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Displaying 1801 - 1825 of 74068

Sub-recoil clock-transition laser cooling enabling shallow optical lattice clocks

September 8, 2022
Author(s)
Xiaogang Zhang, Kyle Beloy, Youssef Hassan, William McGrew, Chun-Chia Chen, Jacob Siegel, Tanner Grogan, Andrew Ludlow
Laser cooling is a key ingredient for quantum control of atomic systems in a variety of settings. In two-valence-electron atoms, two-stage Doppler cooling is typically used to bring atoms to the μK regime. Here, we implement a pulsed radial cooling scheme

Biomanufacturing Readiness Levels (BRL) - A Shared Vocabulary for Biomanufacturing Technology Development and Commercialization

September 7, 2022
Author(s)
John E. Schiel, Kelley Rogers, Sandeep Kedia, Jeffery Baker, Ruben Carbonell, Kelvin Lee, Christopher Roberts, John Erickson, Gene Schaefer, Stephanie Pluschkell
The Manufacturing Readiness Levels (MRLs) developed by the Department of Defense (DoD), are well established tools for describing the maturity of new technologies resulting from government sponsored Research and Development (R&D) programs, from the concept

Energy Broadening of Neutron Depth Profiles by Thin Polyamide Films

September 7, 2022
Author(s)
Jamie Weaver, Anna Job, Kedar Manandhar, Ichiro Takeuchi, Robert Gregory Downing
A protective covering is often required for neutron depth profiling (NDP) measurements of sensitive materials (e.g., Li-ion batteries). Addition of this layer can increase NDP profile energy broadening and depth assignment uncertainty. This study evaluates

Improved Uranium Particle Analysis by SIMS using O3- Primary Ions

September 6, 2022
Author(s)
Evan Groopman, Todd Williamson, David S. Simons
We have investigated the use of negative molecular oxygen primary ion beams (i.e., O2- and O3-) to determine the benefits of using such beams for uranium particle SIMS analyses. Typically, O- is the most practical negative primary ion species for both age

N-DISE: NDN-Based Data Distribution for Large-Scale Data-Intensive Science

September 6, 2022
Author(s)
Edmund Yeh, Harvey Newman, Lixia Zhang, Jason Cong, Susmit Shannigrahi, Yuanhao Wu, Catalin Iordache, Volkan Mutlu, Sankalpa Timilsina, Sichen Song, Michael Lo, Ran Liu, Chengyu Fan, Raimondas Sirvinskas, Justas Balcas, Yuezhou Liu, Davide Pesavento, Junxiao Shi, Lotfi Benmohamed
To meet unprecedented challenges faced by the world's largest data- and network-intensive science programs, we design and implement a new, highly efficient and field-tested data distribution, caching, access and analysis system for the Large Hadron

Maximizing Harvested Energy in Coulomb Force Parametric Generators

September 5, 2022
Author(s)
Masoud Roudneshin, Kamran Sayrafian, Amir Aghdam
Miniaturized wearable or implantable medical sensors are becoming an important application area for kinetic-based micro energy-harvesters. These harvesters can generate power through the natural human body motion. The architecture based on the Coulomb

Effect of network connectivity on behavior of synthetic Broborg Hillfort glasses

September 2, 2022
Author(s)
Jose Marcial, Maria Cicconi, Carolyn Pearce, Jaroslav Klouzek, James Neeway, Richard Pokorny, Miroslava Vernerova, John McCloy, Emily Nienhuis, Rolf Sjoblom, Jamie Weaver, Russell Hand, Pavel Hrma, Albert Kruger
There is wide industrial interest in developing robust models of long-term (>100years) glass durability. Archeological glass analogs, glasses of similar composition, and alteration conditions to those being tested for durability can be used to evaluate and

Network analysis approach to Likert-style surveys

September 2, 2022
Author(s)
Robert Dalka, Diana Sachmpazidi, Charles Henderson, Justyna Zwolak
Likert-style surveys are a widely used research instrument to assess respondents' preferences, beliefs, or experiences. In this paper, we propose and demonstrate how network analysis (NA) can be employed to model and evaluate the interconnectedness of

Overcoming Technological Barriers in Microfluidics: Leakage Testing

September 1, 2022
Author(s)
Vania Silverio, Suvajyoti Guha, Armelle Keiser, Rucha Natu, Darwin Reyes-Hernandez, Henne van Heeren, Nicolas Verplanck, Luke Herbertson
The miniaturization of laboratory procedures for Lab-on-Chip (LoC) devices and translation to various platforms such as single cell analysis or Organ-on-Chip (OoC) systems are revolutionizing the life sciences and biomedical fields. As a result

Visualizing Localized, Radiative Defects in GaAs Solar Cells

September 1, 2022
Author(s)
Behrang Hamadani, Margaret Stevens, Brianna Conrad, Matthew Lumb, Kenneth Schmieder
We have used a calibrated, wide-field hyperspectral imaging instrument to obtain absolute spectrally and spatially resolved photoluminescence images in high growth-rate, rear-junction GaAs solar cells from 300 K to 77 K. At the site of some localized
Displaying 1801 - 1825 of 74068