The Bulletin of the Polish Academy of Sciences: Technical Sciences is published bimonthly by the Division IV Engineering Sciences of the Polish Academy of Sciences, since the beginning of the existence of the PAS in 1952. The journal is peer‐reviewed and is published both in printed and electronic form. It is established for the publication of original high quality papers from multidisciplinary Engineering sciences with the following topics preferred:
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| JCR Impact Factor 2019: | 1.385 |
| 5 Year Impact Factor 2019: | 1.310 |
| SCImago Journal Rank (SJR) 2019: | 0.361 |
| Source Normalized Impact per Paper (SNIP) 2019: | 1.005 |
| The Polish Ministry of Science and Higher Education 2019: | 100 points |
Abbreviated title: Bull. Pol. Ac.: Tech.
The fundamental concepts of nano and quantum systems of informatics have been presented. The nanotechnological processes taking place in biological systems of informatics have been discussed in terms of informatics. Presented analysis shows that the application of nanotechnologies in the technical informatic systems enables realization of processes for formation of products and objects with self-replication feature, similarly to the processes existing in biological informatic systems. It seems also that the quantum technologies enable further miniaturization of the technical systems of informatics as well as make the execution time of some computing processes like, e.g. Shor's and Grover's algorithms, shorter.
Abstract. In this paper we present a new class of neuro-fuzzy systems designed for system modelling and pattern classi.cation. Our approach is characterized by automatic determination of fuzzy inference in the process of learning. Moreover, we introduce several .exibility concepts in the design of neuro-fuzzy systems. The method presented in the paper is characterized by high accuracy which outperforms previous techniques applied for system modelling and pattern classi.cation.
In the present paper .nite-dimensional, stationary dynamical control systems described by semilinear ordinary di.erential state equations with multiple point delays in control are considered. In.nite-dimensional semilinear stationary dynamical control systems with single point delay in the control are also discussed. Using a generalized open mapping theorem, su.cient conditions for constrained local relative controllability are formulated and proved. It is generally assumed, that the values of admissible controls are in a convex and closed cone with vertex at zero. Some remarks and comments on the existing results for controllability of nonlinear dynamical systems are also presented.
In the paper, the problem of isothermic DNA sequencing by hybridization, without any errors in its input data, is presented and an exact polynomial-time algorithm solving the problem is described. The correctness of the algorithm is con.rmed by an enumerative proof.
Semiconductive - resistive sensors of toxic and explosive gases were fabricated from nanograins of SnO2 using thick-.lm technology. Sensitivity, selectivityand stabilityof sensors working in di.erent temperature depend on the way the tin dioxide and additives were prepared. A construction also plays an important role. The paper presents an attitude towards the evaluation of transport of electrical charges in semiconductive grain layer of SnO2, when dangerous gases appear in the surrounding atmosphere.
An overview of the important techniques for detection of optical radiation from the ultraviolet, through visible to infrared spectral regions is presented. At the beginning single-point devices are considered. Next, di.erent application circuits used in direct detection systems together with elucidation of the design of front-end circuits and discussion of their performance are presented. Third part of the paper is devoted to advanced techniques including coherent detection. Finally, the updated information devoted to readout of signals from detector arrays and focal plane arrays is included. It is shown that detector focal plane technology has revolutionized many kinds of imaging in the past 25 years.
This paper reviews research at the Institute of Materials Science and Engineering, Poznań University of Technology, on the synthesis of nanocrystalline hydride electrode materials. Nanocrystalline materials have been synthesized by mechanical alloying (MA) followed by annealing. Examples of the mate2-, LaNi5 and Mg2Ni-type phases. Details on the process used and the enhancement of properties due to the nanoscale structures are presented. The synthesized alloys were used as negative electrode materials for Ni-MH battery. The properties of hydrogen host materials can be modi?ed substantially by alloying to obtain the desired storage characteristics. For example, it was found that the respective replacement of Fe in TiFe by Ni and/or by Cr, Co, Mo improved not only the discharge capacity but also the cycle life of these electrodes. The hydrogen storage properties of nanocrystalline ZrV2- and LaNi5-type powders prepared by mechanical alloying and annealing show no big di?erence with those of melt casting (polycrystalline) alloys. On the other hand, a partial substitution of Mg by Mn orAl in Mg2Ni alloy leads to an increase in discharge capacity, at room temperature. Furthermore, the e?ect of the nickel and graphite coating on the structure of some nanocrystalline alloys and the electrodes characteristics were investigated. In the case of Mg2Ni-type alloy mechanical coating with graphite e?ectively reduced the degradation rate of the studied electrode materials. The combination of a nanocrystalline TiFe-, ZrV2- and LaNi5-type hydride electrodes and a nickel positive electrode to form a Ni-MH battery, has been successful.
