Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2022

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 601 - 630 of 38472

Full-Text Articles in Entire DC Network

Applications Of Lean In Construction: Benefits From Using The Last Planner System, Mohsin Shareef Al Taie Dec 2022

Applications Of Lean In Construction: Benefits From Using The Last Planner System, Mohsin Shareef Al Taie

Doctoral Dissertations and Projects

Question: What are the benefits of using the Last Planner System in commercial construction projects in areas with high disruption, e.g. the Civil War in Iraq from 2005-2017. Purpose: The purpose of this research is to explore the benefits of using the Last Planner System with respect to the key project metrics of cost, safety, quality, and time performance in projects operating in highly disruptive environments. Very few qualitative studies have been done on the Last Planner System in commercial construction and none specifically studying work in areas of high disruption. Research Method: The study utilizes qualitative methodology with a …

Go to article

Using Popular Music To Engage The Multiculturally Diverse Secondary School Band, Todd Waldon Murphy Dec 2022

Using Popular Music To Engage The Multiculturally Diverse Secondary School Band, Todd Waldon Murphy

Doctoral Dissertations and Projects

Despite the increasing acceptance and enthusiasm for multicultural popular music in some high schools in the United States, traditional music teachers are often hesitant to embrace this trend. Even though the United States is responsible for creating many popular music styles, European music education philosophy is ahead with popular music education. Because of the United States' changing demographics, a new strategy must be developed to address this issue and implement it to the band director's advantage. Ethnic diversity and multiculturism have been creative factors in the United States, which explains why American culture has produced a wide variety of musical …

Go to article

A Causal-Comparative Study Of The Impact Of Meaningful Watershed Environmental Experiences On The Academic Achievement Of Middle School Students, Gina R. Mason Dec 2022

A Causal-Comparative Study Of The Impact Of Meaningful Watershed Environmental Experiences On The Academic Achievement Of Middle School Students, Gina R. Mason

Doctoral Dissertations and Projects

Meaningful watershed educational experiences (MWEE) are student-centered, problem solving-oriented environmental educational experiences in which students investigate local environmental issues leading to civic engagement and informed action. The four components of an MWEE include issue definition, outdoor field experience, synthesis and conclusion, and action projects. While multiple benefits have been shown to be gained through participation in environmental education, this study’s aim was to observe the impact MWEEs have on academic achievement in middle school students. This quantitative, ex post facto, causal-comparative study examined the impact MWEEs had on students’ achievement scores, as measured by Pennsylvania System of School Assessment (PSSA) …

Go to article

Defining Traffic Scenarios For The Visually Impaired, Judith Jakob, Kordula Kugele, József Tick Dec 2022

Defining Traffic Scenarios For The Visually Impaired, Judith Jakob, Kordula Kugele, József Tick

The Qualitative Report

For the development of a transfer concept of camera-based object detections from Advanced Driver Assistance Systems to the assistance of the visually impaired, we define relevant traffic scenarios and vision use cases by means of problem-centered interviews with four experts and ten members of the target group. We identify the six traffic scenarios: general orientation, navigating to an address, crossing a road, obstacle avoidance, boarding a bus, and at the train station clustered into the three categories: Orientation, Pedestrian, and Public Transport. Based on the data, we describe each traffic scenario and derive a summarizing table adapted from software engineering …

Go to article

Three Dimensional Cfd Simulation Model With Experimental Validation Of Silica Gel–Water Pair Adsorption Cooling Bed, Hesham Safwat, Taher Halawa Dec 2022

Three Dimensional Cfd Simulation Model With Experimental Validation Of Silica Gel–Water Pair Adsorption Cooling Bed, Hesham Safwat, Taher Halawa

