Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Social and Behavioral Sciences (3993)
- Communication (2172)
- Mass Communication (2150)
- Journalism Studies (2148)
- Physical Sciences and Mathematics (1697)
-
- Library and Information Science (1640)
- Computer Sciences (1053)
- Scholarly Communication (506)
- Engineering (364)
- Information Literacy (342)
- Collection Development and Management (339)
- Cataloging and Metadata (304)
- Artificial Intelligence and Robotics (277)
- Education (272)
- Arts and Humanities (232)
- Astrophysics and Astronomy (221)
- Computer Engineering (196)
- Other Computer Sciences (133)
- Physics (132)
- Public Affairs, Public Policy and Public Administration (120)
- Information Security (117)
- Oceanography and Atmospheric Sciences and Meteorology (110)
- Other Computer Engineering (102)
- Chemistry (100)
- Transportation (93)
- Databases and Information Systems (89)
- External Galaxies (85)
- Meteorology (83)
- Life Sciences (79)
- Art and Design (74)
- Keyword
-
- Spartan Daily (2144)
- Newspaper (2122)
- Bibliometrics (161)
- Scientometrics (104)
- Mathematics and Statistics (88)
-
- Bibliometric (80)
- Articles (65)
- Machine learning (65)
- Refereed Publications (64)
- Scopus (59)
- Publications (58)
- Machine Learning (47)
- Authorship pattern (45)
- Physics and Astronomy (44)
- Authorship Pattern (43)
- Deep learning (43)
- Bibliometric Analysis (40)
- Citation Analysis (39)
- India (38)
- Scientometric (38)
- Bibliometric analysis (37)
- Galaxies: evolution (36)
- Research Productivity (36)
- Computer Science (35)
- Library (34)
- Education (33)
- Nigeria (33)
- Citation analysis (32)
- Web of Science (32)
- Galaxies: kinematics and dynamics (30)
- Publication Year
- Publication
-
- Spartan Daily (School of Journalism and Mass Communications) (2050)
- Library Philosophy and Practice (e-journal) (1402)
- Master's Projects (996)
- Faculty Publications (496)
- Master's Theses (414)
-
- Faculty Research, Scholarly, and Creative Activity (402)
- Mineta Transportation Institute (107)
- Faculty Publications, Chemistry (80)
- Faculty Publications, Meteorology and Climate Science (80)
- Comparative Philosophy (63)
- ART 108: Introduction to Games Studies (56)
- Dissertations (47)
- SWITCH (35)
- Emeritus and Retired Faculty Association (ERFA) Newsletter (25)
- Faculty Publications, Computer Science (24)
- Faculty Publications, Biological Sciences (23)
- State College Times, 1933 (17)
- State College Times, 1932 (15)
- Engineering at San Jose State University (14)
- Spartan Daily, 2016 (12)
- Impact (College of Education) (11)
- Spartan Daily, 2017 (11)
- Spartan Daily, 2019 (11)
- Special Libraries, 1965 (10)
- Special Libraries, 1966 (10)
- Special Libraries, 1970 (10)
- Faculty and Staff Publications (9)
- Special Libraries, 1969 (9)
- Special Libraries, 1975 (9)
- The Scientist (College of Science) (9)
- Publication Type
- File Type
Articles 151 - 180 of 6910
Full-Text Articles in Entire DC Network
Book Review On Epistemology Of Modality And Philosophical Methodology (Edited By Anand Jayprakash Vaidya And Duško Prelević), Kumar Rajan
Comparative Philosophy
No abstract provided.
