24,010 Works

Dynamics of a linear pneumatic actuator with 63 mm piston diameter and 150 mm stroke subjected only to a mass load of 750 g

Szymon Grymek, Tomasz Kiczkowiak & Edward Maluszycki
The aim of the study was to determine the dynamics of a linear pneumatic cylinder subjected only to mass load. An actuator of one of the well known European manufacturers was tested.The experiment were to measure pressure changes in both chambers of the actuator and the position of the piston during stroke and retracting. The test was repeated 11 times. The obtained data, besides analysis of the dynamics of the actuator, allow verification of the...

SEM micrographs of cavitation erosion-corrosion of aluminium alloy 2024 with anodic polarization

Jacek Ryl & Paweł Rysztak
The dataset contains Scanning Electron Micrographs of aluminium alloy 2024 samples made after cavitation erosion-corrosion exposure using a vibratory transducer (in accordance with ASTM G32). The experiment duration was 240 min, with cyclic cavitation exposure in on/off cycles 30s:30s. The electrolyte was 0.1 M KNO3 solution. Some samples were anodically polarized by +0.5 V with reference to open circuit potential (labeled as _pol). The samples were mounted directly underneath the ultrasonic transducer. Different levels of...

The voltage on bus bars of the main switchboard of the car carrier electrical power system at sea trials during a bow thruster start-up

Beata Pałczyńska & Tomasz Tarasiuk
The dataset is a part of the research results on the quality of supply voltage on bus bars of the main switchboard of the ship's electrical power system in different states of ship exploitation. In ships' electrical power systems, disturbances occurring in voltage waveforms on bus bars of the main switchboard are connected mainly with the processes of switching large loads on and off, such as switching on the bow thruster propulsion. The attached dataset...

Bacteriological and physicochemical monitoring of inland surface waters within the administrative boundaries of Gdańsk city in 2010

Maria Bartoszewicz
The dataset containst the results of a bacteriological and physico-chemical study of inland surface waters within the administrative boundaries of Gdańsk city in 2010.The examined material consisted of water samples collected from four lakes located within the administrative boundaries of Gdańsk, Poland.

Bacteria in the area of influence of sewage tretment plant Gdynia - Dębogórze

Maria Bartoszewicz
 The dataset contains the results of microbiological analysis of sea waters from Gulf of Puck in area of municipal sewage discharges from the Gdynia Dębogórze sewage treatment plant. The tested material consisted of water samples (surface water and bottom water) collected in 2012. The number of Enterobacteriaceae genus bacteria, number of Escherichia coli, number of intestinal enterococci were determined.

Long-term measurement of physiological parameters (3)

Małgorzata Szczerska
The data set was obtained during the project focus on the determination of changes in physiological parameters due to a stressful situation.The measurements were conducted with the system which consists e.g. sensors of temperature, skin resistance, and pulse.Long-term (up to 90 minutes) measurement of physiological parameters was performed on the healthy volunteers (female, age 45).Acronyms used into a dataset:t- time (counted every 5 seconds);R – skin resistance (HI – too high value to be measured);X...

Data from the survey on Gdańsk University of Technology graduates' assessment of studying - the year 2014

Michał Tomczak, Paweł Ziemiański & Marta Szeluga-Romańska
The dataset includes data from the survey on Gdańsk University of Technology graduates’ assessment of studying. The research refers to graduates from the year 2014. The survey was conducted in 2016, two years after the respondents obtained graduate status. The research sample included 2004 respondents. The study referred to as i.a. assessment of whether university studies provided the basis for professional work and enabled the acquisition of relevant competencies, also considering variables such as gender,...

Herbarium of Division of Marine Biology and Ecology University of Gdańsk (DMBE)

Ilona Złoch
Herbarium of Division of Marine Biology and Ecology University of Gdańsk (DMBE) is a research herbarium encompassing specimens of vascular plants and algae hosted by the Laboratory of Marine Plant Ecology at University of Gdańsk, Poland. The aim of Herbarium is to preserve marine plant and algae collections mostly from the Gulf of Gdańsk, but the herbarium also holds specimens from other parts of the world. Our overall goal is to understand plant diversity and...

