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Search results for: Lean Six Sigma
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Czym jest prawdopodobieństwo?
PublicationWszyscy posługujemy się pojęciem prawdopodobieństwa. Mówienie o miarach probabilistycznych na sigma-ciałach i o przestrzeniach probabilistycznych nie odpowiada jednak na pytanie, czym prawdopodobieństwo właściwie jest. Nie mówiąc nic miłego o aksjomatach, opowiem jak na pytanie "czym jest prawdopodobieństwo?" odpowiadali matematycy-filozofowie.
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Phosphorylation‐mediated regulation of heat shock response in Escherichia coli
PublicationEscherichia coli has two heat shock regulons under the transcriptional control of Esigma(32) and Esigma(E) RNA polymerases. These polymerases control the expression of genes, the products of which are needed for correct folding of proteins in the cytoplasm and the extracytoplasm respectively. In this study, we report that mutations in a tyrosine phosphatase-encoding gene led to decreased activity of these heat shock regulons. The...
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On-Board Detection, Classification and Evaluation of Nonlinearities
PublicationArtykuł prezentuje tester wbudowany BIT przeznaczony do wydobywania informacji diagnostycznej z sygnału generowanego przy zastosowaniu oscylacyjnej metody testowania. Układ bazujący na technice modulacji Sigma-Delta i sztucznych sieciach neuronowych może wykrywać nieliniowość w sygnale testującym, określać rodzaj nieliniowości i szacować zawartość harmonicznych.
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Testery wbudowane (BIST) układów analogowych i mieszanych sygnałowo
PublicationOmówiono metody realizacji w technice analogowej i cyfrowej wbudowanych źródeł sygnałów testujących. Zaprezentowano sposoby analizy odpowiedzi: metodę histogramową, cyfrowego przetwarzania sygnałów oraz wykorzystanie koncepcji "macierzy z sumą kontrolną". Przedstawiono metodę testowania oscylacyjnego oraz DACBIST przeznaczony do testowania przetworników C/A, łączący testowanie oscylacyjne z techniką modulacji sigma-delta.
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Janusz Datta prof. dr hab. inż.
PeopleIn 1988, Janusz Datta finished his studies at the Gdańsk University of Technology (GUT), Faculty of Chemistry. Since then he has been employed at the Faculty of Chemistry in the Department of Polymer Technology. During the first six years of employement he was worked as a scientist. In this period, he travelled extensively to ZACHEM company located in Bydgoszcz to gain practical experience related to chemical processing. In 1994,...
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Magneto-mechanical properties evolution of Fe-C alloy during precipitation process.
PublicationZbadano pętlę histerezy magnetycznej oraz natężenia mechanicznego i polowego efektu Barkhausena w stopie Fe-C w funkcji czasu wygrzewania izotermicznego w temperaturze 473 K. Wyznaczono rozkłady poziomu naprężeń wewnętrznych oraz straty energii na procesy histerezowe. Wykazano, iż pole koercji Hc jest paraboliczną funkcją średniego poziomu naprężeń sigma-i.
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Influence of concentration on contact angle of water-Cu nanofluid on glass substrate
PublicationIn the paper the results of an experimental investigation of influence of nanoparticle concentration on contact angle of water-Cu nanofluid on glass substrate have been presented. Nanoparticles were tested at the concentration of 0.01%, 0.1%, and 1% by weight. In the present study copper was applied as nanoparticle while distilled, deionized water was used as a base fluid. The mean diameter of nanoparticle is estimated to be 50...
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Adam Przybyłek dr
PeopleAdam Przybyłek is an assistant professor at Gdansk University of Technology, Poland, where he has been working since October 2012. Between 2002 and 2011 he was a network consultant and instructor at Cisco Networking Academy. He obtained his Ph.D. degree in Software Engineering in 2011. He also holds a master's degree in Management Information Systems. His main research interests are in empirical software engineering with focus...
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Three series of measurement of spring force in relation to deflection of disc springs assembled in X configuration.
Open Research DataAttached data consist of three series of conducted measurement of disc springs package characteristic. The characteristic describes relation between spring force and deflection of the package. First column of each serie present axial deflection of the package, while second columns contain recorded spring force. Object of research contained six disc...
