Channel selection using information content analysis: A case study of CO2 retrieval from near infrared measurements

2010 ◽  
Vol 111 (9) ◽  
pp. 1296-1304 ◽  
Author(s):  
Le Kuai ◽  
Vijay Natraj ◽  
Run-Lie Shia ◽  
Charles Miller ◽  
Yuk L. Yung
Keyword(s):  
Content Analysis ◽  
Information Content ◽  
Near Infrared ◽  
Channel Selection ◽  
Infrared Measurements

IMAGE OF THE REPUBLIC OF MORDOVIA IN THE MEDIA VOLGA FEDERAL DISTRICT (BASED ON CONTENT ANALYSIS OF NEWS PUBLICATIONS)

2020 ◽  
Vol 10 (4) ◽  
pp. 44-52
Author(s):  
LARISA ZAITSEVA ◽  
Keyword(s):  
Content Analysis ◽  
Information Content ◽  
Federal District ◽  
Information Space ◽  
Political News ◽  
Social Sphere ◽  
The Media ◽  
The Republic ◽  
Number Of Publications

The territorial image is formed both purposefully by the subjects of image-making, and spontaneously-based on the influence of information content published in various media. The purpose of the research is to analyze the image of the Republic of Mordovia in the information space of the Volga Federal district. The image of the territory formed by external target audiences by means of news materials is studied using the method of case study and content analysis of publications: “Volga news”, “Federal Press” news of the PFD, “Pravda PFD”. The authors conclude that modern reality is perceived through the prism of the information field created by mass media. The media creates images filled with certain data, facts, colored by emotions, on the basis of which representations, opinions, judgments, and assessments are subsequently formed. The media play a significant role in shaping the territorial image, especially for external target audiences who are not familiar with the region and do not have their own assessment knowledge and experience. Most of the information content about the Republic in the studied media is related to the main thematic blocks: politics, economy, social sphere, culture (art, sports). Moreover, if in the publications “Volga news” and “Pravda PFD” mention of the region prevails in the economic block, then in the publications “Federal Press” and “Nezavisimaya Gazeta” - in the political one. The Volga news publication significantly dominates the rest in terms of the number of publications about Mordovia. The content of publications is mostly positive and neutral related to the issues of economic development of the territory and the preparation and holding of the world football championship. Pravda PFD mentions the Republic in the context of news from neighboring territories, most of the publications date back to 2018, but here the context is related to the Republic's positions among the regions of the PFD in various ratings. The publication “Federal-Press” forms a generally reflective image of the territory, focusing on the negative aspects of regional life. “Nezavisimaya Gazeta”, giving priority to political news, maintains a neutral and reflective context of publications, paying attention to the key problems of the territory. Thus, the desired image of the region is counter-dictated to the image broadcast by the media through various information channels, so it is necessary to constantly monitor the information space and timely correction of the broadcast materials.

scholarly journals Quantification of uncertainties of water vapour column retrievals using future instruments

2013 ◽  
Vol 6 (2) ◽  
pp. 359-370 ◽  
Author(s):  
H. Diedrich ◽  
R. Preusker ◽  
R. Lindstrot ◽  
J. Fischer
Keyword(s):  
Water Vapour ◽  
Information Content ◽  
Surface Albedo ◽  
Near Infrared ◽  
Single Channel ◽  
High Surface ◽  
Optimal Estimation ◽  
Optimal Position ◽  
Infrared Measurements ◽  
Absorption Channel

