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Search results for: abdominal wall
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Modeling of a rock fall using the discrete element method and study of the seismic signal
PublicationW artykule przedstawiono opis fal sejsmicznych, zastosowanie dyskretnej metody elementów do opisu obrywu skalnego, opis programów obliczeniowych oraz obliczenia numeryczne wg. podanych programów obliczeniowych.
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Modeling of a rock fall using the discrete element method and study of the seismic signal
PublicationMechanizm dużego spadającego bloku skalnego lub lawiny pozostaje nadal słabo rozpoznany zarówno w zakresie pęknięć jak i procesów propagacji. Jedynie ilościowe dane, które aktualnie są mierzone i uchwytne podczas spadania skały, zarejestrowane są jako sejsmiczne sygnały przez szereg sejsmografów. Właściwości sygnału (amplituda, trwanie, częstotliwość) są wyraźnie powiązane z cechami spadania (masa, wysokość spadania, odległość...
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Detrimental effects of chemotherapeutics and other drugs on the endothelium: A call for endothelial toxicity profiling
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Advances in engineering of diameter and distribution of the number of walls of carbon nanotubes in alcohol CVD
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Characteristics, Chemical Modification Processes as well as the Application of Silica and its Modified Forms
PublicationThe variety of chemical modifications of the surface of silica and its modified forms cause thesematerials to find a consistently wider scope of application. In the publication, the characteristicsof silica, silica gel, aerogel and xerogel are presented. The obtainment, application and propertiesof these materials are discussed. Methods of chemical modifications of surface structures withthe use of different chemical compounds...
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Te use of acoustic emission for assessment of the oil lubricity in a four-ball tester
Publicationin view of the increased dynamic and temperature load in the compression-ignition engine tribological systems, particular attention is drawn to the problem of such lubrication of the friction nodes that after breaking the boundary layer it could be restored without any wear occurring. therefore, an idea has been devised of introducing to friction nodes, with the lubrication oils, of new substances (operational preparations) modifying...
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The Influence of Tool Wear on the Vibrations During Ball end Milling of Hardened Steel
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Mechanical and technological aspects of micro ball end milling with various tool inclinations
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Apprendere camminando.Il metodo della Jane’s Walk per riscoprire San Lorenzo
PublicationTratta dal libro rivoluzionario che Jane Jacobs, attivista americana, ha scritto negli anni Sessanta e che ben presto è diventato un importante riferimento per la partecipazione dei cittadini nella progettazione urbana, questa citazione ben esprime l’approccio attraverso il quale ci siamo avvicinate alla riscoperta di San Lorenzo. Quartiere della città storica molto conosciuto, San Lorenzo si è rivelato in grado di disvelare paesaggi...
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Simplified stability analysis of steel cylindrical silos with corrugated walls and vertical columns
PublicationIn the paper a simplified stability analysis of steel cylindrical silos composed of corru¬gated walls and vertical open-sectional columns was proposed. The whole 3D silo was modeled as a single column resting on elastic foundation provided by the silo walls. In proposed formula for the calculation of the foundation stiffness the curvature of the silo walls was taken into account. Three different analyses were carried out using...
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Urban Walk Architecture Talk / The People's Smart Sculpture / Post-workshop exhibition
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Injectable poloxamer/graphene oxide hydrogels with well‐controlled mechanical and rheological properties
PublicationAlthough significant progress has been made in the design and application of injectable hydrogels for biomedical applications, concurrent control of rheological and mechanical properties of injectable hydrogels has remained as an open challenge to the researchers. In this work, we introduce and put into practice a photo‐curable poloxamer (also known as Pluronic)/graphene oxide (Plu/GO) injectable hydrogel with well‐controlled rheological...
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Analysis of IMS/NGN call processing performance using phase-type distributions
PublicationThis work is a continuation of our research on the traffic model dedicated for design and analysis of the Next Generation Network (NGN), which is standardized for distribution of current and future multimedia services based on the IP Multimedia Subsystem (IMS). Our analytical and simulation models allow evaluation of mean Call Set-up Delay E(CSD) as well as mean Call Disengagement Delay E(CDD) in a single domain of IMS/NGN. Ensuring...
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Psychometric properties of the polish version of the job-related affective well-being scale
PublicationObjectives: The aim of this study was to verify psychometric properties of the Polish version of the Job-related Affective Well-being Scale (JAWS). Specifically, theoretical 4-factor structure (based on the dimensions of pleasure and arousal) and reliability of the original – 20-item JAWS (van Katwyk et al., 2000) and the shortened – 12-item (Schaufeli and Van Rhenen, 2006) versions were tested. Material and Methods: Two independent...
