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Articles 421 - 450 of 121221
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Experimental Investigation On Nanocellulose And Aluminium-Oxide Hybrid Nanofluid As A New Coolant For Radiator, D. Ramasamy, Sivaraos Sivaraos, K. Kadirgama
Experimental Investigation On Nanocellulose And Aluminium-Oxide Hybrid Nanofluid As A New Coolant For Radiator, D. Ramasamy, Sivaraos Sivaraos, K. Kadirgama
The Nexus of Sustainability and Energy Technology Journal
Improved efficiency leads to more compact design of the radiator. The research is conducted to prove that addition of Aluminium Oxide and nanocellulose originating from plant base with varying concentration provides a better thermal efficiency compared to usage of distilled water as radiator coolant. The objective of the research is to improve a new radiator coolant based on combination of aluminium oxide and nanocellulose with readily available coolants which is Ethylene Glycol and to investigate the erosion of nanocellulose coolant on automotive radiator. The scope of the research are the nanocellulose dispersed in base fluid which is from 60:40, (EG:W). …
Implementation Of 4-Ir In Scm Of Woven Apparel Industry – A Case Study In Bangladesh For Prosperity And Sustainability, Kaniz Farhana, Nazibah Nowreen Onadee, Farhana Mabia Mim, Fuzail Ahmed Khan Rajit, Md. Fahad Faruk Pavel, S.M. Farhana Iqbal, Abu Shadate Faisal Mahamude
Implementation Of 4-Ir In Scm Of Woven Apparel Industry – A Case Study In Bangladesh For Prosperity And Sustainability, Kaniz Farhana, Nazibah Nowreen Onadee, Farhana Mabia Mim, Fuzail Ahmed Khan Rajit, Md. Fahad Faruk Pavel, S.M. Farhana Iqbal, Abu Shadate Faisal Mahamude
The Nexus of Sustainability and Energy Technology Journal
The significance of the Fourth Industrial Revolution (4-IR) for supply chain management (SCM) in the woven clothing industry is emphasized by this survey study. The implementation of cutting-edge technologies that can improve these aspects, like IoT, RFID, blockchain, big data analysis, cybersecurity, and automation, is examined from the viewpoints of woven clothing manufacturers. This investigation seeks to determine Bangladesh's key technological barriers as well as the primary motivator for the weaving RMG's adoption of cutting-edge technologies. Here, a combination of methods, including fieldwork and data collection, has been performed for thorough analysis. The research outlines the current state of affairs …
Evaluation Of Graphene Cathode And Aluminum Ion Ev Battery Performance: A State-Of-The-Art Analysis For Future, Abu Shadate Faisal Mahamude, Kaniz Farhana
Evaluation Of Graphene Cathode And Aluminum Ion Ev Battery Performance: A State-Of-The-Art Analysis For Future, Abu Shadate Faisal Mahamude, Kaniz Farhana
The Nexus of Sustainability and Energy Technology Journal
Lithium-ion batteries may eventually be replaced with rechargeable aluminum-ion batteries (AIBs) due to their high energy density, increased safety, and plentiful supply of raw materials. The development of appropriate cathode materials for AIBs is a major priority these days. As a result of their better quality, graphene-based cathodes have a great chance of success. Graphene is a relatively new and promising material with a unique set of chemical and physical characteristics. Graphene's high electron conductivity and large specific surface area make it seem like one of the best electron-conducting additions, but there are several other ways to increase the cathode …
Atomistic Insights Into The Interfacial Properties And Thermal Transport Of Mxene–Copper Nanocomposites: A Molecular Dynamics Study, Navid Aslfattahi, Maryam Sadat Kiai, K. Kadirgama, L. Samylingam, Chee Kuang Kok, Mohd A.F. Rosli, Thong Leng Lim
Atomistic Insights Into The Interfacial Properties And Thermal Transport Of Mxene–Copper Nanocomposites: A Molecular Dynamics Study, Navid Aslfattahi, Maryam Sadat Kiai, K. Kadirgama, L. Samylingam, Chee Kuang Kok, Mohd A.F. Rosli, Thong Leng Lim
The Nexus of Sustainability and Energy Technology Journal
