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    Wyświetlanie 1-7 z 7
    Tytuł:
    Balanced scorecard as an effective method for process management in a transport company
    Autorzy:
    Olszańska, Sylwia
    Prokopiuk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2134856.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
    Tematy:
    balanced scorecard
    process management
    transport company
    zrównoważona karta wyników
    zarządzanie procesami
    firma transportowa
    Opis:
    The strategic scorecard represents a major element of an enterprise's management system, which contributes to improving the key areas of operation, as well as precisely defining operational goals, metrics and tasks within the strategical framework. Increasing competitiveness, as well as progressive globalisation of the Transport, Shipping and Logistics (TSL) services market, requires constant adaptation to change from managers. It is, therefore, appropriate to use the strategic scorecard as it can be applied for continuous monitoring of progress in the implementation of strategy and, if necessary, for enhancing actions and the measurement system. The authors analysed a transport company operating in the Podkarpackie Voivodship, with the implementation of the strategic scorecard. The purpose of this article was to create a strategic scorecard for the transport company in the context of streamlining transport processes, while simultaneously improving the quality of customer service, translating into maximising financial results.
    Źródło:
    Zeszyty Naukowe. Transport / Politechnika Śląska; 2021, 111; 119--128
    0209-3324
    2450-1549
    Pojawia się w:
    Zeszyty Naukowe. Transport / Politechnika Śląska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zautomatyzowany system do pomiaru parametrów energetycznych kwantowych laserów kaskadowych
    Automated system for measuring Quantum Cascade Laser parameters
    Autorzy:
    Mikołajczyk, J.
    Wojtas, J.
    Prokopiuk, A.
    Krzysiak, H.
    Bielecki, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/157814.pdf
    Data publikacji:
    2013
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    kwantowe lasery kaskadowe
    metrologia
    optoelektronika
    quantum cascade lasers
    metrology
    optoelectronics
    Opis:
    W pracy omówiono system pomiarowy, który jest przeznaczony do badań kwantowych laserów kaskadowych. Lasery te stanowią kolejny etap w rozwoju technik optoelektronicznych związanych np. ze spektroskopią lub łącznością optyczną w otwartej przestrzeni. Istotnymi elementami pracy są zaimplementowane procedury wyznaczenia parametrów laserów np. sprawności czy temperatur charakterystycznych. W części eksperymentalnej przedstawiono wyniki badań przykładowego lasera firmy Alpes Lasers S.A.
    Quantum cascade lasers (QC lasers) are very promising radiation sources in some optoelectronic techniques operating at the infrared and THz spectra. The lasers can be applied in many science areas and life fields e.g. spectroscopy or free-space optical communications. Progress in QC lasers technology contributes to the continuous improvement of their performances. But this developing process also requires the testing of each laser structure. One of the most important research tasks was to measure temperature characteristics of the light-current-voltage and to determine the threshold current, the slope efficiency or characteristic temperatures. The paper presents a measurement system for investigating some QC laser parameters using specialized equipment such as: a precision current driver,a temperature controller with laser housing, an optical power meter and a detection module (Fig. 4). Important features of the system are the implemented procedures for pulse shape acquisition and determination of the main performance of QC lasers. There are also listed the main requirements for both ranges and methodologies of the measured signals. Using a resistor and a laser diode (650 nm), preliminary studies were performed to verify operation of the measuring system (Figs. 5 and 6). In the main part of the paper the measurements results of the QC laser sample produced by Alpes Lasers SA are presented (Fig. 7). In the conclusions a brief description of the system performances and directions for its further development are given.
    Źródło:
    Pomiary Automatyka Kontrola; 2013, R. 59, nr 4, 4; 277-280
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Laboratory System for Quantum Cascade Lasers Researching
    Autorzy:
    Mikołajczyk, J.
    Pichola, W.
    Wojtas, J.
    Mamajek, M.
    Garlińska, M.
    Prokopiuk, A.
    Bielecki, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/1399386.pdf
    Data publikacji:
    2013-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    85.60.Bt
    85.60.Jb
    42.55.Px
    42.72.Ai
    Opis:
    The paper presents a prototype of a driving system designed to laboratory investigations of quantum cascade lasers. Significant requirements of these lasers operation, as well as a construction of the main components of the system were analyzed. During the performed investigations, a tuning range of both current pulses and temperature control operation were determined. Additionally the method of monitoring both current and voltage of the lasers was also described. As a summary, results of laboratory studies of the system with the use of commercial quantum cascade lasers were presented.
    Źródło:
    Acta Physica Polonica A; 2013, 124, 3; 505-508
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Free-Space Optics Development
    Autorzy:
    Mikołajczyk, J.
    Bielecki, Z.
    Bugajski, M.
    Piotrowski, J.
    Wojtas, J.
    Gawron, W.
    Szabra, D.
    Prokopiuk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/221245.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    optical communications
    open path laser communications
    line of sight communications
    free space optics
    Opis:
    The article presents state of work in technology of free-space optical communications (Free Space Optics - FSO). Both commercially available optical data links and their further development are described. The main elements and operation limiting factors of FSO systems have been identified. Additionally, analyses of FSO/RF hybrid systems application are included. The main aspects of LasBITer project related to such hybrid technology for security and defence applications are presented.
