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Search results for: TOPOLOGY MODIFICATIONS
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On the use of instantaneous complex frequency for analysis and modification of simple sounds
PublicationW pracy przedstawiono możliwości wykorzystania zespolonej pulsacji chwilowej do analizy i modyfikacji prostych dźwięków. Opisywany algorytm składa się z dwóch kroków: bifaktoryzacji sygnału na obwiednię minimalnofazową i fazor dodatnipskrętny, a następnie estymacja i modyfikacja zespolonej pulsacji chwilowej obu czynników faktoryzacji.
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Modification of titanium dioxide with platinum ions and clusters: application in photocatalysis
PublicationW celu polepszenia właściwości fotokatalitycznych, TiO2 (komercyjny-P25 oraz syntezowany metoda zol-żel) był domieszkowany za pomocą jonów lub klasterów [Pt3(CO)6]62- platyny. Własności fizyczne fotokatalizatorów były badane za pomocą elektronowego mikroskopu transmisyjnego (TEM), dyfraktometru rentgenowskiego (XRD) oraz analizatora powierzchni właściwej (BET). Dyfuzyjna spektrometria odbiciowa (DRS) została zastosowana w celu...
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Hydrothermal, microwave and mechanochemical modification of amorphous zirconium phosphate structure
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Modification of Tin Phosphate Nanoporous Structure under Hydrothermal Conditions
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A few words on the modification of the ruling in the part concerning compensatory damages
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Modification of SiC based nanorods via a hydrogenated annealing process
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Oxidative Modification of Proteins in Pediatric Cystic Fibrosis with Bacterial Infections
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Computer-assisted enzyme engineering by modification of tunnels, channels and gates
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METHODS OF THE MODIFICATION OF VEGETABLE OILS IN ORDER TO OBTAIN BASE OILS
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Proposition of aerial laser survey point cloud methodology modification
PublicationW rozdziale monografii autorzy sugerują nowe rozwiązanie - modyfikację metodologii analizy chmury punktów pozyskanej ze skaningu lotniczego w technologii LIDAR. Modyfikacja polega na poprzedzeniu procesu filtracji realizowanego w ETAPIE PRZETWARZANIA WSTĘPNEGO, algorytmem optymalizacji [Błaszczak 2006, Błaszczak, Kamiński 2007]. Głównym celem badań była kontrola wiarygodności i efektywności metodologii opracowania chmury punktów...
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Modification of titanium dioxide towards photocatalytic activity in visible light
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Multi-objective optimization for assessment of topological modification in UWB antennas
PublicationThis paper addresses an issue of systematic and rigorous assessment of effects of topological modifications on the performance of compact UWB antennas. Application of fast surrogate-assisted multi-objective optimization procedures allows us for obtaining, in a practically acceptable timeframe, a set of designs representing the best possible trade-offs between conflicting objectives (here, antenna size minimization and reduction...
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Automatic prosodic modification in a Text-To-Speech synthesizer of Polish language
PublicationPrzedstawiono system syntezy mowy polskiej z funkcją automatycznej modyfikacji prozodii wypowiedzi. Opisane zostały metody automatycznego wyznaczania akcentu i intonacji wypowiedzi. Przedstawiono zastosowanie algorytmów przetwarzania sygnału mowy w procesie kształtowania prozodii. Omówiono wpływ zastosowanych modyfikacji na naturalność brzmienia syntezowanego sygnału. Zastosowana metoda oparta jest na algorytmie TD-PSOLA. Opracowany...
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Literature and Theology
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Modern Theology
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Theology Today
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Theology and Science
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BLACK THEOLOGY
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Political Theology
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Theology & Sexuality
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Philosophy and Theology
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Practical Theology
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Comparison of various speech time-scale modificartion methods
PublicationThe objective of this work is to investigate the influence of the different time-scale modification (TSM) methods on the quality of the speech stretched up using the designed non-uniform real-time speech time-scale modification algorithm (NU-RTSM). The algorithm provides a combination of the typical TSM algorithm with the vowels, consonants, stutter, transients and silence detectors. Based on the information about the content and...
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Computation of cubical homology, cohomology, and (co)homological operations via chain contraction
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System animacji szkieletów o dowolnej topologii oparty na systemie cząstek
PublicationTworzenie animacji postaci opartych na szkielecie jest jednym z kluczowych problemów w grafice komputerowej. W niniejszym artykule proponowany jest system tworzenia proceduralnych animacji szkieletów o dowolnej topologii wymagający na wejściu określenia ruchu jedynie niewielkiego zbioru punktów kontrolnych. Wykorzystanie algorytmu Verleta zapewnia wysoką wydajność, a odpowiedni automatyczny dobór dodatkowego zestawu warunków pozwala...
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Porównywanie topologii drzew i sieci filogenetycznych z wykorzystaniem metryki błędu
PublicationPodstawowymi modelami historii ewolucji organizmów są drzewa i sieci filogenetyczne. Ponieważ algorytmy konstrukcji filogenów zwracają różne wyniki dla tych samych danych wejściowych, powstaje problem oceny, który filogen najlepiej reprezentuje historię ewolucji dla zadanego zbioru gatunków. W pracy podano definicję metryki dla przestrzeni drzew o n liściach, zwanej metryką błędu. Dokonano przeglądu miar odległości na przestrzeni...
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Modifications of the heat source model in numerical analyses of the metal-cored arc welding process
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Estimation of the expected effects of different surface modifications on mechanical, chemical and biological behaviour of endoprostheses
PublicationPrzedstawiono koncepcję nowej endoprotezy o szczególnie wysokiej odporności na zużycie i pękanie. Koncepcja zakada wytwarzanie wieloetapową obróbkę powierzchniową kompozytu metalowo-ceramicznego.
