scholarly journals Aquaponics for Food Production in Different Growing Beds

2019 ◽  
Vol 8 (3) ◽  
pp. 6103-6106

Soil is the most preferred medium for growth of vegetation worldwide.An experimental investigation has been carried out to study the efficiency of a system to grow plants without the presence of soil called aquaponics .Aquaponics is the process of growing plants and fish and it is combination of hydroponics combined with aquaculture. Water from an aquaculture which is filled with nutrients is transferred to hydroponic system which is used by the plants as nutrient supplements and then the water is recycled back to the fish tank. Ammonia in fish waste will be broken down by bacteria which will be converted into nitrites and then to nitrates. Nitrates thus produced can be used as a natural fertilizer to grow plants.Two different types of aqua phonic grow mediumsuch as clay pebbles and coconut coir pith experimented and compared for two different crops usingaquaphonic technique.

2016 ◽  
Vol 7 (3) ◽  
Author(s):  
Sheel Ratan ◽  
Indu Singh ◽  
Joy Sarkar ◽  
Naik RM
Keyword(s):  

2018 ◽  
Vol 10 (2) ◽  
pp. 234
Author(s):  
Cassio G. Freire ◽  
João P. P. Gardin ◽  
Cesar M. Baratto ◽  
Renato L. Vieira ◽  
Simone S. Werner

Red Araçá’s (Psidium cattleianum) micropropagation processes have shown enormous potential both in terms of research and as a sustainable native resource to be used in the areas of food production, ecology, and pharmacology. Currently, however, despite that potential, research efforts involving this myrtaceae, native to the Brazilian Atlantic Forest, have been scarce. With that in mind, this study set out to establish micropropagation techniques that would allow the development of a feasible protocol to be used with Red Araçá, achieving its mircropropagation from in vitro germinated seeds. Different types of explants were tested for in vitro establishment. For the multiplication of nodal segments, different concentrations of BAP and IAA combinations were tested in an MS medium. Using the same medium, different concentrations of ampicillin were applied in order to determine its influence on the decontamination of the apical segments. The BAP and IAA combinations were also used to test their effects on the in vitro explants’ development and rooting. During pre-acclimatization, survival of in vitro rooted plants was tested in a nebulizer chamber, using a commercial substrate and that same substrate mixed with washed sand (1:1). In essence, it was indeed possible to develop a complete protocol for the micropropagation of the Red Araçá from seedlings obtained by in vitro germination. The in vitro introduction of the Red Araçá was rather efficient, independently of the type of explants used. As the BAP and IAA concentrations increased, so did the in vitro seedlings’ development (7 leaves explant-1) and rooting (67%). Additionally, the in vitro rooted plants exhibited a high rate of survival (80%) in the pre-acclimatization phase, independently of the substrate used.


Author(s):  
Sudheer Bayanker ◽  
Joshua D. Summers ◽  
Anand K. Gramopadhye

This paper presents an experimental investigation into input suitability for human-computer interaction during computer aided design operations. Specifically, three types of operations, synthesis, interrogation, and modification, are examined with respect to three different types of user interfaces, mouse, direct tablet, and indirect tablet. The study, using undergraduate student participants in an introductory engineering graphics course, demonstrates that the mouse performs the highest across the dimensions of completion time and number of errors. However, the direct tablet, using a pen like device directly on the visualization screen, shows promise.


Gesture ◽  
2002 ◽  
Vol 1 (2) ◽  
pp. 129-149 ◽  
Author(s):  
Geoffrey Beattie ◽  
Heather Shovelton

Respondents, who had either seen or not seen a sample of the iconic gestures that encoders produce when narrating a story, answered questions about the original story and it was found that the overall accuracy score for respondents who saw the iconic gestures in addition to hearing the speech was 56.8% compared to 48.6% for speech only. This was a highly reliable effect and suggests that iconic gestures are indeed communicative. Character viewpoint gestures were also significantly more communicative than observer viewpoint gestures particularly about the semantic feature relative position, but the observer viewpoint gestures were effective at communicating information, particularly about the semantic features speed and shape. There were no significant correlations between the amount of information that gestures added to speech and the amount they conveyed in its absence, which suggests that the relationship between speech and gesture is not fixed but variable. The implications of this research for our fundamental conception of iconic gestures are considered.


2015 ◽  
Vol 773-774 ◽  
pp. 465-469
Author(s):  
Nazrul Atan ◽  
Azizul Mokhtar ◽  
Najib Rahman ◽  
Amir Khalid

The use of biopetrol fuel as alternative fuels in gasoline engine has been around for many years and Ethanol-petrol has the potential to be used as alternative fuel that can reduce the total CO2emission from internal petrol engine. However, the changes of bio-petrol is a very complex and need further understanding for researchers due to the relevance of the increase in the petroleum price and the future environmental regulation. This review paper focuses to ascertain a new approach in potential on ethanol-petrol blends operating with a petrol engine especially the effects of ethanol gas petrol blending ratio and variant types of ethanol on performance and emissions of petrol engine. It is shown that the variant in biopetrol blending ratio and engine operational condition are reduced engine-out emissions and increased efficiency. This paper presents on a review on three different types of ethanol like sugar cane, wheat and corn with various blended rates. Investigation framework study on how to complete the research is also included in this paper.Keywords: biopetrol, petrol engine, performance, emissions, biopetrol fuel properties


Author(s):  
LUCIANA HELENA MAIA ◽  
ALEXANDRE PORTE ◽  
VALÉRIA FRANÇA DE SOUZA

Apresenta breve revisão bibliográfica sobre filmes e revestimentos comestíveis, abordando sua produção e os diferentes tipos de filmes e revestimentos de proteína, lipídios e amidos. Discute as propriedades dos filmes como barreiras contra a transmissão de oxigênio e vapor de água. Conclui que o aperfeiçoamento e adaptação da estrutura físicoquímica e métodos de aplicação dos filmes e revestimentos às características composicionais dos produtos propiciará seu crescimento para outros segmentos da produção de alimentos. Abstract A brief bibliography review about edible films and coatings is presented, showing the production and different types of protein, lipid and starch films and coatings. Discusses the films barrier properties against oxygen transmission and water steam. Concludes that the improvement and adaptation of the physicalchemical structure and application methods of films and coatings to the compositional characteristics of products, will provide an increase to other segments of food production.


2005 ◽  
Vol 14 (4) ◽  
pp. 485-497 ◽  
Author(s):  
Alexander Mangold ◽  
Robert Wagner ◽  
Harald Saathoff ◽  
Ulrich Schurath ◽  
Carsten Giesemann ◽  
...  

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