Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Engineering (197432)
- Physical Sciences and Mathematics (119292)
- Social and Behavioral Sciences (111484)
- Education (76985)
- Law (76460)
-
- Arts and Humanities (69597)
- Life Sciences (49388)
- Computer Sciences (46117)
- Medicine and Health Sciences (40428)
- Civil and Environmental Engineering (40027)
- Electrical and Computer Engineering (36870)
- Business (34054)
- History (33269)
- Higher Education (30532)
- Mechanical Engineering (30156)
- Communication (28636)
- Computer Engineering (25745)
- Library and Information Science (21710)
- Environmental Sciences (20525)
- United States History (18758)
- Mass Communication (17342)
- Materials Science and Engineering (16750)
- Journalism Studies (15624)
- Public Affairs, Public Policy and Public Administration (15432)
- Chemical Engineering (14212)
- Physics (13969)
- Operations Research, Systems Engineering and Industrial Engineering (13923)
- Chemistry (12774)
- Civil Engineering (11831)
- Earth Sciences (11735)
- Institution
-
- University of New Mexico (46819)
- University of Nebraska - Lincoln (29626)
- Missouri University of Science and Technology (29124)
- University of New Hampshire (26559)
- Purdue University (25412)
-
- California Polytechnic State University, San Luis Obispo (23540)
- University of Mississippi (22114)
- Utah State University (18509)
- San Jose State University (18463)
- University of South Florida (17188)
- University of Central Florida (14643)
- Murray State University (13864)
- University of Kentucky (12086)
- Louisiana State University (11909)
- Clemson University (11907)
- Brigham Young University (11642)
- University of Montana (10514)
- University of Dayton (10421)
- Singapore Management University (10048)
- Rochester Institute of Technology (10016)
- Wright State University (9636)
- New Jersey Institute of Technology (9587)
- Georgia Southern University (9181)
- Technological University Dublin (9131)
- Old Dominion University (9052)
- Air Force Institute of Technology (8785)
- TÜBİTAK (8705)
- Portland State University (8647)
- University of North Dakota (8587)
- University of Texas at Arlington (8514)
- Keyword
-
- Newspaper (25558)
- Student newspaper (10273)
- Spartan Daily (8718)
- Newspapers (8397)
- Engineering (5707)
-
- Higher education (5326)
- Education (5225)
- N.M. (5173)
- History (4924)
- Pennsylvania (4857)
- Newsletter (4790)
- Michigan (4751)
- Collegeville (4731)
- Holland (4478)
- College student newspapers and periodicals (4463)
- Local newspapers (4447)
- Humans (4410)
- Bowling Green State University (4351)
- Holland City News (4139)
- New Mexico (3828)
- Machine learning (3810)
- Faculty (3700)
- Student newspapers (3652)
- Las Vegas (3641)
- Undergraduate (3616)
- News (3610)
- Montgomery County (3437)
- Trappe (3427)
- BG News (3379)
- Students (3342)
- Publication Year
-
- 2026 (28455)
- 2025 (39642)
- 2024 (39067)
- 2023 (38564)
- 2022 (38408)
-
- 2021 (41048)
- 2020 (39111)
- 2019 (38473)
- 2018 (37595)
- 2017 (35425)
- 2016 (35881)
- 2015 (32384)
- 2014 (31634)
- 2013 (29509)
- 2012 (28480)
- 2011 (25037)
- 2010 (24173)
- 2009 (20673)
- 2008 (20017)
- 2007 (18432)
- 2006 (17098)
- 2005 (15378)
- 2004 (14460)
- 2003 (12370)
- 2002 (11811)
- 2001 (11000)
- 2000 (10415)
- 1999 (9458)
- 1998 (9372)
- 1997 (8609)
- Publication
-
- Theses and Dissertations (29582)
- Faculty Publications (12140)
- Electronic Theses and Dissertations (11606)
- Theses (11509)
- Spartan Daily (School of Journalism and Mass Communications) (8220)
-
- Daily Mississippian (all digitized issues) (7492)
- Research Collection School Of Computing and Information Systems (7016)
