Results 51 to 60 of about 23,019 (259)

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

FLEXURAL BEHAVIOR OF STEEL AND GFRP-REINFORCED LIGHTWEIGHT CONCRETE HOLLOW ONE-WAY SLABS UNDER HIGH TEMPERATURES

Mağallaẗ Al-kūfaẗ Al-handasiyyaẗ
The purpose of this research is to evaluate the impact of different reinforcements, hollow shapes, and fire on ten lightweight concrete slabs that are reinforced with glass fiber reinforced polymer (GFRP) in order to decrease their weight. All slabs were
Hussein M. Kareem, Assim M. Lateef
doaj   +1 more source

Finite Element Analysis of the Hollow Spherical Shells plus Bolts Joints Used for Grid Structures under Uniaxial Compression

IOP Conference Series: Earth and Environmental Science, 2020
Abstract Spatial grid structures are the preferred choice in long-span civil and industrial buildings. As the intersections of multiple bars, only when they possess the characteristics of high load-carrying capacity, lightweight and convenient alignment, can the development needs of modern architecture be satisfied.
Bin Du, Yajie Yan, Bo Yan
openaire   +1 more source

Mesoporous Silica Nanoparticles in Biomedicine: Advances and Prospects

Advanced Materials, EarlyView.
Mesoporous silica nanoparticles offer unique properties like high surface area, tunable pores, and functionalization. They excel in drug delivery, tissue engineering, and stimuli‐responsive therapies, enabling targeted and controlled treatments. With roles in cancer therapy and diagnostics, their clinical translation requires addressing challenges in ...
Miguel Manzano, María Vallet‐Regí
wiley   +1 more source

Ramie-PLA Composite Hollow Sections for EV Chassis: Development and Static Bending Test

Automotive Experiences
The increasing demand for sustainable and lightweight materials in the transportation sector, particularly in the context of electric vehicles (EVs), has accelerated the exploration of bio-based composites as viable alternatives to conventional ...
Mustasyar Perkasa, Tresna Priyana Soemardi, Djoko Wahyu Karmiadji, Yudan Whulanza, Arief Setyawan, Rizky Pratama Mulyana, Arga Agung Nugroho, Wahyu Sulistiyo, Masripah Masripah, Ridho Dwimansyah, Makmuri Makmuri, Wely Pasadena, Olivier Polit   +12 more
doaj   +1 more source

High Light Utilization and Color Rendering in Vacuum‐Deposited Semitransparent Perovskite Solar Cells

Advanced Materials, EarlyView.
In this work, low bandgap (≈1.55 eV) semitransparent perovskite solar cells (ST‐PSCs) having thin (thickness < ≈100 nm) perovskite layers and transparent conductive oxide‐based rear electrodes are fabricated using vacuum‐deposition methods. Two different ST‐PSCs demonstrated a high light utilization efficiency value of 4.2 (PCE: 9.26% and AVT: 45.3 ...
Abhyuday Paliwal, Manuel Romero, Lennart van den Hengel, Nathan Rodkey, Kassio P. S. Zanoni, Gabriel Lozano, Cristina Roldán‐Carmona, Michele Sessolo, Hernán Míguez, Henk J. Bolink   +9 more
wiley   +1 more source

Multicriterion optimization of space trusses with stiffness variation

Computer Assisted Methods in Engineering and Science, 2023
The paper discusses the discrete optimization problem in structural space truss design. The optimal structure should satisfy limit state capacity and serviceability conditions.
Witold M. Paczkowski, Stefan Jendo
doaj  

Structural behavior of concrete-filled steel tubular (CFST) with spherical cap gap subjected to corrosion and long-term tensile loading [PDF]

E3S Web of Conferences
Concrete-filled steel tubes (CFSTs) are commonly used as structural specimens in construction. Gaps between the steel tube and enclosed concrete core can form during manufacture or repair procedures.
Tang Simin, Yang Yuxing, Liao Feiyu
doaj   +1 more source

Experimental and Finite Element Analysis on the Structural Performance of Lightweight Hollow Slab Prefabricated Staircases

Buildings
Prefabricated staircases are crucial components in modern architectural structures, but traditional concrete staircases are too heavy for efficient prefabrication, transportation, and construction. Therefore, this paper proposes a novel lightweight hollow slab prefabricated staircase (referred to as the KXB staircase).
Liu, Jingmin, Bao, Yiming, Qin, Kang
openaire   +2 more sources