Results 111 to 120 of about 32,905 (294)
Defect‐Engineered ZnO Nanowire Arrays for Flexible Room‐Temperature Hydrogen Sensors
Fabrication process of patterned ZnO nucleation sites on a flexible polyimide (PI) substrate. Top/tilted‐view SEM images of ordered ZnO nanoflower arrays confined within patterned circular regions. AFM topography map with height data revealing a disk‐array structure, where the patterned regions (marked by a red dot circle) are elevated by ∼2 µm ...
Jun‐Ting Wang +7 more
wiley +1 more source
Vertically oriented van der Waals MoS2 thin films enable a mechanically programmable crack network for strain sensing. The initial mechanical programming protocol establishes a programmed crack configuration along weak interlayer and interdomain interfaces.
Yinli Wang, Hiroyuki Hirakata
wiley +1 more source
Bibel presents talks on engineering disasters in Seattle, Minneapolis
University of North Dakota Mechanical Engineering Professor George Bibel, an expert on mass transportation disasters, recently presented invited and sponsored talks on engineering disasters and airplane crashes at the National Society of Profession ...
Dodds, David L.
core +1 more source
Water surface evaporation estimation is a key component of refined water resources management, particularly in arid regions with severe water scarcity. This study improves the classical Penman model in two aspects.
Xin Lei +4 more
doaj +1 more source
Do Natural Disasters Affect Human Capital? An Assessment Based on Existing Empirical Evidence [PDF]
The last few years have seen a notable increase in the number of studies investigating the causes and effects of natural disasters in many dimensions. This paper seeks to review and assess available empirical evidence on the ex-post microeconomic effects
Baez, Javier E. +2 more
core
Microscale 3D‐Printed Digital Strain Switches for Embedded Mechanical Computation
Microscale 3D‐printed strain switches on flexible films convert deformation into native digital signals at geometry defined thresholds. A closed form model predicts switching from 3000 to 15 000 microstrain and is validated across 110 devices. Reliable ohmic closure and strain activated AND, OR, and XOR logic point toward low‐power mechanical ...
Regan Kubicek +3 more
wiley +1 more source
Study region: In arid and semi-arid regions, high evaporation losses from plains reservoirs pose a significant challenge to the effective management of water resources.
Shaolei Wang +4 more
doaj +1 more source
Nearly hyperuniform disordered photonic slabs guide light along prescribed freeform pathways without relying on lattice symmetry. A pathway‐first design embeds curved channels within a photonic bandgap hyperuniform network, maintaining high transmission through freeform bends.
Timothy Amoah +8 more
wiley +1 more source
During China’s rapid urbanization, cities are threatened by ever more severe meteorological disasters. Urban meteorological disasters are characterized by massive destruction, high diffusion, and extensive social impact, which further complicate ...
Yuan XIN +4 more
core +1 more source
Collision‐Resilient Winged Drones Enabled by Tensegrity Structures
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui +5 more
wiley +1 more source

