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Search results for: ABDOMINAL WALL
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Seiberg-Witten invariants the topological degree and wall crossing formula
PublicationFollowing S. Bauer and M. Furuta we investigate finite dimensional approximations of a monopole map in the case b 1 = 0. We define a certain topological degree which is exactly equal to the Seiberg-Witten invariant. Using homotopy invariance of the topological degree a simple proof of the wall crossing formula is derived.
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Optimization of purification and selective burning of single-wall carbon nanotubes
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Efficient production of B-substituted single-wall carbon nanotubes
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Fe analysis of loadson the silo wall and stresses in the silo structure.
PublicationArtykuł przedstawia numeryczne wyniki naporu materiałów sypkich na ścinanie podczas przepływu w silosach z lejem w kształcie osiowo-symetrycznego stożka.
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Evolution of shear localisation in earth pressure problems of a retaining wall
PublicationPrzedstawiono wyniki numerycznej analizy formacji stref ścinania w materiale sypkim podczas problemów parcia i odporu gruntu za ścianą oporową. Zachowanie suchego piasku podczas testów ściskania w płaskim stanie odkształcenia było analizowane stosując metodę elementów skończonych i mikropolarne hypoplastyczne prawo konstytutywne. Podczas obliczeń numerycznych zwrócono szczególną uwagę na wpływ różnych przemieszczeń ściany na lokalizację...
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Whole-Body Cryotherapy Is an Effective Method of Reducing Abdominal Obesity in Menopausal Women with Metabolic Syndrome
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Assessment of particular abdominal aorta section extraction from contrast-enhanced computed tomography angiography
PublicationThe aim of this work is to improve the accuracy of extraction of a particular abdominal aorta section and to reduce the distortion in three-dimensional Computed Tomography Angiography (CTA) images. Imaging modality and quality plays crucial role in the medical diagnostic process, thus ensuring high quality of images is essential at every stage of acquisition and processing.Noise is defined as a disturbance of the image quality...
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Accuracy of Pretreatment Ultrasonography Assessment of Intra-Abdominal Spread in Epithelial Ovarian Cancer: A Prospective Study
PublicationThe aim of this study was to test the accuracy of ultrasonography performed by gynecological oncologists for the preoperative assessment of epithelial ovarian cancer (EOC) spread in the pelvis and abdominal cavity. A prospective, observational cohort study was performed at a single tertiary cancer care unit. Patients with suspected EOC were recruited and underwent comprehensive transvaginal and abdominal ultrasonography performed...
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Rotating rod and ball
PublicationWe consider a mechanical system consisting of an infinite rod (a straight line) and a ball (a massless point) on the plane. The rod rotates uniformly around one of its points. The ball is reflected elastically when colliding with the rod and moves freely between consecutive hits. A sliding motion along the rod is also allowed. We prove the existence and uniqueness of the motion with a given position and velocity at a certain time...
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Rotating rod and ball
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Novel catalysts for low temperature synthesis of single wall carbon nanotubes
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Single-wall carbon nanotubes based anticancer drug delivery system
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Iron filled single-wall carbon nanotubes – A novel ferromagnetic medium
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Ultrastructural variability of macrophages in the wall of selected aorto-coronary bypass grafts
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Numerical calculation wall pressure and stresses in cylindrical silos withconical hopper
PublicationOmówiono wyniki numerycznego obliczania naporu materiału sypkiego na ściany silosu. Obliczenia wykonano stosując metodę elementów skończonych i sprężysto idealnie plastyczne prawo konstytutywne według Druckera-Pragera. W analizie uwzględniono wpływ osiowy i mimośrodowy.
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Tensile and flexural moduli for human orbital wall bones – comparative study
PublicationThe main aims of the current research were: (1) to analyze in detail the tensile modulus and ultimate tensile strength (UTS) of orbital wall bones separately for the left and right orbit of the same cadaver and (2) to compare the obtained results with a flexural modulus of the left and right orbit reported earlier by A. C. van Leeuwen et al. [14]. A set of 54 specimens of orbital superior and/or medial walls harvested from 16 human...
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An approach for estimation of water wall degradation within pulverized-coal boilers
PublicationThe main aim of this paper is to estimate the lifetime of water walls of pulverized-coal boilers at nominal conditions as well as after degradation of water tubes. An approach for a pulverized-coal chamber degradation process has been formulated based on operational and experimental data. This model was formulated using on-line state monitoring of a pulverized coal burner with aim of preventing the fireplace screens from high degradation...