Understanding the interfacial heat transport mechanisms in Ti3C2Tx–copper nanocomposites is essential for developing advanced Thermal Interface Materials (TIM) for electronic and energy systems. This study provides atomistic insights into how MXene surface terminations (–O, –OH, –F), copper crystallographic orientations ((111), (100), (110)), and MXene layer thickness influence thermal conductivity and interfacial thermal resistance. O-terminated MXene exhibited the strongest interfacial adhesion (∼0.45 J/m2) and the highest thermal conductivity (∼68 W/m· K), while F-terminated MXene showed the weakest interfacial bonding and poorest heat transfer (∼45 W/m· K). Increasing the MXene thickness introduced additional phonon …
Ensuring Safety In Battery Management Systems: A Control Barrier Function Approach, Magdalena Kossek
Ensuring Safety In Battery Management Systems: A Control Barrier Function Approach, Magdalena Kossek
Electronic Theses and Dissertations
Safe and efficient operation of batteries is paramount to extending their lifespan and ensuring reliability in battery management systems. This work presents a new approach for maximizing safety and performance of lithium-ion batteries in a variety of applications with a view towards efficiency in computation. The aim is to maximize a battery’s output (its power, speed of charging, and overall efficiency) while preserving its longevity and ensuring operational safety. This challenge is tackled by developing a novel control algorithm for advanced lithium-ion battery management leveraging control barrier functions (CBFs) to ensure safe and efficient operation during fast charging and discharging. …
Compact 1 Ghz Electron Paramagnetic Resonance Spectrometers For Preclinical Imaging Studies, Tanden A. Hovey
Compact 1 Ghz Electron Paramagnetic Resonance Spectrometers For Preclinical Imaging Studies, Tanden A. Hovey
Electronic Theses and Dissertations
Magnetic resonance is one of the most generally useful scientific techniques. New horizons of understanding are revealed as technological advances make possible explorations of nuclear spins and electron spins at higher and lower magnetic fields and electromagnetic frequencies. While the greatest current effort is on ever higher magnetic fields and microwave frequencies, both in nuclear magnetic resonance (NMR) and electron paramagnetic resonance (EPR), the Eaton lab focusses on developing high signal-to-noise performance EPR at low microwave frequencies. EPR provides information about O2, pH, viscosity, glutathione concentrations, and reactive oxygen species in living organisms that MRI cannot. To yield clinically or …
Field-Like- And Self-Spin-Orbit Torques In Magnetic Multilayer Films, Kyle Jeffrey Peterson
Field-Like- And Self-Spin-Orbit Torques In Magnetic Multilayer Films, Kyle Jeffrey Peterson
Electronic Theses and Dissertations
Spin-orbit torques (SOTs) have been realized as an energy efficient mechanism to manipulate and drive magnetization dynamics in magnetic multilayer films. Their damping-like and field-like components provide distinct pathways for controlling the magnetization, enabling switching, sustaining magneto-oscillations, and driving domain-wall motion with potential applications in nonvolatile memory, spin-based logic, and microwave signal generation. However, the accurate quantification and interpretation of these torques remains complicated by experimental sensitivity, the co-symmetry of the Oersted field and the effective field due to the field-like torque, and assumptions regarding the material layers from which the torques originate. The body of work set forth in …
A Longitudinal Study Of Achilles Tendon Adaptation In Ncaa Division I Female Gymnasts: Associations With Menstrual Status, Birth Control Use, Pain, Limb Dominance, And Training Exposure, Mattie Jane Hyde
Electronic Theses and Dissertations
