Results 191 to 200 of about 4,153 (287)

Application of Ag‐Enriched Nanostructures Through Ga+ Irradiation of Silver Butyrate Films in Surface‐Enhanced Raman Spectroscopy (SERS)

open access: yesSmall Methods, EarlyView.
We report a direct‐writing method for patterning silver‐enriched nanostructures with dual functionality: High electrical conductivity, with a resistivity of 95 µΩ·cm, and strong SERS activity, achieving enhancement factors exceeding 107. This approach enables an easy and cost‐effective alternative for the production of microstructures with applications
Juan Ignacio Ocaña‐Parral   +7 more
wiley   +1 more source

The Pier Luigi Nervi's concrete structure of Palazzetto dello Sport: Modeling and dynamic characterization

open access: yesStructural Concrete, EarlyView.
Abstract This paper presents a numerical and experimental study aimed at the modeling and dynamic characterization of the reinforced concrete structure of the Palazzetto dello Sport in Rome, designed and by Pier Luigi Nervi with Annibale Vitellozzi, and built by Nervi & Bartoli contractors in 1956‐57.
Jacopo Ciambella   +2 more
wiley   +1 more source

Piezoelectric stepped-plate resonators vibrating at lateral modes for direct viscosity determination in liquids. [PDF]

open access: yesMicrosyst Nanoeng
Huang L   +9 more
europepmc   +1 more source

Evaluation of prestress losses in concrete beams using destructive and non‐destructive methods

open access: yesStructural Concrete, EarlyView.
Abstract Over the past few decades, prestressing techniques have become essential in the construction of key structures, infrastructure, and bridges. The serviceability and safety of prestressed concrete (PC) elements are closely tied to the effectiveness of the prestressing process.
A. N. Consiglio, G. Muciaccia, G. Rosati
wiley   +1 more source

A N,N′‐p‐Tolyl Substituted Diazadiene Ligand with a Dithienylethane Backbone in Hexacoordinated Group IV Tetrachlorido Complexes—Steric Repulsions Govern the Axial Chirality Mode

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The chelating imino groups in [MCl4(DADDTEthane)] (M = Ti, Zr, Hf) give rise to a planar five‐membered (‐N=C‐C=N‐)M metallacycle. The two thiophene rings of the ligand backbone reside in a noncoplanar arrangement concerning the metallacycle, giving rise to two chiral C–C axes in the ligand backbone.
Dirk Schlüter   +3 more
wiley   +1 more source

A Macrocyclic Bistriazene: Stabilization of the [Ni(Py)2]2+ Complex Cation with 6,15,23,32−Tetraethoxycarbonyl−bis(tolanetriazenediide) Ion as Ligand

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The arrangement of the complex molecules [Ni((4,4′−EtO(CO)2tolaneN3)2(py)2] and pyridine as crystallization solvate in the solid state based on nonbonded intermolecular interactions such CH⋅⋅⋅py, CH⋅⋅⋅O and CH⋅⋅⋅HC contacts is discussed in this work.
Aline Joana Rolina Wohlmuth Alves dos Santos   +6 more
wiley   +1 more source

Deciphering unusually large modulations in two related organic hydroxy channel structures

open access: yesActa Crystallographica Section B, EarlyView.
Two related organic hydroxy‐channel compounds are shown to have unusually large structural modulations.The incommensurately modulated structures of two related organic hydroxy‐channel compounds [(R)‐1‐(1,3‐dihydroxypropan‐2‐yl)‐3‐(octan‐2‐yl)urea, 1; 1‐(1,3‐dihydroxypropan‐2‐yl)‐3‐octylurea, 2] have been determined and compared to the structure of a ...
Arie van der Lee   +8 more
wiley   +1 more source

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