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Static and dynamic modelling blow- out type trauma of orbital wall
PublicationAuthors of the paper present initial results of finite element analysis of a blow-out type trauma of orbital wall. The research is liked with laboratory tests for the Young’s modulus of bones evaluation. In the finite element analysis the neighbourhood of orbital wall is modelled by triangle thin shell finite elements. In the paper results of nonlinear static and transient dynamic analysis (including damping) are compared. The...
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Multi‐wall carbon nanotubes – a vehicle for targeted Irinotecan drug delivery
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Reduced diameter distribution of single-wall carbon nanotubes by selective oxidation
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Synthesis and electronic properties of B-doped single wall carbon nanotubes
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Using CFD software for the evaluation of hygrothermal conditions at wall-window perimeters
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Microencapsulation of fish oil – determination of optimal wall material and encapsulation methodology
PublicationFor the first time, we present a meta-analysis of experimental and literature data to determine which microencapsulation methodology, and which wall material are best suited to protect fish oil. Our analysis covered a period of several decades of research (1984–2018). The analysis was conducted on 196 literature data-points, and 16 data-points determined experimentally for this publication. PLS regression was used to determine...
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Cathepsin G deficiency reduces periaortic calcium chloride injury-induced abdominal aortic aneurysms in mice
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Wpływ geometrii i szorstkości ścian na wielkość naporu materiału sypkiego na dno silosu = Influence of geometry and wall roughness of silo wall on bottom vertical pressure
PublicationW pracy przedstwiono analizę wpływu wysokości i szorstkości ścian silosu cylindrycznego na rozkład naporu na ściany i dno. Badania przeprowadzono dla piasku bezkohezyjnego.
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WALT WHITMAN QUARTERLY REVIEW
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OSGOODE HALL LAW JOURNAL
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Seton Hall law review
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Silver filled single-wall carbon nanotubes—synthesis, structural and electronic properties
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Tensile modulus of human orbital wall bones cut in sagittal and coronal planes
PublicationIn the current research, 68 specimens of orbital superior and/or medial walls taken from 33 human cadavers (12 females, 21 males) were subjected to uniaxial tension untill fracture. The samples were cut in the coronal (38 specimens) and sagittal (30 specimens) planes of the orbital wall. Apparent density (ρapp), tensile Young’s modulus (E-modulus) and ultimate tensile strength (UTS) were identified. Innovative test protocols were...
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Experimental Determination of Limit Adhesive Shear Strtess between Solid Wall and Liquid
PublicationTheoretically slip of a fluid with respect to the solid wall should occur even at a very low velocity of motion. However theoretical analysisand some empirical data suggest that there must be a limit value of shear stress, below which the slip does not appear. A simple metyhod of this stress determination was proposed in the paper.
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Electronic structure and optical properties of boron doped single-wall carbon nanotubes
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Experimental Study on Dynamics of Wooden House Wall Panels with Different Thermal Isolation
PublicationWood frame buildings are very popular in regions that are exposed to different dynamic excitations including earthquakes. Therefore, their seismic resistance is really important in order to prevent structural damages and human losses. The aim of the present paper is to show the results of experimental tests focused on the dynamic response of wall panels of a wooden frame building with thermal isolation made of mineral wool and...
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A walk Around Gdańsk for Physicists
PublicationI provide a guide to Gdańsk (Danzig) and some of its suburbs, focusing on sites of particular interest to physicists. These include the Town Hall with the old Gdańsk standards of length at its entrance, the solar dial of 1588 on its corner, and its bell tower; the Naturalists Society; the medieval harbor crane; the medieval astronomical clock in St. Mary's Church; the late nineteenth-century lighthouse and time ball; and sites...
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Pharmacokinetics and pharmacodynamics of propofol and fentanyl in patients undergoing abdominal aortic surgery - a study of pharmacodynamic drug-drug interactions
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Abdominal Aortic Aneurysm segmentation from contrast-enhanced computed tomography angiography using deep convolutional networks
PublicationOne of the most common imaging methods for diagnosing an abdominal aortic aneurysm, and an endoleak detection is computed tomography angiography. In this paper, we address the problem of aorta and thrombus semantic segmentation, what is a mandatory step to estimate aortic aneurysm diameter. Three end-to-end convolutional neural networks were trained and evaluated. Finally, we proposed an ensemble of deep neural networks with underlying...
