scholarly journals Structuring, Design and Analysis of a Pentab and SIW Cavity Backed Antenna for Iot Applications

2018 ◽  
Vol 7 (3.27) ◽  
pp. 345 ◽  
Author(s):  
S P. Cowsigan ◽  
D Saraswady
Keyword(s):  
Dielectric Loss ◽  
Planar Waveguide ◽  
Return Loss ◽  
The Other ◽  
Iot Applications ◽  
Wearable Antenna ◽  
Planar Form ◽  
New Form ◽  
Easy Integration ◽  
Parameter Values

Substrate Integrated Waveguide (SIW) cavity backed antenna technology is a new form of transmission line facilitating the realization of non-planar (waveguide based) circuits into planar form for easy integration with other planar (Microstrip) circuits and systems. They retain the low copper and dielectric loss property of traditional metallic waveguides and are widely used in integration of walls, floors and flame redundant wearable. SIW-CB antenna is a perfect candidate for IoT based wearable antenna with FR4 substrate. In this sense we structurizean efficient small size antenna for IoT applications to operate in the range of 5 – 15 GHz. FR4-epoxy  substrate is chosen so that the losses are minimized hence improving the efficiency. The proposed antenna resonates at 5.4, 6.9,9.1,11.5 & 14.2 GHz hence forming the Pentaband with a maximum return loss of 38.6 db. The other antenna parameter values are Gain 28.5 db, efficiency 90% and VSWR 1. 

Preventive Confinement of Dangerous Offenders

2004 ◽  
Vol 32 (1) ◽  
pp. 56-72 ◽  
Author(s):  
Stephen J. Morse
Keyword(s):  
Legal Theory ◽  
The Other ◽  
Legal Issue ◽  
Central Theme ◽  
Sexual Predators ◽  
Dangerous Offenders ◽  
New Form ◽  
The Law ◽  
The One ◽  
Constitutional Regime

How to respond justly to the dangers persistent violent offenders present is a vexing moral and legal issue. On the one hand, we wish to reduce predation; on the other, we want to treat predators fairly. The central theme of this paper is that it is difficult to achieve both goals without compromising one of them, and that both are being seriously undermined. I begin by explaining the legal theory, doctrine and practice governing dangerous offenders (DO) and demonstrate that the law leaves a gap in the ability to confine them. Next I explore the means by which the law has overtly or covertly sought to fill the gap. Many of these measures, especially the new form of civil commitment for sexual predators, dangerously conflate moral and medical categories. I conclude that pure preventive detention is more common than we usually assume, but that this practice violates fundamental assumptions concerning liberty under the American constitutional regime.

REFRACTIVE INDEX PROFILE RECONSTRUCTION OF PLANAR WAVEGUIDE FROM ITS MODE INTENSITY USING CHARACTERISTIC MATRIX METHOD

2001 ◽  
Vol 10 (02) ◽  
pp. 169-179
Author(s):  
HENRI P. URANUS ◽  
M. O. TJIA
Keyword(s):  
Refractive Index ◽  
Intensity Distribution ◽  
Planar Waveguide ◽  
Nonlinear Least Squares ◽  
Refractive Index Profile ◽  
Characteristic Matrix ◽  
Least Squares Regression ◽  
Index Profile ◽  
Measured Intensity ◽  
Parameter Values

A method is proposed for the reconstruction of refractive index profile of planar waveguide from its fundamental mode intensity profile. The reconstruction is performed by fitting the calculated intensity distribution iteratively with the measured intensity distribution employing nonlinear least-squares regression technique. At each stage of iteration, new trial parameter values are generated and used to form a waveguide model approximated by a multilayer structure with stepwise index distribution, upon which the intensity distribution is then calculated by using the characteristic matrix technique. This method was numerically examined by using samples of either known or unknown analytic expression of the index profile.

scholarly journals A new species of Tomopterna (Anura: Ranidae) from the Kruger National Park, with notes on related species

Koedoe ◽  
1975 ◽  
Vol 18 (1) ◽  
Author(s):  
N. I. Passmore ◽  
V. C. Carruthers
Keyword(s):  
New Species ◽  
National Park ◽  
Kruger National Park ◽  
The Other ◽  
Defence Mechanisms ◽  
Calling Behaviour ◽  
Mating Call ◽  
Mating Calls ◽  
New Form ◽  
A New Species

