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Wyniki wyszukiwania dla: physical oceanography
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Early Oceanographical Data Collected by the Institute of Oceanography, University of Gdańsk
PublikacjaThree data sets entitled Water currents in Głębinka Passage in late spring of 1975, Hydrometeorological and hydrochemical conditions in the Gulf of Gdańsk in the vicinity of Vistula river mouth in July of 1977, and Gulf of Gdańsk monitoring conducted by the Institute of Oceanography, University of Gdańsk, in 1981–1994 contain archival field measurement results from the Gulf of Gdańsk (the southern Baltic). The data can be used...
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The latest Jurassic–earliest Cretaceous climate and oceanographic changes in the Western Tethys: The Transdanubian Range (Hungary) perspective
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Structural and physical characterization of NpPt2In7
PublikacjaA new neptunium intermetallic compound, NpPt2In7, has been synthesized in polycrystalline form and characterized by several macroscopic techniques. A Rietveld analysis of its powder x-ray diffraction pattern shows that NpPt2In7 crystallizes in a tetragonal lattice with I4/mmm symmetry and lattice parameters a = 4.58471(3) Å, c = 21.5065(3) Å. Magnetic susceptibility, electrical resistivity, Hall effect, and heat capacity measurements indicate...
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Physical Properties of the Noncentrosymmetric SuperconductorMg10Ir19B16
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The Physical Activity Environment Policy Index for monitoring government policies and actions to improve physical activity
PublikacjaBackground A multifaceted response, including government action, is essential to improve population levels of physical activity (PA). This article describes the development process of the ‘Physical Activity Environment Policy Index’ (PA-EPI) monitoring framework, a tool to assess government policies and actions for creating a healthy PA environment. Methods An iterative process was undertaken. This involved a review of policy...
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Information content of systems as a physical principle
PublikacjaTo explain the conceptual gap between classical and quantum and other, hypothetical descriptions of the world, several principles have been proposed. So far, all these principles have not explicitly included the uncertainty relation. Here we introduce an information content principle ( ICP ) which represents a constrained uncertainty principle. The principle, by taking into account the encoding and decoding properties of a single physical...
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Physical-chemical processes of diamond grinding
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Declared and actual students’ physical activity
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Physical properties of the noncentrosymmetric superconductor Mg10Ir19B16
PublikacjaPrzedstawione zostały wyniki pomiarów ciepła właściwego, oporu elektrycznego i podatności magnetycznej nowo odkrytego materiału nadprzewodzącego Mg10Ir19B16. Na podstawie pomiarów ustalono, że Mg10Ir19B16 jest nadprzewodnikiem drugiego typu (kappa=20), ze stałą sprzężenia elektron - fonon lambda_ep=0.66.
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Physical models in the education of architectural history
PublikacjaIn this article, the authors present the long tradition and common use of physical models in the process of teaching the history of architecture in higher education institutions. The research described in the article is focused on the use of physical models and mock-ups as stimulants during architectural history classes to support lectures and increase the learning capabilities of students. The authors also cover the general use...
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Green Physical Activity Indicator: Health, Physical Activity and Spending Time Outdoors Related to Residents Preference for Greenery
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A history of the physical and chemical stability of pharmaceuticals : a review
Publikacja: There is a great need for a broad range review of stability tests of active pharmaceutical ingredients (APIs) in comparison with current requirements contained in the pharmacopoeia. This review focuses on a pharmaceutical history of physical and chemical stability determination. Traditional knowledge must be considered in the context of physical stability, while new knowledge must be applied and acquired in terms of identification...
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On structural physical approximations and entanglement breaking maps
PublikacjaVery recently, a conjecture saying that the so-called structural physical approximations (SPAs) to optimal positive maps (optimal entanglement witnesses) give entanglement breaking (EB) maps (separable states) has been posed (Korbicz et al 2008 Phys. Rev. A 78 062105). The main purpose of this contribution is to explore this subject. First, we extend the set of entanglement witnesses supporting the conjecture. Then, we ask whether...
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PHYSICAL MODELLING OF GEOTECHNICAL STRUCTURES IN PORTS AND OFFSHORE
PublikacjaThe physical modelling of subsoil behaviour and soil-structure interaction is essential for the proper design of offshore structures and port infrastructure. A brief introduction to such modelling of geoengineering problems is presented and some methods and experimental devices are described. The relationships between modelling scales are given. Some examples of penetration testing results in centrifuge and calibration chamber...
