Results 111 to 120 of about 138,912 (199)

Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories

Advanced Engineering Materials, EarlyView.
Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter, Felix Drechsler, Till M. J. Stadtmüller, Cameliu Himcinschi, Christos G. Aneziris, Jens Kortus   +5 more
wiley   +1 more source

Degree of h-polynomials of edge ideals

Journal of Algebraic Combinatorics
Abstract In this paper, we investigate the degree of h-polynomials of edge ideals of finite simple graphs. In particular, we provide combinatorial formulas for the degree of the h-polynomial for various fundamental classes of graphs such as paths, cycles, and bipartite graphs.
Jennifer Biermann, Selvi Kara, Augustine O’Keefe, Joseph Skelton, Gabriel Sosa Castillo   +4 more
openaire   +3 more sources

Ideals generated by 2-minors: binomial edge ideals and polyomino ideals

, 2020
Since the early 1990s, a classical object in commutative algebra has been the study of binomial ideals. A widely-investigated class of binomial ideals is the one containing those generated by a subset of 2-minors of an (m x n)-matrix of indeterminates.
openaire   +2 more sources

Ideal strain gauge location for evaluating stress intensity factor in edge-cracked aluminum plates

Journal of the Mechanical Behavior of Materials
The stress intensity factor (SIF) must be determined accurately to analyze crack propagation and structural integrity in cracked material structures. This research focuses on improving the strain gauge location for single-ended fractured aluminum plates ...
Aabid Abdul, Baig Muneer, Hrairi Meftah
doaj   +1 more source

Multidegrees of binomial edge ideals

Communications in Algebra
Let $G$ be a simple graph with binomial edge ideal $J_G$. We prove how to calculate the multidegree of $J_G$ based on combinatorial properties of $G$. In particular, we study the set $S_{\min}(G)$ defined as the collection of subsets of vertices whose prime ideals have minimum codimension.
Cooper, Jacob, Leventhal, Ethan
openaire   +2 more sources

Jump Sequences of Edge Ideals

, 2010
Given an edge ideal of graph G, we show that if the first nonlinear strand in the resolution of $I_G$ is zero until homological stage $a_1$, then the next nonlinear strand in the resolution is zero until homological stage $2a_1$. Additionally, we define a sequence, called a \emph{jump sequence}, characterizing the highest degrees of the free resolution
openaire   +2 more sources

The Origin of the Constant Phase Element Behavior of Pt(111) Near the Potential of Zero Charge. [PDF]

ACS Electrochem
Levey KJ, Fröhlich NL, Hardt S, de Kam LBT, Koper MTM.   +4 more
europepmc   +1 more source

A Fiducial-Marker-Based Localization Method for Automotive Chassis Bolt Assembly. [PDF]

Sensors (Basel)
Peng X, Xiao Y, Chen Z, Chen K, Huang H.
europepmc   +1 more source

Edge ideals of some edge-weighted graphs

This paper presents exact formulas for the regularity and depth of powers of edge ideals of an edge-weighted star graph. Additionally, we provide exact formulas for the regularity of powers of the edge ideal of an edge-weighted integrally closed path, as well as lower bounds on the depth of powers of such an edge ideal.
Zhu, Guangjun, Duan, Shiya, Cui, Yijun, Li, Jiaxin   +3 more
openaire   +1 more source

An improved Newman fast division algorithm based on multi-factor correlation for dynamic traffic sub-region control. [PDF]

PLoS One
Tian X, Ding J, Liu H, Deng H.
europepmc   +1 more source