Journal
of the University of Chemical Technology and Metallurgy, XXXV, 2000
 |
MATHEMATICS, AUTOMATION, INFORMATICS
|
FILE COMPUTER SYSTEMS
R. Bachvarski, A. Gadavelov
OPERATIONAL COMPUTER SYSTEMS AND HARD DISKS SPACE
A. Gadavelov, R. Bachvarski
GENERAL ALGORITHM SCHEME OF
OPTIMIZATION OF DYNAMIC SYSTEMS WITH TERMINAL CONSTRAINTS IN A CLASS OF
INERTIAL CONTROLS. SUPPORT CORRECTION
L. Dimitrova
TERMINATION PROCEDURE OF THE
ALGORITHMOF OPTIMIZATION OF DYNAMIC SYSTEMS WITH TERMINAL CONSTRAINTS IN
A CLASS OF INERTIAL CONTROLS
L. Dimitrova
R. Bachvarski, A. Gadavelov
|
University
of Chemical Technology and Metallurgy,
Kl. Ohridski, 1756 Sofia, Bulgaria
gadavelov@uctm.edu
|
|
This article
offers useful advice about partitioning and choosing a file system for a hard
disk formatting. The survey gives an idea about the most appropriate file system
for hard disk formatting in terms of the highlighted features of each of them,
having into consideration the designate limitations of the file systems.
For systems with more than
one hard disk- the chosen file system during formatting of the disks as one
or more logical devices, is decisive in some cases, for the local accessibility
of the boot operating system to them. In some cases of an upgrade-
like adding disks containing information, it is generally necessary to archive
it and reformat the partition, in order to gain an access to them.
The survey is performed on
computer systems with more than one hard disk, split into several logical devices,
formatted with different file systems, with products made by the Microsoft Corporation.
Keywords: NTFS, FAT, hard disk, format, system.
A. Gadavelov, R. Bachvarski
|
University
of Chemical Technology and Metallurgy,
Kl.
Ohridski, 1756 Sofia, Bulgaria
gadavelov@uctm.edu
|
|
This article
gives some information about the
dependency of the size of the HDD and the popular applied software products
which are installed on it. It offers useful advice for a right choice of the necessary volume in connection the investment
for up-grading of the systems to be an optimal one.
Keywords: HDD,
hard disk, upgrade, system.
L.
Dimitrova
|
University
of Chemical Technology and Metallurgy,
Kl.
Ohridski, 1756 Sofia, Bulgaria
lazarina@uctm.edu
|
|
The
following problem of the terminal control theory
(0) 
is
considered
In
[2] the maximum principle and the e - optimum criterion are proved.
The
algorithm is based on the method of consecutive increments of optimal domains
from the available controls. Besides, the control solving the problem is derived
for a finite number of integration of the direct and conjugated problem [4].
The total number of integration does not depend on the desired precision of
the result but only on the structure of the optimal control.
The
basis of the algorithm consists of three main procedures:
I. Support correction;
II. Termination procedure;
III. The formation and
analysis of the solution of the support problem.
In the present work the first
basic procedure of the algorithm - the support correction - is described. The
aim of the correction is to move some of the defects of the support 
, which are
not present in the optimal support.
Keywords: Optimization, dynamic systems, inertial controls,
maximum principle, support, support control,
L. Dimitrova
|
University
of Chemical Technology and Metallurgy,
Kl.
Ohridski, 1756 Sofia, Bulgaria
lazarina@uctm.edu
|
|
The following
problem of the terminal control theory
(0) 
is
considered in the present paper.
In
[2] the maximum principle and the e - optimum criterion are proved.
In the present work the second basic procedure - the termination procedure -
is described.
After
successful correction of the support of problem (0) we can proceed to termination
procedure. The aim of this procedure is the formation of a support and control
that satisfy with predefined precision the constraints of problem (0) and the
optimization criterion [2]. In the termination procedure, by means of Newton’s
method, a special system of non-linear equations is solved. This system represents
the following conditions:
(1)
smoothness of the quasi-control at the beginning of the support intervals;
(2)
optimization conditions (
) at the ends
of the support intervals;
(3) zero discrepancy of the terminal constraints of quasi-control.
Keywords: optimization, dynamic
systems, inertial controls, support, support control, maximum principle, termination
procedure.