Mechanical Engineering

In this paper, a three-dimensional full simulation model of a solar-driven adsorption cooling system integrated with user-defined functions (UDF) is successfully validated with a manufactured adsorption chamber filled with silica-gel type A. model is validated on the desorption phase with a maximum deviation error of 1.7%. Temperature with adsorption contours are shown for more understanding of the heat flow with adsorption behaviour inside the chamber in all directions. The maximum temperature at the desorption phase is reached after 300 seconds at fins area, and adsorption maximum uptake reached 0.16 kg/kg at fins wall but reached from 0.13 to 0.14 kg/kg …

Go to article

Arginine Methylation Of The Pgc-1Α C‑Terminus Is Temperature- Dependent, Meryl Mendoz, Mariel Mendoza, Tiffany Lubrino, Sidney Briski, Immaculeta Osuji, Janielle Cuala, Brendan Ly, Ivan Ocegueda, Harvey Peralta, Benjamin A. Garcia, Cecilia Zurita-Lopez Dec 2022

Arginine Methylation Of The Pgc-1Α C‑Terminus Is Temperature- Dependent, Meryl Mendoz, Mariel Mendoza, Tiffany Lubrino, Sidney Briski, Immaculeta Osuji, Janielle Cuala, Brendan Ly, Ivan Ocegueda, Harvey Peralta, Benjamin A. Garcia, Cecilia Zurita-Lopez

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

We set out to determine whether the C-terminus (amino acids 481–798) of peroxisome proliferator-activated receptor gamma coactivator-1 alpha (PGC-1α, UniProt Q9UBK2), a regulatory metabolic protein involved in mitochondrial biogenesis, and respiration, is an arginine methyltransferase substrate. Arginine methylation by protein arginine methyltransferases (PRMTs) alters protein function and thus contributes to various cellular processes. In addition to confirming methylation of the C-terminus by PRMT1 as described in the literature, we have identified methylation by another member of the PRMT family, PRMT7. We performed in vitro methylation reactions using recombinant mammalian PRMT7 and PRMT1 at 37, 30, 21, 18, and 4 °C. …

Go to article

Data Driven Classification Of Opioid Patients Using Machine Learning - An Investigation, Saddam Al Amin, Md Saddam Hossain Mukta, Md Sezan Mahmud Saikat, Md Ismail Hossain, Md Adnanul Islam, Mohiuddin Ahmed, Sami Azam Dec 2022

Data Driven Classification Of Opioid Patients Using Machine Learning - An Investigation, Saddam Al Amin, Md Saddam Hossain Mukta, Md Sezan Mahmud Saikat, Md Ismail Hossain, Md Adnanul Islam, Mohiuddin Ahmed, Sami Azam

Research outputs 2022 to 2026

The opioid crisis has led to an increased number of drug overdoses in recent years. Several approaches have been established to predict opioid prescription by health practitioners. However, due to the complex nature of the problem, the accuracy of such methods is not yet satisfactory. Dependable and reliable classification of opioid dependent patients from well-grounded data sources is essential. Majority of the previous studies do not focus on the users’ mental health association for opioid intake classification. These studies do not also employ the latest deep learning based techniques such as attention and knowledge distillation mechanism to find better insights. …

Go to article

Extension’S Use Of Zoom To Address A Public Health Risk Among Older Adults, Dorothy P. Brandon, Ciji L. Griffin, Darlene Minniefield, Danielle D. Rudolph, Donna L. Gullatte, Nkenge C. Hyter, Pamela G. Irby, Juana I. Christian, Cynthia L. Whittaker Dec 2022

Extension’S Use Of Zoom To Address A Public Health Risk Among Older Adults, Dorothy P. Brandon, Ciji L. Griffin, Darlene Minniefield, Danielle D. Rudolph, Donna L. Gullatte, Nkenge C. Hyter, Pamela G. Irby, Juana I. Christian, Cynthia L. Whittaker

Journal of Extension

Mandates that require social distancing and sheltering-in-place to stop the spread of the coronavirus have worsened an already concerning public health issue for older adults –social isolation and loneliness. Alabama Extension System at Alabama A&M University developed a program focused on helping older adults connect with family and friends. A descriptive study of 37 older adults indicated that their knowledge, ability, and comfort with implementing Zoom sessions increased significantly after completing the program. Findings show the potential use of the Zoom for Seniors program in preventing social isolation or loneliness among older adults.

