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494 tulosta hakusanalla Faizah Muhammad

Biotechnological Production of Polyhydroxybutyrate (PHB)

Biotechnological Production of Polyhydroxybutyrate (PHB)

Reema Aslam; Faiza Saleem; Yasar Saleem

Lap Lambert Academic Publishing
2014
pokkari
There has been considerable interest in the development and production of biodegradable polymer to solve the problem of pollution caused by the continuous use of synthetic polymer of petroleum origin. Polyhydroxyalkanoates (PHAs) are known to be accumulated as intracellular inclusion in some bacteria. They are accumulated intracellularly as carbon and energy reserves under certain conditions like, in the presence of different carbon sources and other nutrients. For PHB production bacterial strains Enterobacter aerogenes and Bacillus thuringiensis have been selected in this study. The maximum PHB yield was recorded under the cell dry weight basis respectively with glucose as the sole carbon source at PH 7 and temperature 37oC for 48 hours. Bacterial strains have been screened for PHB production by Sudan Black B staining method. PHB has been extracted and purified by acetone-chloroform method. Purification, quantification and analysis of functional group of PHB has been carried out by using HPLC.
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Managing Forest at a Landscape Scale

Managing Forest at a Landscape Scale

Syed Rahman; Faizar Rahman

LAP Lambert Academic Publishing
2011
pokkari
Deforestation in the uplands of Eastern Bangladesh, has reached an alarming rate in recent years due to the various pressures of a growing population, land clearances for agriculture, illegal felling, development interventions, gaps in policy and legislation, and conflicting institutional mandates. The forest coverage of Bangladesh is one of the lowest and the deforestation rate is the highest of any country in the world. Coupled with the process of deforestation, flawed afforestration programmes have seriously exposed Bangladesh to environmental vulnerability. Shifting cultivation, which is still prevalent in the area, contributes significantly to forest loss and is the main cause of land degradation. Agroforestry is a promising alternative that can sustainably manage the remaining forest resources. It has good economic returns, and the income also maintains farmers basic needs, whereas the agroforestry tree crops are a valuable source of fuelwood thus reduce rural poverty significantly.
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Diagnosis of Brain Tumor Using Wrapper Based Genetic Algorithm & Svm

Diagnosis of Brain Tumor Using Wrapper Based Genetic Algorithm & Svm

Aswathy S U; Ajesh Faizal

Scholars' Press
2020
pokkari
The death rate due to tumor has been increasing enormously over the past three decades. This fact increases the importance of research in the medical field, to identify brain pathologies for tumor segmentation and detection, which helps the neurosurgeon to diagnose brain disease and to set up most suitable treatment for the pathology. Normally, manual segmentation of brain image is a tedious and laborious task due to the processing of large amount of data and also due to the presence of minute brain lesions. Thus a completely automated segmentation system has become a real challenging in medical image processing, which has fascinated many researchers in this field, in recent years. The recommended system focus on all possible outcomes, that can be used to address the brain segmentation problems in multi modality MR images, which is widely used imaging technique for its high quality. More precisely, the classifier used in this recommended system is Support Vector Machine (SVM), which is the most prevalent classification method used recently, along with a combination of Wrapper based Genetic Algorithm.
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Information and Cyber security

Information and Cyber security

Aswathy S U; Ajesh Faizal; Antony Asir Daniel V

Noor Publishing
2020
pokkari
Overview of computer security, Security concepts, Need of Security, Access Control, Access control matrix, Security policies, Software vulnerabilities, Security in current domains -Wireless LAN security, Cell phone security, Secure Electronic transactions, Web Services securityObjectivesTo introduce fundamental concepts of security.To introduce and discuss the relevance of security in operating system, web servicesetc.To introduce fundamental concepts of secure electronic transactions
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