Results 71 to 80 of about 23,772 (258)
Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application
Advanced Materials, EarlyView.This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong +12 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
Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine
Advanced Materials, EarlyView.A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen +5 more
wiley +1 more source
An alternative method for predicting internal friction angle of rock materials
Environmental Earth SciencesAbstractThe shear strength properties of rock materials, cohesion and internal friction angle, are determined by carrying out tri-axial strength test on cylindrical core specimens in laboratory. But determination of these parameters by triaxial tests in accordance with standards and suggested methods, particularly for weak, fractured and weathered ...
Hasan Karakul, Reşat Ulusay
openaire +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
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
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
Evaluating the Seismic Bearing Capacity of Strip Foundation Adjacent to Geogrid-Reinforced Slopes Using Finite Element Limit Analysis Method [PDF]
پژوهشهای زیرساختهای عمرانیBuilding construction on slopes is inevitable, despite many limitations. Due to the seismicity of Iran, calculating the seismic bearing capacity of foundations is more important.
Mohammad Ahmadi +2 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