Results 31 to 40 of about 433,210 (289)

Understanding fast macroscale fracture from microcrack post mortem patterns [PDF]

, 2011
Dynamic crack propagation drives catastrophic solid failures. In many amorphous brittle materials, sufficiently fast crack growth involves small-scale, high-frequency microcracking damage localized near the crack tip.
Buehler, C. Guerra, D. Bonamy, D. Dalmas, Goldman, J. Scheibert, Livne, Nalla, Persson, Rosakis, Scheibert, Sharon   +11 more
core   +5 more sources

Measurement method for axisymmetric 3D stress-tensor fields using background-oriented schlieren

Mechanical Engineering Journal, 2019
Stress fields affect various characteristics of materials. However, measurement methods for three-dimensional stress fields tend to be complicated because stress tensors generally consist of six independent components.
Kiminori TOYA, Hiroshi OHNO
doaj   +1 more source

Measuring cellular traction forces on non-planar substrates

, 2016
Animal cells use traction forces to sense the mechanics and geometry of their environment. Measuring these traction forces requires a workflow combining cell experiments, image processing and force reconstruction based on elasticity theory.
Dreissen, Georg, Hampe, Nico, Hersch, Nils, Hoffmann, Bernd, Merkel, Rudolf, Schwarz, Ulrich S., Soine, Jerome R.   +6 more
core   +1 more source

Imaging stress and magnetism at high pressures using a nanoscale quantum sensor [PDF]

, 2018
Pressure alters the physical, chemical and electronic properties of matter. The development of the diamond anvil cell (DAC) enables tabletop experiments to investigate a diverse landscape of high-pressure phenomena ranging from the properties of ...
Bhattacharyya, P., Chatterjee, S., Choi, S., Hohn, T., Hsieh, S., Jeanloz, R., Kamrani, Mehdi, Kobrin, B., Levitas, Valery, Levitas, Valery, Machado, F., Mittiga, T., Moore, J., Rui, N., Smart, T., Struzhkin, V., Yao, N., Zaletel, M., Zu, C.   +18 more
core   +3 more sources

Application and progress of tissue engineering technology in vaginal reconstruction

生物医学转化
Vaginal defects cause immense physical and psychological stress to patients. Traditional vaginal reconstruction methods can partially restore physiological function but are often associated with long treatment periods and complications.
Zhang Xuemei, Xia Lei, Du Yanfang
doaj   +1 more source

Holographic Reconstruction and Renormalization in Asymptotically Ricci-flat Spacetimes

, 2012
In this work we elaborate on an extension of the AdS/CFT framework to a subclass of gravitational theories with vanishing cosmological constant.
A Zenginoglu, AB Zamolodchikov, C Imbimbo, C LeBrun, D Marolf, E Witten, G Compere, G Compere, H Friedrich, H Friedrich, I Bredberg, I Papadimitriou, J Boer de, JD Brown, JD Brown, JD Brown, JD Brown, K Skenderis, K Skenderis, L Andersson, L Andersson, L Andersson, M Henningson, M Henningson, MT Anderson, N Seiberg, P Kraus, P Lancaster, R Penrose, R. N. Caldeira Costa, RB Mann, RM Wald, S Deser, S Gubser, S Haro de, S Haro de, SN Solodukhin, Y Choquet-Bruhat, Y Choquet-Bruhat   +38 more
core   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Approximation of the crack-tip field in fatigue cracks in bridge steel specimens: DIC analysis of different constraint levels

Fracture and Structural Integrity, 2019
A study on the accuracy of the approximation of the displacement field around of crack tip in a sample made from bridge steel (S355) is main objective of contribution.
Stanislav Seitl, Petr Miarka, Vladimir Ruzicka, Lucie Malikova, Alejandro Cruces, Pablo Lopez Crespo   +5 more
doaj   +3 more sources

Simulation Study on the Effect of Flue Gas on Flow Field and Rotor Stress in Gas Turbines

Energies, 2021
A flue gas turbine is the main energy recovery equipment in a heavy oil catalytic cracking unit. Blade erosion and fracture are the main reasons for gas turbine failure.
Guangkui Liu, Sicong Sun, Kui Liang, Xisheng Yang, Dong An, Qi Wen, Xiaohan Ren   +6 more
doaj   +1 more source

Application of Sharafutdinov's Ray Transform in Integrated Photoelasticity

, 2003
We explain the main concepts centered around Sharafutdinov's ray transform, its kernel, and the extent to which it can be inverted. It is shown how the ray transform emerges naturally in any attempt to reconstruct optical and stress tensors within a ...
B. Lionheart, E.G. Coker, H. Aben, H. Aben, H. Hammer, H. Kubo, H.K. Aben, H.K. Aben, M.M. Frocht, P.S. Theocaris, V.A. Sharafutdinov, Y.A. Andrienko, Y.A. Andrienko, Y.A. Andrienko   +13 more
core   +1 more source