This longitudinal study evaluated Achilles tendon (AT) thickness in 22 NCAA Division I (DI) female gymnasts across three consecutive seasons in relation to menstruation, birth control use, pain, limb dominance, training week, and year of collegiate competition. Weekly ultrasound and athlete survey data were analyzed using mixed-effects models for absolute AT thickness and change in thickness from baseline measurements. Associations were primarily characterized by interactions rather than uniform effects of individual predictors. A Pain × Limb Dominance × Week × Year interaction was associated with both thickness outcomes across season-specific and combined analyses, with relationship directions varying by limb, season …
Effects Of Ankle Actuation On Stability And Gait Dynamics In Oscillatory Bipedal Walking, Guillermo E. Selva Barrantes
Effects Of Ankle Actuation On Stability And Gait Dynamics In Oscillatory Bipedal Walking, Guillermo E. Selva Barrantes
Electronic Theses and Dissertations
Bipedal locomotion remains one of the most challenging problems in robotics and biomechanical modeling due to its inherent instability, underactuation, and the complexity of human gait dynamics. This study presents the design and control of a planar bipedal walking model developed to analyze the role of ankle control in achieving stable and human-like walking patterns. Two configurations were investigated: a five-link point-foot model and a seven-link model that incorporates anatomically inspired feet with heel and toe contact points. Both models were formulated using Lagrangian dynamics and integrated with a compliant contact and friction model to reproduce realistic ground interaction forces. …
Synergistic Reinforcement Of Lignin–Chitosan Hydrogels Using Vanillin As A Sustainable Green Crosslinker, Moses Ayitey-Adjin Jr., Mohammad Jahid Hasan, Jeremy Erb, Kishore Chand, Garry S. Crosson, Kenya Crosson, Esteban Ureña-Benavides, Erick Salvador Vasquez-Guardado
Synergistic Reinforcement Of Lignin–Chitosan Hydrogels Using Vanillin As A Sustainable Green Crosslinker, Moses Ayitey-Adjin Jr., Mohammad Jahid Hasan, Jeremy Erb, Kishore Chand, Garry S. Crosson, Kenya Crosson, Esteban Ureña-Benavides, Erick Salvador Vasquez-Guardado
Chemical and Materials Engineering Faculty Publications
While bio-based hydrogels derived from lignin and chitosan are promising sustainable adsorbents, their practical application is hindered by poor mechanical stability. This study addresses this limitation by synthesizing lignin-chitosan hydrogels using vanillin as a green, bio-derived crosslinker via a facile solution-casting method. The formation of imine (Schiff base) linkages between the aldehyde groups of vanillin and the primary amines of chitosan was confirmed by FTIR spectroscopy (C = N stretching at ~ 1602 cm− 1). SEM and TGA results demonstrated a reduction in the pore size of the crosslinked hydrogel and an enhanced residual thermal mass. Rheological and …
Techno-Economic Analysis Of Implementing Carbon Capture And Storage (Ccs) At The Punagaya 2×100 Mw Coal Power Plant, Ricky Andreas Kristianto Siringoringo, Rahma Muthia, Widodo Wahyu Purwanto
Techno-Economic Analysis Of Implementing Carbon Capture And Storage (Ccs) At The Punagaya 2×100 Mw Coal Power Plant, Ricky Andreas Kristianto Siringoringo, Rahma Muthia, Widodo Wahyu Purwanto
Journal of Materials Exploration and Findings
The increase in greenhouse gases due to the combustion of fossil fuels is one of the major drivers of global warming and consequently drives the development of low-carbon technologies such as Carbon Capture and Storage (CCS). The aim of this study is to evaluate the technical and economical feasibility of the implementation of CCS technology in the Punagaya Subcritical Coal-Fired Power Plant (CFPP) 2×100 MW as a part of the energy transition strategy towards Net Zero Emissions (NZE) 2060. The simulation was carried out using Aspen HYSYS software, including coal combustion, CO₂ capture through MDEA-PZ solvent, dehydration, transportation, and storage …
Exploring Red Palm Oil As A Sustainable Plasticizer For Carbon Black-Filled Ssbr/Br Tire Tread Compounds: A Comparative Evaluation Of Commercial Alternatives, Norma Arisanti Kinasih, Mohamad Irfan Fathurrohman, Santi Puspitasari, Dewi Kusuma Arti, Abdulhakim Masa
