1 Sheffield Wednesday will consider themselves to have the advantage after holding Huddersfield to a goalless draw in the first leg of their Sky Bet Championship play-off semi-final at the John Smith’s Stadium.The Terriers, who finished the regular season in fifth, bossed the entire 90 minutes but were unable to find an elusive goal, with Izzy Brown clipping the crossbar in the first half and Nahki Wells twice testing Keiren Westwood in the Wednesday net.David Wagner’s men have had a brilliant season, flirting with automatic promotion for much of it, but they will see this as a missed opportunity given their total domination of their home leg.In contrast, it was a classic containing away performance from the Owls, who failed to muster a shot on target and showed little ambition to win the game.But the stalemate means they return to Hillsborough for the second leg on Wednesday favourites to reach the Wembley final for a second successive year.The pattern of the game was set early on and after a tense start, the Terriers began to take the ascendancy and had a chance to break the deadlock midway through the first half.Wednesday defender Glenn Loovens failed to clear Wells’ header across goal and the ball landed to Brown eight yards out, but he was falling backwards when he connected with his shot and it skimmed the crossbar and went over.That turned out to be the best moment for either side in the first half, as although Wagner’s men dominated the ball and territory, Wednesday’s resolute defending prevented them from creating anything remotely dangerous.Indeed, the opening 45 minutes ended with neither side managing a shot on target.The second period followed an identical pattern, with the hosts in control and finally they tested Westwood in the Wednesday goal 10 minutes after the restart.The dangerous Wells turned his marker and produced a chip that had Westwood back-peddling before tipping over from underneath his crossbar.It was all Huddersfield and Tommy Smith fired over before Wells had another chance when a loose ball fell kindly to him eight yards out but Westwood was out quickly to deflect it wide.There was a sense that Huddersfield really needed a goal to take to Hillsborough in midweek, but Wednesday were remaining defiant and continued to restrict their hosts, who threw everything forward in an attempt to break the deadlock.It was certainly not pretty from the Owls, who did not force Town goalkeeper Joel Coleman into a save, but it was effective as they are now just a home win away from a Wembley return.
Sensors now make it possible to capture touches on the body very precisely, even from multiple fingers. Researchers have successfully tested a new prototype sensor in four different applications. Provided by Saarland University “The human body offers a large surface that is easy to access, even without eye contact,” said Jürgen Steimle, a professor of computer science at Saarland University, explaining the researchers’ interest in this literal human-computer interface. The development was challenging because the such sensors could not measure touches precisely enough, nor could they capture them from multiple fingertips simultaneously. The prototype sensor, named Multi-Touch Skin, looks similar in structure to the touch displays that are well known from smartphones. Two stacked electrode layers, each arrayed in rows and columns, form a kind of coordinate system, at whose intersections electrical capacitance is constantly measured. Capacitance is reduced at the point where fingers touch the sensor, because the fingers conduct electricity and therefore allow the charge to drain away. These changes are captured at each point, and thus touches from multiple fingers can be detected. In order to find the optimal balance between conductivity, mechanical robustness and flexibility, the researchers evaluated different materials. Silver was chosen as the conductor, PVC plastic for the insulating material between the electrodes, and PET plastic for the substrate; the sensor could be printed using a household inkjet printer in less than a minute.”So that we could really use the sensors on all parts of the body, we had to free them from their rectangular shape. That was an important aspect,” explains Aditya Shekhar Nittala, who is doing his doctoral research in Jürgen Steimle’s group. The scientists therefore developed software for designers to create their own desired sensor shapes. In the program, the designer first draws the outer shape of the sensor, then outlines the area within this outer shape that is to be touch-sensitive. A special algorithm then calculates the layout that will optimally cover this defined area with touch-sensitive electrodes. Finally, the sensor is printed.The usefulness of this new freedom of form is demonstrated in one of the four test prototypes, each of which the scientists produced with their novel fabrication method. It was designed to fit a test participant’s right ear. The subject could swipe upward or downward in order to use it as a volume control. Swiping right or left changes the song being played, while touching with a flat finger stops the song.For the Saarbrücken scientists, Multi-Touch Skin is further proof that research into on-skin interfaces is worthwhile. In the future, they want to focus on providing even more advanced sensor design programs, and to develop sensors that capture multiple sensory modalities. Citation: Sensor stickers transform the human body into a multi-touch surface (2018, May 7) retrieved 18 July 2019 from https://phys.org/news/2018-05-sensor-stickers-human-body-multi-touch.html Mobile on-body devices can be precisely and discreetly controlled using a tiny sensor This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Saarbruecken computer scientists have developed novel skin sensors that allow mobile devices to be controlled from any point on the body. Credit: Saarland University Explore further