scholarly journals Analysis and identification of continuous line target in SAR echo based on sidelobe features

2019 ◽  
Vol 2019 (19) ◽  
pp. 5979-5981 ◽  
Author(s):  
Yangkai Wei ◽  
Xinliang Chen ◽  
Yujie Fan ◽  
Zegang Ding ◽  
Cheng Wen
Keyword(s):  
Continuous Line ◽  
Line Target

scholarly journals Focused Patterning of Electrospun Nanofibers Using a Dielectric Guide Structure

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1505
Author(s):  
Byeongjun Lee ◽  
Younghyeon Song ◽  
Chan Park ◽  
Jungmin Kim ◽  
Jeongbeom Kang ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Finite Elements ◽  
Electric Field ◽  
Electrospun Nanofibers ◽  
Electrospun Fibers ◽  
Continuous Line ◽  
Key Factors ◽  
Key Technology ◽  
Vertical Electric Field ◽  
Dielectric Guide

The patterning of electrospun fibers is a key technology applicable to various fields. This study reports a novel focused patterning method for electrospun nanofibers that uses a cylindrical dielectric guide. The finite elements method (FEM) was used to analyze the electric field focusing phenomenon and ground its explanation in established theory. The horizontal and vertical electric field strengths in the simulation are shown to be key factors in determining the spatial distribution of nanofibers. The experimental results demonstrate a relationship between the size of the cylindrical dielectric guide and that of the electrospun area accumulated in the collector. By concentrating the electric field, we were able to fabricate a pattern of less than 6 mm. The demonstration of continuous line and square patterning shows that the electrospun area can be well controlled. This novel patterning method can be used in a variety of applications, such as sensors, biomedical devices, batteries, and composites.

yAn on‐line target and rapid screening method for α ‐glucosidase inhibitors based on capillary electrophoresis

2021 ◽  
Author(s):  
Ying Zhang ◽  
Hai‐Yang Zhong ◽  
Stanislas Nsanzamahoro ◽  
Xiao‐Jun Yao ◽  
Wei‐Feng Wang ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Screening Method ◽  
Rapid Screening ◽  
Glucosidase Inhibitors ◽  
Line Target ◽  
On Line ◽  
Rapid Screening Method

Two-belt continuous line bucket system: Its concept design and fundamental bucket motion experiments

2015 ◽  
Vol 53 ◽  
pp. 125-131 ◽  
Author(s):  
Yoshiki Nishi ◽  
Tomohiro Yamai ◽  
Kohsuke Ikeda
Keyword(s):  
Concept Design ◽  
Continuous Line

Additive Manufacturing of Glass

2014 ◽  
Vol 136 (6) ◽  
Author(s):  
Junjie Luo ◽  
Heng Pan ◽  
Edward C. Kinzel
Keyword(s):  
Additive Manufacturing ◽  
Glass Powder ◽  
Processing Parameters ◽  
Gradient Index ◽  
Continuous Line ◽  
Single Track ◽  
Laser Melting ◽  
Powder Bed ◽  
Transparent Parts ◽  
Insight Into

Selective laser melting (SLM) is a technique for the additive manufacturing (AM) of metals, plastics, and even ceramics. This paper explores using SLM for depositing glass structures. A CO2 laser is used to locally melt portions of a powder bed to study the effects of process parameters on stationary particle formation as well as continuous line quality. Numerical modeling is also applied to gain insight into the physical process. The experimental and numerical results indicate that the absorptivity of the glass powder is nearly constant with respect to the processing parameters. These results are used to deposit layered single-track wide walls to demonstrate the potential of using the SLM process for building transparent parts. Finally, the powder bed process is compared to a wire-fed approach. AM of glass is relevant for gradient index optics, systems with embedded optics, and the formation of hermetic seals.

scholarly journals Tribo-electricity and friction. II.—Glass and solid elements

1928 ◽  
Vol 118 (779) ◽  
pp. 97-108 ◽  
Keyword(s):  
Physical Structure ◽  
Reliable Data ◽  
Chemical Characteristics ◽  
Continuous Line ◽  
Physical And Chemical Characteristics ◽  
Parallel Lines ◽  
Quantitative Results ◽  
Physical And Chemical

1. Experience teaches us that the arrangement of solids in a tribo-electric series is fallacious. We shall show in the next paper that in the case of three solids (A, B, C) A may be positive to B; and B to C; and yet C be positive to A. This may occur when the bodies are of different classes, say, metal, textile, glass, which have different physical and chemical characteristics. In the case of one material, one characteristic predominates; in another, another may be paramount. The true arrangement may prove ultimately to be in branching or parallel lines, rather than in one continuous line or series. The problem is to obtain reliable data of sign and amount of charge when two standard solids are rubbed together. The only hope of progress lies in the use of material of known composition and—even more important—of definite surface cleanliness and physical structure. Further, to obtain quantitative results the rubbing should be performed, not by hand, but in some regulated machine to insure consistency of action.

scholarly journals THE HUMAN RACHIS: CAN IT BE CONSIDERED A SHOCK ABSORBER (THAT WAS PRODUCED BY EXAPTATION) RATHER THAN A COLUMN?

