Results 81 to 90 of about 109,203 (278)
Field Investigation on Quality Assessment of Suspended Cold Joints in Concrete Slabs Using Ultrasonic Pulse Velocity (UPV) Technique: A Case Study [PDF]
JES: Journal of Engineering SciencesThis study reports field investigation examining the use of the Ultrasonic Pulse Velocity (UPV) test as a non-destructive evaluation method for assessing concrete quality in suspended cold joint region.
Mahmoud Abdelemam +3 more
doaj +1 more source
Advanced Materials Technologies, EarlyView.A high‐density wearable body‐surface potential mapping array reveals how gravity reshapes cardiac conduction in real time. By resolving spatiotemporal delay patterns invisible to conventional ECG, the platform uncovers posture‐dependent electrophysiological adaptations across the thorax.
Ruben Ruiz‐Mateos Serrano +4 more
wiley +1 more source
BuildingsThree-dimensional (3D) concrete printing (3DCP) has gained significant attention over the last decade due to its many claimed benefits. The absence of effective real-time quality control mechanisms, however, can lead to inconsistencies in extrusion ...
Luis de la Flor Juncal +3 more
doaj +1 more source
Efecto del contenido de agua sobre la resistencia y la velocidad de pulso ultrasónico del concreto
Tecnura, 2015 The purpose of this study is to determine correlations among content of concrete water, compressive resistance and Ultrasonic Pulse Velocity (UPV). Cylindrical concrete specimens, 200 mm long and 100 mm in diameter made from a mixture of Portland cement ...
Luz Amparo Quintero Ortiz +2 more
doaj +1 more source
Advanced Intelligent Discovery, EarlyView.A machine learning framework simultaneously predicts four critical properties of monomers for emulsion polymerization: propagation rate constant, reactivity ratios, glass transition temperature, and water solubility. These tools can be used to systematically identify viable bio‐based monomer pairs as replacements for conventional formulations, with ...
Kiarash Farajzadehahary +1 more
wiley +1 more source
Đánh giá ảnh hưởng tuổi bê tông đến vận tốc xung siêu âm
Tạp chí Khoa học và Công nghệ, 2023 Bài báo nhằm đánh giá ảnh hưởng của tuổi bê tông đến vận tốc xung siêu âm (UPV) ở các tuổi 3, 7, 14 và 28 ngày. Bê tông trong nghiên cứu đạt cường độ chịu nén ở tuổi 28 ngày trong dải rộng từ 10MPa đến 60MPa, hai phế phẩm tại khu vực miền Trung là tro ...
Vương Lê Thắng +2 more
doaj
Seismic Analysis Capability in NASTRAN [PDF]
, 1984 Seismic analysis is a technique which pertains to loading described in terms of boundary accelerations. Earthquake shocks to buildings is the type of excitation which usually comes to mind when one hears the word seismic, but this technique also applied ...
Butler, T. G., Strang, R. F.
core +1 more source
Frontiers in MedicineBackgroundExperimentally, ultra-protective ventilation (UPV, tidal volumes [VT] < 4 mL.kg−1) strategies in conjunction with veno-venous extracorporeal membrane oxygenation (VV-ECMO) are associated with lesser ventilator-induced lung injuries (VILI ...
Guillaume Deniel +17 more
doaj +1 more source
e-Journal of Nondestructive TestingEnsuring the integrity of concrete structures used for the containment of short-lived low- and intermediate-level radioactive waste is critical for long-term safety.
Sokratis Iliopoulos +2 more
doaj +1 more source
Unfused transverse foramen of the atlas vertebra in the Neandertal lineage fossils
The Anatomical Record, EarlyView.Abstract In anatomically modern humans, the atlas can display an unfused transverse foramen (UTF) but currently the presence of UTF in the Neandertal lineage is uncertain due to a scarcity of prevalence studies and no exhaustive record of its presence throughout the entire hominin fossil record.
Asier Gómez‐Olivencia +5 more
wiley +1 more source