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

Digital Commons Network™

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

Discipline
Institution
Keyword
Publication Year
Publication
Publication Type
File Type

Articles 11851 - 11880 of 732791

Full-Text Articles in Entire DC Network

Review Of Lockean Property Ethics And Restitution, Nathan Jun Jan 2026

Review Of Lockean Property Ethics And Restitution, Nathan Jun

2026 Faculty Bibliography

No abstract provided.


A Field Test Of The Role Of Biofluorescence In Territorial Salamanders, Kasey Watterson, Cari-Ann M. Hickerson, Carl Anthony Jan 2026

A Field Test Of The Role Of Biofluorescence In Territorial Salamanders, Kasey Watterson, Cari-Ann M. Hickerson, Carl Anthony

2026 Faculty Bibliography

Biofluorescence is recognized as an important form of visual communication, yet its function remains largely untested in many terrestrial species. In Eastern Red-Backed Salamanders (Plethodon cinereus), fluorescence of the postcloacal gland is a sexually dimorphic trait most strongly expressed in males. Because fluorescence can be displayed during territorial contests, we hypothesized that fluorescence in male P. cinereus would be positively related to resource holding potential (RHP) of territorial residents in the field. To test this hypothesis, we examined the relationship between fluorescence and two separate variables: body condition (as a proxy for RHP) and territory quality (the expected payoff from …


Does Voluntary Manslaughter Exist In South Dakota?, Gregory Brazeal Jan 2026

Does Voluntary Manslaughter Exist In South Dakota?, Gregory Brazeal

South Dakota Law Review

The American legal tradition generally distinguishes between cold-blooded, premeditated intentional killing and hot-blooded, spontaneous intentional killing. The former has traditionally been categorized as murder and the latter as the lesser crime of “voluntary manslaughter.” South Dakota’s homicide statutes, interpreted based on their plain meaning, depart from this deeply rooted tradition. The closest equivalent to the crime of voluntary manslaughter appears in South Dakota’s first-degree manslaughter statute, which includes a prohibition on homicide “[w]ithout any design to effect death . . . and in a heat of passion, but in a cruel and unusual manner.” The phrase “heat of passion” suggests …


Bundle Of Bytes: The Legal And Ethical Considerations For The Transfer, Ownership, And Disposition Of Digital Assets, Wendy Donelan Madsen Jan 2026

Bundle Of Bytes: The Legal And Ethical Considerations For The Transfer, Ownership, And Disposition Of Digital Assets, Wendy Donelan Madsen

South Dakota Law Review

The right to transfer, own, and dispose of one’s assets after death is one of Americans’ most cherished rights. For most of the last century, Americans primarily held tangible assets, which were sufficiently managed through estate administration laws. Some key rights, such as transferring, owning, and disposing of tangible assets, are well understood by the bundle of sticks analogy common in property law. However, in the twenty-first century, Americans have accumulated significant digital assets that also require transfer, ownership, and disposition. Yet the current laws governing intangible assets do not adequately address these needs. Therefore, the bundle of bytes offers …


Guía Para Padres Y Familias, 2026-2027, Illinois State University, Dean Of Students Office, Parent And Family Services Jan 2026

Guía Para Padres Y Familias, 2026-2027, Illinois State University, Dean Of Students Office, Parent And Family Services

Parent and Family Guide

Campus guide prepared by the Illinois State University Dean of Students Office's Parent and Family Services Department


From Sorochyntsi To St. Petersburg: National Identity In The Works Of Nikolai Gogol, Gary Jay Kogoy Jr. Jan 2026

From Sorochyntsi To St. Petersburg: National Identity In The Works Of Nikolai Gogol, Gary Jay Kogoy Jr.

Honors Theses

Nikolai Gogol's extant works depict a man torn between his birthplace of Ukraine and the nineteenth-century milieu of Imperial Russia. Notably, he did not reveal his name for some time after publishing his first story collection Evenings on a Farm Near Dikanka; as a result, readers attributed the tales of Ukrainian life within not to Gogol, but to the charming "Ukrainian jester" persona of Rudy Panko. Even after revealing his identity and garnering respect in the St. Petersburg literary scene, his contemporaries often viewed him as sly and suspicious because of his ancestry. Perhaps due to external doubts regarding …


The Role Of Mscs In The Il23/17 Pathway And Their Response To Mechanical Stress, Norma Aileen Dominguez Jimenez Jan 2026