Exploring Red Palm Oil As A Sustainable Plasticizer For Carbon Black-Filled Ssbr/Br Tire Tread Compounds: A Comparative Evaluation Of Commercial Alternatives, Norma Arisanti Kinasih, Mohamad Irfan Fathurrohman, Santi Puspitasari, Dewi Kusuma Arti, Abdulhakim Masa
Journal of Materials Exploration and Findings
This study investigates the application of red palm oil (RPO) as an alternative vegetable oil resource to substitute petroleum-based plasticizers, which have environmental and health concerns, in carbon black (CB)-filled SSBR/BR tire tread compounds. The plasticizing effects of RPO were thoroughly evaluated by comparing them with a commercial bio-based plasticizer, Epoxidized Soybean Oil (ESBO), and two safer petroleum-based oils, Naphthenic Oil (NYNAS) and Treated Distillate Aromatic Extract (TDAE). The initial investigation shows that fatty acid composition is imposing regarding the plasticizing effect. The higher unsaturated fatty acid content in RPO than in ESBO improved tensile strength and degraded rolling resistance …
Analysis Of Tower Stringset Replacement From 33 Kv To 66 Kv Considering Sagging Clearance, Muhammad Lazuardi Azzura, Anne Zulfia Syahrial, Julius Purnama Eka Kartika
Analysis Of Tower Stringset Replacement From 33 Kv To 66 Kv Considering Sagging Clearance, Muhammad Lazuardi Azzura, Anne Zulfia Syahrial, Julius Purnama Eka Kartika
Journal of Materials Exploration and Findings
Efforts to increase the capacity of transmission networks are often undertaken by uprating the operating voltage of existing lines rather than building entirely new infrastructure. Such uprating typically involves the replacement of tower insulator stringsets to withstand higher voltages, while also ensuring that mechanical performance remains adequate. This paper presents an analysis of uprating the Parakan–Sunyaragi transmission line from 33 kV to 66 kV, with particular emphasis on conductor sagging and the resulting clearance from the ground. The methodology employed includes calculations based on catenary equations, analysis of conductor tensile forces, and a comparative evaluation of two widely used insulator …
A Basic Review Of Design And Material Selection For Shovel’S Body, Anggi Buana, Winarto Winarto
A Basic Review Of Design And Material Selection For Shovel’S Body, Anggi Buana, Winarto Winarto
Journal of Materials Exploration and Findings
Manual shovels still play an important role in construction and agricultural work, selecting the right material is crucial to obtain a shovel body that has structural reliability, ergonomic efficiency, and sustainability. In this study, a method for selecting the most suitable material will be discussed by combining functional analysis (Ashby's material performance index, and the Multi-Criteria Decision Making approach). From the figure of load, material index is formulated as a reference for performance property requirements. Using data from analysis software and qualitative data, eight performance criteria such as durability, corrosion resistance, cost, and environmental impact are then weighted using the …
Metallurgical Investigation Of A Modified Eye Bolt Failure Caused By Improper Weld Extension, Specification Deviation, And Crevice Corrosion, Dimas Muhammad Fawwaz, Reza Miftahul Ulum, Johny Wahyuadi Soedarsono, Yudha Pratesa
Metallurgical Investigation Of A Modified Eye Bolt Failure Caused By Improper Weld Extension, Specification Deviation, And Crevice Corrosion, Dimas Muhammad Fawwaz, Reza Miftahul Ulum, Johny Wahyuadi Soedarsono, Yudha Pratesa
Journal of Materials Exploration and Findings
A modified eye bolt from the David Arm Manhole Storage Tank underwent thorough metallurgical study due to the consequences of the bolt's malfunction during operation. Safety issues arose when the manhole door detached during operation. The mechanical testing and chemical composition analysis of the bolts indicated they were manufactured from an ASTM A193 Grade B7 material used for high-temperature bolting. This material did not conform to the engineering drawing, which mentioned SA 563A, which is about nuts, not bolts. This contradiction clearly shows that the eye bolt which was installed does not conform to the intended design. Welded connections of …
