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Search results for: hic
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Interactions of amphotericin B derivative of low toxicity with biological membrane components - the Langmuir monolayer approach
PublicationMetodą monowarstw Langmuira zbadano naturę oddziaływań nowej pochodnej antybiotyku przeciwgrzybowego amfoterycyny B o niskiej toksyczności, tj. estru metylowego N-metylo-N-D-fruktopiranozyloamfoterycyny B (MF-AME)z komponentami błon biologicznych: ergosterolem, występującym w komórkach grzybowych i cholesterolem występującym w komórkach zwierzęcych oraz z modelowym fosfolipidem DPPC i na tej podstawie stwierdzono, że zróżnicowanie...
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N-(1-Piperidinepropionyl)amphotericin B methyl ester (PAME) - a new derivative of the antifungal antibiotic amphotericin B: Searching for the mechanism of its reduced
PublicationZ zastosowaniem techniki monowarstw Langmuira zbadano naturę oddziaływań pochodnej antybiotyku przeciwgrzybowego amfoterycyny B o obniżonej toksyczności tj. estru metylowego N-(1-piperydynopropionylo)amfoterycyny B (PAME) z komponentami błon biologicznych takich jak: ergosterol, cholesterol i modelowy fosfolipid DPPC i stwierdzono, że zróżnicowanie tych oddziaływań jest podstawą obniżonej toksyczności związku.
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Investigations of porosity changes during granular silo flow using Electrical Capacitance Tomography (ECT) and Particle Image Velocimetry (PIV)
PublicationArtykuł omawia pomiary zmian porowatości podczas przepływu silosowego materiału granulowanego. Zastosowano 2 techniki: tomografie i optoelektroniczną DIC. Pomiary wykonano dla różnych początkowych zagęszczeń oraz szorstkości ścian.
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International Symposium on Modelling and Optimization in Mobile, Ad Hoc, and Wireless Networks
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Bohdan Pakhaliuk PhD student
PeopleBohdan Pakhaliuk received the B.Sc. and M.Sc. degrees in industrial electonics from Chernihiv National University of Technology, Chernihiv, Ukraine, in 2016 and 2018 respectively. He is PhD student of double postgraduate study, in Gdansk University of Technology and Chernihiv National University of Technology. He is junior researcher of the Department of Biomedical Radioelectronics Apparatus and Systems, Chernihiv National University...
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Olgun Aydin dr
PeopleOlgun Aydin finished his PhD by publishing a thesis about Deep Neural Networks. He works as a Principal Machine Learning Engineer in Nike, and works as Assistant Professor in Gdansk University of Technology in Poland. Dr. Aydin is part of editorial board of "Journal of Artificial Intelligence and Data Science" Dr. Aydin served as Vice-Chairman of Why R? Foundation and is member of Polish Artificial Intelligence Society. Olgun is...
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Chladni and circular saw disc vibrations visualisation
PublicationIn this paper are described some methods for saw disc vibration monitoring in march of time (chronology). Ernst Chaldni, the father of sound visualisation and his patternsis are mentioned. In the last partof article are introduced results received with authors measuring systems.
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WZiE - Zarządzanie lic. ang. - e-test 2019/20
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WZiE - Zarządzanie lic. ang. - e-test 2018/19
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WZiE - Zarządzanie lic. (j.ang.) - Mathematics 2020/2021 (M.Wata)
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Explainable machine learning for diffraction patterns
PublicationSerial crystallography experiments at X-ray free-electron laser facilities produce massive amounts of data but only a fraction of these data are useful for downstream analysis. Thus, it is essential to differentiate between acceptable and unacceptable data, generally known as ‘hit’ and ‘miss’, respectively. Image classification methods from artificial intelligence, or more specifically convolutional neural networks (CNNs), classify...
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Investigation of the Antifungal Activity and Mode of Action of Thymus vulgaris, Citrus limonum, Pelargonium graveolens, Cinnamomum cassia, Ocimum basilicum, and Eugenia caryophyllus Essential Oils
PublicationThe antimicrobial activity of plant oils and extracts has been recognized for many years. In this study the activity of Thymus vulgaris, Citrus limonum, Pelargonium graveolens, Cinnamomum cassia, Ocimumbasilicum, and Eugenia caryophyllus essential oils (EOs) distributed by Pollena Aroma (Nowy Dwór Mazowiecki, Poland) was investigated against a group of 183 clinical isolates of C. albicans and 76 isolates of C. glabrata. All of...
