scholarly journals The Energy Conversion Rate of an Active Region Transient Brightening Estimated by Hinode Spectroscopic Observations

2021 ◽  
Vol 918 (2) ◽  
pp. 51
Author(s):  
Toshiki Kawai ◽  
Shinsuke Imada
Keyword(s):  
Active Region ◽  
Energy Conversion ◽  
Conversion Rate ◽  
Spectroscopic Observations

Effect of Coil Parameters on Rivet Deformation in Low Voltage Electromagnetic Riveting

2012 ◽  
Vol 602-604 ◽  
pp. 1887-1890
Author(s):  
Jiang Hua Deng ◽  
Chao Tang ◽  
Yi Ming Zheng ◽  
Yan Ran Zhan
Keyword(s):  
Energy Conversion ◽  
Cross Section ◽  
Discharge Current ◽  
Conversion Rate ◽  
Low Voltage ◽  
Current Amplitude ◽  
Deformation Degree ◽  
Section Size ◽  
Wire Cross Section ◽  
Electromagnetic Riveting

Electromagnetic riveting is a kind of energy conversion technology and forming coil is the key component of energy conversion. Coil parameters include the turns and wire cross section size. The effects of coil parameters on discharge current, riveting force, rivet deformation degree and energy conversion rate were investigated by experimental method in low voltage electromagnetic riveting. The results show that with the coil turns increasing, coil inductance increases, discharge current amplitude decreases, cycle increases, rivet deformation degree increases and the energy conversion rate improves when the coil wire cross section size is the same. And with the coil wire width increasing, the coil resistance decreases, discharge current amplitude increases, rivet deformation degree increases and the energy conversion rate improves when the coil turns is same. By rational design of coil turns and wire section size, low voltage electromagnetic riveting is an effective way to realize deformation of strain rate sensitive material TA1 rivets.

scholarly journals Modelling of Solar Coronal Loops

1992 ◽  
Vol 9 ◽  
pp. 661-662
Author(s):  
C. Jordan
Keyword(s):  
Energy Balance ◽  
Active Region ◽  
Active Regions ◽  
Coronal Loops ◽  
Loop Structure ◽  
X Rays ◽  
Spectroscopic Observations ◽  
Available Information ◽  
Solar Coronal

Modelling of coronal active regions in terms of loop structures began around 1974 (see Jordan 1975) and was stimulated by images of the corona in X-rays and the uv, obtained from rocket flights. Vaiana was a pioneer in this field (see Vaiana et al. 1973). The Skylab missions provided a fuller range of imaging and spectroscopic observations, and much of the available information is still based on these data (see Orrall 1981). Since 1975 a very large number of papers have been published on the various aspects of loop structure, heating and stability (see review by Mewe 1991). Here I can mention only a few points concerning the relation between observable parameters and the energy balance and heating requirements of active region loops.

scholarly journals Effect of Agricultural Feedstock to Energy Conversion Rate on Bioenergy and GHG Emissions

2015 ◽  
Vol 7 (5) ◽  
pp. 5981-5995 ◽  
Author(s):  
Chih-Chun Kung ◽  
Meng-Shiuh Chang
Keyword(s):  
Energy Conversion ◽  
Conversion Rate ◽  
Ghg Emissions

High Electromechanical Coupling Piezoelectrics - How High Energy Conversion Rate is Possible

1996 ◽  
Vol 459 ◽  
Author(s):  
Kenji Uchino
Keyword(s):  
Energy Conversion ◽  
Lead Zirconate Titanate ◽  
Conversion Rate ◽  
Electromechanical Coupling ◽  
Crystal Form ◽  
Lead Zirconate ◽  
High Energy ◽  
Coupling Factor ◽  
Lead Zinc ◽  
Titanate Ceramics

ABSTRACTA new category of piezoelectric ceramics with very high electromechanical coupling was discovered in a lead zinc niobate:lead titanate solid solution in a single crystal form. The maximum coupling factor k33 reaches 95%, which corresponds to the energy conversion rate twice as high as the conventional lead zirconate titanate ceramics. This paper reviews the previous studies on superior piezoelectricity in relaxor ferroelectric: lead titanate solid solutions and on the possible mechanisms of this high electromechanical coupling.

scholarly journals Effect of different lysine-metabolized energy ratio on performance of meat-type geese

2017 ◽  
pp. 39-42
Author(s):  
Ádám Dobos ◽  
Péter Bársony ◽  
János Posta ◽  
László Babinszky
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Energy Conversion ◽  
Feed Intake ◽  
Conversion Rate ◽  
Body Weight Gain ◽  
Energy Ratio ◽  
Feeding Costs ◽  
Growth Performances ◽  
Meat Type

The aim of the experiment was to determine, how the different ratios of the digestibility lysine/ metabolized energy (0.82, 0.87, 0.91 g DLYS/MJ AMEn) of the feed influence the performance of geese. There were 150 goslings (3 treatments, 5 cages/treatments, 10 birds/cages). The experiment has started and finished at the age of 3 and 9 weeks, respectively.The results of the experiment showed, the different ratios of DLYS/AMEn (0.82, 0.87, 0.91 g DLYS/MJ AMEn) did not influence the performance of young geese. Better growth performances were found for the 0.91 g DLYS/AMEn feed (feed intake, body weight gain, feed and energy conversion rate). This treatment coincided with high feeding costs. Based on these results we need more models and farm experiments to prove this tendency.

scholarly journals Numerical Study of the Collapse of Multiple Bubbles and the Energy Conversion during Bubble Collapse

Water ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 247 ◽  
Author(s):  
Jing Zhang ◽  
Lingxin Zhang ◽  
Jian Deng
Keyword(s):  
Energy Conversion ◽  
Conversion Rate ◽  
Focal Point ◽  
Numerical Study ◽  
Solid Wall ◽  
Bubble Collapse ◽  
Liquid Interfaces ◽  
Acoustic Damping ◽  
Multiple Bubbles ◽  
Peak Value

This paper investigates numerically the collapses of both a single cavitation bubble and a cluster consisting of 8 bubbles, concerning mainly on the conversions between different forms of energy. Direct numerical simulation (DNS) with volume of fluid (VOF) method is applied, considering the detailed resolution of the vapor-liquid interfaces. First, for a single bubble near a solid wall, we find that the peak value of the wave energy, or equivalently the energy conversion rate decreases when the distance between the bubble and the wall is reduced. However, for the collapses of multiple bubbles, this relationship between the bubble-wall distance and the conversion rate reverses, implying a distinct physical mechanism. The evolutions of individual bubbles during the collapses of multiple bubbles are examined. We observe that when the bubbles are placed far away from the solid wall, the jetting flows induced by all bubbles point towards the cluster centre, while the focal point shifts towards the solid wall when the cluster is very close to the wall. We note that it is very challenging to consider thermal and acoustic damping mechanisms in the current numerical methods, which might be significant contributions to the energy budget, and we leave it open to the future studies.

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