Novel Stepped Impedance Microstrip Bandpass Filters for Radar Applications

In this paper, the design and realization of A Novel Microstrip Stepped Impedance Resonator Bandpass Filters with two selected center frequencies (f0) 12GHz and 16GHz presented. For The design of Band pass Filters “Rogers 6035HTC" substrate material with relative dielectric constant of 3.55, Standard thickness of 0.020” (0.508mm), thickness of pec is 0.035mm and simulated on High Frequency System Simulator (HFSS). Both the designed filters performances are discussed and compared with literature. The designed Stepped Impedance microstrip BPFs have insertion loss of <1dB with the optimal average performance of 37% and 32% FBW, and return losses are 47 dB and 32dB, which is reported better when compared with the reference designs

A Survey: Security Challenges of Vanet And Their Current Solution

Vehicles have a very crucial role in our routine life; we use different kinds of transportation in our living world, massive increasing vehicle on the road insisting serious problem such as traffic jam, vehicle congestion, road accidents, the demand for more fuel etc., to subdue the all those problems, the technology has used which is called VANET (Vehicular ad-hoc networks) VANET is self-organized wireless network when it has demanded to make communication between vehicles to vehicles and vehicles to infrastructure. VANET successfully implements the intelligent transportation system (ITS), even the vehicles having short-range networks. Due to the rapid change of network topology, the VANET installation is challengeable on the vehicles. To give a safe drive and reduce car accidents, the communication among drivers of vehicles and roadside devices makes sure that should be authenticated; any wrong modification (or) correction in real-time communication may create system failure and affect road safety. This article provides a brief description of various challenging issues in VANET and presents some existing solutions for these problems. Later, we discussed the current status of research and future goals. With this article, researchers and academicians can have a more detailed VANET and research trends in this emerging field

Alzheimer Disease Detection of 3D-CNN with SE-Net Model using SVM Classifier

Alzheimer disease is a fatal progressive neurological brain disorder. Earlier detection of Alzheimer's disease can help with proper treatment and prevent brain tissue damage. In this work we proposed two methods. First, proposed connected median filter using PSO feature extraction from MRI images and Analysis of Alzheimer’s diseases state by using 3D-CNN based SE-Net. In the first phase, the algorithm first normalizes and removes skull from the MRI images. Connected median filter using Particle Swarm Optimization algorithm is used to partition the image into white matter (WM), grey matter (GM) and black holes (BH). The relevant diagnostic features are extracted from the segmented image component. The classifier is trained by the training data to predict the test data. The features are defined to construct classification model by using Support Vector Machine with Squeeze- Excitation block. Here, database contains total of 1000 images which are resized into 350 × 350 without loss of information. Deep Learning demands large number of images and its strength was increased as per requirement by augmentation technique. In the first phase of the method takes 1000 images of different features are selected to train SVM classifier and the accuracy obtained is 98.37%  and contribution of this work is classification of images into categories such as Alzheimer (AD) and normal. First phase of work emphasized program specific applications to extract features.  In the second phase the CNN multiple layers which are studied from lower level to the higher-level image characteristics

Food Patterns in Tamilmagan Novels

“Food is medicine; Medicine is Food”The food system that prevailed among our Tamils ​​who were living like this has been processed and prepared since ancient times. We will discuss these news and diets in detail in this article. A balanced diet is the key to a disease-free life. It is said that if you eat good food and eat good food, you will eliminate the food that is bad for the body and eat food that is good for the body and mind, not only the body will not get sick.  It means that survival without food is rare; "You who gave the ransom, you who gave life,The pindham of food before the bill” – (puṟanāṉuṟu) We can see what has been explained. The purpose of this article is to study the ancient Tamil food systems and their processing methods based on literature and data with the help of Tamil Man novels

Case series of Foley’s induction in patients with previous caesarean

Background: The objective of this study was to study the efficacy of intracervical Foley’s catheter induction in women with previous history of caesarean section and to evaluate the maternal and fetal outcome of these pregnancies.Methods: It is a prospective analysis of 30 patients whose labour was induced by intracervical Foley’s bulb for VBAC delivery. This study was conducted in KIMS, Hubli. Age, parity, indication of previous caesarean, inter-pregnancy interval and outcome of index pregnancy were studied in detail and analysed.Results: 30 women with previous history of caesarean were included into the study. Various indications of induction during index pregnancies were- post-datism, IUGR, intra-uterine foetal demise and severe pre-eclampsia and eclampsia. Out of 30 women, 18 (60%) had successful VBAC delivery, 12 (40%) underwent repeat LSCS. 19 cases needed augmentation of labour. Indications for caesarean section were failed induction in 5 (16.6%) women, threatened scar rupture in 3 (10%), non-progress of labour in 2 (6.6%) and meconium stained amniotic fluid in 2 (6.6%). No cases of uterine rupture or maternal mortality was noted in the study.Conclusions: In our study the rate of vaginal birth was 60% without major maternal complications. Hence intracervical Foley’s catheter is an effective, safe and acceptable for labour induction in women with previous caesarean