The Role Of Mscs In The Il23/17 Pathway And Their Response To Mechanical Stress, Norma Aileen Dominguez Jimenez

Honors Theses

Mechanical stress plays a central role in shaping cellular behavior within skeletal tissues. At the enthesis, where tendons and ligaments attach to bone, repeated mechanical loading is strongly associated with inflammation and the development of ankylosing spondylitis (AS). Although mesenchymal stem cells (MSCs) are known to contribute to tissue structure and repair at these sites, their potential role in inflammatory signaling, particularly within the I 23/IL 17 pathway, remains unclear. In this thesis I investigated whether MSCs are capable of expressing cytokines involved in this pathway and how mechanical stress and differentiation influence this expression. Using the mouse derived C3H/10T1/2 …


Braided Thoughts: Beautifully Indigenous, Trinity Gould Jan 2026

Braided Thoughts: Beautifully Indigenous, Trinity Gould

OTD 721: Cultural Responsiveness & Occupation

I am an enrolled tribal member of the Spokane Tribe, and I have cultural ties to the surrounding tribes as well. I have a daughter who is currently a first line descendent of my tribe through me, and I want to tell my daughter the importance of our shared culture.

I want to show her through this zine a snippet of our culture traditions and practices to educate her that our culture is still here and we should be proud of who we are and our culture. I want her to uphold our traditions to carry on to the next …


Looking Out, Looking In: Air Travel, Culture, & Occupational Justice, Ashley Compton Jan 2026

Looking Out, Looking In: Air Travel, Culture, & Occupational Justice, Ashley Compton

OTD 721: Cultural Responsiveness & Occupation

As I continue becoming an occupational therapist, I've found myself caring more deeply about accessibility, inclusion, and the different ways people experience participation in meaningful occupations. This zine gave me the opportunity to think about travel as a meaningful occupation that can be shaped by culture, identity, privilege, accessibility, and opportunity.

Travel, particularly air travel, has shaped so much of who I am, and creating this zine helped me think more deeply about what it means to participate in the world. My hope is that it encourages others to think about who may be left out and how we can …


Stitched With Purpose, Abigail Gooler Jan 2026

Stitched With Purpose, Abigail Gooler

OTD 721: Cultural Responsiveness & Occupation

I chose this topic for this zine because fiber arts have become a meaningful part of my life. What began as a hobby during the COVID pandemic has grown into a way for me to manage stress, find purpose through creating, and build a small business.

This project deepened my understanding of occupational justice and the way that occupations are shaped by culture, gender, access, and social determinants of health. It challenged me to view what is an everyday occupation for me as culturally significant and, at times, political.

This project also reminded me of the privilege I have to …


Cochlear Micropump Drug Delivery System: A Noninvasive Technique For Murine Intracochlear Drug Delivery, Janette Collins Jan 2026

Cochlear Micropump Drug Delivery System: A Noninvasive Technique For Murine Intracochlear Drug Delivery, Janette Collins

Theses

In a 2018 World Health Organization (WHO) study, over 400 million people worldwide were affected by hearing loss (World Health Organization, 2023). Cochlear implants have provided a conventional route to aid inner ear issues but are ineffective either delivering to unintended targets or delivering unknown concentrations of a particular drug and create toxicity to the user. With medical advances and using 3-D printing technology, new opportunities to use programmable drug delivery systems to treat auditory disorders have been created. Borkholder Labs in Rochester, NY have created and improved a miniaturized implantable and scalable peristaltic micropump that provides programmable and accurate …


The Impact Of Teachers’ Roles As Boundary Crossers And Boundary Objects In Post- Covid Composition Instruction, Tammie Marie Pierce Jan 2026

The Impact Of Teachers’ Roles As Boundary Crossers And Boundary Objects In Post- Covid Composition Instruction, Tammie Marie Pierce

Theses and Dissertations

This qualitative case study examined secondary English Language Arts (ELA) teachers’ perceptions of rapid technology integration and its influence on composition instruction and cognitive load in physical, digital, and hybrid spaces. Grounded in theories of boundary crossing and the Cognitive Theory of Multimedia Learning, the study conceptualized teachers as both boundary crossers, navigating instructional spaces, and boundary objects, serving as the support tools for their students’ transitions into digital composition. Data were collected from five ELA teachers in a rural school district through surveys, individual interviews, and questionnaires, and analyzed using a two-phase coding process. Findings indicate that teachers perceived …


