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- Publikacje 14545 wyników po odfiltrowaniu
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Wyniki wyszukiwania dla: FWD test
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Dynamics analysis of footbridge mode shapes the s8 expressway on the basis of the results of in situ tests
PublikacjaNon-destructive diagnostics for structure may use dynamic measurements realized during vibrations of a facility induced by dynamic environmental impact, enforced by the use of inductors or impulse impact. Dynamic tests and the analysis were undertaken for a footbridge situated over the expressway S8. The studies in situ allowed for dynamic characteristics to be determined: frequency, shape modes and damping for respective frequency...
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Timed rolling and rising tests in Duchenne muscular dystrophy ambulant boys: a feasibility study
PublikacjaBACKGROUND: Functional activities are extensively used in motor assessments of patients with Duchenne muscular dystrophy. The role of timed items has been reported as an early prognostic factor for disease progression. However, there are two functional activities that are not widely assessed in clinical practice among Duchenne muscular dystrophy patients: rolling and bed rising. This study aimed to investigate whether the 360-degree...
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Exploring the Usability and User Experience of Social Media Apps through a Text Mining Approach
PublikacjaThis study aims to evaluate the applicability of a text mining approach for extracting UUX-related issues from a dataset of user comments and not to evaluate the Instagram (IG) app. This study analyses textual data mined from reviews in English written by IG mobile application users. The article’s authors used text mining (based on the LDA algorithm) to identify the main UUX-related topics. Next, they mapped the identified topics...
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New, fast and cheap prediction tests for BRCA1 gene mutations identification in clinical samples.
PublikacjaDespite significant progress in cancer therapy, cancer is still the second cause of mortality in the world. The necessity to make quick therapeutic decisions forces the development of procedures allowing to obtain a reliable result in a quick and unambiguous manner. Currently, detecting predictive mutations, including BRCA1, is the basis for effectively treating advanced breast cancer. Here, we present new insight on gene mutation...
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Application of Text Analytics in Public Service Co-Creation: Literature Review and Research Framework
PublikacjaThe public sector faces several challenges, such as a number of external and internal demands for change, citizens' dissatisfaction and frustration with public sector organizations, that need to be addressed. An alternative to the traditional top-down development of public services is co-creation of public services. Co-creation promotes collaboration between stakeholders with the aim to create better public services and achieve...
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Vessel Energy Requirement Prediction from Acceleration Stage Towing Tests on Scale Models
PublikacjaOne of the most crucial tasks for naval architects is computing the energy required to meet the ship’s operational needs. When predicting a ship’s energy requirements, a series of hull resistance tests on a scale model vessel is carried out in constant speed stages, while the acceleration stage measurements are ignored. Another important factor in seakeeping analysis is the ship’s hydrodynamic added mass. The second law of dynamics...
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Znaczenie mocy testu statystycznego w analizie diagnostycznej okrętowego silnika o ZS
PublikacjaW artykule przedstawiono sposób interpretacji błędów pierwszego (α) i drugiego (β) rodzaju oraz wartości krytycznej Fkr rozkładu Fishera-Snedecora. Omówiono dwa sposoby weryfikacji istotności wpływu parametru wejściowego na wyjściowy. Przeanalizowano znaczenie mocy testu statystycznego M w diagnostyce parametrycznej okrętowych silników o ZS. Przeprowadzono analizę wpływu wartości poziomu istotności na wartość krytyczną statystyki...
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Ella4Life virtual assistant - user centered design strategy - evaluation following labolatory tests
PublikacjaIn the paper, we summarize the evaluation of Anne4Care system after laboratory tests. A group of end users, seniors over 55 years of age, rated a virtual assistant by completing a questionnaire. The objectives of the pilot evaluations are mainly to assess the feasibility, usability, acceptance and functionality of the system and the ability of the potential target user to use the system and receive valuable information from it...
