The design of ilities in System-of-Systems (SoS) architecture is a key means to manage changes and uncertainties over the long life cycle of an SoS. While there is broad consensus on the importance of ilities, there is generally a lack of agreement on what they mean and a lack of clarity on how they can be engineered. This article presents the DSTA Framework for Managing SoS Ilities, which cohe...

The bacterial SOS stress-response pathway is a pro-mutagenic DNA repair system that mediates bacterial survival and adaptation to genotoxic stressors, including antibiotics and UV light. The SOS pathway is composed of a network of genes under the control of the transcriptional repressor, LexA. Activation of the pathway involves linked but distinct events: an initial DNA damage event leads to ac...

Plant phenology is changing because of recent global warming, and this change may precipitate changes in animal distribution (e.g., pests), alter the synchronization between species, and have feedback effects on the climate system through the alteration of biogeochemical and physical processes of vegetated land surface. Here, ground observations (leaf unfolding/first leaf separation of six deci...

The bacterial SOS regulon is strongly induced in response to DNA damage from exogenous agents such as UV radiation and nalidixic acid. However, certain mutants with defects in DNA replication, recombination, or repair exhibit a partially constitutive SOS response. These mutants presumably suffer frequent replication fork failure, or perhaps they have difficulty rescuing forks that failed due to...

Electrical power system operators (SOs) are free to realize grid operations according their own strategies. However, because resulting flows also depend on the actions of neighboring SOs, appropriate coordination is needed improve states from an overall perspective and individual SO perspective. In this paper, a new method presented that preserves data integrity SOs independent operation grids....

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The number of Sensor Observation Service (SOS) instances available online has been increasing in the last few years. The SOS specification standardises interfaces and data formats for exchanging sensor-related information between information providers and consumers. SOS in conjunction with other specifications in the Sensor Web Enablement initiative, attempts to realise the Sensor Web vision, a...

Activity recognition plays an important role in several researches. Nevertheless, the existing researches su↵er various kinds of problems when human has a di↵erent lifestyle. To address these shortcomings, this paper proposes the activity log in the context-aware infrastructure ontology in order to interlink the history user’s context and current user’s context. In this approach, the location-b...

The Department of Defense and its contractors are currently facing unprecedented challenges in planning projects involving groups of systems integrated into one large system of systems (SOS). These challenges are intensified by the fact that these systems tend to be heavily software-dependent. Often planners must decide which configuration of platforms best meets mission needs with respect to a...