It is shown that 2(n + 1) is the upper bound for the reachability index of the n-order positive 2D general models.
Editorial Board 2020-2022
Editor-in-Chief:
M.P. Kazmierkowski, Warsaw University of Technology
Honorary (Past) Editor-in Chief:
T. Kaczorek, Warsaw University of Technology
Deputy Editor-in-Chief:
A. Rogalski, Division IV Technical Sciences PAN
B. Błachowski, Institute of Fundamental Technological Research PAN
Board of Topical Co-editors:
Artificial and Computational Intelligence
S. Osowski and B. Sawicki, Warsaw University of Technology
Biomedical Engineering and Biotechnology
A. Liebert, Institute of Biocybernetics and Biomedical Engineering PAN
Civil Engineering
L. Czarnecki, Building Research Institute, ITB, Warsaw
Control, Robotics and Informatics
J. Klamka and A. Babiarz, Silesian Technical University
A. Borkowski, Institute of Fundamental Technological Research PAN
Electronics, Telecommunication and Optoelectronics
M. Mrozowski and A. Lamęcki, Gdansk University of Technology
Mechanical and Aeronautical Engineering, Thermodynamics
B. Błachowski and P. Korczyk, Institute of Fundamental Technological Research PAN
A. Tylikowski, Lukasiewicz Research Network - Institute of Mechanised Construction and Rock Mining, Warsaw
Materials Science and Nanotechnology
B. Major and P. Czaja, Institute of Metallurgy and Materials Science PAN
Power Systems and Power Electronics
M.P. Kazmierkowski, Warsaw University of Technology
International Editorial Advisory Board
R. Asthana, University of Wisconsin-Stout, Menomonie, USA
Xu Binshi, China Association of Plant Engineering, Beijing, P.R. China
F. Blaabjerg, Aalborg University, Denmark
C. Cecati, University of L’Aquila, Italy
A. Cichocki, RIKEN Institute, Tokyo, Japan
M. David, National Polytechnique de Toulouse, France
R. Ebner, Materials Centre Leoben, Leoben, Austria
E. Fornasini, University of Padova, Padova, Italy
L.G. Franquelo, University of Sevilla, Spain
M. Gad-el-Hak, Virginia Commonwealth University, Richmond, USA
M. Giersig, Free University of Berlin, Germany
D. van Gemert, Catholic University Leuven, KU Leuven, Belgium
L. Keviczky, Hungarian Academy of Sciences, Budapest, Hungary
V. Kučera, Czech Technical University in Prague, Prague, Czech Republic
R. Kennel, Technical University Munich, Germany
T.A. Kowalewski, Institute of Fundamental Technological Research PAN
E. Levi, Liverpool John Moore University, UK
G. Maier, Technical University of Milan, Milan, Italy
K.F. Man, City University of Hong Kong,
R. Maniewski, Institute of Biocybernetics and Biomedical Engineering PAN
H.A. Mang, Austrian Academy of Sciences, Vienna, Austria
H. Mihashi, Tohoku University, Aoba-ku, Sendai, Japan
S. Mindess, University of British Columbia, Vancouver, Canada
D.A. Mlynski, University of Karlsruhe, Karlsruhe, Germany
A.S. Nowak, University of Michigan, Ann Arbor, USA
K. Ohnishi, Keio University, Yokohama, Japan
A. Öberg, Linköping University, Linköping, Sweden
W. Pedrycz, University of Alberta, Canada
S. Przemieniecki, University of South Florida, Tampa, USA
M. Razeghi, Northwestern University, Evanston, USA
J. Rodriguez, University of Andres Bello, Santiago, Chile
J.V. Sloten, Catholic University Leuven, Leuven, Belgium
B.M. Wilamowski, University of Auburn, Alabama, USA
W. Włosiński , Warsaw University of Technology, Warsaw, Poland
A.L. Yarin, University of Illinois at Chicago, USA
Du Xiangwan, Chinese Academy of Engineering, China
J. Żurada, Department of Computer Engineering, University of Louisville, USA
Editorial Office:
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Wydział IV Nauk Technicznych PAN
Pl. Defilad 1
PL 00-901 Warszawa
Copy Editor:
Renata Podraza, e-mail: renata.podraza@pan.pl
Finance:
Ewa Trojanowska, ewa.trojanowska@pan.pl
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Bulletin of the Polish Academy of Sciences: Technical Sciences is an open access journal with all content available with no charge in full text version. The journal content is available under the licencse CC BY-NC-ND 4.0.