Evaluating Rate Of Perceived Exertion And Heart Rate In High School Weight Training Students For Assessing, Enhancing, And Maintaining Health-Related Fitness, Nicholas Searcy Jan 2026

Evaluating Rate Of Perceived Exertion And Heart Rate In High School Weight Training Students For Assessing, Enhancing, And Maintaining Health-Related Fitness, Nicholas Searcy

Theses and Dissertations

This mixed-methods study evaluated the relationship between rating of perceived exertion (RPE) and heart rate (HR) among high school weight-training students during circuit training sessions. The purpose of this study was to determine whether RPE could serve as a practical method for gauging moderate to vigorous physical activity (MVPA) among high school weight-training students while allowing students to assess and enhance their health-related components of fitness. Participants were high school students enrolled in weight-training classes who completed upper- and lower-body circuit training sessions over a 4-week period, or a total of 16 school days. RPE was self-reported using Borg’s CR10 …


Affects Of Ai In The Arts, Carolina D. Maldonado Faria Jan 2026

Affects Of Ai In The Arts, Carolina D. Maldonado Faria

Theses and Dissertations

Art is an essential part of society, shaping culture, communication, and the digital world through forms such as music, writing, film, and animation. However, the rise of Artificial Intelligence (AI) has created conflict in the creative industry. Many AI systems are trained using artists’ works without consent, raising concerns about copyright infringement, intellectual property theft, and the loss of artistic value. While AI was originally intended as a tool for innovation, it now threatens artists’ careers and profits by imitating human creativity. This issue highlights the need for ethical regulations, stronger copyright protections, and fair compensation systems so AI and …


Timbral Effects Of 3d Printing Brass Wind Musical Instruments: A Comparison Between Traditional And 3d Printed Construction, Cole K. Zelman Jan 2026

Timbral Effects Of 3d Printing Brass Wind Musical Instruments: A Comparison Between Traditional And 3d Printed Construction, Cole K. Zelman

Theses and Dissertations

This study explores the timbral effects that manufacturing wind instruments from thermoplastics (via 3D printing) has in comparison to traditionally made instruments. The project mainly focuses on the individual properties of different thermoplastics in comparison to traditional materials like brass. The instrument tested is a C bugle for a simple example of a brass wind instrument and is compared directly against the traditional brass construction. Results employ spectral centroid, spectrograms, and professional subjective analysis to compare the different thermoplastic test samples to the control brass bugle.


Green Synthesis Of Tio2 Nanoparticles Via Graphene Oxide-Doped Malabar Spinach Leaf Extract For Perovskite Solar Cells, Nofrijon Sofyan, Ichsan Pandu Wicaksono, Fiona Angellinnov, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara Jan 2026

Green Synthesis Of Tio2 Nanoparticles Via Graphene Oxide-Doped Malabar Spinach Leaf Extract For Perovskite Solar Cells, Nofrijon Sofyan, Ichsan Pandu Wicaksono, Fiona Angellinnov, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara

Baghdad Science Journal

This study investigates a green synthesis route for titanium dioxide (TiO2) nanoparticles (NPs) using Malabar spinach (Basella rubra) leaf extract, with graphene oxide (GO) as a dopant, for application as an electron transport layer in perovskite solar cells (PSCs). The synthesized TiO2 NPs were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), ultraviolet-visible diffuse reflectance spectroscopy (UV-Vis DRS), and field emission scanning electron microscopy equipped with energy dispersive X-ray spectroscopy (FESEM/EDX). XRD results confirmed the presence of a pure anatase phase with a smaller crystallite size than that of commercial TiO2, …


Influence Of Solvent Type On The Morphology And Mechanical Properties Of Electrospun Pmma Nanofibers, Mohd Khairulniza Mansor, Ahmad Faiza Mohd, Khairunnadim Ahmad Sekak, Norhanifah Mohd Yazid, Nurul Fatahah Asyqin Zainal, Yong Kok Chong Jan 2026

Influence Of Solvent Type On The Morphology And Mechanical Properties Of Electrospun Pmma Nanofibers, Mohd Khairulniza Mansor, Ahmad Faiza Mohd, Khairunnadim Ahmad Sekak, Norhanifah Mohd Yazid, Nurul Fatahah Asyqin Zainal, Yong Kok Chong

