Volume 71 - Issue 2 - November, 1959

https://scholar.rose-hulman.edu/technic/1065/thumbnail.jp

Unmanned Vehicle Systems & Operations on Air, Sea, Land

Unmanned Vehicle Systems & Operations On Air, Sea, Land is our fourth textbook in a series covering the world of Unmanned Aircraft Systems (UAS) and Counter Unmanned Aircraft Systems (CUAS). (Nichols R. K., 2018) (Nichols R. K., et al., 2019) (Nichols R. , et al., 2020)The authors have expanded their purview beyond UAS / CUAS systems. Our title shows our concern for growth and unique cyber security unmanned vehicle technology and operations for unmanned vehicles in all theaters: Air, Sea and Land – especially maritime cybersecurity and China proliferation issues. Topics include: Information Advances, Remote ID, and Extreme Persistence ISR; Unmanned Aerial Vehicles & How They Can Augment Mesonet Weather Tower Data Collection; Tour de Drones for the Discerning Palate; Underwater Autonomous Navigation & other UUV Advances; Autonomous Maritime Asymmetric Systems; UUV Integrated Autonomous Missions & Drone Management; Principles of Naval Architecture Applied to UUV’s; Unmanned Logistics Operating Safely and Efficiently Across Multiple Domains; Chinese Advances in Stealth UAV Penetration Path Planning in Combat Environment; UAS, the Fourth Amendment and Privacy; UV & Disinformation / Misinformation Channels; Chinese UAS Proliferation along New Silk Road Sea / Land Routes; Automaton, AI, Law, Ethics, Crossing the Machine – Human Barrier and Maritime Cybersecurity.Unmanned Vehicle Systems are an integral part of the US national critical infrastructure The authors have endeavored to bring a breadth and quality of information to the reader that is unparalleled in the unclassified sphere. Unmanned Vehicle (UV) Systems & Operations On Air, Sea, Land discusses state-of-the-art technology / issues facing U.S. UV system researchers / designers / manufacturers / testers. We trust our newest look at Unmanned Vehicles in Air, Sea, and Land will enrich our students and readers understanding of the purview of this wonderful technology we call UV.https://newprairiepress.org/ebooks/1035/thumbnail.jp

Structuring microscopic dynamics with macroscopic feedback: From social insects to artificial intelligence

Physical processes rely on the transmission of energy and information across scales. In the last century, theoretical tools have been developed in the field of statistical physics to infer macroscopic properties starting from a microscopic description of the system. However, less attention has been devoted to the remodelling of microscopic degrees of freedom by macroscopic feedback. In recent years, ideas from non-equilibrium physics have been applied to characterise biological and artificial intelligence systems. These systems share in common their structure in discrete scales of organisation that perform specialised functions. To correctly regulate these functions, the accurate transmission of information across scales is crucial. In this thesis we study the role of macroscopic feedback in the remodelling of microscopic degrees of freedom in two paradigmatic examples, one taken from the field of biology, the self-organisation of specialisation and plasticity in a social wasp, and one from artificial intelligence, the remodelling of deep neural networks in a stochastic many-particle system. In the first part of this thesis we study how the primitively social wasp Polistes canadensis simultaneously achieves robust specialization and rapid plasticity. Combining a unique experimental strategy correlating time-resolved measurements across vastly different scales with a theoretical approach, we characterise the re-establishment of the social steady state after queen removal. We show that Polistes integrates antagonistic processes on multiple scales to distinguish between extrinsic and intrinsic perturbations and thereby achieve both robust specialisation and rapid plasticity. Furthermore, we show that the long-term stability of the social structure relies on the regulation of transcriptional noise by dynamic DNA methylation. In the second part of this thesis, we ask whether emergent collective interactions can be used to remodel deep neural networks. To this end, we study a paradigmatic stochastic manyparticle model where the dynamics are defined by the reaction rates of single particles, given by the output of distinct deep neural networks. The neural networks are in turn dynamically remodelled using deep reinforcement learning depending on the previous history of the system. In particular, we implement this model as a one dimensional stochastic lattice gas. Our results show the formation of two groups of particles that move in opposite directions, diffusively at early times and ballistically over longer time-scales, with the transition between these regimes corresponding to the time-scale of left/right symmetry breaking at the level of individual particles. Over a hierarchy of characteristic time-scales these particles develop emergent, increasingly complex interactions characterised by short-range repulsion and long-range attraction. As a result, the system asymptotically converges to a regime characterised by the presence of anti-ferromagnetic particle clusters. To conclude, we characterise the impact of memory effects and demographic disorder on the dynamics. Together, our results shed light on how non-equilibrium systems can employ macroscopic feedback to regulate the propagation of fluctuations across scales

Speciation of Environmental Pollutants by Gc-Aa and by Esca. Purification of Water at Ultratrace Levels of Heavy Metals and Complexation Studies by Electrochemical Methods.

