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A.M. Ryniewicz, Ł. Bojko, A. Ryniewicz, P. Pałka and W. Ryniewicz

. and Garbrecht M. (2009): Long-term results for the uncemented Zweymuller/Alloclassic hip endoprosthesis: a 15-year minimum follow-up of 320 hip operations. - The Journal of Arthroplasty. vol.24, No.6, pp.846-853. [11] Kotela A., Ambroziak P. and Deszczyński M.J. (2012): Fracture of the hip joint endoprosthesis - case report - Sharp Duty, vol.5, pp.1-2. [12] Yates P.J., Quraishi N.A., Kop A., Howie D.W., Marx C. and Swarts E. (2008): Fractures of modern high nitrogen stainless steel cemented stems: cause, mechanism, and avoidance in 14

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D.S. Pathania and G. Verma

of Non-Linear Mechanics, vol.32, No.5, pp.885-904. [4] Stemmer K., Harder H. and Hansen U. (2006): A new method to simulate convection with strongly temperatureand pressure-dependent viscosity in a spherical shell: Applications to the Earth’s mantle . – Physics of the Earth and Planetary Interiors, vol.157, No.3, pp.223-249. [5] Wang Y. and Song H. (2010): On the nonlinear vibration of heated bimetallic shallow shells of revolution. – International Journal of Mechanical Sciences, vol.52, No.3, pp.464-470. [6] Kashkoli M.D. and Nejad M.Z. (2014

Open access

Fruzsina Horváth and László Pokorádi

Abstract

During technical education it is a very difficult yet essential task to develop the good logical engineering thinking of students or pupils. One main part of this thinking is the determination of the optimal set of required input parameters for the calculation task mentioned above. The LogTreeMM (Logical Tree of Mathematical Modelling) method can help to solve this task. The aim of this paper is to show modification of the LogTreeMM method to determine the required parameters of a mathematical model by a simple case study.

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V. Jagadeesh, K. Venkatasubbaiah and A. Lakshumu Naidu

humans. Plant fibers are mostly polysaccharide based fibers; polysaccharide is the major component while manufacturing this fiber. Plant fibers are obtained from stem, leaves, bast, seeds, and fruits. Banana, jute, kenaf, flax, palm are some examples of plant fibers. Animal fibers are mostly super molecule based fibers; they’re obtained from wool or hair of animals [ 2 ]. Alpaca are silk are some examples of animal fibers. Plant fibers have a higher mechanical behavior than animal fibers except for silk fiber; silk fiber has higher strength, however, the value of the

Open access

Arkadiusz Woźniak

Abstract

The evaluation of the impact of contamination in breathing air intended for hyperbaric purposes is essential both for practical and theoretical reasons. The quality of breathing air and the breathing mixes obtained on its basis is of crucial importance with regard to divers’ safety in the course of underwater works. The existing contaminants, as well as substandard quality gases have an adverse impact on divers’ health and life, both in terms of the physiological impact on the body, and fire hazards in hyperbaric complexes. In the process of breathing air production we deal with a few sources of potential contaminants stemming from technical measures. The human body is also responsible for the release of contaminants in hyperbaric conditions. The article presents the above issues and provides insight into existing threats.

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Andrzej Felski and Marta Gortad

Abstract

At present jamming is considered one of the main threats to a GPS receiver’s user, both in dynamic and stationary conditions, and especially regarding telecommunication synchronization. Threats stemming from the use of cheap jammers, more and more commonly referred to as Personal Protecting Devices, available on the Internet, are especially dangerous. Despite the formal ban on using them, there is evidence that they are in common use. Therefore the problem which has hitherto been considered marginal needs to be urgently investigated. Reports dealing with investigations on jamming focus mostly on analyses of effects of various jammers on receivers. This article presents part of the results of experiments focused on the effects and it shows that the effects of jamming when the same device is used depend on both the receiver and the antenna it employs.

Open access

Mihai-Constantin Balaşa, Ştefan Cuculici, Cosmin Panţu, Simona Mihai, Alexis-Daniel Negrea, Mihai-Octavian Zdrafcu, Dorin-Dacian Leţ, Viviana Filip and Ştefan Cristea

and S. Purohit, One – stage long-stem total knee arthroplasty for arthritic knees with stress fractures, Journal of Orthopaedic Surgery 2013; Vol. 21 No. 2, pp.199-203 https://pdfs.semanticscholar.org/30e2/6aa48d15366ee82f7bfcc9227a27f7cee9ff.pdf [9] T. Tóth, J. Živčák, A Comparison of the Outputs of 3D Scanners, Procedia Engineering, Volume 69, 2014, pp. 393-401 http://ac.els-cdn.com/S1877705814002501/1-s2.0-S1877705814002501-main.pdf?_tid=17d22052-67c1-11e7-9f4e-00000aab0f01&acdnat=1499946648_3bce7ec962bf878f67fd664802849386 [10] Şt. Cristea, A

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Wieslaw Grebski and Michalene Grebski

References [1] S. Cai and W. Grebski. „Improve Retention throughImplementation of “Toy FUN” Projects into FundamentalEngineering Classes”, in Proc. IAJC-ASEE, JointInternational Committee, 2011. [2] W. Grebski and S. Cai. „Partnership with STEM High School as a Recruiting Tool for Engineering Program”, in Proc. The 10th Latin American and Caribbean Conference for Engineering and Industry, Panama City, Panama, 2012. [3] W. Grebski. „Teaching Mathematics as a Global Challenge for Engineering Education”, in Proc

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Wieslaw Grebski and Michalene Eva Grebski

References [1] S. Cai and W. Grebski. “Improve Retention through Implementation of »Toy FUN« Projects into Fundamental Engineering Classes”, in Proc. IAJC-ASEE, Joint International Committee, 2011. [2] W. Grebski and M. Grebski. “Keeping Technical Education Aligned to the Needs and Expectations of Industry. Management Systems in Production Engineering, vol. 22(2), pp. 77-80, 2016. DOI:10.12914/MSPE-01-02-2016. [3] W. Grebski and S. Cai. “Partnership with STEM High School as a Recruiting Tool for Engineering

Open access

Michalene Eva Grebski, Radosław Wolniak and Wieslaw Grebski

. (2014). “Recruitment of Engineering Students through Community-Based Programs”, in Proceedings: The 12th Latin American and Caribbean Conference on Engineering and Industry, Quayaquil, Ecuador. Grebski, W. (2015). Teaching Mathematics as a Global Challenge for Engineering Education. In Proceedings: ICIE Conference, 2015. Grebski, W. and Cai, S. (2012). Partnership with STEM High School as a Recruiting Tool for Engineering Program. In Proceedings: The 10th Latin American and Caribbean Conference for Engineering and Industry, Panama City