3,877 research outputs found
The SECURE collaboration model
The SECURE project has shown how trust can be made computationally tractable while retaining a reasonable connection with human and social notions of trust. SECURE has produced a well-founded theory of trust that has been tested and refined through use in real software such as collaborative spam filtering and electronic purse. The software comprises the SECURE kernel with extensions for policy specification by application developers. It has yet to be applied to large-scale, multi-domain distributed systems taking different application contexts into account. The project has not considered privacy in evidence distribution, a crucial issue for many application domains, including public services such as healthcare and police. The SECURE collaboration model has similarities with the trust domain concept, embodying the interaction set of a principal, but SECURE is primarily concerned with pseudonymous entities rather than domain-structured systems
Development of flying qualities criteria for single pilot instrument flight operations
Flying qualities criteria for Single Pilot Instrument Flight Rule (SPIFR) operations were investigated. The ARA aircraft was modified and adapted for SPIFR operations. Aircraft configurations to be flight-tested were chosen and matched on the ARA in-flight simulator, implementing modern control theory algorithms. Mission planning and experimental matrix design were completed. Microprocessor software for the onboard data acquisition system was debugged and flight-tested. Flight-path reconstruction procedure and the associated FORTRAN program were developed. Algorithms associated with the statistical analysis of flight test results and the SPIFR flying qualities criteria deduction are discussed
Nitrogen Inputs to Rhode Island Coastal Salt Ponds - Too Much of a Good Thing
Reviews concerns about increase of nitrogen in Rhode Island salt ponds as a result of human activities
Activity budgets, food habits and habitat selection of the Porcupine Caribou Herd during the summer insect season
An improved bound for the rigidity of linearly constrained frameworks
We consider the problem of characterising the generic rigidity of bar-joint
frameworks in Rd in which each vertex is constrained to lie in a given a ne subspace.
The special case when d = 2 was previously solved by I. Streinu and L. Theran in 2010
and the case when each vertex is constrained to lie in an a ne subspace of dimension t,
and d t(t 1) was solved by Cruickshank, Guler and the rst two authors in 2019. We
extend the latter result by showing that the given characterisation holds whenever d 2t
Plant cover, soil temperature, freeze, water stress, and evapotranspiration conditions
There are no author-identified significant results in this report
Plant cover, soil temperature, freeze, water stress, and evapotranspiration conditions
There are no author-identified significant results in this report
AgRISTARS: Early warning and crop condition assessment. Plant cover, soil temperature, freeze, water stress, and evapotranspiration conditions
Emissive (10.5 to 12.5 microns) and reflective (0.55 to 1.1 microns) data for ten day scenes and infrared data for six night scenes of southern Texas were analyzed for plant cover, soil temperature, freeze, water stress, and evapotranspiration. Heat capacity mapping mission radiometric temperatures were: within 2 C of dewpoint temperatures, significantly correlated with variables important in evapotranspiration, and related to freeze severity and planting depth soil temperatures
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