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    Tytuł:
    Positive bilinear discrete-time systems with delays
    Dodatnie biliniowe układy dyskretne z opóźnieniami
    Autorzy:
    Kaczorek, T.
    Nguyen, A. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/153400.pdf
    Data publikacji:
    2006
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    biliniowość
    sterowalność
    opóźnienie
    dodatni układ dyskretny
    bilinear system
    controllability
    delay
    discrete-time
    positive system
    Opis:
    Necessary and sufficient conditions are established for the positivity of bilinear discrete-time systems with delays. Solutions to positive bilinear discrete-time systems are derived. The controllability to zero of the bilinear positive systems with delays is addressed. Necessary and sufficient conditions for the controllability to zero of positive bilinear systems with delays are formulated and proved. The considerations are illustrated by examples.
    Podano warunki konieczne i wystarczające dodatności biliniowych układów dyskretnych z opóźnieniami w wektorze stanu i w wymuszeniu. Podano również metodę wyznaczania rozwiązania tych biliniowych układów dyskretnych z opóźnieniami. Wyprowadzono warunki konieczne i wystarczające sterowalności do zera tej klasy układów dodatnich. Rozwiązanie ogólne zostało zilustrowane przykładem liczbowym.
    Źródło:
    Pomiary Automatyka Kontrola; 2006, R. 52, nr 10, 10; 75-78
    0032-4140
    Pojawia się w:
    Pomiary Automatyka Kontrola
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Gaze-J2K: gaze-influenced image coding using eye trackers and JPEG 2000
    Autorzy:
    Nguyen, A.
    Chandran, V.
    Sridharan, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/309070.pdf
    Data publikacji:
    2006
    Wydawca:
    Instytut Łączności - Państwowy Instytut Badawczy
    Tematy:
    eye tracking
    image compression
    importance map
    JPEG 2000
    region of interest
    Opis:
    The use of visual content in applications of the digital computer has increased dramatically with the advent of the Internet and world wide web. Image coding standards such as JPEG 2000 have been developed to provide scalable and progressive compression of imagery. Advances in image and video analysis are also making human-computer interaction multi-modal rather than through the use of a keyboard or mouse. An eye tracker is an example input device that can be used by an application that displays visual content to adapt to the viewer. Many features are required of the format to facilitate this adaptation, and some are already part of image coding standards such as JPEG 2000. This paper presents a system incorporating the use of eye tracking and JPEG 2000, called Gaze-J2K, to allow a customised encoding of an image by using a user's gaze pattern. The gaze pattern is used to automatically determine and assign importance to fixated regions in an image, and subsequently constrain the encoding of the image to these regions.
    Źródło:
    Journal of Telecommunications and Information Technology; 2006, 1; 3-10
    1509-4553
    1899-8852
    Pojawia się w:
    Journal of Telecommunications and Information Technology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Software Startups – A Research Agenda
    Autorzy:
    Unterkalmsteiner, M.
    Abrahamsson, P.
    Wang, X. F.
    Nguyen-Duc, A.
    Shah, S.
    Bajwa, S. S.
    Baltes, G. H.
    Conboy, K.
    Cullina, E.
    Dennehy, D.
    Edison, H.
    Fernandez-Sanchez, C
    Garbajosa, J.
    Gorschek, T.
    Klotins, E.
    Hokkanen, L.
    Kon, F.
    Lunesu, I.
    Marchesi, M.
    Morgan, L.
    Oivo, M.
    Selig, C.
    Seppänen, P.
    Sweetman, R.
    Tyrväinen, P.
    Ungerer, C.
    Yagüe, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/953060.pdf
    Data publikacji:
    2016
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    software startup
    research agenda
    software-intensive systems
    Opis:
    Software startup companies develop innovative, software-intensive products within limited time frames and with few resources, searching for sustainable and scalable business models. Software startups are quite distinct from traditional mature software companies, but also from micro-, small-, and medium-sized enterprises, introducing new challenges relevant for software engineering research. This paper’s research agenda focuses on software engineering in startups, identifying, in particular, 70+ research questions in the areas of supporting startup engineering activities, startup evolution models and patterns, ecosystems and innovation hubs, human aspects in software startups, applying startup concepts in non-startup environments, and methodologies and theories for startup research. We connect and motivate this research agenda with past studies in software startup research, while pointing out possible future directions. While all authors of this research agenda have their main background in Software Engineering or Computer Science, their interestin software startups broadens the perspective to the challenges, but also to the opportunities that emerge from multi-disciplinary research. Our audience is therefore primarily software engineering researchers, even though we aim at stimulating collaborations and research that crosses disciplinary boundaries. We believe that with this research agenda we cover a wide spectrum of the software startup industry current needs.
    Źródło:
    e-Informatica Software Engineering Journal; 2016, 10, 1; 89-123
    1897-7979
    Pojawia się w:
    e-Informatica Software Engineering Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Difference in flotation behavior of galena by single and multi-step chronoamperometric oxidation
    Autorzy:
    Ozdemir, Orhan
    Hampton, Marc A
    Nguyen, Tuan
    Nguyen, Anh
    Powiązania:
    https://bibliotekanauki.pl/articles/110510.pdf
    Data publikacji:
    2019
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    surface roughness
    hydrophobicity
    contact angle
    elemental sulfur
    galena
    chronoamperometry
    Opis:
    The relationship between electrochemical oxidation (Chronoamperometry) of galena surfaces and collocterless galena flotation was investigated in detail. The chronoamperometry (CA) micro- flotation experiments and zeta potential experiments were performed with ground galena particles (106×53 μm). In addition, contact angle measurements were carried out with a freshly cleaved galena sample at pH 4 in order to investigate any changes in galena surface hydrophobicity after the surface oxidation electrochemically. The results from this study indicated that there is a strong link between the nano/micro-physico-chemical properties of a sulphide on galena surfaces and collectorless flotation of galena particles at pH 4. The results were also supported with the electrokinetics behavior and contact angle values of galena particles.
