Autor: Sharma, S. K. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Some strongly almost summable sequence spaces
Autorzy:: Sharma, S. K.
Esi, A.
Powiązania:: https://bibliotekanauki.pl/articles/357856.pdf
Data publikacji:: 2017
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: Orlicz function
Musielak-Orlicz function
n-normed spaces
I-convergence
paranorm space
funkcja Orlicza
funkcja Musielaka-Orlicza
przestrzeń funkcyjna
przestrzenie n-normalne
Opis:: In the present paper we introduce some strongly almost summable sequence spaces using ideal convergence and Musielak-Orlicz function $\mathcal{M} = (M_{k})$ in n-normed spaces. We examine some topological properties of the resulting sequence spaces.
Źródło:: Journal of Mathematics and Applications; 2017, 40; 171-183
1733-6775
2300-9926
Pojawia się w:: Journal of Mathematics and Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Some seminormed difference sequence spaces defined by a Musielak-Orlicz function over n-normed spaces
Autorzy:: Raj, K.
Sharma, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/357837.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:: paranorm space
difference sequence spaces
Orlicz function
Musielak-Orlicz function
n-normed spaces
przestrzeń paranormalna
ciąg różnic skończonych
funkcja Orlicza
funkcja Musielaka-Orlicza
analiza funkcjonalna
Opis:: In the present paper we introduced some seminormed difference sequence spaces combining lacunary sequences and Musielak-Orlicz function $\mathcal{M} = (M_{k})$ over n-normed spaces and examine some topological properties and inclusion relations between resulting sequence spaces.
Źródło:: Journal of Mathematics and Applications; 2015, 38; 115-131
1733-6775
2300-9926
Pojawia się w:: Journal of Mathematics and Applications
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Exact Phase and its Eikonal Approximation for Class of Reflectionless Index Profiles
Autorzy:: Sharma, S. K.
Ghosh, G.
Powiązania:: https://bibliotekanauki.pl/articles/1963260.pdf
Data publikacji:: 1997-03
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 42.25.Fx
41.20.Jb
Opis:: We examine the problem of transmission of electromagnetic waves in a multiparameter reflectionless dielectric. It is shown that it is possible to obtain an analytic form for the phase of the exact transmission amplitude. In the high frequency limit the exact result is found to lead to the eikonal approximation. Interestingly, the high frequency limit and long-range approximation required for the validity of the eikonal approximation are not independent here.
Źródło:: Acta Physica Polonica A; 1997, 91, 3; 555-561
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Kinetics and thermodynamics of gossypol extraction from defatted cottonseed meal by ethanol
Autorzy:: Devesh, K. S.
Sharma, S. K.
Sambi, S. S.
Powiązania:: https://bibliotekanauki.pl/articles/779714.pdf
Data publikacji:: 2012
Wydawca:: Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:: gossypol
bawełna
nasiona
ekstrakcja
jedzenie
kinetyka
termodynamika
cottonseed
extraction
food
kinetics
thermodynamics
Opis:: Gossypol is polyphenolic aldehyde, a toxic substance naturally present in cotton plant to protect it from insects, pests and diseases. Maximum gossypol is concentrated in the seed. After extraction of oil from the cottonseed, the defatted cottonseed meal which contains both the gossypol and proteinous matter is left behind. A number of attempts have been made using different solvents to extract gossypol from the seeds. However, all these efforts have remained in the realm of academic activity only as none of them could be commercialized. If a pilot plant or commercial scale plant is to be developed then the data on the kinetics and thermodynamics of the extraction process is required. In this study ethanol has been used as the solvent at temperature below 323K for removal of gossypol from the defatted seed. This study finds the effects of parameters viz. temperature, solvent to solid ratio (SR) and extraction time on the gossypol extraction efficiency. The data obtained are used to establish the kinetics and thermodynamics of the extraction process.
Źródło:: Polish Journal of Chemical Technology; 2012, 14, 2; 29-34
1509-8117
1899-4741
Pojawia się w:: Polish Journal of Chemical Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Effect of flux composition on the percentage elongation and tensile strength of welds in submerged arc welding
Efekt składu topnika na wydłużenie procentowe i wytrzymałość na rozciąganie spawów przy spawaniu łukiem krytym
Autorzy:: Singh, B.
Khan, Z. A.
Siddiquee, A. N.
Maheswari, S.