ISOLATION AND SCREENING OF ANTIBIOTIC PRODUCING ACTINOMYCETES FROM GARDEN SOIL OF SATHYABAMA UNIVERSITY, CHENNAI

Objectives: To isolate and screen Actinomycetes with anti bacterial and antifungal activity from garden soil samples of Sathyabama University, Chennai.Methods: Six soil samples were collected, serially diluted and plated on starch casein agar supplemented with nalidixic acid and cyclohexamide for inhibition of bacteria and fungi, respectively. Primary screening of actinomycetes isolates was done by following cross streak method against test organisms. Submerged fermentation was followed for the production of crude antibiotics. Agar well diffusion method was done to determine the antimicrobial activity of the crude extract. The MIC also quantified for the crude extract by microtiter plate assay. The promising isolate was characterized by conventional methods.Results: On primary screening 13 out of 22 actinomycete isolates (59%) showed potential antimicrobial activity against one or more test bacteria and/or fungus.  The isolate BN8 shows antagonistic activity against all the tested bacteria and fungi, isolates BN5 and BN16 were active against only bacteria not fungi, and Isolate BN2 was active against all tested fungi. The zone of inhibition was measured by using the crude extracts of all the four isolates. The crude extract produced by isolate BN8 showed zone on inhibition against all the tested bacterium in 100 µg/ml against Pseudomonas aeroginosa (22mm), Klebsiella pneumonia (25mm), Bacillus cereus (20mm), Staphylococcus aureus (22mm),  Escherichia coli (15mm),  Aspergillus flavus (14mm),  Aspergillus niger (20mm),   Aspergillus fumicatus (10mm) respectively. The crude extracts of isolates BN2, BN5, BN16 were not exhibited any zone of inhibition against the test microbes on agar well diffusion assay. The MIC of crude extract against Pseudomonas aeroginosa (50 μg/ml), Staphylococcus aureus(25 μg/ml), Klebsiella pneumonia (25 μg/ml) and Bacillus cereus(25 μg/ml) . The MIC value of the crude extract against the bacterium Escherichia coli was 12.5 μg/ml. The MIC of 12.5 μg/ml was observed in the crude extract against Aspergillus flavus, 25 μg/ml against Aspergillus niger, and 50 μg/ml against Aspergillus fumicatus respectively.Conclusion: This groundwork concluded that the soil samples of Sathyabama University have actinomycetes with metabolites inhibits bacterial and fungal pathogens. One of the promising isolate was identified which active against the test bacteria and fungi. The crude metabolite exhibits very large zone of inhibition when compared to the control antibiotic. The type of antimicrobial agents produced by the isolate and the phylogenic relationship of the isolate has to be investigated as well

Comparative study of mifepristone and misoprostol versus misoprostol alone in induction of labour in late intrauterine fetal death

Background: Intrauterine fetal death is most undesirable consequence of pregnancy and stressful condition for women and family and for health professional. Naturally, majority of women (over 90%) go in for spontaneous labour and deliver within 3 weeks of intrauterine death. Prolonged retention of dead fetus in utero has complications like DIC, psychological stress and infection. Various methods are available to induce labor in intrauterine fetal death. One such regimen is medical management using a combination of Mifepristone and Misoprostol. The objective of this study was to compare efficacy and safety of combination of mifepristone and misoprostol versus misoprostol only in induction of labour in late intrauterine fetal death.Methods: A prospective study was carried out in KIMS, Hubli between Jan 2014 to Dec 2015.Data from 100 women with intrauterine fetal death between gestational age of 24-42 weeks were analysed. They were divided into 2 groups of 50 each. Group I received single oral dose of 200mg mifepristone followed 24 hours later with oral misoprostol (100µg-50µg) every 4 hourly. Group II received only misoprostol. Outcomes were measured in terms of induction to delivery interval and number of misoprostol doses required.Results: Mean induction to delivery interval in Group I was 8.3 hours versus13.4 hours in Group II. Induction delivery interval was shorter in combined regimen. Total dose of misoprostol was also less in Group I.Conclusions: Both regimens are safe for induction of labour in late intrauterine fetal death. However, the induction delivery interval and dose of misoprostol required was decreased in combination regimen

ISOLATION AND IDENTIFICATION OF PHYTOPATHOGENIC FUNGI FROM INFECTED PLANT PARTS

Objective: The present study deals with the isolation and identification of phytopathogenic fungi. The fungal isolates were Alternaria spp (Tomato early blight), Fusarium oxysporum (Fusarium wilt), Fusarium solani (daming off and root rot), Aspergillus flavus (Ear rot) and Collectotricumspp (Anthracnose).Methods: They were isolated from infected plant parts and were identified on the basis of colony morphology andlacto phenol cotton blue (LPCB) stains were used to identifymicroscopic examination of spore structures. Pure cultures of the isolates were sub cultured and transferred onto differential media; potato dextrose agar, malt extract agar, czapek yeast extract agar and czapek dox agar for species identification using macro morphological characteristicsThe morphological characteristics of these fungal elements showed various kinds of spores have been identified up to genus/species level.Results: This study proves rapid and less expensive techniques to validate a primary alarm of contamination.Conclusion: The fivefungus which were isolated from different plant parts were very effective in distruction of the plant and found that the producionwere reduced due to the infection. This rapid and less expensive techniques to validate a primary alarm of contamination

ENHANCING SECURITY IN IoT PLATFORM USING SECURE AUTHENTICATION PROTOCOL

In recent years IoT is becoming the trending technology which is playing a major role inbusiness, health care, military applications. Wireless communications are highly vulnerableto security threats as anything connected to internet are prone to cyberattacks and place forhackers. Various challenges in IoT are causing security threats and not ensuring End-to-Endencryption during transmission of information. Currently most IoT devices use default logincredentials and not secured with better configurations and protocols which paves way forcyberattacks. Advanced security standards cannot be employed for all IoT devices. Thispaper proposed a secure authentication protocol for the IoT platform for ensuring securityamong IoT devices which keeps track of security threats. An evaluation of the proposedprotocol is presented which proves that the protocol is able to address various securitythreats