Tuesday - May 28, 2024
Federal - Executive Branch

News releases, reports, statements and associated documents from the U.S. Executive Branch, covering all aspects of the Obama administration including cabinet departments, federal agencies, regulatory and independent agencies.

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Antecedent Hydrometeorological Conditions of Wildfire Occurrence in the Western U.S. in a Changing Climate
WASHINGTON, Nov. 15 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

Wildfires have significant hydrological and ecological impacts in the western U.S. Using a high-resolution regional climate simulation and wildfire observations for 1984-2018, this study investigates the antecedent hydrometeorological conditions (AHCs) of wildfires in the western U.S. During the warm season (April - September), the wildfire AHCs feature diverse surface pressure (PS), soil moisture (SM), and longwave/shortwave radiation (LW/SW) ... Show Full Article

Charge trapping correction and energy performance of the Majorana Demonstrator
WASHINGTON, Nov. 10 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

P-type point contact (PPC) high-purity germanium detectors are an important technology in astroparticle and nuclear physics due to their superb energy resolution, low noise, and pulse shape discrimination capabilities. Analysis of data from the Majorana Demonstrator, a neutrinoless double-ss decay experiment deploying PPC detectors enriched in 76Ge, has led to several novel improvements in the analysis of PPC signals.

In this work we discuss ... Show Full Article

The Directional Unit Hydrograph Method: Connecting Streamflow Response to Storm Dynamics
WASHINGTON, Nov. 9 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

Storm direction and storm velocity play a critical role in streamflow response; and despite evidence of ongoing changes in storm tracks around the world, there is no practical approach to efficiently assess and quantify the role of these storm properties in streamflow magnitude. We address this technical gap by introducing the Directional Unit Hydrograph (Directional-UH) model to systematically evaluate the storm hydrograph as a function of storm ... Show Full Article

Insights into radiation resistance of titanium alloys from displacement cascade simulations
WASHINGTON, Nov. 8 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

Radiation damage in beam window materials limits the use of high power proton beams in high energy physics research. The alloy Ti-6Al-4V is presently used as a beam window material but a prospective alternative, Ti-15V-3Cr-3Sn-3Al has been proposed. Since both these alloys contain dual phases at room temperature, we compare the radiation damage in the a and ss-phases of these two materials via primary knock-on atom (PKA) cascade simulations in ... Show Full Article

Distributed Optimal Power Management for Battery Energy Storage Systems: A Novel Accelerated Tracking ADMM Approach
WASHINGTON, Nov. 8 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

Optimal power management (OPM) is critical for large-scale battery energy storage systems. Today's methods often require formidable computational effort due to the design based on centralized numerical optimization. Thus, this paper investigates computationally distributed OPM where the agents based on the cells communicate over a network to cooperatively solve the OPM problem.

We propose an accelerated tracking alternating direction method of ... Show Full Article

A Scalable Wave Resource Assessment Methodology: Application to U.S. Waters
WASHINGTON, Nov. 8 (TNSres) -- The U.S. Department of Energy's Pacific Northwest National Laboratory issued the following abstract of a journal article:

Wave energy technology research and development has accelerated over the last two decades. This is largely based on the recognition that waves deliver massive quantities of energy to populated coastlines around the world. Throughout this time, however, there have been ongoing debates about the correct methodology for quantifying the wave energy opportunity. The debate has centered on basic principles of wave energy converter technology, and the ... Show Full Article

State Dept.: China Coordinator Lambert Virtual Meeting With China Ministry of Foreign Affairs Director-General for Boundary & Ocean Affairs Hong Liang
WASHINGTON, May 28 -- The U.S. State Department issued the following news release:

U.S. Department of State China Coordinator and Deputy Assistant Secretary for China and Taiwan Mark B. Lambert met virtually with People's Republic of China (PRC) Director-General for Boundary and Ocean Affairs Hong Liang on May 23. The two sides discussed the current situation in the South China Sea and East China Sea, as well as other maritime issues.

The United States raised concerns with the PRC's dangerous and destabilizing actions interfering with other states' exercise of high seas freedoms of navigation ... Show Full Article