Apparatus for Geosynthetic Interface Testing and Evaluation Under Elevated Temperature Conditions

2013 ◽  
Vol 41 (2) ◽  
pp. 20120036 ◽  
Author(s):  
Tanay Karademir ◽  
J. David Frost
Keyword(s):  
Elevated Temperature ◽  
Temperature Conditions ◽  
Testing And Evaluation

scholarly journals Physical Stability and Viscoelastic Properties of Co-Amorphous Ezetimibe/Simvastatin System

2019 ◽  
Vol 12 (1) ◽  
pp. 40 ◽  
Author(s):  
Justyna Knapik-Kowalczuk ◽  
Krzysztof Chmiel ◽  
Karolina Jurkiewicz ◽  
Natália Correia ◽  
Wiesław Sawicki ◽  
...  
Keyword(s):  
Elevated Temperature ◽  
Viscoelastic Properties ◽  
Room Temperature ◽  
Physical Stability ◽  
Ternary Systems ◽  
Storage Conditions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Conditions ◽  
First Time

The purpose of this paper is to examine the physical stability as well as viscoelastic properties of the binary amorphous ezetimibe–simvastatin system. According to our knowledge, this is the first time that such an amorphous composition is prepared and investigated. The tendency toward re-crystallization of the amorphous ezetimibe–simvastatin system, at both standard storage and elevated temperature conditions, have been studied by means of X-ray diffraction (XRD). Our investigations have revealed that simvastatin remarkably improves the physical stability of ezetimibe, despite the fact that it works as a plasticizer. Pure amorphous ezetimibe, when stored at room temperature, begins to re-crystallize after 14 days after amorphization. On the other hand, the ezetimibe-simvastatin binary mixture (at the same storage conditions) is physically stable for at least 1 year. However, the devitrification of the binary amorphous composition was observed at elevated temperature conditions (T = 373 K). Therefore, we used a third compound to hinder the re-crystallization. Finally, both the physical stability as well as viscoelastic properties of the ternary systems containing different concentrations of the latter component have been thoroughly investigated.

scholarly journals Numerical Analysis of Thin-Walled Purlins Restrained by Sheeting in Elevated Temperature Conditions

2015 ◽  
Vol 61 (4) ◽  
pp. 35-46 ◽  
Author(s):  
K. Rzeszut ◽  
Ł. Polus
Keyword(s):  
Elevated Temperature ◽  
Numerical Analysis ◽  
Bearing Capacity ◽  
Temperature Increase ◽  
Fem Model ◽  
Materials Properties ◽  
Temperature Conditions ◽  
Thin Walled ◽  
European Standards

The paper presents an analysis of the influence of elevated temperature on thin-walled purlins restrained by sheeting. In the first part of the study the bearing capacity of purlins cooperating with sheeting is examined in normal and elevated temperature based on European Standards. Next, special attention is paid to creating a numerical FEM model of the restrained purlins in Abaqus program taking into account different materials properties with respect to temperature increase.

scholarly journals Carbon-Nanotube Based Thermoelectrical Paste for Enhancing Solar Cell Effciency

2018 ◽  
Vol 64 ◽  
pp. 02005 ◽  
Author(s):  
Fathi Sanad Mohamed ◽  
Shaker Ahmed ◽  
O. Abdellatif Sameh ◽  
Elmahallawi Iman ◽  
A. Ghali Hani ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Solar Cell ◽  
Carbon Nanotube ◽  
Elevated Temperature ◽  
Seebeck Coefficient ◽  
Passive Cooling ◽  
Efficiency Enhancement ◽  
Thermal Paste ◽  
Temperature Conditions ◽  
Cooling Technique

A super-passive cooling technique based on a thermal paste is proposed for PV efficiency enhancement in elevated temperature conditions. A mixture between carbon nanotubes and graphene having a promising Seebeck coefficient is chosen. An overall enhancement in efficiency by around 58% was reached while thermoelectrically supplying hundreds of micro-Watt per PV Watt.

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