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Tytuł:
Some properties of plane curves
Autorzy:
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/1336866.pdf
Data publikacji:
1959
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Annales Polonici Mathematici; 1959, 6, 3; 245-252
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On Newtons method of approximation
Autorzy:
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/1336887.pdf
Data publikacji:
1959
Wydawca:
Polska Akademia Nauk. Instytut Matematyczny PAN
Źródło:
Annales Polonici Mathematici; 1959, 6, 3; 295-300
0066-2216
Pojawia się w:
Annales Polonici Mathematici
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation of torsional surface waves in a nonhomogeneous half-space with circular irregularity in free surface
Autorzy:
Sethi, M.
Sharma, A. K.
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/266151.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
propagacja fal
dyspersja
prędkość fali
non-homogeneous media
torsional waves
rigidity
irregularity
Opis:
The present paper studies the effect of circular regularity on propagation of torsional surface waves in an elastic non-homogeneous half-space. Both rigidity and density of the half-space are assumed to vary inversely linearly with depth. Separation of variable method has been used to get the analytical solutions for the dispersion equation of the torsional surface waves. Also, the effects of non-homogeneity and irregularity on the phase velocity of torsional surface waves have shown graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 4; 929-939
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed Situation Awareness in pilotage operations: implications and challenges
Autorzy:
Sharma, A.
Nazir, S.
Powiązania:
https://bibliotekanauki.pl/articles/117589.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
Situation Awareness (SA)
pilotage operation
Distributed Situation Awareness (DSA)
European Maritime Safety Agency (EMSA)
piloting vessels
Automatic Identification System (AIS)
safety at sea
captain-pilot interaction
Opis:
Pilotage is considered as the most critical leg of navigation and a complex operation in maritime domain. In this paper, we argue that Distributed Situation Awareness (DSA) is an important construct in pilotage as the information required to carry out operations is distributed between agents and artefacts. We identify the central themes from the theory of DSA which are useful in describing modern day complex socio-technical systems. Further, based on the central themes, we propose guidelines for evaluating bridge teams involved in pilotage operations.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2017, 11, 2; 289-293
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Propagation of SH waves in an regular non homogeneous monoclinic crustal layer lying over a non-homogeneous semi-infinite medium
Autorzy:
Sethi, M.
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/265788.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
równania różniczkowe
prędkość fali sprężystej
sejsmologia
SH waves
monoclinic
non homogeneity
differential equations
Opis:
The present paper discusses the dispersion equation for SH waves in a non-homogeneous monoclinic layer over a semi infinite isotropic medium. The wave velocity equation has been obtained. In the isotropic case, when non-homogeneity is absent, the dispersion equation reduces to the standard SH wave equation. The dispersion curves are depicted by means of graphs for different values of non-homogeneity parameters for the layer and semi-infinite medium.
Źródło:
International Journal of Applied Mechanics and Engineering; 2016, 21, 2; 447-459
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reflections on Walsh equiconvergence and equisummability
Refleksje nad równo-zbieżnością i równo-sumowalnością w sensie Walsh’a
Autorzy:
Jakimowski, A
Sharma, A
Powiązania:
https://bibliotekanauki.pl/articles/44919163.pdf
Data publikacji:
1996
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Opis:
We present here a brief survey of some recent results on Walsh equiconvergence and its extension to equisummability by R. Brück. We also show how the results of Brück on equisummability can be further extended for a general class of linear operators on functions in \(A_R \). A simple case of (0,2) interpolation is given as an example.
W tej pracy podajemy krótki przegląd najnowszych wyników dotyczących równo-zbieżności w sensie Walsh'a i ich rozszerzenia do równo-sumowalności Brück’a. Pokazujemy również jak wyniki Brück’a dotyczące równo-sumowalności można również rozszerzyć do ogólnej klasy operatorów liniowych na funkcjach z \( A_R \). Prosty przypadek (0,2) interpolacji jest podany jako przykład.
Źródło:
Acta Universitatis Lodziensis. Folia Mathematica; 1996, 8; 9-18
2450-7652
Pojawia się w:
Acta Universitatis Lodziensis. Folia Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Mathematical modeling of torsional surface wave propagation in a non-homogeneous transverse isotropic elastic solid semi-infinite medium under a layer
Autorzy:
Sethi, M.
Sharma, A.
Vasishth, A.
Powiązania:
https://bibliotekanauki.pl/articles/265089.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
non-homogeneous media
torsional surface waves
rigidity
fala powierzchniowa
propagacja fal
modelowanie matematyczne
Opis:
The present paper deals with the mathematical modeling of the propagation of torsional surface waves in a non-homogeneous transverse isotropic elastic half-space under a rigid layer. Both rigidities and density of the half-space are assumed to vary inversely linearly with depth. Separation of variable method has been used to get the analytical solutions for the dispersion equation of the torsional surface waves. Also, the effects of nonhomogeneities on the phase velocity of torsional surface waves have been shown graphically. Also, dispersion equations have been derived for some particular cases, which are in complete agreement with some classical results.
Źródło:
International Journal of Applied Mechanics and Engineering; 2017, 22, 2; 415-426
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An empirical study on the influences of management’s attitudes toward employees with disabilities in the hospitality sector
Analiza empiryczna o wpływach postępowania zarządu wobec pracowników niepełnosprawnych w sektorze hotelarsko-gastronomicznym
Autorzy:
Sharma, A.
Zsarnoczky, M.
Dunay, A.
