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Wyszukujesz frazę "Kannan, K." wg kryterium: Autor


Wyświetlanie 1-8 z 8
Tytuł:
COD reduction studies of paper mill effluent using a batch recirculation electrochemical method
Autorzy:
Kannadasan, T.
Sivakumar, V.
Ahmed Basha, C.
Parwate, A. V.
Senthilkumar, K.
Kannan, K.
Powiązania:
https://bibliotekanauki.pl/articles/778894.pdf
Data publikacji:
2011
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
oczyszczalnia ścieków
czas przebywania dystrybucji
reaktor elektrochemiczny
ścieki celulozowo-papiernicze
effluent treatment
residence time distributions
electrochemical reactor
Pulp and Paper mill effluent
Opis:
The conventional method of treating pulp and paper mill effluent involves the biological oxidation by bacterial action of aerobic and anaerobic conditions and aerobic lagooning method, which are less efficiency of removing COD. To overcome the drawbacks of the existing treatment process, in the present work an attempt has been made to study the electro oxidative destruction of the pulp and paper mill effluent using an electrochemical method and the effect of various parameters such as concentration of supporting electrolytes, current densities, flow rates of electrolyte and reservoir volumes of the effluent were conducted. From the experimental results it is observed that the rate of reduction of COD of the effluent increased with an increase in the supporting electrolyte (sodium chloride) concentration, current density where as it decreased with increase in the reservoir volume and the flow rate of electrolyte. The residence time distributions studies have also been conducted to study the behavior of the electrochemical reactor.
Źródło:
Polish Journal of Chemical Technology; 2011, 13, 3; 37-41
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intervals of certain classes of Z-matrices
Autorzy:
Kannan, M.
Sivakumar, K.
Powiązania:
https://bibliotekanauki.pl/articles/729209.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
interval matrix
M-matrix
N-matrix
N₀-matrix
nonnegativity
Opis:
Let A and B be M-matrices satisfying A ≤ B and J = [A,B] be the set of all matrices C such that A ≤ C ≤ B, where the order is component wise. It is rather well known that if A is an M-matrix and B is an invertible M-matrix and A ≤ B, then aA + bB is an invertible M-matrix for all a,b > 0. In this article, we present an elementary proof of a stronger version of this result and study corresponding results for certain other classes as well.
Źródło:
Discussiones Mathematicae - General Algebra and Applications; 2014, 34, 1; 85-93
1509-9415
Pojawia się w:
Discussiones Mathematicae - General Algebra and Applications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Genetic variability, heritability and genetic advance for yield and yield components in watermelon (Citrullus lanatus Thunb.)
Autorzy:
Anburani, A.
Kannan, P.
Muthumanickam, K.
Powiązania:
https://bibliotekanauki.pl/articles/1076673.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Citrullus lanatus
Genotypes
watermelon
yield components
Opis:
Field investigation was carried out to study the genetic variability, heritability and genetic advance and the variability studies showed significant differences among the thirty genotypes for all the thirteen characters. Yield per plant was maximum in CL 4 genotype collected from Atchirupakkam in Villupuram district. The characters viz., number of vines per plant, sex ratio, days to first female flowers, node number of first female flower, days to fruit maturity and number of fruits per plant were recorded the maximum in the same genotype. Genetic analysis indicated maximum phenotypic and genotypic coefficient of variation for single fruit weight and 100 seed weight. The characters viz., fruits diameter, flesh thickness, number of fruits per plant and yield per plant, recorded highest estimate of PCV and moderate estimation of GCV. The characters viz., number of seeds per fruits, flesh thickness, number of primary branches and fruit diameter recorded moderate estimate of PCV and GCV. Lower estimation of GCV was observed for sex ratio, fruit length and number of male and female flowers. High heritability (broad sense) was observed for 100 seed weight, number of seeds per fruit, single fruit weight, vine length, fruit diameter, fruit length, flesh thickness, number of male flowers,sex ratio, yield per plant, number of primary branches per plant, number of female flowers and number of fruits per plant. Based on mean performance, CL 4 followed by CL 22 and CL 10 were selected as the best genotypes in watermelon for the costal ecosystem, by virtue of their higher yield combined with desirable component characters.
Źródło:
World News of Natural Sciences; 2019, 25; 22-30
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of variable viscosity on natural convection flow of an optically thick gray gas past a horizontal surface in the presence of internal heat generation
Autorzy:
Kannan, T.
Malleswaran, A.
Moorthy, M. B. K.