A Place For Ancient Philosophy In Axial Age Historiography, John R. Shook
A Place For Ancient Philosophy In Axial Age Historiography, John R. Shook
Comparative Philosophy
Long-standing debates over historiographical approaches to the Axial Age have distracted the history of philosophy from its own disciplined inquiry into the breadth and depth of ancient thought beyond the Greeks. The philosopher Karl Jaspers offered a vista for seeing commonalities among ancient innovations and discerning continuities along history to modern times. That dual agenda divided Axial historiography with the question of whether axiality reflects creativities of ancient systems or have modern reflections created images of axiality. A singular chronology for humanity encourages a mode of philosophical history open to providential designs, epochal turns, spiritual evolutions, psychological leaps, or cognitive …
The Impact Of Early Life Experiences On Math Confidence, Nhu X. Hin
The Impact Of Early Life Experiences On Math Confidence, Nhu X. Hin
Master's Theses
Students form beliefs about their academic abilities through a combination of emotional experiences and early learning environments. While prior research has documented how math anxiety can undermine performance and how early experiences with math-typed activities can foster positive attitudes, less is known about how these factors collectively influence students’ math confidence. The present study investigates how math anxiety, engagement in childhood math-typed activities, and perceived support for math-related learning contribute to college students’ confidence in their math abilities. Participants (N = 102) completed self-report measures assessing each of these constructs. A multiple regression analysis revealed that the three predictors collectively …
Vertiport Location Selection And Optimization For Urban Air Mobility In Complex Urban Scenes, Yannan Lu, Weili Zeng, Wenbin Wei, Weiwei Wu, Hao Jiang
Vertiport Location Selection And Optimization For Urban Air Mobility In Complex Urban Scenes, Yannan Lu, Weili Zeng, Wenbin Wei, Weiwei Wu, Hao Jiang
Faculty Research, Scholarly, and Creative Activity
Vertiports, as dedicated facilities for electric vertical takeoff and landing (eVTOL) aircraft, are essential to ensure the efficiency and sustainability of Urban Air Mobility (UAM). However, UAM infrastructure site selection has become increasingly complex due to limited land availability, complex spatial conditions, and the need to balance multiple objectives. Focusing on passenger-carrying UAM operations, this study proposes a systematic framework for vertiport site selection. First, key factors are classified into high, medium, and low levels across the safety, economic, and social dimensions, forming a modular evaluation system. A GIS-based spatial screening process is developed to identify potential vertiport locations. Subsequently, …
Roadside Asset Extraction From Mobile Lidar Point Cloud, Yushin Ahn, Riadh Munjy, Stephen Choi
Roadside Asset Extraction From Mobile Lidar Point Cloud, Yushin Ahn, Riadh Munjy, Stephen Choi
Mineta Transportation Institute
Mobile LiDAR systems are powerful tools that help us map roads and their surroundings in 3D with great speed and precision. The data provided by these systems support urban planning efforts, digital mapping, transportation infrastructure maintenance, and more. This report presents a comprehensive workflow for roadside asset extraction using Mobile Terrestrial Laser Scanning (MTLS) data, focusing on road lane detection, cross-section slope analysis, and point cloud classification. Roadside asset extraction is the identification and classification of roadside features like signs and poles. The dataset, acquired using a high-resolution mobile LiDAR system, contains over 5.7 billion points (pieces of data) across …
Handling Skewness And Directional Tails In Model-Based Clustering, Cristina Tortora, Antonio Punzo, Brian C. Franczak
Handling Skewness And Directional Tails In Model-Based Clustering, Cristina Tortora, Antonio Punzo, Brian C. Franczak
Faculty Research, Scholarly, and Creative Activity
Model-based clustering is a powerful approach used in data analysis to unveil underlying patterns or groups within a data set. However, when applied to clusters that exhibit skewness, heavy tails, or both, the classification of data points becomes more challenging. In this study, we introduce two models considering two component-wise transformations of the observed data within a mixture of multiple scaled contaminated normal (MSCN) distributions. MSCN distributions are designed to enable a different tail behavior in each dimension and directional outlier detection in the direction of the principal components. Using the transformed MSCN distributions as components of a mixture, we …
Analyzing Sports Motion Using Calculus, Joshua Vidal, Maryam Khazaei Pool
Analyzing Sports Motion Using Calculus, Joshua Vidal, Maryam Khazaei Pool
Faculty Research, Scholarly, and Creative Activity
Calculus helps analyze sports motion by modeling a ball's vertical path as a quadratic fuction, capturing initial velocity, gravity, and height. Differentiating this function reveals velocity and acceleration, key to finding peak height, time to peak, and airtime. Using Python, we can accurately calculate and visualize these motions. Linear algebra further connects player skills like strength, technique, and accuracy to kick distance, enabling performance prediction and comparision.
Data Analysis & Ml: Analyzing Student Performance Data, Mingmar Sherpa, Maryam Khazaei Pool
Data Analysis & Ml: Analyzing Student Performance Data, Mingmar Sherpa, Maryam Khazaei Pool
Faculty Research, Scholarly, and Creative Activity
Multiple factors influence student performance, including demographics, institutional support, study habits, and prior academic results. While educational data mining (EDM) research has primarily examined online learning, traditional classroom settings remain understudied. Early performance indicators strongly predict final outcomes, making timely intervention crucial. However, current models predict more acurately during courses than before they begin, revealing a need for better pre-course forecasting.