    Źródło:
    Physicochemical Problems of Mineral Processing; 2019, 55, 3; 812-821
    1643-1049
    2084-4735
    Pojawia się w:
    Physicochemical Problems of Mineral Processing
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The problem of the abolition of slavery and maritime rights on U.S. vessels with regards to British-American relations in the first half of the 19th century
    Problem zniesienia niewolnictwa i praw morskich na statkach Stanów Zjednoczonych w relacjach brytyjsko-amerykańskich w pierwszej połowie XIX wieku
    Autorzy:
    Sang, Nguyen Van
    Daszyńska, Jolanta A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1042495.pdf
    Data publikacji:
    2020-12-30
    Wydawca:
    Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
    Tematy:
    Wielka Brytania
    Stany Zjednoczone Ameryki
    Kormet
    Encomium (Chwalba)
    Enterprise (Przedsięwzięcie)
    Hermosa
    Creole (Kreol)
    Daniel Webster
    Lord Ashburton
    niewolnictwo
    prawa morskie
    Great Britain
    the United States of America
    Comet
    Encomium
    Enterprise
    Creole
    slavery
    maritime rights
    Opis:
    The article analyses the struggle of Anglo-American relations connected to slaves and maritime rights on the sea from 1831 to 1842. The study is based on monographs, reports, treaties and correspondences between the two countries from the explosion of the Comet case in 1831 to the signing of the Webster–Ashburton treaty in 1842. This study focuses on three fundamental issues: the appearance of Comet, Encomium, Enterprise, Hermosa and Creole as international incidents with regards to British-American relations; the view of both countries on the abolition of slavery, maritime rights as well as the dispute over issues to resolve arising from these incidents; the results of British-American diplomacy to release slaves and maritime rights after the signing of the Webster–Ashburton treaty. The study found that the American slave ships were special cases in comparison with the previous controversies in bilateral relations. The American slave vessels sailed to the British colonies due to bad weather conditions and a slave rebellion on board. In fact, Great Britain and the United States had never dealt with a similar case, so both sides failed to find a unified view regarding the differences in the laws and policies of the two countries on slavery. The history of British-American relations demonstrated that under the pressures of the border dispute in Maine and New Brunswick, the affairs were not resolved. In addition, it could have had more of an impact on the relationship between the two countries, eventually p the two countries into a war. In that situation, the diplomatic and economic solutions given to the abolition of slavery and maritime rights were only temporary. However, the international affairs related to the American slave vessels paved the way for the settlement of maritime rights for British-American relations in the second half of 19th century.
    W artykule zostały przeanalizowane nabrzmiałe konflikty w anglo-amerykańskich relacjach dotyczących kwestii niewolnictwa i praw morskich w okresie od 1831 do 1842 r. Są one oparte na analizie monografii, raportów, postanowień traktatowych oraz korespondencji amerykańskich i brytyjskich dyplomatów od momentu tzw. incydentu Kormeta (Cormet) w 1831 r. do podpisania traktatu Webstera–Ashburtona w 1842 r. W artykule zostały poruszone trzy najważniejsze sprawy, mianowicie kwestie statków: Kormeta, Encomium, Enterprise, Hermosa i Kreola jako międzynarodowych problemów w relacjach brytyjsko-amerykańskich, poglądy obu państw na kwestię zniesienia niewolnictwa, prawa morskie, jak również dyskusja na temat tego, jak rozwiązać powstałe konflikty morskie, które związane były bezpośrednio z kwestią przewożenia niewolników. W artykule ukazano, że przewóz niewolników na amerykańskich statkach stał się powodem do podjęcia nadzwyczajnych przedsięwzięć, które nie miały miejsca w dotychczasowych bilateralnych stosunkach. Gdy po raz pierwszy amerykańskie statki z niewolnikami dopłynęły do brytyjskich kolonii z uwagi na złe warunki pogodowe i bunt niewolników na pokładzie, to z uwagi na to, że do tej pory ani USA, ani Wielka Brytania nie miały do czynienia z podobnymi przypadkami, w efekcie żadnej ze stron nie udało się znaleźć jednolitego poglądu. Dopiero pod presją sporu granicznego dotyczącego Maine i Nowego Brunszwiku podjęto rozwiązania, które uchroniły oba kraje przed rozpoczęciem konfliktu zbrojnego. Podjęto tymczasowe rozwiązania dotyczące niewolników i praw morskich, ale sprawy międzynarodowe związane z amerykańskimi statkami przewożącymi niewolników przyczyniły się do otworzenia drogi regulującej prawa morskie w stosunkach brytyjsko-amerykańskich. Była to nagląca potrzeba.
    Źródło:
    Przegląd Nauk Historycznych; 2020, 19, 2; 105-139
    1644-857X
    2450-7660
    Pojawia się w:
    Przegląd Nauk Historycznych
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Expert judgement-based tuning of the system reliability neural network
    Autorzy:
    Brandowski, A.
    Nguyen, H.
    Frąckowiak, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/258506.pdf
    Data publikacji:
    2014
    Wydawca:
    Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
    Tematy:
    neural network
    reliability
    elicitation
    parameter
    correlation
    Opis:
    The neural network tuning procedure applied to reliability analyses of anthrop technical systems, based on judgements of experts - experienced operating practicians. Numerical and linguistic elicitation of the judgements, analyses of the network input and output data correlation and of the AHP method processing deviation are presented. Example of data elicitation and correlation analysis of a reliability arrangement of the seagoing ship propulsion system are included to the article.
    Źródło:
    Polish Maritime Research; 2014, 1; 28-34
    1233-2585
    Pojawia się w:
    Polish Maritime Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A method for learning scenario determination and modification in intelligent tutoring systems
    Autorzy:
    Kozierkiewicz-Hetmańska, A.
    Nguyen, N. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/907820.pdf
    Data publikacji:
    2011
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    system e-learningowy
    nauczanie zdalne
    inteligentny system uczący
    e-learning system
    intelligent tutoring system
    learning scenario
    personalization
    Opis:
    Computers have been employed in education for years. They help to provide educational aids using multimedia forms such as films, pictures, interactive tasks in the learning process, automated testing, etc. In this paper, a concept of an intelligent e-learning system will be proposed. The main purpose of this system is to teach effectively by providing an optimal learning path in each step of the educational process. The determination of a suitable learning path depends on the student's preferences, learning styles, personal features, interests and knowledge state. Therefore, the system has to collect information about the student, which is done during the registration process. A user is classified into a group of students who are similar to him/her. Using information about final successful scenarios of students who belong to the same class as the new student, the system determines an opening learning scenario. The opening learning scenario is the first learning scenario proposed to a student after registering in an intelligent e-learning system. After each lesson, the system tries to evaluate the student's knowledge. If the student has a problem with achieving an assumed score in a test, this means that the opening learning scenario is not adequate for this user. In our concept, for this case an intelligent e-learning system offers a modification of the opening learning scenario using data gathered during the functioning of the system and based on a Bayesian network. In this paper, an algorithm of scenario determination (named ADOLS) and a procedure for modifying the learning scenario AMLS with auxiliary definitions are presented. Preliminary results of an experiment conducted in a prototype of the described system are also described.
