Search Results - "Naoum, C"

Torsional behavior of multistory RC frame structures due to asymmetric seismic interaction by Karayannis, Chris G., Naoum, Maria C.

“…•Seismic pounding between multistory structures is likely to introduce a torsional behavior.•The inter – story pounding problem has not been studied…”
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Efficacy and Damage Diagnosis of Reinforced Concrete Columns and Joints Strengthened with FRP Ropes Using Piezoelectric Transducers by Karayannis, Chris G., Golias, Emmanouil, Naoum, Maria C., Chalioris, Constantin E.

“…Recent research has indicated that the implantation of a network of piezoelectric transducer patches in element regions of potential damage development, such…”
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A Deep Learning Approach for Autonomous Compression Damage Identification in Fiber-Reinforced Concrete Using Piezoelectric Lead Zirconate Titanate Transducers by Sapidis, George M, Kansizoglou, Ioannis, Naoum, Maria C, Papadopoulos, Nikos A, Chalioris, Constantin E

“…Effective damage identification is paramount to evaluating safety conditions and preventing catastrophic failures of concrete structures. Although various…”
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Efficacy of PZT Sensors Network Different Configurations in Damage Detection of Fiber-Reinforced Concrete Prisms under Repeated Loading by Naoum, Maria C, Papadopoulos, Nikos A, Sapidis, George M, Voutetaki, Maristella E

“…Real-time structural health monitoring (SHM) and accurate diagnosis of imminent damage are critical to ensure the structural safety of conventional reinforced…”
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Cracking Diagnosis in Fiber-Reinforced Concrete with Synthetic Fibers Using Piezoelectric Transducers by Voutetaki, Maristella E., Naoum, Maria C., Papadopoulos, Nikos A., Chalioris, Constantin E.

“…The addition of short fibers in concrete mass offers a composite material with advanced properties, and fiber-reinforced concrete (FRC) is a promising…”
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Cracking and Fiber Debonding Identification of Concrete Deep Beams Reinforced with C-FRP Ropes against Shear Using a Real-Time Monitoring System by Papadopoulos, Nikos A, Naoum, Maria C, Sapidis, George M, Chalioris, Constantin E

“…Traditional methods for estimating structural deterioration are generally costly and inefficient. Recent studies have demonstrated that implementing a network…”
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Variational functionals for excited state saddle points versus traditional Hylleraas–Undheim and McDonald higher “roots,” and a way to instantly improve a lowest state crude approximant by Bacalis, Naoum C., Xiong, Zhuang, Wang, Zhen Xin, Karaoulanis, Dimitris

“…Many chemical reactions occur in excited states, so, we must know their wave functions. But the excited states are saddle points in the wave function space and…”
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Structural Health Monitoring of Fiber-Reinforced Concrete Prisms with Polyolefin Macro-Fibers Using a Piezoelectric Materials Network under Various Load-Induced Stress by Naoum, Maria C., Papadopoulos, Nikos A., Voutetaki, Maristella E., Chalioris, Constantin E.

“…This experimental study investigates the influence of synthetic macro-fibers added in fiber-reinforced concrete (FRC) prismatic specimens on their flexural…”
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Electronic Processes at the Carbon-Covered (100) Collector Tungsten Surface by Gotsis, Harilaos J., Bacalis, Naoum C., Xanthakis, John P.

“…We have performed density functional VASP calculations of a pure and of a carbon-covered (100) tungsten surface under the presence of an electric field E…”
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Fiber Reinforced Polymer Debonding Failure Identification Using Smart Materials in Strengthened T-Shaped Reinforced Concrete Beams by Zapris, Adamantis G, Naoum, Maria C, Kytinou, Violetta K, Sapidis, George M, Chalioris, Constantin E

“…The favorable contribution of externally bonded fiber-reinforced polymer (EB-FRP) sheets to the shear strengthening of reinforced concrete (RC) beams is widely…”
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An Electromechanical Impedance-Based Application of Realtime Monitoring for the Load-Induced Flexural Stress and Damage in Fiber-Reinforced Concrete by Naoum, Maria C., Sapidis, George M., Papadopoulos, Nikos A., Voutetaki, Maristella E.

“…Effective real-time structural health monitoring in concrete structures is paramount to evaluating safety conditions and the timely maintenance of concrete…”
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Electronic factors determining the methane bond breaking process on small aluminum clusters by Alexandrou, Eleni I., Groß, Axel, Bacalis, Naoum C.

“…In order to understand the catalytic activity of small metal clusters as a function of their size, we have studied the interaction of CH4 with Al4 and Al5…”
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Advanced Structural Monitoring Technologies in Assessing the Performance of Retrofitted Reinforced Concrete Elements by Naoum, Maria C., Papadopoulos, Nikos A., Sapidis, George M., Chalioris, Constantin E.

“…Climate change induces extreme effects with lower-than-designed restoration periods, imposing the necessity of strengthening the structural integrity of…”
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Resilient and Sustainable Structures through EMI-Based SHM Evaluation of an Innovative C-FRP Rope Strengthening Technique by Papadopoulos, Nikos A., Naoum, Maria C., Sapidis, George M., Chalioris, Constantin E.

“…Reinforced Concrete (RC) members in existing RC structures are susceptible to shear-critical due to their under-reinforced design. Thus, implementing a…”
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A Novel Approach to Monitoring the Performance of Carbon-Fiber-Reinforced Polymer Retrofitting in Reinforced Concrete Beam–Column Joints by Sapidis, George M., Naoum, Maria C., Papadopoulos, Nikos A., Golias, Emmanouil, Karayannis, Chris G., Chalioris, Constantin E.

“…Due to insufficient transverse reinforcement, the retrofitting of beam–column joints (BCJs) in existing reinforced concrete (RC) frame structures is commonly…”
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Structural Pounding Effect on the Seismic Performance of a Multistorey Reinforced Concrete Frame Structure by Bantilas, Kosmas E., Naoum, Maria C., Kavvadias, Ioannis E., Karayannis, Chris G., Elenas, Anaxagoras

“…During intense ground motion excitations, the pounding between adjacent buildings may result in extensive structural damage. Despite the provision of…”
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Electro-Mechanical Impedance-Based Structural Health Monitoring of Fiber-Reinforced Concrete Specimens under Four-Point Repeated Loading by Naoum, Maria C., Chalioris, Constantin E., Karayannis, Chris G., Karabinis, Athanasios I., Elenas, Anaxagoras

“…Fiber Reinforced Concrete (FRC) has shown significant promise in enhancing the safety and reliability of civil infrastructures. Structural Health Monitoring…”
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Limit states of RC structures with first floor irregularities by Favvata, MJ, Naoum, M C, Karayannis, C G

“…The seismic performance of reinforced concrete (RC) frame structures with irregularities leading to soft first floor is studied using capacity assessment…”
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Comparison of Radiation Dose Between Bioresorbable Vascular Scaffolds and Drug-Eluting Stents by Kang, S, Naoum, C, Schultz, C, Spiro, J, Alcock, R

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The Effect of Feeding on Echocardiographic Measures of Left Atrial and Left Ventricular Filling in Patients with Large Hiatal Hernia by Gnanenthiran, S, Naoum, C, Hanzek, D, Pogrebizhsky, Z, Martin, D, Falk, G, Kritharides, L, Yiannikas, J

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