides are geological disasters affected by a variety of factors that have the characteristics strong destructive nature and rapid development cause major harm to safety people’s lives property within scope disaster. Excessive landslide susceptibility mapping (LSM) can reduce accuracy LSM results not conducive researchers finding key factors. In this study, with Three Gorges Reservoir area Padang section as an example, frequency ratio (FR), index entropy (IOE), Relief-F algorithm,...

Crack detection based on deep learning is an advanced technology, and many scholars have proposed methods for the segmentation of pavement cracks. However, due to difference image specifications crack characteristics, some existing are not effective in detecting cracks containment. To quickly detect accurately extract quantitative information, this paper proposes a model, called MA_CrackNet, analysis algorithm. MA_CrackNet end-to-end model multiscale fusions that achieve pixel-level...

UAVs are becoming increasingly used in the field of structural health monitoring, and position information them during tasks is crucial. However, complex scenarios such as bridges high-rise buildings, GNSS positioning method cannot obtain positions UAV all time due to blockage satellite signals multi-path effects. This paper proposes a real-time address issue combining total station. The first locate when it not line sight station, coordinates transmitted station for blind tracking through...

Abstract This study proposes a novel method for water level measurement of reservoir dams by utilizing the image sensor robotic total station rather than requiring staff gauge during displacements monitoring. The is first aimed at waterline manually and an captured telescope coaxial camera to obtain initial elevation equation. In periodic stage, zenith angle adjusted according predicted result take pictures, extracted based on parameters equation through processing technologies. verified,...

Abstract Higher-level cognition depends on visual working memory (VWM), the ability of our brain to maintain and manipulate internal representations images that are no longer presented us. An important question in this field is whether VWM represented a sensory or nonsensory manner. Progress has been made understanding features be remembered, but representational nature memory-irrelevant unclear. Here, we used dual-task paradigm investigate how when interact with concurrent information. In...

With the rapid development of economy in China, requirement for railway passenger and cargo transportation becomes higher higher. Increasing speed developing heavy-haul can effectively improve capacity railway. The rail steels with ability abrasion resistance urgent. Two kinds rails, i.e., 880 MPa-grade 980 steels, were laid on line 500 m short radius curve. service performances tested continuously tracked analyzed during operation total 22.5 million tons loads. Macro morphology, light band...

The authors would like to make the following corrections about published paper [...]

This paper proposes boundary parallel-like index (BPI) to describe shape features for high-resolution remote sensing image classification. Parallel-like is found be a discriminating clue which can reveal the regularity of segmented objects. Therefore, multi-orientation distance projections were constructed measure and quantify information. The ability was tested using original ground objects, respectively. proposed BPI showed better discrimination both data than other features, especially...

To understand dissolved oxygen depletion in estuaries and coasts, it is essential to distinguish the contributions of diffusion-mediated sedimentary respiration (SOR) water column (WCR). For present study, near-bottom waters were sampled May, July, October 2019 Dinghai Bay, China, reveal mechanism shallow nearshore (3-20 m). Field observations isotopes endmember incubations conducted. Dissolved concentration ([O 2 ]) δ 18 O ranged from 157 241 μM -1.34 3.41‰, respectively. Except for one...