This paper considers the problem of attaining computer systems and applications programs that are both highly secure and highly reliable. It contrasts two current alternative approaches, one remedial, the other preventive. A remedial approach is outlined based on a classification of software security violations suggested by Bisbey, Carlstedt, and Hollingworth at lSI. This remedial analysis is t...

Systems of polynomial equations appear throughout mathematics, science, and engineering, but solving them is widely considered to be part of numerical analysis, not computer algebra or algebraic geometry. Due to rounding errors, though, purely numerical methods often are unstable in unpredictable ways. They usually don’t find all solutions and frequently have problems with overdetermined system...

Residue Number System (RNS) is a non-weighted number system for integer number arithmetic, which is based on the residues of a number to a certain set of numbers called module set. The main characteristics and advantage of residue number system is reducing carry propagation in calculations. The elimination of carry propagation leads to the possibility of maximizing parallel processing and reduc...

this paper proposes an efficient tracking method for velocity control of an electro-hydraulic servo system (ehss) in the presence of flow nonlinearities and internal friction. the tracking method controller is a kind of feedback error learning structure. in the proposed method, the feedback error learning (fel) algorithm is used to control the velocity. there is no need to compute the system ja...

production planning is performed through diverse methods according to the type of the system it is structured upon. one of the most important steps before production planning is to determine which system best fits the firm, and how the facilities should be designed. both job-shop and group-technology systems have their own pros and cons, each of which is suitable to a specific kind of factory. ...

in many active noise control (anc) applications, an online secondary pathmodelling method that uses a white noise as a training signal is required. this paperproposes a new feedback anc system. here we modified both the fxlms and thevss-lms algorithms to raised noise attenuation and modelling accuracy for theoverall system. the proposed algorithm stops injection of the white noise at theoptimum...

This paper presents both, the design and the development of a monitoring and control system via web for a closed microalgae crop and the results that were gotten using the strain Haematococcus pluvialis. The research was done at Sabana University (Colombia) and it aims to quantify the kinetic growth associated to the increment of biomass and the development of red pigment inside the cells when ...

Blood pressure (BP) is one of the most common vital signs related to cardiovascular diseases. BP traditionally measured by mercury, aneroid, or digital sphygmomanometers; however, these approaches are restrictive, inconvenient, and need a cuff be attached directly patient. Therefore, it clinically important develop an innovative system that can accurately measure without for any direct physical...