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Study of free convective boundary layer of isothermal lateral surface of axisymmetrical horizontal body
PublicationPrzedstawiono rozwiązanie równań Naviera-Stokesa i Fouriera-Kirchhoffa we współrzędnych tau i sigma. Pierwsza jest styczną a druga normalną do konwekcyjnych linii prądu, wzdłuż jakich porusza się ogrzany od powierzchni płyn. Wynik w postaci równania na grubość warstwy przyściennej zweryfikowano dla granicznych przypadków ciała obrotowego o poziomej osi symetrii (stożka poziomego i kołowej pionowej płyty).
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Fuel systems of high power stationary engine
PublicationThe use of alternative fuels and, in the future, synthetic fuels has forced changes in the design of fuel supply systems in internal combustion engines. When operating a stationary engine at constant load, the possibility of using lean fuel mixtures appears. The selection of a precise operating mixture ignition system requires changes in traditional fuel systems. The article presents the current designs of fuel supply systems and...
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The 5S methodology as a tool for improving organization of production
PublicationThe chapter presents the 5S method as a tool for continuous improving lean management processes, whose task is to create a highly efficient, clean, and ergonomic working environment. The method is presented as a collection of 5 simple rules, and at the same time it is a tool that allows you to control the workplace visually. The history of the 5S tool originates from Japanese philosophy, namely the five basic elements of the system: Seiri...
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METODY DOSKONALENIA SYSTEMU ZARZĄDZANIA ŚRODOWISKOWGO ISO14001 W PRZEDSIĘBIORSTWACH PRODUKCYJNYCH
PublicationOpracowanie ma na celu przedstawienie problematyki doskonalenia zarządzania środowiskowego w przedsiębiorstwach produkcyjnych. W opracowaniu przedstawiono główne wymagania w obszarze doskonalenia systemu zarządzania środowiskowego zgodnego z wymaganiami ISO14001. Zaprezentowano wybrane metody oraz mechanizmy doskonalenia systemów zarządzania środowiskowego ISO14001 stosowane w praktyce. Dokonano prezentacji autorskiej metody doskonalenia...
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The FEM analysis of pressure installation elements after simulated accidental overheating
PublicationThe paper presents innovative analysis focused on the safety aspects of existing pressure installation operation after overheating accidents. Results presented here can be applied in decision-making process concerning further operation of existing pressure installation after cooling system failure. In this paper the results of FEM analysis performed for a straight pipe and 90 degrees elbow, made of super duplex stainless steel,...
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Krzysztof Leja dr hab. inż.
PeopleKrzysztof Leja graduated from the Faculty of Applied Physics at Gdansk University of Technology, PhD in economics, DSc in management. Associate professor and v-ce dean for research at the Faculty of Management and Economics, Gdansk University of Technology. His fields of interest include research of HEIs and policy studies. He is an expert of Polish Rectors Foundation and Ministry of Science and Higher Education. He led and participated...
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Determinanty regionalnego zróznicowania płac
PublicationArtykuł omawia tendencje w dyspersji kosztów pracy na terenie UE w latach 1996-2006. Analiza składa się z badań konwergencji typu sigma i beta. W celu sprawdzenia istotności wyników w epirycznej części posłużono się następującymi estymatorami: MNK typu pooled, FE, 2SLS oraz Uogólnionej Metody Momentów. Potwierdzone zostało powiolne tempo procesu konwergencji, 4,3% roczniem, a czas potrzebny do redukcji zróżnicowania kosztów pracy...
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Social Convergence in Nordic NUTS-3 Regions
PublicationGeographical proximity, common historical roots and collaboration within the Nordic Council make the Nordic countries, often wrongly treated as monoliths. However, in reality, Nordic regions differ in terms of broadly defined social and economic development. Issues concerning the standard of living are one of the priorities of the Helsinki Treaty signed by Nordic countries. The main goal of this paper is to analyze the existence...
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MaliciousIDE – software development environment that evokes emotions
PublicationEmotions affect every aspect of human live, including work. Numerous studies in software engineering have shown that negative emotions can lower the productivity of programmers. Unlike traditional approaches to managing software development, modern methods, such as Agile and Lean, take into account human aspects of programming. To thoroughly investigate the impact of negative emotions on the work of programmers, a malicious integrated...
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Mieczysław Siemiątkowski dr inż.
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Solvothermal synthesis and structural characterization of three polyoxotitanium-organic acid clusters
PublicationThree new titanium oxo-clusters Ti4O2(OiPr)10(OOCPhMe)2 (I), Ti6O4(OEt)8(OOCPhMe)8 (II) and Ti6O6(OEt)6(OOCCHPh2)6 (III) were obtained by easy one-step solvothermal reactions of titanium(IV) isopropoxide, alcohols and carboxylic acids. The three compounds were characterized by single-crystal and powder X-ray diffraction, TGA/DSC, optical and electron microscopy, and FTIR and NMR spectroscopy. X-ray powder diffraction and spectroscopy...