- Masters Theses (6580)
- Dissertations (6435)
- Walden Dissertations and Doctoral Studies (6363)
- Cal Poly Student Newspaper (6038)
- Santa Fe New Mexican, 1883-1913 (5669)
- Articles (5241)
- Master's Theses (5234)
- Graduate Theses, Dissertations, and Problem Reports (ETD) (5006)
- Chulalongkorn University Theses and Dissertations (Chula ETD) (4697)
- Faculty Scholarship (4322)
- Graduate Theses and Dissertations (4303)
- USF Tampa Graduate Theses and Dissertations (4219)
- Doctoral Dissertations (4073)
- Library Philosophy and Practice (e-journal) (4026)
- Journal of System Simulation (3924)
- Defensive Publications Series (3867)
- Montana Kaimin, 1898-present (3805)
- Electrical and Computer Engineering Faculty Research & Creative Works (3488)
- BG News (Student Newspaper) (3410)
- Publications (3404)
- Nebraska Tractor Tests (3402)
- The Murray Ledger & Times (3399)
- The Mayfield Messenger (3381)
- Publication Type
Articles 15331 - 15360 of 1103493
Full-Text Articles in Entire DC Network
Solar Oven For Demonstration, Weston Markham, Anthony Martin, Antony Morris
Solar Oven For Demonstration, Weston Markham, Anthony Martin, Antony Morris
Symposium on Research and Creative Expression (SORCE)
Valparaiso University gives tours to massive numbers of prospective students of all ages on a yearly basis. For those interested in engineering, the solar furnace is a cool destination to showcase the specialized research done at the university; however, tour guides are not generally able to show any experiments actually taking place. In order to better impress younger audiences on the tours while still teaching them about solar power, we will develop a small solar oven to give quick demonstrations to roughly fifth through eighth grade students. This oven will concentrate sunlight in order to heat a small amount of …
Apr. 24, 2026, Former Wbip Members, Comments On Task Force Draft Report.Pdf, Eduardo Abbott, Dilek Barlas, Richard Bissell, Edith Brown Weiss, Gonzalo Castro De La Mata, Zeinab Elbakri, Mark Goldsmith, Imrana Jalal, Werner Kiene, Ramanie Kunanayagam, Peter Lallas, Roberto Lenton, Jan Mattsson, Maarje Van Putten
Apr. 24, 2026, Former Wbip Members, Comments On Task Force Draft Report.Pdf, Eduardo Abbott, Dilek Barlas, Richard Bissell, Edith Brown Weiss, Gonzalo Castro De La Mata, Zeinab Elbakri, Mark Goldsmith, Imrana Jalal, Werner Kiene, Ramanie Kunanayagam, Peter Lallas, Roberto Lenton, Jan Mattsson, Maarje Van Putten
Editors' Corner
No abstract provided.
The Danger Zone: Uas Sightings By Distance From Airports, Jalee Noel Boucher, Omkar Aaditya Sahoo, Brian Winston Anthony Williams, Vivek Sharma, Brooke Wheeler
The Danger Zone: Uas Sightings By Distance From Airports, Jalee Noel Boucher, Omkar Aaditya Sahoo, Brian Winston Anthony Williams, Vivek Sharma, Brooke Wheeler
Aeronautics Student Publications
The increased usage of unmanned aerial systems (UAS) has called for an increase in pilot awareness as they approach or depart airports. Given the increase in UAS usage and the growing academic and industry relevance of UAS, encounters between manned aircraft and UAS are to be expected. The purpose of this study is to examine differences in the number of monthly reported UAS sightings across distance categories from the airport in the contiguous United States between January 2021 and December 2025 (FAA, 2025). An ex post facto design was used and distance categories were established. Data that lacked distance information …
April 24, 2026 Ereporter, University Of Alabama At Birmingham
April 24, 2026 Ereporter, University Of Alabama At Birmingham
eReporter (campus newsletter)
No abstract provided.
