scholarly journals MEASUREMENT AND ANALIZE REFLECTION COEFFICIENT OF THINGS AT FREQUENCY 1260 MHz

SAINTEKBU ◽  
2016 ◽  
Vol 1 (1) ◽  
Author(s):  
Dyah Sulistyowati ◽  
Erwin Eristiana
Keyword(s):  
Reflection Coefficient ◽  
Programming Language ◽  
Database System ◽  
Wave Signal ◽  
Object Database ◽  
The Difference

px; "> <Reflection wave by objects (things) that affected phases changing from wave and influenced thepower of wave signal. The difference kind of things will give different reflection coefficient. Wavesignal that’s happen is depends on the kind of the thing. There are three nature of the object that’scontinuing, absorb and reflecting the wave signal. Reflected coefficient with negative value that’smeans the object could reflecting the signal and the positive value means the object could absorb orcontinuing the wave signal.Reflection coefficient data could be saved in a database that its data from kinds of thing in tableform could be access anytime its needed, so we can easily to find out the value of reflection coefficient.Process of data relation in database system used SQL as programming language. Keywords: Reflection coefficient, kinds of object, database system, SQL.

REFLECTION COEFFICIENT OF AN ELECTROMAGNETIC WAVE IN CONDUCTIVE MEDIA

2018 ◽  
pp. 100-106
Author(s):  
M. S. Sudakova ◽  
M. L. Vladov ◽  
M. R. Sadurtdinov
Keyword(s):  
Reflection Coefficient ◽  
Ground Penetrating Radar ◽  
Electromagnetic Waves ◽  
Water Contamination ◽  
Survey Design ◽  
Direct And Inverse Problems ◽  
The Difference ◽  
Ground Penetrating ◽  
Ideal Dielectric

Within the ground penetrating radar bandwidth the medium is considered to be an ideal dielectric, which is not always true. Electromagnetic waves reflection coefficient conductivity dependence showed a significant role of the difference in conductivity in reflection strength. It was confirmed by physical modeling. Conductivity of geological media should be taken into account when solving direct and inverse problems, survey design planning, etc. Ground penetrating radar can be used to solve the problem of mapping of halocline or determine water contamination.

Basic determinants of epicardial transudation

1997 ◽  
Vol 273 (3) ◽  
pp. H1408-H1414 ◽  
Author(s):  
R. H. Stewart ◽  
D. A. Rohn ◽  
S. J. Allen ◽  
G. A. Laine
Keyword(s):  
Reflection Coefficient ◽  
Coronary Sinus ◽  
Myocardial Edema ◽  
Hydraulic Conductance ◽  
Linear Increase ◽  
Left Ventricular ◽  
Edema Formation ◽  
Anesthetized Dogs ◽  
The Difference ◽  
Osmotic Reflection Coefficient

Myocardial edema formation, which has been shown to compromise cardiac function, and increased epicardial transudation (pericardial effusion) have been shown to occur after elevation of myocardial venous and lymphatic outflow pressures. The purposes of this study were to estimate the hydraulic conductance and osmotic reflection coefficient for the epicardium and to determine the effect of coronary sinus hypertension and cardiac lymphatic obstruction on epicardial fluid flux (JV,e/Ae). A Plexiglas hemispheric capsule was attached to the left ventricular epicardial surface of anesthetized dogs. JV,e/Ae was determined over 30-min periods for three intracapsular pressures (-5, -15, and -25 mmHg) and two intracapsular solutions exerting colloid osmotic pressures of 7.0 and 2.0 mmHg. Hydraulic conductance was estimated to be 3.7 +/- 0.5 microliters.h-1.cm-2.mmHg-1. An osmotic reflection coefficient of 0.9 was calculated from the difference in JV,e/Ae of 16.5 +/- 8.4 microliters.h-1.cm-2 between the two solutions. Graded coronary sinus hypertension induced a linear increase in JV,e/Ae, which was significantly greater in dogs without cardiac lymphatic occlusion than in those with occlusion.

Adding Prolog Rules and OOPs Inheritance to Legacy Databases

1991 ◽  
Author(s):  
Art Goldschmidt ◽  
Dipayan Gangopadhyay
Keyword(s):  
Logic Programming ◽  
Programming Language ◽  
Object Oriented ◽  
Database System ◽  
Storage Management ◽  
Complex Objects ◽  
Rule Based ◽  
System Product ◽  
Viable Approach ◽  
Trigger Mechanisms

Abstract We present a viable approach to add rules capability or object orientation to legacy databases. Using a combination of language compilation, run-time trigger mechanisms and inter-language call facility, we integrate an object-oriented logic programming language, called OOLP, with an existing CIM Database System Product, IBM’s CIM CDF. The result is a system that provides storage management of complex objects, rule-based validation, object oriented knowledge modelling and declarative query capability.

scholarly journals Studying the difference between natural and programming language corpora

2019 ◽  
Vol 24 (4) ◽  
pp. 1823-1868 ◽  
Author(s):  
Casey Casalnuovo ◽  
Kenji Sagae ◽  
Prem Devanbu
Keyword(s):  
Programming Language ◽  
The Difference