Powiązania:
https://bibliotekanauki.pl/articles/405702.pdf
Data publikacji:
2018
Wydawca:
Politechnika Częstochowska
Tematy:
attitudes
disability
employees with disabilities
labour market
management
postawy
niepełnosprawność
pracownicy niepełnosprawni
rynek pracy
zarządzanie
Opis:
Internationally, the participation of people with disabilities (irrespective of the type and severity of disability) in the labour market is on the rise. Within the Hungarian context, research on employment of people with disabilities is limited. The objective of this study was to ascertain the attitudes of employers towards employees with disabilities in the hospitality industry. The sample consisted of 174 participants from the city of Budapest, Hungary and quantitative methods were used to analyse the data. Factor analysis was used to evaluate the factorial structure for this study that yielded six meaningful factors, and ANOVA, Sample t- test and Independent t-test were used to examine the relationship between attitudes of personnel with business and employers’ demographics. This study yielded important results regarding the attitudes of employers toward the employees with disabilities in Hungary. One of the major findings of this study was that the employers displayed neutral responses toward employees with disabilities at the place of work. Managerial implications, limitations and recommendations for future studies are further discussed.
Na arenie międzynarodowej wzrasta udział osób niepełnosprawnych (niezależnie od rodzaju i stopnia niepełnosprawności) na rynku pracy. W kontekście węgierskim, badania dotyczące zatrudnienia osób niepełnosprawnych są ograniczone. Celem tej pracy było zbadanie postaw pracodawców wobec pracowników niepełnosprawnych w branży hotelarsko-gastronomicznej. Próba składała się z 174 uczestników z Budapesztu na Węgrzech, a do analizy danych wykorzystano metody ilościowe. Analizę czynnikową wykorzystano do oceny struktury czynnikowej dla tego badania, która dostarczyła sześciu znaczących czynników, a ANOVA, próbny test t-Studenta i niezależny t-test posłużyły do zbadania zależności między postawami personelu a biznesem i demografią pracodawców. Badanie to przyniosło ważne wyniki dotyczące postaw pracodawców wobec pracowników niepełnosprawnych na Węgrzech. Jednym z głównych wyników tego badania było to, że pracodawcy wykazywali neutralną reakcję na pracowników niepełnosprawnych w miejscu pracy. Poniżej omówiono implikacje dotyczące zarządzania, ograniczenia i zalecenia dotyczące przyszłych badań.
Źródło:
Polish Journal of Management Studies; 2018, 18, 2; 311-323
2081-7452
Pojawia się w:
Polish Journal of Management Studies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laminar mixed convection flow from a vertical surface with induced magnetic field and convective boundary
Autorzy:
Chaudhary, K.
Sharma, A.
Jha, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/264352.pdf
Data publikacji:
2018
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
promieniowanie cieplne
absorpcja promieniowania
pole magnetyczne
thermal radiation
radiation absorption
convective boundary
induced magnetic field
Opis:
The objective of this investigation is to study the influence of thermal radiation and radiation absorption parameter on a mixed convection flow over a continuously moving porous vertical plate under the action of transverse applied magnetic field taking into account the induced magnetic field with convective boundary. Under certain assumptions, the solutions for the velocity field, temperature distribution and induced magnetic field are obtained. The influences of various parameters on the velocity, temperature fields and on induced magnetic fields are studied graphically. It is also found that the dimensionless Prandtl number, Grashof number, Schmidt number and magnetic parameter have an appreciable influence on the independent variables.
Źródło:
International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 307-326
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of soret effect on mhd mixed convection flow of visco-elastic fluid past a vertical surface with hall effect
Autorzy:
Jha, A. K.
Choudhary, K.
Sharma, A.
Powiązania:
https://bibliotekanauki.pl/articles/955306.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
dyfuzja termiczna
magnetohydrodynamika
źródło ciepła
thermal diffusion
Hall parameter
MHD
elastic parameters
Schmidt number
heat source
Opis:
The present paper deals with the unsteady motion of an MHD free convection flow of an incompressible non- Newtonian viscoelastic fluid past an infinite vertical plate in the presence of a heat source and Soret effect. A parametric study illustrating the influence of various parameters on the temperature, velocity as well as on the skin-friction and rate of heat transfer is conducted. The results of the effect of the magnetic field, the parameter describing the non-Newtonian behavior, and the velocity of suction and injection on both the velocity and temperature distributions are examined and shown graphically.
Źródło:
International Journal of Applied Mechanics and Engineering; 2014, 19, 1; 79-95
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed situation awareness in a demanding maritime operation: a case study of the subsea segment
Autorzy:
Norstein, E.
Sharma, A.
Jungefeldt, S.
Nazir, S.
Powiązania:
https://bibliotekanauki.pl/articles/117317.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
offshore wind farms
situation awareness
subsea segment
maritime operation
Hierarchical Task Analysis (HTA)
Distributed Situation Awareness (DSA)
Critical Decision Method (CDM)
Remotely Operated Vessel (ROV)
Opis:
Maritime subsea operations have increased significantly in size and complexity during the last decades as a result of the advances in the offshore oil industry. Despite the fact that subsea operations can involve hundreds of personnel, working together with complex technology, limited research can be found regarding the operations in the available literature. This study aims to analyze a routine subsea operation using the Distributed Situation Awareness (DSA) framework and understand how the operators on board maintain their DSA in routine operations through a case study. In order to understand how the operation unfold in complex sociotechnical systems and how situational awareness (SA) is distributed across agents and artefacts, the theoretical framework of DSA can be useful as the focus is on the interactions at a systemic level. To achieve the research objectives, a combination of qualitative methods was utilized to illustrate DSA on board a subsea vessel. Initially an observation was conducted during a live subsea survey operation to capture the interaction between personnel and instruments. Furthermore, all observed personnel were subjected to retrospective interviews to elicit further knowledge of the operation. Finally, the data was analyzed according to the propositional network approach and Hierarchical Task Analysis (HTA). The result of this study portrays the SA of a subsea survey operation as propositional networks for the main phases identified in the HTA. The main findings of the study show a significantly difference in DSA among the Bridge personnel and personnel located in the Online Control Room (ONCR). Furthermore, it was found that the dynamic of the system allowed personnel to have different level of DSA without jeopardizing the overall operation. Finally, the summary of the findings provides a basic understanding of how a routine subsea survey operation unfolds.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 4; 811-822
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
24-epibrassinolide restores the synthesis of proteins and amino acids in Brassica juncea L. leaves under imidacloprid stress
Autorzy:
Sharma, A.
