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You searched for: Journal Agricultural Engineering Remove constraint Journal: Agricultural Engineering Publication Year 2018 Remove constraint Publication Year: 2018 Source 2018 v.22 no.4 Remove constraint Source: 2018 v.22 no.4
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1. Application of FKM Calculation Algorithm for Determination of Degree of Utilization of A Milk Tank Wall

Author:
Lejman, Krzysztof; Fedorczuk, Rafał
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 33-41
ISSN:
2449-5999
Subject:
algorithms; aluminum; cast iron; guidelines; mechanical engineering; safety factor; steel
Abstract:
... The objective of the paper was to determine the level of circumferential stress in a wall of an open milk tank and to assess the tank wall degree of utilization according to the FKM Guideline calculation algorithm − Analytical Strength Assessment of Components, Made of Steel Cast Iron and Aluminium Materials in Mechanical Engineering. (German: FKM – Forschungskuratorium für Maschinenbau). The stre ...
DOI:
10.1515/agriceng-2018-0034

2. Assessment of Dimensions in Order to Aid Classification of European Red Mite and Two-Spotted Spider Mite by Means of Digital Imaging of Infected Leaves

Author:
Konopacki, Paweł J.; Warabieda, Wojciech
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 15-24
ISSN:
2449-5999
Subject:
Malus domestica; Panonychus ulmi; Tetranychus urticae; adults; apples; computer software; digital images; females; image analysis; leaves; mites; orchards; prediction; probability
Abstract:
... The methods currently used to assess orchard infestation are time-consuming and do not take into account non-adult forms of mites, due to their small size. Advance in digital imaging technology, however, has resulted in the discovery of a more viable method to enable a fast and reliable assessment of orchard infestation. Digital images of infected apple leaves were made and examined for the presen ...
DOI:
10.1515/agriceng-2018-0032

3. Effect of Sonication on The Mechanical Properties of Organic Mixed Grain Bread

Author:
Batia-Strynkowska, Marta; Wesołowski, Andrzej; Kaliniewicz, Zdzisław
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 5-13
ISSN:
2449-5999
Subject:
baking; breads; chewiness; dough; mechanical properties; organic foods; sonication
Abstract:
... The aim of this study was to determine the effect of ultrasound waves on mechanical properties of organic bread. Mixed grain bread baked at a local bakery according to its original recipe was the material subjected to testing. Prior to baking, the dough was sonicated at frequencies of 20 kHz and 40 kHz for 3 minutes, and at a frequency of 100 kHz for 3 minutes and 6 minutes. The mechanical propert ...
DOI:
10.1515/agriceng-2018-0031

4. Effect of the Fertilizer Application Method on Soil Abundance in Available Sulfur

Author:
Tabak, Monika; Filipek-Mazur, Barbara
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 81-88
ISSN:
2449-5999
Subject:
fertilizer application; phosphorus; rock phosphate; soil pH; soil sampling; soil texture; sulfur; wastes
Abstract:
... Efficient increase in the content of available forms of elements in soil depends not only on their total content introduced to soil material, but also on the technology of its application. Technology consists of techniques and date of application as well as agronomic practices aimed at maintaining proper conditions for element transformations. The method of application of waste elemental sulfur an ...
DOI:
10.1515/agriceng-2018-0039

5. Evaluation of Flat Fan Nozzles Operating Parameters Under Conditions of Accelerated Boundary and Destructive Wear

Author:
Parafiniuk, Stanisław; Milanowski, Marek; Krawczuk, Anna; Sawa, Józef; Subr, Alaa Kamel
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 61-70
ISSN:
2449-5999
Subject:
fan nozzles; pesticide application; pesticide application equipment; sprayers
Abstract:
... Two tests were carried out to measure the standard flat fan nozzles wear during a specific period of an accelerated wear procedure. The first test aimed at getting 10% increase in the flow rate compared to the nominal flow rate, which is the threshold to replace the nozzles according to the nozzles testing standards. The second test was to wear the nozzles intensively (100 hours of accelerated wea ...
DOI:
10.1515/agriceng-2018-0037

