Reveiw of effective data encryption and decryption technique

The requirements of information security within an organization have undergone two major changes in the last several decades. Before the wide spread use of data processing equipment, the security of information  felt to be valuable to an organization was provided primarily by physical and administrative means. The collection of tools designed to protect data and to thwart hacker is computer security. Network security measures are needed to protect data during their transmission. This technique for encryption and decryption process to combine two methods ceaser cipher and transposition cipher, ceaser cipher is one of the substitution techniques. A substitution technique is one in which the letters of plain text are replaced by other letter or by numbers or symbols. if the plaintext is viewed as a sequence of bits, then substitution involves replacing plaintext bit patterns with cipher text bit patterns. The encryption process is two stages first, to convert the given plaintext into cipher text using ceaser cipher text technique, second stage the cipher converted using transposition technique, the final output is cipher text, The Decryption is the reverse process of the Encryption

Survey of incidence of various surface defects in goat and sheep skin in Madras

23,429 goat skins and 37,026 sheep skins were examined to find out the incidence of various surface defects in them. 33.44 percent of goat skins and 14.6 per cent of sheep skins were found to be affected in quality. Major defects common to both goat and sheep skins were abscess, fire-mark and psoroptosis. In addition to the above common defects demodecosis and sheep pox appreciably deteriorated the quality of goat and sheep skins respectively. Seasonal variation in the incidence of the major defects were also studied

5-[1-(4-Meth­oxy­phen­yl)-2-nitro­but­yl]-4-phenyl-1,2,3-selenadiazole

In the title compound, C19H19N3O3Se, the selenadiazole ring is essentially planar (r.m.s. deviation = 0.001 Å). The heterocyclic ring makes dihedral angles of 50.2 (2) and 76.3 (9)°, respectively, with the meth­oxy­phenyl and phenyl rings

5-(2-Nitro-1-phenyl­but­yl)-4-phenyl-1,2,3-selenadiazole

In the title compound, C18H17N3O2Se, the selenadiazole ring is planar [maximum deviation = 0.012 (2) Å for the ring C atom bearing the phenyl substituent]. The dihedral angle between the selenadiazole ring and the attached benzene ring is 46.5 (1)°. There is one short intra­molecular C—H⋯Se contact

Diethyl 1,1-dioxo-3,5-bis­(pyridin-2-yl)-1λ6,4-thio­morpholine-2,6-dicarbox­ylate

The title compound, C20H23N3O6S, crystallizes with two crystallographically independent mol­ecules in the asymmetric unit. The thio­morpholine ring in both mol­ecules adopts a chair conformation. The crystal structure is stabilized by C—H⋯O inter­actions. The amino groups are shielded and, as a result, these groups are not involved in hydrogen bonding

Ethyl 2-[N-(2-formyl­phen­yl)benzene­sulfonamido]acetate

In the mol­ecule of the title compound, C17H17NO5S, the two aromatic rings are oriented at an angle of 30.13 (10)°. The ethyl acetate group assumes an extended conformation. Mol­ecules are linked into C(7) chains running along the a axis by inter­molecular C—H⋯O hydrogen bonds, and the chains are crosslinked via C—H⋯π inter­actions, with the sulfonyl-bound phenyl ring acting as an acceptor

PRODUCTION OF BIOGAS USING FOOD WASTE FROM SRIT HOSTEL

Biogas is typically a gas produced by the anaerobic digestion of biodegradable materials. One of the most promising processes for the energetic transformation of waste is the anaerobic digestion of waste to produce biogas. Food waste, which has become one of global concerns because of its massive amount, contains high organic content, which is used by the microbes as nutrients. The present project aims at production of biogas using food waste generated from SRIT hostel. Our institution has three hostels and two messes, cooking food for more than 1000 students, and there is large quantity of food waste generated daily. The option available for the management of this huge waste is animal feed. So this large quantity of food waste generated should be utilized for better purposes. A survey is carried out and it was found that average food waste generated per person is 243g. The set up consists of a digester which is of 2.75 litres capacity and it was filled with 2/3rd of its capacity with mixed food waste and cow dung in 1: 1 proportion. The initial and final characteristics of the feedstock, such as pH, total solids, volatile solids, C/N ratio and COD are analyzed. The volumetric yield of biogas is noted at regular intervals using water displacement method. The cumulative quantity of biogas produced for 31 days is 565 cm3 per 900 gram of feedstock