Abstract. This study presents a quantification of uncertainties of total column water vapour retrievals based on simulated near-infrared measurements of upcoming instruments. The concepts of three scheduled spectrometers were taken into account: OLCI (Ocean and Land Color Instrument) on Sentinel-3, METimage on an EPS-SG (EUMETSAT Polar System – Second Generation) satellite and FCI (Flexible Combined Imager) on MTG (Meteosat Third Generation). Optimal estimation theory was used to estimate the error of a hypothetical total water vapour column retrieval for 27 different atmospheric cases. The errors range from 100% in very dry cases to 2% in humid cases with a very high surface albedo. Generally, the absolute uncertainties increase with higher water vapour column content due to H2O-saturation and decrease with a brighter surface albedo. Uncertainties increase with higher aerosol optical thickness, apart from very dark cases. Overall, the METimage channel setting enables the most accurate retrievals. The retrieval using the MTG-FCI build-up has the highest uncertainties apart from very bright cases. On the one hand, a retrieval using two absorption channels increases the accuracy, in some cases by one order of magnitude, in comparison to a retrieval using just one absorption channel. On the other hand, a retrieval using three absorption channels has no significant advantage over a two-absorption channel retrieval. Furthermore, the optimal position of the absorption channels was determined using the concept of the "information content". For a single channel retrieval, a channel at 900 or 915 nm has the highest mean information content over all cases. The second absorption channel is ideally weakly correlated with the first one, and therefore positioned at 935 nm, in a region with stronger water vapour absorption.

Temperature and Path Length Optimisation for near Infrared Measurement of Liquid Samples: An Alternative Approach

2007 ◽  
Vol 15 (2) ◽  
pp. 71-80 ◽  
Author(s):  
M.J. Sáiz-Abajo ◽  
J.M. González-Sáiz ◽  
C. Pizarro
Keyword(s):  
Path Length ◽  
Near Infrared ◽  
Alternative Approach ◽  
Infrared Measurements ◽  
Infrared Measurement ◽  
Different Origins ◽  
Experimental Design Methodology ◽  
Experimental Effort ◽  
Selection Of

Traditionally, when performing a spectroscopic measurement, temperature and path length are normally set by modifying one factor at a time. This fact means that spectroscopists can be unaware of some possible interaction between these factors and it supposes that a lot of experimental effort is required before inexperienced researchers understand the extent of the variation these may introduce. In this study, experimental design methodology and the subsequent evaluation of results were proposed and applied to this problem in order to make the selection of conditions easier and ensure that it is performed correctly. The present paper is a case study which focused on the selection of path length and temperature for near infrared measurements of vinegar samples from different origins. The main objective was to ensure repeatability between replicates and to make sure that absorbance values in the spectra fell within the linear absorbance range of 0.5–2 au. This paper reports the detection of possible interactions between the factors which can lead to erroneous interpretation of results.

Case Study of Latest Type Near Infrared Color Defect Detector

2019 ◽  
Vol 73 (3) ◽  
pp. 218-221
Author(s):  
Kihachiro Bannno
Keyword(s):  
Near Infrared

Considerações sobre motivação e produtividade: estudo de caso em uma delegacia da polícia civil em Minas Gerais

Revista Foco ◽  
2018 ◽  
Vol 11 (3) ◽  
pp. 110
Author(s):  
Rafaella Cristina Campos ◽  
Natália Fernandes Fonseca ◽  
Odemir Vieira Baeta
Keyword(s):  
Content Analysis ◽  
Intangible Assets ◽  
Institutional Context ◽  
Minas Gerais ◽  
Clear Correlation ◽  
Classical Sense ◽  
Institutional Rules ◽  
Fixed Grid ◽  
Depth Interviews

O objetivo é averiguar a correlação dos fatores motivacionais e produtivos no contexto institucional da Polícia Civil. O estudo de caso foi conduzido por entrevistas em profundidade com um Delegado de Polícia, um Investigador de Polícia, e um Escrivão de Polícia. A análise de conteúdo foi utilizada. Conclui-se que há evidente correlação entre o desenvolvimento de artefatos motivacionais, sejam eles de ordem ambiental ou individual, com a produtividade na instituição da Polícia Civil. Destaca-se também, que apesar do controle e avaliação dos índices de produtividade serem predominantemente burocráticos, institucionalizados e legitimados, a ligação que se estabelece com a manifestação dos artefatos motivacionais é subjetiva, relacional e intangível nas normas institucionais. Destaca-se este evento neste artigo, porque como foi visto anteriormente, tanto a natureza do trabalho, quanto o ambiente da Polícia Civil, estão em total desencontro ao desenvolvimento de produtividade e motivação no sentido clássico destas vertentes. The aims is to determine the correlation of the motivational and productive factors in the institutional context of the Civil Police. The case study was conducted by in-depth interviews with a Chief of Police, Police Investigator, and Actuary Police. The content analysis was used for fixed grid. It is concluded that there is clear correlation between the development of motivational artifacts, whether environmental or individual order, with productivity in the civil police institution. Also noteworthy is that despite the control and evaluation of productivity indexes were predominantly bureaucratic, institutionalized and legitimized, the connection that is established with the manifestation of motivational artifacts is subjective, relational and intangible assets in the institutional rules. It highlights this event in this article, because as discussed above, both the nature of the work, as the environment of the Civil Police, are in complete disagreement with the development of productivity and motivation in the classical sense of the aforementioned areas.

