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    Wyświetlanie 1-12 z 12
    Tytuł:
    Process Variation and the Total Productive Maintenance. Case Study in the Manufacturing Plant
    Autorzy:
    Wojciechowski, Adrian
    Powiązania:
    https://bibliotekanauki.pl/articles/504148.pdf
    Data publikacji:
    2016
    Wydawca:
    Międzynarodowa Wyższa Szkoła Logistyki i Transportu
    Tematy:
    process variation
    Total Productive Maintenance autonomous maintenance
    Opis:
    One of the concepts decreasing the variability of the production processes is the Total Productive Maintenance. The aim of the article is to examine the impact of the TPM implementation on the reduction of process variation on the example of the production company. In the first part of the paper a short literature review in the context of the variability of processes and the characteristics of the TPM concept has been performed. Also a way of implementation of the concept in the production company has been presented. The second part contains the description of the applied research tools, it also presents research results and shows the final conclusions regarding the impact of TPM on the process variation in the studied company.
    Źródło:
    Logistics and Transport; 2016, 29, 1; 25-32
    1734-2015
    Pojawia się w:
    Logistics and Transport
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Use of a Carbon Dioxide Measurement System to Control the Process of Obtaining Breathing Air for Hyperbaric Oxygen Conditions
    Autorzy:
    Woźniak, Arkadiusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2098007.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
    Tematy:
    process capability
    diving breathing air quality
    diving gases
    measurement systems
    process variation
    carbon dioxide elimination
    Opis:
    Maintaining a stable carbon dioxide content in the process of producing breathing air is important both for the safety of divers performing underwater work and for avoiding financial losses resulting from poor product quality. This paper deals with the implementation of safety measurement systems for online control of the breathing air production process. On the basis of a qualified control system, the capability of the rationalised process was assessed, identifying both its current status and its potential for improvement in terms of eliminating defects caused by excessive carbon dioxide content. For process reasons, the effectiveness of online process monitoring was evaluated against the previously used periodic sample control by means of laboratory methods of instrumental analysis. The analysis was conducted at KTPP AMW1 for the compressed air supply system of the DGKN - 1202 complex.
    Źródło:
    Polish Hyperbaric Research; 2020, 4(74); 7--26
    1734-7009
    2084-0535
    Pojawia się w:
    Polish Hyperbaric Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the Oxygen Measurement System Capability in the Breathing Gas for Divers
    Analiza zdolności systemu pomiarowego zawartości tlenu w czynniku oddechowym dla nurków
    Autorzy:
    Woźniak, Arkadiusz
    Kryszak, Wacław
    Powiązania:
    https://bibliotekanauki.pl/articles/32695443.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Medycyny i Techniki Hiperbarycznej
    Tematy:
    measurement system analysis
    diving breathing air quality
    diving gases
    measurement system
    process variation
    analiza systemu pomiarowego
    jakość powietrza oddechowego
    nurkowe czynniki oddechowe
    systemy pomiarowe
    zmienność procesu
    Opis:
    Maintaining a stable oxygen content during the hyperbaric exposure process with breathing air is important for the safety of divers and for diving equipment. This paper presents an analysis of the ability of a measurement system selected for testing to control the oxygen content in the breathing atmosphere of a hyperbaric facility. The measurement system was qualified according to the requirements of the supervised process. The evaluation of the measuring system selected for tests, designed to control the oxygen content with the use of MSA procedures was carried out in KTPP AMW for the DKGN-120 complex.
    Utrzymanie stabilnej zawartości tlenu w procesie ekspozycji hiperbarycznej z wykorzystaniem powietrza oddechowego ma istotne znaczenie dla bezpieczeństwa nurków i techniki nurkowej. W artykule przedstawiono analizę zdolności wytypowanego do badań systemu pomiarowego do kontroli zawartości tlenu w atmosferze oddechowej obiektu hiperbarycznego. Kwalifikację systemu pomiarowego przeprowadzono pod kątem wymagań nadzorowanego procesu. Ocenę wytypowanego do badań systemu pomiarowego przeznaczonego do kontroli zawartości tlenu z wykorzystaniem procedur MSA przeprowadzono w KTPP AMW dla kompleksu DKGN-120.