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The Implementation of the Taxonomic Spatial Measure of Development in the Analysis of Convergence in the Standard of Living
PublicationThe main goal of this paper is to analyse the existence of the social convergence in the European Union between 19952012. The social convergence refers to a reduction in the dispersion of the standard of living across countries. A taxonomic spatial measure of development was used as the standard of living approximation. The use of the new approach proposed by E. Antczak allowed for an explanation of the disparities in the analysed...
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The influence of stainless steels microstructure evolution on the mechanical properties of pressure installation elements
PublicationIn this paper results of FEM analysis performed for pipe and 90o elbow, made of super duplex stainless steel, after precipitation of sigma phase (),were presented. Heat treatment conditions simulate accidental overheating that can occur in nuclear installations after cooling circulation fails. For initial and modified microstructure tensile test was performed and numerical description of work hardening curves was done. Verification...
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The influence of stainless steels microstructure evolution on the mechanical properties of pressure installation elements
PublicationIn this paper results of FEM analysis performed for pipe and 90o elbow, made of super duplex stainless steel, after precipitation of sigma phase (s), were presented. Heat treatment conditions simulate accidental overheating that can occur in nuclear installations after cooling circulation fails. For initial and modified microstructure tensile test was performed and numerical description of work hardening curves was done. Verification...
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Monika Arczyńska dr inż. arch.
PeopleArchitect and researcher with over 10 years of international experience in cultural projects. She has been working on the designs of Grand Egyptian Museum in Cairo, Palestinian Museum in East Bank, Giant’s Causeway Visitor Centre and National Centre for Contemporary Art in Moscow (with Heneghan Peng Architects). As a founder of A2P2 architecture & planning she runs architecture department of the company. In 2018 together with...
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Permanent dipole moment functions of the KRb molecule
Open Research DataElectronic permanent dipole moment functions (PDMF) have been calculated for the singlet (s) and triplet (t) Sigma+, Sigma-, Pi, and Delta electronic states of the KRb molecule. PDMFs are needed in understanding processes like photodissociation, photoassociation, cooling, and trapping of molecules. All results of the permanent dipole moments have been...
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Social convergence in Nordic countries at regional level
PublicationResearch background: Geographical proximity, common historical roots and collaboration within the Nordic Council cause the Nordic countries to be often wrongly treated as monoliths. However, in reality, Nordic regions differ in terms of broadly defined social and economic development. Issues concerning the standard of living are one of the priorities of the Helsinki Treaty signed by Nordic countries. Purpose of the article: The...
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Potential energy curves of LiCs dimer
Open Research DataThis data presents potential energy curves of LiCs dimer in Hund's case (a). Calculated using Born-Oppenheimer approximation with scalar relativistic effects are included via large effective core potentials. Custom basis sets, core polarization potentials and MRCI method are used to accurately describe electron correlation. Dataset consists of 22 potential...
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X-ray diffraction (XRD) and particle size distribution (PSD) data of iron oxide (Fe3O4) - magnetite particles
Open Research DataDataset presenting X-ray diffractogram and particle size distribution of nanomagnetite (Fe3O4) iron oxide particles purchased from Sigma Aldrich (637106).X-ray diffraction study was performed with a PRO X-ray diffractometer (X’Pert PRO Philips diffractometer, Co. Ka radiation, Almelo, Holland), while PSD was determined using laser diffraction technique...
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Potential energy curves of NaRb dimer
Open Research DataThis 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...
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Pomiędzy kontrolą i zaufaniem – jakich liderów potrzebują wirtualne zespoły projektowe
PublicationArtykuł dotyczy zarządzania zespołem wirtualnym, które jest szczególnym wyzwaniem ze względu na rozproszenie geograficzne członków zespołu oraz porozumiewanie się za pośrednictwem technologii informacyjnej. Skoncentrowano się na utrzymywaniu odpowiedniej proporcji pomiędzy zaufaniem i kontrolą zespołu i opracowano listę rekomendacji dla liderów zespołów wirtualnych, dotyczących budowania zaufania i koordynacji pracy. Do realizacji...