Speciation of environmental pollutants is essential for potential toxicity evaluations. It is important to determine what is the original chemical form of the pollutant when released in the environment as well as all possible reaction products and their potential hazards. The media through which these pollutants are transported in the environment are also of importance. Heavy metal pollutants usually occur in very low concentrations in the environment, therefore, very sensitive techniques are required for the determination of these metals. A GC-AA method was developed that allowed the simultaneous determination of PbEt(,4) and of PbEt(,3)Cl in gaseous and liquid samples. This method enabled the study of the behavior of PbEt(,4) (TEL) and the formation of PbEt(,3)Cl in sea water under several experimental conditions. From the results obtained, the potential hazard of TEL spills at sea was evaluated as well as the effect of particulate materials present in sea water on TEL concentration levels. Airborne heavy metal pollutants were studied by ESCA and the final chemical form of airborne Pb was found to be PbO(,2). Pt was sometimes detected but the determination of its chemical form was not possible. The importance of ESCA as a valuable tool for speciation of airborne matter was demonstrated. Since water free of heavy metal contaminants is essential for the preparation of standard solutions to be used for most environmental and trace metal determinations, an electrochemical method was developed to produce a readily available and economic source of ultrapure water. Because this system was not capable of removing complexed metals from water, a method was developed for the determination of stability constants of heavy metal complexes and for the study of reaction kinetics of complex formation. The electrochemical technique was illustrated with Cd, Pb, and Zn complexes of EDTA. Problems in storing very pure water and very dilute solutions of metal compounds were also discussed. An essentially complete literature review of each subject discussed was included in this dissertation

A History of Materials and Technologies Development

The purpose of the book is to provide the students with the text that presents an introductory knowledge about the development of materials and technologies and includes the most commonly available information on human development. The idea of the publication has been generated referring to the materials taken from the organic and non-organic evolution of nature. The suggested texts might be found a purposeful tool for the University students proceeding with studying engineering due to the fact that all subjects in this particular field more or less have to cover the history and development of the studied object. It is expected that studying different materials and technologies will help the students with a better understanding of driving forces, positive and negative consequences of technological development, etc

1881 - History of the state of California from the Period of the Conquest by Spain to Her Occupation by the United States, John Frost

Originally published in 1851 without the Appendix and with a chapter on the natural history of California, this 1881 edition covers the entire pre-United States history of California in pages 7 through 36. The remainder of the book focuses on California history following 1847 through 1853 (pages 36 through 300) with a significant emphasis on gold, mining, agriculture and other resources; the formation of the state government; routes to California; the Californians; and California Indians. This later edition excluded the natural history chapter and added a new one concerning events in California from its admission into the United States to the beginning of 1853. The Appendix (A through M) contains the original California State Constitution along with numerous official documents.https://digitalcommons.csumb.edu/hornbeck_usa_3_d/1048/thumbnail.jp

Facets of the ecology, behaviour and evolution of ants

SIGLEAvailable from British Library Document Supply Centre- DSC:DX178611 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

The National Aeronautics and Space Administration interdisciplinary studies in space technology at the University of Kansas

A broad range of research projects contained in a cooperative space technology program at the University of Kansas are reported as they relate to the following three areas of interdisciplinary interest: (1) remote sensing of earth resources; (2) stability and control of light and general aviation aircraft; and (3) the vibrational response characteristics of aeronautical and space vehicles. Details of specific research efforts are given under their appropriate departments, among which are aerospace engineering, chemical and petroleum engineering, environmental health, water resources, the remote sensing laboratory, and geoscience applications studies

Predicting and auralizing acoustics in classrooms

Although classrooms have fairly simple geometries, this type of room is known to cause problems when trying to predict their acoustics using room acoustics computer modeling. Some typical features from a room acoustics point of view are: Parallel walls, low ceilings (the rooms are flat), uneven distribution of absorption, and most of the floor being covered with furniture which at long distances act as scattering elements, and at short distance provide strong specular components. The importance of diffraction and scattering is illustrated in numbers and by means of auralization, using ODEON 8 Beta