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Ravi Kumar, D.
- Synthesis, Characterization and Pharmacological Evaluation of Novel Spiro Heterocyclic Compounds as Anti Diabetic Agents
Abstract Views :486 |
PDF Views:6
Authors
K. Kishore Kumar
1,
R. S. K. Sharma
1,
P. Chanti Babu
1,
M. Sreenivasa Rao
1,
K. Durga Prasadu
1,
D. Ravi Kumar
1
Affiliations
1 Department of Chemistry, CMJ University, Shillong-793101, IN
1 Department of Chemistry, CMJ University, Shillong-793101, IN
Source
Asian Journal of Research in Chemistry, Vol 10, No 3 (2017), Pagination: 393-398Abstract
Natural products possessing a spiro carbon in their molecules have proven their biological activity in agriculture and medicine. The present paper describes the synthesis, characterization of five newly synthesized Spiro-compounds characterized by means of chromatography, IR, 1H-NMR and Mass spectral analysis. The author carried in vitro anti diabetic methods like alpha amylase and alpha glucosidase methods for anti diabetic activity of tilted compounds. The investigation of anti diabetic activity revealed that the test compounds of Spiro compounds showed favorable anti diabetic activity. Among the titled compounds some were having potent antidiabetic activity.Keywords
Spiro Heterocyclic Compounds, Spectral Analysis, In Vitro Antidiabetic Activity, Alpha Amylase Enzyme Method and Alpha-Glucosidase Enzyme Method.
- Development and Design Considerations of Hydro-Mechanical Deep Drawing
Abstract Views :162 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi-16, IN
1 Department of Mechanical Engineering, Indian Institute of Technology Delhi, New Delhi-16, IN
Source
Manufacturing Technology Today, Vol 3, No 3 (2004), Pagination: 15-22Abstract
Hydro-mechanical deep drawing is a process for producing cup shaped parts with the assistance of a pressurized fluid. The development of hydro-mechanical deep drawing process is reviewed in this paper. Findings of different researchers and the applications of the process are described. A comparison is made between various counter-pressure processes. The advantages of the processes over conventional deep drawing are discussed. Design of hydro-mechanical deep drawing requires detailed considerations than that for the forming of components with conventional deep drawing. Analytical and Finite element simulations were conducted to find out the different features of tooling design for hydro-mechanical deep drawing.- Improvement in Drawability by Hydraulic Counter-Pressure Deep Drawing
Abstract Views :175 |
PDF Views:0
Authors
Affiliations
1 Department of Mechanical Engg., IIT Delhi, New Delhi, IN
1 Department of Mechanical Engg., IIT Delhi, New Delhi, IN
Source
Manufacturing Technology Today, Vol 2, No 6 (2003), Pagination: 6-10Abstract
Hydraulic counter pressure deep drawing is a process for producing cup shaped parts with the assistance of a pressurized fluid. In the present work a complete experimental set up has been designed and fabricated to conduct hydro-mechanical deep drawing on a 315 tonne hydraulic press. A comparison was made between conventional and hydro-mechanical deep drawing using low carbon steel sheets (EDD grade) of 1.00 mm sheet thickness. Limiting draw ratio (LDR) has been determined experimentally by using blanks of various diameters. Effect of counter pressure on LDR was also studied. Pre-bulging height was also measured at different chamber pressures and LDR was theoretically predicted. It was found that by hydro-mechanical deep drawing higher drawabllity, more uniform thickness distribution and better surface finish were obtained when compared to conventional deep drawing.- Loss reduction and reliability optimization in electrical distribution systems using network reconfiguration
Abstract Views :179 |
PDF Views:0
Authors
D. Ravi Kumar
1,
V. Sankar
2
Affiliations
1 VNR Vignana Jyothi Institute of Engineering & Technology, Hyderabad-500090, IN
2 JNTU Anantapur, College of Engineering, Anantapur-515 002, IN
1 VNR Vignana Jyothi Institute of Engineering & Technology, Hyderabad-500090, IN
2 JNTU Anantapur, College of Engineering, Anantapur-515 002, IN