Results 21 to 30 of about 7,201 (251)

Inverted pyramid Azores - an eternal hybrid structure

Structural Mechanics of Engineering Constructions and Buildings, 2021
Engineering structures are designed with observation of rules for structural performance under specific design loads, defined in the so-called structural codes. While dead loads are directly dependent from the selection of structural materials to a given
Luís Pedro F R Sarmento Esteves
doaj   +1 more source

Assessment the Performance of the Triangular Integrated Collector

Science Journal of University of Zakho, 2018
A numerical study was achieved on a new design of storage solar collector. The storage collector is a triangular face and a right triangular pyramid for the volumetric shape.
Omer Kh. Ahmed
doaj   +1 more source

New Molecular Geometries With Pentagonal-Pyramidal Structure

ACS Omega
In this work we propose the design of molecular ions that present the same structure as the benzene dication which has a pentagonal-pyramidal geometry. The chosen systems were obtained by replacing atoms or functional groups in C6H62+ to form other species with eight valence electrons. They are: C5H6Si2+, C5H5N2+, C5H5P2+, C5H6B+ and C5H6Al+. Applying
Ricardo R. Oliveira, Wania Wolff, Amir L. Perlin   +2 more
openaire   +3 more sources

Numerical simulation of pyramid solar stills with finned absorbers: Enhancing thermal efficiency for sustainable desalination

Case Studies in Thermal Engineering
Solar desalination provides a sustainable method of producing freshwater in desert areas with limited access to electricity and drinkable water. Improving solar still efficiency is essential to increasing the viability and efficacy of this technology ...
Angham Fadil Abed, Mohammed J. Alshukri, Rassol Hamed Rasheed, Luay S. Al-Ansari, Ahmed Mohsin Alsayah, Mahmoud Khaled   +5 more
doaj   +1 more source

Bis(μ-3-nitrophthalato-κ2O1:O2)bis[aqua(2,2′-bipyridine-κ2N,N′)copper(II)] dihydrate

Acta Crystallographica Section E, 2010
Two 3-nitrophthalate dianions bridge two water-coordinated 2,2′-bipyridine-chelated CuII atoms about a center of inversion to generate the title dinuclear compound, [Cu2(C8H3NO6)2(C10H8N2)2(H2O)2]·2H2O. The geometry of the CuII atom is
Yin-Feng Han, Chen Cheng, Seik Weng Ng
doaj   +1 more source

The geometry of quadrangular convex pyramids

, 2020
5 pages, 1 ...
openaire   +2 more sources

Impact of electric field on the linear, non-linear, and total optical properties of ZnO/Zn1−xMgxO pyramid quantum dot in the presence of an off-center donor atom

Scientific African
In this study, we focus on the effect of the electric field on the optical properties of a ZnO/Zn1−xMgxO pyramid quantum dot in the presence of an off-center donor atom.
A. Bakdid, S. Chouef, M. Hbibi, R. Boussetta, A. El Moussaouy, O. Mommadi, C.A. Duque   +6 more
doaj   +1 more source

{2-[(Benzylphenylphosphanyl-κP)methyl]phenyl-κC1}iodidobis(trimethylphosphane)cobalt(II)

Acta Crystallographica Section E, 2011
In the title compound, [Co(C20H18P)I(C3H9P)2], the CoII atom has a distorted square-pyramidal geometry, the base of which is comprised of two trans PMe3 groups, an I atom, and a C atom of the benzyl group.
Jiong Jia, Chenggen Wang, Nazhen Liu, Xiaoyan Li   +3 more
doaj   +1 more source

Temporal Interference Stimulation of Centromedian‐Parafascicular Complex in Disorders of Consciousness: A Pilot Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu, Changgeng Song, Dianwei Wu, Xiaoqian Niu, Jianmin Hao, Lijuan Liu, Xiaogang Kang, Wen Jiang   +7 more
wiley   +1 more source

(2,2′-Bipyridine-κ2N,N′)hydroxido[N-(4-tolylsulfonyl)alaninato-κ2N,O1]copper(II) hemihydrate

Acta Crystallographica Section E, 2010
In the title complex, [Cu(C10H12NO4S)(OH)(C10H8N2)]·0.5H2O, the Cu(II) ion shows a distorted square-pyramidal coordination geometry with two N atoms from the 2,2′-bipyridine ligand and one N and one O atom from the N-tosyl-&#945 ...
Miao-Ling Huang
doaj   +1 more source