Full-Electrical Writing and Reading of Magnetization States in a Magnetic Junction with Symmetrical Structure and Antiparallel Magnetic Configuration

ACS Nano ◽  
2021 ◽  
Author(s):  
Junwei Tong ◽  
Yanzhao Wu ◽  
Rui Zhang ◽  
Lianqun Zhou ◽  
Gaowu Qin ◽  
...  
Keyword(s):  
Magnetic Configuration ◽  
Symmetrical Structure

Observations for the Role of Flux rope Eruption in a Geoeffective Solar Flare

2014 ◽  
Vol 4 (2) ◽  
pp. 555-564
Author(s):  
A.M Aslam
Keyword(s):  
Solar Flare ◽  
Flux Rope ◽  
Magnetic Configuration ◽  
Solar Dynamics Observatory ◽  
Multi Wavelength ◽  
Solar Dynamics ◽  
Halo Coronal Mass Ejection ◽  
Mass Ejection ◽  
The Waves

On September 24, 2011 a solar flare of M 7.1 class was released from the Sun. The flare was observed by most of the space and ground based observatories in various wavebands. We have carried out a study of this flare to understand its causes on Sun and impact on earth. The flare was released from NOAA active region AR 11302 at 12:33 UT. Although the region had already produced many M class flares and one X- class flare before this flare, the magnetic configuration was not relaxed and still continued to evolve as seen from HMI observations. From the Solar Dynamics Observatory (SDO) multi-wavelength (131 Ã…, 171 Ã…, 304 Ã… and 1600Ã…) observations we identified that a rapidly rising flux rope triggered the flare although HMI observations revealed that magnetic configuration did not undergo a much pronounced change. The flare was associated with a halo Coronal Mass Ejection (CME) as recorded by LASCO/SOHO Observations. The flare associated CME was effective in causing an intense geomagnetic storm with minimum Dst index -103 nT. A radio burst of type II was also recorded by the WAVES/WIND. In the present study attempt is made to study the nature of coupling between solar transients and geospace.

scholarly journals Geometric Design-based Dimensional Synthesis of a Novel Metamorphic Multi-fingered Hand with Maximal Workspace

2021 ◽  
Vol 34 (1) ◽  
Author(s):  
Wei An ◽  
Jun Wei ◽  
Xiaoyu Lu ◽  
Jian S. Dai ◽  
Yanzeng Li
Keyword(s):  
Geometric Design ◽  
Practical Significance ◽  
Design Parameters ◽  
Control Algorithms ◽  
Discretization Method ◽  
Dimensional Synthesis ◽  
Symmetrical Structure ◽  
Design And Optimization ◽  
Total Length

AbstractCurrent research on robotic dexterous hands mainly focuses on designing new finger and palm structures, as well as developing smarter control algorithms. Although the dimensional synthesis of dexterous hands with traditional rigid palms has been carried out, research on the dimensional synthesis of dexterous hands with metamorphic palms remains insufficient. This study investigated the dimensional synthesis of a palm of a novel metamorphic multi-fingered hand, and explored the geometric design for maximizing the precision manipulation workspace. Different indexes were used to value the workspace of the metamorphic hand, and the best proportions between the five links of the palm to obtain the optimal workspace of the metamorphic hand were explored. Based on the fixed total length of the palm member, four nondimensional design parameters that determine the size of the palm were introduced; through the discretization method, the influence of the four design parameters on the workspace of the metamorphic hand with full-actuated fingers and under-actuated fingers was analyzed. Based on the analysis of the metamorphic multi-fingered hand, the symmetrical structure of the palm was designed, resulting in the largest workspace of the multi-fingered hand, and proved that the metamorphic palm has a massive upgrade for the workspace of underactuated fingers. This research contributed to the dimensional synthesis of metamorphic dexterous hands, with practical significance for the design and optimization of novel metamorphic hands.

scholarly journals Scaling Up the Production of Electrodeposited Nanowires: A Roadmap towards Applications

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1657
Author(s):  
Claudia Fernández-González ◽  
Jesús C. Guzmán-Mínguez ◽  
Alejandra Guedeja-Marrón ◽  
Eduardo García-Martín ◽  
Michael Foerster ◽  
...  
Keyword(s):  
Electrochemical Synthesis ◽  
Room Temperature ◽  
Scaling Up ◽  
Magnetic Configuration ◽  
Metallic Nanowires ◽  
Production Time ◽  
Novel Synthesis ◽  
Conventional Methods

The use of metallic nanowires is mostly reduced to scientific areas where a small quantity of nanostructures are needed. In order to broaden the applicability of these nanomaterials, it is necessary to establish novel synthesis protocols that provide a larger amount of nanowires than the conventional laboratory fabrication processes at a more competitive cost. In this work, we propose several modifications to the conventional electrochemical synthesis of nanowires in order to increase the production with considerably reduced production time and cost. To that end, we use a soft anodization procedure of recycled aluminum at room temperature to produce the alumina templates, followed by galvanostatic growth of CoFe nanowires. We studied their morphology, composition and magnetic configuration, and found that their properties are very similar to those obtained by conventional methods.

Magnetic Configuration Effect on MHD Modes in NBI Heated Plasmas in CHS

1995 ◽  
Vol 27 (3T) ◽  
pp. 231-234 ◽  
Author(s):  
S. Sakakibara ◽  
H. Yamada ◽  
K. Toi ◽  
A. Ejiri ◽  
K. Ida ◽  
...  
Keyword(s):  
Magnetic Configuration

Investigation of Advanced Divertor Magnetic Configuration for DEMO Tokamak Reactor

2013 ◽  
Vol 63 (1T) ◽  
pp. 70-75 ◽  
Author(s):  
Nobuyuki Asakura ◽  
Kichiro Shinya ◽  
Kenji Tobita ◽  
Kazuo Hoshino ◽  
Katsuhiro Shimizu ◽  
...  
Keyword(s):  
Magnetic Configuration ◽  
Tokamak Reactor

Two-fluid tearing instability in force-free magnetic configuration

2004 ◽  
Vol 11 (9) ◽  
pp. 4468-4482 ◽  
Author(s):  
V. V. Mirnov ◽  
C. C. Hegna ◽  
S. C. Prager
Keyword(s):  
Magnetic Configuration ◽  
Tearing Instability ◽  
Two Fluid
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