Ground-water resources data of Charlotte, DeSoto, and Hardee Counties, Florida

Charlotte, De Soto, and Hardee counties are east-southeast of Tampa in west-central peninsular Florida, figure 1. In order to plan the future water-resource development of the area, information about the water resources is needed. To meet this need, the Water Resources Division of the U.S. Geological Survey, in cooperation with the Peace River Basin Board of the Southwest Florida Water Management District as part of the statewide cooperative program with the Division of Geology, Florida Board of Conservation, began a continuing hydrologic data collection program in July, 1963, as an initial step in the investigation and evaluation of the groundwater resources of Hardee and De Soto counties. A similar hydrologic data program commenced in Charlotte County in July, 1964. Previous work in Hardee and De Soto counties included a one year reconnaissance by the Division of Water Resources and Conservation, Florida Board of Conservation, which concluded in June, 1963, and resulted in a hydrologic report (Woodard, 1964). As an outgrowth of the hydrologic data program, a Map Series report portraying the chemical character of water in the Floridan aquifer in the southern Peace River basin was prepared in 1967 (Kaufman and Dion). The data contained herein constitute the basis for the Map Series report. Additional selected data, including records of wells and chemical analyses,, on the ground-water resources of the three county area are also included and are published to make the data available. (Document has 28 pages.

On the Mechanism of Townsend Avalanche for Negative Molecular Ions

Time projection chambers drifting negative ions (NITPC) instead of electrons have several advantages. A NITPC can operate at very high reduced drift fields without diffusion runaway, and the readout digitization sampling rate requirement is considerably relaxed due to the low drift speed of negative ions. The initiation of Townsend avalanches to allow gas gain in these devices has not been understood until now. It is shown here that the avalanche in low pressure CS$_2$ vapor is most likely initiated by collisional detachment of the electron from the negative molecular ion. In mixtures of Nitromethane vapor with CO$_2$ the mechanism appears to be more complex

A Single European Market, Its Goals and What it Means for U.S. Business

This thesis was a look at Europe as it is changing to become a single unified market. It describes a brief history of the EC, gives the goals of the EC and what it is trying to accomplish. In addition, it discusses what the possible outcomes will be such as increased employment, lower costs, better technology and more competition. Finally, it gives the most promising export production and the best markets to export to. Europe is attempting to become more competitive and this paper describes the barriers they have to knock down to achieve unity.B.S. (Bachelor of Science

New partitioning perturbation theory. 2 - Example of almost degeneracy

Degeneracy applications to partitioning perturbation theory - Part

Influence of the lattice topography on a three-dimensional, controllable Brownian motor

We study the influence of the lattice topography and the coupling between motion in different directions, for a three-dimensional Brownian motor based on cold atoms in a double optical lattice. Due to controllable relative spatial phases between the lattices, our Brownian motor can induce drifts in arbitrary directions. Since the lattices couple the different directions, the relation between the phase shifts and the directionality of the induced drift is non trivial. Here is therefore this relation investigated experimentally by systematically varying the relative spatial phase in two dimensions, while monitoring the vertically induced drift and the temperature. A relative spatial phase range of 2pi x 2pi is covered. We show that a drift, controllable both in speed and direction, can be achieved, by varying the phase both parallel and perpendicular to the direction of the measured induced drift. The experimental results are qualitatively reproduced by numerical simulations of a simplified, classical model of the system

Experimental measurement of efficiency and transport coherence of a cold atom Brownian motor in optical lattices

The rectification of noise into directed movement or useful energy is utilized by many different systems. The peculiar nature of the energy source and conceptual differences between such Brownian motor systems makes a characterization of the performance far from straightforward. In this work, where the Brownian motor consists of atoms interacting with dissipative optical lattices, we adopt existing theory and present experimental measurements for both the efficiency and the transport coherence. We achieve up to 0.3% for the efficiency and 0.01 for the P\'eclet number

Combining Model-Driven Design With Diverse Formal Verification

International audienceTwo historically diverse research streams are now delivering strong industrial performance in the engineering of high-integrity, software-intensive systems. The earlier of these is the use of source-language-based static analysis and formal verification. The more recent is the use of model-driven design coupled with automatic code generation. Although both have been effective, neither is without problems. Fortunately, these approaches are not mutually exclusive and combining them offers a route to ultra-high integrity at low cost. The paper exemplifies the approach by describing the combining of SPARK and SCADE and illustrating the benefits and opportunities that this brings

A benign, low Z electron capture agent for negative ion TPCs

We have identified nitromethane (CH$_3$NO$_2$) as an effective electron capture agent for negative ion TPCs (NITPCs). We present drift velocity and longitudinal diffusion measurements for negative ion gas mixtures using nitromethane as the capture agent. Not only is nitromethane substantially more benign than the only other identified capture agent, CS$_2$, but its low atomic number will enable the use of the NITPC as a photoelectric X{}-ray polarimeter in the 1{}-10 keV band

A combinatorial identity arising from cobordism theory

Let $\underline\alpha=(\alpha_1,\alpha_2,\dots,\alpha_m)\in{\Bbb R}_{>0}^m$. Let $\mathop{\underline\alpha\,}_{i,j}$ be the vector obtained from $\underline\alpha$ by deleting the entries $\alpha_i$ and $\alpha_j$. A. Besser and P. Moree [Arch. Math. (Basel) 79 (2002), no. 6, 463--471; MR1967264 (2004a:11014)] introduced some invariants and near invariants related to the solutions \underline\epsilon\in\{\pm1}^{m-2} of the linear inequality ${|\alpha_i-\alpha_j|}<\langle\underline\epsilon, \mathop{\underline\alpha\,}_{i,j}\rangle<\alpha_i+\alpha_j$, where $\langle·,·\rangle$ denotes the usual inner product and $\mathop{\underline\alpha\,}_{i,j}$ the vector obtained from $\underline\alpha$ by deleting $\alpha_i$ and $\alpha_j$. The main result of [op. cit.] is extended here to a much more general setting, namely that of certain maps from finite sets to ${-1,1}$