    Źródło:
    International Journal of Applied Mathematics and Computer Science; 2011, 21, 1; 69-82
    1641-876X
    2083-8492
    Pojawia się w:
    International Journal of Applied Mathematics and Computer Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Determination of Exciton Zeeman Splittings in Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te from Faraday Rotation Measurements
    Autorzy:
    Stachow, A.
    Nguyen, The Khoi
    Gaj, J. A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933998.pdf
    Data publikacji:
    1995-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.20.Ls
    71.35.+z
    Opis:
    Reflectivity and Faraday rotation measurements were carried out on Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te bulk crystals in the complete zinc-blende range of composition 0 < x ≤ 0.71. From a comparison of the results of these two experiments for samples with x ≤ 0.3, we demonstrate that the Faraday angle Θ, measured in limited spectral range, is proportional to the energy splitting of exciton states ΔE, measured at the same temperature (2 K) and magnetic field B (up to 5 T). The determined proportionality constant was used to calculate ΔE values also for x > 0.3. This allowed us to find an empirical description of ΔE values for the whole range of compositions as a function of B and x.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 5; 909-912
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Wplyw substancji antyzywieniowych nasion lnu na wyniki odchowu kurczat brojlerow.
    Autorzy:
    Van, Cam Nguyen
    Smolikowska, S.
    Mieczkowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/832690.pdf
    Data publikacji:
    2001
    Wydawca:
    Instytut Hodowli i Aklimatyzacji Roślin
    Tematy:
    wyniki odchowu
    kurczeta
    zywienie zwierzat
    nasiona
    brojlery
    len
    substancje antyzywieniowe
    rearing result
    chicken
    animal feeding
    seed
    broiler
    flax
    antinutritive substance
    Źródło:
    Rośliny Oleiste - Oilseed Crops; 2001, 22, 1; 165-172
    1233-8273
    Pojawia się w:
    Rośliny Oleiste - Oilseed Crops
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Thermal-mechanical coupled simulation
    Autorzy:
    Nguyen, H. P.
    Derewońko, A.
    Niezgoda, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/244229.pdf
    Data publikacji:
    2015
    Wydawca:
    Instytut Techniczny Wojsk Lotniczych
    Tematy:
    thermo-mechanical coupled
    simulation
    plastic deformation
    Opis:
    Optimal design of engineering structures and technological processes requires taking into account various factors affecting the state of strain and stresses in the structure. Coupled thermo-mechanical analysis enables, among others, determination of undesirable changes in a body shape resulting from the implementation method of the initially-boundary conditions, for example, time-varying load and physical properties of the material depending on the temperature. They are also used to determine residual stresses remaining after manufacturing to prevent revalued stiffness and rigidity of the designed construction. In this study, coupled thermo-mechanical analysis illustrated by metal machining operation is presented. The commercial code MSC.Marc has been used to develop a coupled thermo-mechanical finite element model of plane-stress orthogonal metal cutting operations. Metal cutting is one of the most important and common manufacturing processes in the car industry. A thermal mechanical transient analysis is performed to convert mechanical work into heat by plastic deformation of the workpiece material and friction during metal machining operation. The finite element mesh distortion, due to large deformations, requires a remesh technique. The influence of parameters of the 2D and 3D finite element mesh adaptation on plastic deformation and temperature generated in the cutting processing is considered.
    Źródło:
    Journal of KONES; 2015, 22, 3; 161-168
    1231-4005
    2354-0133
    Pojawia się w:
    Journal of KONES
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modeling of Spatial Solitons in Twisted Nematics Waveguides
    Autorzy:
    Karpierz, M. A.
    Brzdąkiewicz, K. A.
    Nguyen, Q. V.
    Powiązania:
    https://bibliotekanauki.pl/articles/2035666.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.65.Wi
    42.70.Df
    Opis:
    Theoretical analysis of light beam propagation in twisted nematic liquid crystalline waveguides is presented. Due to the optical reorientation nonlinearity, the light beam changes the direction of propagation and optical spatial soliton is formed. Modeling of such behavior is presented by using (2+1)-dimensional vector beam propagation method as well as simplified (1+1)-dimensional method. Although both approaches give similar results, the differences are discussed in detail.
    Źródło:
    Acta Physica Polonica A; 2003, 103, 2-3; 169-175
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Luminescence Spectra of ZnAl$\text{}_{2}$O$\text{}_{4}$:Cr$\text{}^{3+}$ Spinel Nanopowders
    Autorzy:
    Luc, H. H.
    Nguyen, T. K.
    Nguyen, V. M.
    Suchocki, A.
    Kamińska, A.
    Le, V. K.
    Nguyen, V. H.
    Luong, T. T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2037040.pdf
    Data publikacji:
    2003-12
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.60.-b
    72.80.Ga
    81.05.Je
    81.05.Mh
    Opis:
    The synthetic ZnAl$\text{}_{2}$O$\text{}_{4}$ spinels doped with Cr$\text{}^{3+}$ ions are prepared from ZnSO$\text{}_{4}$, Al$\text{}_{2}$(SO$\text{}_{4}$)$\text{}_{3}$, and Cr$\text{}_{2}$(SO$\text{}_{4}$)$\text{}_{3}$. The spinel single phase is detected from X-ray diffraction. Luminescence properties of Cr$\text{}^{3+}$ in ZnAl$\text{}_{2}$O$\text{}_{4}$ were studied by low temperature luminescence and decay measurements. Four luminescence lines at 14570, 14520, 14460, and 14330 cm$\text{}^{-1}$ were found to originate from structure distortion and the line at 14175 cm$\text{}^{-1}$ - from chromium pairs. The broad emission band at about 13540 cm$\text{}^{-1}$ is considered to arise from a new Cr$\text{}^{3+}$ center in ZnCr$\text{}_{2}$O$\text{}_{4}$.
