Informatics Publishing Limited

D. Praveen Kumar ¹, S. Hema Chandra ², D. Sunitha ³

Affiliations
1 Department of Electronics and Control Engineering, Sree Vidyanikethan Engineering College, Tirupathi-517102, IN
2 Department of Electronics and Control Engineering, Sree Vidyanikethan Engineering College, Tirupathi-517102, IN
3 Department of Electronics and Control Engineering, Sree Vidyanikethan Engineering College, IN

Abstract

This paper is about speed control of induction motor combining composite control mode in series with one of the soft computing techniques, fuzzy logic. The composite control mode PID controller is designed based on Ziegler-Nichols (Z-N) tuning technique. Fuzzy logic controller (FLC) is connected in series with the PID controller for the effective speed control of widely used induction motors, especially direct field-oriented induction motor (DFOIM). The Z-N PID is adopted because its parameter values can be chosen using a simple and useful rule of thumb. The FLC is connected to the PID controller for enhancing robust performance in both dynamic transient and steady-state periods. The FLC is developed based on the output of the PID controller, and the output of the FLC is the torque command of the DFCIM. Simulation results demonstrate that the proposed Z-N PID+FLC scheme can lead to desirable robust speed tracking performance under load torque disturbances.

Keywords

Composite Control Mode, Fuzzy Controller, PID Controller, Speed Tracking Performance.

Full Text

     

D. Sunitha ¹, K. Hemalatha ², M. Nandha Kishora Chary ¹, Rahamat Unissa ¹

Affiliations
1 Department of Pharmaceutical Chemistry, Malla Reddy College of Pharmacy, Maisammaguda, Secunderabad, Telangana, IN
2 Department of Pharmaceutical Chemistry, Acharya and B M Reddy College of Pharmacy, Bangalore, Karnataka, IN

Abstract

The Zika virus is a mosquito-transmitted infection common in Africa and Asia, it did not begin spreading widely in the Western Hemisphere, when an outbreak occurred in Brazil. Few people with less immunity, showed rapidly spreading with infection. Millions of people in tropical regions of the Americas now have been infected. The infection causes no symptoms and leads to no lasting harm. Scientific concern is focused on women who become infected while pregnant and those who develop a temporary form of paralysis after exposure to the virus. The World Health Organization has declared the Zika virus an international public health emergency, that it causes birth defects. As many as four million people could be infected by the end of the year.

Officials at the Centers for Disease Control and Prevention have urged pregnant women against travel to more than thirty countries, mostly in the Caribbean and Latin America, where the outbreak is growing. Some pregnant women who have been to these regions should be tested for the infection.

The infection appears to be linked to the development of unusually small heads and brain damage in newborns - called microcephaly - as well as other neurological defects. In adults, the virus is linked to a form of temporary paralysis. The vast majority of Zika infections are transmitted by mosquitoes, sexually transmitted in only few cases (around dozen).

Recently Bharat Biotech, a Hyderabad-based vaccines and bio-therapeutic manufacturer, developed a vaccine to fight against the dreaded mosquito-borne Zika virus.

This review gives an idea about the recent advances or developments available for treating Zika infection.

Keywords

Zika Virus, Aedes aegypti Mosquito, Birth Defects, Microcephaly, Paralysis.

Full Text

     

D. Sunitha ¹, K. Hemalatha ², M. Sudhakar ¹

Affiliations
1 Malla Reddy College of Pharmacy (Osmania University), Maisammaguda, Hyderabad, Telangana, IN
2 Acharya B. M. Reddy College of Pharmacy, Bangalore, Karnataka, IN

Abstract

Drugs are made to save lives and not cause deaths. Every drug has some side effect if the dose of the drug is correct, then it can be avoided. Some drugs side/ adverse effects can be reduced by another drug. Hence, doctor prescribed medication is safer then self medication. Banned drugs have more adverse/ side effects. Doctors should stop prescribing banned drugs and due to less demand manufacturer will not produce such drugs. As well as the government should make strict laws against the peoples involved in manufacturing and selling of banned drugs. Government should be ordered to dump these cheap drugs in proper manner. And also, India's pharmacovigilance effort has to be scaled up rapidly. People should say stop selling banned drugs.

Keywords

Banned Drugs, Market, Committee, Chemicals, Illegal Drugs.

Full Text