The Isoperimetric Inequality For Asymptotically Cat(0) Groups, Edric D. Dabu
The Isoperimetric Inequality For Asymptotically Cat(0) Groups, Edric D. Dabu
Master's Theses
An asymptotically CAT(0) space is one where every ball of radius r is f(r)-CAT(0) for a fixed sublinear function f. An asymptotically CAT(0) group Γ is a group which acts properly and cocompactly by isometries on an asymptotically CAT(0) space X. Fix x0 ∈ X, choose D > 0 such that X = S γ∈Γ �� γ · B �� x0, D 3 ?? , define A = {a ∈ Γ : d(x0, a · x0) ≤ D + 1}, and let R be the set of reduced words in A of length at most 10 that represent the identity in …
Evaluation Of Windninja Simulations In Canyons And Complex Terrain, Marc Buchs
Evaluation Of Windninja Simulations In Canyons And Complex Terrain, Marc Buchs
Master's Theses
This study describes a validation of the surface wind model WindNinja conducted over different types of complex terrain. WindNinja is one of many software tools first responders use to better understand wind flow over such terrain. One approach to receive a higher resolution wind field to account for local terrain effects is to downscale numerical weather prediction model output with the help of WindNinja. 2 km resolution Weather Research and Forecasting model (WRF) output was used as input for our WindNinja simulations. We tested the surface wind model for two case sites in California characterized by canyons of different terrain …
Perceptions Of Department Chairs And Program Directors Of Ethnic Studies In The California State University System: A Convergent Parallel Mixed Methods Study, Christopher Jarrett Cox
Perceptions Of Department Chairs And Program Directors Of Ethnic Studies In The California State University System: A Convergent Parallel Mixed Methods Study, Christopher Jarrett Cox
Dissertations
The purpose of this dissertation study is to explore the conditions of Ethnic Studies departments and programs in the California State University (CSU) system nine years after the release of the CSU Ethnic Studies Task Force report released in 2016. Using a convergent parallel mixed methods analysis, this dissertation revisits several questions from the original CSU survey to assess the effectiveness of Ethnic Studies units in the CSU. Respondents to the survey included 13 of the 58 recognized department chairs and program directors for Ethnic Studies units among the 23 campuses of the CSU system, and interview participants included 5 …
How Effective Are Engineered And Non-Engineered Riparian Forest Restoration Projects In Providing Salmonid-Quality Habitat In The San Francisco Bay Area?, Alexander Ivanov
How Effective Are Engineered And Non-Engineered Riparian Forest Restoration Projects In Providing Salmonid-Quality Habitat In The San Francisco Bay Area?, Alexander Ivanov
Master's Theses
Streams and their riparian zones in the San Francisco Bay Area have been degraded, severely harming salmonid populations in the region. Ecological restoration is a common approach to return stream function. Such restoration projects vary widely in intensity, from low-impact vegetation removal/planting to highly engineered projects involving structures and grading. This research investigated the effectiveness of streams restored using engineered versus non-engineered solutions in supporting salmonid habitat viability in San Francisco Bay Area streams. Fourteen streams, seven from each of the two types of restoration, were sampled in the wet and dry season in 2024, three times each season. Data …
Quantization On Graph Neural Networks For Image Classification, Rithik Reddy Katpally
Quantization On Graph Neural Networks For Image Classification, Rithik Reddy Katpally
Master's Theses
Quantization has become a key approach for reducing storage and computational demands of deep neural networks while maintaining high accuracy. Although 8-bit quantization is well-established for convolutional architectures such as ResNet50 and MobileNetV2, its application to graph-based vision models remains underexplored. In this work, we extend quantization-aware training to Vision Graph Neural Networks (ViGs) and conduct comparisons with quantized CNNs on the CIFAR-100 dataset. To ensure parity, all models have same training hyperparameters such as learning rate, batch size, optimizer, number of epochs. We used numerous techniques to preserve performance for low-bit precision. First, Pauta Quantization clips activation outliers based …
Interactions Between A High Intensity Wildfire And An Atmopsheric Hydraulic Jump In The Case Of The 2023 Lahaina Fire, Clifford Dw Ehrke
Interactions Between A High Intensity Wildfire And An Atmopsheric Hydraulic Jump In The Case Of The 2023 Lahaina Fire, Clifford Dw Ehrke
Master's Theses
On 8 August 2023, a grass fire that started in the city of Lahaina, Hawai’i, grew into the deadliest wildfire in the United States since 1918. This wildfire offers a unique opportunity to explore the impact of high heat output on an atmospheric hydraulic jump and a downslope wind event. We conducted two WRF-SFIRE simulations to investigate these effects: one incorporating fire–atmosphere feedback and the other without it. We compare these WRF-SFIRE simulations to all available data regarding the fire event, including high resolution satellite data, weather station data from other parts of Maui and the Hawaiian Archipelago, and official …
Visions Of Kleinian Groups, Genevieve Nguyen
Visions Of Kleinian Groups, Genevieve Nguyen
Master's Theses
Discrete groups of M¨obius transformations, called Kleinian groups, act on the Riemann sphere. We explore the connection between M¨obius transformations and PSL(2,C), its subgroups, and linear algebraic properties to understand the dynamics of various Kleinian groups, including Fuchsian groups and Schottky groups. In particular, we use Mathematica to program visualizations of Schottky groups and their limit sets.
