scholarly journals Automatic Monitoring and Controlled Atmosphere System Using Arduino on Tropical Fruit Container Integrated with IoT

Author(s):  
Alam Baheramsyah ◽  
Khitoh Fatahilah
1970 ◽  
Author(s):  
Harold Gorfien ◽  
Abdul R. Rahman ◽  
Thomas J. DiNicola ◽  
Margaret Driver ◽  
Donald E. Westcott

1997 ◽  
Vol 11 (2) ◽  
pp. 123-130
Author(s):  
Lyndall G. Smith ◽  
Peter J. Hofman ◽  
Rodney A. Jordan ◽  
Chaim Lee

Vacuum ◽  
1968 ◽  
Vol 18 (7) ◽  
pp. 418
Author(s):  
Vacuum/Atmosphere Corporation, USA

Author(s):  
Amin Kolahdooz

This work studied the semisolid (SSM) Al-A380 alloy formed by mechanical stirring under the circumstances of controlled atmosphere with argon gas. The A380 aluminium alloy produced due to this process can be used instead of the forging processes or die casting with better mechanical properties. In this paper, first, the effects of the solid fraction, the stirring speed and the mold temperature on the hardness and microstructure are studied using a mechanical stirrer. Then some tests such as XRD and ultrasonic test are done to investigate the effect of using the controlled atmosphere system. By optimizing the forming parameters and with the breaking of primary a phase dendrites, the microstructure will be changed to the spherical form, therefore the mechanical properties will be improved. The results showed that the hardness of the billets has increased significantly due to the uniform grains distribution at the condition of 580 ℃ stirring temperature, 300 r/min stirring speed and mold temperature of 100 ℃. Also, the process properly optimized with the controlled atmosphere. In this condition, the results illustrated that the mechanical properties of the alloy increased around 30%.


Author(s):  
S.B. Kudryashev ◽  
◽  
V.A. Naumenko ◽  
K.V. Lamanova ◽  
R.D. Belashov ◽  
...  

The article presents a system for automatic monitoring of plant conditions, which is based on a specially developed method for processing photographs in the infrared spectrum. The paper substantiates the choice of a quadrocopter as a transport platform, which provides mobility to the system.


2014 ◽  
Vol 2 (2) ◽  
pp. 67-71 ◽  
Author(s):  
Abdoul Amir Rahnama ◽  
Esmaeil Rahkhodaei

Date palm is unisexual, being either male or female. Male and female flowers grow on buds called Spathe, which opens naturally when fully mature. It is easy to identify the male and female flowers. Under the method of manual pollination, pollen from a male flower is smeared over female flowers. The pollen variety and pollination time have important effects on date palm fruit set, yield and quality. This experiment was carried out to study the effect of date pollinizer variety and pollination time on fruit set, growth and development of Medjhol date palm variety, in date palm garden of date palm and tropical fruit research institute of Iran during three years from 2009 to 2011. The trail was randomized complete block design in factorial manner with three pollen variety as Ghaname, Vardy, and Samesmave, two pollination time as 1-3 days before or after spathe opening and four replication. The results showed that the Vardy pollen had significant effects and increased the fertility percent and fruit yield, rather than two other pollen varieties. The pollen variety had no significant effects on fruit quality as total sugar, acidity, and bricx. The pollination time before spathe opening significantly increased fertility percent, decreased fruit weight and date palm yield. Finally the pollen variety and pollination time interaction effects showed that, application of Vardy pollen from 1-3 days after spathe opening with the most production date palm yield, equal 19.9 kilogram per any date palm trees, so this treatment is the best and are recommended.


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