A new species of Tomoptema, T. krugerensis, sp. n., has been recorded from the Kruger National Park, Republic of South Africa.Morphologically it is very similar to T. delalandei cryptotis (Boulenger) but the mating call is markedly different from that of the other members of the genus and this is coupled with small but consistent morphological differences.T. krugerensis sp. n. is known to occur only on a portion of the western fringe of the vast sandveld areas of Mozambique, but possibly has a much wider distribution. Mating call, calling behaviour, eggs, early development and defence mechanisms are described. The affinities of the new form are discussed and the mating calls of other members of the genus are reviewed. Mating call is again shown to be a sensitive non-morphological taxonomic tool.

scholarly journals Cumulative Science via Bayesian Posterior Passing

2019 ◽  
Vol 3 ◽  
Author(s):  
Charlotte Olivia Brand ◽  
James Patrick Ounsley ◽  
Daniel Job Van der Post ◽  
Thomas Joshua Henry Morgan
Keyword(s):  
Data Analysis ◽  
Real Time ◽  
Statistical Technique ◽  
The Other ◽  
True Parameter ◽  
True Effect ◽  
Strong Candidate ◽  
Meta Analyses ◽  
Parameter Values

This paper introduces a statistical technique known as “posterior passing” in which the results of past studies can be used to inform the analyses carried out by subsequent studies. We first describe the technique in detail and show how it can be implemented by individual researchers on an experiment by experiment basis. We then use a simulation to explore its success in identifying true parameter values compared to current statistical norms (ANOVAs and GLMMs). We find that posterior passing allows the true effect in the population to be found with greater accuracy and consistency than the other analysis types considered. Furthermore, posterior passing performs almost identically to a data analysis in which all data from all simulated studies are combined and analysed as one dataset. On this basis, we suggest that posterior passing is a viable means of implementing cumulative science. Furthermore, because it prevents the accumulation of large bodies of conflicting literature, it alleviates the need for traditional meta-analyses. Instead, posterior passing cumulatively and collaboratively provides clarity in real time as each new study is produced and is thus a strong candidate for a new, cumulative approach to scientific analyses and publishing.

scholarly journals METHOD OF CONTROLLING PRESENCE OF FOREIGN SUBSTANCES AND OBJECTS IN THE BORE OF THE BARREL USING MONOCHROME LIGHT

2021 ◽  
pp. 53-57
Author(s):  
V. Kozachuk ◽  
M. Sliusarenko
Keyword(s):  
Combustion Products ◽  
The Other ◽  
Light Sources ◽  
Current Value ◽  
Precision And Accuracy ◽  
Shell Particles ◽  
The Military ◽  
Parameter Values ◽  
The Impact ◽  
Powder Combustion

In the article, the authors propose a method for controlling the presence of foreign substances and objects inside the barrel. The problem of surface cleanliness control remains relevant in many areas, ranging from sanitary cleaning to nanoelectronics. In the military sphere, this becomes particularly important during the cleaning of cannon barrels. Both powder combustion products and cartridge cap and bullet shell particles are deposited in the barrel during firing from guns. Under the impact of high temperatures, the bullet particles are partially oxidized and cover the barrel channel with a thin layer of deposit of oxides, which are difficult to dissolve. As a result, the density of the bullet abuting the walls changes. This affects the characteristics of its motion inside the barrel. The accuracy of the shot is reduced, and subsequently the precision and accuracy of shooting in general decreases. The essence of the proposed method consists in the fact that a light source is placed in the bore of the barrel on one side, and an optical device is placed on the other side, with the help of which the presence of foreign substances and objects is monitored. Unlike the known methods, this method is characterized in that several monochrome light sources in addition are placed in turn in the bore of the barrel from the breech part, and in the bore of the barrel from the muzzle part there is equipment for receiving (detecting) monochrome light. Then, obtained monochrome light is analyzed, current value of its defined parameters is determined. At the next stage, parameter values of monochrome light fixed during control are compared with parameter values of reference signatures, which had been obtained before the barrel was put in service. These values are stored in equipment memory. If the values of at least one of the parameters from at least one of the monochrome light sources are found to be inconsistent with the parameters of the reference signatures, the equipment for receiving and analyzing monochrome light gives a signal about the presence of foreign substances and objects in the bore of the barrel.