The Sky Is Not The Limit: Characterizing The Limiting Magnitudes Of The Ortega Observatory Telescopes, Joshua Benveniste
The Sky Is Not The Limit: Characterizing The Limiting Magnitudes Of The Ortega Observatory Telescopes, Joshua Benveniste
Aerospace, Physics, and Space Science Student Publications
Florida Tech’s Ortega Observatory has many high quality telescopes whose limits require empirical characterization. This project aims to do exactly that by calculating the point-source limiting magnitudes for three telescopes, including the Kennedy Space Center Visitor Complex Telescope
“…You Lost Your Way On That River As You Would In A Desert…”: Spec Ops: The Line As A Post-Imperialist Adaptation And Response To Heart Of Darkness, Logan Grime
Honors Projects
As an adaptation of Joseph Conrad’s Heart of Darkness, the military shooter video game Spec Ops: The Line grapples with adapting the themes and the narrative of an imperialist work into a modern post-imperialist context. By swapping England in Africa for America in the Middle East, the game criticizes America’s conduct of war in the Middle East by showing its similarities to the novella’s imperialism. Furthermore, Spec Ops: The Line focuses on America’s imperialism by adapting Heart of Darkness to an interactive format. “The horror” of violent imperialist action is placed upon the player as Spec Ops: The Line …
Separate But Equal In The Bold New City Of The South: A Shadow Of What Remains, Charity Dera
Separate But Equal In The Bold New City Of The South: A Shadow Of What Remains, Charity Dera
University of Miami Race & Social Justice Law Review
This project undertakes the task of analyzing the historical and contemporary landscape of Jacksonville, Florida, the “Bold New City of the South,”1 from a multidisciplinary vantage point. It argues that the spirit of the overturned “separate but equal” holding of Plessy v. Ferguson2 and its bold segregationist ideologies reverberate today in both subtle and overt ways. Yet, that reality has not come without the resilience and perseverance of pioneering natives who have resisted such ideals in bold ways. While segregation is deeply rooted in U.S. history and scholars have readily addressed the contemporary effects of landmark cases such as Plessy …
Development Of A Preclinical Model That Can Be Used To Test Novel Therapeutics For The Treatment Of Mild And Moderate Traumatic Brain Injury, Hayden Anderson
Development Of A Preclinical Model That Can Be Used To Test Novel Therapeutics For The Treatment Of Mild And Moderate Traumatic Brain Injury, Hayden Anderson
Honors Theses
Traumatic Brain Injury (TBI) occurs when a foreign object induces damage to the skull and brain through a forceful blow or whiplash. It is one of the most frequent injuries in the United States, with approximately 250,000 cases of different levels occurring annually. It is well known that severe TBIs can result in persistent physical, cognitive, and socioeconomic consequences and the timing of treatment following this injury can play a critical role in the ultimate outcome. It would be beneficial to develop a safe therapeutic that could be administered rapidly after impact and improve the recovery of the patient. However, …
Analysis Toolkit For Potential Lunar Landing Zones, Jacobo Matallana
Analysis Toolkit For Potential Lunar Landing Zones, Jacobo Matallana
Morehead State Theses and Dissertations
A thesis presented to the faculty of the College of Science and Engineering Morehead State University in partial fulfillment of the requirements for the Degree Master of Science by Jacobo Matallana on April 24, 2026.
How Additive Manufacturing Is Changing The Automotive Industry, Gavin B. Schumacher
How Additive Manufacturing Is Changing The Automotive Industry, Gavin B. Schumacher
Honors Theses
No abstract provided.