Go to article

4-H Summer Of Stem: A Practical Approach To Increasing Workforce Readiness, Vernelle Mitchell-Hawkins, Jessica Mellon Dec 2022

4-H Summer Of Stem: A Practical Approach To Increasing Workforce Readiness, Vernelle Mitchell-Hawkins, Jessica Mellon

Journal of Extension

4-H Summer of STEM is a workforce readiness program for high school youth. The goals of the program are to increase students’ interest in STEM careers, improve college and workforce readiness, and connect youth to businesses and industries in the local community. Selected youth receive hands-on development of workforce readiness skills, are paired with a STEM mentor for job shadowing, and participate in college campus visits. Preliminary findings show that participants reported having a positive relationship between participation in 4-H youth development programs and career skills. This article introduces the 4-H Summer of STEM and offers suggestions for implementation.

Go to article

Using Anchor To Create Podcasts For Youth Audiences, Rebecca Mott, Kate Preston, Heath Brandt Dec 2022

Using Anchor To Create Podcasts For Youth Audiences, Rebecca Mott, Kate Preston, Heath Brandt

Journal of Extension

The Anchor podcasting tool provides an innovative way for Extension professionals to deliver information to youth, as well as promote further engagement. This article describes the process our team followed to create a series of career podcasts for middle school students using Anchor. We discuss benefits and considerations to keep in mind if you are considering launching a podcast of your own.

Go to article

Is There An Economic Advantage To Planting Diverse Summer Annual Forage Mixtures?, Kelly Mercier, Chris Teutsch, Ray Smith, Kenny Burdine, Edwin Ritchey, Eric Vanzant Dec 2022

Is There An Economic Advantage To Planting Diverse Summer Annual Forage Mixtures?, Kelly Mercier, Chris Teutsch, Ray Smith, Kenny Burdine, Edwin Ritchey, Eric Vanzant

Journal of Extension

This study examined economic implications of planting summer annual mixtures of grasses, legumes, and forbs at varying nitrogen rates. No differences in yield occurred between the three mixtures, indicating that mixtures with lowest seed cost will be most economical. Applying N resulted in yield increases of 12.26 lb DM per lb N applied. Although yield responses to N were positive, sensitivity analyses showed that applying N resulted in positive net returns only when hay prices were high and N prices were low. When utilization rates are accounted for, enterprise budgets determined grazing to be 18% cheaper to implement than haying.

Go to article

Accumulation Of Sublethal Radiation Damage And Its Effect On Cell Survival, Oleg N Vassiliev Dec 2022

Accumulation Of Sublethal Radiation Damage And Its Effect On Cell Survival, Oleg N Vassiliev

Faculty, Staff and Student Publications

Objective. Determine the extent of sublethal radiation damage (SRD) in a cell population that received a given dose of radiation and the impact of this damage on cell survival. Approach. We developed a novel formalism to account for accumulation of SRD with increasing dose. It is based on a very general formula for cell survival that correctly predicts the basic properties of cell survival curves, such as the transition from the linear-quadratic to a linear dependence at high doses. Using this formalism we analyzed extensive experimental data for photons, protons and heavy ions to evaluate model parameters, quantify the extent …

Go to article

Counseling Students’ Cognitive Complexity In A Group Dynamics Course: A Thematic Analysis, John Davison, Joel F. Diambra, Marianne Woodside, William Daniel Shirley, Rebecca Gaylor Dec 2022

Counseling Students’ Cognitive Complexity In A Group Dynamics Course: A Thematic Analysis, John Davison, Joel F. Diambra, Marianne Woodside, William Daniel Shirley, Rebecca Gaylor