Quantum Algorithm Emulation Using Fpgas, Samuel Petruescu
Quantum Algorithm Emulation Using Fpgas, Samuel Petruescu
Master's Theses
Field Programmable Gate Arrays (FPGAs) have been used in most of the physics sub-fields for various unique purposes. This includes particle physics, quantum optics, and, more recently, quantum computing. FPGAs boast many benefits over previous experimental and computational setups. They are versatile, easy to program, and cost-effective, leading to an understandable desire to incorporate them into the new field of quantum computing. While FPGAs have been used to help control the readout and control of physical qubits, they can also be a good tool for improving algorithm simulations, which is the focus of this paper. Different algorithms have different computational …
"Are You My Counselor?" A Call To Action How Latinx General Counselors Can Support Latinx Student Retention Rates At California Community College Hispanic-Serving Institutions, Valentín García Cabrera
"Are You My Counselor?" A Call To Action How Latinx General Counselors Can Support Latinx Student Retention Rates At California Community College Hispanic-Serving Institutions, Valentín García Cabrera
Dissertations
Latinx students comprise the largest population within the California Community College (CCC) system, but experience disproportionately lower retention rates. This dissertation used a phenomenological qualitative design and testimonios collected from Latinx general counselors to explore factors influencing Latinx student retention. Sixteen tenured Latinx general counselors from ten Northern California Hispanic-serving community colleges served as participants. Guided by two research questions, the study explored counselors’ perspectives on the factors influencing Latinx community college students’ retention and the counseling strategies, services, and resources that General Counseling Departments should provide to support Latinx student retention. Grounded in Latinx Critical Race Theory, the study …
Contracts, Communication, And Contextual Integrity: A Case Study About Student Data Use In Higher Education, Joseph Fessehaye
Contracts, Communication, And Contextual Integrity: A Case Study About Student Data Use In Higher Education, Joseph Fessehaye
Dissertations
This case study examines the contractual agreements between the University of Missouri System and the California State University System with the Educational Advisory Board (EAB), focusing on how these contracts align with institutional student data privacy policies. The research utilizes a Policy Document Analysis approach and explores both universities’ strategic plans, student data privacy guidelines, and the third-party agreements with EAB, using a Contextual Integrity framework to analyze how student data is managed and protected. Through the analysis of these documents, this dissertation investigates whether the flow of student data within the context of these contracts meets institutional privacy standards …
Engagement Of Secondary History Social Science Teachers With Professional Development: A Phenomenological Study, Suzanne Paulazzo
Engagement Of Secondary History Social Science Teachers With Professional Development: A Phenomenological Study, Suzanne Paulazzo
Dissertations
Secondary social science teachers tend to feel disengaged and frustrated with their professional development (PD) experiences. They also feel that recommended meaningful practices appear to be time-consuming, require extra hours of preparation, and rely heavily on collaboration. Using phenomenological methodology, the dissertation research investigated secondary social science teachers' perceptions of their roles as educators, their professional growth, and their motivations for engaging in professional development opportunities. Nine male and one female teacher participants from a History-Social-Science Department in an urban public school in Northern California participated in an interview. This study addressed the following research questions: How do teachers perceive …
Using Facial Recognition For Selective Pose Detection, William J. Parker
Using Facial Recognition For Selective Pose Detection, William J. Parker
Master's Theses