    Źródło:
    Acta Physica Polonica A; 2003, 104, 6; 581-587
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modular intelligent fixture system for flexible clamping of large parts
    Autorzy:
    Möhring, H.-C.
    Gessler, W.
    König, A.
    Nguyen, L. T.
    Nguyen, Q. P.
    Powiązania:
    https://bibliotekanauki.pl/articles/100187.pdf
    Data publikacji:
    2017
    Wydawca:
    Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
    Tematy:
    machine tool
    modular fixture
    hybrid material
    intelligent system
    Opis:
    In this work a modular intelligent fixture system for flexible clamping of large parts is presented. The fixture modules consist of a hybrid material structure involving metal frame elements and mineral casting. These modules can be combined and connected to realize fixtures adapted to the geometry of the workpiece and requirements of the machining processes. By integrated pipes and interfaces, an internal hydraulic supply and active cooling is possible even for combined modules. Temperature and acceleration sensors allow for an active thermal control and process monitoring. The modules and first test fixtures are investigated in experiments.
    Źródło:
    Journal of Machine Engineering; 2017, 17, 4; 29-39
    1895-7595
    2391-8071
    Pojawia się w:
    Journal of Machine Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scattering Dynamics of Excitons in ZnSe Based Semimagnetic Semiconductors
    Autorzy:
    Nguyen, The Khoi
    Mac, W.
    Gaj, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1921546.pdf
    Data publikacji:
    1992-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Pp
    78.30.Fs
    Opis:
    Resonant Raman scattering was measured for (Zn,Fe)Se and (Zn,Cr)Se with the magnetic ion mole fraction below 0.02. LO phonons and intra-Fe$\text{}^{++}$ transitions were observed. Polarization measurements versus magnetic field allowed to obtain polarization lifetimes (polariton flight times) in the sub-picosecond range.
    Źródło:
    Acta Physica Polonica A; 1992, 82, 4; 634-636
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany właściwości chemicznych i biologicznych gleby lekkiej pod wpływem nawadniania i nawożenia mineralnego w uprawie brzoskwini
    Changes of chemical and biological properties of a sandy soil caused by irrigation and mineral fertilization of peach trees
    Autorzy:
    Podsiadło, C.
    Jaroszewska, A.
    Nguyen Thi, B. L.
    Powiązania:
    https://bibliotekanauki.pl/articles/289900.pdf
    Data publikacji:
    2005
    Wydawca:
    Polskie Towarzystwo Inżynierii Rolniczej
    Tematy:
    gleba
    nawadnianie
    nawożenie
    bakterie
    brzoskwinia
    soil
    irrigation
    mineral fertilization
    bacteria
    peach
    Opis:
    Doświadczenia polowe z nawadnianiem i nawożeniem mineralnym brzoskwini przeprowadzono na glebie lekkiej w latach 2002-2003. Oceniano wpływ czynników doświadczenia między innymi na aktywność biologiczną gleby, określając między innymi liczebność bakterii, promieniowców oraz grzybów.
    Experiments with irrigation and mineral fertilization of peach trees grown on sandy soil were conducted in 2002-2003 years. The influence of both treatments on the soil biological actinity was tested, mainly on the number of some species of bacteria, actinomycete and fungi.
    Źródło:
    Inżynieria Rolnicza; 2005, R. 9, nr 4, 4; 135-143
    1429-7264
    Pojawia się w:
    Inżynieria Rolnicza
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Numerical analysis of rod uniaxial tension considering thermo-mechanical coupling effect
    Numeryczna analiza jednoosiowego rozciągania pręta z uwzględnieniem efektu sprzężenia termomechanicznego
    Autorzy:
    Nguyen, H. P.
    Niezgoda, T.
    Derewońko, A.
    Jachimowicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/263858.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    thermo-mechanical coupling
    uniaxial tension
    finite element method
    sprzężenie termomechaniczne
    jednoosiowe rozciąganie
    metoda elementów skończonych
    Opis:
    This paper presents numerical analyses of uniaxial tension tests on rods made of a material with elastic-plastic characteristics with mapping the temperature fields generated in the fields of plastic strains. The use of thermo-mechanical coupling algorithms implemented in CAE programs that enable us to enter the parameters of materials dependent on temperature and used to visualize the damage of the samples is presented. The numerical models were validated with experimental research.
    W pracy przedstawiono analizy numeryczne testów jednoosiowego rozciągania prętów wykonanych z materiału o charakterystyce sprężysto-plastycznej z odwzorowaniem pól temperatury generowanych w obszarach odkształceń trwałych. Zaprezentowano wykorzystanie algorytmów sprzężenia termomechanicznego zaimplementowanych w programach CAE, umożliwiających wprowadzenie parametrów materiałów zależnych od temperatury oraz stosowanych do wizualizacji zniszczenia próbek. Wyniki symulacji zwalidowano badaniami eksperymentalnymi.
    Źródło:
    Metallurgy and Foundry Engineering; 2015, 41, 4; 189-199
    1230-2325
    2300-8377
    Pojawia się w:
    Metallurgy and Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Separation of Electronic and Nuclear Contributions to the Third-Order Nonlinear Optical Susceptibilities of New Tetrathiafulvalene Derivatives Using Degenerate Four Wave Mixing
    Autorzy:
    Sahraoui, B.
    Nguyen Phu, X.
    Sallé, M.
    Gorgues, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2008276.pdf
    Data publikacji:
    1999-05
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    42.65.Ky
    78.66.Qn
    42.70.Nq
    Opis:
    We separate the electronic and nuclear contributions to the third-order nonlinear optical susceptibilities χ$\text{}_{ijkl}^{〈3〉}$ using degenerate four wave mixing. This method allows to know the physical origin of the optical nonlinearities of new soluble tetrathiafulvalene derivatives and deduce the values of the second-order hyperpolarisabilities γ. The values of γ for the studied compounds are about 10$\text{}^{5}$ greater than for CS$\text{}_{2}$.
