Filters
total: 14513
filtered: 11142
-
Catalog
- Publications 11142 available results
- Journals 873 available results
- Conferences 24 available results
- Publishing Houses 4 available results
- People 257 available results
- Inventions 5 available results
- Projects 39 available results
- Laboratories 7 available results
- Research Teams 6 available results
- Research Equipment 1 available results
- e-Learning Courses 336 available results
- Events 78 available results
- Open Research Data 1741 available results
Chosen catalog filters
displaying 1000 best results Help
Search results for: GEOMETRIC LAY-OUT
-
Anisakidae in beluga whales Delphinapterus leucas from Hudson Bay and Hudson Strait
Publication -
Use of X-Ray Computed Tomography for Ice Detection Applied to Organ Cryopreservation
Publication -
Upwelling intrusion into shallow Puck Lagoon, a part of Puck Bay (the Baltic Sea)
Publication -
Comparative Evaluation of Compacting Process for Base Materials using Lab Compaction Methods
Publication -
Ovarian tissue cryopreservation by stepped vitrification and monitored by X-ray computed tomography
Publication -
Enriching novel dark chocolate with Bacillus coagulans as a way to provide beneficial nutrients
Publication -
Factors Forming the Consumers’ Willingness to Pay a Price Premium for Ecological Goods in Ukraine
Publication -
Structure of Kα1,2 - and Kβ1,3 -emission x-ray spectra for Se, Y, and Zr
Publication -
Precise x-ray energies of gadolinium determined by a combined experimental and theoretical approach
Publication -
Can chronotype and social jet lag predict burnout among physical therapists?
Publication -
Ponad 30 lat tradycji nauczania języka fińskiego na Uniwersytecie Gdańskim
Publication -
Further evidence that oxidative stress may be a risk factor responsible for the development of atherosclerosis
Publication -
Muzeum Lat Dziecięcych Prymasa Tysiąclecia Stefana Kardynała Wyszyńskiego w Zuzeli
Publication -
Endothelial integrity may be regulated by a specific antigen via an IgE-mediated mechanism
Publication -
X-ray and NMR structural studies of the series of porphyrazines with peripheral pyrrolyl groups
Publication -
The exponential law for partial, local and proper maps and its application to otopy theory
Publication -
A Convenient Way to Methylated 2-Imidazolines. Syntheses of Fluorene and Triazine Cyclic Diamidines
PublicationOne N-methyl- and 4-substituted 2-imidazolines are described. Fluorene bisimidazolines were obtained in good yield (64-92%), starting from 2,7-dicyanofluorene and ammonium sulfide. In a two-step procedure the crude bisthioamide was reacted with excess diaminoalkane-ethanol (1:1 mixt.) in an oil bath. This new procedure is superior over std. methods. For the sake of comparison, a new triazine bisimidazoline (I) was prepd. by...
-
Legislation and Practice of Selected State Aid Issues, According to EU and Polish Law
PublicationThe dataset encompasses several tables, each consisting of three elements: legislation, jurisprudence and scientific articles on numerous subjects and economic activities receiving public financial support in the form of state aid instruments. The set includes a subjective list of the most commonly used and/or disputable examples of granting aid, such as for (local) airports and airlines, steel production, shipyards, and coalmines....
-
Implementation of an example of Hierarchical Petri Net (HPN) in LAD language in TIA Portal
Publication -
LIFE-SAVING PROCEDURES AND CARDIOPULMONARY RESUSCITATION FROM THE ANCIENT HISTORY TO THE PRESENT DAY
Publication -
Two-photon double ionization of atoms in attosecond x-ray radiation fields
PublicationWe consider two-photon double ionization of helium with 100, 200, and 400 eV excess energy for the two ejected electrons, corresponding to photon energies of 89.5, 139.5, and 239.5 eV, respectively. We focus on the case of ultrashort pulses (two oscillations of the field) and develop an approach to calculate the two-photon transition matrix elements within the lowest order of the time-dependent perturbation theory. One of the...