Kumar, V.
Kumar Thukral, A.
Bhardwaj, R.
Powiązania:
https://bibliotekanauki.pl/articles/2049.pdf
Data publikacji:
2017
Wydawca:
Instytut Ogrodnictwa
Źródło:
Journal of Horticultural Research; 2017, 25, 2
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectral fingerprinting revealed modulation of plant secondary metabolites in providing abiotic stress tolerance to invasive alien plants Lantana camara (L.), Parthenium hysterophorous (L.), Ricinus communis (L.), and Ageratum conyzoides (L.) (plant metabolites in stress tolerance to invasive plants)
Autorzy:
Sharma, A.D.
Kaur, J.
Chand, T.S.P.
Powiązania:
https://bibliotekanauki.pl/articles/2096781.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chemical fingerprinting
invasiveness
lipid peroxidation
secondary metabolites
Opis:
Invasive alien species are non-native plant species that displace native species and pose adverse effects to environment, ecosystem, economy, and human health by diminishing the growth of native plants and by exhibiting higher stress tolerance. In our present study, four invasive alien species, namely Lantana camara, Parthenium hysterophorous, Ricinus communis, and Ageratum conyzoides, were studied from different locations. Plants growing under natural environmental conditions were sampled at random in the vicinity of Jalandhar. To gain insights into the biochemical basis of invasiveness of these plants, the samples were subjected to chemical fingerprinting by using UV-Vis, fluorescent, and Fourier transform-infrared (FT-IR) techniques under natural abiotic stress conditions (moderate and hot conditions). Indices of oxidative stress, such as malondialdehyde (MDA), were also studied. MDA levels were enhanced under hot conditions. Elevated peaks (major and minor) were observed in UV fingerprinting during adverse abiotic conditions. Fluorescent spectroscopy also validated the enhanced levels of secondary metabolites. FT-IR spectroscopy confirmed the presence of alkaloids and phenolics during stress conditions. Peaks were identified as rutin, vanillic acid, ascorbic acid, and glutathione reduced. The obtained results showed that under stressful conditions, the studied plants may produce an increased level of metabolites that might play a role in minimizing the oxidative stress faced by these plants. It was concluded that the studied plants, namely P. hysterophorus, L. camara, R. communis, and A. conyzoides, have the potential to cope with abiotic stress such as high temperature, which could be the reason for their invasiveness and vast adaptability.
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2021, 102, 3; 307-319
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Presence of intracellular viruses in human Cryptosporidium isolates
Autorzy:
Sharma, P.
Khurana, S.
Sharma, A.
Sehgal, R.
Malla, N.
Powiązania:
https://bibliotekanauki.pl/articles/5602.pdf
Data publikacji:
2016
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
Cryptosporidium is a major cause of diarrheal illness mainly in children and immunocompromised adults. Disease severity ranges from asymptomatic or self-limited gastroenteritis to acute or chronic diarrhoea which may be associated with systemic features. Intracellular viruses that reside in many parasites have been incriminated in pathogenesis of diseases like trichomoniasis, leishmaniasis etc. Thus we attempted to detect and quantitate the intracellular viruses in Cryptosporidium isolates and sought to seek a relationship if any, with clinical features. Cryptosporidia in stool samples from immunocompromised patients and children were identified by microscopy and species differentiated by PCR-RFLP of 18s rRNA; further subgenotyped by sequencing of GP60 region. Copy number of dsRNA virus and 18srRNA was calculated in 56 Cryptosporidium isolates (39 C. hominis and 17 C. parvum). Viral copy number per oocyst was calculated as ratio of dsRNA virus copy number to 18s rRNA copy number. Viruses were detected in all the isolates. Mean CSpV/RNA ratio was 0.17±0.4 for C. hominis isolates compared with 0.12±0.11 for C. parvum isolates, however this difference was not statistically significant. Similarly no association of diarrhoea, vomiting, cough and fever was found with either CSpV copy number or with CSpV/rRNA ratio.
Źródło:
Annals of Parasitology; 2016, 62, 2
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Synthesis and optical characteristics of silver nanoparticles on different substrates
Autorzy:
Budhiraja, N.
Sharma, A.
Dahiya, S.
Parmar, R.
Vidyadharan, V.
Powiązania:
https://bibliotekanauki.pl/articles/411878.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Nanoparticle
Crystallography
Topography
XRD
SEM
UV-VIS
Opis:
Silver nanoparticles have been deposited on glass and polyethylene substrate by Chemical Bath Deposition (CBD) technique and Chemical rolling method. A comparative study has shown that Chemical bath technique is superior compared to rolling technique for uniform deposition of silver nanoparticles on glass substrate. Crystallography investigation of these materials is done by X-ray diffraction (XRD) which reveals that average grain size is in nano region. Scanning Electron Microscope (SEM) is used for topography study of these prepared nanostructures. Optical properties of the synthesized materials are studied by UV-VIS in detail to check their potential for next era industrial revolution.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 14; 80-88
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
First report of the earthworm Pontoscolex corethrurus (Müller, 1857) from Punjab, India
Autorzy:
Singh, S.
