Long term seismic noise acquisition and analysis with tunable monolithic horizontal sensors at the INFN Gran Sasso National Laboratory

2012 ◽  
Author(s):  
F. Acernese ◽  
R. Canonico ◽  
R. De Rosa ◽  
G. Giordano ◽  
R. Romano ◽  
...  
Keyword(s):  
Seismic Noise ◽  
National Laboratory

Long-term seismic noise investigations on Shikotan Island: First results

2008 ◽  
Vol 2 (3) ◽  
pp. 218-227 ◽  
Author(s):  
Yu. A. Kugaenko ◽  
V. A. Saltykov ◽  
V. I. Sinitsyn ◽  
A. A. Shishkin
Keyword(s):  
Seismic Noise ◽  
Shikotan Island ◽  
First Results

Validation of Reanalysis-Based Offshore Wind Resource Characterization Using Lidar Buoy Observations

2020 ◽  
Vol 54 (6) ◽  
pp. 44-61
Author(s):  
Lindsay M. Sheridan ◽  
Raghavendra Krishnamurthy ◽  
Alicia M. Gorton ◽  
Will J. Shaw ◽  
Rob K. Newsom
Keyword(s):  
Pacific Northwest ◽  
National Laboratory ◽  
Pacific Northwest National Laboratory ◽  
The United States ◽  
Department Of Energy ◽  
Offshore Wind ◽  
Approximation Techniques ◽  
The North ◽  
Wind Resource

AbstractThe offshore wind industry in the United States is gaining strong momentum to achieve sustainable energy goals, and the need for observations to provide resource characterization and model validation is greater than ever. Pacific Northwest National Laboratory (PNNL) operates two lidar buoys for the U.S. Department of Energy (DOE) in order to collect hub height wind data and associated meteorological and oceanographic information near the surface in areas of interest for offshore wind development. This work evaluates the performance of commonly used reanalysis products and spatial approximation techniques using lidar buoy observations off the coast of New Jersey and Virginia, USA. Reanalysis products are essential tools for setting performance expectations and quantifying the wind resource variability at a given site. Long-term accurate observations at typical wind turbine hub heights have been lacking at offshore locations. Using wind speed observations from both lidar buoy deployments, biases and degrees of correspondence for the Modern-Era Retrospective Analysis for Research and Applications-2 (MERRA-2), the North American Regional Reanalysis (NARR), ERA5, and the analysis system of the Rapid Refresh (RAP) are examined both at hub height and near the surface. Results provide insights on the performance and uncertainty of using reanalysis products for long-term wind resource characterization. A slow bias is seen across the reanalyses at both deployment sites. Bias magnitudes near the surface are on the order of 0.5 m s−1 greater than their hub height counterparts. RAP and ERA5 produce the highest correlations with the observations, around 0.9, followed by MERRA-2 and NARR.

Preliminary Studies of the Disposition of Cesium in a Glass-Bonded Sodalite Waste form

2002 ◽  
Vol 713 ◽  
Author(s):  
Marsha J. Lambregts ◽  
Steven M. Frank
Keyword(s):  
National Laboratory ◽  
Argonne National Laboratory ◽  
Fission Products ◽  
Waste Form ◽  
Resonance Spectroscopy ◽  
Ceramic Waste ◽  
Long Term Storage ◽  
Geological Repository ◽  
Term Storage

ABSTRACTArgonne National Laboratory has developed an electrometallurgical treatment for DOE spent metallic nuclear fuel. Fission products are immobilized in a durable glass bonded sodalite ceramic waste form (CWF) suitable for long term storage in a geological repository. Cesium is estimated to be in the waste form at approximately 0.1 wt.%. The exact disposition of cesium was uncertain and it was believed to be uniformly distributed throughout the waste form. A correlation of X-ray diffractometry (XRD), electron microscopy (EM), and nuclear magnetic resonance spectroscopy (NMR) performed on surrogate ceramic waste forms with high cesium loadings found a high cesium content in the glass phase and in several non-sodalite aluminosilicate phases. Cesium was not detected in the sodalite phase.

scholarly journals Long term seismic noise acquisition and analysis in the Homestake mine with tunable monolithic sensors

2009 ◽  
Author(s):  
Fausto Acernese ◽  
Rosario De Rosa ◽  
Riccardo De Salvo ◽  
Gerardo Giordano ◽  
Jan Harms ◽  
...  
Keyword(s):  
Seismic Noise ◽  
Homestake Mine

Sulfur Polymer Cement as a Low-Level Waste Glass Matrix Encapsulant, Part I: Thermal Processing

1995 ◽  
Vol 412 ◽  
Author(s):  
Paul Sliva ◽  
Y. Benjamin Peng ◽  
L. Roy Bunnell ◽  
David K. Peeler ◽  
Xiangdong Feng ◽  
...  
Keyword(s):  
Pacific Northwest ◽  
Thermal Processing ◽  
National Laboratory ◽  
Pacific Northwest National Laboratory ◽  
Northwest National Laboratory ◽  
Glass Cullet ◽  
Low Level ◽  
Long Term Stability ◽  
Additional Barrier

AbstractSulfur polymer cement (SPC) is a candidate material to encapsulate low-level waste (LLW) glass. Molten SPC will be poured into a LLW glass cullet-filled canister, surrounding the glass to act as an additional barrier to groundwater intrusion. This paper covers the first part of a study performed at Pacific Northwest National Laboratory concerned with the fundamental aspects of embedding LLW glass in SPC. Part one is a study of the SPC itself. Variations in SPC properties are discussed, especially in relation to long-term stability and controlling crystallization in a cooling canister.

scholarly journals New Retinas for Old

2003 ◽  
Vol 125 (10) ◽  
pp. 42-46 ◽  
Author(s):  
Gayle Ehrenman
Keyword(s):  
Private Sector ◽  
Human Body ◽  
Microelectrode Array ◽  
National Laboratory ◽  
Retinal Prosthesis ◽  
Artificial Retina ◽  
Oak Ridge ◽  
Retinal Tissue ◽  
The Brain

This article reviews retinal prosthesis that is a seeing-eye chip with as many as 1000 tiny electrodes to be implanted in the eye. It has the potential to help people who have lost their sight regain enough vision to function independently in the sighted world. The Artificial Retina Project is a collaboration of five US National laboratories, three universities, and the private sector. The interface module and the antenna for future versions of the retinal prosthesis will all be implanted in the eye, instead of outside the eye. The retinal prosthesis will help patients who still have neutral wiring from the eye to the brain. One of the challenges in developing the device is creating a microelectrode array that conforms to the curved shape of the retina, without damaging the delicate retinal tissue. Oak Ridge National Laboratory in Oak Ridge, Tennessee, is the lead lab on the Artificial Retina Project. They're the folks responsible for fabricating and testing the electrodes, and making sure they're up to the challenge of being implanted long term in a human body.

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