Results 261 to 270 of about 2,665,933 (332)
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Advanced Materials & Technologies, 2020
Currently the lowest optically determinable pressure values are around 102 bar, making the pressure below inaccessible for optical detection. This work shows for the first time how to overcome these limitations, and optically monitor the low pressure ...
M. Runowski +4 more
semanticscholar +1 more source
Currently the lowest optically determinable pressure values are around 102 bar, making the pressure below inaccessible for optical detection. This work shows for the first time how to overcome these limitations, and optically monitor the low pressure ...
M. Runowski +4 more
semanticscholar +1 more source
A Vacuum-driven Origami “Magic-ball” Soft Gripper
IEEE International Conference on Robotics and Automation, 2019Soft robotics has yielded numerous examples of soft grippers that utilize compliance to achieve impressive grasping performances with great simplicity, adaptability, and robustness.
Shuguang Li +6 more
semanticscholar +1 more source
Emergency Radiology, 2016
This article describes the theory of the formation of the vacuum phenomenon (VP), the detection of the VP, the different medical causes, the different locations of the presentation of the VP, and the differential diagnoses. In the human body, the cavitation effect is recognized on radiological studies; it is called the VP. The mechanism responsible for
Youichi, Yanagawa +7 more
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This article describes the theory of the formation of the vacuum phenomenon (VP), the detection of the VP, the different medical causes, the different locations of the presentation of the VP, and the differential diagnoses. In the human body, the cavitation effect is recognized on radiological studies; it is called the VP. The mechanism responsible for
Youichi, Yanagawa +7 more
openaire +2 more sources
Origami-Based Vacuum Pneumatic Artificial Muscles with Large Contraction Ratios
Soft Robotics, 2019A novel linear actuator called origami-based vacuum pneumatic artificial muscle (OV-PAM) is proposed in this study that can produce large forces (>400 N) with a contraction ratio >90% of the active length of the actuator.
Jin-Gyu Lee, H. Rodrigue
semanticscholar +1 more source
Vacuum, 2020
AlSi12Fe alloy die castings were produced by vacuum-assisted high pressure die casting (HPDC) process under different vacuum levels: 275 mbar, 112 mbar, and 72 mbar.
Chen Hu +3 more
semanticscholar +1 more source
AlSi12Fe alloy die castings were produced by vacuum-assisted high pressure die casting (HPDC) process under different vacuum levels: 275 mbar, 112 mbar, and 72 mbar.
Chen Hu +3 more
semanticscholar +1 more source
Classical vacuum versus quantum vacuum
Optik, 2008Abstract We discuss the concept of quantum vacuum in comparison with the classical concept of vacuum in the context of light-wave propagation. The role played by quantum fluctuations is examined with respect to the behaviour of photons as the quanta of electromagnetic field and also in relation to the fact that photons can be regarded as non-zero ...
M.A. Grado-Caffaro, M. Grado-Caffaro
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Vacuum tribological behaviors of CoCrFeNi high entropy alloy at elevated temperatures
, 2020High entropy alloys (HEAs) are an important candidate for high temperature mechanical systems. Here, effects of atmosphere, temperature and counterparts on the vacuum tribological behaviors of CoCrFeNi HEA fabricated by spark plasma sintering were ...
Yushan Geng +5 more
semanticscholar +1 more source
Journal of Cataract and Refractive Surgery, 1995
A new method of performing continuous curvilinear capsulorhexis is described. It involves the use of a fine point of suction applied to the torn flap of anterior capsule through a fine cannula. This technique offers excellent control of the tear and requires no viscoelastic to maintain the anterior chamber.
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A new method of performing continuous curvilinear capsulorhexis is described. It involves the use of a fine point of suction applied to the torn flap of anterior capsule through a fine cannula. This technique offers excellent control of the tear and requires no viscoelastic to maintain the anterior chamber.
openaire +2 more sources
International Journal of Theoretical Physics, 1982
Couldany universe satisfy the following conditions? (i) Each volume of space contains only a finite amount of information, because space and time come in discrete units. (ii) Over some range of size and speed, the mechanics of this world are approximately classical.
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Couldany universe satisfy the following conditions? (i) Each volume of space contains only a finite amount of information, because space and time come in discrete units. (ii) Over some range of size and speed, the mechanics of this world are approximately classical.
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Coexistence of intravertebral vacuum and intradiscal vacuum
Joint Bone Spine, 2006The pathophysiology of intravertebral vacuum (IVV) remains unclear, although vertebral osteonecrosis is often incriminated. Gas may migrate from the disk to the vertebral body. The objective of this study was to investigate the relations between IVV and intradiscal vacuum (IDV).We prospectively evaluated the presence of radiological findings suggestive
Thomas, Armingeat +3 more
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