Filtry
wszystkich: 4649
-
Katalog
- Publikacje 3113 wyników po odfiltrowaniu
- Czasopisma 46 wyników po odfiltrowaniu
- Konferencje 6 wyników po odfiltrowaniu
- Osoby 62 wyników po odfiltrowaniu
- Projekty 2 wyników po odfiltrowaniu
- Laboratoria 1 wyników po odfiltrowaniu
- Kursy Online 142 wyników po odfiltrowaniu
- Wydarzenia 35 wyników po odfiltrowaniu
- Dane Badawcze 1242 wyników po odfiltrowaniu
wyświetlamy 1000 najlepszych wyników Pomoc
Wyniki wyszukiwania dla: fine roots
-
Synchronization helps robots to detect black holes in directed graphs
PublikacjaPraca zawiera nowe wyniki dla problemu poszukiwania czarnej dziury w grafie skierowanym przez zbiór agentów. Czarna dziura jest węzłem niszczącym wszystkich wchodzącej do niej agentów. Pokazano, że w przypadku, gdy stopień wejściowy czarnej dziury wynosi D, do przeszukania grafu skierowanego w modelu synchronicznym wystarcza O(D 2^D) agentów. Wartość ta jest bliska znanemu z literatury oszacowaniu dolnemu Omega (2^D). W pracy pokazano...
-
Taking advantage of symmetries: gathering of asynchronous oblivious robots on a ring
PublikacjaW pracy rozważano problem rendezvous (spotkania, zebrania) dla zbioru bezpamięciowych robotów umieszczonych na wierzchołkach cyklu nieskierowanego, niewyposażonych w urządzenia komunikacyjne. Przyjęto model systemu rozproszonego występujący w literaturze pod nazwą asynchronicznego systemu z cyklami Look-Compute-Move. Problem istnienia rozwiązania rozwiązano dla wszystkich konfiguracji poczatkowych składających się z więcej niż...
-
Collaborative Delivery by Energy-Sharing Low-Power Mobile Robots
PublikacjaWe study two variants of delivery problems for mobile robots sharing energy. Each mobile robot can store at any given moment at most two units of energy, and whenever two robots are at the same location, they can transfer energy between each other, respecting the maximum capacity. The robots operate in a simple graph and initially each robot has two units of energy. A single edge traversal by an robot reduces its energy by one...
-
Journal of Wine Economics
Czasopisma -
Image Processing On Line
Czasopisma -
FIRE SAFETY JOURNAL
Czasopisma -
Fire Rescue Magazine
Czasopisma -
Safety & Fire Technology
Czasopisma -
Journal of Wine Research
Czasopisma -
Wine Economics and Policy
Czasopisma -
JOURNAL OF FIRE SCIENCES
Czasopisma -
Production of tropane alkaloids in Hyoscyamus niger (black henbane) hairy roots grown in bubble-column and spray bioreactors
PublikacjaHairy root cultures of Hyoscyamus niger were cultivated in shake-flasks, a bubble-column bioreactor and a hybrid bubble-column/spray bioreactor and evaluated for alkaloid production.
-
OBTAINING ANTHOCYANINS FROM CHOKEBERRY, BLACKCURRANT AND ELDERBERRY FRUITS, AND FROM ROOTS OF BLACK CARROT USING EXTRACTION METHOD
Publikacja -
Deep eutectic solvent-based shaking-assisted extraction for determination of bioactive compounds from Norway spruce roots
PublikacjaPolyphenolic compounds play an essential role in plant growth, reproduction, and defense mechanisms against pathogens and environmental stresses. Extracting these compounds is the initial step in assessing phytochemical changes, where the choice of extraction method significantly influences the extracted analytes. However, due to environmental factors, analyzing numerous samples is necessary for statistically significant results,...
-
A Triplet-Learnt Coarse-to-Fine Reranking for Vehicle Re-identification
PublikacjaVehicle re-identification refers to the task of matching the same query vehicle across non-overlapping cameras and diverse viewpoints. Research interest on the field emerged with intelligent transportation systems and the necessity for public security maintenance. Compared to person, vehicle re-identification is more intricate, facing the challenges of lower intra-class and higher inter-class similarities. Motivated by deep...
