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Now showing items 1-20 of 103

On the Low Reynolds Number Mass Transfer in Packed Beds

S. N. UPADHYAY*; B. K. D. AGRAWAL; D. R. SINGH1 (1975)
On the Low Reynolds Number Mass Transfer in Packed Beds

Upadhyay, S.N.; Agrawal, B.K.D.; Singh, D.R. (Society of Chemical Engineers, Japan, 1975)
DEVELOPING AND FULLY DEVELOPED TURBULENT FLOW THROUGH ANNULI

R. P. SINGH; K. K. NIGAM; P. MISHRA (1980)

Turbulent flow velocity profiles for the inner and outer flow regions of annuli are proposed. Theoretical expressions for friction factors and entrance region pressure drops are developed and are further extended to the ...
Friction factor for newton and non newtonian fluid flow in curved pipes

SINGH, R. P.; MISHR, P. (1980)

The present work deals with the study of laminar and turbulent flow of Newtonian and non-Newtonian fluids flowing through helical and Archimedian spiral coils. By using a suitable viscosity expression corresponding to the ...
A closed form solution of convective mass transfer model for intracellular calcium response of endothelial cells

Kumar, V.; Pandey, R.N.; Upadhyay, S.N. (Taylor and Francis Inc., 1998)

Endothelial cells, lining the entire vascular system, respond to change in concentration of specific agonist like adenosine triphosphate (ATP) by increasing cytosolic Ca2+ concentration, producing prostacyclin, endothelium ...
Exact Solution of Convective Mass Transfer Model for Calcium Response of Endothelium

Kumar, V.; Pandey, R.N.; Upadhyay, S.N. (Taylor and Francis Inc., 2000)

An exact solution for the concentration profile in tubes with surface reaction coupled with permeation have been obtained in terms of fast converging confluent hypergeometric function that gives accurate results. An excellent ...
Computing energy budget within a crop canopy from Penmann's formulae

Mohan, M.; Srivastava, K.K. (Indian Academy of Sciences, 2001)

The Lhomme's model (1988a), that extended Penmann's formulae to a multi-layer model, is redefined as a function of micrometeorological and physiological profiles of crop canopy. The sources and sinks of sensible and latent ...
Mathematical Modeling of Wet Magnesia Flue Gas Desulphurization Process

M. K. Mondal (2008)

Desulphurization of flue gases from various chemical industries in a techno-econo-enviro manner is a demanding technology. The concentrations of sulphur dioxide in and around these plants overshoot the danger point. In ...
Removal of Pb(II) from industrial wastewater by using various natural materials - A review

Mondal, M.K. (2008)

Lead's history in science, medicine and technology has been overshadowed by its notoriety as a poison in homicides. Lead is viewed as being synonymous with toxicity. Dangerous lead concentration in natural, as well as ...
Isothermal kinetics of catalyzed air oxidation of diesel soot

Prasad, R.; Bella, V.R. (Diponegoro University, 2010)

To comply with the stringent emission regulations on soot, diesel vehicles manufacturers more and more commonly use diesel particulate filters (DPF). These systems need to be regenerated periodically by burning soot that ...
Study the effect on activity of alumina supported CuO-CeO2-ZrO2 catalysts prepared by four methods for CO oxidation

Rattan, G.; Prasad, R. (Gadjah Mada University, 2014)

In the present study four catalysts, prepared by four different methods i.e. co- impregnation, citric acid sol-gel, urea nitrate combustion and urea gelation co- precipitation methods, have been used to study the effect ...
Isothermal Kinetics of Diesel Soot Oxidation over La0.7K0.3ZnOy Catalysts

Prasad, R.; Kumar, Abhishek; Mishra, Anupama (Diponegoro University, 2014-06-28)

This paper describes the kinetics of catalytic oxidation of diesel soot with air under isothermal condi-tions (320-350 °C). Isothermal kinetics data were collected in a mini-semi-batch reactor. Experiments were performed ...
Adsorption of cadmium (II) and chromium (VI) from aqueous solution by waste marigold flowers

Mondal, Monoj K.; Mishra, Garima; Kumar, Pradeep (International Centre for Sustainable Development of Energy, Water and Environment Systems SDEWES, 2015-12)

In this work, waste marigold flowers from Temple were used as adsorbent to remove cadmium (II) and chromium (VI) ions from aqueous solutions. Influences of initial heavy metal concentrations, contact time, adsorbent dose, ...
Adsorption of Cadmium (II) and Chromium (VI) from Aqueous Solution by Waste Marigold Flowers

Mondal, Monoj K.; Mishra, Garima; Kumar, Pradeep (International Centre for Sustainable Development of Energy, Water and Environment Systems SDEWES, 2015-12-04)

In this work, waste marigold flowers from Temple were used as adsorbent to remove cadmium (II) and chromium (VI) ions from aqueous solutions. Influences of initial heavy metal concentrations, contact time, adsorbent dose, ...
Design and development of high bioluminescent resonance energy transfer efficiency hybrid-imaging constructs

Kumar, Manoj; Kovalski, Letícia; Broyles, David; and et al (Academic Press Inc., 2016-01-07)

Here we describe the design and construction of an imaging construct with high bioluminescent resonance energy transfer (BRET) efficiency that is composed of multiple quantum dots (QDs; λem = 655 nm) self-assembled onto a ...
Mass transfer and kinetic studies on mercury adsorption by titania nanofibers

Dixit, Abhilasha; Mishra, P. K.; Alam, M. S. (EDP Sciences, 2016-07-01)

The stringent laws and tight regulation on heavy metal bearing wastewaters being discharged into the water stream lead to emergence of technically advanced and super effective treatment methods. Heavy metal contaminated ...
Low-cost renewable hydrogen production using solar photovoltaic panel

Sonwani, Saurabh; Prasad, Ram (Indian Academy of Sciences, 2016-08-25)

The present work focuses on the use of two coaxial polyvinylchloride (PVC) pipes for the fabrication of an electrolyser. Fine perforations in the lower part of the inner pipe were made for easy movement of ions via ...
Piper longum extract as green corrosion inhibitor for aluminium in NaOH solution

Singh, Ambrish; Ahamad, Ishtiaque; Quraishi, Mumtaz A. (Elsevier B.V., 2016-11)

The inhibiting action of Piper longum seed extracts was investigated as the corrosion inhibitors of aluminium in 1 M NaOH solution using potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) methods, ...
Synthesis and catalytic activity of Cu–Cr–O–TiO2 composites for the thermal decomposition of ammonium per-chlorate

Kumar, Harish; Tengli, Prahalad N.; Mishra, Vijay Kumar; Tripathi, Pankaj; Pal, Dan Bahadur; Mishra, Pradeep Kumar (Royal Society of Chemistry, 2017-02-02)

This study presents the sol-gel synthesis of Cu-Cr-O·nTiO2 particles calcined at different temperatures and their catalytic effects on thermal decompostion of AP. The study focuses on the impact of crystallite size, shape ...
Effects of Doping on the Performance of CuMnOx Catalyst for CO Oxidation

Subhashish Dey; Ganesh Chandra Dhal; Prasad, Ram; Mohan, Devendra (Diponegoro University, 2017-04-09)

The rare earth-doped CuMnOx catalysts were prepared by co-precipitation method. The CuMnOx catalyst was doped with (1.5 wt.%) CeOx, (1.0 wt.%) AgOx, and (0.5 wt.%) of AuOx by the dry deposition method. After the precipitation, ...

Now showing items 1-20 of 103

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