Results 31 to 40 of about 3,257,513 (269)

Structural Behaviour of Voided Flat Slab With Various Void Ratios Under Vertical Loading

Civil and Environmental Engineering, 2023
In recent modern buildings, voided slabs have been implemented because of the high reduction of their weight up to 35 %. Also, CO2 emission takes place which was developed from mass concrete.
Lakshmi Kanth L., Poluraju P.
doaj   +1 more source

Band gap engineering in simultaneous phononic and photonic crystal slabs [PDF]

, 2010
We discuss the simultaneous existence of phononic and photonic band gaps in two types of phononic crystals slabs, namely periodic arrays of nanoholes in a Si membrane and of Si nanodots on a SiO2 membrane. In the former geometry, we investigate in detail
Pennec, Yan, ElHassouani, Y., Akjouj, A., Y. Hassouani, A. Akjouj, Bria, D., Vasseur, J., E. H. Boudouti, ElBoudouti, EH, Y. Pennec, Djafari Rouhani, Bahram, Li, Chanseng, J. O. Vasseur, C. Li, D. Bria, B. Djafari Rouhani   +15 more
core   +1 more source

Stress-strain state of a steel-reinforced concrete slab under long-term

Инженерно-строительный журнал, 2018
This article explores the evaluation of the stress-strain state of steel reinforced concrete slabs under the action of long-term loads. The technique of computer simulation for the performance evaluation of steel reinforced concrete slabs under short ...
Farit Zamaliev, Marat Zakirov
doaj   +1 more source

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

Advanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim, Gayoung Seo, Seong Yeon Park, Juwon Jang, Yunho Ahn, Samiksha Mukesh Jain, Samrat Das Adhikari, Harumi Correa‐Leiva, Ignacio Utreras‐Asenjo, Oscar A. Douglas‐Gallardo, Carina Pareja‐Rivera, Kayoung Cho, Byeongsung Kim, Jhonatan Rodriguez‐Pereira, Eunseo Choi, JaeHong Park, Jin Ho Bang, Danilo H. Jara‐Quinteros, Sixto Giménez, Seog Joon Yoon, Andrés F. Gualdrón‐Reyes, Iván Mora‐Seró   +21 more
wiley   +1 more source

Effects of Er:YAG Laser on Mineral Content of Sound Dentin in Primary Teeth

The Scientific World Journal, 2014
The aim of the present study was to evaluate the mineral content of sound dentin in primary teeth prepared using an Er:YAG laser at two different power settings. Thirty-six primary second molars were used in this study.
Cigdem Guler, Meral Arslan Malkoc, Veli Alper Gorgen, Erhan Dilber, Mehmet Bulbul   +4 more
doaj   +1 more source

Long–term behavior of composite steel plate-concrete slabs incorporating waste plastic fibers

Magazine of Civil Engineering, 2022
This research has been conducted to investigate the effect of adding waste plastic fibers (WPF) in concrete on behavior of composites steel plate-concrete slabs. The WPF were produced by cutting plastic bottles used to preserve carbonated beverages. Both
Kuhair Huda, Hama Sheelan, Aziz Khalil
doaj   +1 more source

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

Advanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar, Fumikazu Murakami, Xing He, Konnor Koons, Xinyan Li, Bumseop Kim, Shihan Qin, Varun Harbola, Jochen Mannhart, Yimo Han, Ruijuan Xu, Shengxi Huang, Andrew M. Rappe, Hanyu Zhu   +13 more
wiley   +1 more source

Monolithic Oxidation Enables Ultrathin Vertically Graded Tantalum Oxide for Low‐Voltage, Low‐Variability Memristive Switching

Advanced Functional Materials, EarlyView.
Monolithic UV‐ozone oxidation of Ta forms an ultrathin Ta2O5/TaOx bilayer enabling resistive switching with a vertical defect gradient. A stoichiometric surface layer over an oxygen‐deficient sublayer promotes localized filament nucleation near the top interface, enabling low‐voltage operation, and reduced cycle‐to‐cycle variability.
Seunghoon Yang, Dong Hyun Lee, Conan Weiland, Won‐Il Lee, Kim Kisslinger, Mingzhao Liu, Aswin kumar Anbalagan, Xiao Tong, Soumyajit Mandal, Nikhil Tiwale, Houk Jang, Chang‐Yong Nam   +11 more
wiley   +1 more source

CRACK STRENGTH OF HOLLOW CORE SLABS: EXPERIMENTAL RESEARCH

Вестник СибАДИ, 2019
Introduction. The paper presents the results of research that allow assessing the degree of influence of pre-organized cracks on the character crack formation and on the process of the hollow-core slabs’ deformation under short-term load action.Materials
V. M. Mitasov, N. V. Statsenko, F. K. Sametov, A. M. Kurbonov   +3 more
doaj   +1 more source

Temperature gradient driven short wavelength modes in sheared slab plasmas

Physics of Plasmas, 2003
The temperature gradient (ηi and ηe) driven instability in the short wavelength regime, |kyρi|>1, is studied in a sheared slab. An analytical analysis is performed first to clarify the physics mechanisms for the modes in a shearless slab. The correlation between the growth rate and the real frequency of the modes is discussed in detail.
Zhe Gao, H. Sanuki, K. Itoh, J. Q. Dong
openaire   +1 more source