-
MPPT control - a way to the maximization of energy amount obtained from the PV module
PublicationW układzie MPPT (Maximum Power Point Tracking) poziom mocy maksymalnej jest dynamicznie śledzony dla różnych poziomów napromieniowania i temperatur przy użyciu pamięci, zaprojektowanej jako sterowany mikroprocesorem moduł. Zastosowany algorytm w sposób ciągły poszukuje maksymalnej wartości mocy podawanej ze źródła (modułów PV) oraz pobieranej przez obciążenie. Napięcie wyjściowe z układu MPPT zależy od aktualnych warunków, w jakich...
-
50 lat stosowania w Polsce rulonowej metody montażu zbiorników stalowych
PublicationPodano rys historyczny oraz omówiono zakres obecnego stosowania w Polsce metody rulonowej do wykonawstwa zbiorników stalowych
-
Enhancing diaphragmatic defect repair and regeneration: How biomaterials leading the way to progress?
Publication -
Wireless LAN with noncooperative anonymous stations: QOS provisioning via war of attrition
PublicationMAC-layer QoS provision necessitates an admission scheme to grant a requested QoS notwithstanding subse-quent requests. For an ad hoc WLAN with anonymous stations, we assume a degree of power awareness to propose a session- rather than frame-level bidding for bandwidth. Next we analyze the underlying Bayesian war of attrition game.
-
Polska fennistyka. Bibliografia dorobku. Wybór z lat 1824–2021 (książka)
Publication -
Development of a digital method for neutron/gamma-ray discrimination based on matched filtering
Publication -
Performance of the CMS hadron calorimeter with cosmic ray muons and LHC beam data
Publication -
Astronomy and Space Technologies, Photonics Applications and Web Engineering, Wilga, May 2012
Publication -
Performance Analysis of the "Intelligent" Kirchhoff- Law - Johnson-Noise Secure Key Exchange
PublicationThe Kirchhoff-law - Johnson-noise (KLJN) secure key distribution system provides a way of exchanging theoretically secure keys by measuring random voltage and current through the wire connecting two different resistors at Alice’s and Bob’s ends. Recently new advanced protocols for the KLJN method have been proposed with enhanced performance. In this paper, we analyze the KLJN system and compare with the „intelligent” KLJN (iKLJN)...
-
KONFIGURACJA SIECI LAN TYPU SOHO DO PRACY W INTERNECIE IPv6
PublicationArtykuł przedstawia podstawowe problemy występujące przy migracji środowisk małych sieci do obsługi protokołu IPv6. Wraz z problemami przedstawione zostały propozycje metodologii przeprowadzenia migracji i narzędzia wspomagające ten proces. Przedstawiono system wspierający administratorów w migracji zarządzanych przez nich sieci do obsługi protokołu IPv6. Celem pracy jest analiza problemów procesów migracji IPv4 do IPv6 oraz wskazanie...
-
30 lat aplikacji metody hydrofitowej na Pomorzu - postęp i badania
PublicationAktualnym dążeniem wszystkich działań związanych z szeroko pojętą gospodarką komunalną jest uwzględnienie zasady zrównoważonego rozwoju tak, aby zaspokajać potrzeby ludności bez pomniejszania zasobów dla przyszłych pokoleń. Zasada zrównoważonego rozwoju polega na wykorzystaniu najlepszych dostępnych technik i praktyk, które pomagają rozwijać się społecznościom, bez uszczerbku dla środowiska przyrodniczego. Systemy hydrofitowe...
-
Isothiocyanates may chemically detoxify mutagenic amines formed in heat processed meat
PublicationMeat consumption represents a dietary risk factor increasing the incidence of common cancers, probably due to carcinogenic amines (HAAs) formed upon meat heating. Interestingly, cancers whose incidence is increased by meat consumption, are decreased in populations consuming brassica vegetables regularly. This inverse correlation is attributed to brassica anticarcinogenic components, especially isothiocyanates (ITCs) that stimulate...