Pose detection involves locating and identifying key body points for all individuals within a frame. This enables the ability to convert the pose into a digital format, which can then be recorded and analyzed for a variety of purposes. Advancements in the field have already opened applications in areas such as digital fitness coaches, fall detection, and virtual reality. Existing approaches primarily focus on tracking all detected individuals, which limits the practical applications when attempting to analyze a single or specific subject when there are other people in frame. Previous work has discussed integrating identification, but these approaches use identification …
Euler’S Formula For General Graph Embeddings, Doug Bauer, Linda Lesniak, Edward Schmeichel
Euler’S Formula For General Graph Embeddings, Doug Bauer, Linda Lesniak, Edward Schmeichel
Faculty Research, Scholarly, and Creative Activity
Consider an embedding of a graph G(v,e) with v≥1 vertices and e≥0 edges into a closed surface s, with r resulting regions. If G is connected and every region is a 2-cell (a so-called 2-cell embedding), Euler’s formula is the relation v−e+r=χ(s), where χ(s) denotes the Euler characteristic of s. Here we give a generalization of Euler’s formula which applies to any embedding (2-cell or not) of any graph (connected or not) into any surface (orientable or not), with several interesting corollaries. One rather striking corollary is the converse of Euler’s formula itself: If an embedding of a graph G(v,e) …
Aerosol-Cloud Interactions In Cirrus Clouds Based On Global-Scale Airborne Observations And Machine Learning Models, Derek Ngo, Minghui Diao, Ryan J. Patnaude, Sarah Woods, Glenn Diskin
Aerosol-Cloud Interactions In Cirrus Clouds Based On Global-Scale Airborne Observations And Machine Learning Models, Derek Ngo, Minghui Diao, Ryan J. Patnaude, Sarah Woods, Glenn Diskin
Faculty Research, Scholarly, and Creative Activity
Cirrus cloud formation and evolution are subject to the influences of thermodynamic and dynamic conditions and aerosols. This study developed near global-scale in situ aircraft observational datasets based on 12 field campaigns that spanned from the polar regions to the tropics from 2008 to 2016. Cirrus cloud microphysical properties were investigated at temperatures ≤-40 °C, including ice water content (IWC), ice crystal number concentration (Ni), and number-weighted mean diameter (Di). Positive correlations were found between the fluctuations of these ice microphysical properties and the fluctuations of aerosol number concentrations for larger (>500 nm) and smaller (>100 nm) aerosols …
Navigating Multiple Virtual Teams: How Variety In Communication Rules Affects Knowledge Sharing, Valerio Incerti, Kelly J. Fadel, Elisa Mattarelli, Fabiola Bertolotti, Francesca Bellesia, Paula Ungureanu, Katherine M. Chudoba
Navigating Multiple Virtual Teams: How Variety In Communication Rules Affects Knowledge Sharing, Valerio Incerti, Kelly J. Fadel, Elisa Mattarelli, Fabiola Bertolotti, Francesca Bellesia, Paula Ungureanu, Katherine M. Chudoba
Faculty Research, Scholarly, and Creative Activity
In contemporary workplaces, individuals are often members of more than one virtual team at a time, that is, they experience multiple virtual team membership (MVTM), and they are subjected to context variety due to different rules across their teams. The aim of this paper is to understand the relationship between context variety related to communication rules and knowledge sharing in situations of MVTM. We propose that context variety and switching between teams negatively affect the individual capability to acquire and provide knowledge resources in a team, due in part to an increased perception of role overload. Through an experimental study, …
On Two-Generator Subgroups Of Mapping Torus Groups, Naomi Andrew, Edgar Bering Iv, Ilya Kapovich, Stefano Vidussi, Peter Shalen
On Two-Generator Subgroups Of Mapping Torus Groups, Naomi Andrew, Edgar Bering Iv, Ilya Kapovich, Stefano Vidussi, Peter Shalen
Faculty Research, Scholarly, and Creative Activity
We prove that if (Formula presented.) is the mapping torus group of an injective endomorphism (Formula presented.) of a free group (Formula presented.) (of possibly infinite rank), then every two-generator subgroup (Formula presented.) of (Formula presented.) is either free or a (finitary) sub-mapping torus. As an application we show that if (Formula presented.) is a fully irreducible atoroidal automorphism, then every two-generator subgroup of (Formula presented.) is either free or has finite index in (Formula presented.).