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A vertical subway, namely, an internal transport system in a 1200 m tall building,
PublicationThis article deals with the topic of designing an efficient internal transport system in a 1200 m tall multifunctional building called the “World’s Tower” due to its symbolism and specific architectural form. The building comprises four towers whose bases are 75 m/75 m long each and whose height is 1200 m. Two of the towers are located along the north-south axis while the two others along the east-west one. The towers are joined...
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Traffic model for evaluation of call processing performance parameters in IMS-based NGN
PublicationIn the modern world requirements for accurate and fast information distribution are becoming more and more important, which creates a strong necessity for appropriate telecommunication network architecture. Proposition of such an architecture is the Next Generation Network (NGN) concept, which in order to guarantee Quality of Service (QoS), should be correctly designed and dimensioned. For this reason proper traffic models must...
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Cost Analysis of Prefabricated Elements of the Ordinary and Lightweight Concrete Walls in Residential Construction
PublicationGlobal economic growth causes an increase in natural resources exploitation, particularly in construction branch. The growing use of electricity contributes to climate change. Therefore, it is necessary to search the solutions, which will allow for reducing natural resources exploitation. One of the many opportunities to do that is the application of the recycled materials. The authors of the given article have analyzed three variants...
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Optimized Computational Intelligence Model for Estimating the Flexural Behavior of Composite Shear Walls
PublicationThis article presents a novel approach to estimate the flexural capacity of reinforced concrete-filled composite plate shear walls using an optimized computational intelligence model. The proposed model was developed and validated based on 47 laboratory data points and the Transit Search (TS) optimization algorithm. Using 80% of the experimental dataset, the optimized model was selected by determining the unknown coefficients of...
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Ball milling treatment of Mn3O4 regulates electron transfer pathway for peroxymonosulfate activation
PublicationHeterogeneous metal catalysts have attracted considerable interest in advanced oxidation processes (AOPs) for wastewater treatment by activating peroxymonosulfate (PMS). However, it remains challenging to the rational design of efficient reaction pathway for high-performance contaminants removal by regulating the inherent structure of metal oxides. Herein, a high-energy ball milling method was employed to modulate the electronic...
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Vibration surveillance of high speed ball end milling by the spindle speed control
PublicationPrzedstawiono zmodyfikowaną metodę nadzorowania drgań smukłych wirujących narzedzi skrawających za pomocą sterowania optymalno-liniowego prędkością obrotową wrzeciona. Podano opis dynamiki skrawania, niestacjonarnego modelu obliczeniowego oraz zmodyfikowanej metody nadzorowania drgań. Modyfikacja polega na tym, że do symulacji procesu nadzorowania wykorzystano model modalny freza, zaś parametry tego modelu wyznaczono albo numerycznie,...
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Modelling and simulation of vibration surveillance during ball end milling of flexible details
PublicationPraca dotyczy nadzorowania drgań w procesie frezowania szybkościowego przedmiotów podatnych za pomocą doboru optymalnej prędkości obrotowej wrzeciona. W niestacjonarnym układzie drgającym modelowanym dyskretnie wyodrębniono podukład modalny, podukład strukturalny oraz podukład łączący. Dynamikę procesu skrawania opisano we współrzędnych hybrydowych, przez co uzyskano znacznie mniejszy rząd niż w przypadku modelu strukturalnego....
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All Azimuth-A Journal of Foreign Policy and Peace
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Fluconazole resistant Candida auris clinical isolates have increased levels of cell wall chitin and increased susceptibility to a glucosamine-6-phosphate synthase inhibitor
PublicationIn 2009 Candida auris was first isolated as fungal pathogen of human disease from ear canal of a patient in Japan. In less than a decade, this pathogen has rapidly spread around the world and has now become a major health challenge that is of particular concern because many strains are resistant to multiple class of antifungal drugs. The lack of available antifungals and rapid increase of this fungal pathogen provides an incentive...
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Comparative tests of the wall thickness effect of a glass-reinforced thermosetting plastic coating with a non-circular cross section in a soil-coating object for economic aspect
PublicationCulvert structures made of plastics are employed extensively in the construction of new facilities as well as the renovation of existing ones. Due to the high costs of materials required for the manufacturing of these goods, the objective of this research is focused to lessen the thickness of the walls, which may, on the other hand, result in a reduction in the stiffness of the system. In the course of the testing, the structure...
