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Tytuł:
Wojskowe jednostki naukowo-techniczne w kompleksowej ocenie jednostek naukowych 2013-2016
Military scientific and technical entities in the comprehensive evaluation in 2013-2016
Autorzy:
Seń, A
Szlachta, M.
Powiązania:
https://bibliotekanauki.pl/articles/235649.pdf
Data publikacji:
2018
Wydawca:
Wojskowy Instytut Techniczny Uzbrojenia
Tematy:
nauki o bezpieczeństwie
zarządzanie
instytuty badawcze
uczelnie wojskowe
ocena jednostek naukowych
security sciences
management
military research institutes
military colleges
evaluation of scientific entities
Opis:
W 2017 r. Ministerstwo Nauki i Szkolnictwa Wyższego przeprowadziło kompleksową ocenę jednostek naukowych. Ocena dotyczyła działalności jednostek w latach 2013-2016. Objęto nią 993 podmioty, w tym 14 wojskowych jednostek naukowo-technicznych (6 instytutów badawczych i 8 jednorodnych, podstawowych jednostek organizacyjnych uczelni wojskowych). Porównano wyniki działalności naukowej wszystkich podmiotów według tej samej metodyki w celu poznania stanu polskiej nauki oraz określenia wymaganego poziomu dofinansowania poszczególnych jednostek ze środków budżetu państwa. W procesie oceny brano pod uwagę osiągnięcia naukowe i twórcze, potencjał naukowy jednostek, praktyczne efekty uzyskane z prowadzonej działalności naukowej i rozwojowej oraz pozostałe efekty. W publikacji przedstawiono pozycję wojskowych jednostek naukowo-technicznych na tle innych jednostek podlegających ocenie w ramach poszczególnych kryteriów. Na podstawie uzyskanych wyników wskazane zostały działania niezbędne do podjęcia w celu poprawy dorobku wojskowych jednostek naukowo-technicznych i uzyskania wyższej kategorii naukowej w trakcie kolejnej oceny.
A comprehensive evaluation of scientific entities was made by the Ministry of Science and Higher Education in 2017. The evaluation concerned the activities of entities within 2013÷2016. It included 993 entities consisting of 14 military scientific and technical units (6 research institutes and 8 faculties of military universities). Results of scientific activities of all entities were compared by using the same methodology in order to find out an actual status of the Polish science and to estimate the required level of budget subsidies for particular entities. The process of their evaluation has accounted scientific and creative achievements, scientific capabilities, practical effects of scientific and development activities and other effects. The publication shows the ranking of selected military scientific-technical entities on the breakdown of other entities subjected to evaluation within the frame of specific criteria. Obtained results have been used to indicate necessary actions needed to improvement of achievements of the military scientific-technical entities and obtaining a higher scientific category in the next process of evaluation.
Źródło:
Problemy Techniki Uzbrojenia; 2018, 47, 146; 51-71
1230-3801
Pojawia się w:
Problemy Techniki Uzbrojenia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Technical and organisational aspects of production preparation on the example of door factory
Autorzy:
Rudawska, A.
Seń, A
Semotiuk, L.
Powiązania:
https://bibliotekanauki.pl/articles/102019.pdf
Data publikacji:
2013
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
technical and organizational production preparation
factory
Opis:
The aim of the work is the analysis of the organization of production, and door-producing undertaking to propose technical solutions that could improve production efficiency and reduce costs. On the basis of an analysis of the existing organizational and technical production plant a proposal of changes was presented. These changes depend on replacing a group of machines with one CNC EGURKO automatic line.
Źródło:
Advances in Science and Technology. Research Journal; 2013, 7, 20; 42-46
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Music Playlist Generation using Facial Expression Analysis and Task Extraction
Autorzy:
Sen, A.
Popat, D.
Shah, H.
Kuwor, P.
Johri, E.
