Autor: Devi, S. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Eigenvalue approach to nanobeam in modified couple stress thermoelastic with three-phase-lag model induced by ramp type heating
Autorzy:: Kumar, R.
Devi, S.
Powiązania:: https://bibliotekanauki.pl/articles/279203.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:: modified couple stress thermoelastic
eigenvalue approach
nanobeam
Opis:: This article deals with the study of a thermoelastic nanobeam in a modified couple stress theory subjected to ramp-type heating. The mathematical model is prepared for the nanobeam in thermoelastic three-phase-lag. The Laplace transform and the eigenvalue approach are used to find the displacement component, lateral deflection, temperature change and axial stress of the thermoelastic beam. The general algorithm of the inverse Laplace transform is developed to compute results numerically. The comparison of three-phase-lag, dual-phaselag and GN-III (1993) models are represented, and their illustration is depicted graphically. This study finds the applications in engineering, medical science, sensors, etc.
Źródło:: Journal of Theoretical and Applied Mechanics; 2017, 55, 3; 1067-1079
1429-2955
Pojawia się w:: Journal of Theoretical and Applied Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: An analysis of the public distribution system in rural Haryana, India
Analiza publicznego systemu dystrybucji na obszarach wiejskich indyjskiego stanu Haryana
Autorzy:: Devi, S.
Siwach, M.
Powiązania:: https://bibliotekanauki.pl/articles/2191580.pdf
Data publikacji:: 2023
Wydawca:: Akademia Bialska im. Jana Pawła II
Tematy:: India
Haryana
rural area
public distribution system
food safety
Opis:: Subject and Purpose of the work: The present paper aims to analyze the functioning and coverage of the public distribution system in rural Haryana, India. Materials and methods: For analyses, secondary data were taken from various government reports like the Economic Survey of Haryana, Economic Survey of India, Census of India, Food and Supply Department, Haryana, etc. The analyses were conducted using descriptive statistics. Results: The study’s findings revealed that the public distribution system facilitates 51.45 percent of the total rural population of Haryana. As Per the guidelines of the National Food Security Act (NFSA) 2013, 75 percent of the rural population should be covered by the States under the benefits of the public distribution system. The public distribution system operates in the State with a vast network of Fair Price Shops (FPS) and a well-organized structure. The study revealed that the ratio of the beneficiaries of PDS to the FPS in Haryana is quite satisfactory and meets the criteria fixed by the Food and Supply Department of India. Conclusions: The State of Haryana does not meet the criteria of NFSA, 2013. One primary reason is that a large part of the population falls under the APL category, which has been excluded from the benefits of PDS after the implementation of NFSA, 2013
Źródło:: Economic and Regional Studies; 2023, 16, 1; 118-132
2083-3725
2451-182X
Pojawia się w:: Economic and Regional Studies
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Role of brownian motion and thermophoresis effects on hydromagnetic flow of nanofluid over a nonlinearly stretching sheet with slip effects and solar radiation
Autorzy:: Anjali Devi, S. P.
Mekala, S.
Powiązania:: https://bibliotekanauki.pl/articles/265372.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: nanofluid
magnetohydrodynamika
promieniowanie
rozciąganie arkusza
poślizg
MHD
radiation
slip flow
stretching sheet
Opis:: Hydromagnetic flow of water based nanofluids over a nonlinearly stretching sheet in the presence of velocity slip, temperature jump, magnetic field, nonlinear thermal radiation, thermophoresis and Brownian motion has been studied. The article focuses on Cu water nanofluid and Ag water nanofluid. The similarity transformation technique is adopted to reduce the governing nonlinear partial differential equations into nonlinear ordinary differential equations and then they are solved numerically utilizing the Nachistem – Swigert shooting method along with the fourth order Runge Kutta integration technique. The influence of physical parameters on the flow, temperature and nanoparticle volume fraction are presented through graphs. Also the values of the skin friction coefficient at the wall and nondimensional rate of heat transfer are given in a tabular form. A comparative study with previous published results is also made.
Źródło:: International Journal of Applied Mechanics and Engineering; 2019, 24, 3; 489-508
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: 4.

Tytuł:: Effects of non-uniform heat generation /absorption and radiation on hydromagnetic dissipative flow over a porous nonlinear stretching surface with heat and mass fluxes
Autorzy:: Anjali Devi, S. P.
Agneeshwari, M.