    Źródło:
    Polish Hyperbaric Research; 2021, 1(74); 7-22
    1734-7009
    2084-0535
    Pojawia się w:
    Polish Hyperbaric Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Paracondylar process and epitransverse process on cone beam computed tomography: a pictorial review based on a serie of 9 patients
    Autorzy:
    Olszewski, Raphael
    Powiązania:
    https://bibliotekanauki.pl/articles/48520353.pdf
    Data publikacji:
    2023
    Wydawca:
    Presses Universitaires de Louvain
    Tematy:
    paracondylar process
    epitransverse process
    CBCT
    anatomical variation
    chronic headache
    Opis:
    Objective: Paracondylar (PCP) and epitransverse processes (ETP) represent rare types of articulations that can occur between the occipital bone and the transverse process of atlas vertebra. Material and methods: Five systematic search strings were conducted on PubMed database on 14.01.2022. The search was conducted by one observer to identify studies on PCP, and on ETP in living patients. Open and close access articles were selected as this topic is infrequently described in the main medical literature. Results: We provided with a pictorial review of 1) Paracondylar tubercle, 2) Unilateral PCP with cylindrical shape, 3) Unilateral PCP with pyramidal shape, 4) Unilateral PCP with lateral joint with transverse process, 5) Unilateral PCP with superior joint and partial fusion with transverse process, 6) Unilateral ETP with neo-condyle and joint with occipital condyle, 7) Unilateral ETP with joint with occipital bone, 8) Unilateral ETP with a bony bridge with lateral mass (ponticulus lateralis), and 9) Bilateral variation: paracondylar mass and ETP. Conclusions: Six figures were found in the selected literature and belong only to articles published in closed access. We provided with additional 41 open access freely available figures. We were first to present CBCT reference figures of: 1) Unilateral paracondylar tubercle, 2) Fusion of PCP with the transverse process of C1, 3) Joint between ETP and the lateral side of occipital condyle, and 4) Presence of bony bridge (ponticulus lateralis) between ETP and the lateral mass of C1. We were also first to describe a bilateral mixt variation with paracondylar mass on one side and ETP on the other side of C1. An open and accessible knowledge support (such as Nemesis journal) is needed to easily find clinical reference CBCT figures of craniocervicofacial bone variations.  
    Źródło:
    Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery; 2023, 28, 1; 1-33
    2593-3604
    Pojawia się w:
    Nemesis. Negative Effects in Medical Sciences Oral and Maxillofacial Surgery
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    ON AN UPPER GAIN BOUND FOR STRATEGIES WITH CONSTANT AND PROPORTIONAL NUMBER OF ASSETS TRADED
    Autorzy:
    Łochowski, Rafał
    Powiązania:
    https://bibliotekanauki.pl/articles/453150.pdf
    Data publikacji:
    2013
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
    Tematy:
    trading strategy
    transaction costs
    truncated variation
    AR(1) process
    Wiener process
    Ornstein-Uhlenbeck process
    random walk
    the Black-Scholes model
    Opis:
    We introduce general formulas for the upper bound of gain obtained from any finite-time trading strategy in discrete and continuous time models. We consider strategies with constant number of assets traded and strategies with proportional number of assets traded. Unfortunately, the estimates obtained in the discrete case become trivial in the continuous case, hence we introduce transaction costs. This leads to the interesting estimates in terms of the so called truncated variation of the price series. We apply the obtained estimates in specific cases of financial time series.
    Źródło:
    Metody Ilościowe w Badaniach Ekonomicznych; 2013, 14, 2; 29-38
    2082-792X
    Pojawia się w:
    Metody Ilościowe w Badaniach Ekonomicznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Obosnovanie vybora ugla naklona kanalov pnevmaticheskikh separatorov
    Rationale for selection angle channel pneumatic separators
    Autorzy:
    Bakum, N.
    Krekot, N.
    Ol'shanskijj, V.
    Vinokurov, N.
    Koziy, A.
    Votchenko, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/78207.pdf
    Data publikacji:
    2015
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    pneumatic separator
    mixture separation
    seed
    sorting
    process parameter
    variation coefficient
    differential equation
    Źródło:
    Motrol. Motoryzacja i Energetyka Rolnictwa; 2015, 17, 7
    1730-8658
    Pojawia się w:
    Motrol. Motoryzacja i Energetyka Rolnictwa
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temporal analysis of adaptive face recognition
    Autorzy:
    Akhtar, Z.
    Rattani, A.
