Search results

Filters

  • Journals
  • Authors
  • Keywords
  • Date
  • Type

Search results

Number of results: 6
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

The public demand for urban parks, citizens’ use and habits are different in every age and region. But do public parks have some eternal, unchanging values in a field of social welfare? Can we regard the idea as a value, which brought to life the 18th century public park movement in today’s rushing, tinsel and digital world? Can we find any general aspect in park use forms, which is true, even to the casual visitor or a tourist in a historical garden or a daily guest in an average city park. The Budapest Városliget is one of the world’s first urban park, in some ways perhaps the first. The site was used for urban recreation from mid-18th century, and then the city of Pest decided to develop a public park to increase the livability of the city. The plan was drawn up by Heinrich Nebbien between 1813–1816. Although Nebbien’s plan realized partly due to the lack of resources, in the capital’s life the Városliget have been acting – with changing functions and space structure – as a vital part of the open space recreation for 200 years. This article focuses on the role of urban public parks, and analyses the relationship between changing space structure and use on the example of Városliget. The Városliget analysis is based on the structural and park user surveys, which were made during the last three decades. The history of the urban park clearly illustrates that cramming new functions beyond the historical outdoor recreational activities has not increased the value of the park, but significantly deteriorate what is value and what makes the park loveable. It is almost understandable that the park is not on the international tourism program, it does not appear on the map of the capital’s iconic creations, institutions. But it could be there. Everything predestines for it: two centuries of history, the idea of its birth and creation, its location in the city structure, its current old and valuable trees. The Városliget is a value in itself, without stuffing and subsuming with new institutional functions.

Go to article

Authors and Affiliations

Kinga Szilágyi
Fruzsina Zelenák
Orsolya Fekete
Download PDF Download RIS Download Bibtex

Abstract

The paper presents Finite Elements Method numerical analysis of strength of friction pairs most often used in hip and knee joints alloplasty. Analytic solutions are to indicate and define the areas where damages or premature wear of cooperating elements may occur. Analytical-experimental research states complete and thorough analysis. Accurate technical simulation of the joints of the human motor system, is difficult to conduct due to high level of complexity of human bio-bearings. All attempts to simulate the work of human joints, lead only to an approximate reflection of real human joint motion. To properly face the above problems, along with numerical analysis, there have been conducted empirical tests on the simulator of knee joint endoprosthesis
Go to article

Authors and Affiliations

M. Nabrdalik
1
ORCID: ORCID
M. Sobociński
1
ORCID: ORCID

  1. Czestochowa University of Technology, Faculty of Mechanical Engineering and Computer Science, Department of Technology and Automation, 21 Armii Krajowej Av ., 42-201 Czestochowa, Poland
Download PDF Download RIS Download Bibtex

Abstract

In the article, three types of proximity sensors that might be used in bicycle rangefinder to measure the distance between the bicycle and an overtaking car are compared. The influence of various factors on the accuracy of the distance measurements obtained using ultrasonic, infrared and laser sensors is tested, among others, light conditions, car surface type and colour, rain, pollination and vibrations.
Go to article

