Search results for: computer v

Simulating malware with MAlSim
PublicationThis paper describes MAlSim  Mobile Agent Malware Simulator  a mobile agent framework developed to address one of the most important problems related to the simulation of attacks against information systems, i.e. the lack of adequate tools for reproducing behaviour of malicious software (malware). The framework can be deployed over the network of an arbitrary information system and it aims at simulating behaviour of each instance...

European Conference on Computer Vision
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Asian Conference on Computer Vision
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International Conference on Computer Vision Systems
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IEEE Workshop on Applications of Computer Vision
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IEEE International Conference on Computer Vision
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IEEE Conference on Computer Vision and Pattern Recognition
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International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision
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Joint Conference on Computer Vision, Imaging and Computer Graphics Theory and Applications (GRAPP and VISAPP combined from 2008)
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Computer simulation of current voltage response of elektrocatalytic sensor.Optoelectronic and Electronic Sensors V.
PublicationW pracy przedstawiono wyniki symulacji komputerowej działania czujnika elektrokatalitycznego. Do badań wykorzystano program D. Gossera opierający się na metodzie różnic skończonych.

The conducted immunity test of a power supply unit in accordance with EMC standards
Open Research DataThe dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radiofrequency fields. The immunity tests were carried out on the mains cable of the DF1723003TC NDN power supply. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 150 kHz to 230 MHz are...

The radiated immunity test of an astable multivibrator at overnormative field strengths
Open Research DataThe dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator. Tests of immunity of electronic systems to radiated radio frequency (RF) disturbances in the frequency range from 80 MHz to 1 GHz were performed...

GreedyMAXtype Algorithms for the Maximum Independent Set Problem
PublicationA maximum independent set problem for a simple graph G = (V,E) is to find the largest subset of pairwise nonadjacent vertices. The problem is known to be NPhard and it is also hard to approximate. Within this article we introduce a nonnegative integer valued functionp defined on the vertex set V(G) and called a potential function of agraph G, while P(G) = max{vinV(G) p(v)} is called a potential of G. For any graph P(G) <= D(G),...

Network and OS Support for Digital A/V
Conferences 
The conducted immunity test of an AC adaptor in accordance with EMC standards
Open Research DataThe dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radiofrequency fields. The immunity tests were carried out on the mains cable of the ac adaptor PHILIPS DC power supply SBC 6654. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 150 kHz...

Andrzej Klimczuk
PeopleAndrzej Klimczuk, PhD, a sociologist and public policy expert, assistant professor in the Department of Public Policy of the Collegium of SocioEconomics at the SGH Warsaw School of Economics, Poland. Editor and correspondent of publications about computer and video games in the years 20022009. In 20112013 Vice President of the Foundation's Laboratory Research and Social Action “SocLab.” External expert of institutions such as...

The conducted immunity test of a power supply unit in the frequency range from 19 MHz to 26 MHz for the RF voltage level of 3 V
Open Research DataThe dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radiofrequency fields. The immunity tests were carried out on the mains cable of the DF1723003TC NDN power supply unit. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 19 MHz to 26 MHz were...

The conducted immunity test of a power supply unit in the frequency range from 19 MHz to 26 MHz for the RF voltage level of 1 V
Open Research DataThe dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radiofrequency fields. The immunity tests were carried out on the mains cable of the DF1723003TC NDN power supply unit. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 19 MHz to 26 MHz were...

The radiated immunity test of an astable multivibrator for various supply voltages
Open Research DataThe dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator supplied from a power supply with an output voltage of 6V and 7.5 V. Tests of immunity of electronic systems to radiated radio frequency (RF)...

The standard radiated immunity test of an astable multivibrator at a normative field strength
Open Research DataThe dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator. Tests of immunity of electronic systems to radiated radio frequency (RF) disturbances in the frequency range from 80 MHz to 1 GHz are performed...

Modelbased testing for execution algorithms in the simulation of cyberphysical systems
PublicationThe understanding of simulation semantics of a hybrid system is a challenge for computational engineers as it requires expertise in computer science, engineering, numerical methods, and mathematics at once. The testing methods for the execution of a simulation are being researched but not yet applied on the industrial level. Consequently, the semantics of the simulation becomes a critical artifact in the system development process....

Clearing directed subgraphs by mobile agents
PublicationWe study several problems of clearing subgraphs by mobile agents in digraphs. The agents can move only along directed walks of a digraph and, depending on the variant, their initial positions may be prespecified. In general, for a given subset S of vertices of a digraph D and a positive integer k, the objective is to determine whether there is a subgraph H=(V,A) of D such that (a) S is a subset of V, (b) H is the union of k directed...

