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Sathya, V.
- A Secure - Acknowledgment Based Detection Approach for MANET’S
Authors
1 Department of Computer Science and Engineering, A.V.C. College of Engineering, Mannampandal, IN
Source
Networking and Communication Engineering, Vol 8, No 5 (2016), Pagination: 153-162Abstract
Mobile ad hoc networks (MANETs) consist of mobile nodes that work independently without an infrastructure. They are useful in application areas like disaster management emergency and rescue operations where it is not possible to have well-defined infrastructure. MANET is a collection of mobile nodes equipped with both a wireless-transmitter and receiver that communicate with each other via bidirectional wireless links either directly or indirectly. A new intrusion detection system named Enhanced. Adaptive Acknowledgement (EAACK) specially designed for MANETs. By the adoption of MRA scheme, EAACK is capable of detecting malicious nodes despite the existence of false misbehavior report. As the MRA scheme will demonstrate positive performances against Watchdog, TWOACK and AACK in the cases of receiver collision, limited transmission power and false misbehavior report. EAACK demonstrates higher malicious behavior detection rates in certain circumstances while does not greatly affect the network performances.Keywords
Digital Signature, DSA Algorithm, EAACK, MANET, MRA, TWOACK.
- Design of Fixed-Width Multiplier using Baugh-Wooley Algorithm
Authors
1 Department of ECE, PG Scholar, Karpagam University, IN
2 Department of ECE, Karpagam University, IN
Source
Digital Signal Processing, Vol 4, No 5 (2012), Pagination: 200-204Abstract
This paper focuses on the design of fixed-width multipliers with Baugh-Wooley algorithm. The fixed width multipliers derived from Baugh-Wooley algorithm produce n-bit output product with n-bit multiplier and n-bit multiplicand. In previous papers the fixed-width signed multipliers are designed by using both half-adders and full-adders. In this paper we have designed the fixed width Baugh-Wooley multiplier by using only an array of full-adders and the final Ripple Carry Adder (RCA). We have implemented the Multiply and Accumulate (MAC) unit using fixed width signed multiplier and fixed width Baugh-Woolley multiplier. The main contribution of the proposed work is to reduce the area and power by designing the fixed-width Baugh-Wooley multiplier. We also present the comparison results of parameters like power, area, gates and delay.Keywords
Area, Fixed-Width Multiplier, MAC Unit, Multiplication, Power.- Nutrient Mineralization during the Application of Poultry Manure
Authors
1 Department of Environmental Sciences, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, IN
Source
Nature Environment and Pollution Technology, Vol 16, No 3 (2017), Pagination: 905-909Abstract
Among the different organic sources which can be used as manure, poultry litter is important as it is rich in major plant nutrients. A laboratory incubation experiment was conducted to study the rate of carbon and nitrogen mineralization in soil due to the application of various doses of solid and liquid fermented poultry manure application. The study revealed that the highest carbon dioxide evolution (68.0 mg kg-1) and available nitrogen content (63 mg kg-1) were present in the soil that received solid fermented poultry manure @ 680 kg ha-1. The mineralization of carbon (72.8 mg kg-1) and the nitrogen content (64.5 mg kg-1) were maximum at 90th day of incubation. The poultry manure not only added valuable plant nutrients to the soil, but also enhanced the mineralization of nutrients. The present laboratory study confirmed the increased rate of nutrient mineralization in the soil due to the application of various doses of solid and liquid fermented poultry manure.Keywords
Organic Manure, Poultry Manure, Nutrient Mineralization.Full Text
- Evaluation of Urinary Iodine and Thyroid Hormone in Hypothyroidism of South Indian Population
Authors
1 Sree Balaji Medical College and Hospital, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, IN
2 Department of Pediatrics, Sree Balaji Medical College and Hospital, Bharath Institute of Higher Education and Research, Chennai, Tamil Nadu, IN
3 Institute of Biochemistry, Madras Medical College & RGH, Chennai, Tamil Nadu, IN
4 Department of Human Genetics and Molecular Biology, Bharathiyar University, Coimbatore, Tamil Nadu, IN
Source
Indian Journal of Public Health Research & Development, Vol 10, No 11 (2019), Pagination: 1591-1597Abstract
Aim and objective: The present study was conducted to assess the Urinary iodine excretion levels among hypothyroid patients based on Thyroid profile and to correlate the Urinary iodine excretion with various disorders associated with hypothyroidism.
Method: The study group includes 50 control subjects and 100 clinically proven hypothyroidism patients. Histopathological investigations and thyroid scan were taken for all the patients. They were analyzed for Thyroid hormone profile and the Urinary iodine excretion level was determined by Ammonium persulfate method in spot urine sample.
Results: Free T4, TSH and Urinary iodine concentration (UIC) were measured for both the control and study group (P = 0.00).The mean Free T4, TSH & UIC for control group was 1.71 ng/dl, 1.41μIU/ml & 150.28μg/L and the mean Free T4, TSH & UIC for test group was 0.85ng/dl, 48.38μIU/ml & 233.74μg/L respectively. A significant positive correlation between Free T4, TSH and UIC was found. Increased Urinary iodine excretion (UIE) was observed in patients with Papillary Carcinoma, Thyroiditis and Multinodular goiter.
Conclusion: The findings of the present study reveals that increased excretion of urinary iodine reflects under utilization or impaired iodination by the thyroid gland.