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Nanoindentation tests titanium alloy Ti-6Al-4V after interference laser treatment
PublikacjaThe study aimed was to assess selected mechanical properties of surface layers obtained after interference laser treatment – DLIL of titanium alloy Ti-6Al-4V used for implants. The samples were melted in still air at room temperature, for this purpose Nd:YAG laser was used, the number of laser shots was variable. Next, nanoindentation tests were performed, based on which Young’s modulus and nanohardness in the obtained surface...
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Ball on disk test AT4_11-Al2O3-r25
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 25 mm. Disk material: Al6061 TiN powder injected (AT4_11).
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Ball on disk test AT4_41-Al2O3-r25
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 25 mm. Disk material: Al6061 TiN powder injected (AT4_41).
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Ball on disk test AT3_2-Al2O3-r15
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 TiN powder injected (AT3_2).
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Ball on disk test AT3_21-Al2O3-r25
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 25 mm. Disk material: Al6061 TiN powder injected (AT3_21).
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Ball on disk test AT4_1-Al2O3-r15
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 TiN powder injected (AT4_1).
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Ball on disk test AW4_11-Al2O3-r25
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 25 mm. Disk material: Al6061 WC powder injected (AW4_11).
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Ball on disk test AW4_4-Al2O3-r15
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 WC powder injected (AW4_4).
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Ball on disk test AW4_1-Al2O3-r15
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 WC powder injected (AW4_1).
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Ball on disk test AT4_4-Al2O3-r15
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 15 mm. Disk material: Al6061 TiN powder injected (AT4_4).
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Ball on disk test AW4_41-Al2O3-r25
Dane BadawczeHard particle reinforced Al6061 alloy testing. Laser remelting and kinetic injection of particulate material. Ball on disc tribological test. Ball material: Al2O3. Ball diameter: 5 mm. Sliding path radius: 25 mm. Disk material: Al6061 WC powder injected (AW4_41).
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EH36 steel for shipbuilding - tensile test record
Dane BadawczeThe basic method of ductility designation of structural steels is the Charpy impact test. The test consists of a single strike of the specimen using a Charpy pendulum. Its result is the value of work necessary to break a specimen at a test temperature. Despite its many advantages, such as its short implementation time and low costs, it has its disadvantages,...
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Tribological test for evaluation of CF30 Black PEEK
Dane BadawczeSample numner BL03 and BL04 made of PEEK CF30 (black color) tribologicaly tested with sliding speed up to 1,8 m/s and up to 14 MPa of nominal load under water lubrication.
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Multi Parameter Sliding Test Result Evaluation for the Selection of Material Pair for Wear Resistant Components of a Hydraulic Motor Dedicated for Use with Environmentally Friendly Working Fluids
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Lubricant property and rolling contact fatigue test of oil-in-water emulsion type HFA-E and oil Total Azolla 46 as working liquids in hydraulic systems
PublikacjaW artykule scharakteryzowano i opisano wyniki badań własności smarnych wody destylowanej, emulsji wodno-olejowej typu HFA-E (1% oleju w wodzie) sporządzonej na bazie koncentratu Isosynth VX110BF, oleju Total Azolla 46 i samego koncentratu Isosynth VX110BF (tylko dla porównania z olejem, emulsją i wodą). W artykule pokazano wyniki badań pittingu z użyciem wody, emulsji i oleju jako środków smarnych. Ponadto w artykule przedstawiono...
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Multi parameter sliding test result evaluation for the selection of material pair for wear resistant components of a hydraulic motor dedicated for use with environmentally friendly working fluids
PublikacjaW referacie przedstawiono zastosowanie metody badań tribologicznych pozwalającej na dokonywanie doboru najlepszych skojarzeń tribologicznych z wybranej populacji poprzez parametryczną ocenę wyników z wielu rodzajów testów tribologicznych wykonywanych na identycznych skojarzeniach materiał - smar - materiał.
