Results 51 to 60 of about 174,051 (288)
Advanced Functional Materials, EarlyView.This study uncovers the unexplored role of intermolecular interactions in multiphoton absorption in coordination polymers. By analyzing [Zn2tpda(DMA)2(DMF)0.3], it shows how the electronic coupling of the chromophores and confinement in the MOF enhance two‐and three‐photon absorption.
Simon Nicolas Deger +11 more
wiley +1 more source
Comparison of Subsoiler Plow Performance using Different Vibration Wings Designs
Acta Technologica AgriculturaeThe study aims to manufacture and develop the vibrating wings for the subsoil plough and to evaluate the performance of the locally manufactured wings and their impact on the stability of the driver’s seat, noise, slipping, and fuel consumption.
Al-Aabagh Hussein Alaa Aldin +2 more
doaj +1 more source
Biological tribological properties between polyetheretherketone and patella cartilage
Cailiao gongcheng, 2019 Reciprocating sliding friction and wear tests were carried out on polyetheretherketone (PEEK) and natural patella cartilage using the pin-on-disk configuration at different normal loads, slipping velocity and friction pairs under 25% fetal bovine serum ...
ZHANG Xin-yue +3 more
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Systems Science & Control Engineering, 2022 In many applications, mobile vehicles operate over rough terrains to handle certain tasks and missions. Therefore, they are designed with tracks to deal with such irregular surfaces.
Ahmad Al-Jarrah, Mohammad Salah
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High mobility work station restraint support [PDF]
, 1971 Chair holds man in semistanding posture enabling astronauts to work comfortably with minimum restriction in weightless environment. Seat, angled at 130 deg to back support, twists and swivels up to 20 deg in all directions but forward. Two flexible thigh
Schermerhorn, R. S.
core +1 more source
Effective slip-length tensor for a flow over weakly slipping stripes
, 2013 We discuss the flow past a flat heterogeneous solid surface decorated by slipping stripes. The spatially varying slip length, $b(y)$, is assumed to be small compared to the scale of the heterogeneities, $L$, but finite.
Asmolov, Evgeny S. +3 more
core +1 more source
Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures
Advanced Functional Materials, EarlyView.3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina +11 more
wiley +1 more source
, 2018 A popular classroom demonstration is to draw a cycloid on a blackboard with a piece of chalk inserted through a hole at a point P with radius r = R from the center of a wood disk of radius R that is rolling without slipping along the chalk tray of the ...
Johnston, David C.
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Advanced Functional Materials, EarlyView.This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou +4 more
wiley +1 more source
Механика машин, механизмов и материалов, 2019 To date, many laws of Nature have been discovered. The knowledge of each of them led to the accelerated development of the relevant sections of Science and further, as a rule, to progress in any practical area of the community of people. The empirical
Leonid A. Sosnovskiy
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