Journal of Counselor Preparation and Supervision

Counselor education researchers maintain that cognitive complexity is an important ability for counselors-in-training (CIT) and professional counselors providing individual and group counseling (Duys & Hedstom, 2000; Granello, 2010; Welfare & Borders, 2010 Wilkinson, 2011). Cognitive complexity, simply defined as it relates to counseling, represents how CIT or professional counselors assemble multiple facets of a client’s situation for use in counseling (Granello, 2010). Research has linked the ability to construct a more or less complete picture from a client’s present circumstances to counseling effectiveness (Welfare & Borders, 2010). According to Bernard and Goodyear (2019) and Granello and Underfer-Babalis (2004), cognitive complexity …

Go to article

Effect Of Medium Type And Foliar Spray With Concentrations Of Nano Zinc, Chelated Iron And Normal On The Mineral Content For Strawberry Seedlings Duch. Fragaria×Ananassa, Ahmed Al-Dulaimy, Mustafa Mahmood Dec 2022

Effect Of Medium Type And Foliar Spray With Concentrations Of Nano Zinc, Chelated Iron And Normal On The Mineral Content For Strawberry Seedlings Duch. Fragaria×Ananassa, Ahmed Al-Dulaimy, Mustafa Mahmood

Hebron University Research Journal-A (Natural Sciences) - (مجلة جامعة الخليل للبحوث- أ (العلوم الطبيعيه

The study was conducted in a greenhouse at the department of Horticulture and Landscape Gardening, College of Agriculture, University of Anbar for the growing season 2019-2020 and 2020-2021 to study the effect type of the growth media and spraying with nano and normal zinc and iron on mineral content of Strawberry leaves. First factor (M) included three of agricultural media: (River soil and Peat moss 3:1), (River soil and "50% Coantail + 50% Alfalfa" 3:1) and (River soil and poultry waste 3:1). The second factor (S) consisted of spraying with zinc and iron nano and normal with the following concentrations …

Go to article

Wind-Powered Continuous Reverse Osmosis Water Desalination, Aliah Adriana Binti Khairul Hisham Dec 2022

Wind-Powered Continuous Reverse Osmosis Water Desalination, Aliah Adriana Binti Khairul Hisham

Discovery Undergraduate Interdisciplinary Research Internship

Water scarcity is a grave issue that is faced by lots of people worldwide. This phenomenon is further exacerbated by climate change, overpopulation, and water-intense industrial activities. To combat this issue, reverse osmosis (RO) water desalination system is broadly introduced in order to produce freshwater while maintaining the desired thermodynamic efficiency and economic feasibility. RO water desalination is a process of separating freshwater from salt water using a semi-permeable membrane. In status quo, there are various forms of energy present in RO system (e.g: hydraulic, mechanical, electrical energy, etc.) to power the hydraulic components. The conversion from one form of …

Go to article

Predicting Pilot-In-Training Success And Persistence In A United States University, Maria Chaparro Osman, Vivek Sharma, Cherrise Ficke, Rian Mehta, Brooke Wheeler, Meredith Carroll Dec 2022

Predicting Pilot-In-Training Success And Persistence In A United States University, Maria Chaparro Osman, Vivek Sharma, Cherrise Ficke, Rian Mehta, Brooke Wheeler, Meredith Carroll

Aeronautics Faculty Publications

Commercial pilot numbers have been on a decline since 2009, while in parallel, pilot demands continue to rise. In order to close the gap, airlines and companies need a steady stream of pilots-in-training who have successfully graduated. However, collegiate flight training programs have had issues with low retention and low success rates of pilots-in-training. The need to understand how to retain students within collegiate flight programs and increase success rates is vital to fill the gaps present within the aviation industry. Past studies have investigated predictive factors for pilots-in-training graduation persistence and the time it takes to graduate yielding similar …

Go to article

Effect Of Using Ecc Layer On The Flexural Performance Of Rc Beams Previously Strengthened With Eb Cfrp Laminates, Mohamed Emara, Ayman El-Zohairy, Mahmoud Fekry, Mohamed Husain Dec 2022

