Results 111 to 120 of about 31,464 (325)

Analysis of Coiled Tubing Failure Caused By Winding

Shiyou jixie, 2015
The plastic strain of the coiled tubing caused by winding and unwinding could lead to cumulative residual deformation and low cycle fatigue,resulting in coiled tubing deformation fatigue or fatigue damage.Through analysis on the test loads and onsite ...
Li Yinyin, Zhou Zhihong, Zang Chuanzhen, Wu Mingshuai, Ma Weiguo, Gong Xiaoxia   +5 more
doaj  

Consumed by Abdominal Distention

Arthritis Care &Research, EarlyView.
Abimbola Fadairo‐Azinge, James Grenert, Brian Haas, Mary Margaretten   +3 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Characterization of Nitinol Produced by Laser Powder Bed Fusion for Mechanical Metamaterial Applications

Advanced Engineering Materials, EarlyView.
Stabilization of L‐PBF Ni50.7Ti49.3 under low‐cycle loading was investigated. Recoverable strain after cycling was dependent on the amount of applied load. Recovery ratio was 53.4% and 35.1% at intermediate and high load, respectively. The maximum total strain reached 10.3% at a high load of 1200 MPa.
Ondřej Červinek, Jakub Hurník, Miroslav Šmíd, Ondřej Zobač, Melanie Todt, Daniel Koutný   +5 more
wiley   +1 more source

Lifting of D1-D5-P states

, 2018
We consider states of the D1-D5 CFT where only the left-moving sector is excited. As we deform away from the orbifold point, some of these states will remain BPS while others can `lift'.
Hampton, Shaun, Mathur, Samir D., Zadeh, Ida G.   +2 more
core   +1 more source

SFRA, Detect Of Winding Deformation in Power Transformer

IOSR Journal of Electrical and Electronics Engineering, 2014
The sweep frequency response analysis is extensively used technique for detect hidden fault and condition monitoring of power transformer. The operation is carried out by supply a low voltage signal of varying frequencies to the transformer windings and measuring both the input and output signals.
Shivangi Rai, (Prof.) N.P Gupta
openaire   +1 more source

Influence of an Argon/Silane Atmosphere on the Temperature of a Thermal Plasma

Advanced Engineering Materials, EarlyView.
The influence of a silane‐doped argon atmosphere on the chemical composition and temperature of a thermal nontransferring argon plasma is investigated using optical emission spectroscopy. As a result of the high amount of free electrons resulting from the stepwise ionization and dissociation of the silane molecule, even a silane addition of 0.01 vol ...
Lena Kreie, David Kramer, Thomas Scheithauer, Hans Jürgen Maier, Thomas Hassel   +4 more
wiley   +1 more source

A New Method for Diagnosing Transformer Winding Faults Based on mRMR-RF Feature Selection and an Inverse Distance Weighted KNN Model

Algorithms
Accurately extracting deviation features in frequency response curves, which reflect winding deformation states, and selecting appropriate machine learning algorithms are critical for achieving a precise quantitative diagnosis of winding deformation ...
Chenyang Wang, Huan Peng, Zirui Liu, Song Wang, Danyu Li, Fei Xie, Jian Yang   +6 more
doaj   +1 more source

Topological B-Model, Matrix Models, $\hat{c}=1$ Strings and Quiver Gauge Theories

, 2004
We study topological and integrable aspects of $\hat{c}=1$ strings. We consider the circle line theories 0A and 0B at particular radii, and the super affine theories at their self-dual radii.
, A. Iqbal, A. Kapustin, A. Okounkov, B. Feng, C. Itzykson, C.E. Beasley, D. Ghoshal, D.J. Gross, D.J. Gross, D.R. Morrison, E. Witten, E. Witten, E.J. Martinec, Harald Ita, Harald Nieder, Harish-Chandra, I.K. Kostov, I.R. Klebanov, I.R. Klebanov, J. Avan, J. McGreevy, K. Demeterfi, M. Aganagic, M. Aganagic, M. Bershadsky, M. Fukuma, M.R. Douglas, M.R. Douglas, N. Nekrasov, N. Seiberg, O. DeWolfe, P. Bouwknegt, R. Dijkgraaf, R. Dijkgraaf, R. Dijkgraaf, R. Gopakumar, R. Gopakumar, S. Alexandrov, S. Alexandrov, S. Dalley, S. Gukov, S. Mukhi, S.Y. Alexandrov, T. Takayanagi, Tadakatsu Sakai, V.A. Kazakov, X. Yin, Yaron Oz   +48 more
core   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source