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All-gather Algorithms Resilient to Imbalanced Process Arrival Patterns
PublicationTwo novel algorithms for the all-gather operation resilient to imbalanced process arrival patterns (PATs) are presented. The first one, Background Disseminated Ring (BDR), is based on the regular parallel ring algorithm often supplied in MPI implementations and exploits an auxiliary background thread for early data exchange from faster processes to accelerate the performed all-gather operation. The other algorithm, Background Sorted...
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An algorithm for listing all minimal double dominating sets of a tree
PublicationWe provide an algorithm for listing all minimal double dominating sets of a tree of order $n$ in time $\mathcal{O}(1.3248^n)$. This implies that every tree has at most $1.3248^n$ minimal double dominating sets. We also show that this bound is tight.
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All-natural bio-plastics using starch-betaglucan composites
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Building Smart Healthy Inclusive Environments for All Ages with Citizens
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Selective Protection for All-Optical Physical Impairment Constrained Routing
PublicationW 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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An Algorithm for Listing All Minimal 2-Dominating Sets of a Tree
PublicationWe provide an algorithm for listing all minimal 2-dominating sets of a tree of order n in time O(1.3248n) . This implies that every tree has at most 1.3248 n minimal 2-dominating sets. We also show that this bound is tigh.
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Influence of algorithmic management practices on workplace well-being – evidence from European organisations
PublicationPurpose Existing literature on algorithmic management practices –defined as autonomous data-driven decision making in people's management by adoption of self-learning algorithms and artificial intelligence – suggests complex relationships with employees' well-being in the workplace. While the use of algorithms can have positive impacts on people-related decisions, they may also adversely influence job autonomy, perceived justice...
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EVALUATION OF SURFACE ROUGHNESS PARAMETERS OF TURNED GEAR WHEELS HOLES MACHINED BY BALL BURNISHING
PublicationW artykule zaprezentowano wyniki z badań eksperymentalnych dotyczących przygotowania powierzchni do obróbki wykończeniowej nagniataniem. Badania dotyczyły obróbki materiałów w stanie utwardzonym po hartowaniu. analizowano wpływ parametrów toczenia na twardo na uzyskiwane wartości parametrów chropowatości powierzchni jako wejściowych przed procesem nagniatania.
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Probabilistic assessment of SMRFs with infill masonry walls incorporating nonlinear soil-structure interaction
PublicationInfill Masonry Walls (IMWs) are used in the perimeter of a building to separate the inner and outer space. IMWs may affect the lateral behavior of buildings, while they are different from those partition walls that separate two inner spaces. This study focused on the seismic vulnerability assessment of Steel Moment-Resisting Frames (SMRFs) assuming different placement of IMWs incorporating nonlinear Soil-Structure Interaction (SSI)....
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The Effect of Openings’ Size and Location on Selected Dynamical Properties of Typical Wood Frame Walls
PublicationThe wooden frame constructions are now popular in many developed countries of the world. Many of these locations where such buildings are constructed are exposed to seismic and other shocks which are generated by human activities. This paper discusses the effect of the size and location of openings in the wooden frame walls under dynamic loadings. Natural frequencies of such frames with and without openings have been determined....
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Analysis of Emission Factors in RDE Tests As Well as in NEDC and WLTC Chassis Dynamometer Tests
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On a method of modelling and simulation of vibration surveillance during ball end milling of flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Przeprowadzono analizę dynamiki procesu frezowania. Następnie przedstawiono analizę niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego...
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Modelling and investigation of vibration surveillance during ball end milling of curved flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania zakrzywionych przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Dokonano analizy dynamiki niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego kąta przesunięcia fazowego. Zasadność...
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On a method of modelling and simulation of vibration surveillance during ball end milling of flexible details
PublicationPraca dotyczy nadzorowania drgań podczas frezowania przedmiotów podatnych smukłym frezem kulistym, z uwzględnieniem zgodności parametrów modelu modalnego. Przeprowadzono analizę dynamiki procesu frezowania. Następnie przedstawiono analizę niestacjonarnego układu drgającego, w którym wyodrębniono podukłady: modalny, strukturalny i łączący. Do minimalizacji poziomu drgań zastosowano dopasowanie prędkości obrotowej wrzeciona do optymalnego...