Singh, J.
Sharma, A.
Pal Vig, A.
Shakoor, A.
Powiązania:
https://bibliotekanauki.pl/articles/11913.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Źródło:
International Letters of Natural Sciences; 2018, 68
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Study of Stannous-Cerium Oxide Nanocomposites as Nanofilm, Nanodot and Nanorod
Autorzy:
Budhiraja, N
Sharma, A.
Kumar, S.
Kaur, A.
Unikrishnan, N. V.
Powiązania:
https://bibliotekanauki.pl/articles/411664.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
nanofilms
Nanowires
nanoparticles
Crystallography
Topography
Opis:
In the present paper, main emphasis is given to synthesize the Stannous-Cerium oxide nanocomposites in nanofilms, nanodots and nanorods by Chemical bath method, Chemical drop method and Chemical rolling Method. These nanocomposite materials are synthesized on a glass substrate at 100 °C temperature. Crystallography investigation of these materials is done by X-ray diffraction (XRD) which reveals that average grain size is 58.9 nm and 62.3 nm for nanofilms and nanodots on glass substrate respectively whereas XRD diffraction for nanorod on glass substrate reveals that material is amorphous in nature.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 14; 69-79
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of sustainable nutrient management practices based on land degradation and rainfall effects on soybean yield and organic carbon and available N content in rainfed vertisols
Autorzy:
Sharma, R.A.
Raghu, J.S.
Powiązania:
https://bibliotekanauki.pl/articles/9195901.pdf
Data publikacji:
2003
Wydawca:
Uniwersytet Przyrodniczy w Lublinie. Wydawnictwo Uniwersytetu Przyrodniczego w Lublinie
Tematy:
sustainable practice
nutrient management
land degradation
rainfall effect
soybean
yield
organic carbon
nitrogen content
phosphorus
soil
Vertisol
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura; 2003, 58; 205-221
0365-1118
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio E. Agricultura
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Harvey, M., 2015, Drinking Water. A Socio-Economic Analysis of Historical and Societal Variations, Routledge, London and New York, ss. 178. Autorzy opracowań: M. Harvey oraz A. Evans, A. Sharma, D. Figueroa, W. D.H. Li.
Autorzy:
Stemplowski, Ryszard
Powiązania:
https://bibliotekanauki.pl/articles/420825.pdf
Data publikacji:
2015
Wydawca:
Akademia Ignatianum w Krakowie
Źródło:
Horyzonty Polityki; 2015, 6, 16; 191-195
2082-5897
Pojawia się w:
Horyzonty Polityki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of a functional fermented peanut-based cheese analog using probiotic bacteria
Autorzy:
Sharma, P.
Sharma, D.
Amin, A.
Powiązania:
https://bibliotekanauki.pl/articles/80259.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cheese
analogue
proteolysis
cell viability
peanut
probiotic microorganism
probiotic bacteria
Lactobacillus rhamnosus
fermentation
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2018, 99, 4
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Interface of Competition law and blockchain Technology: a global Perspective
Autorzy:
Sharma, Deepankar
Sharma, Vijaylaxmi
Yadav, Amit
Kewaliya, Vini
Powiązania:
https://bibliotekanauki.pl/articles/2082795.pdf
Data publikacji:
2022-03-15
Wydawca:
Akademia Leona Koźmińskiego w Warszawie
Tematy:
law
enforcement
cross border
blockchain
competition law
technology
Opis:
The rule of law does not govern all human interactions. There are times when the state bypasses legal constraints, as documented by the World Justice Project. Other times, jurisdictions may be mutually unfriendly and refuse to enforce foreign laws. Blockchains create trust between contracting parties at the individual level, enabling them to transact freely and increase consumer welfare. Blockchains can only supple-ment antitrust if the legal constraints do not impede their development. The law should thus support the decentralization of blockchains so that blockchain-based mechanisms may take over (even if imperfectly) where the law does not apply. With that in mind, we justify the attractiveness of that approach by showing that blockchain causes an increase in the number of transactions by creating trust (Part 1), and that it may overall increase the decentralization of economic transactions (Part 2). The law should take into account where it applies (Part 3). We conclude afterward (Part 4).
Źródło:
Krytyka Prawa. Niezależne Studia nad Prawem; 2022, 14, 1; 214-225
2080-1084
2450-7938
Pojawia się w:
Krytyka Prawa. Niezależne Studia nad Prawem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mathematical modeling of magneto pulsatile blood flow through a porous medium with a heat source
Autorzy:
Sharma, B. K.
Sharma, M.
Gaur, R. K.
Mishra, A.
Powiązania:
https://bibliotekanauki.pl/articles/266184.pdf
Data publikacji:
2015
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
heat source
blood flow
porous medium
MHD
źródło ciepła
przepływ krwi
materiały porowate
magnetohydrodynamika
Opis:
In the present study a mathematical model for the hydro-magnetic non-Newtonian blood flow in the non-Darcy porous medium with a heat source and Joule effect is proposed. A uniform magnetic field acta perpendicular to the porous surface. The governing non-linear partial differential equations have been solved numerically by applying the explicit finite difference Method (FDM). The effects of various parameters such as the Reynolds number, hydro-magnetic parameter, Forchheimer parameter, Darcian parameter, Prandtl number, Eckert number, heat source parameter, Schmidt number on the velocity, temperature and concentration have been examined with the help of graphs. The present study finds its applications in surgical operations, industrial material processing and various heat transfer operations.
Źródło:
International Journal of Applied Mechanics and Engineering; 2015, 20, 2; 385-396
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Waterlogging tolerance: A review on regulative morpho-physiological homeostasis of crop plants
Autorzy:
Sharma, Shubhangani
Sharma, Jyotshana
Soni, Vineet
Kalaji, Hazem M.