    Źródło:
    Acta Physica Polonica A; 1999, 95, 5; 837-842
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Application of Virtual Reality for Remote Ship Inspections and Surveys – A Systematic Review
    Autorzy:
    Sheriff, A.
    Anantharaman, M.
    Islam, R.
    Nguyen, H. O.
    Powiązania:
    https://bibliotekanauki.pl/articles/24201482.pdf
    Data publikacji:
    2023
    Wydawca:
    Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
    Tematy:
    international transport
    real time
    unmanned aerial vehicle
    remote control
    virtual reality
    flag state duty
    coronavirus pandemic
    Opis:
    The use of virtual reality for the establishment of compliance is a potential game-changer in enabling real-time remote inspections/ surveys of vessels. When provided with high-speed internet access, robots or remote-controlled inspection vehicles such as drones, crawlers, unmanned aerial vehicles (UAVs), and so on, may be equipped with remote inspection technologies (RITs), and smart optical cameras and sensor suites in conjunction with wearable technologies, and smart/ mobile devices, to carry out an aerial and underwater virtual assessment of the coating condition of the steel structural members of the vessel while transmitting the data in real-time or near real-time, via collaborative software. To ease the travel restrictions and border closures prompted by the Coronavirus (COVID-19), these novel technologies have been introduced by some flag states and classification as alternatives to traditional in-person statutory inspections/ class surveys. This study aims to employ a systematic literature review (SLR) approach to (1) classify the profiles of existing publications related to remote inspections/ surveys, (2) highlight the key thematic areas being discussed within the domain of remote inspections/ surveys and identify tasks and processes that may require virtual reality application. To the best of our knowledge, the findings have revealed that there is no existing SLR paper related to the application of remote inspection techniques in ship inspections/ surveys. However, the review retrieved 28 primary studies from the following databases: Scopus, Web of Science, Science Direct, and Google Scholar. Based on the results, various studies have proposed multifarious solutions to overcoming the existing technical and regulatory barriers to the mass deployment of these cutting-edge technologies.
    Źródło:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2023, 17, 3; 587--594
    2083-6473
    2083-6481
    Pojawia się w:
    TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A syntactic component for Vietnamese language processing
    Autorzy:
    Le-Hong, P.
    Roussanaly, A.
    Nguyen, T. M. H.
    Powiązania:
    https://bibliotekanauki.pl/articles/103931.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Podstaw Informatyki PAN
    Tematy:
    language
    parsing
    segmentation
    syntactic component
    tagging
    tree-adjoining grammar
    Vietnamese
    Opis:
    This paper presents the development of a grammar and a syntactic parser for the Vietnamese language. We first discuss the construction of a lexicalized tree-adjoining grammar using an automatic extraction approach. We then present the construction and evaluation of a deep syntactic parser based on the extracted grammar. This is a complete system that produces syntactic structures for Vietnamese sentences. A dependency annotation scheme for Vietnamese and an algorithm for extracting dependency structures from derivation trees are also proposed. This is the first Vietnamese parsing system capable of producing both constituency and dependency analyses. It offers encouraging performance: accuracy of 69.33% and 73.21% for constituency and dependency analysis, respectively.
    Źródło:
    Journal of Language Modelling; 2015, 3, 1; 145-184
    2299-856X
    2299-8470
    Pojawia się w:
    Journal of Language Modelling
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scattering Dynamics of Free Excitons on Fe$\text{}^{++}$ Ions in Cd$\text{}_{1-x}$Fe$\text{}_{x}$Se
    Autorzy:
    Gaj, J. A.
    Nguyen, The Khoi
    Nawrocki, M.
    Golnik, A.
    Lebecki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1891231.pdf
    Data publikacji:
    1991-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Pp
    78.30.Fs
    Opis:
    Inelastic scattering of excitons on Fe$\text{}^{++}$ ions in Cd$\text{}_{1-x}$Fe$\text{}_{x}$Se was studied by resonant Raman scattering. Polarization measurements were done using a modulation technique, allowing for the first time to determine the full polarization state of the detected light. The obtained results were compared to a simple calculation in an incoherent model of scattering on Fe$\text{}^{++}$ ions.
    Źródło:
    Acta Physica Polonica A; 1991, 80, 3; 409-412
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature Dependence of the Energy Gap in Cd$\text{}_{1-x}$Fe$\text{}_{x}$Se
    Autorzy:
    Gaj, J. A.
    Nguyen, The Khoi
    Arciszewska, M.
    Lebecki, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/1891022.pdf
    Data publikacji:
    1991-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Pp
    Opis:
    The energy gap and magnetic susceptibility of Cd$\text{}_{0.85}$Fe$\text{}_{0.15}$Se were measured in function of temperature. Experiments showed that the magnetic contribution to the variation of the energy gap in Cd$\text{}_{1-x}$Fe$\text{}_{x}$Se is not proportional to the product of magnetic susceptibility and temperature as it has been observed in Mn$\text{}^{++}$-containing semiconductors.
    Źródło:
    Acta Physica Polonica A; 1991, 80, 3; 405-407
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Exchange Interaction in ZnCrSe Semimagnetic Semiconductor
    Autorzy:
    Mac, W.
    Nguyen, The Khoi
    Twardowski, A.
    Gaj, J. A.
    Demianiuk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1924249.pdf
    Data publikacji:
    1992-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Pp
    Opis:
    Magnetoreflectance and magnetization of ZnCrSe were measured for B ≤ 5 T and T = 2 K. A linear dependence between exciton splitting and magnetization was found. The s, p-d exchange parameter was estimated: N$\text{}_{0}$α-N$\text{}_{0}$β=0.67eV.
    Źródło:
    Acta Physica Polonica A; 1992, 82, 5; 902-904
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Magnetooptical Analysis of Interface Mixing in Pulsed Laser Evaporation and Epitaxy Grown CdTe/Cd$\text{}_{0.9}$Mn$\text{}_{0.1}$Te Multiple Quantum Well and Superlattice
    Autorzy:
    Lewalski, A.
    Nguyen, The Khoi
    Kossacki, P.
    Gaj, J. A.
