Lawless W.F.,Paine College
Journal of Engineering Science and Technology Review | Year: 2015
We report on the development of a mathematical model of social uncertainty relations to replace traditional models of the interaction, as well as a model of complexity from econophysics. Our goal with this mathematics is to control hybrid teams, firms and systems (i.e., where "hybrids" are arbitrary combinations of humans, robots and machines). But uncertainty is created by states of interdependence between social objects: at one extreme, interdependence reduces to independence between agents, producing rational but asocial effects; at the other extreme, interdependence de-individuates a group's members until individual identity dissolves into a group (e.g., strong cults, mobs, gangs, and well-run teams and firms). In other studies, we have reviewed the structure of teams; in this report, we focus on how interdependence impedes efforts at direct control by making meaning incomplete. We begin with bistability to simplify interdependence, and generalize to full interdependence. © 2015 Kavala Institute of Technology. Source
Zhang X.-N.,Paine College |
Hu H.-M.,Marine Fishery Institute of Zhejiang Province
Wuli Huaxue Xuebao/ Acta Physico - Chimica Sinica | Year: 2016
The alignment of the ionic liquid (IL) cation and anion at the interface is of interest because it would affect the surface structures and properties of IL at the interfaces. In this study, Kelvin probe force microscopy (KPFM), a scanning probe microscopy technique, was used to investigate the interfacial properties of the IL at room temperature. A model molecule, 1-butyl-3-methylimidazolium chloride ([Bmim]Cl), was selectively assembled on the lyophilic chemical patterns prepared on a substrate, forming ultrathin solid-like adsorbate layers and droplets. Because the surface potential is a direct indicator of the surface dipole, which is useful for examining molecular orientation, the surface potential maps captured by KPFM indicated that the [Bmim]Cl molecules demonstrated different orientations at the gas-liquid interface (in the form of a droplet) and at the gassolid interface (in the form of a solid-like adsorbate layer). Our results indicate that KPFM has potential for the characterization of IL molecular alignment at interfaces. © Editorial office of Acta Physico-Chimica Sinica. Source
Mittu R.,U.S. Navy |
Lawless W.F.,Paine College
AAAI Spring Symposium - Technical Report | Year: 2015
In this paper, we review the pervasiveness of cyber threats and the roles of both attackers and defenders (i.e. the targets of the attackers): The lack of awareness of eyber-threats by users; the complexity of the new cyber environment, including cyber risks: engineering approaches and tools to mitigate cyber threats; and research to identify proactive steps that users and teams can take to reducc cyber-threats. In addition, we review the research needed on the psychology of human users that pose risks to all users from eyber-attacks. For the latter, we review the available theory at the individual and group levels that may help individual users, groups and organizations take actions against cyber threats. We end with future research needs and conclusions. Copyright © 2015, AAAI Press. Source
Agency: NSF | Branch: Standard Grant | Program: | Phase: | Award Amount: 162.26K | Year: 2012
This project will conduct analytical studies on multi-hop wireless networks under a realistic shadowing model with an important boundary effect taken into consideration. The project will investigate the critical transmission power required for each node to ensure that the network is connected asymptotically almost surely under a shadowing model, and explore the relation between the probability that the network is connected and the probability that the network has no isolated nodes. The impact of radio irregularity on network connectivity and radio interference in practical multihop wireless networks under the shadowing model will be examined. The ultimate goal of this project is to make significant improvements for research and education in computer science at Paine College and increase the participation of African American undergraduate students in computer science research.
The rapid proliferation of mobile and wireless devices provides an excellent opportunity for theoretic research in the wireless networking area. The log-normal shadowing model is a realistic radio propagation model which has been widely used. The important boundary effect must be taken into consideration in any practical multihop wireless networks. Under such a shadowing model with the boundary effect included, little is known about connectivity of practical multihop wireless networks and the impact of radio irregularity on connectivity and interference. The results of this research will be of interest in areas such as throughput capacity, virtual backbone, topology control, routing protocols, information theory and networking. Multihop wireless networks are expected to play a key role in solving problems such as securing our homeland, protecting the infrastructure, monitoring conditions in the biosphere, or in the diagnosis and treatment of illnesses.
Agency: NSF | Branch: Standard Grant | Program: | Phase: HIST BLACK COLLEGES AND UNIV | Award Amount: 193.96K | Year: 2015
The Historically Black Colleges and Universities-Undergraduate Program (HBCU-UP) Research Initiation Awards (RIAs) provide support to STEM junior faculty at HBCUs who are starting to build a research program, as well as for mid-career faculty who may have returned to the faculty ranks after holding an administrative post or who needs to redirect and rebuild a research program. Faculty members may pursue research at their home institution, at an NSF-funded Center, at a research intensive institution or at a national laboratory. The RIA projects are expected to help further the faculty members research capability and effectiveness, to improve research and teaching at his or her home institution, and to involve undergraduate students in research experiences. With support from the National Science Foundation, Paine College will conduct research to develop bio-fouling resistant surfaces. The project will enhance the research capabilities of the PI as well as teaching and learning at Paine College. The project will provide undergraduate students with research opportunities and advance skills in chemistry. This experience will help to build the competency of the undergraduate students and support the nations efforts in building a robust STEM workforce.
This study will investigate an approach that will allow thiol-terminated surfaces to be used and re-used by attaching molecules with antifouling functional groups via a disulfide bond. The specific objectives are to: 1) engineer silicon-based thin films for antifouling functionalization; and 2) confirm antifouling function of chemically modified substrates. Findings from this project will provide new knowledge on silicon surface modification. This approach may be used for the modification of surfaces of other materials, such as carbon-based materials. The development of techniques for surface modification also can be used for building protein arrays with nano-sized features on silicon or carbon surfaces. The results of this project may be transferable to the shipping and biomedical industries, and become a solution to reduce the costs associated with fouling. This project will be conducted in collaboration with Marshall University and the University of North Carolina at Chapel Hill.