Awakash Mishra

An Innovative Approach to Enhance the Security of Data Encryption Scheme

In this paper, we proposed a new scheme to enhance the security of data Encryption scheme. With cascading of data encryption standard in three times, we become able to counter the famous meet in middle attack in double and triple data encryption standard. We show how the random key stream can be used to create lifetime supply of keys for one time pads. Here we provided the practical approach that we can use to set up our own one-time pad encryption. For simplicity lets study how randomized key can be achieved. Random key generation can simply be obtained via use of permutation. Permutation technique can be used in conjunction with other technique includes substitution, encryption function etc. for effective performance. The goal of this article to show how the one-time pad encryption technique can be achieved by the suitable combination of these techniques.

Effect of Temperature Rate Term while Predicting Thermal Ratcheting of a Thin Cylinder due to Cyclic Temperature Variation

The occurrence of progressive plastic deformation due to ratcheting under thermal cycling governs the integrity and life of industrial components such as the main vessel of sodium cooled fast reactors (SFR). Present work firstly discussed a constitutive model with temperature rate terms (TRT) to highlight the effect of thermal load rate (TLR) during the ratcheting behavior of the two-bar mechanical system (SS 316 LN). The influence of TLR is studied for various stress controlled cyclic thermo-mechanical loadings considering temperature dependent material parameters. Secondly, the approach is used to reveal the effect of TRT while predicting thermal ratcheting of a thin cylinder caused by change in peak temperature during temperature front movement. Such loading situations are more relevant to the SFR when the pool temperature varies with free-level variations. Visco-plastic formulation with and without TRT is used for analysis, which is validated by comparing the published experimental and numerical results.

Prevalence and bacterial etiology of subclinical mastitis in goats reared in organized farms

Aim: Assessment of the status of subclinical mastitis (SCM) in Jamunapari and Barbari goats in Indian organized farms, the involvement of bacterial pathogens and their sensitivity to antibiotics. Materials and Methods: A total of 181 composite milk samples were aseptically collected from the apparently healthy Barbari (n=95) and Jamunapari (n=86) goats. The California mastitis test (CMT) and somatic cell count (SCC) were used to diagnose SCM. The milk samples with CMT scores of 0 and +1 were considered as negative, while the samples with the score of +2 or +3 were taken as positive, and further, the positive samples were used for the bacteriological examination. An antibiotic sensitivity test was performed by disk diffusion method using seven commercially available antibiotic discs. Results: All the samples having CMT score of +2 or +3 demonstrated SCC more than 1 million. Overall, the prevalence of SCM in the goats was assessed as 19.89% (36/181). The prevalence of SCM in Barbari and Jamunapari goats was found as 24.21% (23/95) and 15.12% (13/86), respectively. Out of 11 isolates of Staphylococci, 9 isolates were identified as coagulase-negative Staphylococci (CNS), whereas 2 isolates were found as Staphylococcus aureus. The identified bacterial isolates (n=30) did not show antibiotic resistance. Conclusion: The current investigation showed the considerable prevalence of SCM among Jamunapari and Barbari goats which may have a negative impact on quantity and quality of the milk. CNS was found as the most prevalent cause of SCM in the goats. Negligible antibiotic resistance was found among the identified udder pathogens.

Molecular etiopathology of naturally occurring reproductive diseases in female goats

Aim: The aim of the present study was to investigate the molecular etiopathology of occurrence of reproductive diseases in female goats. Reproductive diseases in goats account for major economic losses to goat farmers in terms of valuable loss of offspring and animal productivity. Materials and Methods: A total of 660 female genitalia were examined for pathological conditions (macroscopic and microscopic lesions). The etiopathological study was carried out for the presence of pathogenic organisms such as Brucella, Chlamydia, and Campylobacter in the uterus and ovary. Based on the microscopic lesions, suspected samples were subjected to diagnostic polymerase chain reaction (PCR) for various etiological agents employing 16srRNA genus specific primers for Campylobacter and Chlamydophila and OMP31 gene-based PCR for Brucella melitensis and nested PCR using ITS-1 gene primers for Toxoplasma gondii. For Brucella suspected samples, immunohistochemistry (IHC) was also performed. Results: In studied female genitalia, 108 (16.30%) showed gross abnormalities with overall 23.32% occurrence of pathological conditions (macroscopic and microscopic lesions). Pathological involvement of the uterus was the highest 68 (62.96%), followed by the ovaries 27 (25%) and other organs. Major uterine condition observed was endometritis (5.60%). In uterine infections, 35 (5.30%) samples were found positive for Campylobacter spp., 12 (1.81%) samples for B. melitensis, and 3 (0.45%) samples were positive for Chlamydophila spp. Among the samples positive for B. melitensis by PCR, 3 were found positive by IHC also. Corynebacterium ovis was detected by PCR using specific primers in a case of hydrosalpinx. It was concluded that many pathological lesions in female genitalia of functional significance play a major role in infertility in goats. Conclusion: The present study concluded that many pathological lesions in female genitalia of functional significance play a major role in infertility in goats.

Retro-bulbar cyst of Coenurus gaigeri in Barbari goats

Two adult Barbari goats were presented to the Division of Animal Health of the Institute with the history of unilateral protrusion of the left eye ball, blepharitis and congestion of the conjunctival membrane. Physical and ultrasonographical examination revealed large fluctuating fluid filled bladder with distinct dimensions. The cysts were successfully removed along with its membrane and parasitological examination revealed it as a Coenurus gaigeri, the intermediate stage of T. multiceps gaigeri. The present report describes the retro-bulbar cyst of Coenurus gaigeri in two Barbari goats. This is the first report of retro-bulbar cyst of Coenurus gaigeri in goats.

Patho-morphological study of a spontaneous case of mycotic pneumonia in sheep

Mycotic pneumonia was diagnosed in a three months old lamb based on gross, histopathology and special staining studies. Clinically, the animal was apparently healthy but on post-mortem examination, lungs revealed small, multiple, coalescing nodules embedded in the parenchyma. Histological sections of lungs revealed diffuse necrotic and granulomatous inflammation with numerous, branched filamentous PAS positive fungal hyphae surrounded by lymphocytes and neutrophils. This finding is confirmatory in the diagnosis of multifocal embolic mycotic pneumonia with intralesional identification of aseptate branched fungal hyphae characteristic to Zygomycetes spp. from histological sections of lungs in absence of isolation and other confirmatory tests.

An Approach to Secure Data with Authentication & Integrity using EHDES over Noisy Channel

Today’s era of communication is too much important. An effective communication requires major factors like: Authentication, Confidentiality, Integrity, etc. In this current paper, we introduce a complete security that provides by the combination of stegnographic approach and cryptographic schemeEHDES (Enhanced Data Encryption Standard). Stagnographic approach facilitates data hiding and EHDES encrypts the data to be transmitted. A lossless compression provides us integrity. Fuzzy error correction provides error less message over noisy channel.