this paper investigates the multi-band ofdm (mb-ofdm) based physical (phy) layer proposal for ieee 802.15.3a working group on short-range high data-rate ultra-wide-band (uwb) communications. an overview of the mb-ofdm phy layer architecture with its various parameters is presented and the optimal choice of critical parameters is discussed. next, we derive the theoretical un-coded bit error rate...

this paper presents an e-ring shaped printed monopole antenna for uwb applications with dual notched bands performance. in order to generate single frequency band notch function, we applied a u-ring shaped monopole antenna, and by inserting a rectangular ring in the centre of it an e-ring shaped radiating patch created and a dual band-notch function can be achieved. the measured bandwidth of th...

The cytological features including chromosome numbers and detailed measurements of 46 populations ten Achillea species ( A. aleppica, bibersteinii, eriophora, filipendula, millefolium, nobilis, pachycephala, tenuifolia, vermicularis, wilhelmsii ) were reported from Iran. Sample plants seeds collected diff erent geographical regions Total length, long/ short arm ratio, centromere index, total fo...

M. Dudek, AGH University of Science and Technology, Krakow, Faculty of Management, Poland In the blast-furnace production, raw materials may account for approx. 50 % of the pig-iron manufacture costs. Therefore, any, even small, saving in the sphere of raw material purchasing will translate into the reduction in the cost of the pig-iron manufacture. The selection of appropriate supply sources a...

Ultraviolet photodissociation (UVPD) mass spectrometry is employed to investigate the structure of holo-myoglobin as well as its apo form transferred to the gas phase by native electrospray. UVPD provided insight into the stability of native structural elements of holo-myoglobin. The fragmentation yields from UVPD showed the greatest overall correlation with B-factors generated from the crystal...

S. Rzadkosz, J. Zych, A. Garbacz-Klempka, J. Kozana, M. Piękoś, J. Kolczyk, Ł. Jamrozowicz, AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland M. Kranc, Foundry Research Institute, Krakow, Poland T. Stolarczyk, Copper Museum in Legnica, Poland This paper presents research results in the field of casting technology of copper and copper alloys using the inves...

Wojciech Grega Piotr Bania Department of Automatics, AGH University of Science and Technology, 30-059 Kraków, Al. Mickiewicza 30, Poland [email protected], [email protected] ABSTRACT This paper deals with a supervisory control strategy which enables to optimize heat energy distribution between buildings with discontinuous operation. The core principle of the energy saving algorithm is based on...

♣ This work was supported by AGH Technical University grant no. 10.10.120.39 ABSTRACT The image compression by means of wavelet technique is considered in this paper. The proposed solution takes advantages of the current observer eye position rather than the image content. The noninvasive eye-pursuit system determines the zone of observer’s interest and sends the information back to the image c...

B. Grabowska, M. Holtzer, R. Dańko, M. Górny, A. Bobrowski, E. Olejnik; AGH University of Science and Technology, Faculty of Foundry Engineering, Krakow, Poland Possibilities of cross-linking of new polymer binders from the BioCo group, their hardening in moulding sands at the application of cross-linking agents both physical and chemical are presented. Their thermal stability was determined. I...

For convenience of outpatients, mammographies of outpatients are often taken after the injection of a radionuclide. In this study, we investigated the effects of gamma rays emitted by a patient onto imaging plates (IPs). We used a flat container filled with (99m)Tc solution as a planar source to irradiate gamma rays onto IPs. We changed irradiation times on each IP, and took radiographies of an...