Powiązania:
https://bibliotekanauki.pl/articles/908868.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
facial expression analysis
emotion recognition
feature extraction
viola jones face detection
gabor filter
adaboost
k-NN algorithm
task extraction
music classification
playlist generation
Opis:
In day to day stressful environment of IT Industry, there is a truancy for the appropriate relaxation time for all working professionals. To keep a person stress free, various technical or non-technical stress releasing methods are now being adopted. We can categorize the people working on computers as administrators, programmers, etc. each of whom require varied ways in order to ease themselves. The work pressure and the vexation of any kind for a person can be depicted by their emotions. Facial expressions are the key to analyze the current psychology of the person. In this paper, we discuss a user intuitive smart music player. This player will capture the facial expressions of a person working on the computer and identify the current emotion. Intuitively the music will be played for the user to relax them. The music player will take into account the foreground processes which the person is executing on the computer. Since various sort of music is available to boost one's enthusiasm, taking into consideration the tasks executed on the system by the user and the current emotions they carry, an ideal playlist of songs will be created and played for the person. The person can browse the playlist and modify it to make the system more flexible. This music player will thus allow the working professionals to stay relaxed in spite of their workloads.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 2; 1-6
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of operating pressure and stand-off distance on coal comminution by waterjet
Autorzy:
Li, Y.
Galecki, G.
Şen, G. A.
Şen, S.
Powiązania:
https://bibliotekanauki.pl/articles/110840.pdf
Data publikacji:
2017
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
coal
waterjet
comminution
particle size distribution
Opis:
Comminution of coal to ultrafine sizes by high-pressure waterjet coupled with cavitation cell provides a novel method for preparation of coal-water fuels for next generation, near-zero emission electric power generation. To establish the fundamental performance of the waterjet mill, the effects of the operating pressure and stand-off distance were comprehensively investigated using a high ash bituminous coal. The comminution products were evaluated in terms of the particle size, particle size distribution, and surface area change. The experimental results indicated that the waterjet-mediated comminution of coal was strongly affected by all these operating parameters. Higher operating pressure led to finer products, while the efficiency of the waterjet mill in terms of particle size strongly depended on the stand-off distance. This research provides a deeper insight into the high-pressure waterjet for coal comminution and a basis for process parameter optimization.
Źródło:
Physicochemical Problems of Mineral Processing; 2017, 53, 1; 394-401
1643-1049
2084-4735
Pojawia się w:
Physicochemical Problems of Mineral Processing
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of laser diodes and photodetectors on multiple-quantum wells at the hot-metal pyrometry
Autorzy:
Sen'kov, A. G.
Firago, V. A.
Kononenko, V. K.
Christol, P.
Powiązania:
https://bibliotekanauki.pl/articles/153735.pdf
Data publikacji:
2007
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
pyrometry
spectroreflectometry
near-infrared range
photodetector
laser diode
methodical error
pirometria
spektroreflektometria
zakres bliskiej podczerwieni
fotodetektor
dioda laserowa
pomyłka metodyczna
Opis:
In the paper, the method of relative spectroreflectometry at using the infrared photodetectors with a wide diapason of the spectral photosensitivity is suggested. Methodical errors at exponential and power dependencies of the emissivity of an object on the wavelength are analysed. Possible design of a pyrometer for measurements of temperature of hot metals is described and attractiveness of quantum-well laser diodes and superlattice photodetectors based on the GaSb compounds is discussed.
W pracy zaproponowano metodę spektrofotometrii porównawczej z wykorzystaniem fotodetektorów podczerwieni o szerokim zakresie czułości spektralnej. Określono błędy systematyczne związane z wykładniczą i kątową zależnością od długości fali i współczynnika emisyjności obiektów. Przedstawiono jedną z możliwych konstrukcji pirometru do pomiaru rozgrzanych metali. Dyskutuje się również możliwość zastosowania diod laserowych o rozmiarach kwantowych oraz fotodetektorów zbudowanych w oparciu o złącza GaSb.
Źródło:
Pomiary Automatyka Kontrola; 2007, R. 53, nr 9 bis, 9 bis; 597-600
0032-4140
Pojawia się w:
Pomiary Automatyka Kontrola
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Temperature and Pressure Dependence of the Free Volume in Fluoroelastomers from PALS and PVT Experiments
Autorzy:
Dlubek, G.
