Wyniki wyszukiwania - BazTech

1

The Influence of Geotextiles Stabilizing the Soil on Vegetation of Post-Excavation Slopes and Drainage Ditches

Kobiela-Mendrek Katarzyna, Salachna Anna, Chmura Damian, Klama Henryk, Broda Jan

Journal of Ecological Engineering

|

2019

|

Vol. 20, nr 1

125--131

EN

The paper presents preliminary results of the studies concerning influence of geotextiles stabilizing the soil on vegetation of post-excavation slopes and drainage ditches. Analyzed anthropogenic habitats are situated in Międzyrzecze and Nieboczowy (Silesian Province, Southhern Poland). They have been previously subjected to reclamation treatment, consisting in installation of wool and synthetic geotextiles in the ground. The studies on plant community were conducted according to commonly applied Braun-Blanquet approach. Recorded phytocenosis were classified into Molinio-Arrhenatheretea R. Tx.1937 and Stellarietea mediae R. Tx., Lohm. et Prsg.1950 class. For comparison of plant patches growing on two variants of geotextiles Hierarchical Cluster Analysis was used. Moreover, the number of species (S), Shannon-Wiener index (H), evenness index (J) and average heights of herbal layer were calculated. It has been shown, that the type of geotextiles has a slight influence on the variability of investigated plant patches. However, relatively high differences in total coverage and mean height of herbal layer between plots protected and unprotected were observed. It shows that the geotextiles support the process of natural ecological succession on habitats with high inclination, mainly through water retention and reduction of erosion.

2

Programming Periodic Fatigue Research of Composites Utilised for Ski Jumping Suits by Means of Merlin Test Profiler Software

Kobiela-Mendrek Katarzyna

Fibres & Textiles in Eastern Europe

|

2019

|

Vol. 27, no. 3 (135)

106--110

EN

In the thesis, an example of using an Instron 5544 – a tensile testing machine for programmable fatigue research of composite material designed for ski jumping suits is described. A few basic parameters were considered in the research, such as the duty cycle of the composite under exploitation conditions, the duration of individual stages of loads, and mechanical properties of the material obtained as a result of static testing. These parameters were used to program the cycle of research on the Instron 5544 model, a tensile testing machine controlled with a computer and equipped with Merlin Test Profiler software.

PL

W pracy opisano przykład wykorzystania maszyny wytrzymałościowej Instron 5544 do programowalnych badań zmęczeniowych laminatu przeznaczonego na stroje skoczków narciarskich. W badaniach uwzględniono kilka podstawowych parametrów, takich jak: cykl pracy kompozytu w warunkach użytkowania, czas trwania poszczególnych faz obciążeń i właściwości mechaniczne materiału w badaniach statycznych. Przyjęte parametry posłużyły do zaprogramowania cyklu badań na maszynie wytrzymałościowej Instron model 5544 sterowanej komputerem wyposażonym w środowisko Merlin Test Profiler.

3

Kompozyty na kombinezony dla zawodniczek w skokach narciarskich

Kobiela-Mendrek Katarzyna

Przegląd Włókienniczy - Włókno, Odzież, Skóra

|

2014

|

nr 6

20--24

EN

In the paper the construction of the ladies ski jumping suit was described according to demands of the International Ski Federation for the season 2013/2014. The outcomes of the identification of the ski jumping suit composite layers by means of the stereoscopic microscope and scanning electron microscope were presented.