scholarly journals Precision of a Low-Cost InGaAs Detector for Near Infrared Photometry

2013 ◽  
Vol 125 (931) ◽  
pp. 1021-1030 ◽  
Author(s):  
Peter W. Sullivan ◽  
Bryce Croll ◽  
Robert A. Simcoe
Keyword(s):  
Near Infrared ◽  
Low Cost ◽  
Infrared Photometry ◽  
Ingaas Detector

scholarly journals Feasibility of Using VIS/NIR Spectroscopy and Multivariate Analysis for Pesticide Residue Detection in Tomatoes

Processes ◽  
2021 ◽  
Vol 9 (2) ◽  
pp. 196
Author(s):  
Araz Soltani Nazarloo ◽  
Vali Rasooli Sharabiani ◽  
Yousef Abbaspour Gilandeh ◽  
Ebrahim Taghinezhad ◽  
Mariusz Szymanek ◽  
...  
Keyword(s):  
Near Infrared ◽  
Cross Validation ◽  
Low Cost ◽  
Moving Average ◽  
Nir Spectroscopy ◽  
Control Treatment ◽  
Residue Detection ◽  
Non Destructive ◽  
Reflective Spectroscopy

The purpose of this work was to investigate the detection of the pesticide residual (profenofos) in tomatoes by using visible/near-infrared spectroscopy. Therefore, the experiments were performed on 180 tomato samples with different percentages of profenofos pesticide (higher and lower values than the maximum residual limit (MRL)) as compared to the control (no pesticide). VIS/near infrared (NIR) spectral data from pesticide solution and non-pesticide tomato samples (used as control treatment) impregnated with different concentrations of pesticide in the range of 400 to 1050 nm were recorded by a spectrometer. For classification of tomatoes with pesticide content at lower and higher levels of MRL as healthy and unhealthy samples, we used different spectral pre-processing methods with partial least squares discriminant analysis (PLS-DA) models. The Smoothing Moving Average pre-processing method with the standard error of cross validation (SECV) = 4.2767 was selected as the best model for this study. In addition, in the calibration and prediction sets, the percentages of total correctly classified samples were 90 and 91.66%, respectively. Therefore, it can be concluded that reflective spectroscopy (VIS/NIR) can be used as a non-destructive, low-cost, and rapid technique to control the health of tomatoes impregnated with profenofos pesticide.

Near infrared photometry of stellar maser sources

1986 ◽  
Vol 10 (1) ◽  
pp. 62-66 ◽  
Author(s):  
Ke-ping Zhou ◽  
Yun-xiang Hao ◽  
Pei-sheng Chen ◽  
Yun Zhang ◽  
Heng Gao
Keyword(s):  
Near Infrared ◽  
Infrared Photometry ◽  
Maser Sources

scholarly journals Aperture Synthesis CO(J=1—0) Observations and Near-Infrared Photometry of the Non-Barred Seyfert Galaxy NGC 5033

2003 ◽  
Vol 55 (1) ◽  
pp. 103-119 ◽  
Author(s):  
Kotaro Kohno ◽  
Baltasar Vila-Vilaró ◽  
Seiichi Sakamoto ◽  
Ryohei Kawabe ◽  
Sumio Ishizuki ◽  
...  
Keyword(s):  
Near Infrared ◽  
Seyfert Galaxy ◽  
Aperture Synthesis ◽  
Infrared Photometry

scholarly journals Near-Infrared Photometry of Globular Clusters NGC 6287 and NGC 6341 (M92): The Formation of the Galactic Halo

2001 ◽  
Vol 122 (6) ◽  
pp. 3136-3154 ◽  
Author(s):  
Jae-Woo Lee ◽  
Bruce W. Carney ◽  
Laura K. Fullton ◽  
Peter B. Stetson
Keyword(s):  
Globular Clusters ◽  
Near Infrared ◽  
Galactic Halo ◽  
Infrared Photometry

scholarly journals NEAR-INFRARED THERMAL EMISSION DETECTIONS OF A NUMBER OF HOT JUPITERS AND THE SYSTEMATICS OF GROUND-BASED NEAR-INFRARED PHOTOMETRY

2015 ◽  
Vol 802 (1) ◽  
pp. 28 ◽  
Author(s):  
Bryce Croll ◽  
Loic Albert ◽  
Ray Jayawardhana ◽  
Michael Cushing ◽  
Claire Moutou ◽  
...  
Keyword(s):  
Near Infrared ◽  
Thermal Emission ◽  
Infrared Photometry ◽  
Hot Jupiters

scholarly journals THE HIGH A V Quasar Survey: Reddened Quasi-Stellar Objects selected from optical/near-infrared photometry. II.

2015 ◽  
Vol 217 (1) ◽  
pp. 5 ◽  
Author(s):  
J.-K. Krogager ◽  
S. Geier ◽  
J. P. U. Fynbo ◽  
B. P. Venemans ◽  
C. Ledoux ◽  
...  
Keyword(s):  
Near Infrared ◽  
Infrared Photometry ◽  
Stellar Objects ◽  
Quasi Stellar Objects
Sign in / Sign up

Export Citation Format

Share Document