    Źródło:
    Metrology and Measurement Systems; 2017, 24, 4; 653-674
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Optoelektroniczne sensory gazów
    Optoelectronic gas sensors
    Autorzy:
    Bielecki, Z.
    Wojtas, J.
    Stacewicz, T.
    Mikołajczyk, J.
    Rutecka, B.
    Mędrzycki, R.
    Prokopiuk, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/152878.pdf
    Data publikacji:
    2013
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    sensory gazów
    spektroskopia strat we wnęce optycznej
    wykrywanie materiałów wybuchowych
    analiza wydychanego powietrza
    gas sensors
    cavity ring-down spectroscopy
    explosives detection
    breath analyses
    Opis:
    W artykule przedstawiono prace dotyczące optoelektronicznych sensorów gazów oraz osiągnięcia własne w zakresie wykrywania tlenków azotu (NOx). W sensorach do wykrywania NOx zastosowano polskie lasery emitujące promieniowanie o długości fali 410 nm oraz nowoczesne kwantowe lasery kaskadowe na zakres podczerwieni. Opracowane sensory charakteryzują się czułością graniczną na poziomie ppb i mogą być zastosowane do monitoringu zanieczyszczeń atmosfery, wykrywania materiałów wybuchowych oraz w diagnostyce chorób.
    The paper presents an overview of a few optoelectronic technologies for gases detection. Two sensors of nitrogen oxides (NOx) are also described. In the sensors the cavity enhanced absorption spectroscopy was applied. It is characterized by a very good sensitivity and selectivity of the detection process. The main aspect of its operation bases on absorption of the light by specific compounds. The identification of the matter is determined by spectral matching of the two spectra: optical radiation and absorption lines of species of interest. In contrast to the remote detection methods, the measurements are made at the place of sampling. Polish laser diodes and modern quantum cascade lasers were used there. Laser emission wavelengths were located in the visible (410 nm) and infrared range. The detection limit of ppb level was achieved. Due to that, they can be successfully applied to monitoring of atmospheric pollution, explosives detection and in diseases diagnosis. The preliminary studies using the developed sensors showed that it was possible to detect explosives such as TNT, PETN, RDX, HMX at the level of ng. Additionally, there is also discussed application of sensors to analysis of the exhaled air. This will be particularly useful for: the early detection of a disease, the monitoring of the therapy, the monitoring of the greenhouse exogenous (bacterial emissions or toxins), or the analysis of metabolic gases.
    Źródło:
    Pomiary Automatyka Kontrola; 2013, R. 59, nr 4, 4; 287-291
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Detection of Gaseous Compounds with Different Techniques
    Autorzy:
    Mikołajczyk, J.
    Bielecki, Z.
    Stacewicz, T.
    Smulko, J.
    Wojtas, J.
    Szabra, D.
    Lentka, Ł.
    Prokopiuk, A.
    Magryta, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/220919.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    gas sensors
    laser absorption spectroscopy
    CEAS
    MUPASS
    breath analyses
    medical screening
    Opis:
    Sensing technology has been developed for detection of gases in some environmental, industrial, medical, and scientific applications. The main tasks of these works is to enhance performance of gas sensors taking into account their different applicability and scenarios of operation. This paper presents the descriptions, comparison and recent progress in some existing gas sensing technologies. Detailed introduction to optical sensing methods is presented. In a general way, other kinds of various sensors, such as catalytic, thermal conductivity, electrochemical, semiconductor and surface acoustic wave ones, are also presented. Furthermore, this paper focuses on performance of the optical method in detecting biomarkers in the exhaled air. There are discussed some examination results of the constructed devices. The devices operated on the basis of enhanced cavity and wavelength modulation spectroscopies. The experimental data used for analyzing applicability of these different sensing technologies in medical screening. Several suggestions related to future development are also discussed.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 2; 205-224
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    System of Optoelectronic Sensors for Breath Analysis
    Autorzy:
    Mikołajczyk, J.
    Wojtas, J.
    Bielecki, Z.
    Stacewicz, T.
    Szabra, D.
    Magryta, P.
    Prokopiuk, A.
    Tkacz, A.
    Panek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/221463.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    breath analyses
    biomarkers
    laser absorption spectroscopy
    CEAS
    MUPASS
    medical screening
    Opis:
    The paper describes an integrated laser absorption system as a potential tool for breath analysis for clinical diagnostics, online therapy monitoring and metabolic disorder control. The sensors operate basing on cavity enhanced spectroscopy and multi-pass spectroscopy supported by wavelength modulation spectroscopy. The aspects concerning selection of operational spectral range and minimization of interference are also discussed. Tests results of the constructed devices collected with reference samples of biomarkers are also presented. The obtained data provide an opportunity to analyse applicability of optoelectronic sensors in medical screening.
    Źródło:
    Metrology and Measurement Systems; 2016, 23, 3; 481-489
    0860-8229
    Pojawia się w:
    Metrology and Measurement Systems
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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