Bijay Sarkar

Indian Institute of Technology Dhanbad

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Harish Sharma

Dr. Yashwant Singh Parmar University of Horticulture and Forestry

C. W. Liu

National Dong Hwa University

Ching‐Shiang Fang

National Dong Hwa University

Hao‐Wei Chang

China Medical University Hospital

Yijuan Li

Sun Yat-sen University

Werner E. van Zyl

University of KwaZulu-Natal

Jian‐Hong Liao

National Dong Hwa University

Ju‐Chun Wang

Soochow University

C.W. Duncan

Iowa State University

C. W. Liu

National Applied Research Laboratories

Cooperative Institutions

National Dong Hwa University

Sant Longowal Institute of Engineering and Technology

Michigan State University

Soochow University

Michigan Department of Agriculture and Rural Development

Govind Ballabh Pant University of Agriculture and Technology

Chung Yuan Christian University

Indian Institute of Technology Kanpur

Centre National de la Recherche Scientifique

Central Ground Water Board

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Kinetics of drumstick leaves (Moringa oleifera) during convective drying.

African Journal of Plant Science (2010)

Monica Premi Harish Sharma Bijay Sarkar Charanjiv Singh

Drying characteristics of drumstick leaves (Moringa oleifera) were investigated in a convective type dryer for a temperature range 50 to 80EsC at constant air velocity, 0.5 m/s. Results indicated that drying took place in the falling rate period. The sample dried at 60EsC was found better in color as compared to the samples obtained at 50, 70 and 80EsC. The chroma of the samples, dried in between 50 to 80EsC was ranged 4.9238 to 9.5258 and was the least, 4.9238 for the sample dried at 60EsC, validating the sensory results. Moisture transfer from drumstick leaves was described by applying the Fick’s diffusion model, and the effective moisture diffusivity was calculated. Effective moisture diffusivity increased with increasing temperature. An Arrhenius relation with an activation energy value of 12.50 kJ/mol expressed the effect of temperature on the moisture diffusivity. Mathematical models were fitted to the experimental data and the performance of these models was evaluated by comparing the coefficient of determination (R2) and reduced chi-square (χ2) between the observed and predicted moisture ratio. Verma model gave the best results for describing the drying kinetics of drumstick leaves. Key words: Drumstick leaves, convective drying, mathematical modelling, effective moisture diffusivity, activation energy.

Moringa

10.5897/ajps.9000158

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Citations (53)

A Study on Eosinophils in Relation to Stress

Defence Science Journal (2014)

Bijay Sarkar

A review has been prepared of the present state of knowledge concerning the eosinophil cell of blood in relation to stress. Eosinophil test which is being widely used as an index of adrenal activation or stress has been discussed particularly with reference to its scope and limitation. As the counting of critical evaluation of the various methods for determining the eosinophil count in blood has also been made.

Scope (computer science)

10.14429/dsj.6.7536

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Citations (1)

CCDC 977327: Experimental Crystal Structure Determination

The Cambridge Structural Database (2014)

Jian‐Hong Liao Hao‐Wei Chang Yijuan Li Ching‐Shiang Fang Bijay Sarkar

An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the CCDC and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

Crystal (programming language)

10.5517/cc11szph

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CCDC 977326: Experimental Crystal Structure Determination

The Cambridge Structural Database (2014)

Jian‐Hong Liao Hao‐Wei Chang Yijuan Li Ching‐Shiang Fang Bijay Sarkar

10.5517/cc11szng

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Electrical and Optical Properties of a Single

Kien Wen Sun Bijay Sarkar

In this paper we present the methods to chemically synthesize the Sb 2 Se 3 nanorods and study the electrical and optical properties of a single Sb 2 Se 3 nanorod with an average size of 70 nm in diameter and a length of about 1 mm to 2 mm. The techniques we devised can immobilize and allocate a single nano-object on an electron beam (E-beam) patterned smart substrate. It can also overcome the limita- tion of the spatial resolution of conventional optical techniques (~ 1 mm) to obtain optical spectroscopy in an individual nano-object less than 100 nm in size. We also demonstrate the techniques in using E-beam defined metallic coordination markers as electrodes to measure the conductance of a single Sb 2 Se 3 nanorod.

Nanorod

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The chemistry of phosphorodiselenoates: structure, catalysis and formation of Se-esters

New Journal of Chemistry (2008)

Bijay Sarkar Chiang-Shiang Fang Lee-Yan You Ju‐Chun Wang C. W. Liu

Though metal complexes of dialkyl diselenophosphate ligands [Se2P(OR)2]− (dsep) have been reported in several occasions, the solid-state structure of isolated dsep ligands is still unknown. Herein the ammonium salt of the dsep ligand, NH4Se2P(OiPr)2, is structurally characterized and N–H⋯Se type of H-bonding interactions are revealed. In addition, the NH4Se2P(OR)2 ligands serve as an ammonia source in the Fe powder catalyzed condensation of acetone with ammonia to form 2,2,6,6-tetramethyl-4-oxopiperidinium salts of the dsep ligand, [{H2N(CH2)2(CMe2)2CO}{Se2P(OR)2}] (1a = iPr, 1b = Et) of which 1b is structurally characterized. Novel syntheses of Se-esters of O,O′-dialkylphosporodiselenoic acid, 2, 3, 4, 5, 6, 7, directly from the ammonium salts have been achieved. The reactions, where one of the Se atoms of the dsep unit acts as the nucleophilic center, include Michael addition, epoxide ring opening addition, acylation and α-alkynation.

10.1039/b813267d

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Citations (12)

Electrical and optical properties of a single Sb2Se3 nanorod

Open Chemistry (2009)

T.Y. Ko Chunzhen Yang Kien Wen Sun Hsiu-Wen Chang Bijay Sarkar

Abstract In this paper we present the methods to chemically synthesize the Sb2Se3 nanorods and study the electrical and optical properties of a single Sb2Se3 nanorod with an average size of 70 nm in diameter and a length of about 1 μm to 2 μm. The techniques we devised can immobilize and allocate a single nano-object on an electron beam (E-beam) patterned smart substrate. It can also overcome the limitation of the spatial resolution of conventional optical techniques (∼ 1 mm) to obtain optical spectroscopy in an individual nano-object less than 100 nm in size. We also demonstrate the techniques in using E-beam defined metallic coordination markers as electrodes to measure the conductance of a single Sb2Se3 nanorod.

Nanorod

10.2478/s11532-008-0070-z

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Citations (12)

Use of calmagite for the determination of traces of magnesium in biological materials

Analytical Biochemistry (1969)

U.P.S. Chauhan Bijay Sarkar

Ashing

Masking agent

Tungstic acid

EGTA

10.1016/0003-2697(69)90105-5