Results 61 to 70 of about 69,869 (259)

3-Difference cordial labeling of some path related graphs

open access: yesIndonesian Journal of Combinatorics, 2018
Let G be a (p, q) graph. Let f : V (G) → {1, 2, . . . , k} be a map where k is an integer 2 ≤ k ≤ p. For each edge uv, assign the label |f(u) − f(v)|. f is called k-difference cordial labeling of G if |vf (i) − vf (j)| ≤ 1 and |ef (0) − ef (1)| ≤ 1 where
R Ponraj, M Maria Adaickalam, R Kala
doaj   +1 more source

Performance of Prestressed Concrete Hunched Beams with Multi-Quadrilaterals Openings

open access: yesCivil and Environmental Engineering, 2022
A long-span Prestressed Concrete Hunched Beam with Multi-Quadrilateral Opening has been developed as an alternative to steel structural elements. An experimental program was created and evaluated utilizing a single mid-span monotonic static load on ...
Al-Hilali Amjad Majeed   +1 more
doaj   +1 more source

Multidimensional Quadrilateral Lattices are Integrable

open access: yes, 1996
The notion of multidimensional quadrilateral lattice is introduced. It is shown that such a lattice is characterized by a system of integrable discrete nonlinear equations. Different useful formulations of the system are given. The geometric construction
Ablowitz   +35 more
core   +2 more sources

Cathodic Cage Plasma Deposition of Nanostructured Cu–Fe–Se Coatings on Poly(methyl Methacrylate)

open access: yesAdvanced Engineering Materials, EarlyView.
Nanostructured Cu–Fe–Se coatings are deposited on PMMA by a modified cathodic cage plasma process, enabling low‐temperature deposition on polymer substrates. A transition from discontinuous to compact morphology is observed with temperature, with optimal properties at 200°C, where improved CuFeSe2‐type bonding, lowest sheet resistance, and favorable ...
V. S. S. Sobrinho   +8 more
wiley   +1 more source

The development of the impedance measured by distance relay [PDF]

open access: yes, 2015
This paper explains the possibility of implementation of a model of a quadrilateral characteristic type of distance relay with the zones using MATLAB/SIMULINK package. SimPowerSystem was used to present modeling of distance relay.
Wannous, K.
core  

An Experimental High‐Throughput Approach for the Screening of Hard Magnet Materials

open access: yesAdvanced Engineering Materials, EarlyView.
An entire workflow for the high‐throughput characterization and analysis of compositionally graded magnetic films is presented. Characterization protocols, data management tools and data analysis approaches are illustrated with test case Sm(Fe, V)12 based films.
William Rigaut   +16 more
wiley   +1 more source

A novel anatomically pre-contoured side-specific titanium plate versus the reconstruction plate for quadrilateral plate fractures of the acetabulum: a propensity-matched cohort study

open access: yesJournal of Orthopaedic Surgery and Research, 2020
Background Surgical treatment of acetabular fractures involving a quadrilateral plate is a challenge to orthopedic surgeons. We have developed a novel fixation technique using a specially shaped reconstruction plate combined with several buttress screws ...
Haiyang Wu   +5 more
doaj   +1 more source

Flipping Cubical Meshes

open access: yes, 2002
We define and examine flip operations for quadrilateral and hexahedral meshes, similar to the flipping transformations previously used in triangular and tetrahedral mesh generation.Comment: 20 pages, 24 figures.
Bern, Marshall   +2 more
core   +3 more sources

Band Alignment in In‐Oxo Metal Porphyrin SURMOF Heterojunctions

open access: yesAdvanced Functional Materials, EarlyView.
Porphyrin core metalation in indium‑oxo SURMOFs enables systematic tuning of band edge positions without altering the crystal structure. First‑principles calculations reveal type‑I and type‑II heterostructures as well as multi‑junction energy cascades, establishing a modular strategy for exciton funneling and charge separation in optoelectronic ...
Puja Singhvi, Nina Vankova, Thomas Heine
wiley   +1 more source

Case Series on Imaging Features of Trilateral and Quadrilateral Retinoblastoma: What Radiologists Need to Know

open access: yesInternational Journal of Integrated Health Sciences
Objective: To identify the differences between trilateral and quadrilateral retinoblastoma based on radiologic imaging. Case: We found three cases of retinoblastoma at Sanglah General Hospital.
Fiona Fiona   +2 more
doaj   +1 more source

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