Autor: Patel, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Physical properties of fresh mahua
Autorzy:: Patel, M.
Pradhan, R.
Naik, S.
Powiązania:: https://bibliotekanauki.pl/articles/24590.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: density
flower
fresh mahua
Madhuca indica
mahua
mass
moisture content
physical property
surface area
Madhuca latifolia zob.Madhuca indica
Sapotaceae
tree
fruit
edible fruit
edible flower
Źródło:: International Agrophysics; 2011, 25, 3
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Changes in reflectance anisotropy of wheat crop during different phenophases
Autorzy:: M. Lunagaria, Manoj
R. Patel, Haridas
Powiązania:: https://bibliotekanauki.pl/articles/972709.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Tematy:: brdf
reflectance anisotropy
wheat
spectrodirectional measurement
goniometer
Opis:: The canopy structure of wheat changes significantly with growth stages and leads to changes in reflectance anisotropy. Bidirectional reflectance distribution function characterises the reflectance anisotropy of the targets, which can be approximated. Spectrodirectional reflectance measurements on wheat crop were acquired using a field goniometer system. The bidirectional reflectance spectra were acquired at 54 view angles to cover the hemispheric span up to 60° view zenith. The observations were made during early growth stages till maturity of the crop. The anisotropy was not constant for all wavelengths and anisotropic factors clearly revealed spectral dependence, which was more pronounced in near principal plane. In near infrared, wheat canopy expressed less reflectance anisotropy because of higher multiple scattering. The broad hotspot signature was noticeable in reflectance of canopy whenever view and solar angles were close. Distinct changes in bidirectional reflectance distribution function were observed during booting to flowering stages as the canopy achieves more uniformity, height and head emergence. The function clearly reveals bowl shape during heading to early milking growth stages of the crop. Late growth stages show less prominent gap and shadow effects. Anisotropy index revealed that wheat exhibits changes in reflectance anisotropy with phenological development and with spectral bands.
Źródło:: International Agrophysics; 2017, 31, 2; 203-218
0236-8722
Pojawia się w:: International Agrophysics
Dostawca treści:: Biblioteka Nauki

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