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A Review of Comparative study of DSR and AODV Routing Protocols for Mobile AD-Hoc Network (MANET)
Naveen Hemrajani,Nidhi Goyal
International Journal of Engineering Sciences & Research Technology , 2013,
Abstract: MANET stands for Mobile Ad hoc Network. It is a decentralized autonomous wireless system which consists of free nodes. MANET sometimes called mobile mesh network is a self configurable wireless network. A MANET consists of mobile nodes, a router with multiple hosts and wireless communication devices. The ability of self Configuration of these nodes makes them more appropriate for urgently required network connection. For example in disaster hit areas where there is no communication infrastructure. It is wholly desired to have a swift communication infrastructure. MANET is the swift remedy for any disaster situation. A range of literature relating to the field of MANET routing was identified and reviewed, It is also reviewed literature on the topic of securing AODV and DSR based MANETs as this may be the most popular MANET protocol. The literature review identified a number of trends within research papers such as elite use of the random waypoint mobility model, excluding key metrics from simulation results and not comparing protocol performance against available alternatives.
Leiomyoma of rectus sheath: An uncommon entity: Report of two cases
Goyal Nidhi,Khurana Nita
Indian Journal of Pathology and Microbiology , 2010,
Wavelet Transform Based Image Denoise Using Threshold Approaches
Akhilesh Bijalwan,Aditya Goyal,Nidhi Sethi
International Journal of Engineering and Advanced Technology , 2012,
Abstract: This paper deals with the threshold estimation method for image denoising in the wavelet transform domain. The proposed technique is based upon the discrete wavelet transform analysis where the algorithm of wavelet threshold is used to calculate the value of threshold. The proposed method is more efficient and adaptive because the parameter required for calculating the threshold based on sub band data. The threshold value is computed by xσ2w0 /σ where x is the scale parameter which depends upon the sub band size and number of decomposition and σw0 is the noise variance estimation. σ are the wavelet coefficient variance estimation in various sub bands. Experimental results on several test images are compared with popular denoise technique from three aspects (PSNR, RMSE and CoC).
LOD Cloud Mining for Prognosis Model(Case Study: Native App for Drug Recommender System)  [PDF]
Nidhi Kushwaha, Raman Goyal, Pramiti Goel, Sidharth Singla, Om Prakash Vyas
Advances in Internet of Things (AIT) , 2014, DOI: 10.4236/ait.2014.43004
The goal of this project is to use the Semantic Web Technologies and Data Mining for disease diagnosis to assist health care professionals regarding the possible medication and drug to prescribe (Drug recommendation) according to the features of the patient. Numerous Decision Support Systems (DSS) and Expert Systems allow medical collaboration, like in the differential diagnosis specific or general. But, a medical recommendation system using both Semantic Web technologies and Data mining has not yet been developed which initiated this work. However, it should be mentioned that there are several system references about medicine or active ingredient interactions, but their final goal is not the Drug recommendation which uses above technologies. With this project we try to provide an assistant to the doctor for better recommendations. The patient will also able to use this system for explanation of drugs, food interaction and side effects of corresponding drugs.
Angiographic Evaluation of Coronary Collateral Circulation Patterns in Patients with Coronary Artery Disease Requiring Surgical Revascularization  [PDF]
Deepak Puri, Nidhi Puri
World Journal of Cardiovascular Diseases (WJCD) , 2017, DOI: 10.4236/wjcd.2017.711036
Abstract: Background: Coronary artery disease is highly prevalent in India with onset at a younger age. Coronary collateral circulation plays an important role in protecting myocardium from infarction, preserving myocardial contractility and reducing cardiovascular events. The objective of the present study is to assess the pattern of coronary collateral circulation in known cases of coronary artery disease with correlation to age, gender and degree of occlusion. Method: This is a retrospective study done on 200 preoperative angiograms in patients with coronary artery disease. Patients were classified according to age, gender and degree of obstruction in major vessels. Collateral vessels were graded according to the Rentrop classification. Patients with collaterals were further classified on the basis of intensity of collaterals into 3 groups: those with no collateralization (Grade 0), poor collateralization (Grade 1) and those with adequate collateralization (Grade 2 - 3). Results: Collateral development was seen in 175 (87.5%) angiograms. Collaterals were seen in 66% for left anterior descending (LAD), 44.5% for circumflex (LCx) and 70.5% for right coronary artery (RCA) block. Coronary collaterals between LAD and posterior descending artery (PDA) via ventricular septal branches were most common pathways. Adequate collaterals were seen in 53% males and 29.3% females (p < 0.001), 53.14% in patients of age > 50 years and in 32% in cases with age < 50 years (p = 0.014) and 54.8% cases with arterial obstruction > 90%. Conclusion: Collateral circulation between LAD and PDA via ventricular septal branches is the commonest pathway to develop. Although prevalence of LAD occlusion is higher but collaterals develop more for RCA occlusion. Adequate collaterals develop more frequently in males, cases above 50 years and in vessels with >90% obstruction.
