Results 41 to 50 of about 1,304,193 (168)

The Effect of Back Belt on Maximum Displacement and Center of Pressure Velocity in Different Lifting Styles

open access: yesPhysical Treatments, 2014
Purpose: Mechanical loading is said to be an important factor in the development of low back pain (LBP). One of the main concerns in manual material handling (MMH) tasks is lifting loads, as this activity is present in most jobs.
Maryam Saba   +3 more
doaj  

Narrowing band gap chemically and physically: conductive dense hydrocarbon

open access: yesCommunications Materials
Enhancing intermolecular interactions can reduce the band gap energy of organic molecules. Consequently, certain polycyclic aromatic hydrocarbons – typically wide-band-gap insulators – may undergo insulator-to-metal transitions under simple compression ...
Takeshi Nakagawa   +16 more
doaj   +1 more source

Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

open access: yesNature Communications, 2018
Up to now, all iron-based high-T c superconductors contain a square iron lattice. Here, Wang et al. report the observation of superconductivity in an iron honeycomb lattice accompanied with pressure-driven spin-crossover, in-plane lattice collapse and ...
Yonggang Wang   +14 more
doaj   +1 more source

Controllable multicolor emission from initially non-emissive organic molecules by pressure engineering

open access: yesNature Communications
Developing smart luminescent materials with off-on switchable responsiveness, which enables dark-to-bright state transitions in response to external stimuli, has garnered great interest across various domains.
Zhihao Xiao   +8 more
doaj   +1 more source

Crystalline polymeric phases of sulphur dioxide

open access: yesCommunications Chemistry
SO2 is a molecule of significant industrial and geochemical importance, known for its role in sulphuric acid production and its natural occurrence in volcanic processes.
Huichao Zhang   +7 more
doaj   +1 more source

MASTer: A high-performance stable temperature controller for high-pressure multi-anvil presses

open access: yesMatter and Radiation at Extremes
Maintaining stable high temperatures under pressure remains a challenge in high-pressure, high-temperature experiments using multi-anvil presses (MAPs).
Guoliang Niu   +5 more
doaj   +1 more source

A novel method for determining the resistivity of compressed superconducting materials

open access: yesMatter and Radiation at Extremes
The measurement of resistivity in a compressed material within a diamond anvil cell presents significant challenges. The high-pressure experimental setup makes it difficult to directly measure the size changes induced by pressure in the three ...
Liling Sun   +4 more
doaj   +1 more source

Bipedal robot center of pressure feedback simulation for center of mass learning

open access: yesIAES International Journal of Robotics and Automation (IJRA)
This research aims to create a walking bipedal robot with center of pressure feedback simulation for the center of mass learning, describe its feasibility for learning, describe students' motivation to learn, and describe students' science literacy after using it.
Afrizal Mayub   +2 more
openaire   +1 more source

Exciton engineering of 2D Ruddlesden–Popper perovskites by synergistically tuning the intra and interlayer structures

open access: yesNature Communications
Designing two-dimensional halide perovskites for high-performance optoelectronic applications requires deep understanding of the structure-property relationship that governs their excitonic behaviors. However, a design framework that considers both intra
Songhao Guo   +17 more
doaj   +1 more source

Mechanisms underlying center of pressure displacements in obese subjects during quiet stance

open access: yesJournal of NeuroEngineering and Rehabilitation, 2011
Objective the aim of this study was to assess whether reduced balance capacity in obese subjects is secondary to altered sensory information. Design cross sectional study.
Priano Lorenzo   +6 more
doaj   +1 more source

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