Broadband active sonars (15-150 kHz) capture morphological characteristics of underwater objects and are used by dolphins to recognize targets in cluttered environments, motivating their use in underwater mine countermeasure applications. However, the data from broadband sonars is very high-dimensional (typically 1400), requiring classification algorithms that can operate in these spaces with l...

In order to cope with multi-dimensional mine disasters in deep mines, enhance the adaptability of open tunnel-boring machine (TBM) actual working face environment, and improve excavation speed TBM, based on project Gaojiapu Coal Mine Zhengtong Industry, Shaanxi Province, this paper comprehensively considers difficulties encountered by TBM process improves system its supporting equipment. The re...

This paper describes a simple method for estimating haul road defect positions from alongside roads. It is a method that is cheap and easy to implement, needing only a minimal amount of field equipment and training. Observers are required to estimate the bearing and distance to a defect, and to record their location using a GPS receiver. All further processing is automated and can be done entir...

Short-term production plans are the basis for operational mine production schedules. They concentrate on making long-term mine plans operationally feasible. Furthermore, some variables such as ore grade and tonnage govern mine production systems and cause uncertainty in the supply of raw materials to the mills. Due to the quality variation of material, short-term production optimization is an u...

With the increase in urbanization and energy consumption, PM2.5 has become a major pollutant. This paper investigates the impact of road patterns on PM2.5 pollution in Beijing, focusing on two questions: Do road patterns significantly affect PM2.5 concentrations? How do road patterns affect PM2.5 concentrations? A land-use regression model (LUR model) is used to quantify the associations betwee...

Predicting the degree of burial of mines in soft sediments is one of the main concerns of Naval Mine CounterMeasures (MCM) operations. This is a difficult problem to solve due to uncertainties and variability of the sediment parameters (i.e., density and shear strength) and of the mine state at contact with the seafloor (i.e., vertical and horizontal velocity, angular rotation rate, and pitch a...

Travels within the city are done in different ways, by vehicle or on foot. Thus, inevitably, a part of the travel is always done on foot. Since intersections as traffic nodes are determinant factor in transportation network capacity, any disruption in them leads to severe reduction in network capacity. Unfortunately, pedestrian behavior has received little attention in Iran. While this is a ver...