1,172 research outputs found

    Inmarsat's Worldwide Mobile Satellite Services: Today and Tomorrow

    Get PDF
    Mobile-satellite communications, now available worldwide to maritime, aeronautical and land-mobile users, is an indispensable component of the fundamental evolution in mobile communications now in progress. Inmarsat is leading the mobile satellite evolution in the 90s through a wide-ranging portfolio of services, characterised by increasing portability through reduced weight and size of terminals, continuing reduction in cost of terminals and usage, greater integration with terrestrial telecommunications infrastructure, and improved spectrum utilisation. This paper describes the status of existing Inmarsat mobile satellite services, new services under implementation for introduction in the near-term, and also the longer-term plans including: by end of the decade, hand-held satellite phone

    Analysis of SQL Injection Detection Techniques

    Get PDF
    SQL Injection is one of the vulnerabilities in OWASPs Top Ten List for Web Based Application Exploitation.These types of attacks takes place on Dynamic Web applications as they interact with the databases for the various operations.Current Content Management System like Drupal, Joomla or Wordpress have all the information stored in their databases. A single intrusion into these types of websites can lead to overall control of websites by the attacker. Researchers are aware of the basic SQL Injection attacks but there are numerous SQL Injection attacks which are yet to be Prevented and Detected. Over here, we present the extensive review for the Advanced SQL Injection attack such as Fast Flux Sql Injection, Compounded SQL Injection and Deep Blind SQL Injection. We also analyze the detection and prevention using the classical methods as well as modern approaches. We will be discussing the Comparative Evaluation for prevention of SQL Injection

    A Theoretical Study on the Operation Principle of Hybrid Solar Cells

    Get PDF
    In this work, the operation mechanism of hybrid solar cells is studied explicitly. The excitation, diffusion and dissociation of singlet and triplet excitons and charge transport of free charge carriers are studied and their corresponding rates are calculated for a flexible P3HT:SiNW hybrid solar cell. The rates are found to be faster for singlet than triplet excitons. Possible loss mechanisms in hybrid solar cells have also been highlighted

    EVALUATION OF ANTI-ASTHMATIC ACTIVITY OF CAPPARIS DECIDUA

    Get PDF
    Objective: The present study was conducted to determine the anti-asthmatic activity of Capparis decidua.Methods: The acute oral toxicity study was conducted as per OECD guidelines, and the extract was proved to be safe up to the dose of 2000 mg/kg.The anti-asthmatic activity of C. decidua was evaluated using various experimental models such as histamine-induced bronchoconstriction in guineapigs and milk-induced leukocytosis in mice, histamine-induced bronchospasm in guinea pigs, studies on pre convulsive time and milk-inducedleukocytosis in mice, studies on blood.Results: Antihistaminic drugs Chlorpheniramine maleate and ethanolic extract of C. decidua significantly protected the guinea pigs against histamineinducedbronchospasm. The ethanolic section of C. decidua has dramatically prolonged the latent period of convulsions compared to control. Ethanolicextract of C. decidua suppresses the milk-induced leukocytosis by stabilizing the oxidative stress in the surrounding tissue.Conclusion: The results obtained in the above study suggest the ethanolic extract of C. decidua possesses significant anti-asthmatic activity
    corecore