Results 111 to 120 of about 109,785 (250)
Load Distributing Metamaterials Via Discrete Optimization
Mechanical metamaterials are computationally optimized to homogenize transmitted forces by minimizing the spread of reaction forces. The resulting architectures transform localized loading into broader, more uniform force distributions and experimentally demonstrate robust load spreading under quasi‐static and impact loading.
Andrea Detry +6 more
wiley +1 more source
MECHANICAL-ACOUSTIC SYSTEM EQUIVALENT OF SEISMIC-WAVE GENERATOR WITH MULTIFIER
The application of methods of the electro-acoustic and electro-mechanical analogies to simulate a seismic-wave generator with hydraulic multiplier by the electric circuit is analyzed.
Vladimir P. Pevchev, Andrey K. Kudinov
doaj
The Role of Cocoa Commodity as a Base Sector in Indonesia’s Regional Development
Indonesia’s cocoa commodity as one of the leading commodities, has the potential to improve the country’s economy. However, the increasing export volume is not matched by the decreasing production due to the decreasing land area.
Amanda Sekar Adyanti +2 more
doaj +1 more source
Simple Analytics and Empirics of the Government Spending Multiplier and Other “Keynesian” Paradoxes [PDF]
Factor supply increases (depresses) output for many of the same reasons that the government spending multiplier might be less (greater) than one. Data from three 2008-9 recession episodes - the labor supply shifts associated with the seasonal cycle, the ...
Casey B. Mulligan
core
2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa +5 more
wiley +1 more source
Shocks to the M1 multiplier–in particular, shocks to the reserves/deposits ratio–played a key role in driving U.S. macroeconomic fluctuations during the interwar period, but their role in the post-WWII era has been almost uniformly negligible.
Benati, Luca, Ireland, Peter
core +1 more source
A hybrid additive manufacturing platform integrates direct droplet writing of metallic composite with VAT photopolymerization to fabricate architected soft magnetic composites. This approach enables microscale patterning of high‐viscosity materials for programmable actuators, adaptive fluidic devices, and switchable adhesives, offering tunable ...
Yeowon Yoon +4 more
wiley +1 more source
Melanin content directly controls fungal spore mechanical properties, with pigmented spores achieving rupture forces two orders of magnitude higher than hyaline spores. Environmental stress drives this quantity‐quality tradeoff; stressed species invest energy in melanin‐reinforced, mechanically superior thick‐walled, super‐hydrophobic spores, while ...
Atul Agrawal, Steven E. Naleway
wiley +1 more source
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow +6 more
wiley +1 more source
A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui +5 more
wiley +1 more source