The conducted immunity test of a power supply unit in the frequency range from 19 MHz to 26 MHz for the RF voltage level of 10 V
Open Research DataThe dataset presents a result of measurements that are a part of immunity tests to conducted disturbances, induced by radiofrequency fields. The immunity tests were carried out on the mains cable of the DF1723003TC NDN power supply unit. Tests of immunity of electronic systems to conducted disturbances in the frequency range from 19 MHz to 26 MHz were...

2bondage in graphs
PublicationA 2dominating set of a graph G=(V,E) is a set D of vertices of G such that every vertex of V(G)D has at least two neighbors in D. The 2domination number of a graph G, denoted by gamma_2(G), is the minimum cardinality of a 2dominating set of G. The 2bondage number of G, denoted by b_2(G), is the minimum cardinality among all sets of edges E' subseteq E such that gamma_2(GE') > gamma_2(G). If for every E' subseteq E we have...

Finding smallwidth connected path decompositions in polynomial time
PublicationA connected path decomposition of a simple graph $G$ is a path decomposition $(X_1,\ldots,X_l)$ such that the subgraph of $G$ induced by $X_1\cup\cdots\cup X_i$ is connected for each $i\in\{1,\ldots,l\}$. The connected pathwidth of $G$ is then the minimum width over all connected path decompositions of $G$. We prove that for each fixed $k$, the connected pathwidth of any input graph can be computed in polynomialtime. This answers...

The radiated immunity test of an astable multivibrator in the frequency range from 100 MHz to 300 MHz
Open Research DataThe dataset presents a result of measurements that are a part of electromagnetic field immunity tests. The radiated, radio frequency, immunity tests were carried out for a typical astable electronic multivibrator. Tests of immunity of electronic systems to radiated radio frequency (RF) disturbances in the frequency range from 100 MHz to 300 MHz were...

Multiple CuesBased Robust Visual Object Tracking Method
PublicationVisual object tracking is still considered a challenging task in computer vision research society. The object of interest undergoes significant appearance changes because of illumination variation, deformation, motion blur, background clutter, and occlusion. Kernelized correlation filter (KCF) based tracking schemes have shown good performance in recent years. The accuracy and robustness of these trackers can be further enhanced...

Daylight Appraisal Classes For Achitecture Students A Survey Combined With A Practical Assessment For Educational Training Recommendations
PublicationThe main objectives of this article are: (i) to present the relations between architecture students' subjective assessment of daylight in classrooms and the objective evaluation of daylit conditions using daylight simulations tools, (ii) to formulate guidelines and recommendations on daylight appraisal methods and tools which may be useful in architectural training. The methodology used includes an evaluation of the results of...

Marek Czachor prof. dr hab.
People 
Voltage fluctuations on the main switchgear of the industrial power system supplying the rolling mill motors
Open Research DataThe dataset presents the voltage waveforms on the bus bars of the main switchgear of the industrial power network for the supply of rolling mills. The data was recorded during an experiment whose purpose was to determine a level of shortterm and longterm flicker caused by voltage fluctuations. In the virtual application of flickermeter, a hardware...

Graph security testing
PublicationSet S ⊂ V is called secure set iff ∀ X ⊂ S  N [ X ] ∩ S  ≥  N ( X ) \ S  [3]. That means that every subset of a secure set has at least as many friends (neighbour vertices in S) as enemies (neighbour vertices outside S) and will be defended in case of attack. Problem of determining if given set is secure is co −NP complete, there is no efficient algorithm solving it [3]. Property testers are algorithms that distinguish inputs...

On the partition dimension of trees
PublicationGiven an ordered partition Π={P1,P2,…,Pt} of the vertex set V of a connected graph G=(V,E), the partition representation of a vertex v∈V with respect to the partition Π is the vector r(vΠ)=(d(v,P1),d(v,P2),…,d(v,Pt)), where d(v,Pi) represents the distance between the vertex vv and the set Pi. A partition Π of V is a resolving partition of G if different vertices of G have different partition representations, i.e., for every...

Secure Italian domination in graphs
PublicationAn Italian dominating function (IDF) on a graph G is a function f:V(G)→{0,1,2} such that for every vertex v with f(v)=0, the total weight of f assigned to the neighbours of v is at least two, i.e., ∑u∈NG(v)f(u)≥2. For any function f:V(G)→{0,1,2} and any pair of adjacent vertices with f(v)=0 and u with f(u)>0, the function fu→v is defined by fu→v(v)=1, fu→v(u)=f(u)−1 and fu→v(x)=f(x) whenever x∈V(G)∖{u,v}. A secure Italian dominating...

