Results 101 to 110 of about 109,203 (278)

Anion‐Regulated Ionic Liquid–Polymer Electrolytes for High‐Performance and Safe Lithium Metal Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A PVDF‐HFP/poly(ionic liquid) dual‐matrix solid electrolyte plasticized with Pyr13TFSI exhibits enhanced ionic conductivity, thermal stability, and interfacial compatibility. The optimized morphology and Li+ solvation structure facilitate fast ion transport and robust cycling, highlighting its promise for safe, high‐performance lithium metal batteries.
Kangsheng Huang, Lanxin Yan, Hai Xu, Langyuan Wu, Zhiwei Li, Jiangmin Jiang, Xinxin Cao, David Mecerreyes, Gang Qin, Xiaogang Zhang   +9 more
wiley   +1 more source

Mechanical Characteristics of Hardened Concrete with Different Types of Cement and Aggregate Available in Bangladesh

Platform, a Journal of Engineering
This paper presents the results of an investigation into the influence of aggregate and binding material type on the mechanical properties of hardened concrete.
Asif Hossain Abir
doaj  

Inline Conversion Monitoring in MMA High Solid Content Polymerization Process

CHIMIA, 2001
Inline conversion measurements in chemical reactions are in general and especially in polymerization reactions necessary for process monitoring and control. For polymerization monitoring, the sound propagation (UPV) can be related to the texture
Thomas Zeilmann, Frédéric Lavanchy, Thierry Meyer   +2 more
doaj  

Ensemble learning based compressive strength prediction of concrete structures through real-time non-destructive testing

Scientific Reports
This study conducts an extensive comparative analysis of computational intelligence approaches aimed at predicting the compressive strength (CS) of concrete, utilizing two non-destructive testing (NDT) methods: the rebound hammer (RH) and the ultrasonic ...
Harish Chandra Arora, Bharat Bhushan, Aman Kumar, Prashant Kumar, Marijana Hadzima-Nyarko, Dorin Radu, Christiana Emilia Cazacu, Nishant Raj Kapoor   +7 more
doaj   +1 more source

Pengaruh Variasi Agregat Kasar Penyusun Beton Terhadap Kerapatan Beton Dengan Menggunakan Pulse Velocity Pada Alat UPV (Ultrasonic Pulse Velocity)

Rekayasa Sipil, 2019
Concrete has already get through many developments, one of them is technological ones with mixture combination of various materials. Due to various materials, it is necessary to test the concrete. One of the test is a non-destructive test or test without
Enggie Herma Putri, Indradi Wijatmiko, Sugeng Prayitno Budio   +2 more
doaj   +1 more source

Determination of Compton profiles at solid surfaces from first-principles calculations

, 2006
Projected momentum distributions of electrons, i.e. Compton profiles above the topmost atomic layer have recently become experimentally accessible by kinetic electron emission in grazing-incidence scattering of atoms at atomically flat single crystal ...
A. Kheifets, Andres Arnau, Christoph Lemell, Joachim Burgdörfer, K. Husimi, P. Hohenberg, W. Kohn   +6 more
core   +2 more sources

Selective Optical Properties of Cement for Enhanced Radiative Cooling and Energy‐Efficient Construction Materials

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec, Guido Goracci, Jorge S. Dolado, Andrés Ayuela   +3 more
wiley   +1 more source

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

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

European Journal of Organic Chemistry, EarlyView.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

Strategy and Structure: Explaning the Diversification Discount [PDF]

In this paper we provide an explanation based on the conflict of interes between top management, middle management and shareholders of why firms adopt different diversification strategies and how they structure themselves to manage those diversification ...
Felipe Balmaceda
core