Results 71 to 80 of about 1,486,164 (204)

Finite element modelling of an energy–storing prosthetic foot during the stance phase of transtibial amputee gait [PDF]

open access: yes, 2011
Energy-storing prosthetic feet are designed to store energy during mid-stance motion and to recover it during latestance motion. Gait analysis is the most commonly used method to characterize prosthetic foot behaviour during walking. In using this method,
BONNET, Xavier   +4 more
core   +5 more sources

The Pollutant Diethylhexyl Phthalate Regulates Hepatic Energy Metabolism via Species-Specific PPARα-Dependent Mechanisms

open access: yesEnvironmental Health Perspectives, 2010
The modulation of energetic homeostasis by pollutants has recently emerged as a potential contributor to the onset of metabolic disorders. Diethylhexyl phthalate (DEHP) is a widely used industrial plasticizer to which humans are widely exposed. Phthalates can activate the three peroxisome proliferator-activated receptor (PPAR) isotypes on cellular ...
Feige, J.N.   +10 more
openaire   +5 more sources

Properties of bio-based gum Arabic/clay aerogels [PDF]

open access: yes, 2016
Lightweight bio-based aerogels from sustainable gum Arabic (GA) and sodium montmorillonite (Na+-MMT) clay were prepared by means of a simple freeze-drying process. GA/clay aerogels showed high porosity (87.9%–94.9%) of mainly open type and the mechanical
Abt, Tobias Martin   +2 more
core   +2 more sources

Optimization of Mechanical Activation Modes for UHMWPE Dry Mixed Powders and Nanomodificators in the Planetary Ball Mill Pulverisette 7

open access: yesИнженерные технологии и системы, 2020
Introduction. Currently, in various technology areas, bronze, cast iron and other antifriction metals are replaced by polymer composites, which extend significantly service life of tribocoupling.
Vladimir N. Vodyakov   +1 more
doaj   +1 more source

Architecture-independent power bound for vibration energy harvesters [PDF]

open access: yes, 2013
The maximum output power of energy harvesters driven by harmonic vibrations is well known for a range of specific harvester architectures. An architecture-independent bound based on the mechanical input-power also exists and gives a strict limit on ...
Halvorsen, E   +3 more
core   +1 more source

Correlation Research of TBM Tunnel Rock Mechanical Characteristics, Chiseling Specific Energy, and Abrasion Performance: Case Study of Jiaozhou Bay Subsea Tunnel in Qingdao

open access: yesGeofluids, 2020
This paper takes Qingdao Jiaozhou Bay subsea tunnel project as the research object to study the relationship among rock mechanical parameters and chiseling specific energy and abrasion performance.
Yawei Wang, You Zhang, Guang Wu
doaj   +1 more source

Probing the interaction forces of prostate cancer cells with collagen I and bone marrow derived stem cells on the single cell level. [PDF]

open access: yes, 2013
Adhesion of metastasizing prostate carcinoma cells was quantified for two carcinoma model cell lines LNCaP (lymph node-specific) and PC3 (bone marrow-specific).
Benoit, Martin   +7 more
core   +3 more sources

Towards atomic-scale smooth surface manufacturing of β-Ga2O3 via highly efficient atmospheric plasma etching

open access: yesInternational Journal of Extreme Manufacturing
The highly efficient manufacturing of atomic-scale smooth β -Ga _2 O _3 surface is fairly challenging because β -Ga _2 O _3 is a typical difficult-to-machine material.
Yongjie Zhang   +4 more
doaj   +1 more source

Physicochemical and sensory characterization of an extruded product from blue maize meal and orange bagasse using the response surface methodology

open access: yesCyTA - Journal of Food, 2018
The mixtures of blue cornmeal and orange bagasse were processed in a single screw laboratory extruder. We used an experimental design, central composite rotatable, where the factors were as follows: extruder die temperature (153–187°C), feed moisture ...
Ricardo O. Navarro-Cortez   +6 more
doaj   +1 more source

A Study of Static and Dynamic Mechanical Behavior of the Substrate in Ultrasonic Consolidation [PDF]

open access: yes, 2006
A new 2-D FEM model is developed for a fundamental study of the time dependent mechanical behavior of the substrate in ultrasonic consolidation. The simulation shows that for a given vibration condition, the amplitude of contact friction stress and ...
Li, Leijun, Zhang, Chunbo
core   +1 more source

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