The paper contains a few knowledges about the maintenance activity to establish an optimal maintenance strategy with computer application. Maintenance activity is theoretically analyzed by finding a ...logical scheme for implementing a maintenance strategy and a brief description of the advantages of implementation a computerized maintenance management software.
The study intended to establish how the dynamics of earthworms (Oligochaeta: Lumbricidae) changes in soil (abundance, biomass), under conditions of mineral fertilization with nitrogen and phosphorus ...in four different doses, in a 33-year experimental placement in the west of Romania, in wheat-soybean-maize-barley rotation. The soil indices taken into study were: pH, humus, total nitrogen, phosphorus and potassium. Statistical relations between the studied factors were realized using the dispersion analysis ANOVA and the software Statistical Package for the Social Sciences. The study showed an increase of earthworm abundance and biomass under conditions of chemical fertilization with N and P. The highest number of earthworms was recorded in the treatment with the largest dose of N fertilizer (by 85.85% higher compared to the control treatment). The greatest positive influence on earthworm abundance and biomass was manifested in humus and total N. The greatest negative influence on earthworm abundance was found in pH factor, while P content of soil exerted the greatest negative influence on earthworm biomass.
The academic feminist analyses of the European Union's eastern enlargement were also focused on the process' legitimacy. This article argues for an analytical differentiation between
legitimacy in ...reference to an external process – the European Union's enlargement – and as a marker for an internal process, at the national level, of legislative change and institutional building. Focusing on the Romanian case between 2000 and 2004, it analyzes the internal processes surrounding EU-mandated gender equality legislative and institutional reforms, and tests them for legitimacy. It concludes that that internal legitimacy was profoundly lacking and reveals a democratic deficit in Romania.
A novel series of benzoyl urea derivatives was prepared and identified as NR2B selective NMDA receptor antagonists. The influence of the substitution of the piperidine ring on the biological activity ...of the compounds was studied. Compound 9 was active in the formalin test in
mice.
This paper presents a self-tuning adaptive control structure designed through the minimization of a criteria function. It is described the computation methodology of the control law, being ...particularized for the case of a dual winding induction generator's excitation control. The parameter's estimator, integrated into the control system, is based on the on-line least mean square error algorithm. In order to validate the designed control structure and tuning, there are performed and presented several numerical simulation study cases.
This paper presents the implementation of a neural network-based fault detection for wireless sensor networks (WSNs). There are discussed two proposed approaches: both a centralized and respectively ...distributed fault detection. The methods are validated using a wireless sensor network that takes environmental measurements every 60 seconds. There were considered various fault scenarios that were detected and corrected by the implemented structure. Neural networks (NNs) are used to model the environmental parameter's dynamics. The physical measurement is compared against the predicted value and a given threshold of error to determine sensor fault.
The paper contains a few knowledges about the maintenance activity to establish an optimal maintenance strategy with computer application. Maintenance activity is theoretically analyzed by finding a ...logical scheme for implementing a maintenance strategy and a brief description of the advantages of implementation a computerized maintenance management software. In the end will be presented the conclusions of using the computerized maintenance management software.
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