Powiązania:: https://bibliotekanauki.pl/articles/264962.pdf
Data publikacji:: 2019
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: magnetohydrodynamika
strumień ciepła
strumień masy
absorpcja ciepła
MHD
heat flux
mass flux
non-uniform heat generation/absorption
Opis:: Forced convective heat and mass transfer flow of hydromagnetic, radiating and dissipative fluid over a porous nonlinear stretching sheet in the presence of non-uniform heat generation/absorption is investigated numerically. The system of nonlinear partial differential equations governing the physical problem is reduced to nonlinear ordinary differential equations by means of suitable similarity transformations and are solved numerically using Nachtsheim Swigert shooting iteration scheme together with fourth order Runge Kutta method. The effects of various physical parameters on velocity, temperature and concentration distributions are depicted graphically. The important findings of this study exhibited that the effect of non-uniform heat generation/absorption parameter and radiation parameter have significant role in controlling thermal boundary layer thickness and temperature. Numerical values of the skin friction coefficient, temperature and concentration at the wall are shown in a tabula form. A comparison is made with previously published data which results in good agreement.
Źródło:: International Journal of Applied Mechanics and Engineering; 2019, 24, 4; 36-52
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: 5.

Tytuł:: Stress-tolerant antagonistic plant growth-promoting rhizobacteria from Zea mays
Autorzy:: Kaur, A.
Devi, S.R.
Vyas, P.
Powiązania:: https://bibliotekanauki.pl/articles/66648.pdf
Data publikacji:: 2018
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: plant disease
biological control
plant health
antagonism
plant growth
Bacillus
maize
Zea mays
stress tolerance
phosphate solubilization
Opis:: Biological control of plant diseases is strongly emerging as an effective alternative to the use of chemical pesticides and fungicides. Stress tolerance is an important attribute in the selection of bacteria for the development of microbial inoculants. Fourteen salt-tolerant bacteria showing different morphological features isolated from the rhizosphere of maize were evaluated for different plant growth-promoting activities. All isolates showed auxin production ranging from 5 to 24 μg ⋅ ml–1 after 48 h incubation in tryptophan supplemented media. Phosphate solubilization ranged from 15 to 419 μg ⋅ ml–1. 1-aminocycloproprane- 1-carboxylate (ACC) deaminase activity was shown by 6 isolates, ammonia production by 9 isolates, siderophore production by 8 isolates while HCN production by 4 isolates. Four bacterial isolates with all plant growth-promoting properties also showed strong antagonistic activities against Fusarium oxysporum, F. verticillioides, Curvularia lunata and Alternaria alternata and abiotic stress tolerance against salinity, temperature, pH and calcium salts. Two selected bacterial isolates significantly enhanced the growth of pea and maize test plants under greenhouse conditions. The bacterial isolate M1B2, which showed the highest growth promotion of test plants, was identified as Bacillus sp. based on phenotypic and 16S rDNA gene sequencing. The results indicated that Bacillus sp. M1B2 is a potential candidate for the development of microbial inoculants in stressful environments.
Źródło:: Journal of Plant Protection Research; 2018, 58, 2
1427-4345
Pojawia się w:: Journal of Plant Protection Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Evaluation of policies to reduce transportation pollution using system dynamics
Autorzy:: Manohar, G.
Devi, S. P.
Rao, K. S.
Powiązania:: https://bibliotekanauki.pl/articles/208080.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: road transport
road pollutants
road transport emissions
vehicle emissions
transport drogowy
zanieczyszczenia drogowe
emisje motoryzacyjne
emisja komunikacyjna
emisja zanieczyszczeń komunikacyjnych
emisja zanieczyszczeń samochodowych
Opis:: Pollution caused by road transportation is the major factor affecting human health and adversely affecting the global warming. In the study, a system dynamics model has been applied to forecast vehicle emissions from road transport to evaluate policies in the transportation management. The proposed model was applied to evaluate and compare three transportation policy scenarios including road expansion, public transit incentive and enforcement of quality norms for vehicles. The pollution emission data is taken in Chennai, Tamil Nadu. The pollution in the study area will increase substantially if no management plans are implemented. The impact of population increase on transportation pollution has also been considered. It was found that among the proposed policies, implementation of the transit incentive policy to adopt public transports and the implementation of Bharat Stage IV norms for vehicles proved to be efficient in reducing the transport pollution to a great extent.