New potential functions for greedy independence and coloring
PublicationA potential function $f_G$ of a finite, simple and undirected graph $G=(V,E)$ is an arbitrary function $f_G : V(G) \rightarrow \mathbb{N}_0$ that assigns a nonnegative integer to every vertex of a graph $G$. In this paper we define the iterative process of computing the step potential function $q_G$ such that $q_G(v)\leq d_G(v)$ for all $v\in V(G)$. We use this function in the development of new CaroWeitype and Brookstype...

Wojciech Chrzanowski dr hab. inż.
PeopleWojciech Chrzanowski was born in 1952 in Toruń. He completed his studies in Chemical Technology in 1975, getting his MSc in Inorganic Technology (specialty: AntiCorrosion Protection) At the Faculty of Chemistry, Gdańsk University of Technology (with distinction). Later this year he was employed in the Department of Analytical Chemistry of then Institute of Chemical Engineering and Measuring Techniques, initially as a technical...

Mohammad Hossein Ghaemi dr inż.
PeopleMohammad Hossein Ghaemi Mohammad Hossein Ghaemi (1967), is an Assistant Professor at Faculty of Ocean Engineering and Ship Technology, Department of Automatics and Energy Engineering. He studied first at Tehran University, where was graduated in the field of Mechanical Engineering (Solid Mechanics) and then received his MSc degree in the field of Ocean Engineering (Ship Power Plants) and PhD degree in the field of Building and...

Weakly connected Roman domination in graphs
PublicationA Roman dominating function on a graph G=(V,E) is defined to be a function f :V → {0,1,2} satisfying the condition that every vertex u for which f(u) = 0 is adjacent to at least one vertex v for which f(v)=2. A dominating set D⊆V is a weakly connected dominating set of G if the graph (V,E∩(D×V)) is connected. We define a weakly connected Roman dominating function on a graph G to be a Roman dominating function such that the set...

The convex domination subdivision number of a graph
PublicationLet G = (V;E) be a simple graph. A set D\subset V is a dominating set of G if every vertex in V  D has at least one neighbor in D. The distance d_G(u, v) between two vertices u and v is the length of a shortest (u, v)path in G. An (u, v)path of length d_G(u; v) is called an (u, v)geodesic. A set X\subset V is convex in G if vertices from all (a, b)geodesics belong to X for any two vertices a, b \in X. A set X is a convex dominating...

Corrosion Inhibition of Aluminium Alloy AA6063T5 by Vanadates: Local Surface Chemical Events Elucidated by Confocal Raman MicroSpectroscopy
PublicationChemical interactions between aqueous vanadium species and aluminium alloy AA6063T5 were investigated in vanadatecontaining NaCl solutions. Confocal Raman and Xray photoelectron spectroscopy experiments were utilised to gain insight into the mechanism of corrosion inhibition by vanadates. A greenishgrey coloured surface layer, consisting of V+4 and V+5 polymerized species, was seen to form on the alloy surface, especially on...

PROVOZNÍ ZKUŠENOSTI TROLEJBUSOVÝCH POHONŮ NAPÁJENÝCH POMOCÍ AKUMULÁTORŮ
PublicationV článku představeno vývoj trolejbusové dopravy v Polsku v průběhu poslední 10 let. Vývoj ten byl se uskutečnil díky podpoře prostředků z Evropské unie.

Bee Bread Exhibits Higher Antimicrobial Potential Compared to Bee Pollen
PublicationThis study aimed at investigation of the antimicrobial potential of ethanolic extracts of bee bread (BB) and bee pollen (BP) and suspensions of these products in MHB (Mueller Hinton Broth). We covered 30 samples of BP and 19 samples of BB harvested in Polish apiaries. Slightly lower activity was observed against Gramnegative bacteria compared to Grampositive staphylococci. BB extracts exhibited higher inhibitory potential with...

Sestaveni Smerne Krivky Modulu Tuhosti Pro Zkoumani Nizkotrplotnich Vlastnosti (Developing of Stiffness Master Curve for Analysis of Low Temperature Properties)
PublicationV prispevku je predstaven novy postup pro sestrojeni smernych tuhostnich krivek. Nizkoteplotni vlastnosti asfaltove smesi byly stanoveny za vyuziti zkousky dotvarovani pri tribodovem ohybu. Motivem tohoto vyzkumu je skutecnost, ze metody hodnoceni nizkoteplotniho chovani asfaltovych smesi, nove zavedenych v Polsku, nejsou dostatecne. V zaveru jsou prezentovany smerne krivky tuhosti beznych asfaltovych smesi vyuzivanych v Polsku.

