Results 101 to 110 of about 28,169 (290)

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Influence of Structural Plane Microscopic Parameters on Direct Shear Strength

Advances in Civil Engineering, 2018
Structural plane is a key factor in controlling the stability of rock mass engineering. To study the influence of structural plane microscopic parameters on direct shear strength, this paper established the direct shear mechanical model of the structural
Yanhui Cheng, Weijun Yang, Dongliang He
doaj   +1 more source

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +1 more source

Using High-Density Polyethylene and Novolac Polymers to Improve the Properties of Gypseous Soil

مجلة النهرين للعلوم الهندسية
This study explores the impact of adding high-density polyethylene (HDPE) and Novolac polymers to gypseous soil from Tikrit City, Iraq, to enhance its geotechnical properties.
Maher M. Khazaal, Qassun S. Mohammed Shafiqu   +1 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

(Fig. 7) Angle of internal friction–plasticity index relationship for halloysite-rich tephra and sedimentary clays of the Omok-Sampling-Site [PDF]

, 2019
(Fig. 7) Angle of internal friction–plasticity index relationship for halloysite-rich tephra and sedimentary clays of the Omok-Sampling ...
Kreiter, Stefan, Kluger, Max Oke, Phillipa R Mills (7518674), Mörz, Tobias, Moon, Vicki G, Orense, Rolando P, Mills, Phillipa R, Vicki G Moon (7518668), Tobias Mörz (6964109), Rolando P Orense (7518671), Stefan Kreiter (7518665), Max Oke Kluger (7518662)   +11 more
core   +1 more source

A method for determining displacement-dependent shear strength of slip zone soils using ring shear tests

KSCE Journal of Civil Engineering
In the sliding process of landslide, the structure of slip zone soil is destroyed gradually, and its shear strength decreases continuously, which may lead to landslide instability.
Tao Luo, Zongxing Zou, Jiayue Ding, Zefan Shao   +3 more
doaj   +1 more source

Field‐Programmed Anisotropy in Magneto‐Piezoelectric Composites for Material‐Encoded Mechanoperception

Advanced Materials, EarlyView.
Field‐programmed anisotropy imparts material‐level intelligence to soft composites. Magnetic torque dynamics drive magneto‐piezoelectric nanowires from random dispersion into deterministic axial alignment. The resulting hierarchical percolation networks confine electromechanical coupling to specific axes and intrinsically decouple superposed force ...
Yubin Kim, Yumin Kwon, Dabin Kim, Minsun Oh, Jin Young Jung, Dongyeong Gim, Kootak Hong, Jun Yeon Hwang, Sang‐Woo Kim, Minjeong Ha   +9 more
wiley   +1 more source

A note on the choice of interfacial friction angle [PDF]

, 1996
Estimates of interfacial friction angle (delta) are necessary for the design of retaining structures and deep foundations, Recommendations in the literature regarding delta values are often contradictory and are therefore not easy to apply in ...
Rao, Subba KS, Robinson, RG, Allam, MM
core   +1 more source

The Cohesion and Angle of Internal Friction and the Change of These Values in the Landslide Face

Landslides, 1980
The clay layer in the landslide face is about 3mm thick. Accordingly, the constants of shearing strength are as follows;c'≈0.φ'>0The reason is that the shearing conditions of sliding face are not consolidated-undrained but consolidateddrained. Therefore, the safety factor of landslide face can be expressed as;Fs=tanφ'∑ (W cos θ-uw) /∑W sin θThe pore ...
openaire   +2 more sources