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RISS 인기검색어
- 검색키워드
- 저자 : Sahoo Soumya (검색결과 3 건)
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The modelling of fluidized bed dryer for spherical and non spherical particles
Abanti Sahoo,Biswajit Swain,Soumya Sanjeeb Mohapatra 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.5
We designed and modelled a fluidized bed dryer. Based on the literature, modelling of a bed dryer is carriedout for two situations: for spherical and non-spherical particles. Two case studies were taken from the literature formodelling the fluidized bed dryer for naphthalene balls and mushroom slices. Fluidized bed dryer design was carriedout with respect to diffusivity of the bed materials. Drying characteristics in terms of effective diffusivity were studiedfor naphthalene balls and mushroom slices using a tapered fluidized bed dryer. The variation of effective diffusivity wasobtained with change in inlet air temperature, velocity, thickness of slab and drying time. Experimental effective diffusivityas obtained from literature was compared with model predicted values, provided lower deviations with RMSE ofless than 8.28% for spherical naphthalene balls and 0.936% for the mushroom slices. Mass transfer coefficient obtainedfor naphthalene balls was in the range of 2.1×104 to 4.857×103 m sec1. The diffusivity constant was evaluated usingFick’s diffusion equation assuming surface moisture in equilibrium with the surrounding atmosphere. The value of diffusivityconstant (D0) obtained is 1.828×109m2sec1 and the value of activation energy (Ea) obtained is 4.523 kJ mol1.
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Essential oils and their pharmacotherapeutics applications in human diseases
Panda Sneha,Sahoo Soumya,Tripathy Kabita,Singh Yengkhom Disco,Sarma Mrinal Kumar,Babu Punuri Jayasekhar,Singh Mayanglambam Chandrakumar 경희대학교 융합한의과학연구소 2022 Oriental Pharmacy and Experimental Medicine Vol.22 No.1
Essential oils (EOs) are natural products obtained from different parts of a plant, such as flower, leaves, stems, fruits, seeds, roots, barks, or resin. It represents an important part of traditional pharmacopeia practices in healing of human ailments. It is used as raw materials in cosmetics, spices, foods, perfumes, and in treatment of several health disorders. There are several methods for extracting EOs from plants. They are the methods like hydro-distillation, steam distillation, hydro diffusion and cold pressing to name a few. The use of EOs as antimicrobial and pharmaceutical agents for curing various diseases has gained a considerable attraction of researchers in recent times. The complex mixture of EOs and their constituents have been reported to inhibit human pathogens, insects, and another harmful organism. The current review focusses on the chemical bioactive components of EOs, methods of extraction, chemical constituent, different plants as source of extraction and its application towards the treatment of various diseases in our day to day life, in vivo validation of essential oil, nanoformula- tion of essential oils
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Singh, Ajay,Singh, Avtar,Singh, Manvendra,Prakash, Ved,Ambhore, G.S.,Sahoo, S.K.,Dash, Soumya Asian Australasian Association of Animal Productio 2016 Animal Bioscience Vol.29 No.6
A single trait linear mixed random regression test-day model was applied for the first time for analyzing the first lactation monthly test-day milk yield records in Karan Fries cattle. The test-day milk yield data was modeled using a random regression model (RRM) considering different order of Legendre polynomial for the additive genetic effect (4th order) and the permanent environmental effect (5th order). Data pertaining to 1,583 lactation records spread over a period of 30 years were recorded and analyzed in the study. The variance component, heritability and genetic correlations among test-day milk yields were estimated using RRM. RRM heritability estimates of test-day milk yield varied from 0.11 to 0.22 in different test-day records. The estimates of genetic correlations between different test-day milk yields ranged 0.01 (test-day 1 [TD-1] and TD-11) to 0.99 (TD-4 and TD-5). The magnitudes of genetic correlations between test-day milk yields decreased as the interval between test-days increased and adjacent test-day had higher correlations. Additive genetic and permanent environment variances were higher for test-day milk yields at both ends of lactation. The residual variance was observed to be lower than the permanent environment variance for all the test-day milk yields.
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