Caregiving For Older Adults: How The Child And Dependent Care Credit Could Help, Gabrielle Pepin, Yulya Truskinovsky
Caregiving For Older Adults: How The Child And Dependent Care Credit Could Help, Gabrielle Pepin, Yulya Truskinovsky
Upjohn Institute Policy and Research Briefs
No abstract provided.
Supply Chain And Analytics Students Help Business Tackle Ai And Operations Challenges, Aaron Sanborn
Supply Chain And Analytics Students Help Business Tackle Ai And Operations Challenges, Aaron Sanborn
UNH Today Archive
No abstract provided.
Florida Tech Botanical Gardens Improvement: Raised Bridged Walkway Design, Peter Abdou, Logan Allen, Severiano Cartagena, Brennan Lackey, Miranda Schwartz
Florida Tech Botanical Gardens Improvement: Raised Bridged Walkway Design, Peter Abdou, Logan Allen, Severiano Cartagena, Brennan Lackey, Miranda Schwartz
Mechanical and Civil Engineering Student Publications
Design a flood-resilient pedestrian system using hydrologic and hydraulic modeling to improve safety, accessibility, and environmental performance within the Botanical Gardens.
Lockheed Martin & U.S. Navy Air Pallet For Materials Handling, Samantha Ryan, Ryan Zerneke, Joshua Bible, Justin Conner, Brycen Haner, Nevan Juteram, Alexander Lacy, Gavin Lanka, Henry Lewis
Lockheed Martin & U.S. Navy Air Pallet For Materials Handling, Samantha Ryan, Ryan Zerneke, Joshua Bible, Justin Conner, Brycen Haner, Nevan Juteram, Alexander Lacy, Gavin Lanka, Henry Lewis
Mechanical and Civil Engineering Student Publications
The purpose of this project is to design, manufacture, and deliver an Air Pallet capable of lifting heavy loads and positively engaging with the Drive Tractor for movement. This project was developed to address current maintenance hazards and difficulty, structural integrity concerns, and increase system reliability for our customers Lockheed Martin and the United States Navy.
3d Filament Recycler, Connor Easley, Stephan Jean-Baptiste, Armando Loynaz, Brody Paulk, Meagan Prouty, Tai Roberts, Jack Salcedo, Vanessa Tohorton, Alex Tremblay, Ruhaan Zaveri
3d Filament Recycler, Connor Easley, Stephan Jean-Baptiste, Armando Loynaz, Brody Paulk, Meagan Prouty, Tai Roberts, Jack Salcedo, Vanessa Tohorton, Alex Tremblay, Ruhaan Zaveri
Mechanical and Civil Engineering Student Publications
The purpose of the project is to design and manufacture an integrated system for the L3HSDC that can recycle 3D filament waste by shredding, heating, extruding, and spooling it.
Psi Epsilon Station, Ember Clark, Zac Hardin, Jasper Stevens, Cole Capawana, Carter Tomasky
Psi Epsilon Station, Ember Clark, Zac Hardin, Jasper Stevens, Cole Capawana, Carter Tomasky
Mechanical and Civil Engineering Student Publications
Thermodynamics is one of the first classes an engineer will take, where you no longer learn practical ideas; instead, the concepts become theoretical. All of thermodynamics culminates in one of the most important cycles, the Rankine Cycle. This can be very overwhelming for students as everything they've learned throughout the semester is now being put into one cycle. The primary goal is to design and build an operational Rankine cycle to demonstrate to students how it works and what each component does.
Variable Arm Reach Extender (Vare), Matthew Gorton, Adam Johnson, Kaleem Bocus, Quin Fredrickson, Vaughn Havins, James Koethe, Leira Maynard, David Mierzejewski, James Moore, Joonhyung Si
Variable Arm Reach Extender (Vare), Matthew Gorton, Adam Johnson, Kaleem Bocus, Quin Fredrickson, Vaughn Havins, James Koethe, Leira Maynard, David Mierzejewski, James Moore, Joonhyung Si
Mechanical and Civil Engineering Student Publications
Approximately 6.7% of the US population suffer from physical disabilities, producing the need for assistive devices. Amongst assistive equipment, reach-extenders have a 64% dissatisfaction rate..