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Well-Designed Porous Graphene Flakes for Lithium-Ion Batteries with Outstanding Rate Performance
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The simultaneous detection of food dyes from different samples in a 96-well plate by spectrophotometry
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Tool Life and Process Dynamics in High Speed Ball End Milling of Hardened Steel
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Usługi Third Party Call Control zrealizowane z wykorzystaniem oprogramowania Open Source
PublicationKoncepcja sieci NGN zakłada otwartość na usługi udostępniane użytkownikom (abonentom). Jej realizacja wymaga ulokowania tej funkcjonalności w zewnętrznych elementach w stosunku do sieci telekomunikacyjnej udostępniającej usługi przenoszenia. Jednym z rozwiązań jest serwer Third Party Call Control (3PCC) w którym można ulokować scenariusze sterowania przebiegiem połączenia. W artykule przedstawiono i omówiono projekt, wykonany w...
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Spray-Based Method for Protecting and Restoring Historic Adobe Walls Using Nanomontmorillonite Clay
PublicationRestoringandprotectinghistoricbuildingsworldwideareimportant becauseheritagebuildingsarerecordsofthecivilizationsofvariouscountries.Herein, nanotechnologywasusedtorestorehistoricadobewalls.AccordingtotheIranPatent andTrademarkOffice(IRPATENT)102665,nanomontmorilloniteclayhasbeen selectedasanaturalandcompatiblematerialwithadobe.Furthermore,ithasbeenused asnanospraytobeaminimallyinvasivemethodtofillcavitiesandcracksintheadobe surface.Variouspercentagesofnanomontmorilloniteclay(1−4%)intheethanolsolvent...
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Modelling of laminated glass PVB walls of buildings exposed to vehicle impact with different speeds
PublicationThis paper presents an analytical model, developed for laminated glass subjected to a low-velocity impact. It has the ability to capture glass cracks as well as large non-linear deformations. It is based mathematically on the firstorder deformation concept, which considers the effect of membrane and transverse shear as well as bending. This theory uses damage mechanics to capture the glass cracking. For this purpose, several experiments...
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Full-scale experiments on wheat flow in steel silo composed of corrugated walls and columns
PublicationArtykuł omawia wyniki doświadczalne w dużej skali odnośnie przepływu pszenicy w stalowym silosie wykonanym z blachy falistej i słupów. Pomierzono napory poziome i pionowe na ścianie oraz siły pionowe w słupach. Zbadano rodzaj przepływu w zależności od położenia wylotu. Wyniki naporów porównano z Eurokodem.
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Sensitivity performance of all pole canonical low pass GmC filters.
PublicationW pracy badano własności częstotliwościowe kanonicznych filtrów dolnoprzepustowych GmC bez zer transmisyjnych. Przedstawiono ogólną strukturę kanonicznego filtru dolnoprzepustowego i jej opis macierzowy. Wyprowadzono ogólne wzory określające funkcje wrażliwościowe filtru. Dokonano porównania struktur do 10-go rzędu włącznie dla aproksymacji Butterwortha, Czebyshewa i Bessela.
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All graphs with restrained domination number three less than their order
PublicationW pracy opisana jest rodzina wszystkich grafów, dla których liczbadominowania zewnętrznego jest o trzy mniejsza od ich rzędu.
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Bezpieczeństwo sieci szkieletowej All-IP w systemie komórkowym UMTS
PublicationW pracy przedstawiono podstawowe mechanizmy zabezpieczeń funkcjonujące w sieci szkieletowej systemu UMTS, ze szczególnym uwzględnieniem protokołu IPsec. Badania i analizy zostały przeprowadzone w głównej mierze w oparciu o dokumenty standaryzacyjne systemu UMTS oraz zalecenia RFC organizacji IETF. Niniejsza praca powstała głównie z myślą o operatorach telefonii komórkowej trzeciej generacji. Aspiracją autora, towarzyszącą powstaniu...
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Investigation of sour substances by a set of all-solid-state membrane electrodes
PublicationTestowano elektrody typu all solid state (ASS) w roztworach elektrolitów zawierających substancje o smaku kwaśnym. Elektrody typu ASS zawierają dwa typy membran. Badano wpływ grubości membrany oraz stosunku związek lipofilowy/ chlorek poliwinilu na odpowiedzi elektrod. Stwierdzono, że grubość elektro aktywnego polimeru, nie ma wpływu na czułość i stabilność elektrod w przeciwieństwie do grubości membrany składającej się ze związku...
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Improving all-reduce collective operations for imbalanced process arrival patterns
PublicationTwo new algorithms for the all-reduce operation optimized for imbalanced process arrival patterns (PAPs) are presented: (1) sorted linear tree, (2) pre-reduced ring as well as a new way of online PAP detection, including process arrival time estimations, and their distribution between cooperating processes was introduced. The idea, pseudo-code, implementation details, benchmark for performance evaluation and a real case example...