Effect Of Using Ecc Layer On The Flexural Performance Of Rc Beams Previously Strengthened With Eb Cfrp Laminates, Mohamed Emara, Ayman El-Zohairy, Mahmoud Fekry, Mohamed Husain

Faculty Publications

This paper studies the efficiency of applying an engineered cementitious composite (ECC) layer to the tensile surface of (RC) beams that were previously strengthened using externally bonded (EB) carbon fiber-reinforced polymer (CFRP) laminates. One control and ten strengthened RC beams were produced and tested utilizing a four-point loading regime. For strengthened beams, two beams were kept strengthened using only CFRP, and additional ECC layers were added to the rest of the strengthened beams. The CFRP width and overlap length and position were among the test factors. Experimental results revealed that strengthening RC beams with CFRP laminates enhanced both the stiffness …

Go to article

Deep Learning Models For Analysis Of Non-Destructive Evaluation Data To Evaluate Reinforced Concrete Bridge Decks: A Survey, Dayakar Naik Lavadiya, Sattar Dorafshan Dec 2022

Deep Learning Models For Analysis Of Non-Destructive Evaluation Data To Evaluate Reinforced Concrete Bridge Decks: A Survey, Dayakar Naik Lavadiya, Sattar Dorafshan

Civil Engineering Faculty Publications

Application of deep learning (DL) for automatic condition assessment of bridge decks has been on the raise in the last few years. From the published literature, it is evident that lot of research efforts has been done in identifying the surface defects such as cracks, potholes, spalling and so forth using supervised learning methods such as deep learning. However, the health of a reinforced concrete bridge deck is jeopardized substantially due to presence of subsurface defects. Subsurface defects in bridge decks are genearlly detected using non-destructive evaluation (NDE) methods. Interpertation of NDE data for autonomous deck evaluation requires development of …

Go to article

A Multicultural Approach To Evaluate Information Literacy Skills Of The University Students Of The Remote Areas Of Pakistan., Shahzadi Humbhi, Shabbir Tareen, Abdul Reheem, Alia Humbhi Dec 2022

A Multicultural Approach To Evaluate Information Literacy Skills Of The University Students Of The Remote Areas Of Pakistan., Shahzadi Humbhi, Shabbir Tareen, Abdul Reheem, Alia Humbhi

Library Philosophy and Practice (e-journal)

In today's world, information is vital for decision making. However, in the 21st century the abundance of information is also causing issues for the people having less expertise and knowledge for synthesizing and using it. The abundance is merely due to advancement in technology including information media, internet and printed books. The advancement in technology particularly the source of communicating information have intensified information complexity, which is, people receive much information in excess of needed and get confused that on which information basis they should make decisions. In this regard, having information literacy is considered one of the most …

Go to article

Feminine Body Between Appropriation And Tyranny In Sulaiman Al- Shatti’S Novel "Silence Extends", “Semiotic Reading”, Khitam Othman Al-Khouli Dec 2022

Feminine Body Between Appropriation And Tyranny In Sulaiman Al- Shatti’S Novel "Silence Extends", “Semiotic Reading”, Khitam Othman Al-Khouli

Association of Arab Universities Journal for Arts مجلة اتحاد الجامعات العربية للآداب

This paper addresses the phenomena of appropriation and tyranny in the face of the feminine body in the novel "Extending Silence" by the Kuwaiti novelist Sulaiman al- Shatti. It depends on the analytical method that includes the following elements: the connotation of the title, the authoritarian woman, the oppressed woman, and the semiotics of the body. It discusses the key phenomena that surface the novel. As regards the connotation of the title, it is an efficacious element that shows up the theme of silence that extends throughout the novel and becomes a dominant element in the space of the narrative …

Go to article

Potential Water Harvesting Sites Selection Using Spatial Multi-Criteria Modeling In Wadi Al Mujib Basin In Southern Jordan, Samer Alnawaiseh, Maysoon Alzghoul Dec 2022

Potential Water Harvesting Sites Selection Using Spatial Multi-Criteria Modeling In Wadi Al Mujib Basin In Southern Jordan, Samer Alnawaiseh, Maysoon Alzghoul

