Abstract Coastal surveillance video helps officials to obtain on-site visual information on maritime traffic situations, which benefits building up the transportation detection infrastructure. The previous ship methods focused detecting distant small ships in videos, with less attention paid task of from coastal video. To address this challenge, a novel framework is proposed detect images three typical situations consecutive steps. First Canny detector introduced determine potential edges...

Cd contamination in rice grains has become a topic of great concern because the high health risks associated with long-term consumption Cd-contaminated rice. Identification sources by scientific methods is important for controlling heavy metal pollution and protecting human health. Here, concentrations isotopic compositions plants (root, stem, leaf, grain) topsoil, possible (agricultural fertilizers, industrial dust, automobile exhaust) were analyzed using an instrument inductively coupled...

Ship detention decision plays a key role in port state control (PSC) inspection process, which is compactly related to navigation safety and maritime environmental protection. Many focuses were paid exploit intrinsic relationship among ship attributes (ship age, type, etc.), events typical deficiencies. It noted that many prediction frameworks implemented considering single type of factors regardless internal between crucial deficiencies attributes. To address the issue, we proposed support...

It is an undeniable fact that the digital economy and green financing are persistently gaining global attention as effective tools for achieving rapid economic growth development. However, environmental effects of these indicators just evolving, leaving research community with insufficient policies harnessing much-anticipated sustainability agenda. Hence, this provides first empirical evidence impacts eco-digitalization on sustainable environment in selected Middle East North African...

Special light zone is a new illumination technique that promises to improve the visual environment and traffic safety in extra-long tunnels. The purpose of this study identify how zones affect dynamic characteristics information perception drivers as they pass through tunnels on highways.Thirty-two subjects were recruited for study, fixation data recorded using eye movement tracking devices. A back-propagation artificial neural network was employed predict analyze influence special...

Objective: Driving behavior is the key feature for determining nature of traffic stream qualities and reflecting risk operating environments. However, evaluating driving accurately practically in continuous tunnels (tunnels with a space more than 250 m less 1000 m) still faces severe challenges due to complex conditions. The objective this study predict indicators determine different levels.Methods: naturalistic system equipped road environment data acquisition combined fixed-point test...

Suspended sediment concentration (SSC) is one of the most critical parameters in ocean ecological environment evaluation and it can be determined using color remote sensing (RS). The purpose this study to develop a model that provides reliable sensitive SSC retrieval RS data. Data were acquired for gathered from Gulf Bohai where levels are relatively low with an average value below 30 mg·L−1. indicates band area NIR Landsat5 TM images. A quadratic polynomial semi-analytical appears best...

Aiming at the optimization of public sports service quality, this study analyzes data deeply by constructing a supervised learning model. Firstly, theoretical framework is established. Secondly, technical constructed based on Finally, comprehensive performance model evaluated using dataset and practical application. The results show that when used to process data, its excellent. Specifically, model's accuracy recall in processing various types markedly exceed expectations, with reaching more...

Drivers gather traffic information primarily by means of their vision. Especially during complicated maneuvers, such as overtaking, they need to perceive a variety characteristics including the lateral and longitudinal distances with other vehicles, speed others lane occupancy, so on, avoid crashes. The primary object this study is examine appropriate visual search patterns overtaking maneuvers on freeways. We designed series driving simulating experiments in which type leading vehicle were...

How drivers’ visual characteristics change as they pass tunnels was studied. Firstly, nine test data at tunnel entrance and inside sections using eye movement tracking devices were recorded. Then the transfer function of BP artificial neural network employed to simulate analyze variation parameters. The relation models between parameters distance established. In analysis fixation point distributions, analytic coordinates fixations in field clustered obtain different area by utilizing dynamic...

This study aims to provide a current survey on the situation of freeway accidents in China. The results show that accident rate, death toll, injury and direct loss property are 3.2, 8.4, 7.2, 24.3 times average for an ordinary highway Freeway occur mainly Southern (20.77%) Central (20.2%) With detailed data from Guangdong Province, number freeways with 80 km/h design speed (29.58/km/103 pcu) was more than three 100 (9.54/km/103 120 (9.42/km/103 pcu). total rate increased monotonously...

Ice cover on pavement may reduce the road adhesion coefficient and increase crash risks, which might result in more traffic crashes. The primary factor utilized to assess whether wet is icy or not temperature. Therefore, forecasting temperature an effective method judge conditions improve safety. This paper proposes a combination model based extreme gradient boosting (XGBoost) long- short-term time-series network (LSTNet) predict Pavement meteorological data were collected for cities along...

Expressway tunnels are semi-enclosed structures characterized by monotonous alignment transitions and unique lighting environments, which can easily lead to drivers developing constrained irritable psychology. This may result in risky behaviors such as speeding fatigued driving. Previous research on tunnel driving behavior mainly focuses visual factors, neglecting the nonstationary time-series impacts of combined parameters Firstly, 30 were recruited carry out real test. Then, based...

Operating speed is a critical indicator for road alignment consistency design and safety evaluation. Although extensive studies have been conducted on operating prediction, few models can finish practical continuous prediction at each point along multilane highways. This study proposes novel method to estimate the highways in China from aspect of three-dimensional combination. data collected field experiments 304 different combination sections are detected by means Global Positioning System....