Results 261 to 270 of about 1,780,158 (303)
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Reflex-mediated enhancement of airway protective mechanisms
The American Journal of Medicine, 2000The upper esophageal sphincter (UES) and lower esophageal sphincter (LES) comprise the basal mechanisms against entry of gastric content into the aerodigestive tract and the airway. There are, however, other mechanisms referred to here as "response mechanisms" that become activated after certain stimulation, such as distention of the esophagus or ...
R, Shaker, W J, Hogan
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Discrimination Between Protective and Enhancing HIV Antibodies
AIDS Research and Human Retroviruses, 1990Most attempts to produce a vaccine against HIV-1 infection are utilizing envelope protein components. Hypothetically such vaccine candidates could stimulate production of antibodies that enhance HIV-1 infection via the macrophage route of entry and, consequently, cannot be detected in the conventional neutralization assay.
JACKY BERNARD +10 more
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Dietary fibres may protect or enhance carcinogenesis
Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 1999Dietary fibre (DF) is widely considered to protect against cancer, especially colorectal cancer. However, a large prospective epidemiological study has shown no apparent effect of DF intake on the development of colorectal cancer. We suggest that this may be because the term DF represents a wide range of materials, some able to protect, but some able ...
P J, Harris, L R, Ferguson
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Enhanced protection security using system integrity protection scheme (SIPS)
2016 IEEE Power and Energy Society General Meeting (PESGM), 2016Events such as faults, loss of load or generation may cause unwanted relay operations which initiate cascade tripping leading to system collapse. Security of power system protection is a major concern for utilities. A System Integrated Protection Scheme (SIPS) based approach is proposed for improving security of protection operations. Identification of
Pratim Kundu, Ashok Pradhan
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Secure Bit Enhanced Canary: Hardware Enhanced Buffer-Overflow Protection
2008 IFIP International Conference on Network and Parallel Computing, 2008Piromsopa and Enbody (2006) proposed Secure Bit, an architectural approach to protect against buffer-overflow attacks on control data (return-addresses and function pointers). This paper explores the possibility of extending Secure Bit to protect non-control data (variables, pointers and arrays). A hardware bit, provided by Secure Bit, helps preserving
Krerk Piromsopa, Sirisara Chiamwongpaet
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Enhanced Protection Security Using the System Integrity Protection Scheme (SIPS)
IEEE Transactions on Power Delivery, 2016Events, such as faults, loss of load, or generation may cause unwanted relay operations which initiate cascade tripping leading to system collapse. Security of power system protection is a major concern for utilities. A system integrated protection scheme-based approach is proposed for improving the security of protection operations.
Pratim Kundu, Ashok Kumar Pradhan
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Out-of-step protection enhancements
Eighth IEE International Conference on Developments in Power System Protection, 2004Power systems are subjected to a wide range of small or larger disturbances during operating conditions and they are designed to survive disturbances caused by faults, loss of a large generator, or line switching. The power system typically adjusts to these disturbances and continues to operate satisfactorily and within the desired bounds of voltage ...
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Protection Functionalities in Smart Meters to Enhance Distribution System Protection
2018 IEEE Innovative Smart Grid Technologies - Asia (ISGT Asia), 2018Penetration of Distributed Generations (DGs) has made traditional distribution protection schemes mostly ineffective. Sophisticated protection schemes cannot be implemented using fuses, reclosers and Miniature Circuit Breakers (MCBs). Limited numbers of overcurrent relays are used in distribution systems.
Asha Radhakrishnan, Sarasij Das
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An adaptive distance relay protection scheme for enhanced protection security
2016 IEEE 6th International Conference on Power Systems (ICPS), 2016The advantage of distance relay to provide remote backup protection is a matter of concern to power system security under system stressed conditions. The zone 3 of the distance relay is prone to mal-operate under well known system stresses such as power swing, load encroachment and voltage stress; causing undesired relay operation which may further ...
Prashant Gawande +3 more
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Comanagement Practices Enhance Fisheries in Marine Protected Areas
Conservation Biology, 2010Abstract: Fishing activities worldwide have dramatically affected marine fish stocks and ecosystems. Marine protected areas (MPAs) with no‐take zones may enhance fisheries, but empirical evidence of this is scant.
GUIDETTI, Paolo, CLAUDET, JOACHIM PAUL
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