Elsheery, Nabil I.
Powiązania:
https://bibliotekanauki.pl/articles/1844317.pdf
Data publikacji:
2021
Wydawca:
Instytut Technologiczno-Przyrodniczy
Tematy:
antioxidants
cellular metabolites
climate change
photosynthesis
waterlogging
Opis:
The natural environment is being drastically affected by climate change. Under these severe environmental conditions, the growth and productivity of agricultural crops have reduced. Due to unpredictable rainfall, crops growing in the field are often exposed to waterlogging. This leads to significant crop damage and production losses. In this review paper, the morphological and physiological adaptations such as development of aerenchyma, adventitious roots, radial root oxygen loss barrier, and changes in chlorophyll fluorescence parameters of crops under waterlogging are discussed. This will help to understand the effects of waterlogging on various crops and their adaptation that promotes crop growth and productivity. To meet the food requirements of a growing population, the development of waterlogging tolerant crops by screening and plant breeding methods is necessary for plant breeders. Better knowledge of physiological mechanisms in response to waterlogging will facilitate the development of techniques and methods to improve tolerance in crops.
Źródło:
Journal of Water and Land Development; 2021, 49; 16-28
1429-7426
2083-4535
Pojawia się w:
Journal of Water and Land Development
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of MHD on unsteady oscillatory Couette flow through porous media
Autorzy:
Sharma, Bhupendra K.
Sharma, Pawan Kumar
Cauhan, Sudhir Kumar
Powiązania:
https://bibliotekanauki.pl/articles/2174184.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
magnetohydrodynamika
materiały porowate
przepływ Couette'a
MHD
porous media
free convection
Couette flow
Opis:
This paper describes the effects of a magnetic field on unsteady free convection oscillatory systems. When temperature and species concentration fluctuate with time around a non-zero constant, "Couette flow" across a porous medium occurs. The system of non-linear ODEs that governs the flow is solved analytically using the perturbation approach because the amplitude of fluctuations is very tiny. Mean flow and transient velocity, transient concentration, transient temperature, heat transfer, mean skin friction and phase and amplitude of skin friction. All have approximate solutions. The influence of different parameters on flow characteristics has been specified and discussed.
Źródło:
International Journal of Applied Mechanics and Engineering; 2022, 27, 1; 188--202
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Validating a destructive measurement system using Gauge R&R — a case study
Autorzy:
Sharma, Mithun
Sahni, Sanjeev P.
Sharma, Shilpi
Powiązania:
https://bibliotekanauki.pl/articles/125507.pdf
Data publikacji:
2019
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
Six Sigma
destructive testing
measurement system analysis
Gauge R&R
crossed Gauge R&R
test niszczący
analiza systemu pomiarowego
Gage R&R
Opis:
The research study aims to evaluate the precision of the measurement system using Gauge R&R. An experimental research design adopting a positivist empirical approach with deductive strategy was followed to assess the effectiveness of Crossed Gauge R&R technique for validating a measurement system using destructive testing. Crossed Gauge R&R technique in Minitab was found to be highly effective in quantifying different components of measurement variation relative to process variation. Clue generation from the Crossed Gauge R&R study combined with manufacturing and measurement process know-how helped in identifying and eliminating the root causes for measurement variation. Overall Crossed Gauge R&R proved successful in validating the burst strength test equipment. However, it should be noted that manufacturing and test equipment played an equally important part in developing and executing the gauge R&R study and accurately analysing the results. So, Crossed Gauge R&R should be used as an aid rather than the solution for measurement system validation.
Źródło:
Engineering Management in Production and Services; 2019, 11, 4; 34-42
2543-6597
2543-912X
Pojawia się w:
Engineering Management in Production and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Conservation of the endangered medicinal plant Picrorhiza kurroa through in vitro multiple shoot regeneration
Autorzy:
Chaudhary, V.
Singh, S.
Sharma, R.
Singh, A.
Sharma, N.
Powiązania:
https://bibliotekanauki.pl/articles/80933.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
medicinal plant
Picrorhiza kurroa
endangered plant
shoot regeneration
micropropagation
conservation
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 3
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A systematic review of the characteristics, phytonutritive, and therapeutic potential of the date palm fruit (Phoenix dactylifera)
Autorzy:
Sharma, G.
Sharma, V.
Mishra, T.
Powiązania:
https://bibliotekanauki.pl/articles/80323.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
date palm
Phoenix dactylifera
therapeutic potential
phytochemical composition
bioactive compound
dietary fibre
antioxidant
nutritional value
Źródło:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology; 2019, 100, 2
0860-7796
Pojawia się w:
BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Lipid peroxidation and cell cycle signaling : 4-hydroxynonenal, a key molecule in stress mediated signaling.