Sharma, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/140322.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ultimate tensile strength
carbon equivalent
basicity index
elements transfer
delta quantity
UTS
wytrzymałość na rozciąganie
równoważnik węglowy
współczynnik zasadowości
transfer pierwiastków
wielkość delta
Opis:: This experimental study reveals the effects of CaF₂, FeMn and NiO additions to the base fluxes on tensile strength and percentage elongation of the weld metal. The aim of this study is to develop suitable flux for mild steel for high tensile strength, impact strength and ductility. Bead on plate welds were made using submerged arc welding process. Mathematical model for percentage elongation and UTS of mild steel welds were made. The elements transfer to the welds have been correlated with the above mechanical performance characteristics. The effect of oxygen content on weld elongation and UTS also has been deduced. This study shows that CaF₂ and NiO are the significant factors for tensile strength while FeMn is not significant for tensile strength. However, for elongation besides CaF₂, the interaction of CaF₂ and FeMn was also found significant. The effects of basicity index of the flux and carbon equivalent of the welds on tensile strength and percentage elongation of the welds have also been evaluated.
W studium eksperymentalnym, przedstawionym w pracy, pokazano wpływ domieszek CaF₂, FeMn i NiO do podstawowego składu topnika na wytrzymałość na rozciąganie i procentowe wydłużenie metalu spawu. Celem studium było opracowanie topnika odpowiedniego dla stali niskowęglowej, który zapewnia wysoką wytrzymałość na rozciąganie, wytrzymałość na udary i plastyczność. Ściegi spawów wykonano metodą spawania łukiem krytym. Opracowano model matematyczny wydłużenia procentowego i wytrzymałości na rozciąganie (UTS) dla spawów ze stali niskowęglowej. Zbadano korelację między wymienionymi charakterystykami mechanicznymi a transferem pierwiastków do spawu. Wyznaczono także wpływ zawartości tlenu na wydłużenie spawu i ostateczną wytrzymałość na rozciąganie. W badaniach doświadczalnych wykazano, że domieszki CaF₂ oraz NiO są istotnymi czynnikami wpływającymi na wytrzymałość na rozciąganie, podczas gdy domieszka FeMn nie ma istotnego wpływu. Oceniono także wpływ współczynnika zasadowości topnika i równoważnika węglowego spawu na wydłużenie procentowe spawu.
Źródło:: Archive of Mechanical Engineering; 2016, LXIII, 3; 337-354
0004-0738
Pojawia się w:: Archive of Mechanical Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Influence of heat sources and relaxation time on temperature distribution in tissues
Autorzy:: Sharma, S.
Sharma, K.
Powiązania:: https://bibliotekanauki.pl/articles/955132.pdf
Data publikacji:: 2014
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: wahania temperatury w tkankach
ciepło biologiczne
równanie Laplace'a
źródło ciepła
Penne's bio-heat equation
relaxation time
heat source
Laplace transform
Hankel transform
Opis:: In the present study, the temperature fluctuations in tissues based on Penne’s bio-heat transfer equation is investigated by applying the Laplace and Hankel transforms. To get the solution in a physical form, a numerical inversion technique has been applied. The temporal and spatial distribution of temperature is investigated with the effect of relaxation time and is presented graphically.
Źródło:: International Journal of Applied Mechanics and Engineering; 2014, 19, 2; 427-433
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Analysis of QKD multifactor authentication in online banking systems
Autorzy:: Sharma, A.
Lenka, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/953056.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: online banking
authentication
multi-factor authentication
quantum cryptography
QKD
security
bankowość internetowa
uwierzytelnianie
uwierzytelnianie wieloczynnikowe
kryptografia kwantowa
bezpieczeństwo
Opis:: In the present scenario internet usage and the online banking sectors are experiencing spectacular growth. The Internet is the fastest growing banking channel today, both in the fields of corporate and retail banking. Banks prefer their customers to use the online banking facility as it reduces their cost, primarily through labour costs. The online banking system addresses several emerging trends: customers’ demand for anytime, anywhere service, product time-to-market imperatives and increasingly complex back-office integration challenges. Online fraud has become major source of revenue for criminals all over the globe. The challenges that oppose online banking are the concerns of security and privacy of information. This has made detecting and preventing these activities a top priority for every major bank. The use of single-factor authentication, such as a user name and the password, has been inadequate for guarding against account fraud and identity theft, in sensitive online banking systems. In this paper we are going to analyze the QKD multifactor authentication in online banking systems.
Źródło:: Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 2; 545-548
0239-7528
Pojawia się w:: Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Study on harmonic analysis of functionally graded plates using FEM
Autorzy:: Sharma, A. K.
Sharma, P.
Chauhan, P. S.
Bhadoria, S. S.