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Eine Eeue Technik zur Präzisen Rissfortschrittsmessung im DCB oder im Keilversuch = A novel technique for precise crack length measurement in the DCB or wedge test
PublikacjaDiverse methods have been tried to study crack length, most basic relying on direct, or microscopic, observation of the crack tip position. Optical correlation, both lasermoiré and speckle interferometry, a single strain gauge and displacement sensorshave also been employed. Crack length measurement is, however, delicate. We present a novel method making use of strain gauges attached to one of the adherends.
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Multi Parameter Sliding Test Result Evaluation for The Selection of Material Pair for Wear Resistant Components of a Hydraulic motor Dedicated for Use With Environmentally Friendly Working Fluids
PublikacjaIn the paper the method and results are presented of the testing of tribological performance of a number of hard materials available commercially. The tests consisted in unidirectional sliding with liquid lubrication. The load and velocity regime chosen were similar to a standard four-ball lubricity test with constant velocity and load increasing over time. The regime was modified in such a way that over the initial part of the...
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Structural and molecular indices in common carp (Cyprinus carpio L.) fed n-3 PUFA enriched diet
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Influence of two cultivars of persimmon on atherosclerosis indices in rats fed cholesterol-containing diets: investigation in vitro and in vivo
PublikacjaCelem badań było oszacowanie wpływu dwóch odmian śliwy daktylowej na niektóre parametry arteriosklerozy u szczurów karmionych dietą zawierającą cholesterol. W ramach badań in vitro badano owoce dwóch odmian śliwy daktylowej jako dodatku do diety szczurów na zawartość związków bioaktywnych (polifenole, flawonoidy, flawonole, taniny, kartenoidy i kwas askorbinowy) i na aktywność przeciwutleniającą. W trakcie badań in vivo różnych...
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Wpływ pochylenia wiązek promieniowania anten sektorowych na zasięg i pojemność interfejsu radiowego WCDMA/FDD
PublikacjaW referacie omówiono wpływ mechanizmów elektrycznego i mechanicznego pochylania wiązki promieniowania anten sektorowych na zasięg i pojemność interfejsu radiowego WCDMA/FDD systemu UMTS. Przedstawiono wyniki badań symulacyjnych wpływu obu tych mechanizmów na charakterystyki systemu.
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Coplanar Waveguide-Fed Broadband Microwave Devices with (or without) a Thin Dielectric Substrate for Use in Flexible Electronic Systems
PublikacjaTwo examples of microwave devices, fed by a coplanar waveguide and realized on a thin substrate (or without such a substrate), are employed to investigate the influence of devices’ curvatures and the proximity of different materials on their parameters. To perform the tests, a broadband antenna and a low-pass filter are chosen. A feeding coplanar waveguide is realized on a dielectric material brick attached to an SMA connector...
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_5
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_5
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_5
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_2
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_2
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_v_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_v_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_h_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 009_h_3
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_5
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 039_h_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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3D printed ABS thermoplastic vs. steel. Dry sliding wear test in constant load & velocity ring on flat configuration. Test parameters: print layer thickness and orientation. Test symbol: 019_v_4
Dane BadawczeData gathered in sliding ring-on-block (flat contact) tribological experiment. Materials: alloy steel (heat treated) vs. ABS plastic.
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Lower Rim Substituted p-tert-Butyl-Calix[4]arene. Part 16. Synthesis of 25, 26, 27, 28-tetrakis(piperidinethiocarbonylmethylene)-p-tert-butylcalix[4]arene and its interaction with metal ions
PublikacjaThe synthesis, characterisation and X-ray crystal structures of p-tert-butyl-calix[4]arenethioamide L and its complex with lead L-Pb2+ is reported. The cation-binding properties in solution have been assessed by liquid-liquid extraction of the metal picrates from water into dichloromethane and by stability constants determination in acetonitrile using UV-absorption spectrophotometry or potentiometry. The compound was used as active...
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Modelling of the soft X-ray tungsten spectra expected to be registered by GEM detection system for WEST
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