    Foresti, G. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/91602.pdf
    Data publikacji:
    2014
    Wydawca:
    Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
    Tematy:
    aging process
    facial biometrics
    virtual template synthesis
    complex 3D modelling techniques
    temporal variation
    query data
    facial representation
    facial age progression process
    Opis:
    Aging has profound effects on facial biometrics as it causes change in shape and texture. However, aging remains an under-studied problem in comparison to facial variations due to pose, illumination and expression changes. A commonly adopted solution in the state-of-the-art is the virtual template synthesis for aging and de-aging transformations involving complex 3D modelling techniques. These methods are also prone to estimation errors in the synthesis. Another viable solution is to continuously adapt the template to the temporal variation (ageing) of the query data. Though efficacy of template update procedures has been proven for expression, lightning and pose variations, the use of template update for facial aging has not received much attention so far. Therefore, this paper first analyzes the performance of existing baseline facial representations, based on local features, under ageing effect then investigates the use of template update procedures for temporal variance due to the facial age progression process. Experimental results on FGNET and MORPH aging database using commercial VeriLook face recognition engine demonstrate that continuous template updating is an effective and simple way to adapt to variations due to the aging process.
    Źródło:
    Journal of Artificial Intelligence and Soft Computing Research; 2014, 4, 4; 43-255
    2083-2567
    2449-6499
    Pojawia się w:
    Journal of Artificial Intelligence and Soft Computing Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On the exponential Orlicz norms of stopped Brownian motion
    Autorzy:
    Peškir, Goran
    Powiązania:
    https://bibliotekanauki.pl/articles/1288072.pdf
    Data publikacji:
    1996
    Wydawca:
    Polska Akademia Nauk. Instytut Matematyczny PAN
    Tematy:
    Brownian motion (Wiener process)
    stopping time
    exponential Young function
    exponential Orlicz norm
    Doob's maximal inequality for martingales
    Burkholder-Gundy's inequality
    Davis' best constants
    Hermite polynomial
    continuous (local) martingale
    Ito's integral
    the quadratic variation process
    time change (of Brownian motion)
    Kahane-Khinchin's inequalities
    Opis:
    Necessary and sufficient conditions are found for the exponential Orlicz norm (generated by $ψ_p(x) = exp(|x|^p)-1$ with 0 < p ≤ 2) of $max_{0≤t≤τ}|B_t|$ or $|B_τ|$ to be finite, where $B = (B_t)_{t≥0}$ is a standard Brownian motion and τ is a stopping time for B. The conditions are in terms of the moments of the stopping time τ. For instance, we find that $∥max_{0≤t≤τ}|B_t|∥_{ψ_1} < ∞$ as soon as $E(τ^{k}) = O(C^{k}k^{k})$ for some constant C > 0 as k → ∞ (or equivalently $∥τ∥_{ψ_1} < ∞$). In particular, if τ ∼ Exp(λ) or $|N(0,σ^2)|$ then the last condition is satisfied, and we obtain $∥max_{0≤t≤τ}|B_t|∥_{ψ_1} ≤ K √{E(τ)}$ with some universal constant K > 0. Moreover, this inequality remains valid for any class of stopping times τ for B satisfying $E(τ^{k}) ≤ C(Eτ)^{k}k^{k}$ for all k ≥ 1 with some fixed constant C > 0. The method of proof relies upon Taylor expansion, Burkholder-Gundy's inequality, best constants in Doob's maximal inequality, Davis' best constants in the $L^p$-inequalities for stopped Brownian motion, and estimates of the smallest and largest positive zero of Hermite polynomials. The results extend to the case of any continuous local martingale (by applying the time change method of Dubins and Schwarz).
    Źródło:
    Studia Mathematica; 1995-1996, 117, 3; 253-273
    0039-3223
    Pojawia się w:
    Studia Mathematica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of diagnostic utility of instantaneous angular speed fluctuation of diesel engine crankshaft
    Autorzy:
    Dereszewski, M.
    Charchalis, A.
    Polanowski, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/244646.pdf
    Data publikacji:
    2011
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    two-stroke diesel engine diagnostics
    diagnostics of combustion process
    angular speed variation
    angular acceleration
    moving approximation
    Opis:
    Frequent crew rotation, a shorthand, and various levels of technical crew skills, are the facts with the ship-owners has to cope very often. Having the proper level of engine exploitation as a main objective is necessary to implement a constant engine monitoring system, in order to obtain quick and reliable diagnostic information. One cannot omit the financial aspect of monitoring system implementation, created by its price and costs of service. In this paper, the analysis of diagnostic utility of the signal deriving from a propulsion shaft fluctuation during its one revolution is presented. The angular speed of the shaft was measured using a laser sensor of torque meter ETNP-10. Diagnostic utility validation has been verified on a basis of combustion quality, in cylinders of two-stroke, turbocharged Marine Diesel Engine. Test was carried out on board of a container vessel during its sea passage. In order to evaluate the effectiveness of the method, the crew simulated engine’s malfunction by fuel injection cut-off in various cylinders (only one in the same time).The interference signals decomposition was carried out using the method of synchronous averaging and moving approximation with polynomial of 3rd exponent.
