scholarly journals Measurement of volume of macaw palm fruit using traditional and the digital Moiré techniques

2016 ◽  
Vol 20 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Anderson G. Costa ◽  
Elisângela Ribeiro ◽  
Roberto A. Braga ◽  
Francisco A. C. Pinto
Keyword(s):  
Low Cost ◽  
Maturation Stage ◽  
Maturity Stage ◽  
Displacement Method ◽  
Water Displacement ◽  
Palm Fruit ◽  
Macaw Palm ◽  
Moiré Techniques ◽  
Palm Fruits ◽  
Digital Moiré

ABSTRACT The macaw palm crop has been studied because of its bioenergy potential due to the high oil yield, which is linked to fruit maturity stage. Digital images have been adopted as a contactless way to obtain information about fruit surface area and volume, acting as a sensor for quality control and the classification of fruits, based on physical aspects during the maturation stage. The aim of this study was to estimate the volume of macaw palm fruits from digital models obtained by the Moiré technique using only one camera, associated with digital image-processing tools to unwarp the images, allowing the comparison with conventional methods. The volumes obtained by the Moiré technique were compared with those obtained by water displacement method (WDM) and millet-seed displacement method (SDM). The results show that the volumes measured by the Moiré technique exhibited a mean error of 13.54% compared with the SDM, and 11.09% when compared to WDM, which indicates that the digital Moiré technique is a robust, low-cost tool to measure the volume of macaw palm fruits.

ZIF-67 derived cobalt-based catalysts for hydrogen generation from the hydrolysis of alkaline sodium borohydride solution

2019 ◽  
Vol 12 (04) ◽  
pp. 1950050 ◽  
Author(s):  
Lei Wei ◽  
Hongyan Liu ◽  
Qian Wang ◽  
Wenjuan Li ◽  
Lufeng Peng
Keyword(s):  
Catalytic Activity ◽  
Sodium Borohydride ◽  
Pyrolysis Temperature ◽  
Hydrogen Generation ◽  
Low Cost ◽  
Displacement Method ◽  
Water Displacement ◽  
Catalyst Composition ◽  
And Performance ◽  
Hydrolysis Of

Cobalt-based catalysts are highly efficient and low-cost for sodium borohydride (NaBH[Formula: see text] hydrolysis to generate hydrogen. Co3O4 and carbon-supported metal Co (i.e., Co/C) catalysts were prepared by means of ZIF-67 pyrolysis. Effects of pyrolysis temperature and atmosphere on catalyst composition and performance were mainly investigated. For material analyses, a series of characterizations were carried out including FE-SEM, TEM, XRD, BET, TGA and ICP-AES. Conventional water-displacement method was employed to evaluate the catalyst performance toward NaBH4 hydrolysis. Experimental results indicated that catalytic activity of the Co3O4 was much higher than that of Co/C, and the reasons were discussed in detail.

scholarly journals Relationship between biospeckle laser technique and firmness of Acrocomia aculeata fruits

2017 ◽  
Vol 21 (1) ◽  
pp. 68-73 ◽  
Author(s):  
Anderson G. Costa ◽  
Francisco A. C. Pinto ◽  
Roberto A. Braga ◽  
Sergio Y. Motoike ◽  
Luis M. N. Gracia
Keyword(s):  
Biological Activity ◽  
Maturation Stage ◽  
Fruit Pulp ◽  
Laser Technique ◽  
Palm Fruit ◽  
Optical Instruments ◽  
Non Invasive ◽  
Macaw Palm ◽  
Acrocomia Aculeata ◽  
The Moment

ABSTRACT Knowing the maturation of the Acrocomia aculeata (macaw palm) fruit is decisive for harvest to be performed when the fruit has a higher content and quality of oil. There are different approaches to monitor maturation and they can be classified as destructive and non-destructive. Variables obtained by optical instruments have been used to determine maturation stage. The present study evaluated the relationship between the biological activity measured by the optical technique of biospeckle laser and firmness, measured in the Acrocomia aculeata fruit pulp between the 41st and 61st week after flowering. The biological activity was quantified by biospeckle images, while the fruit pulp firmness was determined by digital penetrometer. Correlations between variables were evaluated during maturation and in the senescence of fruits. According to the results, significant correlation between biological activity and firmness was found for both evaluated conditions, demonstrating that biospeckle laser can be an effective non-invasive indicator of Acrocomia aculeate fruit maturation assisting in the determination of the moment of harvest.