Baghdad Science Journal

Electrospinning is a versatile and widely used technique for producing nanofibers with controlled morphology and high surface area, essential for applications in filtration, biomedical engineering, and sensors. The choice of solvent plays a crucial role in determining the efficiency of the electrospinning process and the properties of the resulting fibers. In this study, poly(methyl methacrylate) (PMMA) nanofibers were fabricated via electrospinning using four different solvents: tetrahydrofuran (THF), dimethylformamide (DMF), chloroform (CHCl3), and acetone at a 20% (w/w) polymer concentration. Surface tension tests revealed that DMF exhibited the highest surface tension, at 40.11 mN/m, which influenced fiber formation. Electrospinning …


Effect Of Demineralization And Physical Activation In Enhancing The Porosity And Adsorption Properties Of Recovered Carbon Black Pyrolyzed From Waste Tire, Siti Nuramirah Rabbani Muhammad Zaki, Nurul Fatahah Asyqin Zainal, Hartini Ahmad Rafaie, Suhaila Idayu Abdul Halim, Chia Chay Tay Jan 2026

Effect Of Demineralization And Physical Activation In Enhancing The Porosity And Adsorption Properties Of Recovered Carbon Black Pyrolyzed From Waste Tire, Siti Nuramirah Rabbani Muhammad Zaki, Nurul Fatahah Asyqin Zainal, Hartini Ahmad Rafaie, Suhaila Idayu Abdul Halim, Chia Chay Tay

Baghdad Science Journal

This research aims to improve the porosity structure and adsorption characteristics of rCB through demineralization and physical activation techniques. Hydrochloric acid (HCl) at various concentrations (1, 5, 6, and 10 M) was employed for demineralization, followed by the addition of 6 M potassium hydroxide (KOH). Physical activation was conducted at temperature ranges of 300, 350, 400, 450, and 500°C for durations of 1, 2, and 3 h. Characterization of rCB was conducted using Fourier Transform Infrared Spectroscopy (FTIR), ash content analysis, Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES), Brunauer-Emmett-Teller (BET), and iodine adsorption number (IAN). Demineralization decreased the ash content …


Double-Layered Tin-Polydimethylsiloxane (Pdms) Composites: Evaluation Of Porosity And Structural Morphology Of Polymeric Composites, Nurul Syafiqah Roslan, Nur Maizatul Azra Mukhtar, Ainorkhilah Mahmood, Nor Aimi Abdul Wahab, Rafidah Zainon, Hanisah Zainal Abidin, Aishah Zarzali Shah, Nor Iwani Nor Izaham Jan 2026

Double-Layered Tin-Polydimethylsiloxane (Pdms) Composites: Evaluation Of Porosity And Structural Morphology Of Polymeric Composites, Nurul Syafiqah Roslan, Nur Maizatul Azra Mukhtar, Ainorkhilah Mahmood, Nor Aimi Abdul Wahab, Rafidah Zainon, Hanisah Zainal Abidin, Aishah Zarzali Shah, Nor Iwani Nor Izaham

Baghdad Science Journal

The pursuit of advanced materials for radiation protection has highlighted the potential of polymer–metal composites. Porosity is a key factor influencing radiation attenuation, as fewer voids reduce pathways for radiation penetration. Recent studies emphasize the role of filler distribution in enhancing both mechanical properties and shielding performance. This work investigates the structural morphology and porosity of tin–PDMS composites prepared with pure tin (PS) and tin alloy (AS) fillers at 10–60 wt.% loadings, along with a tin–alloy mixture series (TM). Morphological features, particle distribution, oxygen content, and porosity were comprehensively analyzed. Results show that porosity strongly correlates with filler distribution and …


Diatom Community Response To High And Low Iron Upwelling Plumes In The California Current System, Sveinn V. Einarsson, Kimberly Powell, Claire Till, Tyler Coale, P. Dreux Chappell Jan 2026

Diatom Community Response To High And Low Iron Upwelling Plumes In The California Current System, Sveinn V. Einarsson, Kimberly Powell, Claire Till, Tyler Coale, P. Dreux Chappell

OES Faculty Publications

Diatoms are important primary producers, accounting for most of the oceanic production and carbon export relative to other photosynthetic eukaryotes. There are important differences among diatom species that enable them to proliferate in different environments. Some have nutrient storage capabilities or lower nutrient quotas suited for oligotrophic oceans. Bloom-forming diatoms are typically found in nutrient-rich coastal waters where they respond quickly to nutrient pulses and can influence biogeochemical cycling in the ocean after blooms. As many physiological differences affect biomass and export, it is important to better understand how physical and chemical parameters influence diatom community composition, especially in dynamic …