Freedom of speech is not freedom from ethics: the 2019 Israel Folau media controversy as a case study

2021 ◽  
pp. 1329878X2199289
Author(s):  
Jay Daniel Thompson ◽  
Denis Muller
Keyword(s):  
Content Analysis ◽  
Freedom Of Speech ◽  
Rugby Player ◽  
Ethical Principles ◽  
Framing Analysis ◽  
The Media ◽  
The One

This article examines how freedom of speech is framed in the media controversy surrounding the Australian rugby player Israel Folau’s April 2019 Instagram post. A content analysis and framing analysis of newspaper reportage reveals that the controversy has been largely discussed in terms of whether or not Folau’s speech was being curtailed and whether this curtailing indicates a broader, ideologically motivated censoriousness. This discussion is problematic in that it says little about the actual substance of Folau’s post. This article argues that debates surrounding freedom of speech such as the one involving Folau could and should be enriched by an engagement with ethical principles. This engagement is premised on a commitment to the free exchange of views, while acknowledging that ‘speech’ is not always inherently beneficial for democracy, nor worth defending.

Ligand Influence Versus Electronic Configuration of d-metal Ion in Determining the Fate of NIR Emission from LnIII Ions: A Case Study with CuII, NiII and ZnII Complexes.

2021 ◽  
Author(s):  
Abhineet Verma ◽  
Sk Saddam Hossain ◽  
Sailaja S Sunkari ◽  
Joseph Reibenspies ◽  
Satyen Saha
Keyword(s):  
Metal Ion ◽  
Selection Rule ◽  
Near Infrared ◽  
Electronic Configuration ◽  
Infrared Region ◽  
Direct Excitation ◽  
Characteristic Emission ◽  
Nir Emission ◽  
Near Infrared Region

Lanthanides (LnIII) are well known for their characteristic emission in the Near-Infrared Region (NIR). However, direct excitation of lanthanides is not feasible as described by Laporte’s parity selection rule. Here,...

scholarly journals Characterization and mapping of hematite ore mineral classes using hyperspectral remote sensing technique: a case study from Bailadila iron ore mining region

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Ibrahim Shaik ◽  
S. K. Begum ◽  
P. V. Nagamani ◽  
Narayan Kayet
Keyword(s):  
Infrared Absorption ◽  
Near Infrared ◽  
Spectral Feature ◽  
Absorption Feature ◽  
X Ray ◽  
Remote Sensing Technique ◽  
Ore Minerals ◽  
Feature Fitting ◽  
Hematite Ore

AbstractThe study demonstrates a methodology for mapping various hematite ore classes based on their reflectance and absorption spectra, using Hyperion satellite imagery. Substantial validation is carried out, using the spectral feature fitting technique, with the field spectra measured over the Bailadila hill range in Chhattisgarh State in India. The results of the study showed a good correlation between the concentration of iron oxide with the depth of the near-infrared absorption feature (R2 = 0.843) and the width of the near-infrared absorption feature (R2 = 0.812) through different empirical models, with a root-mean-square error (RMSE) between < 0.317 and < 0.409. The overall accuracy of the study is 88.2% with a Kappa coefficient value of 0.81. Geochemical analysis and X-ray fluorescence (XRF) of field ore samples are performed to ensure different classes of hematite ore minerals. Results showed a high content of Fe > 60 wt% in most of the hematite ore samples, except banded hematite quartzite (BHQ) (< 47 wt%).

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