Rejection Of Fe (Iron) And Kmno4 (Organic Substance) Parameters In Peat Water Using Organic Membranes, Muhamad Rafli Sakti Mulia Gonera, Siti Umi Kalsum, Sarah Fiebrina Heraningsih
Rejection Of Fe (Iron) And Kmno4 (Organic Substance) Parameters In Peat Water Using Organic Membranes, Muhamad Rafli Sakti Mulia Gonera, Siti Umi Kalsum, Sarah Fiebrina Heraningsih
Journal of Materials Exploration and Findings
Peat water is a surface water source widely used by people in swampy and lowland areas, but it has poor quality characteristics such as high organic matter content, low pH, and dissolved metal levels such as iron that exceed the threshold. These conditions can cause health problems and reduce the quality of clean water so that effective treatment technology is needed. This study aims to analyze the effectiveness of ultrafiltration membranes made from chitosan from shrimp shell waste in rejecting iron (Fe) and organic substances in peat water, and to determine the effect of pressure on separation performance. This study …
Physics-Informed Neural Networks For Early-Warning Fatigue Damage Detection And Localization In A Steel Railway Bridge Using Sparse Ambient Monitoring Data, Arslan Qayyum Khan, Ali Raza, Amorn Pimanmas
Physics-Informed Neural Networks For Early-Warning Fatigue Damage Detection And Localization In A Steel Railway Bridge Using Sparse Ambient Monitoring Data, Arslan Qayyum Khan, Ali Raza, Amorn Pimanmas
Civil Engineering Faculty Publications
Aging steel railway bridges accumulate fatigue damage at locations that periodic inspection rarely reaches and that conventional vibration monitoring detects only after severe stiffness loss. Existing physics-informed learning methods for structural health monitoring are mostly validated on synthetic data and single snapshots, leaving their performance on continuous field data with verified damage untested. This study develops a strain-based monitoring approach, supported by a physics-informed neural network (PINN), for early detection of fatigue damage in a steel railway bridge. The measured strain is compensated for temperature using a model calibrated on healthy-state data, the resulting anomaly is tracked through a statistical …
Percolation-Induced Thermo-Rheological Transitions In Biobased Graphene Nanoplatelet Nanofluids, Abiodun A. Saka, Tobechukwu K. Abor, Anthony C. Okafor, Monday U. Okoronkwo
Percolation-Induced Thermo-Rheological Transitions In Biobased Graphene Nanoplatelet Nanofluids, Abiodun A. Saka, Tobechukwu K. Abor, Anthony C. Okafor, Monday U. Okoronkwo
Mechanical and Aerospace Engineering Faculty Research & Creative Works
Biobased lubricants with thermally responsive rheology are increasingly needed for high-efficiency mechanical systems. Graphene nanoplatelet (GnP) nanofluids in vegetable oils are promising candidates, yet their percolation-driven thermo-rheological transitions remain insufficiently understood. In particular, the coupled concentration–temperature landscape controlling network-mediated flow transitions has not previously been established. Here, surfactant-free GnP nanofluids were prepared in high-oleic soybean oil (HOSO) at concentrations of 0.025–2.15% v/v (ϕ), and their rheological response was mapped between 25°C and 80 °C under steady-shear and oscillatory conditions. Below the percolation threshold (ɸ ≤ 0.1% v/v), the nanofluids exhibit near-Newtonian behavior, moderate reversible viscosity enhancement, and classical Arrhenius-type temperature …
Website: Home, Zhiqu Lu, Likun Zhang, Lei Cao
Website: Home, Zhiqu Lu, Likun Zhang, Lei Cao
Gulf Research Program Data Sets
No abstract provided.
Website: Latest Results, Zhiqu Lu, Likun Zhang, Lei Cao
Website: Latest Results, Zhiqu Lu, Likun Zhang, Lei Cao
Gulf Research Program Data Sets
No abstract provided.
Website: News And Events, Zhiqu Lu, Likun Zhang, Lei Cao
Website: News And Events, Zhiqu Lu, Likun Zhang, Lei Cao
Gulf Research Program Data Sets
No abstract provided.
