Juan Pedro Valentín - Profile and Journalist Details
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Juan Pedro Valentín
Verified
Journalist, Cuatro
Spain
Beats
News , Boulevard Portrait , Sports
gadgets
Content
Minimum dimensionless pressure technique for the indirect measurement of contact angles on super-hydrophobic surfaces
By Juan Valentin, Juan Pedro Valentín Verified, Instituto de Física, Sebastian Schulz, S. Tian| aip.org@ Measuring contact angles (CAs) on super-hydrophobic surfaces (CA can be challenging using traditional methods. In this work, we develop an alternative technique to measure CAs indirectly by measuring the minimum of the dimensionless hydrostatic pressure of a droplet as it de-wets a surface. This technique does not require measuring the slope of the profile close to the three-phase contact line and is devoid of any external pressure or force gauges. An experimental proof of principle is presented.
By Juan Valentin, Juan Pedro Valentín Verified| Heraldo de Aragón Verified "Menudo cabreo tienen con nosotros, pero nosotros a lo nuestro: a hacer periodismo". Esta frase se la escuché a Alejandro Echevarría (Alechu para todos) en varias ocasiones y refleja a la perfección la relación entre un periodista y su editor. En ella ya te había dicho todo. Te trasladaba que anduviéramos con extremo cuidado en las informaciones porque estaban esperando cualquier error nuestro para atacarnos. También mostraba el respaldo a lo que estábamos haciendo y a lo que íbamos a hacer.
Minimum dimensionless pressure technique for the indirect measurement of contact angles on super-hydrophobic surfaces
By Juan Valentin, Juan Pedro Valentín Verified, Instituto de Física, Sebastian Schulz, S. Tian| aip.org@ Measuring contact angles (CAs) on super-hydrophobic surfaces (CA can be challenging using traditional methods. In this work, we develop an alternative technique to measure CAs indirectly by measuring the minimum of the dimensionless hydrostatic pressure of a droplet as it de-wets a surface. This technique does not require measuring the slope of the profile close to the three-phase contact line and is devoid of any external pressure or force gauges. An experimental proof of principle is presented.
Company Info
Cuatro
CNN+, Cuatro, and Sogecable are key players in Spain's media sector, focusing on television broadcasting and news production. Sogecable, now part of PRISA TV, launched CNN+ in 1999 as a 24-hour Spanish news channel in partnership with Turner Broadcasting. Cuatro, introduced in 2005, replaced Canal+ as a free-to-air channel and was later acquired by Mediaset España. Cuatro offers a mix of general entertainment, news, and sports programming, including coverage of major events like the UEFA Euro 2008 and FIFA World Cup. The organizational structure indicates collaboration among these brands, with a workforce of 201–500 employees based in Spain. Alejandro Echevarria serves as President, guiding the company's strategic direction.