[Bi6Mo3(CO)9]4−: a multiple local σ-aromatic cluster containing a distorted Bi6 triangular prism

2021 ◽  
Vol 57 (30) ◽  
pp. 3656-3659
Author(s):  
Lei Qiao ◽  
Dandan Chen ◽  
Jun Zhu ◽  
Alvaro Muñoz-Castro ◽  
Zhong-Ming Sun
Keyword(s):  
Triangular Prism ◽  
Aromatic Cluster

The first Zintl cluster containing a distorted Bi6 triangular prism, [Bi6Mo3(CO)9]4−, has been synthesized and structurally characterized.

The Field Uniformity Analysis in a Triangular Prism Reverberation Chamber with a QRD

2011 ◽  
Vol E94-B (1) ◽  
pp. 334-337 ◽  
Author(s):  
Jung-Hoon KIM ◽  
Hye-Kwang KIM ◽  
Eugene RHEE ◽  
Sung-Il YANG
Keyword(s):  
Triangular Prism ◽  
Reverberation Chamber ◽  
Field Uniformity

scholarly journals On multiplicative degree based topological indices for planar octahedron networks

2020 ◽  
Vol 43 (1) ◽  
pp. 219-228
Author(s):  
Ghulam Dustigeer ◽  
Haidar Ali ◽  
Muhammad Imran Khan ◽  
Yu-Ming Chu
Keyword(s):  
Graph Theory ◽  
Information Science ◽  
Biological Activities ◽  
Molecular Graph ◽  
Triangular Prism ◽  
Structure Property ◽  
Zagreb Index ◽  
Zagreb Indices ◽  
Chemical Graph Theory ◽  
Analytical Formulas

AbstractChemical graph theory is a branch of graph theory in which a chemical compound is presented with a simple graph called a molecular graph. There are atomic bonds in the chemistry of the chemical atomic graph and edges. The graph is connected when there is at least one connection between its vertices. The number that describes the topology of the graph is called the topological index. Cheminformatics is a new subject which is a combination of chemistry, mathematics and information science. It studies quantitative structure-activity (QSAR) and structure-property (QSPR) relationships that are used to predict the biological activities and properties of chemical compounds. We evaluated the second multiplicative Zagreb index, first and second universal Zagreb indices, first and second hyper Zagreb indices, sum and product connectivity indices for the planar octahedron network, triangular prism network, hex planar octahedron network, and give these indices closed analytical formulas.

A unique aromatic cluster near the active site of H. pylori CPA is essential for catalytic function

2021 ◽  
Author(s):  
Ditsa Sarkar ◽  
Ramachandran Vijayan ◽  
Samudrala Gourinath ◽  
Apurba Kumar Sau
Keyword(s):  
Active Site ◽  
Catalytic Function ◽  
H Pylori ◽  
Aromatic Cluster

scholarly journals Finite Element Analysis Study on Lattice Structure Fabricated Using Corn Husk Fibre Reinforced Recycled Polystyrene Composite

2021 ◽  
Vol 335 ◽  
pp. 03011
Author(s):  
Mohammed Shariff Mohamed Sulaiman ◽  
Seong Chun Koay ◽  
Ming Yeng Chan ◽  
Hui Leng Choo ◽  
Ming Meng Pang ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Structural Integrity ◽  
Lattice Structure ◽  
Lattice Parameter ◽  
Triangular Prism ◽  
Hexagonal Prism ◽  
Element Analysis ◽  
Corn Husk ◽  
Fea Simulation

This research investigated the lattice structure fabricated using corn husk fibre reinforced recycled polystyrene composite using Finite Element Analysis (FEA). The material’s properties of this composite material were obtained from previous study. Then, the lattice structure of lattice structure was created using Creo® software and the FEA simulation was done by ANSYS software. In this study, the lattice structures were created using triangular prism and hexagonal prism. The analysis was divided into two conditions: 1) lattice structure with different prism shape and similar surface area, 2) lattice structure with varies of strut thickness and 3) lattice structure with different prism shape and similar lattice parameter. The results show the lattice structure with triangular prism have more structural integrity than hexagonal prism. Then, lattice structure with triangular prism can be built with lesser material but stronger and stiffer than lattice structure with hexagonal prism.

scholarly journals Numerical Modeling of Photonic Jet behind Triangular Prism

2021 ◽  
pp. 1-6
Author(s):  
Arnold Abramov ◽  
Yutao Yue ◽  
Mingming Wang ◽  
Zongyang Wang ◽  
Yajun Xu
Keyword(s):  
Plane Waves ◽  
Isosceles Triangle ◽  
Triangular Prism ◽  
Jet Formation ◽  
Photonic Jet ◽  
Shadow Side ◽  
Difference Time ◽  
Electromagnetic Plane Waves ◽  
High Field Intensity ◽  
Sub Wavelength

The scattering of electromagnetic plane waves by triangular prism and its truncated form (the isosceles triangle and the trapezoid are transverse sections, respectively) has been studied in order to determine possibility of high field intensity (photonic jet) formation. Using high-resolution finite-difference time-domain simulation, an optimal relationship between the wavelength and the size of the prism was found to form photonic jet with sub wavelength waist on the shadow side of the prism. Truncation of the prism (with trapezoids as transverse sections) leads to an improvement in the characteristics of photonic jets (intensity, length and waist). A qualitative explanation of the simulation results obtained is presented.

scholarly journals Ontogenia de la semilla de Yucca periculosa (Agavaceae)

2017 ◽  
pp. 5
Author(s):  
Eduardo García-Villanueva ◽  
E. Mark Engleman
Keyword(s):  
Cell Wall ◽  
Embryo Development ◽  
Seed Coat ◽  
Outer Integument ◽  
Triangular Prism ◽  
Seed Shape ◽  
Food Reserve ◽  
Seed Maturity ◽  
Nuclear Development ◽  
Black Color

Seeds of several Yucca species have been studied by Arnott and Horner. They mainly studied the nature condition and stated that the extra-embryonic food reserve tissue is a perisperm. This paper provides ontogenic evidence that this tissue is an endosperm with nuclear development type. The seed shape is nearly a triangular prism less than 1 cm long, black color and the raphe groove is conspicuous. The seed coat is derived exclusively from the outer integument. The exotesta external periclinal cell wall appears with irregular thickness. Both mesotesta and endotesta grow irregularly inward the seed confering to the endosperm a ruminate appearance. Toward seed maturity, the inner integument tissues disappear, thus fusion between intertegumentary and tegmen-nucellar cuticles occurs; valuable ontogenic information is showed by the cuticles, due to its persistence in spite of its generative tissue disappearance. The embryo development increases until 10 weeks after anthesis, it is cylindric, folds like "S" and two thirds of its chalazal lenght correspond to the cotyledon.

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