Research, Studies and Investigations on Spectral Reflectance and Absorption Characteristics of Camouflage Paint Materials and Natural Objects

1954 ◽  
Author(s):  
Max Kronstein
Keyword(s):  
Spectral Reflectance ◽  
Natural Objects ◽  
Absorption Characteristics ◽  
Paint Materials ◽  
Research Studies

Identification of Geospatial Objects Using Spectral Pattern

2019 ◽  
pp. 882-893
Author(s):  
Subhabrata Barman
Keyword(s):  
Spectral Reflectance ◽  
Target Surface ◽  
Classification Rules ◽  
Spectral Image ◽  
Incident Wavelength ◽  
Reflectance Curve ◽  
Spectral Pattern ◽  
Multispectral Remote Sensing ◽  
Unique Signature ◽  
Absorption Characteristics

Solar radiation on hitting a target surface may be transmitted, absorbed or reflected. Different materials reflect and absorb differently at different wavelengths. The reflectance spectrum of a material is a plot of the fraction of radiation reflected as a function of the incident wavelength and serves as a unique signature for the material. In principle, a material can be identified from its spectral reflectance signature if the sensing system has sufficient spectral resolution to distinguish its spectrum from those of other materials. This premise provides the basis for multispectral remote sensing. Nguyen Dinh Duong (1997) proposed a method for decomposition of multi-spectral image into several sub-images based on modulation (spectral pattern) of the spectral reflectance curve. The hypothesis roots from the fact that different ground objects have different spectral reflectance and absorption characteristics which are stable for a given sensor. This spectral pattern can be considered as invariant and be used as one of classification rules.

Identification of Geospatial Objects Using Spectral Pattern

2017 ◽  
pp. 1-15
Author(s):  
Subhabrata Barman
Keyword(s):  
Spectral Reflectance ◽  
Target Surface ◽  
Classification Rules ◽  
Spectral Image ◽  
Incident Wavelength ◽  
Reflectance Curve ◽  
Spectral Pattern ◽  
Multispectral Remote Sensing ◽  
Unique Signature ◽  
Absorption Characteristics

Solar radiation on hitting a target surface may be transmitted, absorbed or reflected. Different materials reflect and absorb differently at different wavelengths. The reflectance spectrum of a material is a plot of the fraction of radiation reflected as a function of the incident wavelength and serves as a unique signature for the material. In principle, a material can be identified from its spectral reflectance signature if the sensing system has sufficient spectral resolution to distinguish its spectrum from those of other materials. This premise provides the basis for multispectral remote sensing. Nguyen Dinh Duong (1997) proposed a method for decomposition of multi-spectral image into several sub-images based on modulation (spectral pattern) of the spectral reflectance curve. The hypothesis roots from the fact that different ground objects have different spectral reflectance and absorption characteristics which are stable for a given sensor. This spectral pattern can be considered as invariant and be used as one of classification rules.

Luminous Reflectance (Visual Albedo) of Natural Objects

1956 ◽  
Vol 37 (4) ◽  
pp. 142-144 ◽  
Author(s):  
Rudolf Penndorf
Keyword(s):  
Spectral Reflectance ◽  
Published Data ◽  
Natural Objects ◽  
Rock Formations

The spectral reflectance of natural objects is taken from Krinov's measurements. Based on these data, the luminous reflectance (visual albedo) is computed for natural objects. The results obtained are compared with other published data. The wealth of data can now be grouped into four classes and twenty-four main types. The luminous reflectance of most natural objects (except snow and a few rock formations) remains below 15 percent.

Conducting Dysphagia Research in the Field Through Partnerships With Clinicians

2011 ◽  
Vol 20 (2) ◽  
pp. 36-41
Author(s):  
Catriona M. Steele
Keyword(s):  
Dysphagia Research ◽  
Research Studies

Research studies that involve collaborations between scientists and frontline clinicians provide rich opportunities for advancing knowledge in the field of dysphagia. However, various challenges exist in bridging research goals and clinical priorities. In this article, we explore the perspectives of those who have participated in previous collaborations to gain insights regarding the challenges, surprises, and benefits of such collaboration.

The absorption characteristics of bifendate solid dispersion in rat intestinal tissue

2009 ◽  
Vol 00 (00) ◽  
pp. 090810023429058-9
Author(s):  
Juan Cheng ◽  
Zheng Hong Wu ◽  
Qineng Neng Ping ◽  
Bogang Wang ◽  
Junjun Lu
Keyword(s):  
Solid Dispersion ◽  
Intestinal Tissue ◽  
Absorption Characteristics

Mother-to-child transmission of HIV: developing integration of healthcare programmes with clinical, social and basic research studies

2003 ◽  
Vol 92 (11) ◽  
pp. 1343-1348
Author(s):  
Menu E ◽  
Scarlatti G ◽  
Barré-Sinoussi F ◽  
Gray G ◽  
Bollinger B ◽  
...  
Keyword(s):  
Basic Research ◽  
Mother To Child Transmission ◽  
Child Transmission ◽  
Mother To Child ◽  
Research Studies
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