Sjsu Erfa News, Summer 2025, San Jose State University, Emeritus And Retired Faculty Association
Sjsu Erfa News, Summer 2025, San Jose State University, Emeritus And Retired Faculty Association
Emeritus and Retired Faculty Association (ERFA) Newsletter
Volume 38, No 4
A Simple Model Of Spiral Galaxies From Geometric Optics, Bogdan Szafraniec, James N. Blake
A Simple Model Of Spiral Galaxies From Geometric Optics, Bogdan Szafraniec, James N. Blake
Faculty Research, Scholarly, and Creative Activity
We propose a simple model of spiral galaxies based on the interference of gravitational waves. The interference is deduced from geometric optics analysis of the refractive index profiles that mimic the behavior of gravitational potentials −1/r and r2. We analyze the refractive index profiles, n(r)2 = a + b/r and n(r)2 = a + br2, because they are realistically shaped and yield closed form solutions. The two profiles yield similar physical results, showing that the physical interpretation is not dependent on the exact details of the profile. The first profile yields trajectories that can …
The Impact Of Artificial Intelligence On Ecojustice And Ethics, Vishnu S. Pendyala
The Impact Of Artificial Intelligence On Ecojustice And Ethics, Vishnu S. Pendyala
Faculty Research, Scholarly, and Creative Activity
Artificial Intelligence (AI) has attained human-level performance in tasks like text summarization, machine translation, and code generation while handling multimodal data. Despite these advances, AI poses challenges such as generating false or biased outputs, causing discrimination, and exhibiting opaque decision-making processes that hinder bias mitigation. Additionally, training large language models (LLMs) for AI consumes substantial energy and can enable autonomous warfare, posing a threat to eco-justice, and raising sustainability concerns. Their ability to create realistic content poses the risk of misuse and perpetuating misinformation. This article addresses these ethical issues and presents solutions through regulation and technology, with examples of …
Contributions Of California Teacher Librarians To Student Achievement, Keith Curry Lance, Caitlin Gerrity
Contributions Of California Teacher Librarians To Student Achievement, Keith Curry Lance, Caitlin Gerrity
Learning Hub
This article assesses the contributions of California Teacher Librarians (TLs) to student achievement, specifically in the area of English Language Arts and Literacy. This comparison-of-means analysis employed two major datasets: the California Department of Education (CDE) school library evaluation survey and California Assessment of Student Performance and Progress (CAASPP) data, both for the 2022-23 school year. This study found that students who met or exceeded ELA standards were more likely to be in schools with: a full-time, certified TL rather than a part-time TL or no TL; a TL–full- or part-time–rather than no TL; a TL staffing a single library …
Large Language Models For Quantitative Analysis Of Statutory Stringency And Its Correlation With Sexual Assault Crime Rates, Samhita Konduri, Vishnu S. Pendyala
Large Language Models For Quantitative Analysis Of Statutory Stringency And Its Correlation With Sexual Assault Crime Rates, Samhita Konduri, Vishnu S. Pendyala
Faculty Research, Scholarly, and Creative Activity
Sexual assault (SA) crimes are among the most important issues for our current society to solve, with these crimes in particular having long-term consequences on victims and their communities. To solve this issue, one approach is to make laws and penalties for these crimes stricter. However, there have not been any studies on the relationship between stricter penalties and lower crime rates, especially about SA crimes, in a quantitative manner. The biggest barrier to conducting a quantitative study on the strictness of laws and statutes is the lack of a standardized measure of how strict a legal text is. This …
Influence Of Plasma Screening On High-Density Inverse Bremsstrahlung Absorption, D. Turnbull, R. K. Follett, M. Sherlock, D. J. Strozzi, J. Katz, D. Cao, N. R. Shaffer, K. Aytekin, D. H. Edgell, L. Stanton, D. H. Froula
Influence Of Plasma Screening On High-Density Inverse Bremsstrahlung Absorption, D. Turnbull, R. K. Follett, M. Sherlock, D. J. Strozzi, J. Katz, D. Cao, N. R. Shaffer, K. Aytekin, D. H. Edgell, L. Stanton, D. H. Froula
Faculty Research, Scholarly, and Creative Activity
A spherical-implosion platform diagnosed with the "beamlets"scattered-light detector provides high sensitivity to the impact of plasma screening on inverse bremsstrahlung absorption. Contrary to the more restrictive screening length suggested previously [D. Turnbull et al., Phys. Rev. Lett. 130, 145103 (2023)0031-900710.1103/PhysRevLett.130.145103; D. Turnbull et al., Phys. Plasmas 31, 063304 (2024)1070-664X10.1063/5.0203446], the beamlets data indicate that the electron-only Debye length is the relevant screening length for high-density inverse bremsstrahlung absorption. Using the updated absorption model, we simulate the OMEGA direct-drive inertial confinement fusion implosion database and show that bang times are well reproduced without any ad hoc multipliers.