FIODBS: an interoperable object-database system

2002 ◽  
Author(s):  
Xu Xuebiao ◽  
Gu Ning ◽  
Shi Baile ◽  
Tao Chun ◽  
Liang Sheng ◽  
...  
Keyword(s):  
Database System ◽  
Object Database

scholarly journals Influence on Calculated Blood Pressure of Measurement Posture for the Development of Wearable Vital Sign Sensors

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Shouhei Koyama ◽  
Hiroaki Ishizawa ◽  
Akio Sakaguchi ◽  
Satoshi Hosoya ◽  
Takashi Kawamura
Keyword(s):  
Blood Pressure ◽  
Calibration Curve ◽  
Pressure Measurement ◽  
Pulse Wave ◽  
Blood Pressure Measurement ◽  
Wave Signal ◽  
Fbg Sensor ◽  
Pressure Calculation ◽  
Measurement Height ◽  
The Difference

We studied a wearable blood pressure sensor using a fiber Bragg grating (FBG) sensor, which is a highly accurate strain sensor. This sensor is installed at the pulsation point of the human body to measure the pulse wave signal. A calibration curve is built that calculates the blood pressure by multivariate analysis using the pulse wave signal and a reference blood pressure measurement. However, if the measurement height of the FBG sensor is different from the reference measurement height, an error is included in the reference blood pressure. We verified the accuracy of the blood pressure calculation with respect to the measurement height difference and the posture of the subject. As the difference between the measurement height of the FBG sensor and the reference blood pressure measurement increased, the accuracy of the blood pressure calculation decreased. When the measurement height was identical and only posture was changed, good accuracy was achieved. In addition, when calibration curves were built using data measured in multiple postures, the blood pressure of each posture could be calculated from a single calibration curve. This will allow miniaturization of the necessary electronics of the sensor system, which is important for a wearable sensor.

scholarly journals Accretion disk around the rotating Damour–Solodukhin wormhole

2019 ◽  
Vol 79 (11) ◽  
Author(s):  
R. Kh. Karimov ◽  
R. N. Izmailov ◽  
K. K. Nandi
Keyword(s):  
Gravitational Wave ◽  
Accretion Disk ◽  
Generic Properties ◽  
Wave Signal ◽  
Strong Lensing ◽  
Zero Values ◽  
The Difference ◽  
Stable Radius ◽  
Kinematic Properties

AbstractA new rotating generalization of the Damour–Solodukhin wormhole (RDSWH), called Kerr-like wormhole, has recently been proposed and investigated by Bueno et al. for echoes in the gravitational wave signal. We show a novel feature of the RDSWH, viz., that the kinematic properties such as the ISCO or marginally stable radius $$r_{\mathrm{ms}}$$rms, efficiency $$\epsilon $$ϵ and the disk potential $$V_{\mathrm{eff}}$$Veff are independent of $$\lambda $$λ (which means they are identical to their KBH counterparts for any given spin). Differences however appear in the emissivity properties for higher values $$0.1<\lambda \le 1$$0.1<λ≤1 (say) and for the extreme spin $$a_{\star }=0.998$$a⋆=0.998. The kinematic and emissivity are generic properties as variations of the wormhole mass and the rate of accretion within the model preserve these properties. Specifically, the behavior of the luminosity peak is quite opposite to each other for the two objects, which could be useful from the viewpoint of observations. Apart from this, an estimate of the difference $$\varDelta _{\lambda }$$Δλ in the maxima of flux of radiation F(r) shows non-zero values but is too tiny to be observable at present for $$\lambda < 10^{-3}$$λ<10-3 permitted by the strong lensing bound. The broad conclusion is that RDSWH are experimentally indistinguishable from KBH by accretion characteristics.

scholarly journals A New High-Performance Monopulse Feed with a Simple Comparator Network

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Nyambayar Jargalsaikhan ◽  
Jae-Hoon Bang ◽  
Seong-Gon Choi ◽  
Bierng-Chearl Ahn ◽  
Andrii Gorshkov
Keyword(s):  
Reflection Coefficient ◽  
High Performance ◽  
Circular Waveguide ◽  
Power Combiner ◽  
Radiating Element ◽  
Elevation Difference ◽  
Left And Right ◽  
The Difference ◽  
Difference Pattern

This paper presents a new high-performance five-element monopulse feed with a simple comparator network for Cassegrain reflector applications. The radiating element is a tapered dielectric rod fed by a circular waveguide which is in turn excited by a printed dipole. The center element is used for the sum pattern, while top and bottom elements are used for the elevation difference pattern, and left and right elements for the azimuth difference pattern. Out-of-phase excitation for the difference pattern is obtained by antisymmetrically placing two dipoles and combining their outputs with a power combiner. The optimally designed feed has been fabricated and measured. Measurement shows that the feed has the maximum sum pattern gain of 16.8 dBi, the difference pattern null depth of –21 dBi, and the reflection coefficient of less than –10 dB over 13.9–16.7 GHz.

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