**Commenced**in January 2007

**Frequency:**Monthly

**Edition:**International

**Paper Count:**24240

# Search results for: vertex frequency analysis

##### 24240 The Vertex Degree Distance of One Vertex Union of the Cycle and the Star

**Authors:**
Ying Wang,
Haiyan Xie,
Aoming Zhang

**Abstract:**

**Keywords:**
degree distance,
vertex-degree-distance,
one vertex union of a cycle and a star,
graph

##### 24239 Bounds on the Laplacian Vertex PI Energy

**Authors:**
Ezgi Kaya,
A. Dilek Maden

**Abstract:**

**Keywords:**
energy,
Laplacian energy,
laplacian vertex PI eigenvalues,
Laplacian vertex PI energy,
vertex PI index

##### 24238 Nullity of t-Tupple Graphs

**Authors:**
Khidir R. Sharaf,
Didar A. Ali

**Abstract:**

**Keywords:**
graph theory,
graph spectra,
nullity of graphs,
statistic

##### 24237 The K-Distance Neighborhood Polynomial of a Graph

**Authors:**
Soner Nandappa D.,
Ahmed Mohammed Naji

**Abstract:**

**Keywords:**
vertex degrees,
distance in graphs,
graph operation,
Nk-polynomials

##### 24236 Normalized Laplacian Eigenvalues of Graphs

**Authors:**
Shaowei Sun

**Abstract:**

**Keywords:**
graph,
normalized Laplacian eigenvalues,
normalized Laplacian matrix,
tree

##### 24235 GPU-Accelerated Triangle Mesh Simplification Using Parallel Vertex Removal

**Authors:**
Thomas Odaker,
Dieter Kranzlmueller,
Jens Volkert

**Abstract:**

**Keywords:**
computer graphics,
half edge collapse,
mesh simplification,
precomputed simplification,
topology preserving

##### 24234 Improvement a Lower Bound of Energy for Some Family of Graphs, Related to Determinant of Adjacency Matrix

**Authors:**
Saieed Akbari,
Yousef Bagheri,
Amir Hossein Ghodrati,
Sima Saadat Akhtar

**Abstract:**

**Keywords:**
eigenvalues,
energy,
line graphs,
matching number

##### 24233 Parabolic Impact Law of High Frequency Exchanges on Price Formation in Commodities Market

**Authors:**
L. Maiza,
A. Cantagrel,
M. Forestier,
G. Laucoin,
T. Regali

**Abstract:**

**Keywords:**
financial market,
high frequency trading,
analysis,
impacts,
Adam Smith invisible hand

##### 24232 Passive Control of Elliptic Jet by Using Triangular and Truncated Tabs

**Authors:**
Saif Akram,
E. Rathakrishnan

**Abstract:**

**Keywords:**
elliptic jet,
tabs,
truncated,
triangular

##### 24231 Undirected Endo-Cayley Digraphs of Cyclic Groups of Order Primes

**Authors:**
Chanon Promsakon,
Sayan Panma

**Abstract:**

**Keywords:**
endo-Cayley graph,
undirected digraphs,
cyclic groups,
endomorphism

##### 24230 Identifying Coloring in Graphs with Twins

**Authors:**
Souad Slimani,
Sylvain Gravier,
Simon Schmidt

**Abstract:**

**Keywords:**
identifying coloring,
locally identifying coloring,
twins,
separating

##### 24229 Construction of Graph Signal Modulations via Graph Fourier Transform and Its Applications

**Authors:**
Xianwei Zheng,
Yuan Yan Tang

**Abstract:**

**Keywords:**
graph signals,
windowed graph Fourier transform,
windowed graph Fourier frames,
vertex frequency analysis

##### 24228 Prediction of the Performance of a Bar-Type Piezoelectric Vibration Actuator Depending on the Frequency Using an Equivalent Circuit Analysis

**Authors:**
J. H. Kim,
J. H. Kwon,
J. S. Park,
K. J. Lim

**Abstract:**

**Keywords:**
actuator,
piezoelectric,
performance,
unimorph

##### 24227 Cancellation of Transducer Effects from Frequency Response Functions: Experimental Case Study on the Steel Plate