Microbial Mats In Dinosaur Ichnocoenoses, Nora Noffke, Paul C. Murphy, Roger C. Buntin, Martin G. Lockley Jan 2026

Microbial Mats In Dinosaur Ichnocoenoses, Nora Noffke, Paul C. Murphy, Roger C. Buntin, Martin G. Lockley

OES Faculty Publications

Until now, the significance of microbial mats in preservation of dinosaur tracks and in reconstructing the palaeoenvironment in which dinosaurs roamed was rarely studied. Dinosaur tracks are commonly found close to ancient aquatic bodies where moist sediment had once allowed footstep registration. At such sites, epibenthic or endobenthic microbial mats may have developed as well and may have led to exquisite track preservation. Microbial mats in coastal, lacustrine or flood plain environments cause 'microbially induced sedimentary structures—MISS', which are micobialites found in sandy or evaporitic settings. The microbial structures record environmental parameters including meteorological conditions that existed at the time …


Code-Net++: An Attention-Guided Deep Learning Framework With Grad-Cam-Based Explainability For Covid-19 Detection Using Chest X-Ray Images, Fareesa Amina, Dr Krishnanaik Vankdoth Jan 2026

Code-Net++: An Attention-Guided Deep Learning Framework With Grad-Cam-Based Explainability For Covid-19 Detection Using Chest X-Ray Images, Fareesa Amina, Dr Krishnanaik Vankdoth

Mansoura Engineering Journal

Chest radiograph imaging has emerged as a practical and scalable diagnostic modality for respiratory diseases, including COVID-19. However, accurate discrimination of COVID-19 manifestations from other pulmonary abnormalities remains challenging because of low contrast, imaging noise, and overlapping radiographic patterns. This work presents CODE-NET++, an enhanced attention-guided deep learning framework with Grad-CAM-based explainability for reliable COVID-19 detection using chest X-ray images. The proposed framework integrates adaptive trilateral filtering for image enhancement, Reverse Edge Attention Network (RE-Net) for lesion-aware segmentation, and an Enhanced LinkNet architecture with dilated convolutions for multiscale feature extraction and classification. Grad-CAM-based explainable artificial intelligence visualization is incorporated to …


University Of Central Florida Graduate Catalog, 2025-2026, University Of Central Florida Jan 2026

University Of Central Florida Graduate Catalog, 2025-2026, University Of Central Florida

UCF Catalogs

No abstract provided.


Objective Assessment In Experiential Learning Contexts, Lily M. Brutger Jan 2026

Objective Assessment In Experiential Learning Contexts, Lily M. Brutger

All Electronic Theses and Dissertations

Experiential learning is widely recognized as a powerful approach to education; however, empirical evidence demonstrating its effectiveness remains limited. This gap in the literature is due less to the value of experiential learning itself than to the challenges of assessing learning within experiential contexts. Drawing on the foundational experiential learning theories of Kolb (1984) and Joplin (1981), as well as contemporary research on assessment validity and practice, this paper examines the relationship between assessment and experiential learning. It argues that purposeful, objective assessment is essential for maximizing student learning and supporting the credibility of experiential education. The paper synthesizes current …


Meconium Metal Concentrations And Infant Temperament And Development, Fiona Fogarty Jan 2026

Meconium Metal Concentrations And Infant Temperament And Development, Fiona Fogarty

Dissertations and Theses

BACKGROUND: Prenatal exposure to metals poses significant health consequences for early childhood development. Understanding the factors influencing metal concentrations that infants are exposed to in-utero is crucial for developing targeted interventions, particularly when maternal characteristics and environmental factors, may contribute to varying levels. Meconium offers insight into in-utero exposures for the developing infant, and the effect of each individual metal may be mediated or exacerbated by another and therefore should be studied in the context of a mixture. The effect of metal mixture exposure, as measured in meconium, on milestone and temperament outcomes has yet to be determined.

