Vectors

A method is presented for the recovery of optical flow. The key idea is that the local spatial structure of optical flow, with the exception of surface boundaries, is usually rather coherent and can thus be appropriately approximated by a linear vector field. According to the proposed method, the optical flow components and their first order spatial derivatives are computed

New software security vulnerabilities are discovered on almost daily basis and it is vital to be able to identify and resolve them as early as possible. Fortunately, many software vulnerabilities are recurring or very similar, thus, one could effectively detect and fix a vulnerability in a system by consulting the similar vulnerabilities and fixes from other systems. In this paper, we propose, SecureSync, an automatic approach to detect and provide suggested resolutions for recurring software vulnerabilities on multiple systems ...

Malaria is caused by infection with protozoan parasites belonging to the genus Plasmodium transmitted by female Anopheles species mosquitoes. Our understanding of the malaria parasites begins in 1880 with the discovery of the parasites in the blood of malaria patients by Alphonse Laveran. The sexual stages in the blood were discovered by William MacCallum in birds infected with a related haematozoan, Haemoproteus columbae, in 1897 and the whole of the transmission cycle in culicine mosquitoes and birds infected with Plasmodium relictum was elucidated by Ronald Ross in 1897. In 1898 the Italian malariologists, Giovanni Battista Grassi, Amico Bignami, Giuseppe Bastianelli, Angelo Celli, Camillo Golgi and Ettore Marchiafava demonstrated conclusively that human malaria was also transmitted by mosquitoes, in this case anophelines. The discovery that malaria parasites developed in the liver before entering the blood stream was made by Henry Shortt and Cyril Garnham in 1948 and the final s...

Mathematics knows a several ways the multiplication of two, three or more vectors , all explained here. The two multiplying of the first group are the scalar and vector product – named according to the results, or the dot and a cross product of the vector – called according to the operation signs. We will consider them mainly geometrically, together with the 'communicator multiplication' – my private from the same group. Other multiplications have more vectors and are defined by the preceding ones, aggregating the factors as additional vectors. The text is an easier excerpt of the book of Quantum Mechanics, which this article is a promotion. 1 Scalar product The scalar product of two vectors, two oriented segments, a and b is a scalar a ⋅ b = ab cos γ, (1) where a = a and b = b are the intensities (lengths) of these vectors, and γ = ∠(a, b) is the angle between them. In other words, the scalar product is the product of the length of the first vector and the length of the projection of the second vector at first, as seen in the figure 1. In the wider theory of vectors, the scalar product is often called internal product, and dot product too.

... sucessful, it has two main drawbacks: heavy computational load and warping of forgeries. ... of the dynamical system at time , the function represents the state change of dynamical ... generated from input handwriting time series (test sample) and enrollment handwriting time series ...

At the point of common coupling (PCC), the summation of two harmonic voltage vectors at same frequency is only certain if their amplitudes and phase angles are well known. Therefore, there are many cases where the phase angle difference between harmonic voltage vectors is unknown. In practice, for example, in calculating the steady state rating of the a.c. passive harmonic filter, arithmetic summation method is often used in determining maximal harmonic level. This summation law is very conservative as it may result in high cost of equipment ratings. Actually, a compromise should be made in taking into account the equipment safety and the risk of overrating as well as excessive costs. Based on uniform distribution of difference in phase angles, the paper provides an algorithm to calculate the probability upon which the magnitude of summation vector of two harmonic voltages may exceed a given value. On the basis of the probability and the given harmonic value, harmonic summation can be assessed. This may also result in a recommendation of another harmonic summation method for the standard IEC/TR 61000-3-6.

ARTICLE INFO Detection of the Distorted Fingerprints major causes to non-match in fingerprint at time matching fingerprint sample. This problem causes all the recognition of fingerprint algorithm application. It is complicated in negative type matching application. That means watch list and duplication application. In such way criminal user porpusly hide his fingerprint identification. In this paper we use the K-means, Canny-edge algorithm to detect and rectify distorted fingerprint image. Distortion and rectification is view as a regression problem where user input skein distorted fingerprint output is distortion field. To solve this problem K-means & Canny-edge fingerprint algorithm is use.

In this paper, we describe a training environment based on multi-functional software system called “Trainer 1149”. It provides simulation and demonstration functionality for learning, research, and development related to IEEE 1149.1 Boundary Scan (BS) standard. The software supports both the analytic and synthetic learning process. Trainer 1149 is the main component of a recent goJTAG initiative that aims at creating of an open-source platform for learning and working with BS. Trainer 1149 provides a cozy graphical design and simulation environment of BS-enabled chips and non-BS clusters. It is also possible to simulate the behaviour of various interconnect faults and inspect them using interactive tools. Using a convenient low-cost USB-JTAG cable, one can test real defects in real hardware. The system is implemented using multi-platform Java environment and distributed as an open-source freeware. Such combination of features is unique for public domain BS software.

Mechanics: Oldest of the Physical Sciences: Archimedes (287-212 BC): Principles of Lever and Buoyancy. Mechanics is a branch of the physical sciences that is concerned with the state of rest or motion of bodies subjected to the action of forces.
Statics: Deals with equilibrium of bodies under action of forces (bodies may be either at rest or move with a constant velocity).
Dynamics: Deals with motion of bodies (accelerated motion)