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In Search of Naval Beauty. Historical Study of Ship Architecture
PublicationDesigning ships is no mean achievement. In the old days, constructors focused on making their ships visually appealing, while paying scant regard to the living conditions of the crew. Such an approach reflected the state of the art in ship building at the time as well as the social order prevalent in those days. A breakthrough came no earlier than at the turn of the 19th / 20th centuries. The industrial revolution brought along...
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Evaluation of antimicrobial activities of powdered cuttlebone against Klebsiella oxytoca, Staphylococcus aureus, and Aspergillus flavus
PublicationBackground: The presence of medicines in the environment is considered as a serious threat to the human health. The entrance of these substances into the water sources causes soil pollution, which eventually leads to the environmental pollution and it creates some problems for the public health. Also, increasing antibiotic resistant bacteria has attracted the attention of researchers to the use of natural resources such as marine...
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The contribution of Hans von Wartenberg to the development of the Czochralski method
PublicationThe contribution of Hans von Wartenberg to the development of the Czochralski Method for pulling single crystals is often overlooked. He was its earliest adopter, having introduced the use of seed crystals, and his detailed description of the method was the basis for its subsequent dissemination.
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Combination of hydrodynamic cavitation and SR-AOPs for simultaneous degradation of BTEX in water
PublicationHydrodynamic cavitation (HC) is an emerging technology gaining interest in water treatment for use in elimination of a wide range of organic pollutants. The energy released during cavitation phenomenon has number of applications and, particularly, it can be utilized for activation of persulfate (PS) and peroxymonosulfate (PMS). In the present study, hybrid techniques: HC combined with persulfates – HC-PS and HC-PMS were tested...
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Zwierzę, które spać nie może. Bezsenność w antropologii filozoficznej Emila Ciorana
PublicationThis article examines the role of insomnia in Emil Cioran’s philosophy. Taken as a whole, his work appears to be exceptionally significant both from the point of view of anthropology and illness narrative studies. There has never been any doubt that his life and work are dominated by a sense of ennui, loneliness and estrangement. Yet these themes are merely symptoms of more fundamental problems he grappled with, i.e. the grotesque...
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Rigorous Modal Analysis of Structures Containing Inhomogeneous Dielectric Cylinders.
PublicationW pracy wykorzystano zmodyfikowaną procedurę iteracyjną i metodę dopasowania rodzajów w celu analizy struktur zawierających asymetrycznie umieszczone, niepełnej wysokości lub wielowarstwowe, niejednorodne, cylindryczne rezonatory dielektryczne. Analiza bazuje na nowatorskiej koncepcji zwanej hybrydową macierzą impedancyjną (HIM - hybryd impedancje matrix), która opisuje relacje pomiędzy całkowitym polem elektrycznym i magnetycznym...
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Efficiency Evaluation of High Performance Computing Systems Using Data Envelopment Analysis
PublicationThe paper presents an evaluation method of high performance computing (HPC) systems using multicriteria efficiency analysis. The Data Envelopment Analysis approach was applied and adapted to the specifics of HPC, which enabled us to compare relative efficiency of systems considering simultaneously multiple parameters. The analysis is based on the TOP500 list of world largest supercomputers and their parameters such as: the number...
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The usage of the openBIM idea in architectural design on the example of Blender and BlenderBIM add-on
PublicationThe aim of the article is the research about the method and advancement of the openBIM idea implementation, clearly defined by the buildingSMART organization. The conducted analysis are limited to the Blender program and the BlenderBIM add-on and has been embedded in the context of the work of an architect and other IT solutions. The article presents four aspects of the openBIM concept implementation. The first approach relates...
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Digitalization of High Speed Craft Design and Operation Challenges and Opportunities
PublicationIn recent years, global demands for safe and sustainable ships led to dramatic changes in the maritime industry. Digitalization is expected to play an important part in the future. This is supported by analysis of the autonomous ships market which shows that digitalization of large ship types such as tankers and container ships is well on track. Although to date designs of autonomous High-Speed Craft (HSC) have been developed,...
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Agnieszka Żelizkowicz lic
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Paulina Stróżańska lic.
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Nina Stolarczyk lic.
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Rui Wang-Kwiecińska lic.
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Małgorzata Piwowarska lic.
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Anna Koza lic.
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Solid phase synthesis of 4,5,8-trihydroxy-9,10-anthraquinone-1-yl-(tuftsin or retro-tuftsin) derivatives
PublicationPrzedstawiono syntezę na fazie stałej połączeń leuko-1,4,5,8-tetra-hydroksyantrachinonów z pochodnymi tuftsyny i retro-tuftsyny zawierającymi wiązanie izopeptydowe. Do syntezy wykorzystano standardową metodę Fmoc i DIC jako odczynnik aktywujący.