    Dubowski, J. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1929672.pdf
    Data publikacji:
    1993-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    73.20.Dx
    78.20.Ls
    75.50.Pp
    Opis:
    A recently proposed magnetooptical method of determination of interface mixing was applied to CdTe/CdMnTe superstructures grown by pulsed laser evaporation and epitaxy. Diffusion length were found ≈ 5 Å for a multiple quantum well and > 15 Å for a superlattice. Ranges of Mn mole fractions and well width values enabling efficient application of the method were determined.
    Źródło:
    Acta Physica Polonica A; 1993, 84, 3; 571-574
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Faraday Rotation and Photoionization of ZnCrSe Semimagnetic Semiconductor
    Autorzy:
    Mac, W.
    Nguyen, The Khoi
    Gaj, J. A.
    Twardowski, A.
    Demianiuk, M.
    Stachow-Uciakowska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1929663.pdf
    Data publikacji:
    1993-09
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    75.50.Pp
    Opis:
    The magnetoabsorption and the Faraday rotation of ZnCrSe were measured for B ≤ 5 T and T = 2 K in the region of photon energies lower than the fundamental absorption edge. The circular dichroism of the photoionization absorption bane was observed and analyzed. The Faraday rotation was interpreted as due to the sum of contributions from interband and photoionization optical transitions.
    Źródło:
    Acta Physica Polonica A; 1993, 84, 3; 567-570
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An efficient pedestrian attribute recognition system under challenging conditions
    Autorzy:
    Nguyen, Ha X.
    Hoang, Dong N.
    Tran, Tuan A.
    Dang, Tuan M.
    Powiązania:
    https://bibliotekanauki.pl/articles/24200444.pdf
    Data publikacji:
    2023
    Wydawca:
    Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Instytut Informatyki Technicznej
    Tematy:
    pedestrian attribute recognition
    Deep Learning
    vision transformer
    security surveil-lance
    Opis:
    In this work, an efficient pedestrian attribute recognition system is introduced. The system is based on a novel processing pipeline that combines the best-performing attribute extraction model with an efficient attribute filtering algorithm using keypoints of human pose. The attribute extraction models are developed based on several state-of-the-art deep networks via transfer learning techniques, including ResNet50, Swin-transformer, and ConvNeXt. Pre-trained models of these networks are fine-tuned using the Ensemble Pedestrian Attribute Recognition (EPAR) dataset. Several optimization techniques, including the advanced optimizer Adam with Decoupled Weight Decay Regularization (AdamW), Random Erasing (RE), and weighted loss functions, are adopted to solve issues of data unbalancing or challenging conditions like partial and occluded bodies. Experimental evaluations are performed via EPAR that contains 26 993 images of 1477 person IDs, most of which are in challenging conditions. The results show that the ConvNeXt-v2-B outperforms other networks; mean accuracy (mA) reaches 85.57%, and other indices are also the highest. The addition of AdamW or RE can improve accuracy by 1-2%. The use of new loss functions can solve the issue of data unbalancing, in which the accuracy of data-less attributes improves by a maximum of 14% in the best case. Significantly, when the attribute filtering algorithm is applied, the results are dramatically improved, and mA reaches an excellent value of 94.85%. Utilizing the state-of-the-art attribute extraction model with optimization techniques on the large-scale and diverse dataset and attribute filtering has shown a good approach and thus has a high potential for practical applications.
    Źródło:
    Machine Graphics & Vision; 2023, 32, 2; 3--18
    1230-0535
    2720-250X
    Pojawia się w:
    Machine Graphics & Vision
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Temperature Dependence of Energy Gap of Highly Concentrated Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te(0.6 < x ≤ 1.0) Epilayers
    Autorzy:
    Stachow, A.
    Mac, W.
    Nguyen, The Khoi
    Twardowski, A.
    Karczewski, G.
    Janik, E.
    Wojtowicz, T.
    Kossut, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1934002.pdf
    Data publikacji:
    1995-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.40.Fy
    75.25.+z
    78.20.Ls
    Opis:
    The temperature dependence of the energy gap of MBE grown Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te (0.6 < x ≤ 1.0) was measured for 2 K ≤ T ≤ 200 K and B ≤ 5 T. The results are interpreted in the frames of the model predicting that the exchange contribution to the band edge shift is proportional to the product of the magnetic susceptibility and the temperature.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 5; 913-916
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    s,p-d Exchange Constants of ZnFeTe Diluted Magnetic Semiconductor
    Autorzy:
    Mac, W.
    Herbich, M.
    Nguyen, The Khoi
    Twardowski, A.
    Shapira, Y.
    Demianiuk, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933919.pdf
    Data publikacji:
    1995-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.20.Ls
    71.70.Gm
    Opis:
    Reflectance and degree of polarization of reflectance of the free exciton in Zn$\text{}_{1-x}$Fe$\text{}_{x}$Te (x ≈ 0.002) was measured at T = 1.9 K and magnetic field up to 5 T. Combining the exciton splitting with the magnetization data we estimated the exchange constant N$\text{}_{0}$(α-β) = 2.1 eV.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 5; 845-848
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lithofacies and depositional environments of the Paleogene/Neogene sediments in the Hoanh Bo Basin (Quang Ninh province, NE Vietnam)
    Autorzy:
    Hoang, V. T.
    Wysocka, A.
    Phan, D. P.
    Nguyen, Q. C.