Modal properties of macaw palm fruit-rachilla system: An approach by the stochastic finite element method (SFEM)

2021 ◽  
Vol 184 ◽  
pp. 106099
Author(s):  
Fábio Lúcio Santos ◽  
Francisco Scinocca ◽  
Deisenara de Siqueira Marques ◽  
Nara Silveira Velloso ◽  
Flora Maria de Melo Villar
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Stochastic Finite Element Method ◽  
Stochastic Finite Element ◽  
Palm Fruit ◽  
Modal Properties ◽  
Macaw Palm ◽  
Element Method

scholarly journals The grades and freshness assessment of eggs based on density detection using machine vision and weighing sensor

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Supakorn Harnsoongnoen ◽  
Nuananong Jaroensuk
Keyword(s):  
Machine Vision ◽  
Vision System ◽  
Low Cost ◽  
Measuring System ◽  
Coefficient Of Determination ◽  
Water Displacement ◽  
Non Invasive ◽  
Future Potential ◽  
Non Destructive ◽  
Egg Freshness

AbstractThe water displacement and flotation are two of the most accurate and rapid methods for grading and assessing freshness of agricultural products based on density determination. However, these techniques are still not suitable for use in agricultural inspections of products such as eggs that absorb water which can be considered intrusive or destructive and can affect the result of measurements. Here we present a novel proposal for a method of non-destructive, non-invasive, low cost, simple and real—time monitoring of the grading and freshness assessment of eggs based on density detection using machine vision and a weighing sensor. This is the first proposal that divides egg freshness into intervals through density measurements. The machine vision system was developed for the measurement of external physical characteristics (length and breadth) of eggs for evaluating their volume. The weighing system was developed for the measurement of the weight of the egg. Egg weight and volume were used to calculate density for grading and egg freshness assessment. The proposed system could measure the weight, volume and density with an accuracy of 99.88%, 98.26% and 99.02%, respectively. The results showed that the weight and freshness of eggs stored at room temperature decreased with storage time. The relationship between density and percentage of freshness was linear for the all sizes of eggs, the coefficient of determination (R2) of 0.9982, 0.9999, 0.9996, 0.9996 and 0.9994 for classified egg size classified 0, 1, 2, 3 and 4, respectively. This study shows that egg freshness can be determined through density without using water to test for water displacement or egg flotation which has future potential as a measuring system important for the poultry industry.

Helium Permeability Measurement of SiC Ceramic Composites for Advanced Reactor Application

2013 ◽  
Author(s):  
Weiqian Zhuo ◽  
Fenglei Niu ◽  
Yungan Zhao ◽  
Houbo Qi ◽  
Zulong Hao ◽  
...  
Keyword(s):  
Low Cost ◽  
Ceramic Composites ◽  
Test System ◽  
Fiber Reinforced ◽  
Water Displacement ◽  
Coated Fiber ◽  
Sic Ceramic ◽  
Carbon Coated ◽  
The Difference ◽  
Reactor Application

Permeability of helium gas of Silicon carbide ceramic composites material, which is one of the most important properties in application of SiC composite for advanced reactors, is studied by using a simple, low-cost test system. The test system can not only qualitatively determine whether the sample is permeable or not, but also quantitatively measure the permeability for the permeable ones by water displacement. The tests are conducted with low pressure in room temperature. The permeability of the SiSiC composite depends on the preparation method. In four flat-plate materials prepared by different processes for the test, the splint based SiSiC and cordierite coated fiber reinforced SiSiC are hermetic, the permeability of uncoated fiber reinforced SiSiC and CVD carbon coated fiber reinforced SiSiC are 0.216cm2/s and 0.109cm2/s, which imply that the permeability is cut in half with the coating. The samples are scanned under SEM to analyze their microscopic structures and verified that the difference of permeability is related to their coatings as well as the pores and cracks.