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Experimental investigation of the flow pattern and wall pressure distribution in a silo with double-cone insert
PublicationArtykuł opisuje przeprowadzone badania przepływów silosowych i naporu materiałów sypkich podczas napełniania i opróżniania silosu o średnicy 2.5 m wyposażonego we wkładkę "podwójny stożek". Badania przeprowadzane były w Instytucie Badawczym Tel-Tek w Norwegii. Materiałem użytym był suchy piasek. Napór na ścianę mierzony był bezpośrednio za pomocą 10 czujników wbudowanych w ścianę. Badania eksperymentalne pokazały duży wpływ wkładki...
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The influence of a cone-in-cone insert on flow pattern and wall pressure in a full-scale silo
PublicationArtykuł opisuje przeprowadzone badania przepływów silosowych i naporu materiałów sypkich podczas napełniania i opróżniania silosu o średnicy 2.5 m wyposażonego we wkładkę "stożek w stożku''. Badania przeprowadzane były w Instytucie Badawczym Tel-Tek w Norwegii. Materiałem użytym był suchy piasek. Napór na ścianę mierzony był bezpośrednio za pomocą 10 czujników wbudowanych w ścianę. Badania eksperymentalne pokazały duży wpływ wkładki...
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Building wall boundary condition in mathematical modelling of built-up area rapid inundation
PublicationPrzedstawiono wyniki modelowania powodzi miejskiej przy pomocy dwuwymiarowych równań de Saint-Venanta. Równania rozwiązano metodą objętości skończonych. Przebadano wpływ rodzaju warunku brzegowego zadawanego na brzegach zamkniętych na wyniki obliczeń. Wyniki obliczeń porównano z pomiarami laboratoryjnymi, wykonanymi w Laboratorium hydraulicznym WILiŚ Politechniki Gdańskiej.
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Numerical investigation of conjugate heat transfer in the presence of two fluid separated by a rigid wall
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The protocol for using elastic wall model in modeling blood flow within human artery
PublicationMedical diagnostic tools will play a major role in the future for an effective patient treatment and reduction their mortality, related to the cardiovascular system diseases (CVDs). There is an urgent need for developing diagnostic procedure to be robust, reliable, accurate and efficient, in the framework of a paradigm shift. Application of numerical techniques is seen as a perspective tool for such purpose. Nevertheless, existing...
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Across-shift changes in upper airways after exposure to bacterial cell wall components
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On the interpretation of high-resolution x-ray spectra from JET with an ITER-like wall
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Changes in the Cell Wall Proteome of Leaves in Response to High Temperature Stress in Brachypodium distachyon
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Formation and electronic properties ofBC3single-wall nanotubes upon boron substitution of carbon nanotubes
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Cell Wall Epitopes and Endoploidy as Reporters of Embryogenic Potential in Brachypodium Distachyon Callus Culture
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Numerical calculations of wall pressures and stresses in steel cylindrical silos with concentric and eccentric hoppers
PublicationArtykuł przedstawia numeryczną analize naprężeń w płaszczu silosa. Porównane zostały wyniki dla silosów o przepływie centrycznym i mimośrodowym.
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Discrete simulations of shear zone patterning in sand in earth pressure problems of a retaining wall
PublicationW artykule przedstawiono wyniki doświadczalne i teoretyczne naporu piasku na ściankę szczelną. Obliczenia wykonano stosując metodę elementów dyskretnych. Wyniki porównano z wynikami uzyskanymi metodą elementów skończonych na bazie mikropolarnego hipoplastycznego prawa materiałowego oraz z wynikami doświadczalnymi uzyskanymi metodą korelacji obrazów cyfrowych. Wykonano obszerne studia parametryczne.
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DEM Analyses of Interface Behaviour Between Cohesionless Sand and Rigid Wall of Different Roughness
PublicationArtykuł dotyczy trójwymiarowych symulacji numerycznych quasi-statycznego ścinania między niespoistym piaskiem a sztywnymi ścianami w aparacie bezpośredniego ścinania ścian. Chropowatość ścian sztywnych wahała się od gładkiej do bardzo szorstkiej. Na górną ścianę działało stałe ciśnienie normalne. Symulacje numeryczne przeprowadzono metodą elementów dyskretnych (DEM). Ziarna piasku opisywano jako kulki z momentami kontaktowymi...
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PAD4, LSD1 and EDS1 regulate drought tolerance, plant biomass production, and cell wall properties
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