This study aimed to reveal the influence of draw ratio and take-up speed on pore size distribution morphology hollow fiber ultrafiltration membrane selective layer. To this end, spinnerets with ring ducts 1.8 1.3 mm were employed, whereas external diameter obtained was kept equal. Atomic force microscopy scanning electron employed Liquid–liquid displacement porosimetry used determine limiting d...

Mark D. Gross, Department of Planning and Design, University of Colorado People draw diagrams and sketches to think, argue, and communicate about problems in domains ranging from mechanical engineering to music. To understand a problem better, mathematician George Polya advised, “Draw a figure ... even if your problem is not a problem of geometry.”1 We can debate whether making a figure really ...

Public understanding of thewater system is vital in confronting contemporarywater challenges, as public support is necessary for implementing measures to address shortages and repair infrastructure. In this study, university student participants (N = 457) were asked to draw diagrams illustrating how water reaches the tap in an average home in the U.S. and is then returned to the natural environ...

From its start, the so-called Islamic State of Iraq and the Levant (ISIL/ISIS) has been successfully exploiting social media networks, most notoriously Twitter, to promote its propaganda and recruit new members, resulting in thousands of social media users adopting a pro-ISIS stance every year. Automatic identification of pro-ISIS users on social media has, thus, become the centre of interest f...

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This open access book explores how children draw god around the world. It looks at children’s drawings in a large variety of cultural and religious