Autorzy:
Yang, Yusong
Sharma, Rajendra
Sharma, Abha
Awasthi, Sanjay
Awasthi, Yogesh
Powiązania:
https://bibliotekanauki.pl/articles/1043608.pdf
Data publikacji:
2003
Wydawca:
Polskie Towarzystwo Biochemiczne
Tematy:
glutathione S-transferase
RLIP76
4-hydroxynonenal
RalBP1
cell cycle signaling
apoptosis
Opis:
Role of lipid peroxidation products, particularly 4-hydroxynonenal (4-HNE) in cell cycle signaling is becoming increasingly clear. In this article, recent studies suggesting an important role of 4-HNE in stress mediated signaling for apoptosis are critically evaluated. Evidence demonstrating the modulation of UV, oxidative stress, and chemical stress mediated apoptosis by blocking lipid peroxidation by the α-class glutathione S-transferases (GSTs) is presented which suggest an important role of these enzymes in protection against oxidative stress and a role of lipid peroxidation products in stress mediated signaling. Overexpression of 4-HNE metabolizing GSTs (mGSTA4-4, hGSTA4-4, or hGST5.8) protects cells against 4-HNE, oxidative stress (H2O2 or xanthine/xanthine oxidase), and UV-A mediated apoptosis by blocking JNK and caspase activation suggesting a role of 4-HNE in the mechanisms of apoptosis caused by these stress factors. The intracellular concentration of 4-HNE appears to be crucial for the nature of cell cycle signaling and may be a determinant for the signaling for differentiation, proliferation, transformation, or apoptosis. The intracellular concentrations of 4-HNE are regulated through a coordinated action of GSTs (GSTA4-4 and hGST5.8) which conjugate 4-HNE to GSH to form the conjugate (GS-HNE) and the transporter 76 kDa Ral-binding GTPase activating protein (RLIP76), which catalyze ATP-dependent transport of GS-HNE. A mild stress caused by heat, UV-A, or H2O2 with no apparent effect on the cells in culture causes a rapid, transient induction of hGST5.8 and RLIP76. These stress preconditioned cells acquire ability to metabolize and exclude 4-HNE at an accelerated pace and acquire relative resistance to apoptosis by UV and oxidative stress as compared to unconditioned control cells. This resistance of stress preconditioned cells can be abrogated by coating the cells with anti-RLIP76 antibodies which block the transport of GS-HNE. These studies and previous reports discussed in this article strongly suggest a key role of 4-HNE in stress mediated signaling.
Źródło:
Acta Biochimica Polonica; 2003, 50, 2; 319-336
0001-527X
Pojawia się w:
Acta Biochimica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Radiation effect on MHD blood flow through a tapered porous stenosed artery with thermal and mass diffusion
Autorzy:
Sharma, M.
Gaur, R. K.
Sharma, B. K.
Powiązania:
https://bibliotekanauki.pl/articles/266195.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
przepływ krwi
reakcja chemiczna
magnetohydrodynamika
Soret and Dufour effects
MHD
blood flow
stenosis
chemical reaction
Opis:
A mathematical model for MHD blood flow through a stenosed artery with Soret and Dufour effects in the presence of thermal radiation has been studied. A uniform magnetic field is applied perpendicular to the porous surface. The governing non-linear partial differential equations have been transformed into linear partial differential equations, which are solved numerically by applying the explicit finite difference method. The numerical results are presented graphically in the form of velocity, temperature and concentration profiles. The effects of various parameters such as the Reynolds number, Hartmann number, radiation parameter, Schmidt number and Prandtl number, Soret and Dufour parameter on the velocity, temperature and concentration have been examined with the help of graphs. The present results have an important bearing on the therapeutic procedure of hyperthermia, particularly in understanding/regulating blood flow and heat transfer in capillaries.
Źródło:
International Journal of Applied Mechanics and Engineering; 2019, 24, 2; 411-423
1734-4492
2353-9003
Pojawia się w:
International Journal of Applied Mechanics and Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Protocols for Wireless Sensor Networks: A Survey
Autorzy:
Kochhar, A.
Kaur, P.
Singh, P.
Sharma, S.
Powiązania:
https://bibliotekanauki.pl/articles/958098.pdf
Data publikacji:
2018
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
cross-layer
Medium Access Control
protocols
Wireless Sensor Networks
Opis:
This paper presents a survey on the MAC and network layer of Wireless Sensor Networks. Performance requirements of the MAC layer are explored. MAC layer protocols for battery-powered networks and energy harvesting-based networks are discussed and compared. A detailed discussion on design constraints and classification of routing protocols is presented. Several routing protocols are compared in terms of such parameters as: energy consumption, scalability, network lifetime and mobility. Problems that require future research are presented. The cross-layer approach for WSNs is also surveyed.
Źródło:
Journal of Telecommunications and Information Technology; 2018, 1; 77-87
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Flavonoids as nutraceuticals. A review
Flawonoidy jako nutraceutyki - przegląd
Autorzy:
Jain, P.K.
Kharya, M.D.
Gajbhiye, A.
Sara, U.V.S.
Sharma, V.K.
Powiązania:
https://bibliotekanauki.pl/articles/71842.pdf
Data publikacji:
2010
Wydawca:
Instytut Włókien Naturalnych i Roślin Zielarskich
Opis:
Phenolic compounds form one of the main classes of secondary metabolites. They display a large range of structures and are responsible for the major organoleptic characteristics of plant-derived foods and beverages, particularly color and taste properties. They also contribute to the nutritional qualities of fruits and vegetables. Among these compounds, flavonoids constitute one of the most prevailing groups among plant phenolics. Owing to their importance in food organoleptic properties and human health, a better understanding of their structures and biological activities indicates their potentials as therapeutic agents and also for predicting and controlling food quality. Due to the variety of pharmacological activities in the mammalian body, flavonoids are more correctly referred as “nutraceuticals”.
Związki fenolowe są jedną z głównych grup metabolitów wtórnych. Mogą mieć bardzo różną strukturę i są odpowiedzialne za większość cech organoleptycznych żywności pochodzenia roślinnego i napojów, szczególnie za ich właściwości kolorystyczne i smakowe. Podwyższają także wartości odżywcze owoców i warzyw. Flawonoidy są jedną z największych grup fenoli roślinnych. Lepsze zrozumienie budowy i właściwości biologicznych tych związków może wykazać ich potencjał jako związków leczniczych, a także mających znaczenie w jakości żywności. Ze względu na różnorodność działań farmakologicznych w organizmach ssaków, flawonoidy powinno się nazywać „nutraceutykami”.
