A Water-Based Pressure Casting Method for Transtibial Prosthetic Socket Fit in Developing Countries

Author(s):  
N. Lythgo ◽  
P. Vee Sin Lee ◽  
S. Laing ◽  
J. Lavranos ◽  
H. T. Nguyen
2014 ◽  
Vol 51 (1) ◽  
pp. 101-110 ◽  
Author(s):  
Peter Vee Sin Lee ◽  
Noel Lythgo ◽  
Sheridan Laing ◽  
Jimmy Lavranos ◽  
Nguyen Hai Thanh

2020 ◽  
Vol 7 (1) ◽  
pp. 1745553
Author(s):  
Gema Akbar Ramadhani ◽  
Susy Susmartini ◽  
Lobes Herdiman ◽  
Ilham Priadythama ◽  
Duncan Shepherd

1998 ◽  
Vol 106 (1234) ◽  
pp. 609-615
Author(s):  
Toshihisa NAKAMICHI ◽  
Hiroyuki KIMURA ◽  
Kazue TAZAKI

2015 ◽  
Vol 5 (2) ◽  
pp. 330-335 ◽  
Author(s):  
Torben Lenau ◽  
Thomas Hesselberg

Poor sanitation is a major problem for health and water resources in many developing countries. Inexpensive but also attractive toilets could be a way to fight these problems. However, radical new ideas are needed to identify innovative solutions. Such novel ideas might be found by using systematic design methods that search nature for animals and plants that solve similar problems. The paper describes how four conceptual sanitation solutions for dry toilets solving problems with smell, cleaning and flies can be made in collaboration between a design engineer and a biologist using biomimetic design methods. The solutions have the potential to offer significant improvements compared to conventional non-water-based sanitation.


2001 ◽  
Vol 44 (1) ◽  
pp. 111-119 ◽  
Author(s):  
I.H. Katzarov ◽  
Y.B. Arsov ◽  
P. Stoyanov ◽  
T. Zeuner ◽  
A. Buehrig-Polaczek ◽  
...  

2013 ◽  
Vol 631-632 ◽  
pp. 676-680
Author(s):  
Lan Ying Wu ◽  
Xiao Lian Xiang ◽  
Long You

In order to obtain cover and pump body of tin bronze Tonghai pump that is dense and good pressure resistance,the casting mold of the cover of Tonghai pump is metal mold. The casting method of Tonghai pump is vacuum counter-pressure casting.The method of casting pump body of Tonghai pump is vacuum investment casting. This research is about reasonable casting process parameters of vacuum counter-pressure casting and vacuum investment casting.Finally qualified castings of cover and pump body of Tonghai pump can be obtained.


Electronics ◽  
2020 ◽  
Vol 9 (9) ◽  
pp. 1456
Author(s):  
Rifky Ismail ◽  
Rilo Berdin Taqriban ◽  
Mochammad Ariyanto ◽  
Ali Tri Atmaja ◽  
Sugiyanto ◽  
...  

This study aims to invent a new, low-cost, and faster method of prosthetic socket fabrication, especially in Indonesia. In this paper, the photogrammetry with the 3D printing method is introduced as the new applicative way for transradial prosthetic making. Photogrammetry is used to retrieve a 3D model of the amputated hand stump using a digital camera. A digital camera is used for photogrammetry technique and the resulting 3D model is printed using a circular 3D printer with Polylactic acid (PLA) material. The conventional casting socket fabrication method was also conducted in this study as a comparison. Both prosthetic sockets were analyzed for usability, and sectional area conformities to determine the size deviation using the image processing method. This study concludes that the manufacturing of transradial prosthetic sockets incorporating the photogrammetry technique reduces the total man-hour production. Based on the results, it can be implied that the photogrammetry technique is a more efficient and economical method compared to the conventional casting method. The 3D printed socket resulting from the photogrammetry method has a 5–19% area deviation to the casting socket but it is still preferable and adjustable for the transradial amputee when applied to the stump of the remaining hand.


2017 ◽  
pp. 2-15
Author(s):  
Piotr J. Kowalik ◽  
Simo Lakkonen ◽  
Ziemowit Suligowski

This paper describes origin and development of sewer system in Gdansk, Poland, designparameters for water use and wastewater generation, gravity siphons, pumping stations,sewage fields. It was the first and complete solution of urban water on the Europeancontinent. This report gives literature review, background of decisions, comprehensive resultsand final conclusions. Paper focused on the water-based infrastructure in the city, namelypotable water, sewerage, irrigation and drainage. Described technologies are still in use andcan be used in the future in developing countries, for example for re-use of wastewater onirrigation fields.


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