Powiązania:
https://bibliotekanauki.pl/articles/175425.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
assisting and opposing flows
Dufour and Soret effects
internal heat generation
natural convection
radiation
variable viscosity
Opis:
A numerical investigation to discuss the effects of radiation and variable viscosity on heat and mass transfer characteristics of natural convection over a horizontal surface embedded in a saturated porous medium in the presence of internal heat generation is carried out in this study. The working fluid for the investigation is optically thick gray gas. The Dufour and Soret effects are also taken into account. Similarity transformations are employed to obtain nonlinear ordinary differential equations from the governing equations of the present problem. The numerical results for the transformed governing equations are computed by using commercial boundary value problem solver for ordinary differential equations. The effects are discussed by varying the parameters such as radiation, Dufour and Soret numbers, buoyancy ratio, Prandtl number, Schmidt number, and variable viscosity. Presence of internal heat generation enhances the velocity profile and significantly decreases the concentration boundary layer thickness. On increasing fluid radiation, the temperature of the fluid is higher than that of the surface and the concentration boundary layer thickness decreases away from the surface.
Źródło:
Transactions of the Institute of Fluid-Flow Machinery; 2018, 139; 3-22
0079-3205
Pojawia się w:
Transactions of the Institute of Fluid-Flow Machinery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Solid Contamination in Ball Bearing Through Acoustic Emission Signals
Autorzy:
Sheriff, K. A. I.
Hariharan, V.
Kannan, T.
Powiązania:
https://bibliotekanauki.pl/articles/354100.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
bearing
solid contamination
acoustic emission
signal parameter
Opis:
Acoustic emission is one of the effective techniques used for the condition monitoring of rolling element bearings. Contamination is one of the major reasons for bearing early failure due to presence of solid particle in lubricant grease. In most cases, outer race is stationary and the inner race is attached to the rotating assembly. The lubrication is very essential for the bearing to perform under various demanding conditions. The main aim of this project is to analyze the effect of contamination of lubricant by solid particles on the dynamic behavior of rolling bearing. Green sand at three concentration levels 5%, 15%, 25% and different particle sizes 75 μm, 106 μm and 150μm is used to contaminate the lubricant. Experimental tests have been performed for different load and speed condition in good and contaminated ball bearings lubricated with grease. The trends in the amount of AE waves affected by the contamination of the grease were determined. Acoustic emission signals were analyzed in terms of RMS, kurtosis, and peak-peak.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 3; 1871-1874
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of bio control efficacy of synbiotic cherry ( Prunus avium. L.,) juice
Autorzy:
Sheela, T.
Sathees Kannan, T.M.
Jayakumar, K.
Powiązania:
https://bibliotekanauki.pl/articles/10990.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Opis:
The aim of the research was to evaluate that the effect of symbiotic fermented cherry juice containing fructo oligosaccharide to enhance the growth and activity of probiotic strains include Lactobacillus acidophilus was tested for their antibiotic susceptibility, and tolerance to bile. Antifungal activity of symbiotic cherry juice could differ in their antagonistic activity against fungal disease which could be due to the metabolite secreted by the lactic acid bacteriocin specially type of organic acids and added fructo oligo saccharide as a probiotic and for food preservation synbiotic cherry juice was identified and their major compounds was detected using gas chromatographymass spectrum (gc-ms).
Źródło:
International Letters of Natural Sciences; 2015, 42
2300-9675
Pojawia się w:
International Letters of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of soil water dynamics in automated drip irrigated Okra field under plastic mulch
Symulacja numeryczna dynamiki wodnej gleby na polu okry nawadnianym automatycznym systemem kropelkowym pod folią
Autorzy:
Nagaraju, Vidya K.
Nagarajan, Karuppalaki
Kannan, Balaji
Ramanathan, Subbiah
Duraisamy, Ramasamy
Powiązania:
https://bibliotekanauki.pl/articles/2204324.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Rolniczej
Tematy:
automated drip irrigation
HYDRUS-2D
mulch scenario
rootzone moisture
soil water movement
automatyczne nawadnianie kropelkowe
opcja z folią
zawartość wody
strefa korzeniowa
ruch wody glebowej
Opis:
In India, drip irrigation with plastic mulch is a common practise for irrigation that conserves water. For the design and administration of irrigation regimes, a thorough understanding of the distribution and flow of soil water in the root zone is required. It has been demonstrated that simulation models are effective tools for this purpose. In this work, an automated drip-irrigated Okra field with seven treatments namely T1- Soil moisture-based drip irrigation to 100% FC, T2- Soil moisture-based drip irrigation to 80% FC, T3- Soil moisture-based drip irrigation to 60% FC, T4- Timer based drip irrigation to 100% CWR, T5- Timer based drip irrigation to 80% CWR, T6- Timer based drip irrigation to 60% CWR and T7- Conventional drip irrigation at 100% CWR were utilised to mimic the temporal fluctuations in soil water content using the numerical model HYDRUS2D. With the help of the observed data, the inverse solution was used to optimise the soil hydraulic parameters. The model was used to forecast soil water content for seven field treatments at optimal conditions. Root mean square error (RMSE) and coefficient of determination (R2) were used to assess the congruences between the predictions and data. With RMSE ranging from 0.036 to 0.067 cm3xcm-3, MAE ranging from 0.020 to 0.059, and R2 ranging from 0.848 to 0.959, the findings showed that the model fairly represented the differences in soil water content at all sites in seven treatments.