DESIGN: …


Long-Term Compositional Shifts In The Fish Community Of The Wabash River, Olivia R. Wertman Jan 2026

Long-Term Compositional Shifts In The Fish Community Of The Wabash River, Olivia R. Wertman

Masters Theses

There is concern about declining biodiversity in the world today and an increasing need to monitor biodiversity through collecting data and gauging changes occurring in biodiversity over time. Large river fish communities are one area of particular interest due to their sensitivity to environmental changes. One program seeking to address this is the Long-Term Survey and Assessment of Large River Fishes, LTEF, which monitors fish populations in the large rivers of Illinois. In this study, I assessed changes in the fish community of the lower 322 km of the Wabash River from 2010-2025 using annual direct current boat electrofishing surveys …


Testing The Influence Of Increased Predation On The Evolution Of Morphological Coloration Plasticity In Trinidadian Killifish (Anablepsoides Hartii), Alyssa M. Laux Jan 2026

Testing The Influence Of Increased Predation On The Evolution Of Morphological Coloration Plasticity In Trinidadian Killifish (Anablepsoides Hartii), Alyssa M. Laux

Biology Theses

The ability to camouflage is a widespread trait in both vertebrates and invertebrates that enhances survival in risky environments. The ability of organisms to respond to shifts in environmental conditions and change color is a conspicuous example of camouflage. Such coloration plasticity can occur rapidly (seconds to minutes) versus longer periods of time (days to months). There are numerous examples of physiological coloration plasticity (short-term) and morphological coloration plasticity (long-term). Yet, there are few tests of the conditions that drive the evolution of physiological vs. morphological coloration plasticity. In this study we use Trinidadian killifish (Anablepsoides hartii) as …


Effect Of Mid-Range Ultraviolet Light On Avian Embryonic Development, Keelie Hughes Jan 2026

Effect Of Mid-Range Ultraviolet Light On Avian Embryonic Development, Keelie Hughes

Biology Theses

While it is a known fact that specific environmental conditions must be met to ensure proper embryonic development, the impact of changes in this delicate balance is unclear. Ultraviolet (UV) light has a narrow range of effectiveness in mature tissue, where too little can hinder molecular signaling and too much can cause damage to genetic material. This study exposed in ovo chicken embryos in the preliminary stages of development to mid-range UV radiation to examine developing embryo and tissue morphology using anthropometric methods and comparing proliferative cells among embryos exposed to varying doses of UV light. Additionally, quantitative polymerase chain …


A Machine Learning–Based Framework For Traffic Classification And Threshold-Based Load Management In 5g Network Slicing, Safi Ibrahim, Younis S. Younis, Kamal S. Hamza, Mohamed M. Ashour Jan 2026

A Machine Learning–Based Framework For Traffic Classification And Threshold-Based Load Management In 5g Network Slicing, Safi Ibrahim, Younis S. Younis, Kamal S. Hamza, Mohamed M. Ashour

Mansoura Engineering Journal

This study proposes a machine learning–based framework that applies machine learning techniques to improve the efficiency of 5G network slicing through automated traffic classification and threshold-based load management . The proposed model optimizes resource allocation among the three standardized 5G slice types: enhanced Mobile Broadband (eMBB), ultra-Reliable Low-Latency Communication (URLLC), and massive Machine-Type Communication (mMTC). Two supervised learning algorithms—K-Nearest Neighbors (KNN) and Support Vector Machine (SVM)—are trained using Quality of Service (QoS) parameters such as packet delay, loss rate, and Quality Class Identifier (QCI). Experimental evaluations were conducted on two large-scale datasets containing over 400,000 traffic instances, demonstrating that the …


A Hybrid Geoid Model For The Perlis Region, Malaysia Based On Cadastral Reference Marks And A Geometric Approach, Muhammad Aiman Haiqal Abdul Malek, Muhammad Faiz Pa’Suya, Ramazan Alpay Abbak, Ami Hassan Md Din, Noorfatekah Talib Jan 2026

A Hybrid Geoid Model For The Perlis Region, Malaysia Based On Cadastral Reference Marks And A Geometric Approach, Muhammad Aiman Haiqal Abdul Malek, Muhammad Faiz Pa’Suya, Ramazan Alpay Abbak, Ami Hassan Md Din, Noorfatekah Talib

Mansoura Engineering Journal

This study presents the development of a high-resolution local geoid model for the Perlis region, Malaysia, using a geometric approach that integrates GNSS-levelling benchmarks with Cadastral Reference Mark (CRM) data. A total of 38 GNSS-levelling benchmarks were used as reference points, while 3,725 CRMs were incorporated to significantly enhance spatial coverage for geoid modelling. Orthometric heights at the CRM points were first determined by transferring heights from the reference benchmarks using gravimetric geoid information. Subsequently, geometric geoid heights were computed from the differences between ellipsoidal and orthometric heights. Five interpolation techniques were evaluated to generate the geometric geoid surface, namely …