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Articles 2971 - 3000 of 16703

Full-Text Articles in Engineering

Mechanical And Durability Properties Of Fly Ash Geopolymer Concrete – A Review, Ali Shebli, Jamal Khatib, Adel Elkordi Jun 2023

Mechanical And Durability Properties Of Fly Ash Geopolymer Concrete – A Review, Ali Shebli, Jamal Khatib, Adel Elkordi

BAU Journal - Science and Technology

Geopolymers have emerged as a promising alternative for Ordinary portland cement (OPC) in construction industry, due to their potential to minimize the emissions of carbon dioxide (CO2) and improve the efficiency of waste recycling. This paper aims to study the fresh and hardened properties of fly ash geopolymer concrete (GPC), as well as to review the raw materials used in the production of geopolymers. Several factors impact the mechanical and durability properties of fly ash GPC, including the specific type of fly ash utilized, the curing temperature, the alkaline activator (AA) concentration, and the type of AA used. …


An Aptamer-Based Microelectrode With Tunable Linear Range For Monitoring Of K+ In The Living Mouse Brain, Yuan-Dong Liu, Jia-Run Li, Li-Min Zhang, Yang Tian Jun 2023

An Aptamer-Based Microelectrode With Tunable Linear Range For Monitoring Of K+ In The Living Mouse Brain, Yuan-Dong Liu, Jia-Run Li, Li-Min Zhang, Yang Tian

Journal of Electrochemistry

Potassium ion (K+) is widely involved in several physiopathological processes, and its abnormal changes are closely related to the occurrence of brain diseases of cerebral ischemia. In vivo acquirement of K+ variation is significant to understand the roles of K+ playing in brain functions. A microelectrode based on single-stranded DNA aptamers was developed for highly selective detection of K+ in brain, in which the aptamer probes were designed to contain an aptamer part for specific recognition of K+, an alkynyl group used for stable confinement of aptamer probe on the gold surface, and …


Intrinsic Point Defects (Vacancies And Antisites) In Cdgep2 Crystals, Timothy D. Gustafson, Nancy C. Giles, Peter G. Schunemann, Kevin T. Zawilski, Kent L. Averett, Jonathan E. Slagle, Larry E. Halliburton Jun 2023

Intrinsic Point Defects (Vacancies And Antisites) In Cdgep2 Crystals, Timothy D. Gustafson, Nancy C. Giles, Peter G. Schunemann, Kevin T. Zawilski, Kent L. Averett, Jonathan E. Slagle, Larry E. Halliburton

Faculty Publications

Cadmium germanium diphosphide (CdGeP2) crystals, with versatile terahertz-generating properties, belong to the chalcopyrite family of nonlinear optical materials. Other widely investigated members of this family are ZnGeP2 and CdSiP2. The room-temperature absorption edge of CdGeP2 is near 1.72 eV (720 nm). Cadmium vacancies, phosphorous vacancies, and germanium-on-cadmium antisites are present in as-grown CdGeP2 crystals. These unintentional intrinsic point defects are best studied below room temperature with electron paramagnetic resonance (EPR) and optical absorption. Prior to exposure to light, the defects are in charge states that have no unpaired spins. Illuminating a CdGeP2 …


Colorful "Stars" In The Dark, Chao Jing, Yi-Tao Long Jun 2023

Colorful "Stars" In The Dark, Chao Jing, Yi-Tao Long

Journal of Electrochemistry

Plasmonic nanoparticles such as Au and Ag with localized surface plasmon resonance (LSPR) property exhibit unique scattering and absorption features. The plasmonic scattering and absorption bands are mainly located at visible light region which can be easily applied in visual detections. By modulating the size, shape, and composition of gold and silver colloid solutions, plenty of colorimetric methods have been constructed for the detection of metal ions, biomolecules, and environmental contaminants, etc. For many years, the LSPR-based measurements are implemented in reagent tubes. Since 2000, the plasmon resonance scattering (PRS) light of metal nanoparticles captured by dark-field microscopy enables the …


Scanning Photoelectrochemical Microscopic Study In Photoinduced Electron Transfer Of Supramolecular Sensitizers-Tio2 Thin Films Systems, Sheng-Ya Zhang, Min Yao, Ze Wang, Tian-Jiao Liu, Rong-Fang Zhan, Hui-Qin Ye, Yan-Jun Feng, Xiao-Quan Lu Jun 2023

