Adrian Knapczyk

Adrian Knapczyk
University of Agriculture in Krakow | UR · Department of Mechanical Engineering and Agrophysics

MSc Eng.

About

36
Publications
13,395
Reads
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235
Citations
Citations since 2016
36 Research Items
234 Citations
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20162017201820192020202120220204060
20162017201820192020202120220204060
20162017201820192020202120220204060

Publications

Publications (36)
Article
Full-text available
Flowers of red clover (Trifolium pratense), sweet violet (Viola odorata) and elderflowers (Sambucus nigra) were dried by means of air drying at 30 °C and 50 °C and by freeze drying. The content of polyphenols was determined using the Folin–Ciocalteu reagent, while anthocyanins were quantified by the pH differential method. Antioxidant activities of...
Article
Full-text available
One of the aspects of biological activity of vanadium is its influence on carbohydrate metabolism. For more than 30 years, various vanadium complexes have been tested as antidiabetic agents. This study researched organic vanadium complexes with bipyridinium ligands and their influences on metabolic rate, as well as on the antioxidant activity of ad...
Book
Full-text available
The monograph covers current research in the field of energy potential of biomass. The issues of world scientific and research trends in the field of biomass energy and the current state of bioenergy in the EU and Ukraine in the context of opportunities to increase the volume and improve the properties of raw materials for renewable energy based on...
Article
Full-text available
Miscanthus is resistant to dry, frosty winters in Poland and most European Union countries. Miscanthus gives higher yields compared to native species. Farmers can produce Miscanthus pellets after drying it for their own heating purposes. From the third year, the most efficient plant development begins, resulting in a yield of 25-30 tons of dry matt...
Article
Full-text available
Renewable energy sources (RES) represent an increasing share of global energy production. Biomass has the highest potential of all RES. Biomass is used to produce solid biofuels, liquid biofuels, and gaseous biofuels. One of the main directions of research on solid biofuels is to optimize the agglomeration process. The main factors determining the...
Article
Full-text available
The aim of the paper was to summarize and discuss current research trends in biomass thermal treatment (torrefaction process). Quantitative analyses were carried out, in which the main countries, research units and scientists were indicated. The analysis showed a clear upward trend in number of publications after 2010. Most scientists on selected t...
Article
Full-text available
The influence of harvest period and drying method of Salvia officinalis L. leaves on the content of essential oils, polyphenols and antioxidant properties was investigated. Sage leaves were collected twice during plant blossoming (in June and July) and dried traditionally in natural conditions and at 35 °C. Antioxidant activity was assayed in metha...
Article
Full-text available
In Poland the use of solid biomass obtained from intentional plantations of energy plants is increasing. This biomass is most often processed into solid fuels. There are growing indications that renewable energy sources, in particular biomass production, will continue to develop, so the better we know the raw material, the more effectively we will...
Article
Full-text available
For biomass compaction, it is important to determine all aspects of the process that will affect the quality of pellets and briquettes. The low bulk density of biomass leads to many problems in transportation and storage, necessitating the use of a compaction process to ensure a solid density of at least 1000 kg·m−3 and bulk density of at least 600...
Article
Full-text available
The biomass is regarded as a part of renewable energy sources (RES), which can satisfy energy demands. Biomass obtained from plantations is characterized by low bulk density, which increases transport and storage costs. Briquetting is a technology that relies on pressing biomass with the aim of obtaining a denser product (briquettes). In the produc...
Article
Full-text available
Nowadays it is necessary to define actual global research trends in disciplines in order to determine the major research topics, discoveries and global scientific networks. The goal of the work was to determine the main topics and research trends in agricultural engineering. For this caser he method of modified bibliometric analysis was applied. Su...
Article
Full-text available
The work includes a bibliometric analysis of the main topics and research trends within the discipline of Mechanical Engineering. On the basis of analysis of data from the Scopus database, the Applied Mechanics Reviews magazine was chosen, which is the only one conducting scientific activity exclusively in the field of Mechanical Engineering. In th...
Conference Paper
Full-text available