Potential energy curves of NaRb dimer

Marcin Wiatr, Patryk Jasik, Józef Sienkiewicz & Hermann Stoll
This data presents potential energy curves of NaRb dimer in Hund's case (a). Calculated using Born-Oppenheimer approximation with scalar relativistic effects are included via large effective core potentials. Core polarization potentials and MRCI method is used to describe electron correlation. Dataset consists of 18 potential energy curves of ground and excited states of Sigma (5 triplet and 5 singlet states), Pi (3 triplet and 3 singlet states) and Delta (one triplet and one singlet state)...

The Chow Ring of flag manifolds

Xuezhi Zhao
Schubert calculus is the intersection theory of 19th century. Justifying this calculus is the content of the 15th problem of Hilbert. In the course to establish the foundation of algebraic geometry, Van der Vaerden and A. Weil attributed the problem to the determination of the chow ring of flag manifolds G/P, where G is a compact Lie group and P is a parabolic subgroup. This problem has been solved by Borel for the classical Lie...

Dynamics of a linear pneumatic actuator with 80 mm piston diameter and 100 mm stroke subjected only to a mass load of 1650 g

Szymon Grymek, Tomasz Kiczkowiak & Edward Maluszycki
The aim of the study was to determine the dynamics of a linear pneumatic cylinder subjected only to mass load. An actuator of one of the well known European manufacturers was tested.The experiment were to measure pressure changes in both chambers of the actuator and the position of the piston during stroke and retracting. The test was repeated 11 times. The obtained data, besides analysis of the dynamics of the actuator, allow verification of the...

Dynamics of a linear pneumatic actuator with 80 mm piston diameter and 150 mm stroke subjected only to a mass load of 1650 g

Szymon Grymek, Tomasz Kiczkowiak & Edward Maluszycki
The aim of the study was to determine the dynamics of a linear pneumatic cylinder subjected only to mass load. An actuator of one of the well known European manufacturers was tested.The experiment were to measure pressure changes in both chambers of the actuator and the position of the piston during stroke and retracting. The test was repeated 11 times. The obtained data, besides analysis of the dynamics of the actuator, allow verification of the...

Twenty years' (1996-2016) tropospheric parameters for selected EPN stations derived from GPS double-difference processing

Mariusz Figurski
Propagation of global navigation satellite systems (GNSS) signals through the Earth’s atmosphere is affected by its physical properties. Both hydrostatic and wet part of the atmosphere (mostly related with troposphere) causes delays of GNSS signal, which usually are expressed in the zenith direction (zenith hydrostatic delay - ZHD, and zenith wet delay - ZWD). The combination of these delays is called zenith tropospheric delay (ZTD). Time-space variations of ZTD reflects spatiotemporal changes of troposphere properties, such...

Epitaph of Ferber family in St. Mary's Church in Gdańsk

Grzegorz Kotłowski & Elżbieta Starek
The data set concerns epigraphy. It refers to the epitaph placed in St. Mary’s Church in Gdańsk, that is dedicated to one of the greatest family in Gdańsk – family Ferber, and one of its member – Konstantin Ferber, whose official career was crowned with the function of mayor of city. The epitaph was erected by his brother John Ferber, the juror, councilor and judge of Gdańsk. Data set contains one general photo of the...

Determination of viscosity changes of protein hydrolyzate solutions depending on shear rate

Robert Tylingo & Szymon Mania
Rheological characteristics of connective tissue protein solutions were made on the basis of viscosity measurement using a Brookfield viscometer using LV SC4 - 27 spindles and shear rate of 85 s-1 (Fig. 1). Solutions of protein hydrolysates with a concentration of 2% in 0.5M acetic acid were prepared. The data allowed to characterize the used protein hydrolysates and evaluate their functional parameters as substances modifying rheologies of food products stored in refrigerated conditions. Fig.1. Brokfield rotational...

The AFM micrographs of pitting corrosion evolution on high-alloy steel 1.4301

Artur Zieliński
The dataset contains the results of topographic imaging of high-alloy stainless steel 1.4301 on which the pitting corrosion process was induced by electrochemical methods. The study of the effects of a local attack allows for conclusions about the intensity and mechanism of this type of corrosion. The file contains atomic force microscopy (AFM) data obtained in micrometric scales using the tapping technique. Similar studies were carried out as part of the study with the designation...

The scanning spreading resistance microscopy (SSRM) of some CoCrMo alloys subjected to electrochemical litography

Artur Zieliński
The dataset contains the results of the experiment consisting of performing electrochemical lithography on the surface of the CoCrMo prosthetic alloy. First, by applying local anodic polarization, oxide structures were created on the surface of the material. Next, they were imaged in the SSRM (scanning spreading resistance microscopy) mode to visualize the topographic and electrical differentiation of the modified surface. The files are in binary form, the contents are maps of various physical quantities in...