The Matear System, Kylie Strong, Adel Siraeva, Julianna Bartus, Lilly Davies, Cameron Deen, Rayna Doty, Amiana Mata, Jack Minners, Matthew Skwiot
The Matear System, Kylie Strong, Adel Siraeva, Julianna Bartus, Lilly Davies, Cameron Deen, Rayna Doty, Amiana Mata, Jack Minners, Matthew Skwiot
Mechanical and Civil Engineering Student Publications
The MATEAR attachment collects regolith simulant and uses compression and heat to form brick-like building blocks for sustainable infrastructure. It mounts to the Clearpath Robotics Husky A200 rover provided by the team’s faculty advisor.
Lockheed Martin & U.S. Navy Drive Tractor, Nicolas Czincila, Andrew Pestone, Santiago Florez-Tascon, Kalvin Long, Nick Norman, Joseph Phan, Ashlynn Redding, Brandon Ribeiro, Noah Rodriguez, Diana Viherek, Mckenzie Winder
Lockheed Martin & U.S. Navy Drive Tractor, Nicolas Czincila, Andrew Pestone, Santiago Florez-Tascon, Kalvin Long, Nick Norman, Joseph Phan, Ashlynn Redding, Brandon Ribeiro, Noah Rodriguez, Diana Viherek, Mckenzie Winder
Mechanical and Civil Engineering Student Publications
The purpose of this project is to design and manufacture a manually operated, pneumatic-assisted Drive Tractor system for transporting heavy loads with the Air Pallet. This project was developed to improve maneuverability, reduce operator effort, and increase system reliability within industrial environments for our customers Lockheed Martin and the U.S Navy.
Sparcc – Solar Panel Augmentation Via Regulated Cooling And Cleaning, Zachary Rodgers, Connor Fromme, Mohammed Al Jahwari, Jack Connor, Nicolas Hubley, Adrian Kingdollar, Iain Leroy, Maria Jesus Munoz, Ashton Stringer
Sparcc – Solar Panel Augmentation Via Regulated Cooling And Cleaning, Zachary Rodgers, Connor Fromme, Mohammed Al Jahwari, Jack Connor, Nicolas Hubley, Adrian Kingdollar, Iain Leroy, Maria Jesus Munoz, Ashton Stringer
Mechanical and Civil Engineering Student Publications
Problem Statement: Solar energy is the fastest-growing source of energy in the world. Solar cells lose efficiency by 0.35-0.7% per degree Celsius and up to 98% from debris build up. The primary objective of SPARCC was to improve cell efficiency through cooling and cleaning. A brush system with water spray was implemented to clean the panels, and a passive cooling system that utilizes a solar chimney, heat sinks, and phase change material to clean and cool.
College Of Business Relocation Project, Genevieve Spitaletto, Nicky Vreeland, Matthew Loudon, Chris Fox
College Of Business Relocation Project, Genevieve Spitaletto, Nicky Vreeland, Matthew Loudon, Chris Fox
Mechanical and Civil Engineering Student Publications
Construct a modern, six-story College of Business building at Florida Tech that provides functional, accessible, and collaborative learning spaces while meeting all code requirements and supporting long-term campus growth.