scholarly journals Biogas Production from Poultry Wastewater using Anaerobic Digester

2019 ◽  
Vol 9 (2S2) ◽  
pp. 110-114
Keyword(s):  
Substrate Concentration ◽  
Biogas Production ◽  
Morphological Structure ◽  
Sem Analysis ◽  
Anaerobic Digester ◽  
Poultry Waste ◽  
Displacement Method ◽  
Water Displacement ◽  
Kinetics Studies ◽  
Poultry Wastewater

Experimental work was carried out for the production of Biogas from poultry waste water. The Poultry waste was collected from farm near Nagercoil at Kanyakumari District. Batch anaerobic digester was designed for 20L capacity. The experiment was carried out for 36 days to monitor the performance. Various parameters like pH, TS, COD have checked for every 24hours. The Production of biogas was measured by water displacement method. The methane content was analyzed by gas chromatography test. Based on the experimental data, kinetics studies have done for various models like Line Weaver-Burk method, Eadie-Hofstee method, Hanes-Woolf method. The Eadie-Hofstee Method has provided better prediction than other method. These results thus indicate that, Eadie-Hofstee Method is best to identify the growth rate, substrate concentration and Limiting Substrate Concentration of the system. The sludge of the poultry wastewater and digester were characterized by SEM analysis. The imaging was done to determine the morphological structure of the sludge and to view the bacterial growth on the surface of the sludge.

scholarly journals PENGARUH SARI KURMA TERHADAP PROLAKTIN DAN PENGELUARAN ASI PADA IBU POSTPARTUM DI BPM PIPIN HERIYANTI YOGYAKARTA TAHUN 2017

2019 ◽  
Vol 6 (3) ◽  
pp. 195-198
Author(s):  
Dwi Yulinda ◽  
Imroatul Azizah
Keyword(s):  
Treatment Group ◽  
Breast Milk ◽  
Breast Feeding ◽  
Date Palm ◽  
Antioxidant Properties ◽  
Control Group ◽  
Feeding Rates ◽  
Palm Fruit ◽  
Exclusive Breast Feeding ◽  
Palm Fruits

Background: Breastfeeding is exceptionally superior, giving mother and infants distinct and subtastial physical, mental, and developmental health advantages. Palm fruit has content of phytonutrients with antioxidant properties and galactagogues to help increase their milk supply in the early postpatum days. The lowest exclusive brest feeding rates in DIY is in the city of Yogyakarta. Exclusive breast feeding improves infant immunity so as to minimize the occurrence of diarrhea, constipation, fever that is caused by some allergic reactions. Objectifive: :This study aimed to analyze the relationship between date palm fruits on postpartum to prolactin and volume of breast milk Method: Research was conducted on maternal postpartum which is divided into two groups. They are the control group; and the treatment group which was given dates palm fruit. Breast milk volume and prolactin was measured at 3 day after labor. The analytical method used is Student T-test. Results: Date Palm fruits increased prolactin and volume of breast milk which was significantly on firstweek breastfeeding increase in the treatment group compared to the control group at p <0.05. Conclusion: Date Palm fruits is one of the alternatives that can be done to improve the success of exclusive breast feeding on postpartum. Key Words: Date palm fruit, postpartum, prolactin and volume of breast milk

scholarly journals Characteristics of 137 macaw palm (Acrocomia aculeata) fruit accessions from Goias, Brazil

2019 ◽  
Vol 10 (1) ◽  
pp. 117-124
Author(s):  
Edésio Fialho dos Reis ◽  
Jefferson Fernando Naves Pinto ◽  
Hildeu Ferreira da Assunção ◽  
Antonio Paulino da Costa Netto ◽  
Danielle Fabiola Pereira da Silva
Keyword(s):  
Group Analysis ◽  
Fruit Weight ◽  
Group Vi ◽  
Group Iii ◽  
Oil Percentage ◽  
Dried Fruit ◽  
Agronomic Potential ◽  
Macaw Palm ◽  
Fruit Oil ◽  
Palm Fruits