Evaluation of Various Crude Extracts of Zingiber officinale Rhizome for Potential Antibacterial Activity: A Study in Vitro  [PDF]
Purshotam Kaushik, Pankaj Goyal
Advances in Microbiology (AiM) , 2011, DOI: 10.4236/aim.2011.11002
Abstract: In vitro antibacterial activity of crude aqueous and organic extracts of rhizome of Zingiber officinaleRoscoe (ginger) was studied against both Gram-negative (Escherichia coli and Salmonella typhi) and Gram-positive (Bacillus cereus, Bacillus subtilis, Staphylococcus aureus and Streptococcus pyogenes) bacterial strains. The present study reveals that the pattern of inhibition varied with the solvent used for extraction and the organism tested. Plant extracts prepared in organic solvents provided more consistent antibacterial activity as compared to aqueous extracts. Methanol extract was the most active against maximum number of bacterial species tested. Gram-positive bacteria were found the most sensitive as compared to Gram-negative bacteria. Staphylococcus aureus was significantly inhibited by almost all the extracts even in very low MIC followed by other Gram-positives. Escherichia coli (a Gram-negative bacterium) was showing the least inhibition with highest MIC values, while Salmonella typhi was found completely resistant. Methanol extract yielded the presence of terpenoids, flavonoids, alkaloids and tannins in phytochemical screening. Results of the present study sign the interesting assurance of designing a potentially active antibacterial agent from Zingiber officinale.
Development of Efficient Fermentation Process at Bioreactor Level by Taguchi's Orthogonal Array Methodology for Enhanced Dextransucrase Production from Weissella confusa Cab3  [PDF]
Shraddha Shukla, Arun Goyal
Advances in Microbiology (AiM) , 2012, DOI: 10.4236/aim.2012.23033
Abstract: The influence of medium ingredients on extracellular dextransucrase production by a new bacterial strain Weissella confusa Cab3 (Genbank Accession Number JX649223) was evaluated using fractional factorial design of Taguchi's orthogonal array. Four metabolism influencing factors viz. sucrose, yeast extract, K2HPO4 and Tween80 were selected to optimize dextransucrase production by W. confusa Cab3 using fractional factorial design of Taguchi methodology. Based on the influence of interaction components of fermentation, least significant factors of individual level have higher interaction severity index and vice versa for enzyme production from Weissella confusa Cab3. Sucrose and yeast extract were found to be the most significant factors which positively influenced the dextransucrase production. The optimized medium composition consisted of sucrose—5%; yeast extract—2%; K2HPO4—1.0%; Tween80—0.5%, based on Taguchi orthogonal array method. The optimized composition gave an experimental value of dextransucrase activity of 17.9 U/ml at shake flask level which corresponded well with the predicted value of 17.54 U/ml by the model. The optimized medium by Taguchi method gave significant (3 fold) enhancement of dextransucrase activity as compared to unoptimised enzyme activity of 6.0 U/ml. The dextransucrase production was scaled up in lab scale bioreactor resulting in further enhancement of enzyme activity (22.0 U/ml).
Duadic Codes over the Ring Fq[u] /<um-u> and Their Gray Images  [PDF]
Mokshi Goyal, Madhu Raka
Journal of Computer and Communications (JCC) , 2016, DOI: 10.4236/jcc.2016.412003
Abstract: Let m ≥ 2 be any natural number and let \"\" be a finite non-chain ring, where \"\" and q is a prime power congruent to 1 modulo (m-1). In this paper we study duadic codes over the ring \"\" and their extensions. A Gray map from \"\" to \"\" is defined which preserves self duality of linear codes. As a consequence self-dual, formally self-dual and self-orthogonal codes over \"\" are constructed. Some examples are also given to illustrate this.
GIS Based Methodology for Groundwater Flow Estimation across the Boundary of the Study Areain Groundwater Flow Modeling  [PDF]
Vijai Singhal, Rohit Goyal
Journal of Water Resource and Protection (JWARP) , 2011, DOI: 10.4236/jwarp.2011.311092
Abstract: Pali district, Rajasthan, India has been facing severe pollution of groundwater due to release of untreated industrial effluent of textile industries into the Bandi River flowing through the Pali city. A groundwater flow and transport modeling exercise has been undertaken by MNIT, Jaipur, India to understand the groundwater flow regime and to study the different scenarios. In the modeling exercise partially penetrating ephemeral rivers have been taken as part of model boundaries wherever more appropriate boundaries were not available in the near vicinity. These boundaries have been considered as constant flow boundaries. Aim of this paper is to present a methodology to calculate the average flux through such boundaries from readily available data such as bore logs and groundwater levels. The study area boundary was divided in to several cross sections and average values of groundwater flow gradients normal to the boundary were calculated for different monsoon and non monsoon seasons for different years. The entire boundary was then regrouped into 8 boundary segments on the basis of average values of gradients for individual line segments and mean gradient values for these line segments were calculated. Values of ground level, bottom elevations of hydros-tratigraphic layers and average water depth were extracted for a number of points on these line segments from the respective layers and these values were used to calculate equivalent horizontal hydraulic conductivity of the multi-layered aquifer system at every point. The Darcy’s law was then used to calculate inflow/outflow per m length of the boundary at each point. The methodology presented here is simple and is based on the assumption that the groundwater level gradients do not change significantly for different seasons and amongst different years which has been validated in the present groundwater modeling study. The paper demonstrates a GIS based methodology to work out inflow/outflow across boundary of a study area in the cases where no flow boundaries in the vicinity of the study area cannot be identified.
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: India has a patriarchal society where men are seen as role models who aresupposed to look after their parents in old age. Giving birth to a girl child is seen by manyas "watering the neighbours' plants" and birth of a male child is looked upon as a featherin the cap with great pride and joy. Female infanticide, or the killing of female babies,was a practice prevailing in India long ago. Though this has now been abolished legally,we find that it is still practised in a different and more sophisticated manner. Females arebeing now being killed even before they are born that we call as female foeticide.
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