PRODUCTION OF RF SLAB PLASMA USING RECTANGULAR MAGNETIC LINE CUSP FIELD

1993 ◽  
pp. 679-682 ◽  
Author(s):  
K. TAKAHASHI ◽  
S. HASHIMOTO ◽  
E. YABE ◽  
K. TAKAYAMA ◽  
K. YAMAUCHI
Keyword(s):  
Magnetic Line

Study of the Manufacture about Piezoelectric Nanogenerator under Micro Vibration and its Performance

2011 ◽  
Vol 105-107 ◽  
pp. 2109-2112
Author(s):  
Jian Guo Sheng ◽  
Ping Zeng ◽  
Can Can Zhang
Keyword(s):  
Piezoelectric Materials ◽  
Science And Technology ◽  
Electrical Energy ◽  
Ambient Vibration ◽  
Magnetic Line ◽  
Vibration Condition ◽  
Working Principle ◽  
Commercial Value ◽  
Micro Vibration ◽  
Piezoelectric Nanogenerators

With the development of science and technology, the smaller sizes generator, the more attention by people. The main purpose of this article is to manufacture piezoelectric nanogenerator under micro vibration and its working principle is introduced and its performance is studied. The results show that, using the present nanomaterials, piezoelectric materials can be prepared. When its wind in copper laps, under the situation of micro pulse vibration its can turn into electrical energy, thus yield piezoelectric nanogenerators. In ambient vibration condition, piezoelectric materials produce larger rated current and voltage. However, copper laps cutting magnetic line of force produce less rated current and voltage. So the piezoelectric nanogenerators can be separately used to supply power. If multiple piezoelectric nanogenerator in tandem may produce higher voltage, current and power, which possess commercial value.

scholarly journals Energetics and structure of the lower E region associated with sporadic E layer

2008 ◽  
Vol 26 (9) ◽  
pp. 2929-2936 ◽  
Author(s):  
K.-I. Oyama ◽  
K. Hibino ◽  
T. Abe ◽  
R. Pfaff ◽  
T. Yokoyama ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Data ◽  
Magnetic Line ◽  
Height Range ◽  
Sounding Rockets ◽  
Main Structure ◽  
Irregular Structures ◽  
E Region ◽  
Sporadic E Layer ◽  
Sporadic E

Abstract. The electron temperature (Te), electron density (Ne), and two components of the electric field were measured from the height of 90 km to 150 km by one of the sounding rockets launched during the SEEK-2 campaign. The rocket went through sporadic E layer (Es) at the height of 102 km–109 km during ascent and 99 km–108 km during decent, respectively. The energy density of thermal electrons calculated from Ne and Te shows the broad maximum in the height range of 100–110 km, and it decreases towards the lower and higher altitudes, which implies that a heat source exists in the height region of 100 km–110 km. A 3-D picture of Es, that was drawn by using Te, Ne, and the electric field data, corresponded to the computer simulation; the main structure of Es is projected to a higher altitude along the magnetic line of force, thus producing irregular structures of Te, Ne and electric field in higher altitude.

PRODUCTION OF LARGE VOLUME CYLINDRICAL RF PLASMA USING CIRCULAR MAGNETIC LINE CUSP FIELD

1993 ◽  
pp. 683-686 ◽  
Author(s):  
K. YAMAUCHI ◽  
M. SHIBAGAKI ◽  
A. KONO ◽  
K. TAKAHASHI ◽  
T. SHEBUYA ◽  
...  
Keyword(s):  
Large Volume ◽  
Rf Plasma ◽  
Magnetic Line

scholarly journals A novel approach for the analysis of the geometry involved in determining light curves of pulsars

2019 ◽  
Vol 490 (1) ◽  
pp. 1437-1450
Author(s):  
Daniele Viganò ◽  
Diego F Torres
Keyword(s):  
Reference Frames ◽  
Spectral Energy Distribution ◽  
Light Curves ◽  
Spectral Energy ◽  
Radius Of Curvature ◽  
Rotational Axis ◽  
Magnetic Line ◽  
Pulsar Magnetosphere ◽  
Radiation Process ◽  
Novel Approach

ABSTRACT In this work, we introduce the use of the differential geometry Frenet–Serret equations to describe a magnetic line in a pulsar magnetosphere. These equations, which need to be solved numerically, fix the magnetic line in terms of their tangent, normal, and binormal vectors at each position, given assumptions on the radius of curvature and torsion. Once the representation of the magnetic line is defined, we provide the relevant set of transformations between reference frames; the ultimate aim is to express the map of the emission directions in the star corotating frame. In this frame, an emission map can be directly read as a light curve seen by observers located at a certain fixed angle with respect to the rotational axis. We provide a detailed step-by-step numerical recipe to obtain the emission map for a given emission process, and give a set of simplified benchmark tests. Key to our approach is that it offers a setting to achieve an effective description of the system’s geometry together with the radiation spectrum. This allows to compute multifrequency light curves produced by a specific radiation process (and not just geometry) in the pulsar magnetosphere, and intimately relates with averaged observables such as the spectral energy distribution.

Calculation of Magnetic Field of the 168 kA Aluminum Reduction Cell with ANSYS

2012 ◽  
Vol 524-527 ◽  
pp. 1993-1996
Author(s):  
Yan Li Jiang ◽  
Liang Yu ◽  
Nai Xiang Feng
Keyword(s):  
Magnetic Field ◽  
Aluminum Reduction Cell ◽  
Short Axis ◽  
Magnetic Line ◽  
Magnetic Intensity ◽  
Aluminum Reduction ◽  
Reduction Cell ◽  
Project Analysis ◽  
Intensity Vector ◽  
The Magnetic Field

The magnetic field of the 168 kA aluminum reduction cell was calculated with the software ANSYS in our study. The calculated results showed that the magnetic line of the aluminum and electrolyte in cell formed a clockwise swirl. The X and Z magnetic intensity of aluminum was similar with the antisymmetric distribution and the magnetic intensity vector of aluminum reduced along the -Z axis. The X, Y and Z magnetic intensity in the electrolyte under the anode bottom was similar with the antisymmetric distribution along short axis (Y axis), long axis (X axis) and short axis (Y axis), respectively. The magnetic intensity vector of electrolyte in the gap of the anode was higher than that under the anode bottom. The X and Z magnetic intensity in the interface of melt was also similar with the antisymmetric distribution. The numerical simulations with ANSYS have the important references for project analysis and diagnose.

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