7 research outputs found

    Machine and equipment monitoring, automation of technological processes in longwall and roadheading systems

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    Gromadzenie informacji dotyczących aktualnego przebiegu produkcji w sposób przejrzysty i ogólnie dostępny a także nadzór nad stanem pracy urządzeń produkcyjnych, nad maszynami i urządzeniami elektroenergetycznymi czy instalacjami przemysłowymi nadawy urobku na jednym stanowisku np. dyspozytora energomaszynowego w zakładzie pracy był i jest trendem wielu zakładów przemysłowych, także górniczych. Nadzorowanie maszyn jak i dostosowywanie ich parametrów poprzez szeroko rozumianą wizualizację w zmieniającym się środowisku ich pracy, to główny cel służb energomaszynowych a także geologicznych czy tąpań. Szczególnym problemem jest eksploatacja w bardzo trudnych warunkach i w strefach szczególnego zagrożenia.Information gathering concerning current production process in a clear and widely available manner as well as supervision of the operating status of the production equipment; machines and electrical power devices or manufacturing installation of mine output feed on one job position, e.g. of mechanical and electrical equipment dispatcher in the work place was and still is the trend in many plants, mining as well. Supervision of the machines and adjusting its parameters through visualization in a broad sense in its changing working environment is the main goal of the electrical and mechanical service as well as geological or rockburst too. There is a special problem in exploitation in very difficult conditions and danger zones

    Changes in Histological Structure, Interleukin 12, Smooth Muscle Actin and Nitric Oxide Synthase 1. and 3. Expression in the Liver of Running and Non-Running Wistar Rats Supplemented with Bee Pollen or Whey Protein

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    Introduction: Bee pollen is a natural substance obtained from flowers by bees. It is a rich source of protein, vitamins and minerals. It can be used as a dietary supplement. Bee pollen has been investigated for the treatment of some diseases with promising potential. It can be helpful in supportive therapy for dyslipidemia, metabolic syndrome, diabetes type 2, as well the prevention and control of coronary heart disease and myocardial infarction. Whey protein is a rich source of amino acids. It is a basic dietary supplement for many athletes, both professional and amateur. It stimulates muscle growth and provides nutrition for cachectic patients. Aim of the study: The objective of the study was to assess the impact of dietary supplementation of bee pollen or whey protein on the Wistar rat liver histological structure and expression of interleukin 12, smooth muscle actin and nitric oxide synthases among running and non-running rats. Material and methods: Thirty male Wistar rats were divided into six equal groups, three running and three non-running. Among both there was one control, one supplemented with bee pollen and one receiving whey proteins. After 8 weeks, all animals were decapitated and their livers were collected. Five micrometer thick slides were prepared and used for classical histological staining and immuno-histochemistry. ImageJ image analysis software was used to measure optical density and immunohistochemistry profile coverage. Results: Among all groups, morphology of liver was similar. In the running control group, expression of interleukin-12 (IL-12) was decreased as well as expression of endothelial nitric oxide synthase (eNOS) in a group of bee pollen supplemented rats. No significant changes in α- smooth muscle actin (α-SMA) expression was observed. Conclusions: Bee pollen is proving to be a questionable choice for athletes as an alternative to whey protein. Bee pollen supplementation affects hepatocyte cellular activity and has hepatoprotective effects. Whey protein performs worse in this regard. Lower antioxidant properties were found in groups supplemented with bee pollen than with whey protein
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