Preparation Of Water-Resistant Solid Waste-Based Solidifier And Study On Properties Of Solidified Soil, Yao Yanbo, Zhu Ting, Yang Guowei, Li Menglong
Preparation Of Water-Resistant Solid Waste-Based Solidifier And Study On Properties Of Solidified Soil, Yao Yanbo, Zhu Ting, Yang Guowei, Li Menglong
Journal of China & Foreign Highway
Under the background of the “carbon peaking and carbon neutrality ” goals, the improvement and resource utilization of industrial solid waste and waste soil have become increasingly important. High carbon emissions are generated during the production of traditional cement and lime-modified solidifiers, which exhibit poor crack resistance and tensile properties. In contrast, a composite organic-inorganic membrane can be formed by waterborne epoxy resin combined with C‒S‒H gel in cement soil to cement the internal flaky or spherical soil particles, thereby improving the tensile strength and water erosion resistance of the soil. In this paper, slag and desulfurization gypsum were selected …
Study On Effect Of Reinforcement Ratio On Failure Mode Of Y-Shaped Pier Under Vehicle Eccentric Load, Li Xinfeng, Lin Guangyi, Xia Hao, Li Min, Peng Weibing
Study On Effect Of Reinforcement Ratio On Failure Mode Of Y-Shaped Pier Under Vehicle Eccentric Load, Li Xinfeng, Lin Guangyi, Xia Hao, Li Min, Peng Weibing
Journal of China & Foreign Highway
To construct urban three-dimensional transportation systems and reduce space occupation under bridges, the large cantilever-Y-shaped pier system was applied as a substructure of urban viaducts, with its application demand increasing year by year. However, related research on its reinforcement ratio under vehicle eccentric load has been rarely conducted. Based on an engineering case of an expressway construction project in Jiaxing City, Zhejiang Province, a 1∶5 scaled finite element model was established using Abaqus. The reinforcement ratios of Y-shaped piers in four models were set to 0. 42%, 1. 17%, 1. 69%, and 2. 29%, respectively. Among them, the reinforcement ratio …
Study On Temperature Field And Temperature Effect Of A Continuous Rigid-Frame Bridge With Horizontal Bottom Cables, Li Guodong, Li Guangmao, Gao Yingjie, Huang Fanglin, Zhou De
Study On Temperature Field And Temperature Effect Of A Continuous Rigid-Frame Bridge With Horizontal Bottom Cables, Li Guodong, Li Guangmao, Gao Yingjie, Huang Fanglin, Zhou De
Journal of China & Foreign Highway
To study the temperature field and temperature effects of a continuous rigid-frame bridge with horizontal bottom cables, a large-span prestressed concrete continuous rigid-frame bridge with a horizontally arranged bottom cable system was selected as the research object. A Python program was developed to calculate the solar radiation boundary conditions, and the Abaqus software was used to establish a two-dimensional transient heat conduction model of the bridge. The time-dependent temperature field of the bridge during summer and winter was analyzed. Based on this, the temperature effects caused by the vertical temperature gradient, transverse temperature gradient, effective temperature, and various temperature modes …
Analysis Of Temperature Field In Negative Temperature Tunnel Based On Material Thermal Parameter Tests, Xin Quanming, Zhang Feng, Zhao Zhongliang, Sun Zhenhua
Analysis Of Temperature Field In Negative Temperature Tunnel Based On Material Thermal Parameter Tests, Xin Quanming, Zhang Feng, Zhao Zhongliang, Sun Zhenhua
Journal of China & Foreign Highway
In view of the temperature field problem of Asia ’s first four-season cross-country skiing tunnel reconstructed from an existing tunnel, based on the study of the thermal conductivity of tunnel materials by the HOTDISK method, steady-state heat transfer models under different protection conditions were established by using the finite element method and the multi-layer cylinder heat transfer theory, respectively. The temperature field distribution characteristics of the negative temperature tunnel were analyzed, and the influence laws and sensitivities of various factors were investigated. The results show that the freezing of the tunnel affects the material properties of the tunnel structure;the thermal …