Accessions of macaw palm fruits from the State of Goias, Brazil were characterized aiming the identification of groups with similar characteristics and indicate groups with higher agronomic potential, using multivariate tools. Fruit were harvested with completed yellow fruit bunches without whitish scores. The evaluated variables were fruit and almond length, fruit and almond diameters, fruit and dehydrated almond weight, average number of almonds, oil percentage of almond and dried fruit. The genetic diversity of populations was evaluated by Ward’s clustering method and Person´s correlation was obtained to evaluate the relative importance of each characteristic and variance analysis associated with Tukey´s test to verify the group’s effects. The studied population demonstrated great variability. The characteristics that most contributed to the variability were fruit weight and diameter and the almond´s oil percentage. Ward´s group analysis revealed six groups of similarity, being significant for all evaluated characteristics. Group VI stood out for all evaluated characteristics and group III presented the best averages for the almond´s weight and almonds and dried fruit oil percentage.

Performance Evaluation of Palm Waste Screw Press Briquette Moulding Machine

2009 ◽  
Vol 62-64 ◽  
pp. 723-727
Author(s):  
C.O. Ilechie ◽  
G.F. Aibangbee ◽  
S.R. Ogblechi ◽  
P.E. Amiolemhen
Keyword(s):  
Performance Evaluation ◽  
Low Cost ◽  
Low Carbon Steel ◽  
Medium Size ◽  
Screw Thread ◽  
Low Carbon ◽  
Alternative Source ◽  
Palm Fruit ◽  
Moulding Machine ◽  
Palm Waste

An alternative source of heat energy to firewood called, palm waste briquette, has been developed from oil palm fruit process wastes. These wastes (sludge, shell, fibre) are compounded in a volumetric ratio of 1:2:3 and moulded into briquettes. The performance evaluation of a low cost women friendly palm waste briquette moulding machine was carried out. The evaluation showed that the machine designed and fabricated using readily available low carbon steel (mild steel) and employing the vertical screw thread mechanism in its operation, produces three different sizes of briquette (industrial sizes, medium sizes and domestic sizes). It requires only two unskilled operators and has a daily throughput of about 1,300kg briquettes (i.e. 400 pieces-industrial size or 800 pieces-medium size or 1,600 pieces-domestic size) unlike a modified brick moulding machine which has a daily throughput of 120 pieces industrial size

Modeling and simulation of the dynamic behavior of the macaw palm fruit-rachilla system

SIMULATION ◽  
2021 ◽  
pp. 003754972110437
Author(s):  
Mariana Ribeiro Pereira ◽  
Fábio Lúcio Santos ◽  
Nara Silveira Velloso ◽  
Flora Maria de Melo Villar ◽  
Mateus Resende Rodrigues
Keyword(s):  
Dynamic Behavior ◽  
Elasticity Modulus ◽  
Natural Frequencies ◽  
Three Dimensional ◽  
Palm Tree ◽  
Specific Mass ◽  
Palm Fruit ◽  
Modes Of Vibration ◽  
Macaw Palm ◽  
Three Dimensional Models

The macaw palm ( Acrocomia aculeata) is a palm tree native to tropical forests that stand out due to its great potential for oil production. This study was developed with the objective of constructing a high-fidelity model of the macaw palm fruit-rachilla system for the purpose of simulating its dynamic behavior when subjected to mechanical vibrations. The finite element method was used to determine the natural frequencies and modes of vibration of the system. The three-dimensional models of the fruit-rachilla systems were elaborated using CAD3D Fusion 360 software. The modal properties of the fruit-rachilla systems were obtained based on the models developed by varying the elasticity modulus values of the system. The parameters of greatest influence in the estimation of natural frequencies are the elasticity modulus, especially that of the fruit-rachilla joint, and the specific mass. The models that take into account the three-dimensional strains along the rachilla are the least sensitive to variations in the mechanical properties (elasticity modulus and specific mass) and are shown to be more representative of the actual physical system.

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