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Wyszukujesz frazę "Yadav, H." wg kryterium: Autor

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    Wyświetlanie 1-6 z 6
    Tytuł:
    A control strategy of hybrid solar-wind energy generation system
    Autorzy:
    Sharma, H.
    Pal, N.
    Kumar, P.
    Yadav, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/141311.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    distributed PV/wind power system
    double-input DC-DC converter
    multivariable controller
    voltage regulation
    Opis:
    Synchronization in the energy generated by renewable energy sources is one of the significant issue associated with the converter used in the system module. The presented paper concentrates on the design aspect of a PV and wind power input to a DC-DC converter which can be practically useful in hybrid renewable energy power systems. In this regard, the proposed converter can be utilized to obtain a smooth regulated output voltage from the given input renewable energy power sources. The proposed converter can be efficiently work under critical conditions having very few ripple in current waveform of input or output. A major advantage with this type of converter is the simple circuit with respect to the conventional converters in some critical situations. At the end, the result based on the simulation exercise and various experiments, performance of the converter in different situations is presented so that the efficiency of the designed converter arrangement is accepted.
    Źródło:
    Archives of Electrical Engineering; 2017, 66, 2; 241-251
    1427-4221
    2300-2506
    Pojawia się w:
    Archives of Electrical Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    BIA, DPA, MBTA and DMA as Vapour Phase Corrosion Inhibitors for Mild Steel under different Atmospheric Conditions
    Autorzy:
    Kumar, H.
    Yadav, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/412519.pdf
    Data publikacji:
    2014
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Mild steel
    Atmospheric corrosion
    vapor phase corrosion inhibitors
    Eschke Test
    Opis:
    Mild steel is widely used as main raw material in fabrication of equipment, chief material of construction and as weapons. During its storage and transportation conditions, it comes in contact with aggressive environment which leads to decrease in mechanical strength and loss in useful properties. Four different vapor phase corrosion inhibitors (VPCIs) i.e. Benzaimidazole (BIA), Diphenyl amine (DPA), 2-mercapto benzothiazole (MBTA) and N,N-dimethyl aniline (DMA) were tested under different atmospheric conditions at 40 °C by Weight Loss, Eschke test, Salt Spray, SO2 test and SEM techniques. All the four VPCIs show good corrosion inhibition efficiency i.e. 65-96 %. The results obtained from all the four corrosion experiments were supported by SEM images.
    Źródło:
    International Letters of Chemistry, Physics and Astronomy; 2014, 1; 52-66
    2299-3843
    Pojawia się w:
    International Letters of Chemistry, Physics and Astronomy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Leaching of Al-Based Polygrain Quasicrystalline and Related Crystalline Surfaces
    Autorzy:
    Yadav, T.
    Mishra, S.
    Pandey, S.
    Singh, D.
    Lowe, M.
    Tamura, R.
    Mukhopadhyay, N.
    Srivastava, O.
    McGrath, R.
    Sharma, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1373698.pdf
    Data publikacji:
    2014-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.44.Br
    81.16.Hc
    61.66.Dk
    68.37.Hk
    Opis:
    In the present investigation, we have studied leaching on polygrain Al-based quasicrystalline $(i-Al_{63}Cu_{25}Fe_{12})$ as well as crystalline (B2 phase; $Al_{55}Cu_{30}Fe_{15})$ alloy surfaces using a 10 mole NaOH solution. The surface was leached at varying times from 30 min to 8 h and subsequently characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive X-ray analysis. Leaching of the samples for 30 min generated a homogeneous layer. However further leaching for 1-8 h yielded nano-size particles on the surface. Spherical microstructure has been observed on the Al-Cu-Fe crystalline surface whereas on the quasicrystalline surface a petal-like microstructure appeared. The implications of the evolution of different microstructures in the context of structure, stability and activity are discussed. The results are compared with the microstructure of leached polygrained samples containing a mixture of different surface orientations.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 2; 629-632
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effects of viscosity on the structure of shock waves in a non-ideal gas
    Autorzy:
    Anand, R.
    Yadav, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/1075490.pdf
    Data publikacji:
    2016-01
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    52.35.Tc
    47.55.Kf
    47.40.-x
    Opis:
    This work presents the structure of viscous shock front in a non-ideal gas. The analytical expressions for the particle velocity, temperature, pressure and change-in-entropy within the shock transition region are derived taking into consideration the Landau and Lifshitz equation of state for non-ideal gas. The effects on the structure of shock front due to the variations of the coefficient of viscosity, Mach number, adiabatic exponent and parameter of non-ideality of the gas are investigated. The model developed in the paper is valid only for small values of Mach number M i.e., M<2.5.
    Źródło:
    Acta Physica Polonica A; 2016, 129, 1; 28-34
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Structure of the (100) Surface of Ag-In-Gd 1/1 Approximant
    Autorzy:
    Hars, S.
    Sharma, H.
    Smerdon, J.
    Yadav, T.
    Tamura, R.
    Shimoda, M.
    McGrath, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/1203006.pdf
    Data publikacji:
    2014-08
    Wydawca:
    Polska Akademia Nauk. Instytut Fizyki PAN
    Tematy:
    61.44.Br
    68.35.Bs
    68.37.Ef
    71.23.Ft
    Opis:
    Scanning tunneling microscopy is employed to characterise the structure and morphology of the (100) surface of the Ag-In-Gd 1/1 approximant. The surface prepared by the usual method of sputter-annealing produces step-terrace structure. Observed step heights are consistent with the lattice constant of the bulk. Scanning tunneling microscopy on terraces reveals cluster-like protrusions arranged with a square unit cell as expected from the bulk. It has not been possible to assign the terraces to the specific bulk planes because of lack of atomic resolution on terraces.
    Źródło:
    Acta Physica Polonica A; 2014, 126, 2; 479-481
    0587-4246
    1898-794X
    Pojawia się w:
    Acta Physica Polonica A
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tuning of suitable solar spectrum onto photocatalytic materials of the matched band gap using optical engineering
    Autorzy:
    Ranjan, R
    Ghosh, A
    Nirala, A K
    Yadav, H L
    Powiązania:
    https://bibliotekanauki.pl/articles/174130.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    photocatalytic materials
    holographic concentrator
    diffraction efficiency
    solar spectrum
    Opis:
    In this report, we have carried out work on the concept of optical engineering for tuning solar spectrum onto photocatalytic materials of the matched band gap using a holographic concentrator. Processing parameters of holographic concentrators have been designed suitably to have a control over the desired wavelength range for photocatalytic materials of the matched band gap.
    Źródło:
    Optica Applicata; 2015, 45, 2; 237-247
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-6 z 6

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