The identification and mapping of crops are important for estimating potential harvest as well agricultural field management. Optical remote sensing is one the most attractive options because it offers vegetation indices some data have been distributed free charge. Especially, Sentinel-2A, which equipped with a multispectral sensor (MSI) blue, green, red, near-infrared-1 bands at 10 m; red edge 1 to 3, near-infrared-2, shortwave infrared 2 20 3 atmospheric (band 1, band 9, 10) 60 m, offer...

Sentinel-1A C-SAR and Sentinel-2A MultiSpectral Instrument (MSI) provide data applicable to the remote identification of crop type. In this study, six types (beans, beetroot, grass, maize, potato, winter wheat) were identified using five images one MSI image acquired during 2016 growing season. To assess potential for accurate classification with existing supervised learning models, four different approaches namely kernel-based extreme machine (KELM), multilayer feedforward neural networks,...

Optical remote sensing is one of the most attractive options for generating crop cover maps because it enables computation vegetation indices, which are useful assessing condition vegetation. The Sentinel-2A Multispectral Instrument (MSI), a multispectral sensor with 13 bands covering visible, near infrared and short-wave (SWIR) wavelength regions, offers vast number indices. Spectral combinations spectral measurements at different wavelengths, have been used in previous studies they...

AbstractThe classification maps are required for the management and estimation of agricultural disaster compensation; however, those techniques have yet to be established. Some supervised learning models may allow accurate classification. In this study, Random Forest (RF) classifier regression tree (CART) were applied evaluate potential multi-temporal TerraSAR-X dual-polarimetric data, on StripMap mode, crop type. Furthermore, comparisons two algorithms polarizations carried out. study area,...

This article describes the comparison of three different classification algorithms for mapping crops in Hokkaido, Japan, using TerraSAR-X data. In study area, beans, beets, grasslands, maize, potatoes, and winter wheat were cultivated. Although maps are required both management estimation agricultural disaster compensation, those techniques have yet to be established. Some supervised learning models may allow accurate classification. Therefore, comparisons among regression tree (CART),...

The problem of thermal conduction during the crystal growth process is solved computationally using a model simplified to involve essential features Czochralski system. In Laplace equation solved, while in melt modified taking account fluid motion and Navier-Stokes equations with bouyant force being considered are simultaneously. solid-liquid interface shapes calculated as function rotation rate. Without rotation, shape concave it becomes more rate increases. This dependence on explained by...

Crop classification maps are useful for estimating amounts of crops harvested, which could help address challenges in food security. Remote-sensing techniques tools generating crop maps. Optical remote sensing is one the most attractive options because it offers vegetation indices (VIs) with frequent revisits and has adequate spatial spectral resolution some data been distributed free charge. However, sufficient consideration not given to potential VIs calculated from Landsat 8 Operational...

This study continued the in vitro screening of locally available ruminant feedstuffs for optimum nutrient composition and low methane (CH 4 ) production Ethiopia. The best bet feeds from study, hereafter called test feeds, include dried leaves Acacia nilotica , Ziziphus spina-christi brewery spent grains (BSG). involves four treatments: Control, Acacia, BSG, Ziziphus; each treatment provided an equivalent crude protein estimated enteric CH emissions using Modeling a Laser detector (LMD)....

A mixed nonlinear Schrödinger equation which has a usual cubic term and derivative is exactly solved by the inverse scattering method under nonvanishing boundary condition. We obtain soliton solution generally pulsates. But it becomes stationary algebraic in some special cases. peculiar structure of spiky modulation also shown.

By using the inverse scattering method soliton solutions are examined analytically and numerically under both (I) vanishing (II) nonvanishing conditions. The two-soliton solution for shows that two solitons collide as if they were particles. For case there appears a "paired soliton" which generally pulsates with period ("pulsative soliton") but degenerates to stationary one ("pure in limited case. There exist types of pure solitons, envelope bright dark between some cases collisions...

The lean combustion of an SI engine has been recognized as one the most promising methods for further improvement fuel economy. There been, however, difficulty in extending misfire limit enough to realize no-x emission levels below mandatory level and still keep satisfactory driveability. A simulation study carried out search possibility getting better economy under constraints To optimum calibration, extended by introduction (1) high swirl chamber turbulence through use a helical port with...

Flow pattern of melt and temperature profile are calculated numerically in a crucible which crystal is grown by Czochralski method. The calculation carried out for cases both the rotated compared with case only (Kobayashi Arizumi: Japan. J. appl. Phys. 9 (1970) 361). flow behaves differently depending on relative sense rotations crucible. With same rotation, induced rotation extends to bottom crucible, interface shape becomes more concave towards as rate increases. counter makes similar that...

The solid-liquid interface shapes are obtained by solving the Laplace's equation computationally assuming a model adequately simplified. conditions which indispensable for crystal growth mentioned in detail; shape is given as function of convective heat loss, length, radius, and crucible temperature germanium. There exists simple relation between rate deviation from flat we can determine realizing nearly interface. Our results qualitatively agreement with experimental data hitherto obtained....