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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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One Europe, one product, two prices - the price disparity in the EU
PublicationThe price dispersion in the European Union in the last fifteen years (1990-2005) is analysed. The analysis of price convergence is examined on aggregate and disaggregate levels. The macro approach is based on Comparative Price Level index calculated as the ratio between PPPs and exchange rate. The disaggregate analysis utilizesactual prices of 148 individual products sold in the 15 capital cities of the EU. The calculations comprise...
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Shaping the SPL Spectra of the Acoustic Noise Emitted by Inverter-Fed Indu- ction Motors
PublicationW artykule przedstawiono nowe podejście do zmniejszania wpływu właściwości mechanicznych maszyny na emitowany przez nią hałas akustyczny. Dokonano identyfikacji mechanicznych rezonansów maszyny wykorzystując modulację RPWM z losowym wyborem częstotliwości nośnej oraz modulację sigma delta, dla której otrzymano relatywnie płaskie widmo prądu. Skonstruowano na tej podstawie funkcję gęstości prawdopodobieństwa wyboru częstotliwości...
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Diagnostic tolerances' evaluation method of the start-up exhaust temperature of a naval gas turbine
PublicationThe conducted investigations aimed to elaborate the method of marking diagnostic tolerances of the exhaust temperature of a gas turbine observed during engine's start-up process. The diagnostic tolerances were determined by means of statistical inference by creating the hypothesis about a normal distribution of the start-up exhaust temperature's dispersion in the initial operation moment, which was subsequently verified applying...
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Assessment of Adjustment of GNSS Railway Measurements with Parameter-Binding Conditions in a Stationary Scenario
PublicationThe study aims to assess the applicability of the ordinary least squares method, robust estimation, and conditions-binded adjustment in processing the six synchronous coordinate pairs of global navigation satellite system (GNSS) receivers. The research is part of the research project InnoSatTrack, focused on the enhancement of the determination of geometrical parameters of railway tracks using GNSS, inertial, and other sensors....
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Tomasz Wąsowicz dr hab.
PeopleTomasz Wąsowicz's research was first related to high-resolution atomic spectroscopy and focused on measurements and analysis of the transition probabilities of the forbidden lines, the hyperfine and isotopic structure of spectral lines of heavy elements, Stark effect in the helium atom. Tomasz Wąsowicz currently studies physicochemical processes occurring during interactions of various forms of radiation with atoms and molecules...
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Improving the production planning and control process
PublicationFocusing the activities of a production business on the strategy based on quality entails orientation on meeting the expectations of the customers with respect to the product itself, and the terms of its delivery. The article notes the role of the production planning and control process in improving the quality of the business offer. It identifies the objectives set for the process from the perspective of meeting the expectations...
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Built-in Test Scheme for detection, classification and evaluation of nonlinearities
PublicationW artykule przedstawiono koncepcję testera wbudowanego (BIST) przeznaczonego do detekcji nieliniowości, klasyfikacji rodzaju nieliniowości i oceny zniekształceń nieliniowych sygnału testowanego, bez użycia drogiego systemu automatycznego testowania. Tester bazuje na modulatorze sigma-delta umieszczonym na pakiecie testowanym i sztucznej sieci neuronowej zaimplementowanej w komputerze osobistym. Koncepcję testera zweryfikowano poprzerz...
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Testing oscillators by waveform comparison with the ideal sine-wave
PublicationW kontekście oscylacyjnej metody testowania zaproponowano prostą i mało kosztowną metodę testowania oscylatorów poprzez porównanie fragmentu generowanego przebiegu z wzorcowym przebiegiem sinusoidalnym. Metoda bazuje na odejmowaniu dwu sygnałów zmodulowanych techniką sigma-delta za pomocą subtraktora wykorzystujacego nadpróbkowanie i kształtowanie szumów. Sygnaturą uszkodzeń jest wartość średnia 1 bitowego strumienia danych, wyznaczana...
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Doskonalenie strumienia wartości
PublicationKsiążka ta ma na celu praktyczne ujęcie problemu optymalizacji przedsiębiorstwa opartej na koncepcji Lean (z ang. Lean – szczupły) i jej narzędziu Mapowania Strumienia Wartości. Prezentowane podejście do Mapowania Strumienia Wartości jest spójne z innymi pozycjami literaturowymi w tym zakresie. Jednak moje dziesięcioletnie doświadczenie zdobywane w toku kilkudziesięciu projektów wskazało mi dodatkowe kierunki analiz, które warto...