Sen Gupta, A.
Wawryszczuk, J.
Kilburn, D.
Pionteck, J.
Krause-Rehberg, R.
Goworek, T.
Alam, M. A.
Kaspar, H.
Lochhaas, K. H.
Powiązania:
https://bibliotekanauki.pl/articles/2042202.pdf
Data publikacji:
2005-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.41.+e
78.70.-g
Opis:
Positron lifetime and pressure-volume-temperature experiments were performed as function of T (100-485 K) and P (10$\text{}^{-5}$ Pa-500 MPa) on a fluoroelastomer. From positron annihilation lifetime spectroscopy, analyzed with LT9.0 assuming a dispersion in the e$\text{}^{+}$ (τ$\text{}_{2}$) and o-Ps (τ$\text{}_{3}$) lifetime, the mean, 〈v$\text{}_{h}$〉, and the width (standard deviation), σ$\text{}_{h}$, of the hole size distribution were calculated. The pressure-volume-temperature data were analyzed using the Simha-Somcynsky hole-lattice theory to estimate the specific hole free volume V$\text{}_{f}$. From a comparison of V$\text{}_{f}$ with 〈v$\text{}_{h}$〉 the specific hole number, N'$\text{}_{h}$, is estimated. The data from thermal expansion and pressure experiments show complete agreement when taking into account the compressibility of the occupied volume.
Źródło:
Acta Physica Polonica A; 2005, 107, 4; 685-689
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analytic Approximation to Localised ab initio Pseudopotential and Some Applications
Autorzy:
Sarkar, A.
Sen, D.
Powiązania:
https://bibliotekanauki.pl/articles/1964217.pdf
Data publikacji:
1997-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
63.10.+a
71.10.-w
Opis:
The localised version of the density functional based norm-conserving pseudopotential has already been applied to various metallic solids and aggregate state properties with some success. Applications to the study of liquid phonons and to the surface dynamics are specially discussed in the present paper. An analytic fit to the pseudopotential is obtained and further application to molecular dynamics is indicated.
Źródło:
Acta Physica Polonica A; 1997, 91, 6; 1081-1089
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of H₃BO₃ on the Corrosion Properties of Ni-B Based Electroplating Coatings
Autorzy:
Karabulut, A.
Durmaz, M.
Kilinc, B.
Sen, U.
Sen, S.
Powiązania:
https://bibliotekanauki.pl/articles/1032526.pdf
Data publikacji:
2017-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Pq
Opis:
In this study the effect of H₃BO₃ on the properties of Ni-B coating formed on the AISI 1020 steel surface produced with electroplating process was investigated. Synthesis of the coatings was done using acidic electro plating bath. Coating process was carried out within a standard cell with three electrode system using platinum as auxiliary and Ag/AgCl electrode as a reference electrode onto AISI 1020 steel substrate. Then, heat treatment was applied to coatings at 400°C during a period of 1 h. The coated samples were analyzed by optical microscope, scanning electron microscope, and X-ray diffraction. Micro hardness measurements of the coatings were realized. The study reveals that the Ni-B anti corrosion coating is amorphous in their as-plated condition and upon heat treatment at 400°C for 1 h, Ni-B coatings crystallize and produce nickel borides and nickel in the coatings. The results indicated the presence of Ni₂B, Ni₃B and Ni phases.
Źródło:
Acta Physica Polonica A; 2017, 131, 1; 147-149
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Darboux-Bäcklund Transformation and Positon Type Solution of Coupled Nonlinear Optical Waves
Autorzy:
Sen, D. C.
Chowdhury, A. R.
Powiązania:
https://bibliotekanauki.pl/articles/2014041.pdf
Data publikacji:
2000-07
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
02.30.+g
52.35.Mw
52.35.Sb
Opis:
A Darboux-Bäcklund transformation is used to obtain a positon type solution of the nonlinear equations describing the propagation of coupled nonlinear optical pulses.This form of the positon solution is then compared with that obtained by the special limiting procedure applied to a two-soliton solution. It is observed that though the algebraic form of the two solutions is different yet both of these have singularities and the position of the singularities remains on the similar curve in the (x,t) plane. We also depict the form of these solutions graphically. Finally, it may be added that the method of Darboux-Bäcklund transformation is convenient for generating more than one-positon solution.
