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Displaying 3451 - 3475 of 143784

A review of machine learning-based zero-day attack detection: Challenges and future directions

January 15, 2023

Author(s)

Yang Guo

Zero-day attacks exploit unknown vulnerabilities so as to avoid being detected by cybersecurity detection tools. The studies Bilge and Dumitraş (2012), Google (0000) and Ponemon Sullivan Privacy Report (2020) show that zero-day attacks are wide spread and

Facile Polymerization in a Bicellar Template to Produce Polymer Nano-Rings

January 15, 2023

Author(s)

Chung-Hao Liu, Catherine Cheu, John Barker, Lin Yang, Mu-Ping Nieh

Hypothesis: A well-defined discoidal bicelle composed of three lipids, specifically zwitterionic long-chain 1,2-dipalmitoyl phosphocholine (DPPC) and short-chain 1,2-dihexanoyl phosphocholine (DHPC) doped with anionic 1,2-dipalmitoyl phosphoglycerol (DPPG)

Insights on Hydrogen Injection and GdO x /Co Interface Chemistry from In Operando Neutron Reflectometry and Secondary Ion Mass Spectrometry

January 13, 2023

Author(s)

S. Sheffels, Purnima P. Balakrishnan, M. Huang, Shinichiro N. Muramoto, Julie Borchers, Joseph Dura, Alexander Grutter, G. Beach

Beginners Guide to Biometric and Forensic Science Human Subjects Research Protections

January 12, 2023

Author(s)

Melissa Taylor, William Chapman, R. Austin Hicklin

This document is designed to help researchers in the United States navigate and comply with requirements and best practices for human subjects research, with specific emphasis on biometric and forensic research. The purpose of this document is to summarize

Entering New Era of Thermoelectric Oxide Ceramics with High Power Factor through Designing Grain Boundaries

January 12, 2023

Author(s)

Cesar-Octavio Romo-De-La-Cruz, Yun Chen, Liang Liang, Sergio Paredes-Navia, Winnie Wong-Ng, Mark Williams, Xueyan Song

Thermoelectric (TE) oxide ceramics could play a significant role in waste heat recovery using TE generators, accelerating clean energy generation and achieving net-zero emissions. In 2003, the TE performance of single-crystal Ca3Co4O9+δ was evaluated with

Reference Correlation for the Viscosity of Ethanol from the Triple Point to 620 K and up to 102 MPa

January 12, 2023

Author(s)

Sofia Sotiriadou, Eleftheria Ntonti, Danai Velliadou, Konstantinos D. Antoniadis, Marc Assael, Marcia L. Huber

We present a wide-ranging correlation expressed in terms of temperature and density for the viscosity of ethanol based on critically evaluated experimental data. The correlation is designed to be used with an existing equation of state from the triple

X-ray absorption fine structure characterization of a multicomponent spinel catalyst

January 12, 2023

Author(s)

Evan Jahrman, Kimber L. Stamm Masias, Torin C. Peck, Charles A. Roberts

Demand for high-performing, inexpensive catalysts has motivated the development of mixed 3d transition metal architectures. Here, X-ray spectroscopies are uniquely positioned to inform intensive searches of compositional spaces by elucidating structure

2022 Topical Meeting on Optical Interference Coatings: Manufacturing Problem Contest

January 11, 2023

Author(s)

Catherine Cooksey, Daniel Poitras, Luke Sandilands, Penghui Ma, Stacey Lee, Michael Jacobson

Participants to the 2022 Manufacturing Contest were challenged to fabricate an optical filter with a specified stepped transmittance spanning three orders of magnitude from 400 nm to 1100 nm. The problem required that contestants be equally versed in the

3D Asymmetric Bilayer Garnet-Hybridized High-Energy-Density Lithium-Sulfur Batteries

January 11, 2023

Author(s)

Changmin Shi, Tanner Hamann, Saya Takeuchi, George Alexander, Adelaide M. Nolan, Matthew Limpert, Zhezhen Fu, Jonathan O'Neill, Griffin Godbey, Joseph A. Dura, Eric Wachsman

Lithium garnet Li 7La 3Zr 2O 12 (LLZO) with high ionic conductivity and chemical stability against a Li metal anode is considered one of the most promising solid electrolytes for lithium-sulfur batteries. However, an infinite charge time resulting in low

5G New Radio Sidelink Link-Level Simulator v1.0

January 11, 2023

Author(s)

Chunmei Liu, Fernando Cintron, Richard A. Rouil, Peng Liu, Chen Shen, LYUTIANYANG ZHANG, Liu Cao, Sumit Roy

Defining Chi for Block Copolymer Lithography

January 11, 2023

Author(s)

Whitney Loo, Hongbo Feng, Thomas Ferron, Ricardo Ruiz, Daniel Sunday, Paul Nealey

Block copolymer lithography, such as directed self-assembly, requires the design of nanostructured block copolymers with precise values of segregation strength, 20≤χN≤25, in order to balance covarying material properties and meet manufacturing requirements

Federal Cybersecurity Role-Based Training Approaches, Successes, and Challenges

January 11, 2023

Author(s)

Jody Jacobs, Julie Haney, Susanne M. Furman

This Special Publication details our research exploring cybersecurity role-based training for those who for individuals who are assigned management, operational, and technical roles having security and privacy responsibilities.

Hydration of a side-chain-free n-type ladder semiconducting polymer driven by electrochemical doping

January 11, 2023

Author(s)

Jiajie Guo, Lucas Flagg, Duyen Tran, Shinya Chen, Ruipeng Li, Nagesh Kolhe, Rajiv Giridharagopal, Samson A. Jenekhe, Lee J. Richter, David Ginger

We study the organic electrochemical transistor (OECTs) performance of the ladder polymer, poly(benzimidazobenzophenanthroline) (BBL) in an attempt to better understand how an apparently insoluble side-chain free polymer is able to operate as an OECT with

Micro- and Nanoscale Surface Analysis of Late Iron Age Glass from Broborg, a Vitrified Swedish Hillfort

January 11, 2023

Author(s)

Bethany Matthews, James Neeway, Lorena Nava Farias, Jose Marcial, Bruce Arey, Jennifer Soltis, LiBor Kovarik, Zihua Zhu, Michael Schweiger, Nathan Canfield, Tamas Varga, Mark Bowden, Jamie Weaver, John McCloy, Rolf Sjoblom, Eva Hjarthner-Holdar, Mia Englund, Erik Ogenhall, Edward Vicenzi, Claire Corkhill, Clare Thorpe, Russell Hand, David Peeler, Carolyn Pearce, Albert Kruger

Archaeological glasses with prolonged exposure to biogeochemical processes in the environment can be used to understand glass alteration, which is important for the safe disposal of vitrified nuclear waste. Samples of mafic and felsic glasses with

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