    Ziółkowski, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/184794.pdf
    Data publikacji:
    2015
    Wydawca:
    Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
    Tematy:
    terrestrial environments
    lithofacies
    Paleogene
    Neogene
    Vietnam
    Opis:
    The Hoanh Bo Basin is a multiple period formed basin which is associated with the tectonic mechanism due to the activity of the Chi Linh-Hon Gai and Trung Luong Faults during the late Paleogene – early Neogene time. The basin is filled with continental sediments, comprising mainly polymictic conglomerates, sandstones, siltstones, claystones and shales. Coarser-grained polymictic deposits predominate along the northern and western margins of the basin, while different types of siltstones, claystones, even sandstones occur in its center, as well as along its southern and eastern parts toward the Ha Long Bay. The source rocks for sedimentary materials are mainly originated from rocks of the Hon Gai and Ha Coi Formations. Based on the dominant grain-size class, texture, stratification, degree of clast rounding and sorting, 17 lithofacies were determined in the Hoanh Bo Basin infill. The basin is filled by gravelly, sandy and fine-grained lithofacies just covers a modest area but it represents a full of succession of 4 depositional systems including alluvial fan, fluvial, deltaic and lacustrine environments. Alluvial fan and fluvial environments are characterized by an assemblage of lithofacies such as sand- and mud-supported disorganized breccias (Gb), clast- to sand-supported conglomerates (Gmm), clast-supported inverse-graded conglomerates (Gig), planar-cross-bedded conglomerates (Gp), trough cross-bedded conglomerates (Gt), horizontally stratified conglomerates (Gh), planar cross-bedded sandstones (Sp), trough cross-bedded sandstones (St), ripple cross-laminated sandstones (Sr), horizontally bedded sandstones (Sh), massive sandstones (Sm), massive mudstones, siltstones (Fsm), laminated siltstones and mudstones (Fl), massive claystones (Fm) and coaly lithofacies (C); the deltaic assemblage is dominated by planar-cross-bedded conglomerates (Gp), horizontally stratified conglomerates (Gh), planar cross-bedded sandstones (Sp), horizontally bedded sandstones (Sh), low-angle cross-bedded sandstones (Sl); while the lacustrine assemblage consists of ripple cross-laminated sandstones (Sr), horizontally bedded sandstones (Sh), normally graded sandstones (Sng), massive mudstones, siltstones (Fsm), laminated siltstones and mudstones (Fl), massive claystones (Fm) and coaly lithofacies (C).
    Źródło:
    Geology, Geophysics and Environment; 2015, 41, 4; 353-369
    2299-8004
    2353-0790
    Pojawia się w:
    Geology, Geophysics and Environment
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Agilometer: an effective implementation of Internet of things for agile demand response
    Autorzy:
    Babar, M.
    Grela, J.
    Ozadowicz, A.
    Nguyen, P. H.
    Hanzelka, Z.
    Kamphuis, I. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/136233.pdf
    Data publikacji:
    2017
    Wydawca:
    EEEIC International Barbara Leonowicz Szabłowska
    Tematy:
    demand response
    energy management system
    Internet of Things
    transactive based control mechanism
    smart metering
    Opis:
    Transactive based control mechanism (TCM) needs the IoT environment to fully explore flexibility potential from the end-users to offer to involved actors of the smart energy system. On the other hand, many IoT based energy management systems are already available to a market. This paper presents an ap-proach to connect the current demand-driven (top-down) energy management system (EMS) with a market-driven (bottom-up) demand response program. To this end, this paper considers multi-agent system (MAS) to realize the approach and introduces the concept and standardize design of Agilometer. It is described as an elemental agent of the approach. Proposed by authors Agilometer consists of three different functional blocks, which are formulated as an IoT platform according to the LonWorks standard. Moreover, the paper also performs an evaluation study in order to validate the proposed concept and design.
    Źródło:
    Transactions on Environment and Electrical Engineering; 2017, 2, 2; 58-63
    2450-5730
    Pojawia się w:
    Transactions on Environment and Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preparation and Luminescent Properties of ZnTe-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ Heterojunction
    Autorzy:
    Le Van, Khoi
    Dobrowolski, W.
    Witkowska, B.
    Mycielski, A.
    Galązka, R. R.
    Nguyen, Khoi
    Powiązania:
    https://bibliotekanauki.pl/articles/1872527.pdf
    Data publikacji:
    1995-02
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    78.60.Fi
    Opis:
    ZnTe-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ heterojunctions were prepared by vapor-transport epitaxy of ZnTe on In-doped Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ (x = 0.05, y = 0.03) single crystalline substrate in vacuum. At temperatures lower than 120 K the infrared and red electroluminescence were observed from the ZnTe-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ diode with forward current density in the range 0.003-4.0 A/cm$\text{}^{2}$.
    Źródło:
    Acta Physica Polonica A; 1995, 87, 2; 325-328
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Photovoltaic Effect of ZnTe-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ Heterojunctions in Presence of Magnetic Field
    Autorzy:
    Gałązka, R. R.
    Nguyen, The Khoi
    Khoi, Le Van
    Dobrowolski, W.
    Witkowska, B.
    Mycielski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/1933917.pdf
    Data publikacji:
    1995-11
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    71.25.Tn
    78.20.Ls
    72.80.Ga
    Opis:
    Photovoltaic effect of the ZnTe-Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ heterojunctions, prepared by vapor-transport epitaxy of ZnTe on Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ substrate was studied. The photovoltaic measurements were carried out over the temperature range from 12 K to 300 K and in the magnetic field up to 6 T. In the magnetic field, maximum of the sensitivity corresponding to the energy of the forbidden gap of Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te$\text{}_{1-y}$Se$\text{}_{y}$ substrate splits into two components for σ$\text{}^{+}$ and σ¯ circular polarizations of incident light. This phenomenon was ascribed to the exchange interaction of the magnetic moments of Mn$\text{}^{++}$ ions with band electrons. From the value of the splitting energy the exchange integral N$\text{}_{0}$(α-β) was determined to be 1.15 ± 0.2 eV.
    Źródło:
    Acta Physica Polonica A; 1995, 88, 5; 841-844
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Design of water supply networks for water transfer to the urban area Case study: Balikpapan city
    Autorzy:
    Huy, Dinh T.N.
    Dwijendra, Ngakan K.A.
    Poltarykhin, Andrey
    Suksatan, Wanich
    Nahi, Nooraldeen S.
    Mahmudiono, Trias
    Hai, Nguyen T.
    Kadhim, Mustafa M.
    Singh, Krishanveer
    Ahmed, Alim A.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2174373.pdf
    Data publikacji:
    2022
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    network design
    water distribution
    water shortage
    water supply network
    water transmission
    Opis:
    The growing population and the development of industries in all countries of the world have created a very important and complex issue for water supply to cities. Today, many parts of the world are facing the problem of water shortage and this problem cannot be easily solved. In addition to the proper use of water resources and preventing the loss of natural water, the establishment of regional water supply networks is effective in meeting the future needs of the people. A water distribution network (water supply network) is a set of interconnected pipelines used to transport and distribute water in a complex. In designing the water distribution network, factors such as the type of water distribution network, water pressure, water velocity, design flow, minimum pipe diameter, pipe material and many other factors should be considered. In this study, we have tried to design the water supply network of a part of Balikpapan city in Indonesia. The design method led to the determination of pressure values in the connection nodes, pipe diameters, flow rate and velocity in the pipes. All the existing criteria are considered in the design of the water supply network. Although this study has been implemented for a specific study area, it can be of great help to designers in designing the water supply network.
