Results 41 to 50 of about 9,947,482 (276)

Automated Identification, Warning, and Visualization of Vortex-Induced Vibration

Sensors
Vortex-induced vibration (VIV) is a kind of abnormal vibration which needs to be automatically identified and warned in real time to guarantee the operational safety of a bridge.
Min He, Peng Liang, Xing-Shun Lu, Yu-Hao Pan, Di Zhang   +4 more
doaj   +1 more source

Optimization of vibration characteristics and directional propagation of plane waves in branching ligament structures of wind models

Results in Physics, 2023
To achieve multi-frequency vibration suppression and wave propagation modulation, eight branching ligament structures for wind models are proposed. Using lattice theory, dynamical model and finite element release method, the structures are verified to ...
Xiao-feng Li, Shu-liang Cheng, Hong-yun Yang, Qun Yan, Bin Wang, Yong-tao Sun, Qian Ding, Hao Yan, Hong-ge Han, Qing-xin Zhao, Ya-jun Xin   +10 more
doaj   +1 more source

Structure Formation in Large Theories

, 2015
Structuring theories is one of the main approaches to reduce the combinatorial explosion associated with reasoning and exploring large theories. In the past we developed the notion of development graphs as a means to represent and maintain structured ...
Autexier, Serge, Hutter, Dieter
core   +1 more source

Health Status Monitoring of Cuplock Scaffold Joint Connection Based on Wavelet Packet Analysis

Shock and Vibration, 2015
The cuplock scaffolds are widely used as a temporary facility in the bridge and other constructions. The looseness of cuplock scaffold connection plays a significant role in the stability of the structure. Contemporary structural health monitoring method
Liuyu Zhang, Chenyu Wang, Gangbing Song
doaj   +1 more source

Structural optimization of the large structure with stiffeners by hybrid genetic algorithms

Nihon Kikai Gakkai ronbunshu, 2015
An optimization technique using the hybrid GA for large structures in which a lot of stiffeners are attached is proposed in this paper. The object function is the mass of structure and the design variables are the number and the position of stiffeners ...
Ryota NONAMI, Mitsuru KITAMURA, Akihiro TAKEZAWA   +2 more
doaj   +1 more source

Gravitational hydrodynamics of large scale structure formation [PDF]

, 2009
The gravitational hydrodynamics of the primordial plasma with neutrino hot dark matter is considered as a challenge to the bottom-up cold dark matter paradigm.
Aguirre A. N., Alcock C., Binney J., C. H. Gibson, Cover K. S., de Groot S. R., Dunkley J., Elmegreen D. M., Gibson C. H., Gibson C. H., Gibson C. H., Gibson C. H. Schild R. E., Meaburn J., Metz M., Nieuwenhuizen Th. M., Ouchi M., R. E. Schild, Rudnick L., Sylos Labini F. Vasilyev N. L. Baryshev Yu V., Th. M. Nieuwenhuizen, Weinberg S.   +20 more
core   +2 more sources

Structural FECM: Cointegration in large‐scale structural FAVAR models [PDF]

Journal of Applied Econometrics, 2017
SummaryStarting from the dynamic factor model for nonstationary data we derive the factor‐augmented error correction model (FECM) and its moving‐average representation. The latter is used for the identification of structural shocks and their propagation mechanisms. We show how to implement classical identification schemes based on long‐run restrictions
Banerjee, Anindya, Marcellino, Massimiliano, Masten, Igor   +2 more
openaire   +4 more sources

Structure of large random hypergraphs

, 2004
The theme of this paper is the derivation of analytic formulae for certain large combinatorial structures. The formulae are obtained via fluid limits of pure jump type Markov processes, established under simple conditions on the Laplace transforms of ...
Darling, R. W. R., Norris, J. R.
core   +4 more sources

Stressful Events Reported by Childhood Cancer Survivors and Community Controls From the St. Jude Lifetime (SJLIFE) Cohort: A Mixed Method Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Characterizing stressful events reported by childhood cancer survivors experienced throughout the lifespan may help improve trauma‐informed care relevant to the survivor experience. Methods Participants included 2552 survivors (54% female; 34 years of age) and 469 community controls (62% female; 33 years of age) from the St.
Megan E. Ware, Colter K. Clayton, Fang Wang, Sedigheh Mirzaei, Kyla Shelton, Tara M. Brinkman, Victoria Willard, Katianne M. Howard Sharp, Kevin Krull, Lindsay F. Schwartz, Melissa M. Hudson, Gregory T. Armstrong, Kirsten K. Ness, Rachel T. Webster   +13 more
wiley   +1 more source

Nonlinear deformation prediction of tunnel surrounding rock with computational intelligence approaches

Geomatics, Natural Hazards & Risk, 2020
Deformation of surrounding rock is widely monitored to discover surrounding rock behaviors for purpose of event forecasting. This article aims to present a comparative study on surrounding rock nonlinear deformation prediction using computational ...
Peng He, Fei Xu, Shang-qu Sun
doaj   +1 more source