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Przemysław Banasik dr hab.
Peoplee-mail: Przemyslaw.Banasik@zie.pg.edu.pl, pba@zie.pg.gda.pl tel.: +48 58 347 28 75, pok. 510dr hab. Przemysław Banasik, prof. PG – autor ponad 140 publikacji z prawa, zarządzania i ekonomii. W pracy naukowej podejmuje badania nad organizacją wymiaru sprawiedliwości oraz przedsiębiorczością w jej ujęciu prawnym, ekonomicznym i zarządczym. Od 2017 r. Sędzia Sądu Apelacyjnego w Gdańsku. W latach 2013 – 2017 Prezes Sądu...
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Task Allocation and Scalability Evaluation for Real-Time Multimedia Processing in a Cluster Envirinment
PublicationAn allocation algorithm for stream processing tasks is proposed (Modified best Fit Descendent, MBFD). A comparison with another solution (BFD) is provided. Tests of the algorithms in an HPC environment are descrobed and the results are presented. A proper scalability metric is proposed and used for the evaluation of the allocation algorithm.
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Odporność kawitacyjna struktury austenitycznej otrzymywanej metodami obróbki laserowej
PublicationPrzedstawiono badania odporności kawitacyjnej struktur austenitycznych otrzymanych poprzez obróbkę laserową stali 1H18N9 i 45. Stal 1H18N9 stopowano Mn i TiC natomiast warstwę wierzchnią stali 45 stopowano Ni, Mn, Cr i Nb.
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Hat problem on odd cycles
PublicationThe topic is the hat problem in which each of n players is randomly fitted with a blue or red hat. Then everybody can try to guess simultaneously his own hat color by looking at the hat colors of the other players. The team wins if at least one player guesses his hat color correctly, and no one guesses his hat color wrong; otherwise the team loses. The aim is to maximize the probability of a win. In this version every player can...
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A construction for the hat problem on a directed graph
PublicationA team of n players plays the following game. After a strategy session, each player is randomly fitted with a blue or red hat. Then, without further communication, everybody can try to guess simultaneously his own hat color by looking at the hat colors of the other players. Visibility is defined by a directed graph; that is, vertices correspond to players, and a player can see each player to whom he is connected by an arc. The...
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On the hat problem on a graph
PublicationThe topic of this paper is the hat problem in which each of n players is uniformly and independently fitted with a blue or red hat. Then everybody can try to guess simultaneously his own hat color by looking at the hat colors of the other players. The team wins if at least one player guesses his hat color correctly, and no one guesses his hat color wrong; otherwise the team loses. The aim is to maximize the probability of winning....
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Optimization of hybrid parallel application execution in heterogeneous high performance computing systems considering execution time and power consumption
PublicationMany important computational problems require utilization of high performance computing (HPC) systems that consist of multi-level structures combining higher and higher numbers of devices with various characteristics. Utilizing full power of such systems requires programming parallel applications that are hybrid in two meanings: they can utilize parallelism on multiple levels at the same time and combine together programming interfaces...
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Human Computer Interface for Tracking Eye Movements Improves Assessment and Diagnosis of Patients With Acquired Brain Injuries
PublicationOne of the first clinical signs differentiating the minimally conscious state from the vegetative state is the presence of smooth pursuit eye movements occurring in direct response to moving salient stimuli. Glasgow Coma Scale (GCS) is one of the most commonly used diagnostic tools for acute phase assessment of the level of consciousness, together with a neurological examination. These classic measures are limited to qualitative...
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A New Rehabilitation Device for Balance Impaired Individuals
PublicationIn the paper authors present a device designed to improve the rehabilitation process of people with balance impairment. The discussed device (JStep) utilizes a commercially available static standing frame (stander) modified in order to fit force sensing units under the feet and in the pillows around the hips of a patient. While executing rehabilitation tasks, the patient may compensate his balance deficiency by leaning on the pillows...
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Trzej prorocy: Sołżenicyn, Friedman, Dugin. Część pierwsza: Sołżenicyn
PublicationArtykuł przedstawia na tle biograficznym dzieło i myśl profetyczną Aleksandra Sołżenicyna. Podstawą jej analizy jest mowa z okazji przyznania autorowi Oddziału chorych na raka literackiej Nagrody Nobla oraz jego wykład na temat stanu cywilizacji Zachodu wygłoszony na Uniwersytecie Harvarda – zatytułowany Zmierzch odwagi. Proroctwa Sołżenicyna dotyczące Zachodu pokazane są w kontekście jego pracy Jak odbudować Rosję? W artykule...
