Dr Rohit Sharma
Scientist, Department of Processing and Food Engineering, Punjab Agricultural University, Ludhiana-141004
Sunday, 16 February 2025
Thursday, 3 December 2020
Thursday, 17 September 2020
EXPERT SYSTEM ON RICE
⟴ The “Image based Rice Expert System” developed is an integration of image and textual data.
⟴ The system can be used by extension personnel, researchers and farmers to identify rice diseases, insect pest and nutritional disorders and enable their management.
⟴ User can easily identify the problems on the bases of pictures of symptoms and text description of problem.
⟴ The user friendly software developed using window environment, thus provides enough facilities to identify the problem and to suggest the remedy conveniently.
⟴ The local Punjabi language is incorporated in the system for its wider usability.
The Program has following modules:
1) Identification and Management of Rice Insect pests, Diseases and nutritional disorders
2) Identification of Friendly insects/Spiders, so that farmers should not spray on friendly insects or spiders, thereby saving in costs.
3) How to use Leaf Colour Chart
4) How to use Tensiometer to save Irrigation Water
5) Post Harvest Processing of Rice
Friday, 31 May 2019
Monday, 4 February 2019
Monday, 27 August 2018
The
Rational equation is the simplest method to determine peak discharge from
drainage basin runoff.
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Rational
Equation: Q=ciA
The Rational equation requires the following units: Q = Peak discharge, cubic meter/second c = Rational method runoff coefficient i = Rainfall intensity, mm/hour A = Drainage area, ha |
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The
Rational method runoff coefficient (c) is a function of the landuse, soil
type and drainage basin slope.
Source: Batelaan and Woldeamlak (2007)
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Saturday, 14 July 2018
Very User friendly Program. This program can calculate all the solar earth angles by taking some input parameters.
Very User friendly Program. This program can calculate all the solar earth angles by taking some input parameters.
Download link
User has to give input parameter as
- n, i.e. number
of days starting from January 1;
- phi, Latitude Angle;
- Solar Time; Gamma,
- Surface Azimuth Angle,
- Reflectivity of ground;
- Turbidity factor of surface.
Output parameters include (19 parameters)
- Declination
Angle,
- Hour Angle,
- Zenith Angle,
- Solar Azimuth Angle,
- Iext (Extra Terrestrial
Radiation),
- In (Normal Irrad in Terrestrial region),
- Incident Angle,
- Flux of
Beam Radiation on horizontal surface(Ihb),
- Flux of Diffuse radiation on
horizontal surface(Id),
- Flux of Beam Radiation on inclined surface (Ib'),
- Amount of diffuse radiation available on inclined surface (Id'),
- Reflected
component of Total solar radiation on inclined surface (IR'),
- Total solar
radiation falling on inclined surface of absorber plate at solar noon (Ii),
- Ratio of apparent width of the horizontal absorber plate intercepted by sunrays
to apparent width of the inclined absorber plate intercepted by sunrays (Wh /
Wi),
- Ratio of total radiation flux on inclined surface to global radiation
flux on horizontal surface (Ii / Igh),
- Ratio of intensity of beam radiation on
horizontal surface to beam radiation flux on normal surface (Ihb / In),
- Ratio
of beam radiation flux on inclined surface to beam radiation flux on normal
surface (Ib' / In),
- Optimum angle of the reflector mirror with vertical for
horizontally placed cooker (λ),
- Optimum angle of the reflector mirror with
horizontal for optimally inclined cooker (ψ).
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