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Synthesis and physical properties of the 10.6 K ferromagnet NdIr3
PublikacjaThe magnetic, transport, and thermodynamic properties of NdIr3 are reported. Its PuNi3-type crystal structure (space group R−3m), with lattice parameters a= 5.3262(1)Å and c=26.2218(3)Å, was confirmed by powder x-ray diffraction. Our measurements indicate that NdIr3 exhibits a previously unreported paramagnetic to ferromagnetic phase transition below TC=10.6 K(determined by using the Arrott plot). The magnetic susceptibility obeys...
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Chemical structures and physical properties of cured segmental polyurethanes
PublikacjaPrzedmiotem badań były poliuretany (PUR) segmentowe otrzymywane w dwuetapowej syntezie oligomerycznego α,ω-dihydroksy(adypinianu etylenowo-butylenowego) oraz dwóch różnych aromatycznych diizocyjanianów: 4,4'-diizocyjanianu difenylenometanu (MDI) albo MDI modyfikowanego diizocyjanianem karbodiimidu. Na etapie przedłużania łańcucha, oprócz typowo używanego do tego celu 1,4-butanodiolu, stosowano triol - 1,3-dihydroksy-2-(hydroksymetyleno)propan...
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Physical Activity and Cognitive Functioning of Children: A Systematic Review
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Electronic structure and physical properties of EuAuAs single crystal
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Ultrawideband transmission in physical channels: a broadband interference view
PublikacjaThe superposition of multipath components (MPC) of an emitted wave, formed by reflections from limiting surfaces and obstacles in the propagation area, strongly affects communication signals. In the case of modern wideband systems, the effect should be seen as a broadband counterpart of classical interference which is the cause of fading in narrowband systems. This paper shows that in wideband communications, the time- and frequency-domain...
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EVALUATING THE EFFECTIVENESS OF NON-PHYSICAL SPEED MANAGEMENT MEASURES
PublikacjaThe subject of the Authors' analyses is a group of non-physical speed management measures. How effective they are depends primarily on how willing drivers are to accept restrictions. Social and cultural factors play a major role. The effectiveness of these measures is not clear and requires further research. The authors conducted such research and evaluated the effects of nonphysical speed management measures on driver behaviour...
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S09 Insights into the development of the physical activity environment policy index, a tool for benchmarking implementation of public policies to create healthy physical activity policy environments
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S09-4 The development of the Physical Activity Environment Policy Index (PA-EPI): a tool for monitoring and benchmarking government policies and actions to improve physical activity
PublikacjaBackground Insufficient physical activity (PA) is a global issue for health. A multifaceted response, including government action, is essential to improve population levels of PA. The purpose of this study was to develop the ‘Physical Activity Environment Policy Index’ (PA-EPI) monitoring framework to assess government policies and actions for creating a healthy PA environment. Methods An iterative process was undertaken. This...
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Physical, Chemical and Mechanical Properties of Novel Poly(Urethaneamideimide)s
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Visual content representation and retrieval for Cognitive Cyber Physical Systems
PublikacjaCognitive Cyber Physical Systems have gained significant attention from academia and industry during the past few decade. One of the main reasons behind this interest is the potential of such technologies to revolutionize human life since they intend to work robustly under complex visual scenes, which environmental conditions may vary, adapting to a comprehensive range of unforeseen changes, and exhibiting prospective behavior...
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Studies on the influence of β-cyclodextrin derivatives on the physical stability of famotidine
PublikacjaThe usage of Fourier transform infrared spectroscopy, near infrared spectroscopy, differential scanning calorimetry and microscopy is presented in this work focused on the exploration of the effect of CD on the physical stability of famotidine (FAM). The most significant information was achieved by analysis of the second derivatives ofnear infrared (NIR) spectra recorded. Changes in the shape of spectra derivatives allow...
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Some aspects of physical and numerical modeling of water hammer in pipelines
PublikacjaCharakterystyki ciśnieniowe otrzymywane w wyniku symulacji numerycznych uderzenia hydraulicznego różnią się zasadniczo od charakterystyk obserwowanych na drodze doświadczalnej. Stosowane zabiegi matematyczne i numeryczne pozwalające na poprawę zgodności między obliczeniami a pomiarami okazują się skuteczne tylko w przypadku prostych rurociągów o stałej średnicy. Dla bardziej skomplikowanych przypadków prawidłowe odwzorowanie zjawiska...