Powiązania:: https://bibliotekanauki.pl/articles/265506.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: metoda elementów skończonych
drgania swobodne
amplituda drgań
finite element method
functionally graded plate
free vibration
Opis:: This paper presents the harmonic and vibration analysis of functionally graded plates using the finite element method. Initially, the plates are assumed isotropic and the material properties of it are assumed to vary continuously through their thickness direction according to a power-law distribution of the volume fractions of the plate constituents. The four noded shell element is used to analyse the functionally graded plates. Four functionally graded plates-Al/Al2O3, Al/ZrO2, Ti–6Al–4V/Aluminium oxide, and SUS304/Si3N4 are considered in the study, and their results are obtained so that the right choice can be made in applications in high temperature environment and in reducing the vibration amplitudes in applications such as aircrafts, rockets, missiles, etc. Numerical results for the natural frequency and harmonic response amplitude are presented. Results are compared and validated with available results in the literature. Effects of boundary conditions, material and damping on natural frequency and harmonic response of the functionally graded plates are also investigated.
Źródło:: International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 941-961
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Linear stability analysis for ferromagnetic fluids in the presence of magnetic field, compressibility, internal heat source and rotation through a porous medium
Autorzy:: Kumar, K.
Singh, V.
Sharma, S.
Powiązania:: https://bibliotekanauki.pl/articles/279562.pdf
Data publikacji:: 2015
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: ferrofluids
rotation
magnetic field
porous medium
heat source
compressibility
Opis:: The effects of magnetic field and heat source strength on thermal convection of a compressible rotating ferromagnetic fluid through a porous medium are investigated theoretically using linear stability theory. A normal mode analysis method is employed to find solutions for the fluid layer confined between parallel planes with free boundaries. The cases of stationary and oscillatory instabilities are discussed. For the stationary state, compressibility, medium porosity and temperature gradient due to heat source have destabilizing effects, whereas rotation and ratio of magnetic permeability delay the onset of convection. The magnetic field and medium permeability have both stabilizing and destabilizing effects under certain conditions. The variations in the stationary critical thermal Rayleigh number and neutral instability curves in (Ra1, x)-plane for various values of physical parameters are shown graphically to depict the stability characteristics. The sufficient conditions for the non-existence of overstability are obtained and the principle of exchange of stabilities holds true in the absence of magnetic field and rotation under certain conditions.
Źródło:: Journal of Theoretical and Applied Mechanics; 2015, 53, 4; 1067-1081
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: Turnover of cell wall components during sink development in seeds of three cotton genotypes
Autorzy:: Sharma, R.K.
Thaker, V.S.
Powiązania:: https://bibliotekanauki.pl/articles/2199019.pdf
Data publikacji:: 2006-06-22
Wydawca:: Instytut Hodowli i Aklimatyzacji Roślin
Tematy:: Cotton seeds
Gossypium Pectic substances
Sink size
Water amount
Xyloglucans
Opis:: Size of the cells in developing seed is one of the major factors that regulate yield potentials. Seed of three cotton genotypes, Gossypium hirsutum. L cv (H-4; H-8) G. herbaceum L. cv (G. Cot-15) exhibits variation in their final seed size (large, middle and smaller) were studied for growth and changes in cell wall components during entire period of seed development. High and low molecular weight xyloglucan contents were extracted with 1M and 4M alkali, respectively. Initially the high and low molecular weight xyloglucan contents remained low and increased when cell size stabilized. Changes in esterified and non-esterified pectic substances were also fractionated from the cell wall of developing seed and theirs role in cell elongation phase is discussed. It was observed that bigger seed has higher xyloglucan contents than that of middle and smaller sized seed. Pectic substances were higher during elongation phase in all genotypes. The role of these polysaccharides in sink size development is discussed.
Źródło:: Plant Breeding and Seed Science; 2006, 53; 9-16
1429-3862
2083-599X
Pojawia się w:: Plant Breeding and Seed Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Fundamental solution in micropolar viscothermoelastic solids with void
Autorzy:: Kumar, R.
Sharma, K. D.
Garg, S. K.
Powiązania:: https://bibliotekanauki.pl/articles/265845.pdf
Data publikacji:: 2015
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: micropolar thermodiffusion
steady oscillations
visothemoelastic
micropolar with void
drgania
termosprężystość
funkcje elementarne
Opis:: In the present article, we construct the fundamental solution to a system of differential equations in micropolar viscothermoelastic solids with voids in case of steady oscillations in terms of elementary functions. Some basic properties of the fundamental solution are also established.
Źródło:: International Journal of Applied Mechanics and Engineering; 2015, 20, 1; 109-125
1734-4492
2353-9003
Pojawia się w:: International Journal of Applied Mechanics and Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Dielectric spectroscopy of grape juice at microwave frequencies
Autorzy:: Vijay, R.
Jain, R.
Sharma, K.S.
