To maintain the integrity of the US nuclear stockpile without detonating nuclear weapons, the DOE needs the results of computer-simulations that overwhelm the world’s most powerful supercomputers. Responding to this need, the DOE initiated the Accelerated Strategic Computing Initiative (ASCI). This program accelerates the development of new scalable supercomputers resulting in a TeraFLOP comput...

We introduce a previously unreported laser cavity configuration, using a diffractive optical element (DOE) in place of the output coupler. Such a configuration allows the DOE to work both in reflection, as a mode shaping element, and in transmission as a beam shaper. Employing dual wavelength DOE optimization techniques and phase delays greater than 2pi, allows the two functions to be designed ...

The U.S. Department of Energy (DOE) Joint Genome Institute (JGI), a national user facility, serves the diverse scientific community by providing integrated high-throughput sequencing and computational analysis to enable system-based scientific approaches in support of DOE missions related to clean energy generation and environmental characterization. The JGI Genome Portal (http://genome.jgi.doe...

A survey was carried out to characterize experimentation in three different European regions: the Baden-Wurttemberg region, The Basque Country and the rest of Spain. Results of the survey show that even though experimentation is a frequent activity, almost 95% of companies conduct experiments; the strategies used to carry them out are primitive. The one-factor-at-a-time strategy is used by 75% ...

The results presented are related to the prediction of the specific grinding force components. The main problems associated with the prediction capability of empirical models developed using the design of experiment (DOE) method are given. In this study an approach suggesting the combination of DOE method and artificial neural network (ANN) is developed. The inputs of the developed ANNs were se...

We examine the problem of message recognition by reviewing the definitions and the security model in the literature. In particular, we examine the Jane Doe protocol, which was proposed by Lucks et al., more closely and note its inability to recover in case of a certain adversarial disruption. Our paper saves this well-studied protocol from its unrecoverable state when such adversarial disruptio...

The purpose of this paper is to present an automated design methodology for analog blocks. This method focuses on analog blocks design parameters automatic generation according to specific design constraints. This method is based on analog circuits’ mathematical models. These models are generated thanks to a “Design Of Experiment” (DOE) technique. The DOE technique takes as input electrical sim...

In this white paper we provide a perspective on the opportunities and needs for data intensive science within the Department of Energy. In particular, we focus on two areas in which DOE’s landscape is different from those of other organizations. First, DOE is a leader in the use of high performance computing for modeling and simulation, and these computations generate huge amounts of data to ma...

We show that the singular sources in the energy-momentum tensor for the RandallSundrum brane world, viewed as a solution of type IIB supergravity, are composed of two elements. One of these is a D3-brane source with tension opposite in sign to the RS tension in five dimensions; the other arises from patching two regions of flat ten-dimensional spacetime. This resolves an apparent discrepancy be...

We surveyed 1351 residents who lived near six U.S. Department of Energy (DOE) former nuclear weapon sites using random digit dialing and stratified random sampling in order to determine which risks most worried them and the predictors of their worries. Respondents’ greatest concerns were threats to their drinking water, transportation accidents, and worker exposures. The strongest predictors of...