Źródło:
Herba Polonica; 2010, 56, 2
0018-0599
Pojawia się w:
Herba Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Maximizing hybrid seedlings recovery and early identification of highly polyembryonic acid lime (Citrus aurantifolia Swing.) × lemon (Citrus limon Burm.) hybrids using SSR markers
Autorzy:
Dubey, A.K.
Gupta, A.
Sharma, R.M.
Sharma, N.
Powiązania:
https://bibliotekanauki.pl/articles/1077768.pdf
Data publikacji:
2020
Wydawca:
Instytut Ogrodnictwa
Tematy:
hybrid seed
germination
seedling
Citrus aurantifolia
citrus fruit
citrus bacterial canker
Xanthomonas axonopodis pv. citri
SSR marker
Opis:
Nucellar embryony is the major obstacle in getting hybrid seedlings in interspecific crosses in citrus. Hence, the present study was conducted to standardize embryo age, culture media for maximizing germination, and subsequent identification of simple sequence repeat (SSR) markers to differentiate the hybrids. A factorial experiment was conducted with three embryo ages – 80–90, 110–120, and 130–140 days after pollination (DAP). The germination of the rescued immature embryos of acid lime × lemon crosses was initiated on three different growing media. The fruits harvested at 130–140 and 80–90 DAP had a higher number of functional seeds (90%). Older embryos (130–140 DAP) and middle-aged embryos (110–120 DAP) germinated in 100% on Murashige and Skoog (MS) medium supplemented with 500 mg·l -1 malt extract, 1.5 mg·l-1 gibberellic acid (GA3), and 0.02 mg·l-1 naphthalene acetic acid (NAA). MS medium supplemented with 500 mg·l-1 malt extract proved better for the germination of embryos taken at 80–90 DAP. Plantlet survival was the highest in younger embryos (80–90 DAP) cultured on MS basal medium (84.21%) and the lowest in older embryos cultured on MS medium supplemented with 500 mg·l-1 malt extract plus 1.5 mg·l-1 GA3 and 0.02 mg·l-1 NAA. The seedlings obtained from the culture 80–90 DAP had the highest root length (4.9 mm) and shoot length (5.3 mm) at 60 days after inoculation (DAI) on the above medium. SSR marker analysis revealed that CCSM-4 and CAC-33 markers expressed polymorphism between female and male parents, proving their ability to identify the hybrids of ‘Kagzi’ acid lime × ‘Konkan Seedless’ lemon.
Źródło:
Journal of Horticultural Research; 2020, 28, 2; 43-52
2300-5009
Pojawia się w:
Journal of Horticultural Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Efficient Implementation of Multistage Digital Interpolators Using Half Band Filters
Autorzy:
Ratan, R.
Sharma, S.
Kohli, A.
Powiązania:
https://bibliotekanauki.pl/articles/1399680.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
84.30.Qi
84.30.Vn
Opis:
The process of increasing the sampling rate of any signal by a factor is known as interpolation. This paper presents the effective and efficient implementation of multistage implementation of digital interpolator using half band filters. The single stage filters are efficient for lower order interpolation factors but for higher rate change which is required in modern digital communication systems like wideband code division multiple access, worldwide interoperability for microwave access single stage implementation does not gives efficient response. For these applications a multistage implementation of the interpolator is preferred. But multistage implementation increases complexity of the overall system. This complexity can be reduced considerably by using half band filters. All this has been done with the help of the Agilent's advanced design software.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 199-201
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Capillaria hepatica infection: a rare differential for peripheral eosinophilia and an imaging dilemma for abdominal lymphadenopathy
Autorzy:
Sharma, R.
Dey, A.K.
Mittal, K.
Kumar, P.
Hira, P.
Powiązania:
https://bibliotekanauki.pl/articles/6536.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Parazytologiczne
Opis:
Capillaria hepatica which accidentally infects humans is a zoonotic parasite of mammalian liver, primarily rodents and causes hepatic capillariasis. The diagnosis is difficult because of the non-specific nature of clinical symptoms, leading to misdiagnosis and can be confirmed only through liver biopsy or on autopsy results. This paper is written with an objective to report a new case of hepatic capillariasis as a rare differential for peripheral eosinophilia and an imaging dilemma for abdominal lymphadenopathy.
Źródło:
Annals of Parasitology; 2015, 61, 1
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new ratio estimator: an alternative to regression estimator in survey sampling using auxiliary information
Autorzy:
Subzar, Mir
Maqbool, S.
Raja, T. A.
Sharma, Prayas
Powiązania:
https://bibliotekanauki.pl/articles/1186907.pdf
Data publikacji:
2019-12-10
Wydawca:
Główny Urząd Statystyczny
Tematy:
simple random sampling
Opis:
The most dominant problem in the survey sampling is to obtain the better ratio estimators for the estimation of population mean or population variance. Estimation theory is enhanced by using the auxiliary information in order to improve on designs, precision and efficiency of estimators. A modified class of ratio estimator is suggested in this paper to estimate the population mean. Expressions for the bias and the mean square error of the proposed estimators are obtained. Both analytical and numerical comparison has shown the suggested estimator to be more efficient than some existing ones. The bias of the suggested estimator is also found to be negligible for the population under consideration, indicating that the estimator is as good the regression estimator and better than the other estimators under consideration.