-
Tailoring of SiOC composition as a way to better performing anodes for Li-ion batteries
PublicationPolymer derived silicon oxycarbide (SiOC) ceramics are investigated as potential anodes for lithiumion batteries. Different SiOC ceramics are prepared by pyrolysis (1000 °C and 1400 °C under controlled argon atmosphere) of polysiloxanes ceramic precursors. Preceramic polymers are synthesized using the sol–gel method. Phenyltriethoxysilane (PhTES) and methyltriethoxysilane (MTES) have been used as starting precursors and mixed with...
-
Application of the X-ray micro computed tomography to the analysis of the structure of polymeric materials
PublicationIn this paper the application of X-ray micro-computed tomography (micro-CT) as a non-destructive testing method of polymeric materials is presented. Increasing applicability of polymers in variedend-use industries such as automotive, building and construction, consumer goods, and packaging is propelling the growth of the global polymer processing market. However, controlling of the polymer structure is one of the most important...
-
Influence of a Radio Frequency on RF Fingerprinting Accuracy Based on Ray Tracing Simulation
PublicationIn this paper the influence of a radio signal frequency on performance of Indoor Positioning System based on fingerprinting has been examined using ray-tracing simulations. It has been simulated how spatial distribution of an RF signal strength change with the signal’s frequency. The results were used to show its’ impact on the behavior of localization algorithms that are employing RSS measurements to determine node’s position...
-
Sawing Processes as a Way of Determining Fracture Toughness and Shear Yield Stresses of Wood
PublicationA new computational model, based on fracture mechanics, was used to determine cutting forces. Unlike traditional computing methods, which depend on many coefficients reflecting the machining of solid wood, the new model uses two main parameters: fracture toughness and shear yield stresses. The aim of this study was to apply this new method to determine these parameters for the tooth cutting edge principal positions and longitudinal...
-
Numerical modeling of the combustion in a lab-scale pulverized-coal fired combustion chamber
PublicationThis work presents results of numerical modeling of the combustion process inside a lab-scale drop-tube chamber, designed to investigate the slagging properties of the flue ashes, created through the solid fuel firing. Interaction between turbulence and chemistry is accounted by use of probability density function (PDF). FLUENT inputs for non-premixed combustion chemistry modeling are defined. A discrete second phase of the coal...
-
The way things are done here - Polish entrepreneurship / having endowed heritage or burden?
PublicationPoprzez analizę studiów przypadku, w oparciu o wywiady pogłębione oraz obserwację uczestniczącą, autor przypomina postulaty zaniedbywane w pracach nad polską przedsiębiorczością. Modele przedsiębiorczości zbudowane na podstawie badań w Europie Zachodniej albo Ameryce Północnej niekoniecznie muszą znaleźć swoje odzwierciedlenie w modelach przedsiębiorczości charakterystycznych dla gospodarek po okresie transformacji ustroju gospodarczo-społecznego...
-
BIOLOGICAL AGE ASSESSMENT ALGORITHMS BASED ON X-RAY IMAGES OF BONE TISSUE
Publication-
-
Influence of geotechnical conditions on damage states of Gdansk Bay Coast cliff formations
PublicationA geotechnical aspect of destruction processes of seashores was identified based on the case of erosion of Gdansk Bay Coast cliff formations. Causative factors of landslide were described in the context of natural phenomena, land development and its anthropogenic transformations. Possible directions of theoretical analysis of changes in groundwater relations were indicated.
-
High-accuracy computation of hard X-ray focusing and imaging for refractive optics
PublicationA mathematical apparatus for solving problems of X-ray wave propagation through complex optical systems, when the lens thickness can change with jumps, is developed and presented. The developed method is based on the use of the superposition of oriented Gaussian beams, which satisfy the Helmholtz equation with high accuracy. The wave propagation in air and through kinoform and ordinary lenses is considered. Focusing and imaging...
