Mobile code based computing requires development of protection schemes that allow digital signature and encryption of data collected by the agents in untrusted hosts. These algorithms could not rely on carrying encryption keys if these keys could be stolen or used to counterfeit data by hostile hosts and agents. As a consequence, both information and keys must be protected in a way that only au...

A new definition and realization of mobile agent was advanced: task-description-based mobile agent, which is a kind of data package describing the tasks needed to perform on the agent platforms. A secure mobile agent system building on this kind of mobile agent was proposed. By way of using Proxy/Manage Agency to create and dispatch agents, Java 2 security model to protect local resources and t...

Many agent-based systems have been developed over the past decade; however, the security issues are usually not addressed adequately. In order to make the mobile agent paradigm more useful and acceptable for Web and Internet applications, the security considerations should go beyond the protection of basic agent execution environments. In this paper, we present the design of a robust Java-based...

Among the nonantimicrobial agents that are available and useful for the prevention of traveler's diarrhea are bismuth subsalicylate-containing preparations, which can provide a rate of protection of up to 65% when taken 4 times daily. In one study, the probiotic Lactobacillus GG was found to provide 49% protection against traveler's diarrhea, but results with this agent and other probiotics hav...

Francisella tularensis is the causative agent of tularemia and a potential agent of biowarfare. As an easily transmissible infectious agent, rapid detection and treatment are necessary to provide a positive clinical outcome. As an agent of biowarfare, there is an additional need to prevent infection. We made monoclonal antibodies to the F. tularensis subsp. holarctica live vaccine strain (F. tu...

From the angel of environment protection, through analysing the properties of three majority types of sizing agent, such as starch(modified starch), PVA(polyvinyl alcohol) and acrylic size, we attempted to compare the sizing performance indices of several different environment protection sizing agents. We also briefly introduced several printing pastes with research values currently which could...

vinelanidii. The related compounds tested, phenoxyacetic acid, phenylpropionic acid, orthoand parachlorophenoxyacetic acids, inhibited the test organism to lesser degrees. Protection from the inhibition produced by 2 x 10-2 MI phenoxyacetic acid and phenylpropionic acid was afforded by molar ratios of 1: 1 and 2: 1 respectively', magnesium to the agents. Considerable protection, though not comp...

The authors' study of the viscosities of various concentrations of sodium hyaluronate, chondroitin sulfate, and methylcellulose revealed that sodium hyaluronate and methylcellulose are pseudoplastic fluids in contrast to chondroitin sulfate, which is a Newtonian fluid. Pseudoplastic fluids are ideal for maintaining the anterior chamber, since they are more viscous at rest. Intermediate viscosit...

Password plays an important role in online authentication. But it suffer from two interactable problems ,one is password cracking and second is password theft. Password agent mechanism contains strong hashing scheme which provides stronger protection against password theft and password cracking. Password Agent generates strong passwords by enhancing the hash function with a large random salt. T...

In recent studies, hierarchically distributed non-intrusive agent aided transmission line distance relaying protection scheme has been proposed. This scheme is meant to provide the distance relays with situational awareness and improve their robustness against hidden failures. Distance relaying protection scheme is a part of safety critical cyber physical system (in particular, power system) an...