Association of Arab Universities Journal for Arts مجلة اتحاد الجامعات العربية للآداب

This study aims to select potential sites for water harvesting by using Spatial Multi-Criteria modeling in the Wadi Al-Mujib basin as this method is one of the most suitable methods applied in arid and semi-arid areas to take advantage of rainwater. The significance of the study is to identify the best sites of pits and dams suitable for collecting rainwater in the Wadi Mujib basin through developing a spatial model based on the technology of Geographic Information Systems (GIS) and Remote Sensing (RS). In analyzing and identifying the best suitable sites in the Wadi Mujib basin, this paper uses an …

Go to article

"I Am Primarily A Scientific Philologist": J.R.R. Tolkien And The Science/Technology Divide, Kristine Larsen Dec 2022

"I Am Primarily A Scientific Philologist": J.R.R. Tolkien And The Science/Technology Divide, Kristine Larsen

Journal of Tolkien Research

Presentation on Tolkien's writings on science and technology, New York Tolkien Conference, Baruch College, New York, March 17, 2019

Go to article

A Hybrid Artificial Intelligence Model For Detecting Keratoconus, Zaid Abdi Alkareem Alyasseri, Ali H. Al-Timemy, Ammar Kamal Abasi, Alexandru Lavric, Husam Jasim Mohammed, Hidenori Takahashi, Jose Arthur Milhomens Filho, Mauro Campos, Rossen M. Hazarbassanov, Siamak Yousefi Dec 2022

A Hybrid Artificial Intelligence Model For Detecting Keratoconus, Zaid Abdi Alkareem Alyasseri, Ali H. Al-Timemy, Ammar Kamal Abasi, Alexandru Lavric, Husam Jasim Mohammed, Hidenori Takahashi, Jose Arthur Milhomens Filho, Mauro Campos, Rossen M. Hazarbassanov, Siamak Yousefi

Machine Learning Faculty Publications

Machine learning models have recently provided great promise in diagnosis of several ophthalmic disorders, including keratoconus (KCN). Keratoconus, a noninflammatory ectatic corneal disorder characterized by progressive cornea thinning, is challenging to detect as signs may be subtle. Several machine learning models have been proposed to detect KCN, however most of the models are supervised and thus require large well-annotated data. This paper proposes a new unsupervised model to detect KCN, based on adapted flower pollination algorithm (FPA) and the k-means algorithm. We will evaluate the proposed models using corneal data collected from 5430 eyes at different stages of KCN severity …

Go to article

Commencement [Program], December 17, 2022, University Of Northern Iowa Dec 2022

Commencement [Program], December 17, 2022, University Of Northern Iowa

UNI Commencement Programs

The program of the commencement ceremonies, including a list of institutional leadership, a list of the departments by college, awards given at the ceremonies, and a list of undergraduate and graduate degree candidates. This commencement program is not an official graduate list.

Go to article

Amaryllis & Belladonna, Office Of Arts + Cultural Programming, Peak Performances At Montclair State University Dec 2022

Amaryllis & Belladonna, Office Of Arts + Cultural Programming, Peak Performances At Montclair State University

2022-2023 Artists Invoke the Powers of Community as They Bring Audiences Into Fiery, Mysterious, Illuminating Visions of Our World

Amaryllis & Belladonna are two new, modular, and interlocking projects by Brooklyn-based guitarist, composer, and MacArthur fellow Mary Halvorson. Amaryllis is a sextet that filters Halvorson’s compositional explorations of melody, harmony, and counterpoint through the lens of six master improvisers, arranged in a way that allows the music to unfold differently every time. Belladonna is a set of compositions written specifically for Halvorson on guitar plus The Mivos Quartet. Highlighting Halvorson’s compositional voice in a fresh context, the music is augmented by Halvorson’s guitar throughout, adding elements of chance and improvisation. Halvorson says, “Amaryllis features some of my favorite musicians …

