scholarly journals Application the Prediction Methods for Determination of UAV Coordinates

2016 ◽  
Vol 20 (2) ◽  
pp. 35-39
Author(s):  
Damian Wierzbicki ◽  
Kamil Krasuski
Keyword(s):  
Prediction Methods

Determination of Fragment Impact Sensitivity Prediction Methods

1983 ◽  
Author(s):  
Edmund Swider ◽  
Hyla Napadensky ◽  
Edward Hahn ◽  
Richard Rindner
Keyword(s):  
Impact Sensitivity ◽  
Prediction Methods

A summary review of mechanical properties prediction methods for textile reinforced polymer composites

2005 ◽  
Vol 219 (2) ◽  
pp. 91-109 ◽  
Author(s):  
J J Crookston ◽  
A C Long ◽  
I A Jones
Keyword(s):  
Mechanical Properties ◽  
Detailed Analysis ◽  
Polymer Composites ◽  
Numerical Models ◽  
Textile Composites ◽  
Prediction Methods ◽  
Reinforced Polymer ◽  
Mechanical Properties Prediction ◽  
The Subject

The use of textile reinforcements for polymer composite components has become a common practice due to the favourable material costs and labour requirements compared with traditional unidirectional prepreg composites, and the high stiffness and strength compared with the use of randomly orientated reinforcements. As a result, determination of both elastic properties and failure behaviour of textile composites has been the subject of substantial research in recent years. This paper presents a review of some of the analytical and numerical models pertaining to the mechanics of textile composites which have been published in the literature. Particular consideration is given to the suitability of models for the analysis of non-orthogonal weave structures such as those which have been deformed in shear during component manufacture. The intention of the paper is not to provide a detailed analysis of the underlying mathematics of the models discussed, but rather to provide an overview of the work conducted in order to direct further reading.

scholarly journals International activities in HF sky-wave field-strength estimation (period 1956-1991)

1998 ◽  
Vol 41 (5-6) ◽  
Author(s):  
P. A. Bradley
Keyword(s):  
World War Ii ◽  
Field Strength ◽  
Wave Field ◽  
Measurement Data ◽  
Service Planning ◽  
Prediction Methods ◽  
World War ◽  
Empirical Prediction ◽  
Radio Signals

Methods for the determination of the strengths of radio signals reflected from the ionosphere and propagated to distant locations are required for service planning and circuit operation. Efforts are described following World War II to arrive at agreed procedures and some of the features of the various empirical prediction methods that have been formulated over the years are discussed. The problems are highlighted of determining a "best" method from among those available. Measurement data collected for this purpose are reviewed and attention is drawn to their limitations of accuracy and coverage. Even comparison of predicted and measured values is not straightforward, and the techniques that have been developed to do this are considered.

CLINICAL SIGNIFICANCE OF DETERMINATION OF LIPOCALIN-2 ASSOCIATED WITH NEUTROPHILIC GELATINASE IN PATIENTS WITH CHRONIC KIDNEY DISEASE (LITERATURE REVIEW)

2018 ◽  
Vol 22 (4) ◽  
pp. 50-56
Author(s):  
A. V. Eremeeva ◽  
V. V. Dlin ◽  
A. A. Korsunsky ◽  
N. M. Zaikova ◽  
E. D. Bondarenko
Keyword(s):  
Chronic Kidney Disease ◽  
Kidney Disease ◽  
Literature Review ◽  
Research Data ◽  
Prediction Methods ◽  
Lipocalin 2 ◽  
Rate Of Progression ◽  
Adults And Children ◽  
New Biomarkers

Improvement of diagnosis and prediction methods of the chronic kidney disease is associated with the identification and studying of new  biomarkers, not depending on kidney filtration function. In this literature review we present the research data of Lipocalin-2 associated with  neutrophilic gelatinase in diagnostics, assessment of severity and rate of  progression of chronic kidney disease both in adults and children.

scholarly journals Prediction of Gas Emission from Floor Coalbed of Steeply Inclined and Extremely Thick Coal Seams Mined Using the Horizontal Sublevel Top-Coal Caving Method

2019 ◽  
Author(s):  
Yanwei Hu ◽  
Gang Wang ◽  
Jianqiang Chen ◽  
Zhiyuan Liu ◽  
Cheng Fan
Keyword(s):  
Numerical Simulation ◽  
Prediction Model ◽  
Coal Mine ◽  
Integration Method ◽  
Prediction Methods ◽  
Coal Seams ◽  
Gas Emission ◽  
Mining Operations ◽  
Finite Element Numerical Simulation

In the steeply inclined and extremely thick coal seams (SIETCS) mined using the horizontal sublevel top-coal caving (HSTCC) method, the uncertainty of gas emission is a safety threat to the mining operations. In order to reduce the occurrence of accidents, the determination of gas emission is crucial. In this paper, we first proposed a prediction model for workers at the floor coalbed to calculate gas emission on site. We then put forward a finite element numerical simulation for researchers to predict gas emission from the floor coalbed. At last, we measured gas emitted from the floor coalbed of SIETCS in Wudong Coal Mine in a specific mining period and used the data to verify the applicability and accuracy of these two gas-emission prediction methods. The results showed that the gas emission from Wudong Coal Mine was 1.08 m3/min calculated based on the prediction model and 1.07 m3/min obtained using the user-defined integration method. Both methods have their own advantages, disadvantages and applicable objects, and are important in predicting gas emission from SIETCS mined using HSTCC method.

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

Distance to SN 1987A and the LMC

1999 ◽  
Vol 190 ◽  
pp. 549-554
Author(s):  
Nino Panagia
Keyword(s):  
Angular Size ◽  
Large Magellanic Cloud ◽  
Magellanic Cloud ◽  
Light Curves ◽  
Distance Modulus ◽  
Absolute Size ◽  
Sn 1987A

Using the new reductions of the IUE light curves by Sonneborn et al. (1997) and an extensive set of HST images of SN 1987A we have repeated and improved Panagia et al. (1991) analysis to obtain a better determination of the distance to the supernova. In this way we have derived an absolute size of the ringRabs= (6.23 ± 0.08) x 1017cm and an angular sizeR″ = 808 ± 17 mas, which give a distance to the supernovad(SN1987A) = 51.4 ± 1.2 kpc and a distance modulusm–M(SN1987A) = 18.55 ± 0.05. Allowing for a displacement of SN 1987A position relative to the LMC center, the distance to the barycenter of the Large Magellanic Cloud is also estimated to bed(LMC) = 52.0±1.3 kpc, which corresponds to a distance modulus ofm–M(LMC) = 18.58±0.05.

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