Results 71 to 80 of about 23,347 (229)

Toward Safer and Sustainable Lithium Metal Batteries: Fluorine‐Free Solid Polymer Electrolytes

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An analysis to assess the impact of fluorine in polymer electrolyte‐based lithium metal batteries has been conducted. It has been demonstrated that fluorine‐free LiTIM salt delivers a electrochemical performance similar to that of its fluorinated analogue salts, given the complete lithium dissociation in coordination with PEO and the restricted anion ...
David Fraile‐Insagurbe, Leire Meabe, Brigette Althea Fortuin, Itsaso Segura‐Laparra, Elene Sasieta‐Barrutia, Rosalía Cid, Javier Carrasco, Władysław Wieczorek, Maria Forsyth, Michel Armand, María Martínez‐Ibañez   +10 more
wiley   +1 more source

Ultrasonic Pulse Velocity for Real-Time Filament Quality Monitoring in 3D Concrete Printing Construction

Buildings
Three-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, Allan Scott, Don Clucas, Giuseppe Loporcaro   +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, Ricardo Alfredo Cruz Hernández, Deyci Yamile Peña Santos   +2 more
doaj   +1 more source

A High‐Performance Oxidized Graphene for Dendrite‐Free Anodes and Kinetically Enhanced Cathodes of Aqueous Zn‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Oxidized graphene rich in carboxylic acid groups obtained via a simple electrochemical exfoliation route is shown to tackle the main challenges of aqueous Zn‐ion batteries (AZIBs), specifically short Zn anode cycle life and sluggish cathode reaction kinetics.
Enrique Álvarez‐Rubiera, José M. Munuera, Julen Beitia, Cian Gabbett, Alba Suárez‐Fernández, Eider Goikolea, Jonathan N. Coleman, Idoia Ruiz de Larramendi, Silvia Villar‐Rodil, Juan I. Paredes   +9 more
wiley   +1 more source

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 Sciences
This 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, Eslam Soliman, Shehata E Abdel Raheem, Mohamed Nafadi   +3 more
doaj   +1 more source

Vertical crack imaging in a nuclear structure using Ultrasonic Pulse Velocity and Ultrasonic Tomography Techniques

e-Journal of Nondestructive Testing
Ensuring 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, Bart Roggeman, Laura Diaz Caselles   +2 more
doaj   +1 more source

Pulmonary inflammation decreases with ultra-protective ventilation in experimental ARDS under VV-ECMO: a positron emission tomography study

Frontiers in Medicine
BackgroundExperimentally, 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, Guillaume Deniel, François Dhelft, François Dhelft, Sophie Lancelot, Sophie Lancelot, Sophie Lancelot, Maciej Orkisz, Emmanuel Roux, William Mouton, Nazim Benzerdjeb, Nazim Benzerdjeb, Jean-Christophe Richard, Jean-Christophe Richard, Jean-Christophe Richard, Laurent Bitker, Laurent Bitker, Laurent Bitker   +17 more
doaj   +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, Lê Cung, Nguyễn Đình Sơn   +2 more
doaj  

An End Degree for Digraphs

Journal of Graph Theory, EarlyView.
ABSTRACT In this paper we define a degree for ends of infinite digraphs. The well‐definedness of our definition in particular resolves a problem by Zuther. Furthermore, we extend our notion of end degree to also respect, among others, the vertices dominating the end, which we denote as combined end degree.
Matthias Hamann, Karl Heuer
wiley   +1 more source

Beta Human Papillomaviruses Seropositivity and the Association With Cutaneous Squamous Cell Carcinoma—A Systematic Review and Meta‐Analysis

JEADV Clinical Practice, EarlyView.
ABSTRACT Background Cutaneous squamous cell carcinoma (cSCC) is one of the most common nonmelanoma skin cancers, with increasing incidence globally. Beta genus human papillomaviruses (β‐HPVs), particularly in immunocompromised individuals, have been implicated in the development of cSCC. However, the strength of association between β‐HPV seropositivity
Shweh Fern Loo, Ci Zhuang Teh, Wanni Chia, Choon Chiat Oh   +3 more
wiley   +1 more source