Źródło:
Acta Physica Polonica A; 2000, 98, 1-2; 3-10
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effective Pair Interaction from Ab Initio Pseudopotentials - Importance and Applications
Autorzy:
Haldar, S.
Sarkar, A.
Sen, D.
Powiązania:
https://bibliotekanauki.pl/articles/1858123.pdf
Data publikacji:
2000-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
63.10.+a
65.90.+i
Opis:
Computation of reliable effective interionic pair interaction for simple metals has been discussed on the basis of localised ab initio pseudopotential within linear screening approximation. The influence of different commonly used screening functions on the shape of pair potential is examined and the temperature dependence of the interaction is also investigated. Various features of the potential are studied and compared with empirical and available first principle results. Importance of the present study and some related problems are also analysed.
Źródło:
Acta Physica Polonica A; 2000, 97, 4; 651-662
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sol-Gel Derived Lanthanide-Substituted Layered Double Hydroxides $Mg_3//Al_{1-x}Ln_{x}$
Autorzy:
Smalenskaite, A.
Şen, S.
Salak, A.
Ferreira, M.
Beganskiene, A.
Kareiva, A.
Powiązania:
https://bibliotekanauki.pl/articles/1398236.pdf
Data publikacji:
2018-04
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.66.Fd
82.70.Gg
82.33.Ln
71.20.Eh
78.55.Hx
Opis:
Mg/Al/Ln (Ln = Nd, Sm, Eu) layered double hydroxides (LDHs) were synthesized using sol-gel method for the first time to the best our knowledge. The obtained materials were characterized by X-ray diffraction analysis and fluorescence spectroscopy. The phase composition and luminescent properties of these LDHs were investigated and discussed. The Ln³⁺ substitution effects were investigated in the $Mg_3Al_{1-x}Ln_{x}$ LDHs by changing the Ln³⁺ concentration in the metal cation layers up to 10 mol%. It was demonstrated that only $Mg_3Al_{1-x}Eu_{x}$ LDHs showed luminescence properties, however, no any light emission was observed for the $Mg_3Al_{1-x}Nd_{x}$ and $Mg_3Al_{1-x}Sm_{x}$ LDH samples.
Źródło:
Acta Physica Polonica A; 2018, 133, 4; 884-886
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Two-Tier Haddon Matrix Approach to Fault Analysis of Accidents and Cybernetic Search for Relationship to Effect Operational Control: A Case Study at a Large Construction Site
Autorzy:
Mazumdar, A.
Sen, K. N.
Lahiri, B. N.
Powiązania:
https://bibliotekanauki.pl/articles/90001.pdf
Data publikacji:
2007
Wydawca:
Centralny Instytut Ochrony Pracy
Tematy:
hazard
Haddon matrix
fault analysis
accident analysis
cybernetics
Opis:
The Haddon matrix is a potential tool for recognizing hazards in any operating engineering system. This paper presents a case study of operational hazards at a large construction site. The fish bone structure helps to visualize and relate the chain of events, which led to the failure of the system. The two-tier Haddon matrix approach helps to analyze the problem and subsequently prescribes preventive steps. The cybernetic approach has been undertaken to establish the relationship among event variables and to identify the ones with most potential. Those event variables in this case study, based on the cybernetic concepts like control responsiveness and controllability salience, are (a) uncontrolled swing of sheet contributing to energy, (b) slippage of sheet from anchor, (c) restricted longitudinal and transverse swing or rotation about the suspension, (d) guilt or uncertainty of the crane driver, (e) safe working practices and environment.
Źródło:
International Journal of Occupational Safety and Ergonomics; 2007, 13, 1; 49-61
1080-3548
Pojawia się w:
International Journal of Occupational Safety and Ergonomics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Static Local Field Factor and Ground State Properties of Interacting Electron Gas
Autorzy:
Sarkar, A.