Źródło:
Statistics in Transition new series; 2019, 20, 4; 181-189
1234-7655
Pojawia się w:
Statistics in Transition new series
Dostawca treści:
Biblioteka Nauki
Artykuł
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
Artykuł
Tytuł:
Designing a Compact Microstrip Antenna Using the Machine Learning Approach
Autorzy:
Sharma, Kanhaiya
Pandey, Ganga Prasad
Powiązania:
https://bibliotekanauki.pl/articles/1839319.pdf
Data publikacji:
2020
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
artificial neural network
dual band
microstrip antenna
notch
Opis:
This paper presents how machine learning techniques may be applied in the process of designing a compact dual-band H-shaped rectangular microstrip antenna (RMSA) operating in 0.75–2.20 GHz and 3.0–3.44 GHz frequency ranges. In the design process, the same dimensions of upper and lower notches are incorporated, with the centered position right in the middle. Notch length and width are verified for investigating the antenna. An artificial neural network (ANN) model is developed from the simulated dataset, and is used for shape prediction. The same dataset is used to create a mathematical model as well. The predicted outcome is compared and it is determined that the model relying on ANN offers better results.
Źródło:
Journal of Telecommunications and Information Technology; 2020, 4; 44-52
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Phytochemical screening of Pulsatilla species and investigation of their biological activities
Autorzy:
Laska, G.
Sienkiewicz, A.
Stocki, M.
Zjawiony, J.K.
Sharma, V.
Bajguz, A.
Piotrowska-Niczyporuk, A.
Jacob, M.
Khan, S.
Powiązania:
https://bibliotekanauki.pl/articles/56981.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Botaniczne
Opis:
The present study aimed to identify biologically active secondary metabolites from the rare plant species, Pulsatilla patens subsp. patens and the cultivated P. vulgaris subsp. vulgaris. Chromatographic fractionation of the ethanolic extract of the roots of P. patens subsp. patens resulted in the isolation of two oleanane-type glycosides identified as hederagenin 3-O-β-d-glucopyranoside (2.7 mg) and hederagenin 3-O-β-d-galactopyranosyl-(1→2)-β-d-glucopyranoside (3.3 mg, patensin). HPLC analysis of the methanolic extract of the crude root of P. patens subsp. patens and P. vulgaris subsp. vulgaris revealed the presence of Pulsatilla saponin D (hederagenin 3-O-α-l-rhamnopyranosyl(1→2)-[β-d-glucopyranosyl(1→4)]-α-l-arabinopyranoside). Chromatographic analysis using GC-MS of the silylated methanolic extracts from the leaves and roots of these species identified the presence of carboxylic acids, such as benzoic, caffeic, malic, and succinic acids. The extracts from Pulsatilla species were tested for their antifungal, antimicrobial, and antimalarial activities, and cytotoxicity to mammalian cell lines. Both P. patens subsp. patens and P. vulgaris subsp. vulgaris were active against the fungus Candida glabrata with the half-maximal inhibitory concentration (IC₅₀) values of 9.37 μg/mL and 11 μg/mL, respectively. The IC₅₀ values for cytotoxicity evaluation were in the range of 32–38 μg/mL for P. patens subsp. patens and 35–57 μg/mL for P. vulgaris subsp. vulgaris for each cell line, indicating general cytotoxic activity throughout the panel of evaluated cancer and noncancer cells.
Źródło:
Acta Societatis Botanicorum Poloniae; 2019, 88, 1
0001-6977
2083-9480
Pojawia się w:
Acta Societatis Botanicorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Performance Comparison of QPSK Based Single and Double Stage Digital Interpolators
Autorzy:
Ratan, R.
Sharma, S.
Kohli, A.
Powiązania:
https://bibliotekanauki.pl/articles/1399677.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
84.30.Qi
84.30.Vn
Opis:
In this paper, the performance of single stage and double stage digital interpolators has been compared and has been showed that by using multi stage interpolation system the reliability of any communication system increases drastically. Digital signal interpolation systems can be implemented in a variety of ways. The basic interpolator for up-sampling can be a combination of an expander unit with an interpolation low-pass filter in cascade. Complicated implementations can be done by connecting multiple expander and low-pass filter pairs in cascade. This paper presents the efficient implementation of digital interpolation systems for up-sampling of single stage and double stage digital interpolators by using quadrature phase shift keying technique. Comparison is done in terms of spectrum of generated signal, envelope power, modulated signal trajectory, input and output constellation and noise performance.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 196-198
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ocular cysticercosis with intermittent blindness
Autorzy:
Sharma, R.
Dey, A.K.
Joshi, K.
Thakkar, H.
Powiązania:
https://bibliotekanauki.pl/articles/6538.pdf
Data publikacji:
2015
Wydawca:
Polskie Towarzystwo Parazytologiczne
Tematy:
ocular cysticercosis
cysticercosis
intermittent blindness
blindness
larva
Taenia solium
parasite
Opis:
We report this peculiar case of ocular cysticercosis with intermittent blindness which is never reported to our knowledge. This case highlights use of Ultrasound for examination of the posterior segment of eye globe. In limited facilities Ultrasound is the main modality to reach the diagnosis. We also wish to enforce the point that in endemic regions and in young population primary cysticercosis and its complications must be kept in differentials of cystic mass or calcified mass, as in this case, we have seen both the stages of cysticercosis progression.
Źródło:
Annals of Parasitology; 2015, 61, 4
0043-5163
Pojawia się w:
Annals of Parasitology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Generalized α-V-univex functions for multiobjective variational control problems
Autorzy:
Sharma, S.
Choudhury, S.
Jayswal, A.
Powiązania:
https://bibliotekanauki.pl/articles/206848.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
control problem
α-V-univexity
efficiency
sufficiency
duality
Opis:
The purpose of this paper is to introduce a new class of _-V-univex/ generalized _-V-univex functions for a class of multiobjective variational control problems. Moreover, sufficient optimality conditions and Mond-Weir type duality results, associated with the multiobjective variational control problem, are established under aforesaid assumptions.
Źródło:
Control and Cybernetics; 2014, 43, 3; 403-420
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-50 z 135

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