Study On Cause Analysis And Treatment Of Pavement Arching Disease In Highway Tunnels In Water-Rich Soft Rock : A Case Study Of Yunling Tunnel On Shiyan‒Manchuanguan Section Of Fuzhou‒Yinchuan Expressway, Lei Zongjian, Huang Dan, Wu Zheng, Wei Guoyu
Study On Cause Analysis And Treatment Of Pavement Arching Disease In Highway Tunnels In Water-Rich Soft Rock : A Case Study Of Yunling Tunnel On Shiyan‒Manchuanguan Section Of Fuzhou‒Yinchuan Expressway, Lei Zongjian, Huang Dan, Wu Zheng, Wei Guoyu
Journal of China & Foreign Highway
To explore the mechanism of pavement arching disease in phyllite soft rock tunnels and propose targeted disease treatment measures, based on the Yunling Tunnel in the Shiyan‒Manchuanguan section of the Fuzhou ‒ Yinchuan Expressway, typical tunnel diseases were investigated, and triaxial compression tests of phyllite in natural and saturated states were conducted to study the failure laws of the tunnel under the combined action of fault fracture zones and groundwater. The research results indicate that the compressive strength and elastic modulus of the rock in the saturated state are lower than those in the natural state, which demonstrates that the …
Simulation Study On Smoke Propagation Characteristics At Vault In Urban Bifurcated Tunnel Fire, Guo Xiao, Lyu Jianwei, Tan Xiangjun, Ni Chenyang, Wang Youwei, Li Yuyang
Simulation Study On Smoke Propagation Characteristics At Vault In Urban Bifurcated Tunnel Fire, Guo Xiao, Lyu Jianwei, Tan Xiangjun, Ni Chenyang, Wang Youwei, Li Yuyang
Journal of China & Foreign Highway
To explore the influence of wind speed on the smoke temperature and distribution characteristics of the bifurcated diverging tunnel fire, Hangzhou West Station Tunnel on National Highway G 235 was taken as the engineering background in this paper. The numerical simulation method was used to investigate the influences of different upstream wind speeds and fire source positions on the fire smoke propagation in the diverging expansion section. The results indicate that:① A higher wind speed at the tunnel entrance results in a shorter smoke backflow length in the tunnel, and the rate of smoke backflow in the tunnel decreases accordingly;② …
Research On Intelligent Safety Control Of Deep Water Foundation Of Bridges Based On Digital Twins, Guo Feng, Li Ting, Mao Ali
Research On Intelligent Safety Control Of Deep Water Foundation Of Bridges Based On Digital Twins, Guo Feng, Li Ting, Mao Ali
Journal of China & Foreign Highway
To achieve real-time monitoring data collection, intelligent evaluation and warning of safety risks, and rapid disposal of emergency plans for steel cofferdam structures during the construction process of deep water foundations of bridges. Research on intelligent safety control of steel cofferdams of deep water foundations of bridges was conducted based on digital twins. Firstly, BIM software was used to construct a virtual model of the entire construction process of the steel cofferdam, and IoT devices were used to collect real-time data on the stress, displacement, and construction water level of the steel cofferdam structure. Secondly, by using the Web-GL engine …
Analysis Of Microscopic Crack Propagation In Polyurethane-Cement Stabilized Crushed Stone Based On Discrete Element Method, Yu Xin, Huang Yujie, Chen Chen, Jiang Ziqi, Wang Min, Ling Chenxin
Analysis Of Microscopic Crack Propagation In Polyurethane-Cement Stabilized Crushed Stone Based On Discrete Element Method, Yu Xin, Huang Yujie, Chen Chen, Jiang Ziqi, Wang Min, Ling Chenxin
Journal of China & Foreign Highway
To study the effect of polyurethane grouting on the crack repair performance of cement stabilized crushed stone, a microscopic model of cement stabilized crushed stone was established by the discrete element method (DEM) in this paper. SCB fracture simulation tests were conducted on specimens with different initial notch-to-depth ratios to obtain load ‒ displacement curves, and sensitivity analysis of microscopic parameters was performed. Then, by comparing microscopic characteristics such as crack propagation paths, crack types, and particle displacements before and after grouting, the repair effect of polyurethane grouting materials was evaluated. The results indicate that the grouting filler significantly enhances …