Escape Velocity

2016 ◽  
Author(s):  
Duncan Bell
Keyword(s):  
British Empire ◽  
Social Economic ◽  
Political Order ◽  
The Other ◽  
Human Sciences ◽  
Escape Velocity ◽  
Category Mistake ◽  
Political Dynamics ◽  
The Social ◽  
New Form

This chapter examines how historical time was conceptualized in imperial debate. It explores two broad variations that were articulated across the human sciences and in public debate, focusing in particular on the writings of historians. In the first, the modern British empire was figured as uniquely progressive, as capable—either in actuality or in potentia—of avoiding the social, economic, and political dynamics that had annihilated all previous specimens. This argument was most frequently employed in relation to India. The other strategy was to insist that the empire (or a part of it) was not really an empire at all, but rather a new form of political order that could circumvent the entropic degeneration of traditional imperial forms. To think otherwise was to make a category mistake. This argument was often applied to Britain and its settler colonies from the 1870s onwards. “Greater Britain,” as the settler colonial assemblage was often termed, could attain permanence, a kind of historical grace.

XI—The Identification of Klein's Quartic

1944 ◽  
Vol 62 (1) ◽  
pp. 83-91
Author(s):  
W. L. Edge
Keyword(s):  
Standard Form ◽  
Geometrical Interpretation ◽  
The Other ◽  
Veronese Surface ◽  
Quartic Polynomial ◽  
New Form ◽  
Quartic Curves ◽  
Quartic Polynomials

SummaryThere is a mode of specialising a quartic polynomial which causes a binary quartic to become equianharmonic and a ternary quartic to become a Klein quartic, admitting a group of 168 linear self-transformations. The six relations which must be satisfied by the coefficients of the ternary quartic were given by Coble forty years ago, but their true significance was never suspected and they have remained until now an isolated curiosity. In § 2 we give, in terms of a quadric and a Veronese surface, the geometrical interpretation of the six relations; we also give, in terms of the adjugate of a certain matrix, their algebraical interpretation. Both these interpretations make it abundantly clear that this set of relations specialising a ternary quartic has analogues for quartic polynomials in any number of variables, and point unmistakably to what these analogues are.That a ternary quartic is, when so specialised, a Klein quartic is proved in §§ 4–6. The proof bifurcates after (5.3); one branch leads instantly to the standard form of the Klein quartic while the other leads to another form which, on applying a known test, is found also to represent a Klein quartic. One or two properties of the curve follow from this new form of its equation. In §§ 8–10 some properties of a Veronese surface are established which are related to known properties of plane quartic curves; and these considerations lead to a discussion, in § 11, of certain hexads of points associated with a Klein curve.

Cultural Memory and the Anti-Western Utopias of Russian “Futurians”

Experiment ◽  
2017 ◽  
Vol 23 (1) ◽  
pp. 173-185
Author(s):  
Ekaterina Bobrinskaya
Keyword(s):  
Cultural Memory ◽  
The Other ◽  
Avant Garde ◽  
Russian Futurism ◽  
Eastern Cultures ◽  
New Form ◽  
Russian Modernism ◽  
The One ◽  
Strategic Goal

Abstract The paper deals with anti-Western motifs in Russian avant-garde culture, especially their refraction in Russian futurism. On the one hand, the tendency is linked to a strategic goal—asserting independent versions of this or that new form of art and, on the other, it coincides with fundamental features of Russian modernism such as archaization, national self-identification and Eastern cultures.

SIW Based Body Wearable Antenna For IoT Applications

2019 ◽  
Author(s):  
Soumen Banerjee ◽  
Ankita Singh ◽  
Srijan Dey ◽  
Sangram Chattopadhyay ◽  
Susovan Mukherjee ◽  
...  
Keyword(s):  
Iot Applications ◽  
Wearable Antenna
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