**Authors:**
P. Zamani,
A. Taleshi Anbouhi,
M. R. Ashory,
S. Mohajerzadeh,
M. M. Khatibi

**Abstract:**

**Keywords:**
accelerometer mass,
frequency response function,
modal analysis,
sensitivity analysis

##### 24226 Ghost Frequency Noise Reduction through Displacement Deviation Analysis

**Authors:**
Paua Ketan,
Bhagate Rajkumar,
Adiga Ganesh,
M. Kiran

**Abstract:**

**Keywords:**
displacement deviation analysis,
gear whine,
ghost frequency,
sound quality

##### 24225 Field Experience with Sweep Frequency Response Analysis for Power Transformer Diagnosis

**Authors:**
Ambuj Kumar,
Sunil Kumar Singh,
Shrikant Singh,
Zakir Husain,
R. K. Jarial

**Abstract:**

**Keywords:**
transformer winding,
SFRA,
OCT & SCT,
frequency deviation

##### 24224 Parasitic Capacitance Modeling in Pulse Transformer Using FEA

**Authors:**
D. Habibinia,
M. R. Feyzi

**Abstract:**

**Keywords:**
finite element analysis,
parasitic capacitance,
pulse transformer,
high frequency

##### 24223 Signal On-Off Ratio and Output Frequency Analysis of Semiconductor Electron-Interference Device

**Authors:**
Tomotaka Aoki,
Isao Tomita

**Abstract:**

**Keywords:**
electrical conduction,
electron interference,
frequency spectrum,
on-off ratio

##### 24222 Battery Energy Storage System Economic Benefits Assessment on a Network Frequency Control

**Authors:**
Kréhi Serge Agbli,
Samuel Portebos,
Michaël Salomon

**Abstract:**

**Keywords:**
battery energy storage system,
electrical network frequency stability,
frequency control unit,
PowerFactor

##### 24221 Exploring Counting Methods for the Vertices of Certain Polyhedra with Uncertainties

**Authors:**
Sammani Danwawu Abdullahi

**Abstract:**

**Keywords:**
counting with uncertainties,
mathematical programming,
optimization,
vertex enumeration

##### 24220 Analysis of Vortex-Induced Vibration Characteristics for a Three-Dimensional Flexible Tube

**Authors:**
Zhipeng Feng,
Huanhuan Qi,
Pingchuan Shen,
Fenggang Zang,
Yixiong Zhang

**Abstract:**

^{4}. In order to achieve the vortex-induced vibration, the three-dimensional unsteady, viscous, incompressible Navier-Stokes equation and LES turbulence model are solved with the finite volume approach, the tube is discretized according to the finite element theory, and its dynamic equilibrium equations are solved by the Newmark method. The fluid-tube interaction is realized by utilizing the diffusion-based smooth dynamic mesh method. Considering the vortex-induced vibration system, the variety trends of lift coefficient, drag coefficient, displacement, vertex shedding frequency, phase difference angle of tube are analyzed under different frequency ratios. The nonlinear phenomena of locked-in, phase-switch are captured successfully. Meanwhile, the limit cycle and bifurcation of lift coefficient and displacement are analyzed by using trajectory, phase portrait, and Poincaré sections. The results reveal that: when drag coefficient reaches its minimum value, the transverse amplitude reaches its maximum, and the “lock-in” begins simultaneously. In the range of lock-in, amplitude decreases gradually with increasing of frequency ratio. When lift coefficient reaches its minimum value, the phase difference undergoes a suddenly change from the “out-of-phase” to the “in-phase” mode.

**Keywords:**
vortex induced vibration,
limit cycle,
LES,
CFD,
FEM

##### 24219 Total Chromatic Number of Δ-Claw-Free 3-Degenerated Graphs

**Authors:**
Wongsakorn Charoenpanitseri

**Abstract:**

**Keywords:**
total colorings,
the total chromatic number,
3-degenerated,
CLAW-FREE

##### 24218 Steady State Rolling and Dynamic Response of a Tire at Low Frequency

**Authors:**
Md Monir Hossain,
Anne Staples,
Kuya Takami,
Tomonari Furukawa

**Abstract:**

**Keywords:**
natural frequency,
rotational motion,
steady state rolling,
subspace-based steady state dynamic analysis

##### 24217 Monitoring of Spectrum Usage and Signal Identification Using Cognitive Radio

**Authors:**
O. S. Omorogiuwa,
E. J. Omozusi

**Abstract:**

**Keywords:**
spectrum,
interference,
telecommunication,
cognitive radio,
frequency

##### 24216 Deciding Graph Non-Hamiltonicity via a Closure Algorithm

**Authors:**
E. R. Swart,
S. J. Gismondi,
N. R. Swart,
C. E. Bell

**Abstract:**

**Keywords:**
Hamilton cycle decision problem,
computational complexity theory,
graph theory,
theoretical computer science

##### 24215 Time-Frequency Feature Extraction Method Based on Micro-Doppler Signature of Ground Moving Targets

**Authors:**
Ke Ren,
Huiruo Shi,
Linsen Li,
Baoshuai Wang,
Yu Zhou

**Abstract:**

**Keywords:**
micro-doppler,
time-frequency analysis,
feature extraction,
radar target classification

##### 24214 Excitation Experiments of a Cone Loudspeaker and Vibration-Acoustic Analysis Using FEM

**Authors:**
Y. Hu,
X. Zhao,
T. Yamaguchi,
M. Sasajima,
Y. Koike

**Abstract:**

**Keywords:**
anechoic room,
finite element method,
impulse hammer,
loudspeaker,
reverberation room,
sweep signal

##### 24213 Comparison of Frequency-Domain Contention Schemes in Wireless LANs

**Authors:**
Li Feng

**Abstract:**

**Keywords:**
802.11,
wireless LANs,
frequency-domain contention,
T2F

##### 24212 Modal Analysis of Functionally Graded Materials Plates Using Finite Element Method

**Authors:**
S. J. Shahidzadeh Tabatabaei,
A. M. Fattahi

**Abstract:**

**Keywords:**
FGM plates,
modal analysis,
natural frequency,
finite element method

##### 24211 Risk Factors’ Analysis on Shanghai Carbon Trading

**Authors:**
Zhaojun Wang,
Zongdi Sun,
Zhiyuan Liu

**Abstract:**

**Keywords:**
Shanghai carbon trading,
carbon trading price,
carbon trading volume,
wavelet analysis,
BP neural network model