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Rip currents in the non-tidal surf zone with sandbars: numerical analysis versus field measurements
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Morphologic and hydrodynamic conditions of Hel Peninsula's abrasion in the Kuźnica region (southern Baltic)
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A GIS-based WFD oriented typology of shallow micro-tidal soft bottom using wave exposure and turbidity mapping
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Fotografowanie architektury jako sztuka
PublicationFotografowanie architektury stało się współcześnie popisem wyszukiwania efektownych kadrów wyróżnianych przez autora zdjęć,a więc jest, przede wszystkim, jedynie zapisem sposobu widzenia fotografuącego i nie ma nic wspólnego z obrazowanie złożoności fotografowanych struktur architektonicznych.
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Experimental investigation on straight and u-bend double tube heat exchanger with active and passive enhancement methods
PublicationAuthors in this work want to demonstrate the possibility to increase the heat transfer efficiency by using simple wire coil inserts to create turbulent flow in the boundary layer as well as air blowing into the annulus of the pipe. In the study, Wilson plot approach was applied in order to estimate heat transfer coefficients for all heat exchanger (HX) configurations. The study focuses on experimental values of heat transfer coefficient...
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Hazards of a flooding event in the city of Gdansk and possible forms of preventing the phenomenon – case study
PublicationThe main objective is to examine the urban flood hazard in the city of Gdansk and to determine the possibilities of preventing this phenomenon. Hydrological and hydraulic modeling was used for the case study analysis of urban flood in Strzyża basin, applying the HEC-HMS and HEC-RAS systems. The result of modeling with the assumption of torrential rainfall with a duration of t = 1 h (from 35 to 58 mm) is the probability of pluvial...
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Electronic structure and magnetism of samarium and neodymium adatoms on free-standing graphene
PublicationThe electronic structure of selected rare-earth atoms adsorbed on a free-standing graphene was investigated using methods beyond the conventional density functional theory (DFT+U, DFT +HIA, and DFT+ED). The influence of the electron correlations and the spin-orbit coupling on the magnetic properties has been examined. The DFT+U method predicts both atoms to carry local magnetic moments (spin and orbital) contrary to a nonmagnetic...
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Silicon Oxycarbide-Graphite Electrodes for High-Power Energy Storage Devices
PublicationHerein we present a study on polymer-derived silicon oxycarbide (SiOC)/graphite composites for a potential application as an electrode in high power energy storage devices, such as Lithium-Ion Capacitor (LIC). The composites were processed using high power ultrasound-assisted sol-gel synthesis followed by pyrolysis. The intensive sonication enhances gelation and drying process, improving the homogenous distribution of the graphitic...
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Process arrival pattern aware algorithms for acceleration of scatter and gather operations
PublicationImbalanced process arrival patterns (PAPs) are ubiquitous in many parallel and distributed systems, especially in HPC ones. The collective operations, e.g. in MPI, are designed for equal process arrival times (PATs), and are not optimized for deviations in their appearance. We propose eight new PAP-aware algorithms for the scatter and gather operations. They are binomial or linear tree adaptations introducing additional process...
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Action Plan “Women”
PublicationEmployees of a company are not the first alternative coming into one’s mind when searching suitable successor for the business. Those belonging to the company’s management group are in many cases asked for their interest in being a successor, but the lower level an employee is in the hierarchy, the less probably he/she is inquired of his/her interest in becoming a successor. The contemporary entrepreneur may have had conflicts...
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Wpływ posuwu nagniatania na chropowatość powierzchni przedmiotów ze stali w stanie utwardzonym
PublicationPrzedstawiono wyniki badań eksperymentalnych procesu nagniatania stali twardej (62 HRC) narzędziem ceramicznym (kulką) z dociskiem hydrostatycznym. Analizowano wpływ posuwu nagniatania oraz parametrów poprzedzającej obróbki toczeniem na twardo na stan powierzchni opisanej wybranymi parametrami chropowatości.
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Technologia nagniatania stali hartowanych.
PublicationPrzedstawiono wyniki badań nagniatania wałków ze stali 45 o twardości 23-56 HRC. Do nagniatania zastosowano tokarkę CNC oraz specjalne narzędzie z kulką ceramiczną fi6 mm. Badano wpływ parametrów technologicznych obróbki nagniataniem na chropowatość powierzchni.