Bridges, overpasses, and road construction sites with reduced vertical clearance lead to collision threats from crossing vehicles that exceed their due inherent height or improper loading. These accidents can pose slight severe physical damage property and, primarily, involved individuals in these affected components (i.e., collateral around above an overpass bridge). Furthermore, the resulting...

A robust combiner for hash functions takes two candidate implementations and constructs a hash function which is secure as long as at least one of the candidates is secure. So far, hash function combiners only aim at preserving a single property such as collision-resistance or pseudorandomness. However, when hash functions are used in protocols like TLS they are often required to provide severa...

Evaluating Automated Anti-Icing Technology to Reduce Traffic Collisions Reducing fatalities, injuries, and property damage related to traffic collisions is a priority for road safety agencies. Traffic collisions result in more than 2,200 fatalities and 173,000 injuries each year on Canadian roads. Inclement weather is a contributing factor in traffic crashes for approximately 21 percent of the ...

The problem of collision detection of functionally defined objects based on perturbation functions for constant time is considered. The collision detection algorithm of different complexity during a constant time is discussed. Recursive object space subdivision algorithm is proposed. In the perturbation function representation, collision detection becomes trivial due to the inside/outside prope...

We investigate the post-quantum security of hash functions based on the sponge construction. A crucial property for hash functions in the post-quantum setting is the collapsing property (a strengthening of collision-resistance). We show that the sponge construction is collapsing (and in consequence quantum collision-resistant) under suitable assumptions about the underlying block function. In p...

A new conservative discrete ordinate method for nonlinear model kinetic equations is proposed. The conservation property with respect to the collision integral is achieved by satisfying at the discrete level approximation conditions used in deriving the model collision integrals. Additionally to the conservation property, the method ensures the correct approximation of the heat uxes. Numerical ...

We investigate the post-quantum security of hash functions based on the sponge construction. A crucial property for hash functions in the post-quantum setting is the collapsing property (a strengthening of collision-resistance). We show that the sponge construction is collapsing (and in consequence quantum collision-resistant) under suitable assumptions about the underlying block function. In p...

In the n-body problem, a collision singularity occurs when the position of two or more bodies coincide. By understanding the dynamics of collision motion in the regularized setting, a better understanding of the dynamics of near-collision motion is achieved. In this paper, we show that any double collision of the planar equilateral restricted four-body problem can be regularized by using a Birk...

Collision simulation of river-sea ship is accomplished based on nonlinear finite element method. Firstly, we discuss the development of collision analysis methods including theoretical methods, empirical formula method, experimental techniques and numerical analysis methods, and introduce the Central Difference Method adopted in the collision simulation. Then, model of ship structure and rigid ...