-
A Triplet-learnt Coarse-to-Fine Reranking for Vehicle Re-identification
Publikacja -
Some aspects of the constitutive modelling of natural fine grained soils
PublikacjaThe monograph deals with selected problems of the constitutive modelling of natural fine grained soils commonly known as clays. The main idea is not to propose a unified model which is capable of describing all known features of mechanical behaviour of fine grained soils. Instead, separate models are proposed describing the mechanical behaviour of heavily overconsolidated, lightly overconsolidated and normally consolidated clays....
-
Carrot root size distribution in response to biostimulant application
Publikacja -
Square root RC Nyquist filter of fractional delay
PublikacjaIn this paper we propose a discrete-time FIR (finite impulse response) filter which couples the role of square root Nyquist filter with fractional delay filter. This filter enables to substitute for a cascade of square root RC (SRRC) Nyquist filter and fractional delay filter in one device/algorithm. The aim is to compensate for transmission delay in communication system. Statistically defined performances, e.g. BER (bit error...
-
On root finding algorithms for complex functions with branch cuts
PublikacjaA simple and versatile method is presented, which enhances the complex root finding process by eliminating branch cuts and branch points in the analyzed domain. For any complex function defined by a finite number of Riemann sheets, a pointwise product of all the surfaces can be obtained. Such single-valued function is free of discontinuity caused by branch cuts and branch points. The roots of the new function are the same as the...
-
Complex Root Finding Algorithm Based on Delaunay Triangulation
PublikacjaA simple and flexible algorithm for finding zeros of a complex function is presented. An arbitrary-shaped search region can be considered and a very wide class of functions can be analyzed, including those containing singular points or even branch cuts. The proposed technique is based on sampling the function at nodes of a regular or a self-adaptive mesh and on the analysis of the function sign changes. As a result, a set of candidate points...
-
Taking advantage of symmetries: Gathering of many asynchronous oblivious robots on a ring
PublikacjaOne of the recently considered models of robot-based computing makes use of identical, memoryless mobile units placed in nodes of an anonymous graph. The robots operate in Look-Compute-Move cycles; in one cycle, a robot takes a snapshot of the current configuration (Look), takes a decision whether to stay idle or to move to one of the nodes adjacent to its current position (Compute), and in the latter case makes an instantaneous...
-
Frequency domain vibration surveillance of industrial robots using modal control
PublikacjaRozważano drgania niestacjonarnego układu nośnego robota IRb-6 . Do nadzorowania drgań wykorzystano algorytm sterowania modalnego przy energetycznym wskaźniku jakości w dziedzinie częstotliwości. Celem proponowanego algorytmu jest minimalizacja amplitudy drgań końcówek manipulacyjnych (efektorów), a w rezultacie - zwiększenie wydajności linii zrobotyzowanych, poprawa dokładności i powtarzalności pozycjonowania robota.
-
Design of control algorithms for mobile robots in an environment with static and dynamic obstacles
PublikacjaThis article proposes the construction of autonomous mobile robots and designing of obstacle avoidance algorithms for them. Nowadays, mobile robots are gaining more and more popularity on the customer as well as industrial market, for example as automatic vacuum cleaners or lawnmowers. Obstacle avoidance algorithms play an important role in performance of this types of robots. The proposed algorithms were designed for builds with...
-
Technical fabrics in costruction of large scale roofs - numerical and experimental aspects
PublikacjaDesigning and construction of textile hanging roofs is the challenging subject for engineers. This type of structure needs geometrically and very often also physically non-linear calculations. Due to different behaviour of two families of threads (warp and weft), which during deformation can change the angle between their directions, they require special constitutive modelling. Also the loading of hanging roofs is very special....
-
Analysis of material properties of technical fabric for hanging roofs andpneumatic shells.
