Active bending mechanism employing granular jamming and vacuum-controlled adaptable gripper

Author(s):  
Takashi Mitsuda ◽  
Otsuka Shinsaku
Keyword(s):  
2011 ◽  
Vol 109 (7) ◽  
pp. 074314 ◽  
Author(s):  
Heung-Soon Lee ◽  
Maenghyo Cho ◽  
Byeong-Joo Lee

2012 ◽  
Vol 326-328 ◽  
pp. 18-23 ◽  
Author(s):  
Humberto Dória Silva ◽  
Luiz Cláudio Pereira Dória ◽  
Cristiana Pereira Dória ◽  
Cristiane Pereira Dória ◽  
Maria do Carmo Tatiana Dória Silva ◽  
...  

The metabolic secretions produced by the cells inside the human eye are accumulated simultaneously in all of its parts; subject only to their origin. However, the symptomatology is well characterized by the location of accumulation. Genetic factors are directly related to how the clumps of metabolic secretions occur and the form of accumulation is very specific to the movement of the eyes based on the activities performed by the patient, so any outcome is unpredictable. The outer retinal layers are avascular and are supplied by diffusion from the choriocapillatis. Abnormalities of retinal blood circulation and drainage of metabolic secretions are key indicators to retinal dysfunction and may point to perturbations of systemic circulation. The weakening of the cornea bending mechanism results in the loss of variation of intraocular pressure. Consequently, due to the increase of its work activities, the weakening of the forced convection mechanism of the metabolic secretions produced in the retina initiates the accumulation of these secretions without uniformity in the retina, causing gradual obstruction of its system of mass transport, nutrients and metabolic secretions. This accumulation is readily observed by pressing ones hands for several minutes on closed eyes, subsequently, there is the perception of light in one without a region of uniformity. This work analyzes the anatomic structure and biophysics, depicted in the scientific literature, along with the symptoms of the presbyopia treatment of the first author of this paper, to understand that the accumulation of metabolic secretions causes an agglutination and dehydration process by decanting that triggers the loss of flexibility of the fibrous coat, vascular coat (uveal tissue) and nervous coat (retina) and consequently the gradual obstruction of the system of mass transport in the retina, compromising its nutrition and obstructing the drainage of its metabolic secretion.


Author(s):  
Jayson Anton ◽  
Deming Shu ◽  
Steven P. Kearney ◽  
Ross Harder ◽  
Xianbo Shi ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Na-Young Park ◽  
In Hwang Kim ◽  
Yancheng Wen ◽  
Keun-Woo Lee ◽  
Sora Lee ◽  
...  

AbstractLeuO plays the role of a master regulator in the cyclic-L-phenylalanine-L-proline (cFP)-dependent signaling pathway in Vibrio vulnificus. cFP, as shown through isothermal titration calorimetry analysis, binds specifically to the periplasmic domain of ToxR. Binding of cFP triggers a change in the cytoplasmic domain of ToxR, which then activates transcription of leuO encoding a LysR-type regulator. LeuO binds to the region upstream of its own coding sequence, inhibiting its own transcription and maintaining a controlled level of expression. A five-bp deletion in this region abolished expression of LeuO, but a ten-bp deletion did not, suggesting that a DNA bending mechanism is involved in the regulation. Furthermore, binding of RNA polymerase was significantly lower both in the deletion of the ToxR binding site and in the five-bp deletion, but not in the ten-bp deletion, as shown in pull-down assays using an antibody against RNA polymerase subunit α. In summary, multiple factors are involved in control of the expression of LeuO, a master regulator that orchestrates downstream regulators to modulate factors required for survival and pathogenicity of the pathogen.


2013 ◽  
Vol 459 ◽  
pp. 432-439
Author(s):  
Hidemitsu Hamano ◽  
Hisaki Watari

The push-through bending process can be regarded as a bending mechanism with two fixed diepoints and two movable diepoints, resulting in a total of four points. It can also be regarded as acontinuous four-points bending. As compared to other bending processes, there is severe friction at the contact area betweenthematerial and die in push-through bending. In this paper, we clarify different aspects of lubrication and research excellent lubrication oil in push-through bending. Based on theresultsobtained, it was found that adhesion occursdepending on the lubricant used and the occurring force. It was also confirmed, that olefin is effective as a remedy for oiliness, in case of using a mineral oil-based lubricant. In addition, it was confirmed that excellent lubrication oil could be obtained by increasing the alcohol content and adjusting the content of synthetic ester. This is a good alternative to the more expensive olefin.


2017 ◽  
Author(s):  
T. Kadowaki ◽  
R. Kodaira ◽  
S. Hara
Keyword(s):  

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