By Mark I. Marpet, Michael A. Sapienza (editors)
This specific booklet presents ten peer-reviewed papers which handle the newest international study touching on how a lot friction pedestrians require in the course of ambulation and the way to degree most sensible the friction on hand among the walkway floor and the shoe backside. themes comprise: biomechanics of ambulation, walkway-safety tribometry, and walkway-safety criteria improvement.
Read or Download Metrology of Pedestrian Locomotion and Slip Resistance (ASTM Special Technical Publication, 1424) PDF
Best industrial design books
In line with the FDA caliber process laws, brands needs to make sure that "device packaging and delivery bins are designed and built to guard the machine from alteration or harm throughout the accepted stipulations of processing, garage, dealing with, and distribution. As particular as this assertion is, the FDA doesn't offer directions for the way to accomplish their criteria.
Each day we engage with hundreds of thousands of patron items. We not just count on them to accomplish their capabilities properly, reliably, and successfully, but additionally to do it so seamlessly that we don’t even give it some thought. despite the fact that, with the various elements fascinated with shopper product layout, from the applying of human components and ergonomics rules to decreasing hazards of malfunction and the entire existence cycle price, good, the method simply turns out to get extra advanced.
Closed loops depict provide chains for which unique Equipement producer reintegrate their back items into their very own creation community. whereas the opposite logistics study has greatly addressed the technical points of product reintegration, only a few insights can be found on no matter if OEMs should still devote themselves to a closed-loop.
Content material: bankruptcy 1 layout for surroundings (DfE): thoughts, Practices, instructions, tools, and instruments (pages 1–24): Daniel P. Fitzgerald, Jeffrey W. Herrmann, Peter A. Sandborn, Linda C. Schmidt and Thornton H. GogollChapter 2 Product layout for Sustainability: a brand new review method and Case experiences (pages 25–65): I.
- RF Engineering for Wireless Networks: Hardware, Antennas, and Propagation (Communications Engineering)
- Failure Modes of Electronics
- Improvement of buildings' structural quality by new technologies: proceedings of the final conference of COST Action C12, 20-22 January, 2005, Innsbruck, Austria
- Inventory Management: Non-Classical Views (Industrial Innovation)
Extra info for Metrology of Pedestrian Locomotion and Slip Resistance (ASTM Special Technical Publication, 1424)
Surface. (2) With the further sliding, the heel contact was stabilized and striking time was also shortened. That is, progressive wear between two surfaces gradually changed the 46 METROLOGYOF PEDESTRIAN LOCOMOTION AND SLIP RESISTANCE surface conditions so that the contact area became wider and smoother. This means that heel contact time was shortened and a high level of matching between two surfaces was attained. (3) The heel toe-off time was also shortened with the continuous sliding so that the slope of each heel-strike angle became higher.
Standard shoes with rubber soles were supplied to all subjects to reduce COF variability between shoe sole and test-floor surfaces. Calculations of Dependent Measures Figure 2 illustrates typical slip parameters over time, starting at heel contact, which we defined as the instant when the vertical ground reaction force (GRF) exceeded 10N. To synchronize kinetic and kinematic variables, an LED was coupled to the vertical force output o f the force plates and when the force exceeded 10N the LED was triggered.
This instrument gave two separate signals that were proportional to the friction (horizontal) and normal (vertical) force components respectively. The two hydraulic cylinders were in a common circuit supplied by a pump that was driven by an electric motor. The force component signals and potentiometer voltage during a test were recorded on a desktop computer that continually calculated the H/V force ratio.. Test speed. 6 m/s. In a preliminary series of tests by Hoang et al. 6 m/s. 4 m/s. Heel strike angle.