Rapid multi sample DNA amplification using rotary-linear polymerase chain reaction device (PCRDisc)

Multiple sample DNA amplification was done by using a novel rotary-linear motion polymerase chain reaction (PCR) device. A simple compact disc was used to create the stationary sample chambers which are individually temperature controlled. The PCR was performed by shuttling the samples to different temperature zones by using a combined rotary-linear movement of the disc. The device was successfully used to amplify up to 12 samples in less than 30 min with a sample volume of 5 μl. A simple spring loaded heater mechanism was introduced to enable good thermal contact between the samples and the heaters. Each of the heater temperatures are controlled by using a simple proportional–integral–derivative pulse width modulation control system. The results show a good improvement in the amplification rate and duration of the samples. The reagent volume used was reduced to nearly 25% of that used in conventional method

Experimental Investigation for Detecting Mitotic Cells in Medical Image using an Automated Algorithm

Cancer of the breast is a malignant tumour that originates in the cells of the breast tissue. It is by far the most common kind of cancer found in females around the world, with a projected 2.3 million new cases will be discovered in the year 2020 alone. It is projected that one in eight women will be diagnosed with breast cancer at some point in their life, despite the fact that breast cancer can also occur in men. Breast cancer is a complex condition that can arise from a diverse set of factors, express itself in a variety of ways, and can be treated in a variety of ways. Ductal carcinoma in situ, invasive ductal carcinoma, and invasive lobular carcinoma are all different subtypes. Both the available treatment options and the expected outcome of breast cancer are very variable depending on the particular subtype of the illness. Breast cancer risk factors include drinking alcohol and not getting enough exercise, as well as getting older, having a family history of the disease, having genetic mutations, being exposed to estrogens, and having a family history of the disease. There is not always a connection between having risk factors and developing breast cancer, despite the fact that there can be a link between the two. The prognosis and treatment options for breast cancer are highly dependent on the stage of the disease at the time of diagnosis. During staging, the extent to which the cancer has spread throughout the body and how far it has progressed are both measured. The TNM system, the IAFCM system, the ACM system, and the MPIG system are just few of the staging systems that are used to classify breast cancer. These staging systems consider not only the size of the tumor but also whether or not lymph nodes are involved and whether or not distant metastases are present. The severity of breast cancer symptoms can vary widely, depending not only on the subtype of the disease but also on how far along it has progressed. Alterations in the size or shape of the breast, discharge from the nipple, and alterations in the skin of the breast (such as redness or dimpling) are all common indications. On the other hand, not all cases of breast cancer present themselves in a visible manner, and mammography and other forms of routine screening may be able to detect some of these cases. Options for treating breast cancer vary depending on the patient's condition and the stage of the disease, as well as the patient's overall health and their preferences towards therapy. Common examples of medical interventions include surgery, radiotherapy, chemotherapy, hormone therapy, and targeted therapy. Other examples include. In certain cases, it may be appropriate to participate in more than one form of treatment

In silico Structural and Functional Characterization of a Hypothetical Protein from Stenotrophomonas maltophilia SRM01

Stenotrophomonas maltophilia is a low-virulence opportunistic pathogen that causes human infections, especially in profound ill patients. Even if the bacterial genomes seem understood, the activities of many proteins are unknown. The purpose of our current research is to unravel the functional characteristics i.e. functional domain search and valuable regions of a hypothetical protein that would aid in the identification of potential drug targets in Stenotrophomonas maltophilia. The hypothetical protein of S.maltophilia was located and annotated using different in silico techniques. Our target protein was predicted to be Transcrip Reg superfamily YebC/PmpR based on motif and domain analysis by functional annotation tools. The regulator proteins of the YebC family are part of a vast collection of widely conserved hypothetical proteins with unclear functions. Examining and reviewing the function of YebC family protein, they repress Quorum sensing by directly binding to the promoter region of QS master regulator pqrS. It has also been reported that T3SS expression is regulated by YebC, to activate the virulence expression direct interaction with one of the T3SS promoters is needed