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Wyświetlanie pozycji 491-510 z 541
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Unconventional Barrel Designs of Single-screw Plasticizing Systems
(Technical University of Košice, 2017-06-20)Extrusion is one of the most important processes in polymer processing technology, just next to injection molding. The first extruder was invented and patented in 1879 by Matthew Gray, which used Archimedes screw in its ... -
Unproductive Entrepreneurship - the Case of the Polish Economy
(2016-11)Unproductive entrepreneurship is not a common theme undertaken by researchers. The author defines the basic concepts of unproductive entrepreneurship and explains the role of cultural and economic differences in transition ... -
Use of Active Substance Depending of the Formulation of Plant Protection Products Applied With Agricultural Sprayers. A Case Study of Winter Wheat in Poland
(Dept. of Mach. Exploit. and Management of Prod. Processes, ULS in Lublin, Poland, 2017-11)The study into the use of an active substance per hectare was performed to examine the matches of plant protection products applied by agricultural sprayers, containing the same active substance but with a different ... -
The use of Decomposition SVD to Approximate a Surface
(Environmental Engineering 10th International Conference, 2017-04-27)This paper describes the procedure of determining the parameters of the approximating function of the surface using a distribution of special value. From a practical point of view, an important issue is to determine the ... -
Use of Drones in Crop Protection
(Dept. of Mach. Exploit. and Management of Prod. Processes, ULS in Lublin, Poland, 2017-11)Modern management in sustainable agriculture requires the fast information about condition of cultivated plants and the quick response to undesirable phenomena such as appearance of pests. The use of drones for spraying ... -
The Use of Moldavian Dragonhead Bagasse Waste in Extruded Products
(Department of Machinery Exploitation and Management of Production Processes, University of Life Sciences in Lublin, Poland, 2017-11)Dracocephalum moldavica L. residues after the cold oil pressing were added as supplementation to corn snacks in the amount of 5-30%. The experiment assessed the effect of addition of the dragonhead bagasse (oilcake) on the ... -
Usefulness of multi-criteria taxonomy in comparative valuation of stocks – the polish experience
(Melandrium, 2015)One of the most relevant issues in comparative valuation of stocks is a selection of so-called “peers”, i.e. companies which may be considered similar to the one which is valued (where similarity means similar profitability, ... -
Usefulness of multi-criteria taxonomy in corporate bankruptcy prediction – the Polish experience
(Melandrium, 2017)One of the essential elements of company’s economic and financial evaluation is ratio analysis. It includes computation and interpretation of multiple bankruptcy risk ratios . When applying accounting ratios in a credit ... -
User-Driven Innovation – the concept and research results
(Publishing House of Białystok University of Technology, 2016)The research problem discussed in the paper is the innovation process, called User-Driven Innovation (UDI). The aim of the study is to determine whether the UDI system is more effective in introducing innovations than the ... -
Utilization of Digestate Obtained From Methane Fermentation of Chicken Manure
(Dept. of Mach. Exploit. and Management of Prod. Processes, ULS in Lublin, Poland, 2017-11)Since 2012, Poland is the European leader in poultry production and one of world’s key exporters of poultry meat. Poultry production is directly related with presence of droppings. Depending on the type of breeding, a ... -
Utilization of Mesh Superposition Technique for Simulation of Single Screw Extruder
(Technical University of Kosice, 2019-09-15)As the technology of polymer extrusion becomes more sophisticated, demand on possibility to accurate simulate extrusion process in full 3D rises significant. The single screw extruder (SSE) is one of the most widely used ... -
Uwagi do badań stałości punktów odniesienia w wysokościowych sieciach obserwacyjnych na obszarach górniczych
(1995)Każda eksploatacja górnicza oraz towarzyszące jej roboty hydro-geologiczno-inżynierskie wywołują określone przemieszczenia mas górotworu i powierzchni terenu położonego w jej sąsiedztwie. Przemieszczenia te mają najczęściej ... -
V Śląskie Farmaceutyczne Spotkanie Naukowe. Od Nauki do Pacjenta
(Polskie Towarzystwo Farmaceutyczne, 2022) -
Validity and reliability of single-item self-report measure of global self-esteem
(Sciemcee, 2017-03)Self-esteem, is one of the most important predictors of psychological well-being, therefore valid, reliable and convenient measures of this construct are necessary. Well-being is often measured in large scale surveys, and ... -
Validity and reliability of single-item self-report measures of general quality of life, general health and sleep quality
(Sciemcee, 2015)Different aspects of quality of life are important variables in the study of wellbeing and psychosocial functioning. For that reason, measurement of quality of life is indispensable in any researches related to health or ... -
Validity and reliability of single-item self-report measures of meaning in life and satisfaction with life
(Sciemcee Publishing, 2015)Health, subjective well-being and many other fields of research require large surveys that often include repeated measurements, and involve a multitude of crucial variables. This results in a demand for effective, valid ... -
Validity and reliability of single-item self-report measures of social support
(Sciemcee Publishing, 2015)Social support is one of the most important variables in the study of wellbeing and psychosocial functioning. The role of social support is recognized also in public health studies, as it is one of the significant predictors ... -
The value of less Light – Sustainable architectural lighting design
(Universitätsverlag der TU Berlin/D, 2013-10)Since its beginning, the art of external illumination has substantially influenced the creation and the perception of architecture and the night-time urban environment. In this paper, the author examines and defines the ...