Results 1 to 10 of about 1,667,079 (168)
Analysis of possibilities of using biomass from cherry and morello cherry stones for energy purposes [PDF]
E3S Web of Conferences, 2020 Growing demand for energy and care about natural environment is the motivation to find alternative sources of energy. One of them is biomass from cherry and morello cherry stones, which is food processing industry waste.
Bryś Andrzej +4 more
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LIFE CYCLE OF PRODUCTS AND CYCLES [PDF]
Macroeconomic Dynamics, 2010 The aim of this paper is to examine whether the development of waste recycling activities can be a source of economic fluctuations. We assume that the recycling sector has four fundamental characteristics. (i) The production factors are restricted by the production of the last period.
de Beir, Jean +2 more
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A genetic algorithm modelling of temperature distributions in the AZ31B magnesium alloys with 7075 aluminium alloy friction welded joints [PDF]
E3S Web of Conferences, 2019 This paper presents a genetic algorithm modelling of temperature distribution during heating and cooling of AZ31B magnesium alloys with 7075 aluminium alloy friction welded joints.
Winiczenko Radosław +3 more
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Prediction of higher heating value of oat grain and straw biomass [PDF]
E3S Web of Conferences, 2020 The aim of the study was modelling of HHV of oat (grain and straw) biomass. The content of ash, carbon, hydrogen, nitrogen, moisture, volatile materials and the higher heating value of oat (grain and straw) biomass was measured.
Górnicki Krzysztof +2 more
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Influence of circulating pump efficiency on the heat exchange process in a plate heat exchanger used in a solar heating installation [PDF]
E3S Web of Conferences, 2020 In solar heating systems with an absorber area of more than 20 m2, a plate heat exchanger is used as a separator between the primary glycol-based refrigerant and secondary water.
Obstawski Paweł +2 more
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Acta Veterinaria Scandinavica, 2023 Background The timing of artificial insemination is critical to achieve acceptable results in cattle production systems. Over the past 60 years the length and expression of oestrus in dairy cattle has altered.
Caroline Sorknes Haadem +3 more
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Analysis of thermal states of a flat-solar collector using state variables [PDF]
E3S Web of Conferences, 2020 This paper analyses the thermal states of the flat solar collector using the state variable method. The knowledge of the transient states describing the state of the solar heating installation under operating conditions enables the analysis of the heat ...
Obstawski Paweł +2 more
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Product Life Cycle Design based on Product Life Control
The proceedings of the JSME annual meeting, 2003 To solve environmental issues, it is necessary to establish longer and more efficient product life cycles. However, it is difficult to design product life cycles because they are dependent on specific products. In an earlier study, we proposed a methodology to control product life by building in the possibility of upgrading that product, and we have ...
Sakai, Norio +2 more
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Hazards and their reduction in urea production for synthesis reactor by Mitsui - Toatsu technology [PDF]
Scientific Journal of the Military University of Land Forces, 2018 Industrial large-scale urea production creates a number of hazards due to equipment and machine failures as well as service errors. Failures can cause material, environmental and human losses.
Aleksander Wyciszkiewicz +2 more
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On the Shelf Life of Pharmaceutical Products [PDF]
AAPS PharmSciTech, 2012 This article proposes new terminology that distinguishes between different concepts involved in the discussion of the shelf life of pharmaceutical products. Such comprehensive and common language is currently lacking from various guidelines, which confuses implementation and impedes comparisons of different methodologies.
Robert, Capen +12 more
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