Flexible Power Point Tracking For Active Frequency Regulation In Grid-Connected Photovoltaic Power Plants, Castor K. Haule, Sophia D. Kigodi, Emmanuel S. Matee, Francis Mwasilu
Flexible Power Point Tracking For Active Frequency Regulation In Grid-Connected Photovoltaic Power Plants, Castor K. Haule, Sophia D. Kigodi, Emmanuel S. Matee, Francis Mwasilu
Tanzania Journal of Science
The increasing penetration of photovoltaic (PV) systems into modern power grids necessitates advanced control strategies capable of supporting grid stability. Traditional PV systems rely on Maximum Power Point Tracking (MPPT) to maximize energy extraction, limiting their ability to participate in grid-support functions such as frequency regulation or power curtailment. This paper presents a flexible power point tracking (FPPT) control strategy that enables PV systems to operate at arbitrary points along the power–voltage (P–V) curve. A multi-mode power management scheme is proposed, integrating conventional Perturb and Observe (P&O) MPPT with FPPT, allowing the system to switch dynamically between energy maximization and …
Navigating The Challenges: Preflight Planning With Notam In Australia’S General Aviation Sector, Joshua Chiang, Guido Carim Junior
Navigating The Challenges: Preflight Planning With Notam In Australia’S General Aviation Sector, Joshua Chiang, Guido Carim Junior
Journal of Aviation/Aerospace Education & Research
Notices to Airmen (NOTAMs) are an integral part of a pilot’s preflight navigational briefing, providing pertinent information in textual format. However, significant shortcomings have been found in the NOTAM system and in its use, with many of the shortcomings revolving around the interface. This study aimed to identify and evaluate the challenges general aviation pilots face when interacting with NOTAMs during preflight navigational planning. A thematic analysis study was conducted and included episodic semi-structured interviews with 15 pilots and document analysis. The interview transcription and excerpts of NOTAMs were analyzed following a thematic analysis technique. The findings of this preliminary …
Impact Of In-Cabin Human Machine Interface Designs On Passenger Trust In Urban Air Mobility, Ricole A. Johnson, Erika E. Gallegos
Impact Of In-Cabin Human Machine Interface Designs On Passenger Trust In Urban Air Mobility, Ricole A. Johnson, Erika E. Gallegos
Journal of Aviation/Aerospace Education & Research
Urban Air Mobility (UAM) presents a promising solution for alleviating urban traffic congestion and enhancing transportation efficiency. However, the widespread acceptance of UAM, particularly sustained ridership of autonomous passenger air vehicles (PAVs), is contingent upon addressing critical human factors for building passenger trust, especially in the absence of a human pilot. This paper evaluates how different in-cabin human-machine interface (HMI) designs affect passenger trust in the aircraft and in-cabin display, situation awareness, and pilot preferences. Forty participants, equally split between early and late technology adopters, completed two simulated flights: a baseline flight with no HMI and a second flight featuring …
Instructional Fidelity In Virtual Flight: Applying A Structured Learning Model For Vr-Based Pilot Training, Lindsay Gouedy, Bryce Jarrell, Mary Fendley, Brandon Wolf
Instructional Fidelity In Virtual Flight: Applying A Structured Learning Model For Vr-Based Pilot Training, Lindsay Gouedy, Bryce Jarrell, Mary Fendley, Brandon Wolf
Journal of Aviation/Aerospace Education & Research
As immersive training technologies reshape the future of aviation education, this study explores the impact of integrating Virtual Reality (VR) into a structured instructional model for B-52 pilot training. With the development and implementation of the I-BUFF (Integrated B-52 Unit Flight Familiarization) model, an innovative framework built upon the 4C/ID (Four Component Instructional Design) and SEEV (Salience, Effort, Expectancy, Value) models, this research evaluates whether structured VR environments improve training transfer and accelerate task proficiency for in-air refueling tasks. A sample of 233 pilot trainees was assessed across three groups: traditional training (non-VR unstructured), VR semi-structured, and VR fully structured …
The Role Of User Experience In Virtual Reality Flight Training: A Comparison With Pc-Based Simulation, Tianxin Zhang, Christina M. Frederick, Barbara Chaparro
The Role Of User Experience In Virtual Reality Flight Training: A Comparison With Pc-Based Simulation, Tianxin Zhang, Christina M. Frederick, Barbara Chaparro
Journal of Aviation/Aerospace Education & Research