Bibliography

[1] M. De Angelis, V.M. Puchades, F. Fraboni, L. Pietrantoni, and G. Prati, “Negative attitudes towards cyclists influence the acceptance of an in-vehicle cyclist detection system,” Transportation Research Part F: Traffic Psychology and Behaviour, vol. 49, pp. 244–256, Aug. 2017. DOI: https://doi.org/10.1016/j.trf.2017.06.021
[2] E. Robartes, and T. D. Chen, “Crash histories, safety perceptions, and attitudes among Virginia bicyclists.” Journal of Safety Research, vol. 67, pp. 189–196, Dec. 2018. DOI: https://doi.org/10.1016/j.jsr.2018.10.009
[3] I. Walker, I. Garrard, and F. Jowitt, “The influence of a bicycle commuter's appearance on drivers’ overtaking proximities: An on-road test of bicyclist stereotypes, high-visibility clothing and safety aids in the United Kingdom,” Accident Analysis & Prevention, vol. 64, pp. 69–77, Mar. 2014. DOI: https://doi.org/10.1016/j.aap.2013.11.007
[4] B. Beck, D. Chong, J. Olivier, M. Perkins, A. Tsay, A. Rushford, L. Li, P. Cameron, R. Fry, and M. Johnson, “How much space do drivers provide when passing cyclists? Understanding the impact of motor vehicle and infrastructure characteristics on passing distance,” Accident Analysis & Prevention, vol. 128, pp. 253–260, Jul. 2019. DOI: https://doi.org/10.1016/j.aap.2019.03.007
[5] M. O'Reilly, “The device that measures cyclist passing distances,” http://www.executivestyle.com.au/the-device-that-measures-cyclist-passing-distances-gpehki (accessed on 8 July 2020).
[6] M. Dozza, R. Schindler, G. Bianchi-Piccinini, and J. Karlsson, “How do drivers overtake cyclists?” Accident Analysis & Prevention, vol. 88, pp. 29-36, Mar. 2016. DOI: https://doi.org/10.1016/j.aap.2015.12.008
[7] C3FT v1 | Codaxus LLC: http://codaxus.com/c3ft/c3ft-v1/ (accessed on 8 July 2020).
[8] C3FT v2 | Codaxus LLC: http://codaxus.com/c3ft/c3ft-v2/ (accessed on 8 July 2020).
[9] C3FT v3 | Codaxus LLC. http://codaxus.com/c3ft/c3ft-v3/ (accessed on 8 July 2020).
[10] A. K. Debnath, N. Haworth, A. Schramm, K. C.Heesch, and K. Somoray, “Factors influencing noncompliance with bicycle passing distance laws,”, Accident Analysis & Prevention, vol. 115, pp. 137-142, Jun. 2018. DOI: https://doi.org/10.1016/j.aap.2018.03.016
[11] J. Coburn, “Distance Sensor.” In: Build Your Own Car Dashboard with a Raspberry Pi. Apress, Berkeley, CA (2020). DOI: https://doi.org/10.1007/978-1-4842-6080-7_13
[12] Heckathorn, B.; MacPherson, T.; Schumacher, T., “ Distance Sensors,” http://www.eecs.umich.edu/courses/eecs270/270lab/270_docs/Distance%20Sensor%20Presentation.pdf (accessed on 8 July 2020).
[13] B.G. Pavithra, P. Siva Subba Rao, A. Sharmila, S. Raja, and S.J.Sushma, “Characteristics of different sensors used for Distance Measurement,” International Research Journal of Engineering and Technology (IRJET), vol. 4, pp. 698-702, Dec. 2017.
[14] S. Adarsh, S. Mohamed Kaleemuddin, B. Dinesh, and K.I. Ramachandran, “Performance comparison of Infrared and Ultrasonic sensors for obstacles of different materials in vehicle/ robot navigation applications,” Proc. IOP Conf. Series: Materials Science and Engineering, 149, 2016. DOI: 10.1088/1757-899X/149/1/012141
[15] J. Majchrzak, M. Michalski, and G. Wilczyński, “Distance Estimation With a Long-Range Ultrasonic Sensor System,” IEEE Sensors Journal, vol. 9, pp. 767–773, 2009.
[16] T. Mohammad, “Using Ultrasonic and Infrared Sensors for Distance Measurement,” International Journal of Mechanical and Mechatronics Engineering, vol. 3, no. 3, pp. 273-278, 2009.
[17] S. Rzydzik, A. Saltarski, M. Roziński, and K Psiuk, “Infrared Distance Sensors for Autonomous Model of Truck with Semi-trailer,” 2020 6th International Conference on Mechatronics and Robotics Engineering (ICMRE), Barcelona, Spain, 2020, pp. 104-109 (2020). DOI: 10.1109/ICMRE49073.2020.9065091
[18] W. Xu, C. Yan, W. Jia, X, Ji, and J. Liu, “Analyzing and Enhancing the Security of Ultrasonic Sensors for Autonomous Vehicles,” IEEE Internet of Things Journal, vol. 5, no. 6, pp. 5015–5029, Dec. 2018. DOI: 10.1109/JIOT.2018.2867917.
[19] R. Burnett, Ultrasonic vs Infrared (IR) Sensors – Which is better? https://www.maxbotix.com/articles/ultrasonic-or-infrared-sensors.htm (accessed on 8 July 2020).
[20] Distance Sensor Comparison Guide. https://www.sparkfun.com/distance_sensor_comparison_guide (accessed on 8 July 2020).
[21] HC-SR04 (ultrasound) vs Sharp GP2Y0A02YK0F (IR) vs VL53L0X (Laser), which solution to choose for distance measurement with Arduino or Raspberry Pi. https://diyprojects.io/hc-sr04-ultrasound-vs-sharp-gp2y0a02yk0f-ir-vl53l0x-laser-solutions-choose-distance-measurement-arduino-raspberrypi/#.XSWSkBLTAsc (accessed on 8 July 2020).
[22] https://diyprojects.io/proximity-sensor-a02yk0-test-calibration-sharp-gp2y0a02yk0f-asian-clone/#.XSMH7xLTAsc (accessed on 8 July 2020).
[23] Product User’s Manual – HC-SR04 Ultrasonic Sensor. Cytron Technologies, 2013. GP2Y0A02YK0F. Sharp Corporations, 2006
[24] A. Szydło, A device that measures the distance between a bicycle and a car. Master thesis written under supervision of Bartłomiej Zieliński, Silesian University of Technology, Institute of Computer Science, Gliwice 2017 [in Polish].
Go to article

Authors and Affiliations

Bartłomiej Zieliński
1

  1. Silesian University of Technology, Poland
Download PDF Download RIS Download Bibtex

Abstract

The distribution of pelagic Polychaeta in the Scotia Front region is presented. 6 polychaete taxa were recorded in the material with the most abundant Pelagobia longicirrata which constituted 86% of all collected specimens. The mixing of water masses in the frontal zone influence the quantitative distribution of polychaetes in the water column.

Go to article

Authors and Affiliations

Jacek Siciński
Download PDF Download RIS Download Bibtex

Abstract

Eighty five faecal samples of the Svalbard reindeer inhabiting the coastal terrace of the northern side of Hornsund were collected in July 2005 and analyzed coprologically. The standard flotation method revealed a 97.6% prevalence of infection at an average intensity of 20 eggs in a single subsample. The quantitative, modified McMaster method helped to estimate the mean number of eggs in a gram of faeces (EPG) at 134.7. In the studied samples eggs of nematodes representing two species, i.e. Ostertagia gruehneri (97.6%, on average 20 eggs in a sample) and Marshallagia marshalli (2.3%, single eggs), were identified.

Go to article

Authors and Affiliations

Marcin Popiołek
Justyna Szczęsna
Jan Kotusz
Jan Kusznierz
Andrzej Witkowski

This page uses 'cookies'. Learn more