    Źródło:
    Journal of Water and Land Development; 2022, 54; 251--254
    1429-7426
    2083-4535
    Pojawia się w:
    Journal of Water and Land Development
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mechanism of Optical Detection of Magnetic Resonance in Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te
    Autorzy:
    Godlewski, M.
    Surma, M.
    Gałązka, R. R.
    Nguyen, The Khoi
    Gisbergen, S.J.C.H.M.
    Gregorkiewicz, T.
    Ammerlaan, C. A. J.
    Powiązania:
    https://bibliotekanauki.pl/articles/1921620.pdf
    Data publikacji:
    1992-10
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    76.70.Hb
    75.50.Pp
    78.20.Ls
    Opis:
    The photoluminescence and optically detected magnetic resonance studies of Cd$\text{}_{1-x}$Mn$\text{}_{x}$Te (x = 0.095) are presented. The Mn$\text{}^{2+}$ magnetic resonance is detected optically via the changes of "edge" emission induced by the decrease of the Mn spin system magnetization.
    Źródło:
    Acta Physica Polonica A; 1992, 82, 4; 717-719
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Hemifacial asymmetries in age perception: the left cheek looks older for females, but not males
    Autorzy:
    Lindell, Annukka K
    Cianchetta, Rhiannon O
    Azim, Sana M
    Freeman, Cody G
    de Oliveira, Nicole C
    Saban, Sakire
    Messina, Julia L
    Wilson, Kira Elise
    Egan, Alanna
    Caspar, Megan D
    Grey, Emma J
    McDonald, Bryce A
    Croxford, Kylie N
    Bui, Thu Trang
    Aiello, Ashley A
    Heywood-Smith, Victoria M
    Kidd, Andrew J
    Stanley, Shenae C
    Wakeling, Alarna
    Hoggan, Stephanie A.L
    Morriss, Ashleigh S
    Trinh, Thi Phuong Mai
    Thai-Nguyen, Hong
    Fonte, Melissa
    Agolli, Franceska
    Powiązania:
    https://bibliotekanauki.pl/articles/2106020.pdf
    Data publikacji:
    2019-12-18
    Wydawca:
    Fundacja Edukacji Medycznej, Promocji Zdrowia, Sztuki i Kultury Ars Medica
    Tematy:
    emotion
    asymmetry
    hemisphere
    laterality
    age
    Opis:
    The left hemiface expresses emotion more intensely than the right. Because emotional expressions contract the facial muscles and wrinkle the skin, theoretically the left hemiface’s greater expressivity should prompt more pronounced expression lines and wrinkles on the left than right side of the face. As wrinkles are the most salient age cue, we investigated whether the left hemiface consequently appears older than the right. Two hundred and sixty participants (F=148; M=112) viewed booklets containing pairs of left-left and right-right chimeric faces of eight models (M=F). For each trial participants were asked to make a two alternative forced choice response indicating which image looked older. Results confirmed a left cheek bias, with participants more likely to select left-left than right-right chimeras. Whilst participant gender did not influence perceptions, model gender predicted cheek selections: responses to female models drive the overall left cheek bias. The left cheek (56.8%) appeared older than the right cheek (43.2%) for female models, whereas there was little difference in perceived age between male models' left (50.8%) and right (49.2%) cheeks. Given that youth influences perceptions of female beauty, these findings complement previous research and offer a potential explanation for why the left side of females’ faces are judged less attractive: the right cheek appears younger.
    Źródło:
    Acta Neuropsychologica; 2019, 17(4); 417-426
    1730-7503
    2084-4298
    Pojawia się w:
    Acta Neuropsychologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    National comparison of methods for determination of radon in water
    Autorzy:
    Mazur, Jadwiga
    Kozak, Krzysztof
    Grządziel, Dominik
    Guguła, Szymon
    Mroczek, Mariusz
    Kozłowska, Beata
    Walencik-Łata, Agata
    Podgórska, Zuzanna
    Wołoszczuk, Katarzyna
    Przylibski, Tadeusz A.
    Kowalska, Agata
    Domin, Elżbieta
    Wysocka, Małgorzata
    Chałupnik, Stanisław
    Chmielewska, Izabela
    Długosz-Lisiecka, Magdalena
    Szajerski, Piotr
    Chau, Nguyen Dinh
    Krakowska, Paulina
    Pliszczyński, Tomasz
    Ośko, Jakub
    Dymecka, Małgorzata
    Mazurek, Daria
    Powiązania:
    https://bibliotekanauki.pl/articles/148272.pdf
    Data publikacji:
    2020
    Wydawca:
    Instytut Chemii i Techniki Jądrowej
    Tematy:
    AlphaGUARD monitor
    interlaboratory comparison
    LSC method
    radon in water
    Z-score value
    Opis:
    The article describes three interlaboratory experiments concerning 222Rn determination in water samples. The first two experiments were carried out with the use of artificial radon waters prepared by the Laboratory of Radiometric Expertise (LER), Institute of Nuclear Physics, Polish Academy of Sciences in Kraków in 2014 and 2018. The third experiment was performed using natural environment waters collected in the vicinity of the former uranium mine in Kowary in 2016. Most of the institutions performing radon in water measurements in Poland were gathered in the Polish Radon Centre Network, and they participated in the experiments. The goal of these exercises was to evaluate different measurement techniques used routinely in Polish laboratories and the laboratories’ proficiency of radon in water measurements. In the experiment performed in 2018, the reference values of 222Rn concentration in water were calculated based on the method developed at LER. The participants’ results appeared to be worse for low radon concentration than for high radon concentrations. The conclusions drawn on that base indicated the weaknesses of the used methods and probably the sampling. The interlaboratory experiments, in term, can help to improve the participants’ skills and reliability of their results.
    Źródło:
    Nukleonika; 2020, 65, 2; 77-81
    0029-5922
    1508-5791
    Pojawia się w:
    Nukleonika
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-35 z 35

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