W Indiach, nawadnianie kropelkowe pod folią jest popularną praktyką oszczędzania wody. Projekty i zarządzanie systemami nawadniania wymagają zrozumienia rozmieszczenia i przepływu wody glebowej w strefie korzeniowej. Udowodniono, że skutecznym narzędziem do tego są modele symulacyjne. W niniejszej pracy wykorzystano pole okry nawadnianej automatycznym systemem kropelkowym, które podlegało siedmiu zabiegom, mianowicie: T1 - nawadnianie kropelkowe do 100% pojemności polowej opartej na wilgotności gleby, T2 - nawadnianie kropelkowe do 80% pojemności polowej opartej na wilgotności gleby, T3 - nawadnianie kropelkowe do 60% pojemności polowej opartej na wilgotności gleby, T4 - nawadnianie kropelkowe oparte na czasomierzu do 100% CWR, T5 - nawadnianie kropelkowe oparte na czasomierzu do 80% CWR, T6- nawadnianie kropelkowe oparte na czasomierzu do 60% CWR and T7 - Tradycyjne nawadnianie kropelkowe do 100% CWR, w celu prześledzenia czasowych fluktuacji zawartości wody glebowej przy użyciu modelu numerycznego HYDRUS 2D. Przy użyciu zaobserwowanych danych zastosowano odwrotne rozwiązanie w celu optymalizacji parametrów hydraulicznych wody. Model wykorzystano do przewidzenia zawartości wody glebowej dla siedmiu zabiegów przy optymalnych warunkach. Błąd średniokwadratowy (MSE) oraz pierwiastek błędu średniokwadratowego (RMSE) oraz współczynnik determinacji (R2 ) wykorzystano do oceny zgodności pomiędzy wartościami przewidywanymi a danymi. Przy RMSE wynoszącym od 0,036 do 0,067 cm3xcm-3, MAE od 0,020 do 0,059, oraz R2 0,848 do 0,959, wyniki pokazują, że model dobrze odzwierciedlił różnice w zawartości wody glebowej we wszystkich miejscach i siedmiu zastosowanych zabiegach.
Źródło:
Agricultural Engineering; 2023, 27, 1; 11--32
2083-1587
Pojawia się w:
Agricultural Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of net leaf photosynthesis in Aegiceras corniculatum (L.) Blanco under various saline conditions
Autorzy:
Muthuraman, B.
Robert, G. Amalan
Mathivanan, S.
Jayakumar, K.
Kannan, T. M. Satheesh
Ranganathan, R.
Powiązania:
https://bibliotekanauki.pl/articles/1062837.pdf
Data publikacji:
2019
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aegiceras corniculatum
Photosynthesis
salinity
sodium chloride
Opis:
In the present investigation, a comparative study was made on the effect of exogenous addition of sodium chloride on net leaf photosynthesis (CO2 uptake) in Aegiceras corniculatum (L.) Blanco, a dicotyledonous mangrove species. The net leaf photosynthesis of A. corniculatum was modified in the presence of sodium chloride, it may be called a preferential halophyte. Salinity is one of the most significant environmental challenges also abiotic constraints limiting plant productivity. A. corniculatum could tolerate up to 800 mM sodium chloride concentrations. The net leaf photosynthesis rate was increased with increasing NaCl salinity up to 400 mM. This concentration was found to be the optimum salinity level for this species. In conclusion, it may be inferred that sodium chloride promoted the photosynthesis concentrations upto optimum level of 400 mM in Aegiceras corniculatum (L.) Blanco. beyond 400 mM NaCl decreased the CO2 uptake. The maximum photosynthetic obtained at 400 mM NaCl on the l20th day.
Źródło:
World Scientific News; 2019, 127, 3; 153-162
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

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