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T. Orzechowski
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ABSTRACT: Computer networks do make our life easier and probably better. The different kind of data (both useful and useless information) is available close to us. We don't need to know where it is physically located to use existing services. The only we need is to have the access to the global network. In this way we often can decrease the time we need to do following things such as doing shopping, checking news, exchanging our opinions, etc. Some years ago it took much more time... But making our life easier by increasing our time needed to arrange our life is not the most important thing, in my opinion. The really most important is to allow people who live in different countries to exchange the knowledge and offer distance learning. This kind of the use of the global network guarantees that people can be better educated and the development of science will accelerate.
Control and Communications, 2007. SIBCON '07. Siberian Conference on; 05/2007
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ABSTRACT: Computer analysis of voice isolated sounds may lead to identification of parameters correlated with neurological diseases. This paper presents results of preliminary research of voice pathological changes caused by dysarthria. The selection of linguistic material was characterized according to the place and manner of articulation in the phonetic system of Polish. Results of clinical examination allowed to determine simple markers of neurodegenerative diseases, which serves as a basis for construction of objective examination model.
Intelligent Signal Processing and Communication Systems, 2005. ISPACS 2005. Proceedings of 2005 International Symposium on; 01/2006
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T. Orzechowski
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ABSTRACT: Computer network enables us to have quick access to information. Unfortunately global network, in which everyone has the possibility to present his own thoughts freely, is becoming more like a global landfill site than a global distributed database. From early beginnings of Internet different steps have been taken to give its users the possibility to get to the information they are looking for. Usually these efforts come down to the creation of services that index the content, whereas searching takes place among already indexed keywords. Creating Web-sites and ontologically oriented services seems to be a very interesting and forward solution. This article focuses on a review of these issues.
Control and Communications, 2003. SIBCON 2003. The IEEE-Siberian Conference on; 11/2003
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T. Orzechowski
Electron Devices and Materials, 2002. Proceedings. 3rd Annual 2002 Siberian Russian Workshop on; 02/2002
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T. Orzechowski
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ABSTRACT: The main purpose of this article is to present concepts that could be used for the realization of efficient communication between "end-users" and a specific system that includes assembled information ("data-storage" systems). It also shows the advantages of using an agent approach in the realization of these tasks. It describes two different approaches with respect to the specific character of the Internet and intranets and of the "data-storage". All presented aspects can be taken into consideration during the analysis and planning of a structure for local and global networks (users, servers, location of data, character of databases)
Modern Communication Technologies, 2001. SIBCOM-2001. The IEEE-Siberian Workshop of Students and Young Researchers; 02/2001
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T. Orzechowski
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ABSTRACT: This article presents an investigation into the possibilities of using Voyager<sup>TM</sup> for efficient distributed programming. Voyager is a complex Java tool, made by Objectspace. It integrates different technologies such as RMI, CORBA, and mobile agent technology. During the work I have created an isolated local network, written a test application and databases and made some efficiency tests. I have compared two different kinds of communication between hosts (different and the same architectures) with databases based on standard ORB communication and by introducing mobility for objects. The purpose of the investigation is to find out if and when mobility is better than the classical client-server model for communication
Modern Communication Technologies, 2001. SIBCOM-2001. The IEEE-Siberian Workshop of Students and Young Researchers; 02/2001
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T. Orzechowski
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ABSTRACT: This article presents aspects of a designed and implemented
working system for data distribution among intranet databases. The
article presents analysis and description of the system, and of problems
and conclusions which occurred during designing, implementing and
testing the system. The main aim for creating the system was to assure
cohesion between data stored in databases located in scientific centres.
Communication among the databases is based on mobile agent technology
integrated with the CORBA standard. The system was designed taking into
consideration many different states, possible faults and conflict
situations, which can occur during common work. I did not impose any
restriction on database operators' work (timing of modification,
creation or deletion of records, switching off servers etc.) or on
operation of the network. This system was designed as fully independent
of all the above situations, so it is possible to integrate it with
different existing databases systems
Modern Communication Technologies, 2001. SIBCOM-2001. The IEEE-Siberian Workshop of Students and Young Researchers; 02/2001
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ABSTRACT: The authors address the problem of phase and amplitude stability of the RF pulse and present a technique for improving it in high-power, short-pulsed free-electron lasers and relativistic klystrons to a level that is acceptable for accelerator applications. They summarize the results of bench tests and computer simulations, and discuss a proposed high-power klystron experiment aimed at establishing the feasibility of the overall concept and the workability of the stabilization circuits.< >
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE; 06/1991
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T. Orzechowski,
E. Scharlemann,
B. Anderson,
V. Neil,
W. Fawley,
D. Prosnitz,
S. Yarema,
D. Hopkins,
A. Paul,
A. Sessler,
J. Wurtele
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ABSTRACT: High-power free electron lasers (FEL's) can be realized using induction linear accelerators as the source of the electron beam. These accelerators are currently capable of producing intense currents (10<sup>2</sup>-10<sup>4</sup>A) at moderately high energy (1-50 MeV). Experiments using a 500 A, 3.3 MeV beam have produced 80 MW of radiation at 34.6 GHz and are in good agreement with theoretical analysis. Future experiments include a high-gain, high-efficiency FEL operating at 10.6 μm using a 50 MeV beam.
IEEE Journal of Quantum Electronics 08/1985; · 1.88 Impact Factor