Measurement spectrum obtained with the use of ZnO coated microsphere-based fiber-optic sensor - 180 Celsius degrees

Paulina Listewnik & Małgorzata Szczerska
Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements between 100°C and 300°C, is presented. The main advantage of integrating a fiber-optic microsphere with a sensing device is the possibility of monitoring the integrity of the sensor head in real-time, which allows for higher accuracy during measurements. The study has demonstrated that ZnO ALD coated microsphere-based sensors can be successfully used...

Measurement spectrum obtained with the use of ZnO coated microsphere-based fiber-optic sensor - 200 Celsius degrees

Paulina Listewnik & Małgorzata Szczerska
Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements between 100°C and 300°C, is presented. The main advantage of integrating a fiber-optic microsphere with a sensing device is the possibility of monitoring the integrity of the sensor head in real-time, which allows for higher accuracy during measurements. The study has demonstrated that ZnO ALD coated microsphere-based sensors can be successfully used...

SEM micrographs of boron-doped nanocrystalline diamond-carbon nanospikes

Jacek Ryl, Mateusz Ficek & Robert Bogdanowicz
This dataset contains the Scanning Electron Microscopy (SEM) micrographs taken for rich boron-doped carbon crystalline nanospikes/nanograss structures, at different magnifications, encoded in the labels of the images. The micrographs were made using Hitachi S-3400N SEM microscope in secondary electron mode under 20 kV accelerating voltage. No additional pre-treatment procedure was used. Full physicochemical studies on this novel material may be found in ACS Applied Materials and Interfaces article: 10.1021/acsami.9b17942, where this material was used as...

Measurement spectrum obtained with the use of ZnO coated microsphere-based fiber-optic sensor - 160 Celsius degrees

Paulina Listewnik & Małgorzata Szczerska
Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements between 100°C and 300°C, is presented. The main advantage of integrating a fiber-optic microsphere with a sensing device is the possibility of monitoring the integrity of the sensor head in real-time, which allows for higher accuracy during measurements. The study has demonstrated that ZnO ALD coated microsphere-based sensors can be successfully used...

Reinforced aluminium reference measurement R63 – earlier tests

Jacek Łubiński & Rafał Jendrzejewski
Preliminary testing of aluminium alloys against 100Cr6 steel ball. Preparation to tests on wear of Al6061 alloy in ball on disk experiment. Research on the reinforcing effect of aluminium alloy injection reinforcement with TiN and WC powders in laser remelted surface layer.

Dynamics of S-unimodal maps used in population modeling.

Zuzanna Kontna
S-unimodal maps are maps of the interval with negative Schwarzian derivative and having only one turning point (such that the map is increasing to the left of the turning point and decreasing to the right of it). Theory of S-unimodal maps is now a well-developed branch of discrete dynamical systems, including famous Singer theorem which implies existence of at most one attracting periodic orbit, necessarily attracting the turning point. Despite these special properties, S-unimodal maps...

Measurement spectrum obtained with the use of ZnO coated microsphere-based fiber-optic sensor - 280 Celsius degrees

Paulina Listewnik & Małgorzata Szczerska
Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements between 100°C and 300°C, is presented. The main advantage of integrating a fiber-optic microsphere with a sensing device is the possibility of monitoring the integrity of the sensor head in real-time, which allows for higher accuracy during measurements. The study has demonstrated that ZnO ALD coated microsphere-based sensors can be successfully used...

Measurement spectrum obtained with the use of ZnO coated microsphere-based fiber-optic sensor - 120 Celsius degrees

Paulina Listewnik & Małgorzata Szczerska
Application of a microsphere-based fiber-optic sensor with 200 nm zinc oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) method, for temperature measurements between 100°C and 300°C, is presented. The main advantage of integrating a fiber-optic microsphere with a sensing device is the possibility of monitoring the integrity of the sensor head in real-time, which allows for higher accuracy during measurements. The study has demonstrated that ZnO ALD coated microsphere-based sensors can be successfully used...

Registration Year

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Affiliations

  • Gdańsk University of Technology
    83
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    19
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    5
  • University of Pisa
    4
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    2
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    2
  • Institute of Meteorology and Water Management
    2
  • Florida Gulf Coast University
    2
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    1
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