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Selective Protection for All-Optical Physical Impairment Constrained Routing
PublikacjaW przypadku sieci optycznych, zauważalna jest obecnie tendencja dążenia do transmisji całowicie optycznej (tz. bez konwersji O/E/O w węzłach tranzytowych). Jednakże w niedalekiej przyszłości, z uwagi na techniczne ograniczenia, niemożliwa będzie obsługa całości ruchu wyłącznie w dziedzinie optycznej. Operatorzy będą więc zainteresowani oferowaniem rozwiązań przejściowych implikujących przełączanie w dziedzinie optycznej jedynie...
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Chapter 14. Physical and chemical interaction of componenets in food systems
PublikacjaBiałka, lipidy, sacharydy, składniki mineralne, woda i inne związki występują w żywności w postaci roztworów i różnych mikrostruktur - kropelek, globulek, kryształów, włókienek i błon. Reaktywne grupy funkcyjne tych składników wchodzą w warunkach przechowywania i obróbki, szczególnie po zniszczeniu oryginalnych struktur, w interakcje wpływające na barwę, zapach, smak i reologiczne właściwości żywności. W technologii żywności wykorzystuje...
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Chapter 19: Physical and mathematical models of losses in hydraulic motors
PublikacjaOpisano bilans energii w silniku hydraulicznym z uwzględnieniem strat mechanicznych, objętościowych i ciśnieniowych opisanych modelami fizycznymi i matematycznymi.
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Physical properties of the uranium ternary compoundsU3Bi4M3(M=Ni,Rh)
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Habitual physical activity and estradiol levels in women of reproductive age
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Evaluation of physiological and physical activity by means of a wireless multi-sensor
Publikacjamonitorowanie osób starszych, upośledzonych ruchowo i/lub rekonwalescentów w warunkach domowych jest dynamicznie rozwijającą się dyscypliną nauki i techniki. szczególnego znaczenia nabierają systemy przeznaczone dla osób starszych żyjących samotnie. w pracy przedstawiono zintegrowany system umożliwiający monitorowanie wybranych parametrów fizjologicznych (ekg, ikg, resp) oraz aktywności fizycznej za pomocą akcelerometru. działanie...
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The Towers of Hanoi as a Cyber-Physical System Education Case Study
Publikacjacps
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A Hyperdense Semantic Domain for Discontinuous Behavior in Physical System Models
PublikacjaMultiple time models have been proposed for the formalization of hybrid dynamic system behavior. The superdense notion of time is a well-known time model for describing event-based systems where several events can occur simultaneously. Hyperreals provide a domain for defining the semantics of hybrid models that is elegantly aligned with first principles in physics. This paper discusses the value of both time models and shows how...
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Physical properties and electronic structure of La3Co and La3Ni intermetallic superconductors
PublikacjaLa3Co and La3Ni are reported superconductors with transition temperatures of 4.5 and 6 K, respectively. Here, we reinvestigate the physical properties of these two intermetallic compounds with magnetic susceptibility χ, specific heat Cp and electrical resistivity ρ measurements down to 1.9 K. Although bulk superconductivity is confirmed in La3Co, as observed previously, only a trace of it is found in La3Ni, indicating that the...
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Crystal structure and physical properties of a novel ternary compound La15MoxGe9
PublikacjaWe present the synthesis, structural characterization and physical properties measurements of a new compound, La15MoxGe9 in Mn5Si3-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La15MoxGe9 crystallizes in non-centrosymmetric hexagonal structure P63mc (#186) with lattice parameters a = b = 15.495(5) Å and c = 6.917(2) Å. The refinement on single X-ray diffraction data show that interstitial...
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Synthesis, physical and chemical properties of polyetherurethanes modified by natural antioxidant
PublikacjaOtrzymano nowe polieterouretany modyfikowane witaminą E. Ten naturalny przeciwutleniacz związany został z makrocząsteczkami w postaci bocznych odgałęzień poprzez wiązanie eterowe lub uretanowe, zależnie od użytego w syntezie jednego z dwóch rodzajów otrzymanych uprzednio monomerów. Polimery scharakteryzowano mierząc wytrzymałość na rozciąganie i twardość oraz absorpcję wody i oleju słonecznikowego. Odporność chemiczną badano oznaczając...