Źródło:: Environment Protection Engineering; 2014, 40, 4; 143-153
0324-8828
Pojawia się w:: Environment Protection Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Effect of phytogenics on growth performance, fecal score, blood profiles, fecal noxious gas emission, digestibility, and intestinal morphology of weanling pigs challenged with Escherichia coli K88
Autorzy:: Mohana Devi, S.
Lee, S.I.
Kim, L.H.
Powiązania:: https://bibliotekanauki.pl/articles/30946.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:: Phytogenic feed additives have become attractive alternatives for use in animal diets. The objective of the present study was to evaluate the effect of a phytogenic-based feed additive on growth performance, nutrient digestibility, blood profiles, fecal noxious gas emission, and intestinal morphology of weaning pigs after dietary challenge with E. coli K88. A total of 120 crossbred pigs [(Yorkshire × Landrace) × Duroc)] with an initial body weight (BW) of 6.09 ± 0.96 kg (21 d of age) were assigned randomly to 1 of the 4 dietary treatments. Each pen housed 5 pigs, and there were 6 pens/treatment. Treatments included: T1, negative control (without antibiotics); T2, T1 + antibiotic; T3, T1 + 0.05% phytogenics; and T4, T1 + 0.2% commercial mix of organic acids. Overall, the average daily gain (ADG) with the T3 treatment was higher (P<0.05). At wk 1, the apparent total tract digestibility (ATTD) of dry matter (DM) was increased (P<0.05) with T4 treatment. The ATTD of ash with T3 and T4 treatments was greater (P<0.05). At wk 3, pigs fed with the T4 diet had a significantly higher (P<0.05) ATTD of DM. The ATTD of ash and calcium (Ca) was significantly increased (P<0.05) with the T4 treatment. Pigs fed with the T3 diet had a higher (P<0.05) ATTD of phosphorus (P). At wk 6, the ATTD of ash was significantly increased (P<0.05) with the T1 and T3 treatments. The data indicate that phytogenics positively affect growth performance of weaning pigs, indicating that their use as an alternative in the diets of weaning pigs can significantly improve ADG, under challenge with E.coli K88.
Źródło:: Polish Journal of Veterinary Sciences; 2015, 18, 3
1505-1773
Pojawia się w:: Polish Journal of Veterinary Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: Radiation effects on MHD boundary layer flow and heat transfer over a nonlinear stretching surface with variable wall temperature in the presence of non-uniform heat source/sink
Autorzy:: Devi, S. P. A.
Agneeshwari, M.
Raj, J. W. S.
Powiązania:: https://bibliotekanauki.pl/articles/947377.pdf
Data publikacji:: 2018
Wydawca:: Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:: magnetohydrodynamika
promieniowanie
źródło ciepła
MHD
radiation
non-uniform heat source/sink
variable wall temperature
Opis:: In this paper, an investigation is made to analyze the effects of radiation on an MHD boundary layer flow and heat transfer over a nonlinear stretching surface with variable wall temperature and non-uniform heat source/sink. A suitable similarity transformation is used to transform the governing nonlinear partial differential equations into a system of nonlinear ordinary differential equations by using the Nachtsheim Swigert shooting iteration technique together with the fourth order Runge Kutta method. The effects of various physical parameters over a dimensionless velocity and dimensionless temperature are presented graphically. The numerical results for the skin friction co-efficient and non-dimensional rate of heat transfer are presented and discussed for several sets of values of the parameters. Comparisons of numerical results are made with the earlier published results under limiting cases.
Źródło:: International Journal of Applied Mechanics and Engineering; 2018, 23, 2; 289-305
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:: Parallel MCNN (PMCNN) with application to prototype selection on large and streaming data
Autorzy:: Devi, V. S.
Meena, L.
Powiązania:: https://bibliotekanauki.pl/articles/91686.pdf
Data publikacji:: 2017
Wydawca:: Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:: prototype selection
one-pass algorithm
streaming data
distributed algorithm
Opis:: The Modified Condensed Nearest Neighbour (MCNN) algorithm for prototype selection is order-independent, unlike the Condensed Nearest Neighbour (CNN) algorithm. Though MCNN gives better performance, the time requirement is much higher than for CNN. To mitigate this, we propose a distributed approach called Parallel MCNN (pMCNN) which cuts down the time drastically while maintaining good performance. We have proposed two incremental algorithms using MCNN to carry out prototype selection on large and streaming data. The results of these algorithms using MCNN and pMCNN have been compared with an existing algorithm for streaming data.