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Mass Spectrometry-Based Analysis of DNA Modifications: Potential Applications in Basic Research and Clinic
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Endogenous oxidative DNA base modifications analysed with repair enzymes and GC/MS technique
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Epigenetic modifications and NF-κB pathway activity in Cu,Zn-SOD-deficient mice
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A study of jet impingement cooling enhancement by concave and convex heat sink shape modifications
PublicationThe rising demand for efficient cooling technologies is a strong driver of extensive research in this area. This trend is particularly strong in turbines and microprocessors technology. Presented study is focused on the jet impingement cooling concept, which is used in various configurations for many years. The potential of the heat sink shape modification is not yet fully explored. Available literature suggests that average Nusselt...
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Time-scale modification of speech signals for supporting hearing impaired schoolchildren
PublicationA study of time scale modification algorithmsapplied to hearing impaired schoolchildren supporting ispresented. Variety of algorithms are considered, namely:overlap and add, two variations of synchronized overlapand add, and the phase vocoder. Their effectiveness as wellas real-time processing capabilities are examined.
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Low-temperature air plasma modification of chitosan-coated PEEK biomaterials
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Modification of Ground Tire Rubber—Promising Approach for Development of Green Composites
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Modification of carbon-coated TiO2 by iron to increase adsorptivity and photoactivity for phenol
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Synthesis and modification of reduced graphene oxide aerogels for biofuel cell applications
PublicationWe have carried out the preparation of reduced graphene oxide aerogels using eco-friendly method that is based on the Hummers method of graphite oxidation without the use of NaNO3 that produces toxic gases. To obtain a porous 3D structure of reduced graphene oxide, we performed the hydrothermal reduction at elevated temperature. We also prepared the rGO aerogel/CNT composite using multiwalled carbon nanotubes as linkers. The rGO...
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The Chemistry of Mycophenolic Acid-Synthesis and Modifictions Towards Desired Biological Activity
PublicationDokonano przeglądu literatury chemicznej na temat metod syntezy kwasu mykofenolowego oraz jego pochodnych, a także zależności pomiędzy ich strukturą i aktywnością biologiczną.
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Effect of carbon nanotube modification on poly (butylene terephthalate)-based composites
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Surface modification of polypropylene membrane by helium plasma treatment for membrane distillation
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The effect of thermal modification on the quality of the milled surface of beech and pine wood
PublicationThe article deals with the effect of thermal modification on the quality of the created surface during milling on CNC milling cutters. The quality of the created surface is evaluated based on surface roughness, specifically its roughness parameter Ra. The observed surface is created by a shank cutter with a diameter of 20 mm and three cutting edges in a spiral at a standard speed of 18,000. min-1. The article compares thermally...
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Modification of Titanium (IV) Dioxide with Small Silver Nanoparticles: Application in Photocatalysis
PublicationThe surface of commercial TiO2 compounds (P25 and ST01) has been modified with Ag nanoparticles induced by radiolysis. On P25, the Ag nanoclusters are very small (1−2 nm) and homogeneous in size while on ST01, two populations of nanoparticles are obtained, small nanoparticles (1−2 nm) and larger ones (mean diameter 7 to 12 nm depending on the silver loading). The photocatalytic properties of Ag-modified TiO2 have been studied for...
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Bulk-Surface Modification of Nanoparticles for Developing Highly-Crosslinked Polymer Nanocomposites
PublicationSurface modification of nanoparticles with functional molecules has become a routine method to compensate for diffusion-controlled crosslinking of thermoset polymer composites at late stages of crosslinking, while bulk modification has not carefully been discussed. In this work, a highly-crosslinked model polymer nanocomposite based on epoxy and surface-bulk functionalized magnetic nanoparticles (MNPs) was developed. MNPs were...
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Modification of Ground Tire Rubber—Promising Approach for Development of Green Composites
PublicationGround tire rubber (GTR) was mechano-chemically modified using a road bitumen 100/150 and two types of organic peroxides: di-(2-tert-butyl-peroxyisopropyl)-benzene (BIB) and dicumyl peroxide (DCP). The impact of used additives on reactive sintering efficiency and physico-mechanical properties of modified GTR was investigated using oscillating disc rheometer measurements, followed by tensile tests and swelling behavior studies....
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Experimental examination and modification of chip suction system in circular sawing machine
PublicationThe article presents the results of experimental examination of the wood chip suction system in the existing sliding table saw before and after its modifi cation. The studies focused on the extraction hood of the mentioned system. The methodical experimental research of the pressure distribution inside the hood during wood chip removal for the selected rotational speed of saw blades of 3500 and 6000 min-1 with a diameter of 300...
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Modification of thermal and rheological characteristics of bitumen by waste PET/GTR blends
PublicationWaste poly(ethylene terephthalate) (wPET)/ground tire rubber (GTR) blends with variable compositions were applied as low-cost modifiers into bitumen and their performance has been evaluated via morphological, thermal and rheological analyses. Depending on the weight ratio of wPET/GTR, dispersion of single/composite domains of waste polymers in the bitumen has promoted the interaction between bitumen and blend components. Fourier...
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A simple modification of PCR thermal profile applied to evade persisting contamination
PublicationThe polymerase chain reaction (PCR), one of the most commonly applied methods of diagnostics and molecular biology has a frustrating downside known as the false positive signal or contamination. Several solutions to avoid and to eliminate PCR contaminations have been worked out to date but the implementation of these solutions to laboratory practice may be laborious and time consuming. A simple approach to circumvent the problem...
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Computational Topology Workshop
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Current Zoology
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CONTRIBUTIONS TO ZOOLOGY
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