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Przejdź do strony domowej biblioteki Pedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaPedagogiczna Biblioteka Wojewódzka im. Komisji Edukacji Narodowej w Lublinie
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Wyświetlanie 1-10 z 60
Tytuł:
Quality Standards Systems: Status, Compliance and Adherence in Maritime Institutions in the Philippines
Autorzy:
Magramo, M.
Javier, M.
Lazaro, M.
Tematy:
STCW Implementation
Quality Standards System
Maritime Institutions
Maritime Education and Training (MET)
MET System in the Philippines
MET Facilities
Pokaż więcej
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Powiązania:
https://bibliotekanauki.pl/articles/116003.pdf  Link otwiera się w nowym oknie
Opis:
This survey research aimed to determine the status of and compliance to and adherence to the quality standards system by the maritime schools in the Philippines. Frequency, mean and standard deviations were the descriptive statistics used and t-test, analysis of variance, stepwise multiple regression analysis and Pearson’s r were the inferential statistics used. The participants’ perceived the status of the quality standards system among maritime schools as ‘strong’. The participants’ perceived the compliance with and adherence to the quality standards system among the maritime schools as “very high”. Location of school, enrolment size, faculty size, size of support staff, accreditation, position in school, work experience and educational preparation are significant predictors of the status, compliance with and adherence to the quality standards system in maritime schools. No significant relationships existed between the participants’ perception of the compliance and adherence to quality standards system among maritime schools and personal-related factors.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The influence of the gap diameter on the polymer thread temperature and velocity at the exit of the 3D printer nozzle
Wpływ średnicy szczeliny na temperaturę i prędkość nici polimerowej na wyjściu z dyszy drukarki 3D
Autorzy:
Baeza-Campuzano, Alberto
Morales-Castillo, Javier
Castaño, Víctor M.
Tematy:
3D-printing
gap diameter
effect of temperature
printing velocity
druk 3D
średnica szczeliny
wpływ temperatury
prędkość drukowania
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Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Powiązania:
https://bibliotekanauki.pl/articles/2202615.pdf  Link otwiera się w nowym oknie
Opis:
Using the example of acrylonitrile-butadiene-styrene (ABS) copolymer, the effect of the gap (thread) diameter for five printing velocity at 230°C on the thread temperature and velocity at the nozzle exit was investigated using the ANSYS Fluent simulation program. It was shown that the change of the gap diameter had a significant impact on the tested parameters.
Wpływ średnicy szczeliny na temperaturę i prędkość nici polimerowej na wyjściu z dyszy drukarki 3D Abstrakt: Na przykładzie kopolimeru akrylonitryl-butadien-styren (ABS), za pomocą programu symulacyjnego ANSYS Fluent, zbadano wpływ średnicy szczeliny dla pięciu prędkości drukowania w temperaturze 230°C na temperaturę i prędkość nici na wyjściu z dyszy. Wykazano, że zmiana średnicy szczeliny miała istotny wpływ na badane parametry.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the generalized Fermi-Dirac integral and its derivatives for moderate/large values of the parameters
Autorzy:
Segura, Javier
Gil, Amparo
Temme, Nico M.
Odrzywołek, Andrzej
Opis:
Approximations with Matlab implementations for the relativistic Fermi-Dirac integral and its partial derivatives are given in this paper. As the numerical tests show, the expansions allow to calculate the functions efficiently and with high accuracy for a large range of parameters. Therefore, our algorithms are expected to be a very useful tool, in combination with other methods, for building reliable and efficient software for computing the functions for all the parameters ranges.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Evaluation of the generalized Fermi-Dirac integral and its derivatives for moderate/large values of the parameters : new version announcement
Autorzy:
Odrzywołek, Andrzej
Gil, Amparo
Temme, Nico M.
Segura, Javier
Opis:
A revised version of the Matlab implementations of the expansions for the Fermi-Dirac integral and its derivatives is presented. In the new version, our functions for computing the Kummer functions and are incorporated into the software. The algorithms for computing the Kummer functions are described in [1,2]. In this way, the implementations of the expansions for the Fermi-Dirac integral can be used in earlier Matlab versions and can be easily adapted to GNU Octave. The efficiency of the computations is also greatly improved.
Dostawca treści:
Repozytorium Uniwersytetu Jagiellońskiego
Artykuł
Tytuł:
Generation of H2 on board LNG vessels for consumption in the propulsion system
Autorzy:
Fernández, Ignacio Arias
Gómez, Manuel Romero
Gómez, Javier Romero
López-González, Luis M.
Tematy:
boil-off gas
efficiency
H2 storage
LNG vessel
reforming
Pokaż więcej
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Powiązania:
https://bibliotekanauki.pl/articles/260010.pdf  Link otwiera się w nowym oknie
Opis:
At present, LNG vessels without reliquefaction plants consume the BOG (boil-off gas) in their engines and the excess is burned in the gas combustion unit without recovering any of its energy content. Excess BOG energy could be captured to produce H2, a fuel with high energy density and zero emissions, through the installation of a reforming plant. Such H2 production would, in turn, require on-board storage for its subsequent consumption in the propulsion plant when navigating in areas with stringent anti-pollution regulations, thus reducing CO2 and SOX emissions. This paper presents a review of the different H2 storage systems and the methods of burning it in propulsion engines, to demonstrate the energetic viability thereof on board LNG vessels. Following the analysis, it is identified that a pressurised and cooled H2 storage system is the best suited to an LNG vessel due to its simplicity and the fact that it does not pose a safety hazard. There are a number of methods for consuming the H2 generated in the DF engines that comprise the propulsion plant, but the use of a mixture of 70% CH4-30% H2 is the most suitable as it does not require any modifications to the injection system. Installation of an on-board reforming plant and H2 storage system generates sufficient H2 to allow for almost 3 days’ autonomy with a mixture of 70%CH4-30%H2. This reduces the engine consumption of CH4 by 11.38%, thus demonstrating that the system is not only energy-efficient, but lends greater versatility to the vessel.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
DIGITAL AND MEDIA COMPETENCES: KEY COMPETENCES FOR EFL TEACHERS
Autorzy:
Palacios Hidalgo, Francisco Javier
Gómez Parra, M.ª Elena
Huertas Abril, Cristina A.
Tematy:
ICT
digital competence
media competence
ESL/EFL teachers
teachers’ professional needs
Pokaż więcej
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej w Lublinie. IATEFL Poland Computer Special Interest Group
Powiązania:
https://bibliotekanauki.pl/articles/955791.pdf  Link otwiera się w nowym oknie
Opis:
The usefulness of ICT in language learning is unquestionable nowadays. There are many digital educational resources available for foreign and second language teachers, materials which are progressively acquiring an important role in the teaching-learning process. In order to respond to the increasing presence of such technologies in the classroom, teachers need to acquire digital and media competences, two key elements for lifelong training process. However, these are superficially addressed in teacher education. In this light, both in-training and in-service educators demand more skills and specific training to be able to teach students how to use technologies and, ultimately, help them develop their own digital and media competences. Following an exhaustive bibliographical revision of scientific literature in the field, this theoretical paper seeks to revise the concepts of digital and media competences as well as to reflect on how superficially they are addressed at universities and teacher-training centres. After this, the importance of both competences as key elements for teachers is brought to light, as well as some useful suggestions to help foreign and second language teachers acquire and develop them and, simultaneously, teach them to their students.
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 60

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