Manned Mars mission communication and data management systems

A manned Mars mission will involve a small crew and many complex tasks. The productivity of the crew and the entire mission will depend significantly on effective automation of these tasks and the ease with which the crew can interface with them. The technology to support a manned Mars mission is available today; however, evolving software and electronic technology are enabling many interesting possibilities for increasing productivity and safety while reducing life cycle cost. Some of these advanced technologies are identified

Varieties of Nonassociative Rings of Bol-Moufang Type

In this paper we investigate Bol-Moufang identities in a more general and very natural setting, \textit{nonassociative rings}. We first introduce and define common algebras. We then explore the varieties of nonassociative rings of Bol-Moufang type. We explore two separate cases, the first where we consider binary rings, rings in which we make no assumption of it\u27s structure. The second case we explore are rings in which, $2x=0$ implies $x=0$

Developing a Model-Based Systems Engineering (MBSE) Land Domain Construct for Marine Corps Systems Command

NPS NRP Executive SummaryThe purpose of this research is to consider four major areas for designing and analyzing an ontology, and conceptual data model (CDM) that can be applied across the Land Domain. Focus area 1 considers the importance of designing a generic (simple) ontology that comprehensively represents the system across the lifecycle. As such, an ontology that will serve as the foundation of the Land Domain will be described. Focus area 2 analyzes the relationships between entities defined within the ontology. System structure identifies the elements of the system that connect and interact with each other to achieve the system's purpose, and depicts how behavior will emerge within the system. A previously developed generic CDM will be analyzed, and further defined where needed, to serve as the basis of a common terminology and structure for the Land Domain. Focus area 3 considers the ontology as a foundation for an authoritative source of truth. This research will demonstrate the utility of having authoritative data within a defined structure, and validate the generic ontology and CDM using an example mission thread. Finally, focus area 4 will design a roadmap (modeling plan) depicting the recommended path to transition from document-based systems engineering to a true MBSE-based Land Domain.Marine Corps Systems Command (MARCORSYSCOM)This research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Developing a Model-Based Systems Engineering (MBSE) Land Domain Construct for Marine Corps Systems Command

NPS NRP Project PosterThe purpose of this research is to consider four major areas for designing and analyzing an ontology, and conceptual data model (CDM) that can be applied across the Land Domain. Focus area 1 considers the importance of designing a generic (simple) ontology that comprehensively represents the system across the lifecycle. As such, an ontology that will serve as the foundation of the Land Domain will be described. Focus area 2 analyzes the relationships between entities defined within the ontology. System structure identifies the elements of the system that connect and interact with each other to achieve the system's purpose, and depicts how behavior will emerge within the system. A previously developed generic CDM will be analyzed, and further defined where needed, to serve as the basis of a common terminology and structure for the Land Domain. Focus area 3 considers the ontology as a foundation for an authoritative source of truth. This research will demonstrate the utility of having authoritative data within a defined structure, and validate the generic ontology and CDM using an example mission thread. Finally, focus area 4 will design a roadmap (modeling plan) depicting the recommended path to transition from document-based systems engineering to a true MBSE-based Land Domain.Marine Corps Systems Command (MARCORSYSCOM)This research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Developing a Model-Based Systems Engineering (MBSE) Land Domain Construct for Marine Corps Systems Command

NPS NRP Technical ReportThe purpose of this research is to consider four major areas for designing and analyzing an ontology, and conceptual data model (CDM) that can be applied across the Land Domain. Focus area 1 considers the importance of designing a generic (simple) ontology that comprehensively represents the system across the lifecycle. As such, an ontology that will serve as the foundation of the Land Domain will be described. Focus area 2 analyzes the relationships between entities defined within the ontology. System structure identifies the elements of the system that connect and interact with each other to achieve the system's purpose, and depicts how behavior will emerge within the system. A previously developed generic CDM will be analyzed, and further defined where needed, to serve as the basis of a common terminology and structure for the Land Domain. Focus area 3 considers the ontology as a foundation for an authoritative source of truth. This research will demonstrate the utility of having authoritative data within a defined structure, and validate the generic ontology and CDM using an example mission thread. Finally, focus area 4 will design a roadmap (modeling plan) depicting the recommended path to transition from document-based systems engineering to a true MBSE-based Land Domain.Marine Corps Systems Command (MARCORSYSCOM)This research is supported by funding from the Naval Postgraduate School, Naval Research Program (PE 0605853N/2098). https://nps.edu/nrpChief of Naval Operations (CNO)Approved for public release. Distribution is unlimited.

Studies on hydroperoxide-dependent substrate hydroxylation by purified liver microsomal cytochrome P-450

Highly purified liver microsomal cytochrome P-450 catalyzes the hydroperoxide-dependent hydroxylation of a variety of substrates in the absence of NADPH, NADPH-cytochrome P-450 reductase, and molecular oxygen. The addition of phosphatidylcholine is necessary for maximal activity. The absence of flavoproteins and cytochrome b5 from the cytochrome P-450 preparations rules out the involvement of other known microsomal electron carriers. The ferrous form of cytochrome P-450 is not involved in peroxide-dependent hydroxylation reactions, as indicated by the lack of inhibition by carbon monoxide. With cumene hydroperoxide present, a variety of substrates is attacked, including N-methylaniline, N,N-dimethylaniline, cyclohexane, benzphetamine, and aminopyrine. With benzphetamine as the substrate, cumene hydroperoxide may be replaced by other peroxides, including hydrogen peroxide, or by peracids or sodium chlorite. A study of the stoichiometry indicated that equimolar amounts of N-methylaniline, formaldehyde, and cumyl alcohol ([alpha],[alpha]-dimethylbenzyl alcohol) are formed in the reaction of N,N-dimethylaniline with cumene hydroperoxide. Since H218O is incorporated only slightly into cyclohexanol in the reaction of cyclohexane with cumene hydroperoxide, it appears that the oxygen atom in cyclohexanol is derived primarily from the peroxide. The data obtained are in accord with a peroxidase-like mechanism for the action of cytochrome P-450.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/21710/1/0000102.pd