Optimal backbone coloring of split graphs with matching backbones
PublicationFor a graph G with a given subgraph H, the backbone coloring is defined as the mapping c: V(G) > N+ such that c(u)c(v) >= 2 for each edge uv \in E(H) and c(u)c(v) >= 1 for each edge uv \in E(G). The backbone chromatic number BBC(G;H) is the smallest integer k such that there exists a backbone coloring with max c(V(G)) = k. In this paper, we present the algorithm for the backbone coloring of split graphs with matching backbone.

Classification of homotopy classes of equivariant gradient maps
PublicationNiech V będzie ortogonalną reprezentacją zwartej grupy Liego Gi niech S(V),D(V) oznaczają sferę jednostkową i kulę jednostkową V.Jeżeli F jest Gniezmienniczą funkcją rzeczywistą klasy C^1 na Vto mówimy, że grad F (gradient F) jest dopuszczalny, jeżeli(grad F)(x) jest różny od zera dla x należących do S(V). Pracapoświęcona jest homotopijnej klasyfikacji dopuszczalnychGniezmienniczych odwzorowań gradientowych.

Dejavniki, ki vplivajo na lokacijo manjših in srednje velikih podjetij v predmestju: primer metropolitanskega območja mest Gdansk, Gdynia in Sopot
PublicationZaradi pomembne vloge manjših in srednje velikih podjetij (MSP) v evropskem gospodarstvu je ključno ustrezno poznavanje različnih dejavnikov, ki vplivajo na izbiro njihove lokacije. Kljub temu je v teoretičnih in empiričnih raziskavah industrijskih lokacij in urbanističnega načrtovanja velikost podjetij pogosto spregledana. V članku avtorji proučujejo kraj stalnega prebivališča kot dejavnik, ki spodbuja razvoj MSP v predmestjih....

A coordination chemistry study of hydrated and solvated cationic vanadium ions in oxidation states +III, +IV, and +V in solution and solid state
PublicationPrzedmiotem studiów jest chemia koordynacyjna solwatów jonów wanadu(III), oksowanadu(IV) jaki i dioksowanadu(V) w rozpuszczalnikach tlenowodonorowych takich jak: woda, dimetylosulfotlenek (DMSO) oraz N,N'dimetylopropylenomocznik (DMPU). Badania prowadzone były w roztworach ciekłych jak i w fazie stałej z wykorzystaniem absorpcji (EXAFS), rozproszenia (LAXS) jak i dyfrakcji promieniowania X. Analiza uzyskanych wyników wskazuje,...

On trees with equal domination and total outerindependent domination numbers
PublicationFor a graph G=(V,E), a subset D subseteq V(G) is a dominating set if every vertex of V(G)D has a neighbor in D, while it is a total outerindependent dominating set if every vertex of G has a neighbor in D, and the set V(G)D is independent. The domination (total outerindependent domination, respectively) number of G is the minimum cardinality of a dominating (total outerindependent dominating, respectively) set of G. We characterize...

On trees with equal 2domination and 2outerindependent domination numbers
PublicationFor a graph G = (V,E), a subset D \subseteq V(G) is a 2dominating set if every vertex of V(G)\D$ has at least two neighbors in D, while it is a 2outerindependent dominating set if additionally the set V(G)\D is independent. The 2domination (2outerindependent domination, respectively) number of G, is the minimum cardinality of a 2dominating (2outerindependent dominating, respectively) set of G. We characterize all trees...

Essential oils as potential antistaphylococcal agents
PublicationAntibiotic therapy of staphylococcal mastitis is characterized by significantly lower cure rates compared to infections caused by other microorganisms. Thus, it is necessary to search for new, alternative, nonantibiotic agents that are effective in the eradication of these bacteria. The aim of our research was to investigate the antimicrobial, especially antistaphylococcal potential of a large collection (n=36) of essential oils...

On the super domination number of lexicographic product graphs
PublicationThe neighbourhood of a vertexvof a graphGis the setN(v) of all verticesadjacent tovinG. ForD⊆V(G) we defineD=V(G)\D. A setD⊆V(G) is called a super dominating set if for every vertexu∈D, there existsv∈Dsuch thatN(v)∩D={u}. The super domination number ofGis theminimum cardinality among all super dominating sets inG. In this article weobtain closed formulas and tight bounds for the super dominating number oflexicographic product...