Źródło:: Journal of Artificial Intelligence and Soft Computing Research; 2017, 7, 3; 155-169
2083-2567
2449-6499
Pojawia się w:: Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: One-Three Join: A Graph Operation and Its Consequences
Autorzy:: Shalu, M.A.
Devi Yamini, S.
Powiązania:: https://bibliotekanauki.pl/articles/31341697.pdf
Data publikacji:: 2017-08-01
Wydawca:: Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:: one-three join
bipartite-join
homogeneous set
odd hole-free graphs
Opis:: In this paper, we introduce a graph operation, namely one-three join. We show that the graph G admits a one-three join if and only if either G is one of the basic graphs (bipartite, complement of bipartite, split graph) or G admits a constrained homogeneous set or a bipartite-join or a join. Next, we define ℳ_H as the class of all graphs generated from the induced subgraphs of an odd hole-free graph H that contains an odd anti-hole as an induced subgraph by using one-three join and co-join recursively and show that the maximum independent set problem, the maximum clique problem, the minimum coloring problem, and the minimum clique cover problem can be solved efficiently for ℳ_H.
Źródło:: Discussiones Mathematicae Graph Theory; 2017, 37, 3; 633-647
2083-5892
Pojawia się w:: Discussiones Mathematicae Graph Theory
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 11.

Tytuł:: Multicriteria Oppositional-Learnt Dragonfly Resource-Optimized QoS Driven Channel Selection for CRNs
Autorzy:: Sirisha Devi, Ch. S. N.
Maloj, Suman
Powiązania:: https://bibliotekanauki.pl/articles/2174446.pdf
Data publikacji:: 2022
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: cognitive ratio network (CRN)
multicriteria dragonfly optimization
oppositional learning
optimal available channel
QoS metric
Opis:: Cognitive radio networks (CRNs) allow their users to achieve adequate QoS while communicating. The major concern related to CRN is linked to guaranteeing free channel selection to secondary users (SUs) in order to maintain the network’s throughput. Many techniques have been designed in the literature for channel selection in CRNs, but the throughput of the network has not been enhanced yet. Here, an efficient technique, known as multicriteria oppositional-learnt dragonfly resourceoptimized QoS-driven channel selection (MOLDRO-QoSDCS) is proposed to select the best available channel with the expected QoS metrics. The MOLDRO-QoSDCS technique is designed to improve energy efficiency and throughput, simultaneously reducing the sensing time. By relying on oppositional-learnt multiobjective dragonfly optimization, the optimal available channel is selected depending on signal-to-noise ratio, power consumption, and spectrum utilization. In the optimization process, the population of the available channels is initialized. Then, using multiple criteria, the fitness function is determined and the available channel with the best resource availability is selected. Using the selected optimal channel, data transmission is effectively performed to increase the network’s throughput and to minimize the sensing time. The simulated outputs obtained with the use of Matlab are compared with conventional algorithms in order to verify the performance of the solution. The MOLDRO-QoSDCS technique performs better than other methods in terms of throughput, sensing time, and energy efficiency.
Źródło:: Journal of Telecommunications and Information Technology; 2022, 4; 41--46
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 12.

Tytuł:: Traffic Engineering in Software Defined Networks: A Survey
Autorzy:: Abbasi, M. R.
Guleria, A.
Devi, M. S.
Powiązania:: https://bibliotekanauki.pl/articles/309347.pdf
Data publikacji:: 2016
Wydawca:: Instytut Łączności - Państwowy Instytut Badawczy
Tematy:: application awareness
software defined networking
traffic engineering
Opis:: An important technique to optimize a network and improve network robustness is traffic engineering. As traffic demand increases, traffic engineering can reduce service degradation and failure in the network. To allow a network to adapt to changes in the traffic pattern, the research community proposed several traffic engineering techniques for the traditional networking architecture. However, the traditional network architecture is difficult to manage. Software Defined Networking (SDN) is a new networking model, which decouples the control plane and data plane of the networking devices. It promises to simplify network management, introduces network programmability, and provides a global view of network state. To exploit the potential of SDN, new traffic engineering methods are required. This paper surveys the state of the art in traffic engineering techniques with an emphasis on traffic engineering for SDN. It focuses on some of the traffic engineering methods for the traditional network architecture and the lessons that can be learned from them for better traffic engineering methods for SDN-based networks. This paper also explores the research challenges and future directions for SDN traffic engineering solutions.