Go to article

Dissecting Interactions Across Gene Regulatory Layers In C. Elegans, Morgan Taylor Dec 2022

Dissecting Interactions Across Gene Regulatory Layers In C. Elegans, Morgan Taylor

Biological Sciences Theses and Dissertations

The nematode Caenorhabditis elegans is a powerful tool for studying nervous system genetics. Though relatively simple compared to mammals, C. elegans boasts a remarkably well-conserved neuronal genome and proteome, and its utility in the characterization of neuronal genes has been well-established. However, gene expression is often controlled by complex interactions between multiple genes, and teasing apart the functions of individual genes within such networks remains a challenge. Dissecting these interaction networks is crucial in determining the multifaceted functions of important, conserved regulatory genes. Here we explore interactions between gene regulatory layers in the C. elegans nervous system, employing a synthetic …

Go to article

Digital Platform To Aid Youth Substance Abuse Prevention, Bingxuan Li Dec 2022

Digital Platform To Aid Youth Substance Abuse Prevention, Bingxuan Li

Discovery Undergraduate Interdisciplinary Research Internship

Through research and interviews, I discovered that a significant portion of students in Africa become drug addicts and drop out of school. The solution is to prevent youth substance abuse before it happens, so that more students in Africa may continue their education. With the strong motivation of expanding African student involvement in higher education, I participated DURI program to increase higher education rates in the Democratic Republic of the Congo, Africa. The local government is establishing rehabilitation centers to monitor at-risk students and prevent youth substance abuse, but due to extremely limited resources, it is critical to evaluate the …

Go to article

Comparison Of Arctic Alaska Historical Snow Data With Satellite-Derived Benchmarks And Model Results Using Ilamb Software, Mary Szatkowski Dec 2022

Comparison Of Arctic Alaska Historical Snow Data With Satellite-Derived Benchmarks And Model Results Using Ilamb Software, Mary Szatkowski

Engineering

Understanding and modeling the permafrost system, hydrologic cycle, energy balance, and biologic systems in the Arctic are dependent, in part, on snow depth and snow distribution. Point-source snow measurements provide ground-truth observations of snow depth and snow water equivalent, although these measurements may be limited in their spatial and temporal distributions. Satellite-derived remote sensing products and gridded model output provide spatial coverage of snow properties, but their applicability is affected by their balance of resolution, computational speed, and accuracy confidence. The goal of this research is to assess the performance of three snow data products derived from remote sensing techniques …

Go to article

Towards Multipronged On-Chip Memory And Data Protection From Verification To Design And Test, Senwen Kan, Jennifer Dworak Dec 2022

Towards Multipronged On-Chip Memory And Data Protection From Verification To Design And Test, Senwen Kan, Jennifer Dworak

Computer Science and Engineering Theses and Dissertations

Modern System on Chips (SoCs) generally include embedded memories, and these memories may be vulnerable to malicious attacks such as hardware trojan horses (HTHs), test access port exploitation, and malicious software. This dissertation contributes verification as well as design obfuscation solutions aimed at design level detection of memory HTH circuits as well as obfuscation to prevent HTH triggering for embedded memory during functional operation. For malicious attack vectors stemming from test/debug interfaces, this dissertation presents novel solutions that enhance design verification and securitization of an IJTAG based test access interface. Such solutions can enhance SoC protection by preventing memory test …

Go to article

An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis, Jiahua Li Dec 2022

An Efficient Integrated Circuit Simulator And Time Domain Adjoint Sensitivity Analysis, Jiahua Li

Electrical Engineering Theses and Dissertations

In this paper, we revisit time-domain adjoint sensitivity with a circuit theoretic approach and an efficient solution is clearly stated in terms of device level. Key is the linearization of the energy storage elements (e.g., capacitance and inductance) and nonlinear memoryless elements (e.g., MOS, BJT DC characteristics) at each time step. Due to the finite precision of computation, numerical errors that accumulate across timesteps can arise in nonlinear elements.

Go to article

First Prev Next Last