2014 ◽  
Vol 6 (1) ◽  
Author(s):  
M. Tanga ◽  
F. Ghelli ◽  
G. Gelati
Keyword(s):  
Modal Analysis ◽  
Shock Absorber ◽  
Elastic System ◽  
Axial Direction ◽  
Continuous Line ◽  
Dynamic Stresses ◽  
Mechanical Feature ◽  
Physiological Conditions ◽  
Typical Function ◽  
Eigenvectors And Eigenvalues

Our paper is focused on two fundamental points: the first one is a terminological proposal and the second one is a question. Obviously these two things are strictly related one another. The terminological proposal is aimed to name “vertebral shock absorber” the human rachis (globally considered, when it is in physiological conditions) in its most typical function: to sustain static/dynamic stresses, that moreover are directed according to its axial direction, obviously when this coincides with gravitational line. This aspects can be studied by modal analysis and by the model of Eigenvectors and Eigenvalues. According to our opinion, the mechanical feature must be considered as prevalent if compared with the structural one. Following it human rachis is usually named “column”. This mechanic sustain is distributed on three lines that are summarily parallel and are linked one another (by isthmuses and vertebral arches to build an horizontal ring) so they can be considered a unique compact viscous-elastic system. Each one of these three vertical sub-structure is built as a stacking of metameric elements (modules) along a continuous line.

scholarly journals XXIX. An account of some experiments to measure the velocity of electricity and the duration of electric light

1834 ◽  
Vol 124 ◽  
pp. 583-591 ◽  
Keyword(s):  
Electric Machine ◽  
Angular Motion ◽  
Continuous Line ◽  
Rapid Motion ◽  
Royal Institution ◽  
Series Of Experiments ◽  
The Subject ◽  
Electric Light ◽  
Rotatory Motion

The path of a luminous or an illuminated point in rapid motion, it is well known, appears as a continuous line, in consequence of the after duration of the visual im­pression. There is nothing, however, in the appearance of such a line by which the eye can determine either the direction or the velocity of the motion which generates it. It occurred to me some years since, that if the motion which described the line in these cases were to be compounded with another motion, the direction and velocity of which were known, it would be easy, from an inspection of the resultant straight or curved line, to determine the velocity and direction of the former. Following up this idea, I made a series of experiments relating to the oscillatory motions of sono­rous bodies, too numerous, and not sufficiently connected with the subject of the pre­sent communication, to be detailed in this place. The satisfactory results thus ob­tained made me desirous to ascertain whether, by similar means, some information might not be gained respecting the direction and velocity of the electric spark : the method by which I then proposed to effect this purpose was first announced in a lec­ture delivered by Dr. Faraday at the Royal Institution in June, 1830. My attention was again drawn to the subject at the commencement of last year, and I attempted to realize the idea in the following manner. Fig. 1 represents the apparatus employed, which was screwed at a to the spindle of a whirling machine, so that a rapid rotatory motion might be given to it. The upper and lower parts, which were all of brass except the wooden disc b c , were insulated from each other by a stout glass rod d e ; a slip of tinfoil connected the ball h with a , and the upper ball g was capable of adjustment to various distances from the lower one h . When the ball f was placed within striking distance of the prime conductor of an electric machine, a spark passed between them, and also between the balls g and h , which could be separated to the distance of four inches, so as to exhibit a spark of that length. It is obvious, that if the angular motion of the balls were in any sensible proportion to the velocity of electricity, there would be a deviation between the upper and lower terminations of the line. The instrument revolving from left to right, if the motion of the spark be downwards, the deflection of the line should be as in fig. 2; and if its motion be upwards, it should be deflected as in fig. 3.

The Perception of Linear Gestalten by Rat and Monkey: Sensory Sensitivity or the Perception of Structure?

Perception ◽  
1975 ◽  
Vol 4 (4) ◽  
pp. 419-429 ◽  
Author(s):  
Brendan O McGonigle ◽  
Barry T Jones
Keyword(s):  
Discrimination Training ◽  
Squirrel Monkeys ◽  
Successive Discrimination ◽  
Continuous Line ◽  
Sensory Sensitivity

Four experiments on rats and squirrel monkeys are reported which show that the well-known transposition by animals to continuous from broken or interrupted line stimuli, first reported by Krechevsky, is attributable to their failure to transfer from simultaneous to successive discrimination of dot patterns. When given appropriate successive discrimination training, however, monkeys reverse their original preference and select dot instead of continuous line stimuli.

Abstracting images into continuous-line artistic styles

2013 ◽  
Vol 29 (6-8) ◽  
pp. 729-738 ◽  
Author(s):  
Fernando J. Wong ◽  
Shigeo Takahashi
Keyword(s):  
Continuous Line ◽  
Artistic Styles
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