S. Maderwald, K. Nassenstein, S. Orzada, L. C. Schäfer, M. Oehmigen, A. K. Bitz, O. Kraff, I. Brote, S. C. Ladd, M. E. Ladd, and H. H. Quick Erwin L. Hahn Institute for Magnetic Resonance Imaging, Essen, Germany, Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany, Institute of Medical Physics, Friedrich-Alexander-University Erlang...

This article reports the active control of base flows using the experimental procedure. Active control of base pressure helps in reducing the base drag in aerodynamic devices having suddenly expanded flows. Active control in the form of microjets having 0.5 mm radius placed at forty-five degrees apart is employed to control the base pressure. The Mach numbers of the present analysis are 1.7, 2....

Abstract The proportion of window area on a building façade is one the key energy-saving design parameters affecting indoor thermal comfort, and energy performance building. To avoid excessive loss or gain, determining optimal size essential. Accordingly, this paper aims to investigate impact Window-to-Wall ratio (WWR) all sixteen cardinal, intercardinal, secondary intercardinal directions cons...

When incorrectly designed, windows can be responsible for unnecessary energy consumption in a building. This may result from its dimensions, orientation and shadowing. In a moderate climate like the Portuguese, and considering an annual thermal comfort assessment of a space, if windows are under-dimensioned or overshadowed, they can contribute to the increase of heating needs. However, when ove...

Good daylighting performance positively affects students’ physical and mental health, learning efficiency, the building’s energy-saving capability. Due to terrace classroom having ample space, large capacity, ability avoid obstructing sight, meet various use needs, it is most important place in university buildings. However, research on of classrooms limited, leading a lack quantitative guidanc...

One of the important aims window design is to provide quality views that affect occupant health, well-being, and work performance. We assessed effect geometric variables (i.e., view angles, glazing area (Window-to-Wall Ratio, WWR), distance, viewing direction percentage in visual field (PWV)) had on occupants’ satisfaction access. conducted a human subject experiment with 40 participants using ...

Failure of the quay walls due to earthquakes results in severe economic loss. Because of hazards threatening such inexpensive nodes of national and international transportation networks, seismic design of quay walls is still an evolving topic in marine structural engineering. This study investigates the sensitivity of the gravity-type quay wall stability respect to uncertain soil and seismic pr...

Introduction: In implantation, endometrial epithelium is affected by the release of steroid hormones secreted from the ovary and allows the blastocyst to bind. This course is called the “implantation window” and occurs about 4-10 days after the onset of progesterone secretion. Therefore, the endometrium undergoes changes in the configuration of microvilli in the apical membrane, as well as the ...

In the narrow geosynthetic-reinforced retaining walls a stable rear wall exists in a short distance and so there is no enough space to extend appropriate length of reinforcements. In this case, the probability of overturning of retaining wall increases especially when subjected to earthquake loading. To increase the stability of the wall, reinforcements may be connected to the stable rear surfa...

The use of energy efficient structures in the local construction industry assists promoting green building concepts, leading to economical and eco-friendly solutions for self-sustained structures. main aim this study was examine compare performance various buildings. Detailed 3D models (house, office, warehouse buildings) were constructed investigated their cost savings using simulation tools (...