The current project explores how user experience (UX) in virtual reality (VR) flight simulation influences both cognitive learning outcomes and procedural skill acquisition when compared to traditional desktop-based simulation.. Using a quasi-transfer of training design, 48 student pilots were randomly assigned to VR, Desktop, or Control groups and trained on the Chandelle maneuver. UX was measured with the User Experience Questionnaire (UEQ), while training effectiveness was evaluated through a post-training knowledge test and recorded maneuver performance on a high-fidelity flight training device. Results indicated that the VR group reported significantly higher UX scores in Attractiveness, Stimulation, and Novelty, and showed …
Utilising Video Recordings To Assess Student Pilot Performance: An Exploratory Study During A Simulated Training Flight, Bradley Moncion, Shi Cao, Allison Lynch, Suzanne K. Kearns, Elizabeth Irving, Ewa Niechwiej-Szwedo
Utilising Video Recordings To Assess Student Pilot Performance: An Exploratory Study During A Simulated Training Flight, Bradley Moncion, Shi Cao, Allison Lynch, Suzanne K. Kearns, Elizabeth Irving, Ewa Niechwiej-Szwedo
Journal of Aviation/Aerospace Education & Research
In ab initio flight training, the quality of the feedback a flight instructor provides their student is essential to their success. While other high-performance and safety-critical industries have incorporated the use of video recordings into training and assessments, the aviation industry generally has not. There are some studies addressing the potential benefits of video recordings in training professional pilots, but there is a lack of research at the ab initio level. In this study, five flight instructors assessed the performance of student pilots conducting a simulated training flight using a 4-point marking scale. The flights instructors were then tasked with …
Evaluation Of Tactile Cueing Embedded In An Aviation Headset On Pilot Altitude Control, Nicholas D. Wilson, Jessica Van Bree, Matthew Cleveland, Sunny Charakuru, Thomas Petros, Richard Ferraro, Kouhyar Tavakolian
Evaluation Of Tactile Cueing Embedded In An Aviation Headset On Pilot Altitude Control, Nicholas D. Wilson, Jessica Van Bree, Matthew Cleveland, Sunny Charakuru, Thomas Petros, Richard Ferraro, Kouhyar Tavakolian
Journal of Aviation/Aerospace Education & Research
This study evaluated the effectiveness of tactile cueing integrated into a pilot’s headset on pilot altitude control during simulated instrument conditions. Pilots typically rely on visual and auditory inputs to maintain situational awareness, but in high-workload or instrument meteorological conditions (IMC), these channels can become overloaded. One underutilized alternative for alerting is a tactile cueing apparatus. Using an X-Plane simulation of a Piper Archer equipped with a G-1000 avionics suite, 39 FAA-certified pilots flew two precision approaches. The experimental group (n = 20) received haptic cues via ear seal-embedded tactors when deviating from assigned altitude or glideslope. The control group …
Improving The Concrete Compressive And Flexural Strength With A Low Fraction Addition Of Carboxylated Nitro-Oxidized Cellulose Nanofibrils From Banana Rachis, Ngesa Ezekiel Mushi, Emmanuel Kagya
Improving The Concrete Compressive And Flexural Strength With A Low Fraction Addition Of Carboxylated Nitro-Oxidized Cellulose Nanofibrils From Banana Rachis, Ngesa Ezekiel Mushi, Emmanuel Kagya
Tanzania Journal of Science
Conventionally, concrete strength depends on the bonding interface, especially in hydrated products such as calcium silicate hydrate (CSH). As a result, concrete is sensitive to tensile load. With its unique properties, a low fraction of carboxylated nitro-oxidized cellulose nanofibrils (NOCNF) from the banana rachis is employed to improve the mechanical performance of the concrete nanostructurally. Compressive and flexural strength using the NOCNF content at 0, 0.05, and 0.1 wt.%, cured for 7 and 28 days, were evaluated. Notably, the compressive strength increased by 16 % and the flexural strength by 13 % at 0.1 wt.% NOCNF compared to plain concrete …
Critical Core Technology Breakthroughs In Large-Scale Models: Industrialization Strategies And Policy Implications, Zhongqi Wu, Yinshan Liu, Tao Dai, Xiaolong Zheng
Critical Core Technology Breakthroughs In Large-Scale Models: Industrialization Strategies And Policy Implications, Zhongqi Wu, Yinshan Liu, Tao Dai, Xiaolong Zheng
Bulletin of Chinese Academy of Sciences (Chinese Version)
As a pivotal direction for breakthroughs in key core technologies within the artificial intelligence domain, large-scale models hold strategic significance in securing national scientific and technological sovereignty. This study employs a multidimensional framework encompassing “technological breakthroughs, industrial transformation, and governance policies” to systematically investigate the developmental trajectories and industrialization bottlenecks of large-scale models. At the technological level, while large-scale models exhibit exponential growth in parameter scale and computing power demands, they face critical challenges including the scarcity of high-quality data, insufficient transfer learning capabilities, and reliability-explainability trade-offs. Industrially, these models are reshaping the global industrial chain landscape through a dual-track …