Comparative Study of Public-key cryptosystems in Cloud Storage

Cloud storage is a service model in which data is maintained, managed and backed up remotely and made available to users over a network (typically the Internet). Cloud storage can provide the benefits of greater accessibility and reliability. In cloud storage different members can share that data through different virtual machines but present on single physical machine. But the thing is user don’t have physical control over the outsourced data. As a result there is a need of effective method to share data securely among different users. This can be achieved using cryptography, which helps in encrypting the data to be stored in cloud storage to protect against unauthorized access. Here we introduce a public-key cryptosystem which produce ciphertexts of constant size such a way that an systematic assignment of decryption virtue for any number of ciphertexts are possible. The modernity is that one can combine a set of secret keys and make them as mini single key with holding the same ability of all the keys that are formed in each group. This compact aggregate key can be efficiently sent to others or to be stored in a smart card with little secure storage. DOI: 10.17762/ijritcc2321-8169.150314

Comprehensive Review of State-of-the-Art Applications of Artificial Neural Networks in Predicting Concrete Compressive Strength

Concrete compressive strength prediction is a crucial aspect in civil engineering, with applications ranging from structural design to quality control in construction projects. Traditional methods for predicting concrete compressive strength often rely on empirical formulas or physical testing, which may be limited in accuracy or efficiency. In recent years, Artificial Neural Networks (ANNs) have emerged as powerful tools for predicting concrete compressive strength due to their ability to capture complex nonlinear relationships in data. This paper provides a comprehensive review of the state-of-the-art applications of ANNs in predicting concrete compressive strength. It discusses various architectures, training techniques, input parameters, and datasets used in ANN models, as well as their performance compared to traditional methods. Additionally, challenges and future directions in the field are identified to guide further research efforts

Determination of montelukast sodium and levocetirizine dihydrochloride in combined pharmaceutical dosage form by RP-HPLC

A simple, rapid, sensitive and economical method has been developed for the simultaneous determination of montelukast sodium and levocetirizine dihydrochloride in combined tablet dosage form. The method was based on high performance liquid chromatography using zidovudine as an internal standard. The separation was carried out with a Eurosphere 100 C18 column (250×4.6 mm ID, 5 μm) and mobile phase 0.05 % orthophosphoric acid: methanol (10:90 v/v) at flow rate 1.2 ml/min. The UV detection was carried out at wavelength 225 nm.The method was validated statistically and by performing recovery study.Colegio de Farmacéuticos de la Provincia de Buenos Aire

Association between Gender and Plaque Index- A Retrospective analysis of 86,000 patient records over nine months

Dental plaque is the community of microorganisms found on a tooth surface as a biofilm, embedded in a matrix of polymers of host and bacterial origin. If not removed regularly, the biofilm undergoes maturation and the resulting pathogenic bacterial complex can lead to dental caries, gingivitis and periodontitis. Dental plaque is seen in both genders and it depends on each individual’s oral hygiene maintenance, which prevents progression of disease such as gingivitis and periodontitis. The aim of the study is to evaluate the association of gender with the amount of plaque. Retrospective study was conducted using patient records of University hospital. Consecutive case sheets with plaque index records were retrieved. Data was entered in excel and coded, then imported to SPSS. Descriptive statistics and Peasron’s chi square association tests were done. The results were represented in the form of stacked bars. In this study, it was observed that out of 1152 patients, 51% were males and 49% were females. In relation to distribution of plaque index interpretation, out of 1152 patients, 41.44% had good plaque index scores, 33.45% had fair plaque index scores and 25.11% had poor plaque index scores.Plaque index was good for males (22.59%) than females (18.85%). There was no statistically significant association found between gender and amount of plaque (Chi square test=5.266,p= 0.621). Amount of plaque accumulation is more in females with no association between gender and plaque index

Study of Typical Characteristics of Expansive Subgrade With Geotextiles and Cushion Materials

Well-built and maintained roads play a major role in the development of a nation. Hence considerable attention is required towards the widening of roads, their stability and periodic repair works. Since the beginning of modern highways, engineers have strived continuously to produce better pavement at lower cost. Most state highways in the central part of India have problems of foundation due to presence of expansive soil i.e. black cotton soil. For the improvement of such problematic soil, conventional technique of soil stabilization, use of cushion, use of moisture barriers, etc. has been adopted. The main objective of the research work was to study the typical characteristic of expansive soil and to control the swelling of expansive soil below flexible pavements. To achieve this aim work has been carried out with reinforcing geotextile overlain with cushion material. Effect of cushion material on swelling of expansive soil has been investigated alongwith the ability of geotextiles in locked and unlocked condition with cushion material was scrutinized. Better cushioning due to use of flyash can be attributed to pozzolanic activity forming stable compounds. It is observed that the use of flyash as cushion material provides better swelling control as compared to quarry dust. Unlocked geotextiles did not prove as effective as locked textiles with the use of either of the cushion materials. The unlocked textiles proved advantageous with quarry dust but did not prove as advantageous as only flyash. The most important two functions of geotextiles namely separating and reinforcement have been most effectively used in the locked condition. The study was further extended to stabilize the expansive soil with metakaolin. Swell pressure test and UCS results on samples treated using 1% metakaolin provided its effectiveness in controlling the swelling characteristics of expansive soil as well as strength improvement