Results 91 to 100 of about 27,970 (292)
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 +13 more
wiley +1 more source
KSCE Journal of Civil EngineeringIn 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 +3 more
doaj +1 more source
Advanced Materials, EarlyView.Elephant‐skin‐inspired crack networks are programmed in porous diatomaceous earth (DE)‐cement composites using substrate‐guided, stress‐concentration induced fracture. The resulting crack lattices act as capillary conduits that redistribute water, while the porous matrix stores moisture.
Qingya Huang +5 more
wiley +1 more source
Using High-Density Polyethylene and Novolac Polymers to Improve the Properties of Gypseous Soil
مجلة النهرين للعلوم الهندسيةThis 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 +1 more
doaj +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
INTERRELATION OF SHEAR ANGLES, EXTERNAL AND INTERNAL FRICTION DURING CHIP FORMATION
, 2020 The aim is to develop a methodology for graph-analytical calculation of the shear angle during the formation of chips for the case when the initial data are reliable empirical dependencies for the components of the cutting force. The research methodology is based on the application of elements of cutting theory to the scheme of chip formation and the ...
Volodymyr, Protsiv +3 more
openaire +1 more source
Dependence of Internal Friction on Folding Mechanism
, 2016 An outstanding challenge in protein folding is understanding the origin of “internal friction” in folding dynamics, experimentally identified from the dependence of folding rates on solvent viscosity.
Wenwei Zheng (652103) +3 more
core +1 more source
Advanced Materials, EarlyView.Mechanically origami‐coded 3D kirigami photovoltaics convert a single extension–release cycle into deterministic self‐folding, reconfiguring planar solar cells into programmable 3D modules. Distinct coding strategies enable either ultrahigh stretchability (500% system strain) or ultrahigh initial effective areal coverage (225%).
Seok Joon Hwang +15 more
wiley +1 more source
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 +5 more
wiley +1 more source
Effective Friction Angle Of Deltaic Soils In The Vistula Marshlands
, 2019 This article presents the results of laboratory tests on soft, normally consolidated soils from the Vistula Marshlands. Samples of high-plasticity organic soils (muds) taken from 3.2–4.0 m and 9.5–10.0 m depth, as well as peat deposit at 14.0 m, are ...
Międlarz Kamila +2 more
core +2 more sources