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Multiple transcriptional factors regulate transcription of the rpoE gene in Escherichia coli under different growth conditions and when the lipopolysaccharide biosynthesis is defective.
PublicationThe RpoE sigma factor is essential for the viability of Escherichia coli. RpoE regulates extracytoplasmic functions including lipopolysaccharide (LPS) translocation and some of its non-stoichiometric modifications. Transcription of the rpoE gene is positively autoregulated by EσE and by unknown mechanisms that control the expression of its distally located promoter(s). Mapping of 5′ ends of rpoE mRNA identified five new transcriptional...
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The situation of young mothers in the Polish labour market
PublicationThe purpose of the article is to present the situation of young women combining professional and paternal responsibilities in the Polish labour market. The papaer presents the results of interviews conducted with six young mothers.
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A Nonlinear Model of a Mesh Shell
PublicationFor a certain class of elastic lattice shells experiencing finite deformations, a continual model using the equations of the so-called six-parameter shell theory has been proposed. Within this model, the kinematics of the shell is described using six kinematically independent scalar degrees of freedom — the field of displacements and turns, as in the case of the Cosserat continuum, which gives reason to call the model under consideration...
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Wykorzystanie nowoczesnych koncepcji zarządzania produkcją i jakością w przedsiębiorstwach branży automotive – przebieg i status badań Słowa kluczowe:
PublicationW referacie opisano wyniki badań przeprowadzonych w Firmie A, przedsiębiorstwie branży automotive. Celem było zebranie informacji odnośnie stosowanych systemów oraz narzędzi zarządzania produkcją i jakością, determinantów ich wyboru oraz korzyści i wad związanych z ich wykorzystaniem. Przeprowadzono badania ankietowe wśród kadry za-rządzającej oraz pracowników produkcyjnych, wywiady pogłębione oraz obserwacje. Po wnikliwej analizie,...
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Price convergence in the European Union and in the new member states
PublicationThis paper examines price dispersion in the European Union (EU15) and in three New Member States (Poland, Hungary and the Czech Republic) between 1995 and 2006. The analysis utilizes both disaggregate and aggregate price data, including the prices of 157 products and two indices constructed using two different weighting procedures. For each category of goods the price dispersion is lower in EU15 than EU15 plus 3 NMS. Sigma convergence...
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Structural investigations of the Al2O3 ultra thin films
Open Research DataUltra-thin layers of Al2O3 were deposited by atomic layer deposition (ALD) (Beneq TFS 200 ALD system). This method provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water. The deposition of the atomic layer was carried out at 200 °C. Samples with a thickness of 2...
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Instrumental measurement of odour nuisance in city agglomeration using electronic nose
PublicationThe paper describes an operation principle of odour nuisance monitoring network in a city agglomeration. Moreover, it presents the results of investigation on ambient air quality with respect to odour obtained during six-month period. The investigation was carried out using a network comprised of six prototypes of electronic nose and Nasal Ranger field olfactometers employed as a reference method. The monitoring network consisted...
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Loop-mediated isothermal amplification (LAMP) as a diagnostic tool in detection of infectious diseases
PublicationLoop-mediated isothermal amplification (LAMP) is a gene amplification method which amplifies DNA with high specificity and efficiency under isothermal conditions. Because of its rapidity and simplicity, it is a valuable diagnostic tool in the early detection and identification of infectious diseases. LAMP method is based on the use of a set of four to six specially designed primers spanning six to eight distinct sequences on the...
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Gry bardzo serio. CXO Nowy Magazyn Kadry Zarządzającej.**2002 nr 12 s.26-28.
PublicationGry symulacyjne Lean są typem symulacji społecznej, której zasady są opartenie na współzawodnictwie, ale na wypracowaniu zespołowej taktyki działania.Celem symulacji jest wzmacnianie u uczących się umiejętności współdziałania,negocjowania, osiągania kompromisu, wypracowania wspólnej strategii Leanprzez wszystkich uczestników zespołu reprezentujących różne interesy. Arty-kuł przedstawia rodzaje gier symulacyjnych, sposoby...
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Adopting collaborative games into Open Kanban
PublicationThe crucial element of any agile project is people. Not surprisingly, principles and values such as "Respect for people", "Communication and Collaboration", "Lead using a team approach", and "Learn and improve continuously" are an integral part of Open Kanban. However, Open Kanban has not provided any tools or techniques to aid the human side of software development. Moreover, as a Lean initiative, it is not as comprehensively...