Źródło:: Journal of Telecommunications and Information Technology; 2016, 4; 3-14
1509-4553
1899-8852
Pojawia się w:: Journal of Telecommunications and Information Technology
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 13.

Tytuł:: Hydroponics agriculture as a modern agriculture technique
Autorzy:: Monisha, K.
Kalai Selvi, H.
Sivanandhini, P.
Sona Nachammai, A.
Anuradha, C. T.
Rama Devi, S.
Kavitha Sri, A.
Neya, N. R.
Vaitheeswari, M.
Hikku, G. S.
Powiązania:: https://bibliotekanauki.pl/articles/24200644.pdf
Data publikacji:: 2023
Wydawca:: Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:: hydroponics
agriculture
hoagland solution
macronutrients
micronutrients
types of hydroponic system
hydroponika
rolnictwo
makroskładniki
mikroskładniki
Opis:: Purpose Hydroponics, also known as controlled environment agriculture, is a method of cultivating plants and herbs without soil using mineral-supplemented solutions. Agriculture biotechnology enhances its wings on developing genetically modified plants for expanding crop yield and introducing characteristic features such as growing seasonal crops throughout the year, weather-resistant, and pest resistance. Compared to traditional agriculture, hydroponic cultivation yields high-quality crops with 90% more efficient use of water. Therefore, hydroponic cultivation could be considered a succeeding future of agriculture. In this context, understanding agriculture through the hydroponic route is vital for the efficient cultivation of crops. This review elaborates on the different classes of hydroponic systems and the factors that enable the systematic elements of the frame-up. Design/methodology/approach The significant intent of this review is to provide information on distinct hydroponic systems. Findings The present review reports a comprehensive discussion about the significance of the hydroponics system, its mechanism, nutrient solution preparation, types of hydroponic setup, and the challenges faced and would light up the knowledge in the same. Originality/value This review focus on the current feasible hydroponic method of crop cultivation.
Źródło:: Journal of Achievements in Materials and Manufacturing Engineering; 2023, 116, 1; 25--35
1734-8412
Pojawia się w:: Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 14.

Tytuł:: Identification of volatile organic compound producing Lignicolous fungal cultures from Gujarat, India
Autorzy:: Nagadesi, Praveen Kumar
Arya, Arun
Babu, Duvvi Naveen
Prasad, K. S. M.
Devi, P. P.
Powiązania:: https://bibliotekanauki.pl/articles/1178801.pdf
Data publikacji:: 2017
Wydawca:: Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:: India
Lenzites sterioides
Lignicolous fungi
Volatile organic compound (VOC)
Opis:: This study aims to identify the lignicolous basidiomycetes species that synthetize volatile organic compounds with potential applications in food industry, cosmetics, perfumery and agriculture. We have collected fruiting bodies from different woody plants and the lignicolous basidiomyctes species were identified by their macroscopic and microscopic characteristics. From the context of the fresh fruiting bodies small fragments of dikaryotic mycelium were extracted and inoculated on PDA and MEA media for isolation and pure cultures are kept in dark at a temperature of 25°C. 11 species of lignicolous basidiomycetes, belonging to 6 families and 5 orders were isolated in pure culture. The isolates were analyzed in vitro and the main characteristics that were observed are: the general aspect of the surface and the reverse of the colonies, the changing in colour and the growth rate of the mycelium and also the specific odour which indicates the presence of the organic volatile compounds. for the first time lignicolous fungi like Flavodon flavus (Klotz.) Ryv., Ganoderma lucidum(Curtis) P. Karst, Hexagonia apiaria (Pers.) Fr., Lenzites betulina (L.) Fr. Lenzites eximia Berk. & M.A. Curtis, Lenzites sterioides (Fr.) Ryv., Navisporus floccosus (Bres.) Ryv., Phellinus gilvus (Schwein.) Pat., and Trametes pini (Thore) Britzelm. were producing characteristic smell that indicates presence of Volatile organic compounds. For the first time from Gujarat, India the Volatile organic compound producing fungi were identified and their culture characters also described.
Źródło:: World Scientific News; 2017, 90; 150-165
2392-2192
Pojawia się w:: World Scientific News
Dostawca treści:: Biblioteka Nauki