PublikacjaPrzedyskutowano zastosowanie w metodzie elementów skończonych specjalnego modelu elementu do analizy tkanin technicznych. Przedstawiono specjalne postępowanie z typowym elementem w płaskim w stanie naprężenia, tak aby uwzględnić można było zjawiska charakterystyczne dla tkanin technicznych. Zaproponowany model pozwala na zastosowanie niesprężystych związków konstytutywnych a w szczególności związków lepkoplastycznych. Opisano doświadczenia...
-
Channel Impulse Response Measurements at mmWave Band in Office and Conference Rooms
PublikacjaIn this paper, the measurements of the channel impulse response at mmWave band in office and conference rooms are described. The central frequency is 27 GHz with a bandwidth of 400 MHz. The description of the used measurement stand and considered environments are presented. The initial analysis of the power delay profile, mean delay, and RMS delay spread allows preliminary conclusions to be drawn that there is a significant impact...
-
On Deck Oil Spill Clean-Up Materials – Solution for Engine Rooms
Publikacja -
A Finer Point on Vision
PublikacjaAs an IES Member, I look forward to each issue of LD+A and read them with great interest as they are often very informative. To my surprise, the Research article (May 2019, p. 76) has an error which should be corrected.
-
LE STIME ECONOMICHE DELLA CIA E L’IMPREVEDIBILE FINE DELL’URSS
PublikacjaIn this article, we will analyze the debate that took place around the assessments that the CIA gave of the economic situation in the Soviet Union, a clearly decisive key to understanding the overall health of the main political-military opponent of the United States. The article will include the discussions that flared up in the American political establishment starting in 1990, after the fall of the Berlin Wall and the initial...
-
Characterization and Technical Application of Fine Photocatalytical Particles - A Study of the Immobilization of Photocatalysts
PublikacjaThe main aim of this dissertation was the transfer of photocatalytical laboratory scale experiments to semi-technical scale. Preliminary experiments of the purification of organic chlorine-loaded waters and the immobilization of photocatalysts were performed, which yielded the research back to the roots of synthesis. The first applied research was carried out on treatment of recreational water. Several light sources, particularly...
-
Direct synthesis of fine boron carbide powders using expanded graphite
Publikacja -
Production of fine droplet emulsions in the agitated draft-tube column reactor
PublikacjaBadano rozkłady wielkości kropel emulsji woda - olej parafinowy w reaktorze dwukolumnowym z mieszaniem w kolumnie wewnętrznej jako strefie wznoszenia. Stosując model dyspersyjny w układzie zamkniętym z całkowitą recyrkulacją, wyznaczono obwodowe i strefowe współczynniki dyspersji
-
Justyna Płotka-Wasylka dr hab. inż.
OsobyUrodziła się w Słupsku (24.03.1986).W 2005 roku ukończyła I Liceum Ogólnokształcące im. Jana II Sobieskiego w Wejherowie i rozpoczęła studia na Wydziale Chemicznym Politechniki Gdańskiej. Po ich ukończeniu w 2010 rozpoczęła pracę naukową na tej uczelni, uzyskując w 2014 roku stopień doktora nauk chemicznych. Tematem jej rozprawy doktorskiej, wykonywanej pod kierunkiem prof. Marka Biziuka oraz dr Caluma Morrisona (Uniwersytet w...
-
Efficient Complex Root Tracing Algorithm for Propagation and Radiation Problems
PublikacjaAn efficient complex root tracing algorithm for propagation and radiation problems is presented. The proposed approach is based on a discretization of Cauchy’s Argument Principle and its generalization to the C × R space. Moreover, an engagement of the tracing process with a global root finding algorithm recently presented in the literature is performed. In order to confirm a validity and efficiency of the proposed technique, a...
-
Life Cycle Cost Assessment and the Optimum Design of Timber Roofs for Sustainable Construction
Publikacja -
a rule for vibration surveillance of manipulators in order to improve operating parameters of industrial robots
PublikacjaPrzedmiotem rozważań są drgania układu nośnego manipulatora IRb-6. Proponowane podejście ma na celu minimalizację poziomu drgań końcówki manipulatora. Dla niestacjonarnego układu sterowanego, którego zachowanie opisano we współrzędnych uogólnionych, zdefiniowano energetyczny wskaźnik jakości uwzględniający energię kinetyczną i potencjalną układu, a także - chwilową energię sygnału sterującego. Dalsze rozważania dotyczą tymczasowego...
