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Feb 2023 DOI 10.14302/issn.2643-2811.jmbr-22-4302
Edeowede Abhulimen AbelCorresponding author
The Gas Turbine operation was investigated with a view to evolving a system designed to provide a realistic imitation of the controls and operation of a Gas Turbine, used for training purposes. Operator Training Simulator has been widely adopted by many industries being a computer simulation which attempts to model a real-life plant so that it can be studied. A well trained and skilled operator is key in increasing power plant safety and productivity. Therefore, enabling quality training for operators is becoming more important as they need to handle increased load of information and duties whereas the lack of training is a major reason for inadequate performance. By changing variables in the simulator, predictions are made about the behaviour of the engine. It is a tool to virtually investigate the behaviour of the system while in operation. This work becomes indispensable because it is prohibitively expensive or simply too dangerous to allow trainees use the real equipment in a power plant. The Gas Turbine operation’s simulator is born from Object Oriented Programming, employing key programming languages. The simulator design focused on specific tasks in the operation of the Gas Turbine which include; startup, synchronization and monitoring of vital parameters like vibration, temperature, pressure, and angle of the Inlet Guide Vane. The statuses of various valves, pumps and motors as well as the Performance of actuators and the response of concatenated components are also being tracked. The simulator was found to effectively mimic a real plant life. With this simulator, trainee operators in Gas Turbine can spend time learning valuable lessons in a "safe" virtual environment yet living a lifelike experience. This will go a long way in minimizing operators’ error in GT power plants, thereby curtailing power outages and conserving power plant components.
Sep 2018 DOI 10.14302/issn.2641-9181.ijnr-18-2226
V.I.PetukhovCorresponding author
Vladimir State University, Vladimir, Russia
The authors analyze the results of atomic emission spectrometry of hair samples for Al, Cd, Fe, Cr, Cu, Li, Pb, V, and Zn in 952 healthy subjects and 952 liquidators of the Chernobyl nuclear power plant accident. Using correlation analysis (Pearson) of the obtained data, the authors have found pair correlations between metal concentration values. According to the authors, criticality or synchronization (as a particular case of the critical state of the system) can be inherent in all ATP-dependent membrane pumps (P-type) controlling metal-ligand homeostasis in epidermal cells. A quantitative criterion (synchronization index) is proposed to measure the level of criticality (synchronization) in the functioning of membrane ATPases.
May 2015 DOI 10.14302/issn.2644-0105.jbfb-14-547
Di Luigi GianlucaCorresponding author
University of L’Aquila; Department of Life, Health and Environmental Sciences. Gynecology & Obstetrics. Ospedale Civile “San Salvatore”. L’Aquila, Italy.
Background: Scientific research is constantly expanding our knowledge of nutritional needs in pregnancy and lactation. In June 2014 the Food and Drug Administration (FDA) and the Environmental Protection Agency (EPA) issued draft-revised advice encouraging pregnant women, those who might become pregnant, breastfeeding mothers and young children to eat more fish, a total of least 8 ounces per week and to eat a variety of fish lower in mercury in particular anchovies, butterfish, catfish, clam, haddock (Atlantic), herring, mullet, oyster, perch (ocean), sardine, shad, trout (freshwater). However, the presence of radionuclides released from the damaged Fukushima Daiichi nuclear power plant in Pacific biota has aroused worldwide attention and concern. Objective and Methods: Evaluating all the scientific literature available after the Fukushima nuclear disaster, the aim of this review is to demonstrate the safety of seafood products and the use of omega-3 supplements potentially derived from contaminated radioactive fish. Results and Conclusions: There are no reasons to fear the amount of radiation in Japanese fish. The dose received from seafood consumption can be estimated to result in two additional fatal cancer cases per 10,000,000 similarly exposed people. The safest way to get omega-3 fatty acids during pregnancy is by taking a high-quality fish oil supplement, approved by a governing body that provides proof of quality such as the Council for Responsible Nutrition, the European Pharmocopeia Standard or the Norwegian Medicinal Standard and by the Food and Drug Administration or the Environmental Protection Agency 12. Pregnant and breastfeeding women do not need to cut fish out of their diet completely, and it may be safely eaten up to three times per week safely 3.