6. Level and Structure of Inputs in Specialist Farms

Author:
Kuboń, Maciej
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 25-32
ISSN:
2449-5999
Subject:
Brassica; Cucurbita; Solanaceae; energy; farms; humans; labor; onions; organic foods; Poland
Abstract:
... The objective of the paper is to determine the size of human and objectified labour in selected specialist vegetable farms. The paper covered studies carried out in the area of southern Poland in 50 organic vegetable farms. Based on the detailed studies, the size and structure of work, and energy inputs used in the production process were determined. The highest inputs of labour per a unit of the ...
DOI:
10.1515/agriceng-2018-0033

7. Performance Evaluation of African Breadfruit (Treculia Africana) Seed Dehuller

Author:
Obi, Okey Francis; Akubuo, Clement O.
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 51-60
ISSN:
2449-5999
Subject:
Treculia africana; breadfruits; hulling; parboiling; regression analysis; seeds
Abstract:
... This paper reports the effect of the parboiling time on dehulled kernel out-turns (DKO) of African breadfruit seeds, and the most recent effort to upgrade an existing dehuller and its performance. Two common and readily available varieties – Treculia var. africana and var. inverse were used in the study. The seeds were parboiled for 0 (control), 2, 5, 8, 11 and 14 minutes and then dehulled. The re ...
DOI:
10.1515/agriceng-2018-0036

8. Prospects for Production and Consumption of Second Generation Biofuels in Ukraine

Author:
Romaniuk, Waclaw; Zheliezna, Tetyana; Drahniev, Semen; Bashtovyi, Anatoliy; Sobczuk, Henryk; Marczuk, Andrzej; Titova, Liudmyla; Rogovskii, Ivan; Borek, Kinga
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 71-79
ISSN:
2449-5999
Subject:
bioethanol; biogas; cattle manure; energy; feasibility studies; fermentation; methane; slurries; Ukraine
Abstract:
... The article analyzes the current state of production of second generation biofuels in the world and evaluates the possibility of launching such production in Ukraine. The work is topical due to the fact that liquid biofuels can replace a certain share of motor fuels consumed in Ukraine, thus contributing to the strengthening of the country’s energy independence. The purpose of the study is to asse ...
DOI:
10.1515/agriceng-2018-0038

9. Selected Properties of Multilayer Films Applied for Vacuum and Modified Atmosphere Packaging Systems

Author:
Wójtowicz, Agnieszka
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 89-98
ISSN:
2449-5999
Subject:
food packaging; jaws; mechanical damage; modified atmosphere packaging; packaging films; tensile strength; vacuum packaging
Abstract:
... The aim of the research was to determine the selected properties of packaging materials applicable for vacuum and modified atmosphere packaging. Six samples of multilayer films with different composition were tested to evaluate the thickness, basic weight, density and the mechanical properties in elongation and puncture tests. Zwick/Roell apparatus equipped with elongation jaws and a puncture pin ...
DOI:
10.1515/agriceng-2018-0040

10. The Effect of the Malt Grinding Degree on the pH Value and Extract Content in Beer Mash

Author:
Natoniewski, Marcin; Rydzak, Leszek; Wyciszkiewicz, Agata; Guz, Tomasz
Source:
Agricultural Engineering 2018 v.22 no.4 pp. 43-49
ISSN:
2449-5999
Subject:
beers; brewing industry; dyes; enzymes; factories; flavor; food production; grinding; ingredients; lipids; malt extract; mash; odors; pH; particle size; proteins; restaurants; sugars; vitamins
Abstract:
... In recent years, a dynamic development of brewing has been observed. Increasingly, production of malt and beer takes place even in smaller industrial factories, breweries restaurants or at home. Extraction is a process applied in a variety of industries, including food production, as a way of extracting specific ingredients from their mixtures. As a result of this process, not only sugars, protein ...
DOI:
10.1515/agriceng-2018-0035