    Źródło:
    Journal of KONES; 2011, 18, 1; 123-128
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effects of grass cover and tillage on temperature of soil in sloping vineyard
    Autorzy:
    Ferrero, A.
    Sudiro, L.
    Nosalewicz, A.
    Lipiec, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/24929.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Agrofizyki PAN
    Tematy:
    traditional tillage
    tillage
    chemical process
    environmental regulator
    physical process
    temperature
    plant root
    soil
    vineyard
    nutrient availability
    sloping vineyard
    soil temperature
    grass cover
    temperature variation
    Źródło:
    International Agrophysics; 2004, 18, 2
    0236-8722
    Pojawia się w:
    International Agrophysics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Indication of urban expansion of Gujranwala city (Pakistan) by remote sensing and GIS
    Autorzy:
    Aziz, A.
    Anwar, M.M.
    Rani, M.
    Ahmad, S.
    Zaheer, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/2049753.pdf
    Data publikacji:
    2019
    Wydawca:
    Fundacja na Rzecz Młodych Naukowców
    Tematy:
    remote sensing
    industrial revolution
    Earth surface system
    human influence
    ecological process
    human activity
    temporal variation
    GIS
    urban sprawl
    ecology
    time
    Opis:
    Land-cover by land-use shows the influence of human on earth surface by different phenomena’s, ecological processes and human activities, its indication is a parameter of measurement how and with which extent the human influenced the natural surface with temporal variations. The change detection technique is used based upon the temporal observations from 2000 to 2015. Study area is one of the most populated city of Pakistan where industrial revolution is at its peak. The whole study area is categorized into four classes (i.e. Agricultural, Barren, Built-up and semi natural surfaces). The observational intervals were divided into three main classes i.e. 2000 to 2005, 2005 to 2010 and 2010 to 2015. Remarkable changes were occurred in built up area from 2000 to 2015 which is 38.6 % of total area, while the total change/decreased in barren land is -332 9(ha), similarly the Parks and grasses are also in decreasing extent and affect the local biodiversity and natural environment. The land cover is directly proportional to population expansion of urban city. For making the prediction of future urban expansion, previously occurred changes were aggregated to come up with a single value and then adding it to the recent land-use values. The mapping and analysis was undertaken through techniques of remote sensing and GIS, which proved to be very effective to measure the changes, and trend of changes with time, this mapping not only tells us the scale of change but, also tells us the patterns and the forces which causes these changes.
    Źródło:
    Environment, Earth and Ecology; 2019, 3, 1; 13-23
    2543-9774
    2451-4225
    Pojawia się w:
    Environment, Earth and Ecology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Polska sieć komunikacyjna i jej główne osie
    Polish communication network and its main axes
    Autorzy:
    Gajda, Stanisław
    Powiązania:
    https://bibliotekanauki.pl/articles/2171639.pdf
    Data publikacji:
    2021-12-29
    Wydawca:
    Uniwersytet Pedagogiczny im. Komisji Edukacji Narodowej w Krakowie
    Tematy:
    rzeczywistość językowa
    przestrzeń/sieć komunikacyjna
    oś
    odmiana języka
    proces długiego trwania
    language reality
    space/communication network
    axis
    variation of language
    process of long lasting
    Opis:
    An inalienable property of the linguistic reality is the multi-language nature of the world and the multi-variation character of the ethnic-national communication space. As regards Polish pace, one can distinguish a series of axes around which the processes of long lasting concentrate. The author discusses the following five axes: (1) idiolectal (individual languages), (2) one determined by the dichotomy: spoken language – written language (contemporarily it assumes the form: spoken language – media language – written language), (3) one connected with the opposition: dialects – literary language (today in the form: dialects – mixed languages – general language), (4) functional variations (their ‘canonical’ series: colloquial language – scientific language – journalistic language – language of the administration – religious language – artistic language), and (5) one of three styles (high – medium – low).
    Źródło:
    Annales Universitatis Paedagogicae Cracoviensis. Studia Linguistica; 2021, 16; 40-53
    2083-1765
    Pojawia się w:
    Annales Universitatis Paedagogicae Cracoviensis. Studia Linguistica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-12 z 12

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