Results 71 to 80 of about 420,571 (273)

The Conservation of Marcus Aurelius' Monument. Technical studies [PDF]

open access: yes, 2015
The equestrian bronze monument of Marcus Aurelius in Rome has been further investigated, after restoration, mainly to foresee possible damages caused by outdoor exposure.
Bartuli, Cecilia   +2 more
core   +1 more source

All‐Aqueous Pullulan Fibers Enabling Visible‐to‐Near‐Infrared Waveguiding with Mechanical and Thermal Resilience

open access: yesAdvanced Functional Materials, EarlyView.
Pullulan, a biomass‐derived polysaccharide, is transformed into transparent optical fibers using a solvent‐free borax hydrogel‐spinning method. The fibers outperform PMMA with ≈200 MPa tensile strength and 200 °C stability, while uniquely guiding visible‐to‐NIR light and enabling additive‐free humidity sensing.
Yuya Fukata   +4 more
wiley   +1 more source

Effectiveness of Corrosion Inhibitors on Bronze and Cast Iron with Prefilming Treatment

open access: yesInternational Journal of Electrochemical Science, 2013
Metallic cultural heritage are commonly with prefilming treatment of inhibitors and then exhibited or conserved in museums. In this work, we get and compare the effectiveness of different corrosion inhibitors on bare bronze and cast iron, patina bronze ...
Ju-lin Wang, Yu-qing Wu, Jun Liu
doaj   +1 more source

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

Une statue d’Epona en tôle de bronze sur modèle en bois à Saint-Valérien (Yonne)

open access: yesRevue Archéologique de l’Est, 2013
Partial exploration (1,7 hectares) of a large village close to Sens has revealed enclosures and wooden constructions, some containing forges, close to a large galleried courtyard. The stages of development during the 1st and 2nd centuries were discerned,
Cyril Driard, Simone Deyts
doaj  

Energy State Estimation of Mechanocomposites Containing Fusible Components Based on Analysis of Fine Structure Parameters and Thermal Effects

open access: yesМеханика машин, механизмов и материалов, 2020
Energy state of composites obtained by mechanical alloying of the Cu-Sn and Fe-Ga powder mixtures during high-energy processing in the planetary ball mill is evaluated by the methods of X-ray diffraction analysis (XRD) and differential scanning ...
Viktor I. Zhornik, Svetlana A. Kovaliova
doaj   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

open access: yesAdvanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero   +12 more
wiley   +1 more source

The Olympic medals ranks, lexicographic ordering and numerical infinities [PDF]

open access: yes, 2015
Several ways used to rank countries with respect to medals won during Olympic Games are discussed. In particular, it is shown that the unofficial rank used by the Olympic Committee is the only rank that does not allow one to
Sergeyev, Yaroslav
core   +2 more sources

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

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