-
70 LAT PRAKTYKI POMIAROWEJ W OCENIE WŁAŚCIWOŚCI UZIEMIEŃ METODĄ UDAROWĄ
PublicationPrzedstawiono liczącą ok. 70 lat historię prac związanych z rozwojem sposobów oceny uziemień wykorzystujących metodę udarową. Pierwsze prace związane z tym zagadnieniem zostały rozpoczęte w połowie ubiegłego wieku na Politechnice Gdańskiej z inicjatywy profesora Stanisława Szpora. Omówiono metodę pomiaru, stosowane kolejne generacje mierników, możliwości oceny uziemień i różne definicje normalizacyjne opisujące właściwości uziemienia...
-
Can high hydrostatic pressure processing be the best way to preserve human milk?
PublicationBreastfeeding is one of the most important factors influencing proper child development. When a mother cannot breastfeed, the best alternative, especially for feeding premature infants, is to then use of human milk (HM) which has been collected, preserved and stored in Human Milk Banks (HMB). Scope and approach: In this review, the impact of some stages of the management of HM in HMB on its final biological value and microbiological...
-
Styrene Oxidation by Copper(II) Complexes Salen-Type Encapsulated into Nay Zeolite
PublicationThe copper(II) complex with a Schiff-base salen-type ligand has been encapsulated in the nanopores of a NaY zeolite by using two different methodologies, the flexible ligand and in situ complex preparation methods. The encapsulated and non-encapsulated copper(II) complexes were screened as catalysts for styrene oxidation by using TBHP as the oxygen source in acetonitrile solvent. Under the optimized conditions, the catalysts exhibited...
-
Striking elements - A lifebelt or a fad? Searching for an effective way of adapting abandoned churches.
PublicationAre avant-garde elements added to historical objects as a temporary fashion to fulfill the aspirations of designers or an attempt to draw attention to themselves? It may be the exact opposite, and this type of controversial project is the best lifebelt for such monuments. This article explores issues related to external avant-garde elements added to adapted churches and their influence on the efficiency of such adaptation projects....
-
100 lat Laboratorium Maszynowego na Politechnice w Gdańsku 1904-2004.
PublicationPrzedstawiono 100-letnią historię Laboratorium Maszynowego na Politechnice w Gdańsku. Omówiono funkcje, jakie pełniło laboratorium w okresie istnienia. Początkowo był to zakład energetyczny zaopatrujący uczelnię w ciepło, energię elektryczną i wodę oraz laboratorium dydaktyczne dla studentów. W ostatnim okresie pełni ono głównie rolę laboratorium dydaktycznego oraz naukowo-badawczego. Część ilustracyjna zawiera unikalne zdjęcia...
-
Czterdzieści lat pracy w dziedzinie hydroakustyki Katedry Systemów Elektroniki Morskiej.
PublicationW artykule przedstawiono przegląd prac wykonywanych w ostatnich latach w Katedrze Systemów Elektroniki Morskiej (poprzednio występującej pod nazwą Katedry Radionawigacji i Katedry Akustyki) dla Marynarki Wojennej RP. Wynikiem tych prac było wyposażenie okrętów i samolotów MW w echosondy, sonary czołowe i boczne, systemy komunikacji podwodnej i specjalistyczną aparaturę pomiarową.
-
A constitutive law for concrete with smooth transition from continuous into discontinuous cracks’ description
PublicationPaper presents a constitutive model for concrete that combines a continuous and discontinuous crack’s description to simulate the concrete under tensile dominated loads. In a continuum regime, two different constitutive laws were used. First, a plasticity model with the Rankine failure criterion and an associated flow rule was used. Second, a constitutive law based on isotropic damage mechanics was formulated. Both model alternatives...
-
A non local hypoplastic constitutive law to describe shear localization in granular bodies.
PublicationPrzedstawiono wyniki numerycznej analizy formacji stref ścinania w materiale granulowanym podczas ściskania. Zachowanie suchego piasku podczas testów ściskania w płaskim stanie odkształcenia było analizowane z zastosowaniem metody elementów skończonych i nielokalnego hipoplastycznego prawa konstytutywnego. Podczas obliczeń numerycznych zwrócono szczególną uwagę na wpływ długości charakterystycznej na nośność i szerokość...