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The Influence of Leadership in Implementing Management Systems

-Marseille III University, Dissertation. Paladino B. (2007) Five Key Principles of Corporate Performance Management. John Wiley & Sons Stogdill, R.M. (1950) Leadership, membership and organization. Psychological Bulletin, 47(1), 3. Welch J.; Wech S. (2005). Winning. HarperBusiness.

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Experimental Investigation of a Centrifugal Pump Hydraulic Performance in Hydraulic Transmission of Solids

reduce the variance of the results so that they are less dependent on the specifics of a single classifier. This will also reduce the variance of the bias, because a combination of multiple classifiers may lead to a more expressive concept class than a single classifier [ 1 ]. In a clear contrast to the general performance of centrifugal slurry pumps in conventional solid–liquid systems, the total head height increased with an increase in the slurry solid mass content because of several reasons, including unique friction loss behavior ( i.e ., drag reducing feature) of

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Natural convection and radiation in a radial porous fin with variable thermal conductivity

-645. Kiwan S. (2006): Thermal analysis of natural convection in porous fins. - Transport in Porous Media, vol.67, pp.17-29. Kundu B. and Bhanja D. (2010): Performance and optimization analysis of a constructal T-shaped fin subject to variable thermal conductivity and convective heat transfer coefficient. - Int. J. Heat Mass Transfer, vol.53 pp.254-267. Lorenzini G. and Moretti S. (2007): Numerical analysis on heat removal from Y-shaped fins: efficiency and volume occupied for a new approach to performance optimization. - Int. J. Thermal

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Influence of Selected Synthesis Gas Component on Internal Parameters of Combustion Engine

. “Pyrolysis and gasification of food waste: Syngas characteristics and char gasification kinetics”, Applied Energy 87(1), pp. 101 – 108, 2010 . DOI: 10.1016/j.apenergy.2009.08.032 [4] Kapilan, K., Jullya, N. “Studies on Improvement of Performance of Compression Ignition Engine Fuelled with Mixture of Honge Biodiesel and Tire Pyrolysis Oil” Strojnícky časopis – Journal of Mechanical Engineering 68 (1), pp. 15 – 24, 2018 . DOI: 10.2478/scjme-2018-0002 [5] Chríbik, A., Polóni, M., Lach, J., Ragan, B. “Utilization of synthesis gases in combustion engine”, KOKA

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Force Analysis of Bench Press on Stable and Unstable Base

Abstract

The contribution reviews current technologies for the measurement of performance in athletes during stationary exercise and validates the technology utilizing accelerometry. The behaviours of force during the bench press exercise on a stable and unstable base are reviewed and the results are presented. It was found that, training on an unstable base can be exploited by athletes to maximize their performance.

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Performance Requirements and Simulation of Rotor Operation for High-Mountain Rescue Helicopter

Abstract

Simulation results concerning performance of helicopter suitable for high-mountain rescue operations are presented. Including operations in regions of the highest Himalaya Mountains, the possibility of hover ceiling out of ground effect (OGE) at 10,000 m above sea level is assumed. Demand of high ratio of developed lift to power required for hover leads to choice the coaxial rotor configuration as the best for rescue helicopter, which can operate in extremely high mountain environment, and gives good stability features in wind gust conditions in comparison with single main rotor helicopter. For performance calculations the simple model of helicopter is applied, which consists of fuselage point mass and rotor disk. The cases of partial and total power loss are considered to define range of H-V zones and possibilities of flight continuation due to height of landing surface over level of sea. The rotor blades and rotor loads are calculated applying detail model of elastic blade, which includes effects of its deflections due to out-of-plane bending, in plane bending, and torsion. The Runge-Kutta method is applied to solve equations of motion of rotor blades with taken into account effects of blade pitch control and variable deflections of blades. According to Galerkin method, the blade parameters of motion are treated as a combination of torsion and bending eigen modes of the rotor blades. Elastic blade model allows defining behaviour rotor blades in selected states of flight: hover, level flight, wind gust conditions, and pull-up manoeuvre. The results of simulation for upper and lower rotor for blade deflections and loads are shown in form of time-run plots and rotor disk distributions. The simulation investigation may be applied to define features of helicopter configuration suitable for operation in extremely high mountain conditions.

Open access
The Influence of the Blades Leading Edge Anti-Erosion Protection on Main Rotor Performances

Abstract

This article presents the influence of rotor blade airfoil shape on main rotor performances. In this case, we analysed the influence of anti-erosion tape, which is applied to the leading edge of the blade to protect the blades from environmental conditions. In Gyro-Tech Innovation an Aviation Company and Institute of Aviation the independent tests of helicopter and gyroplane main rotors were performed. Research includes: bench tests, on the test stand for dynamic testing of insulated rotors and tests on two flying constructions, gyroplane Cavalon produced by AutoGyro GmbH Company and ultralight helicopter Dynali H3. On the test bench, a two-blade rotor, used in ultralight and unmanned helicopters, was tested. In article, the authors present importance of the proper selection and application of anti-erosion coatings on rotor blades. Discuss the behaviour of the above-mentioned constructions with main rotor blades leading edge covered anti-erosion tape, during flight tests. The results of bench tests, including the comparison of polar curves of the main rotor with anti-erosion coating and without were also presented and discussed.

In the summary of this article among others the solution of technological pocked introduced in the rotor blade, corresponding to the thickness of the anti-erosion tapes, in such way that after tape is applied it does not change the contour of the blade airfoil were presented.

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Environmental Performance of the Technology of Production of Bimodal Polyethylene (HDPE) with the Application of LCA Techniques

. (2007). Ekologiczna ocena cyklu życia procesów wytwórczych (LCA). Warszawa: Wydawnictwo Naukowe PWN. Marcinkowski, A and Zych, K. (2017). Environmental performance of kettle production: Product Life Cycle Assessment. Management Systems in Production Engineering, [online] Volume 25, Issue 4, pp 255-261. Available at: https://content.sciendo.com/view/journals/mspe/25/4/article-p255.xml [Accessed 23 May 2018]. Mills, N., Pearce, P., Farrow, J., Thorpe, R.B. and Kirkby, N.F.,( 2014) Environmental & economic life cycle assessment of current

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Sensitive Analysis on Selection of Piston Material Using MADM Techniques

Abstract

Decision making in material selection plays important role in selecting appropriate material based on design and manufacturing attributes. Proposing a new material is always a challenging task so the researchers used Decision making assistance tools. In the Present paper the application of Multi-Attribute Decision Making (MADM) methods are applied to the piston material selection for optimal design process. Comparative study of subjective and objective criteria weights on selected MADM methods are done. Sensitivity analysis is conducted to prove the consistency in performance score ranking order as the criteria weights for each alternative varies.

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Experimental Research of the Material Filtration Characteristics with Nanofibers Addition

References [1] Barris, M. A., Total Filtration TM : The influence of filter selection on engine wear, emissions, and performance , SAE 952557, 1995. [2] Diesel Engine Air Filtration, Materiały informacyjne firmy PALL Corporation , USA, 2004. [3] Bugli, N., Automotive engine air cleaners – performance trends , SAE Technical Paper 2001-01-1356. [4] Durst, M., Klein, G. Moser, N., Filtration in Fahrzeugen , Mann+Hummel GMBH, Ludwigsburg, Germany 2005. [5] Dziubak, T., Problems of dust removal from multi-cyclones of engine air

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