Haldar, S.
Roy, D.
Sen, D.
Powiązania:
https://bibliotekanauki.pl/articles/2038378.pdf
Data publikacji:
2004-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.10.-w
71.45.Gm
Opis:
In the most general case, the calculation of the static local field factor G(q) for the unpolarised electron gas requires the knowledge of exchange-correlation energy functionals for both the parallel and antiparallel relative spin orientations of the electron gas system. Accurate density interpolation formulae using the quantum Monte Carlo data of Ceperley-Alder for the correlation energy of electron gas in both the "para" and "ferro" states, respectively, in the given density range are used for the calculation of G( q). Fulfilment of relevant consistency criteria is ensured and the local field factor so obtained renders significant improvement of ab initio pseudopotential calculation of effective interaction of Al. The Levin like interpolant of the correlation energy Ceperley-Alder data has been further used to study the ground state properties of the electron gas. It is also noted that a better understanding of the interacting electron gas properties requires a more accurate spin interpolation formula for the correlation energy than the existing ones.
Źródło:
Acta Physica Polonica A; 2004, 106, 4; 497-514
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological Behaviors of $SiO_2$ Added Polyester Matrix Thermosetting Composites
Autorzy:
Akinci, A.
Ozsoy, M.
Firat, M.
Sen, U.
Powiązania:
https://bibliotekanauki.pl/articles/1291866.pdf
Data publikacji:
2014-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Qk
12.60.Rc
81.40.Pq
Opis:
In this study, the tribological behavior of polyester matrix composites filled with silicon dioxide ($SiO_2$) particles is investigated. The tribological characteristics of pure polyester and 10, 20, 30 and 40 wt% $SiO_2$ filled polyester composites were comparatively evaluated under dry sliding conditions. Wear tests were carried out at room temperature under the loads of 10, 20, and 30 N at the sliding speed of 1 m/s. The wear test results showed that the $SiO_2$ particles could improve the wear resistance. The friction coefficient of the polyester was getting increased from 0.228 to 1.1052 with an increase in $SiO_2$ content depending on applied loads. The results showed that the wear rates of pure polyester and $SiO_2$ filled polyester composites increased with increase in loads. The wear rates of the $SiO_2$ filled polyester composites were significantly affected from the $SiO_2$ content. The wear rate of the polyester changed from 8.0 × $10^{-7}$ $mm^3$/m to 1.72 × $10^{-5}$ $mm^3$/m depending on $SiO_2$ contents and applied loads.
Źródło:
Acta Physica Polonica A; 2014, 125, 2; 560-562
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Degradation of dyes by fungi: an insight into mycoremediation
Autorzy:
Rajhans, G.
Barik, A.
Sen, S.K.
Raut, S.
Powiązania:
https://bibliotekanauki.pl/articles/2096808.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Dyes
mycoremediation
decolorization
fungal enzymes
Opis:
Currently, globalization, urbanization and industrialization have led to several environmental issues. In many industries, particularly in textile industries, the extensive use of synthetic dyes has increased. Dye is an integral element used to impart color to textile materials. Wastes generated during the processing and treatment of the dye contain inorganic and organic compounds that are hazardous, thereby posing a serious threat to the ecosystem. It is therefore important to implement cost-efficient and successful measures against these emissions in order to preserve habitats and natural resources. In this context, biodegradation by fungi or mycoremediation of dyes using potential fungi is a fairly inexpensive and environmental friendly method for decomposing or mineralizing barely or less decaying dye compounds. Fungi play a crucial role in degrading and decolorizing organic dyes by enzymes and processes such as absorption, adsorption and aggregation of effluent colorants. The factors affecting the decolorization and biodegradation of dye compounds through fungal bioremediation, such as pH, temperature, dye concentration, agitation, effects of carbon and nitrogen sources, dye structure, enzymes, electron donor and redox mediators are discussed in this review. The review also includes a summary on the mechanism and kinetics of dye degradation as well as recent advances and future perspectives in mycoremediation of dyes.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 4; 445-455
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
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