Results 111 to 120 of about 256,138 (283)

Formation and accumulation of tight sandy conglomerate gas: A case from the Lower Cretaceous Yingcheng Formation of Xujiaweizi fault depression, Songliao Basin

Petroleum Exploration and Development, 2013
Based on oil and gas drilling data, the main control factors and accumulation rules of tight sandy conglomerate gas in the Lower Cretaceous Yingcheng Formation of the Xujiaweizi fault depression in the Songliao Basin are discussed by combining geology ...
Zihui FENG, Changhai YIN, Jiamin LU, Yingkang ZHU   +3 more
doaj   +1 more source

LONG RANGE AND SHORT RANGE FRICTIONAL SLIP-LINES ON PLANE CONTACT SURFACE IN PLASTIC COMPRESSION (THE RULE OF ISOCLINIC GRADIENT)

Acta Physica Sinica, 1958
In the recent years, the theory related to friction-lines has been independently developed both in Europe and here, according the information reached the author in 1956. These investigations are based on the condition of least frictional resistance at a point.In 1954, a variational equation (2a) on classical basis was given on a meeting for the related
openaire   +1 more source

Curvature‐Tuned Friction at Electrified Ionic Liquid Interfaces

Advanced Functional Materials, EarlyView.
Graphene curvature plays a key role in friction electrotunability at single‐asperity contacts lubricated by ionic liquids. A 9 nm radius yields stronger tunability than larger radii, with distinct friction coefficients at low and high loads indicating a shift in the slippage plane.
Wei Song, Md Ashiqur Rahman, Qianlu Zheng, Nathaniel Hawthorne, James D. Batteas, Rui Qiao, Rosa M. Espinosa‐Marzal   +6 more
wiley   +1 more source

Velocity and density profiles of granular flow in channels using lattice gas automaton

, 1997
We have performed two-dimensional lattice-gas-automaton simulations of granular flow between two parallel planes. We find that the velocity profiles have non-parabolic distributions while simultaneously the density profiles are non-uniform.
A. D. Rosato, A. Károlyi, A. Rosato, A. Rosato, C-h. Liu, C. S. Campbell, D. H. Rothman, D. M. Hanes, E. E. Ehrichs, G. Peng, G. Peng, G. Ristow, G. W. Baxter, G. W. Baxter, G. W. Baxter, Gongwen Peng, H. Caram, H. Hayakawa, H. J. Herrmann, H. M. Jaeger, H. M. Jaeger, H. M. Jaeger, I. Goldhirsch, J. A. C. Gallas, J. C. Williams, J. J. Alonso, J. K. Rudra, J. Lee, J. Lee, J. T. Jenkins, K. Balasubramanian, K. L. Schick, L. P. Kadanoff, M. A. Goodman, M. Faraday, M. P. Allen, M. Y. Choi, O. Pouliquen, O. R. Walton, P. A. Thompson, P. Devillard, P. Evesque, P. K. Haff, P. K. Haff, R. A. Bagnold, S. B. Savage, S. Horikawa, S. L. Soo, S. Luding, S. McNamara, S. Vollmar, T. Pöschel, Takao Ohta, U. Frisch, Y. Du, Y. H. Taguchi   +55 more
core   +1 more source

Companion D: Topology and Selection Rules for Junction-Slip (Neutron → Proton)

This companion formalizes the topological selection rules and symmetry-layering assumptions behind the neutron junction-slip transition in NJSR. It documents how winding/sign conventions, admissible junction moves, and topology constraints define which transitions are allowed and how charge/spin bookkeeping is enforced across brane and bulk sectors. It
openaire   +1 more source

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

Light‐Actuated Fiber‐Climbing Inchworm Robot Toward Endoluminal Navigation

Advanced Functional Materials, EarlyView.
A kirigami‐inspired soft inchworm robot harnesses optical energy from a customized side‐emitting optical fiber, guaranteeing its propulsion along the fiber body. The wavelength‐selective responsiveness of dye‐functionalized liquid crystal elastomers and the application of temporal illumination patterns enable sequential control of robot components. The
Antonio Lobosco, Leilei Song, Fan Liu, Yu‐Hsiang Lin, Venkatasubramanian Kalpathy Venkiteswaran, Hao Zeng, Sarthak Misra   +6 more
wiley   +1 more source

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

Advanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery, Lauriane Gérémie, Julie Brun, Lucas Chassatte, Giacomo Gropplero, Réda Bouras, Jieun Choo, Bertrand Cinquin, Alba Marcellan, Danijela Matic Vignjevic, Stéphanie Descroix   +10 more
wiley   +1 more source

Nonlinear modeling of the cyclic response of RC columns [PDF]

, 2012
Cyclic load reversals (like those induced by earthquakes) result in accelerated bond degradation, leading to significant bar slippage. The bond-slip mechanism is reported to be one of the most common causes of damage and even collapse of existing RC ...
Costa, A., Fernandes, C., Melo, J., Rossetto, T., Varum, H.   +4 more
core   +1 more source

Common Signatures of Altered Gene Regulation and Invasiveness of Different Breast Cancer Cell Lines after Matrix Interface Crossing

Advanced Healthcare Materials, EarlyView.
Interface transmigration reprograms triple‐negative breast cancer cells, triggering a shared switch toward more aggressive and invasive phenotypes. Using a collagen I interface model, this study identifies shared transcriptional changes involving proliferation, chromatin remodeling, and DNA repair pathways.
Cornelia Clemens, Hannah Trampert, Nataliia Kotsiuba, Tilo Pompe   +3 more
wiley   +1 more source