-
Viscoplastic properties of coated textile material ''Panama'' and its usage for hanging roofs.
PublikacjaPodano sposób identyfikacji parametrów materiałowych lepkoplastycznego prawa Bodnera-Partoma i prawa Chaboche´a. Przedstawiono model sieci gęstej pozwalający na zastosowanie wyników prób jednoosiowego rozciągania do rzeczywistej tkaniny. Pokazano zastosowanie wyników w analizie statycznej i dynamicznej przekrycia wiszącego typu hypar poddanego wstępnemu naprężaniu. Przeanalizowano zmianę geometrii i częstości drgań własnych.
-
Analysis of Reliability Structures for Fire Signaling Systems in the Field of Fire Safety and Hardware Requirements
Publikacja -
Clarification of 1,3-Propanediol Fermentation Broths by Using a Ceramic Fine UF Membrane
Publikacja -
Response of inflammatory cells to biodegradable ultra-fine grained Mg-based composites
Publikacja -
Engineering of composite materials made of epoxy resins modified with recycled fine aggregate
Publikacja -
Improving carbon dioxide capture in aqueous ammonia solutions by fine SiO2 particles
PublikacjaAmmonia solutions are considered to be effective solvents for carbon dioxide absorption. Despite the numerous advantages of these solvents, their high volatility is a significant technical and economic problem. Therefore, in this work, silica particles were used as additives to improve CO2 absorption and inhibit NH3 desorption. SiO2 microparticles and colloidal SiO2 particles in the concentration range of 0-0.15 wt.% were used...
-
Five strategies for the uncertain future
PublikacjaThe paper focuses on strategies of architectural education the in an era of increasing mobility, emerging alternative energy solutions and prevailing tone of uncertainty concerning future development of cities. Five strategies implemented at the Faculty of Architecture, Gdańsk University of Technology have been presented.
-
On-line ranking of split graphs
PublikacjaA vertex ranking of a graph G is an assignment of positive integers (colors) to the vertices of G such that each path connecting two vertices of the same color contains a vertex of a higher color. Our main goal is to find a vertex ranking using as few colors as possible. Considering on-line algorithms for vertex ranking of split graphs, we prove that the worst case ratio of the number of colors used by any on-line ranking algorithm...
-
A sine wave delay estimator
PublikacjaZaprezentowano nowe rozwiązanie dyskretno-czasowego estymatora ułamkowego opóźnienia sygnału sinusoidalnego, działające w systemie z otwartą pętlą sprzężenia zwrotnego. Proponowane rozwiązanie wykorzystuje koncepcję transformowania za pomocą filtru Hilberta sygnału referencyjnego celem estymacji różnicy fazy tego sygnału względem zaszumionego sygnału odebranego o znormalizowanej (względem okresu próbkowania) częstotliwości - bardzo...
-
On-line P-coloring of graphs
PublikacjaFor a given induced hereditary property P, a P-coloring of a graph G is an assignment of one color to each vertex such that the subgraphs induced by each of the color classes have property P. We consider the effectiveness of on-line P-coloring algorithms and give the generalizations and extensions of selected results known for on-line proper coloring algorithms. We prove a linear lower bound for the performance guarantee function...
-
Efficient Complex Root Finding Algorithm for Microwave and Optical Propagation Problems
PublikacjaArticle relates to the use of innovative root finding algorithm (on a complex plane) to study propagation properties of microwave and optical waveguides. Problems of this type occur not only in the analysis of lossy structures, but also in the study of complex and leaky modes (radiation phenomena). The proposed algorithm is simple to implement and can be applied for functions with singularities and branch cuts in the complex plane...
-
Studia Pedagogiczno-Artystyczne (Studies in Pedagogy and Fine Arts)
Czasopisma -
Journal of Structural Fire Engineering
Czasopisma