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Crystal structure and physical properties of a novel ternary compound La15Mo Ge9
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Physical crosslinking of hyaluronic acid in the presence of phospholipids in an aqueous nano-environment
PublikacjaHyaluronic acid and phospholipids are two components in the synovial joint cavity that contribute to joint lubrication synergistically. Molecular dynamics simulations were performed and hydrogen bonds in hyaluronic acid were analyzed to identify specific sites that are responsible for its physical cross-linking. Two molecular masses of hyaluronic acid, 10 kDa and 160 kDa, were considered. We use molecular dynamics simulations and...
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Activating Public Space: How to Promote Physical Activity in Urban Environment
PublikacjaPhysical activity is an essential component of a healthy lifestyle. The quality and equipment of urban public space plays an important role in promoting physical activity among people (residents, tourists). In order for recreation and sports activities to be undertaken willingly, in a safe and comprehensive manner, certain spatial conditions and requirements must be met. The distinctive feature of contemporary large cities is the...
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The Relation Between Art and Physical Activity in the Public Space of the Contemporary City
PublikacjaArt has always been and still is a mirror in which human activity is reflected. One of the basic human activities is physical activity, thanks to which humans are able to satisfy their needs, improve health and also function in society. Therefore, there are different relationships between physical activity and art. Both of them are present in the public space of cities and this aspect of connection is addressed in the article. The...
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Physical activity of tourism and recreation students in terms of accressibility to open areas
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An Investigation of the Thermal Transitions and Physical Properties of Semiconducting PDPP4T:PDBPyBT Blend Films
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Physical modelling of water flow in 'Wild River' type water slide
PublikacjaPrzedstawiono wyniki fizycznego modelowania przepływu w zjeżdżalni wodnej typu Dzika Rzeka. Badania dotyczyły obiektu należącego do parku wodnego "Świat Wodny Nemo" w Sopocie. Eksperymenty przeprowadzono w Laboratorium Hydrauliki i Inżynierii Środowiska Politechniki Gdańskiej. Zaobserwowany w systemie kanałów i zbiorników przepływ wody można ocenić jako szybkozmienny. Wskutek zmian spadku dna kanałów oraz łuków trasy zjazdu obserwowano...
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Law regulations against physical calculations - problems in water and sewage management
PublikacjaW pracy zostały opisane przykłady trzech typów problemów w zakresie gospodarki wodno-ściekowej, z jakimi można spotkać się w związku z wejściem w życie przepisów uwzględniających obowiązujące w tej dziedzinie dyrektywy Unii Europejskiej. Są to m.in. problemy ze zbyt szeroką możliwością interpretacji pewnych zapisów, problemy związane z nieuwzględnianiem w przepisach praw fizyki, a także brak ustawowej regulacji pewnych zagadnień.
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Exercise-induced fatigue impairs visuomotor adaptability in physical education students
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Dynamic Execution of Engineering Processes in Cyber-Physical Systems of Systems Toolchains
PublikacjaEngineering tools support the process of creating, operating, maintaining, and evolving systems throughout their lifecycle. Toolchains are sequences of tools that build on each others' output during this procedure. The complete chain of tools itself may not even be recognized by the humans who utilize them, people may just recognize the right tool being used at the right place in time. Modern engineering processes, however, do...
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Rigid polyurethane foams with different flame retardants and their physical and mechanical properties
PublikacjaRigid polyurethane foams (PUFs) containing 3, 6 or 9 % of one of of two selected fire retardants (FR): oligomeric ethyl ethylene phosphate (Fyrol PNX) and expandable graphite (EG) were prepared, inspected and compared to foam without that fillers as the control. The thermal stability of PUFs was described by horizontal test according to norm: UL 94 HB. Compressive strength and physical properties (density, fragility and water absorption)...
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Objects classification based on their physical sizes for detection of events in camera images
PublikacjaIn the paper, a method of estimation of the physical sizes of the objects tracked in the video surveillance system, and a simple module for object classification based on the estimated physical sizes, are presented. The results of object classification are then used for automatic detection of various types of events in the camera image.
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Physical properties of the uranium ternary compounds U3Bi4M3 (M=Ni,Rh)
PublikacjaW pracy dyskutowany jest wzrost kryształów i właściwości fizyczne dwóch, nowych, izostrukturalnych związków U3Bi4Ni3 i U3Bi4Rh3. Pierwszy z nich jest nie-metalem, w drugim obserwowany jest tzw. ferromagnetyczny kwantowy punkt krytyczny.