Solid biofuels can be defined as processed and unprocessed biomass. By definition it can be divided into: natural fuels (as obtained) and synthetic fuels (after mechanical and chemical treatment). Raw materials for the production of solid biofuels may include: wood, stalk plants, peat, sewage sludge and grains of cereals. These raw materials can be...
Article
Full-text available
Modern decision support systems have many applications, including assistance in scheduling tasks. Biosystems engineering combines engineering sciences and physical sciences in order to understand and improve biological systems in agriculture, food production, environment, etc. The work reviews the decision support systems in the aspect of schedulin...
Article
Full-text available
Methods that use robust optimization are aimed at finding robustness to decision uncertainty. Uncertainty may affect the input parameters (problem) and the final solution. Robust optimization is applicable in many areas, such as: operational research, IT, energy, production engineering and others. The aim of the work was to indicate the main method...
Conference Paper
Full-text available
Bibliometric analysis of publications allows to quantify researchers' interests in this specific topic. This method enables the identification of key authors, who are publishing in this area. It is necessary to define research trends, which have developed in this specific field. It enables to determinate the main research topics, discoveries and co...
Conference Paper
Full-text available
The purpose of this work was to collate selected agriculture universities in Europe on the basis of academic output. This analysis was performed with the data from the Web of Science Core Collection database for the period 2009-2016. Selected universities are: Wageningen University & Research (NLD – WUR), Swedish University of Agricultural Sciences...
Conference Paper
Full-text available
The purpose of the work was to develop a concept of an algorithm which supports the process of scheduling production tasks. The designed algorithm performs a task queue creation process in six steps: selecting a schedule type, declaring a queue length, selecting orders for queue development, loading data, automatic job analysis, and queue and Gantt...
Book
Full-text available
The tutorial consists of two interrelated parts. The first of them gives an idea of modern structural materials and their main properties, and the second one contains information necessary for the practical manufacture of parts and assembly operations. Part One "Materials Science", consists of 8 sections: Section 1. "Structure, properties and metho...
Chapter
Full-text available
W pracy dokonano analizy możliwości zastosowania metod szeregowania zadań w rolnictwie. Zrealizowano dwa zadania badawcze: Określono stan badań naukowych dotyczących metod szeregowania zadań w zakresie dyscypliny rolnictwo, na podstawie analizy bibliograficznej. Przeanalizowano problemy decyzyjne w produkcji rolniczej w Polsce w aspekcie możliwości...
Article
Development trends (Research Trends) in scientific research on the methods of Multiple Criteria Decision Making (MCDM) and Multiple Criteria Decision Analysis (MCDA) in agriculture are analyzed. Established bibliometric techniques are applied. MCDA/MCDM methods are being very intensively developed in recent years, as evidenced by the number of scie...
Article
Full-text available
The objective of the paper was to carry out a bibliometric quantitative analysis of publications concerning the application of artificial neural networks in the research area - agriculture and a bibliometric quantitative analysis and subject analysis with regard to agricultural engineering. A number of scientific publications devoted to the ANN fou...
Article
Full-text available
The article presents the procedure of determination of a structural form of an agricultural machine which encompasses methodological aspects of design related to the division of the basic objective function into member functions, multi-variant solutions and synthesis of astructural form (a virtual prototype of an agricultural machine). The suggeste...
Article
Full-text available
The objective of the research was to create a model which defines the relation between a fundamental contact area of a seed and the pressure force, water content in a seed and its geometrical dimensions with application of artificial neural networks (SSN). Computer program Statistica Neural Networks v. 6.0. was used for formation of a neural model....

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Projects

Projects (3)
Project
The aim of the project is to indicate the main research topics in selected areas / scientific issues with the use of bibliometric tools and techniques.
Project
1) Analysis of decision problems in small and medium-sized enterprises (agri-food industry, IT industry and others). 2) Analysis of methods for scheduling tasks in terms of their applicability in biosystems engineering. 3) Creation of the concept of using priority rules to support the task scheduling process.