Scanning Photoelectrochemical Microscopic Study In Photoinduced Electron Transfer Of Supramolecular Sensitizers-Tio2 Thin Films Systems, Sheng-Ya Zhang, Min Yao, Ze Wang, Tian-Jiao Liu, Rong-Fang Zhan, Hui-Qin Ye, Yan-Jun Feng, Xiao-Quan Lu

Journal of Electrochemistry

Crafting charge transfer channels at titanium dioxide (TiO2) based photoanodes remain a pressing bottleneck in solar-to-chemical conversion technology. Despite the tremendous attempts, TiO2 as the promising photoanode material still suffers from sluggish charge transport kinetics. Herein, we propose an assembly strategy that involves the axial coordination grafting metalloporphyrin-based photosensitizer molecules (MP) onto the surface-modified TiO2 nanorods (NRs) photoanode, forming the composite MP/TiO2 NRs photoelectrode. As expected, the resulted unique MPB/TiO2 NRs photoelectrode displays significantly improved photocurrent density as compared to TiO2 NRs alone and MPA/TiO2 NRs photoelectrode. Scanning …


Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary Jun 2023

Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary

2023 Symposium

Across the United States, there are two pressing problems: garbage disposal and electricity generation. Firstly, the infrastructure in place doesn’t properly dispose of or reuse municipal solid waste. In addition, power insecurity is becoming more prominent as power grids are becoming outdated. This project aims to provide an alternative solution for both issues by using a Brayton cycle based waste-to-energy incinerator. The overall system efficiency relies heavily on the feedstock used for incineration. One way efficiency can be increased is through pelletizing trash, ensuring an even burn profile, providing the correct amount of feedstock, and ensuring adequate energy production. However, …


Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis Jun 2023

Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis

International Material Handling Research Colloquium

No abstract provided.


Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis Jun 2023

Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis

International Material Handling Research Colloquium

No abstract provided.


Optimization Of Cargo Handling Equipment At The Airport, David Šourek Jun 2023

Optimization Of Cargo Handling Equipment At The Airport, David Šourek

International Material Handling Research Colloquium

No abstract provided.


On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl Jun 2023

On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell Jun 2023

Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell

International Material Handling Research Colloquium

No abstract provided.


Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu Jun 2023

Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl Jun 2023

Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri Jun 2023

Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell Jun 2023

Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl Jun 2023

Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis Jun 2023

Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo Jun 2023

Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo

International Material Handling Research Colloquium

No abstract provided.


A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren Jun 2023

A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren

International Material Handling Research Colloquium

No abstract provided.


Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng Jun 2023

Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng

International Material Handling Research Colloquium

No abstract provided.


Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff Jun 2023

Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff

International Material Handling Research Colloquium

No abstract provided.


Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast Jun 2023

Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast

International Material Handling Research Colloquium

No abstract provided.


Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla Jun 2023

Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla

International Material Handling Research Colloquium

No abstract provided.


Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans Jun 2023

Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans

International Material Handling Research Colloquium

No abstract provided.


Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak Jun 2023

Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak

International Material Handling Research Colloquium

No abstract provided.


Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese Jun 2023

Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese

International Material Handling Research Colloquium

No abstract provided.


Keynote: "Witron", Daniel Ries Jun 2023

Keynote: "Witron", Daniel Ries

International Material Handling Research Colloquium

No abstract provided.


Concepts For The Use Of Knowledge-Based Engineering In Intralogistics System Planning, Christian Landschützer, Alexander Ortner-Pichler Jun 2023

Concepts For The Use Of Knowledge-Based Engineering In Intralogistics System Planning, Christian Landschützer, Alexander Ortner-Pichler

International Material Handling Research Colloquium

No abstract provided.


5g Opportunities In Warehousing, Roshan George, Natalie S. Cherbaka, Kimberly Ellis Jun 2023

5g Opportunities In Warehousing, Roshan George, Natalie S. Cherbaka, Kimberly Ellis

International Material Handling Research Colloquium

No abstract provided.


Robotic Bin-Picking: Benchmarking Robotic Grippers With Modified Ycb Object And Model Set, Tone Lerher, Primož Bencak, Darko Hercog, Boris Jerman, Luka Bizjak Jun 2023

Robotic Bin-Picking: Benchmarking Robotic Grippers With Modified Ycb Object And Model Set, Tone Lerher, Primož Bencak, Darko Hercog, Boris Jerman, Luka Bizjak

International Material Handling Research Colloquium

No abstract provided.