Powiązania:: https://bibliotekanauki.pl/articles/24109.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Opis:: The complex permittivity of fresh juice of two cultivars of grapes, Sultania (green grapes) and Black Monukka (black grapes) was measured in terms of the dielectric constant and dielectric loss factor over the frequency range from 1 to 50 GHzand at temperatures ranging from 30 to 60oC, by using the PNA network analyzer model E8364C and open ended coaxial probe 85070E. The Cole-Cole plots and dielectric constant vs. (angular frequency) dielectric loss factor and dielectric constant vs. dielectric loss factor/(angular frequency) regression lines at different temperatures were used in Debye approximation to predict relaxation frequency of molecules for the two cultivars of grapes in the low frequency and high frequency limits, respectively. It was observed that the acidic character of green grapes is responsible for the large amplitude vibrational peaks in dielectric loss factor – frequency curves, in the high frequency region at higher temperatures. On the other hand, excess of sugar in black grapes suppresses the activity of water molecules, thereby suppressing the vibrational peaks at higher frequencies. Different relaxation frequencies found for the two cultivars of grapes suggest that they have different molecular structure.
Źródło:: International Agrophysics; 2015, 29, 2
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Simulation and characterization of 4H-SiC JBS diodes irradiated by hydrogen and carbon ions
Autorzy:: Sharma, R. K.
Hazdra, P
Popelka, S.
Powiązania:: https://bibliotekanauki.pl/articles/397767.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Łódzka. Wydział Mikroelektroniki i Informatyki
Tematy:: 4H-SiC
characterization
JBS diode
PIN diode
simulation
dioda JBS
dioda PIN
symulacje
Opis:: This paper presents the development and application of simulation models for proton and carbon irradiated 4H-SiC junction barrier Schottky (JBS) diodes. Commercial JBS diode chips were irradiated to the identical depth with different doses of hydrogen and carbon ions. The resulting defects were then identified by deep level transient spectroscopy (DLTS). Comprehensive I-V and C-V measurement performed prior to and after ion irradiation was used for calibration of simulation models. Results show that compared to protons, heavier carbon ions introduce more defects with deeper levels in the SiC bandgap and more stable damage. For the first time, the free carrier concentration profile extracted from CV simulations for irradiated JBS diode has been compared with experimental data. The simulation of irradiated JBS diodes exhibit excellent matching with experimental data and can be very useful for the optimization of SiC power devices. Furthermore, it is shown that the developed model can be used for prediction of the effect of ion irradiation on both the static and dynamic characteristic of PiN diode.
Źródło:: International Journal of Microelectronics and Computer Science; 2015, 6, 2; 59-63
2080-8755
2353-9607
Pojawia się w:: International Journal of Microelectronics and Computer Science
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: A New CPW-fed Patch Antenna for UWB Applications
Autorzy:: Sharma, P.
Jha, S. K.
Bhattacharya, P. P.
Powiązania:: https://bibliotekanauki.pl/articles/308292.pdf
Data publikacji:: 2017
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: planar antenna
ultra wideband
wireless communication
Opis:: In this paper, the design and analysis of a compact size coplanar waveguide (CPW)-fed antenna for ultrawideband (UWB) applications is presented. The antenna has a compact size of 20×20×1.1 .5 .mm and provides a good impedance matching over the entire bandwidth of 3.2–14.3 GHz. The characteristics parameters, i.e. return loss, VSWR and radiation pattern, are analyzed using HFSS 11.0 software.
Źródło:: Journal of Telecommunications and Information Technology; 2017, 2; 75-78
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 15.

Tytuł:: Aspergillus niger, a dominant phylloplane coloniser, influences the activity of defense enzymes in Solanum lycopersicum
Autorzy:: Goswami, S.
Paul, P.K.
Sharma, P.D.
Powiązania:: https://bibliotekanauki.pl/articles/2084798.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Aspergillus niger
phylloplane
peroxidase
phenylalanine ammonia lyase
polyphenol oxidase
Solanum lycopersicum
tyrosine ammonia lyase
Opis:: Phylloplane microbes have been studied as strategic tools in management against plant pathogens. Non-pathogenic bacteria and fungi have been applied as crop protectants against various plant diseases. The present study aimed at evaluating the potentiality of Aspergillus niger spores in altering the activity of four key enzymes related to defense in tomato. The experiment was designed such that two groups of 50 tomato plants were considered: group 1 – sprayed with autoclaved distilled water (control) and group 2 – sprayed with A. niger spores. Spraying was carried out under aseptic conditions. The experimental parameters included analysis of the activity of peroxidase (POX), polyphenol oxidase (PPO), phenylalanine ammonia lyase (PAL) and tyrosine ammonia lyase (TAL) as well as expression of POX and PPO isoforms. The results demonstrated an inductive effect of A. niger on the activity of POX, PPO, PAL and TAL. Enhanced expression of POX and PPO isoforms was also observed. The results indicated that A. niger can be considered probiotic for the management of tomato against its phytopathogens.
Źródło:: Journal of Plant Protection Research; 2019, 59, 4; 512-518
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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