At the EPFL, we have developed a force-feedback device and control architecture for high-end research and industrial applications. The Delta Haptic Device (DHD) consists of a 6 degrees-of-freedom (DOF) mecatronic device driven by a PC. Several experiments have been carried out in the fields of manipulation and simulation to assess the dramatic improvement haptic information brings to manipulati...

Freshwater fisheries are central to food security in China and this remains one of the most important priorities for the growing human population. Thus, combining ecosystem restoration with economics is pivotal in setting successful conservation in China. Here, we have developed a practical management model that combines fishery improvement with conservation. For six years, a ban on fertilizer ...

Ecosystem engineering research has recently demonstrated the fundamental importance of non-trophic interactions for food-web structure. Particularly, by creating benign conditions in stressful environments, ecosystem engineers create hot beds of elevated levels of recruitment, growth, and survival of associated organisms; this should fuel food webs and promote production on the ecosystem scale....

A novel triaxial force sensing device developed by the authors with a MEMS sensor as core component is mounted on a subnanometric resolution nanomanipulator having three degrees of freedom (DOF). This sensorized device allows measuring forces on the nanomanipulator tip in the range of 0–3 N for normal and ±50 mN for tangential forces with a resolution of 11 bits. Together with a haptic input de...

Abstract Zooplankton is a good indicator of water quality state. Analysing the species composition and abundance, it possible to assess condition body predict direction changes. The aim study was analyse zooplankton in shallow urban lake, which restoration limited one method, i.e. wind-aeration. results were compared with earlier data obtained during sustainable (three methods: wind-aeration, p...

background: spermatogonial stem cells (sscs) are infrequentself-renewing cells among the type a spermatogoniawithin the seminiferous tubules and are the basis of spermatogenesisin mammalian testis. an adequate number of sscs is aprimary requirement for the study of their behavior, regulation, andfurther biomanipulation. objectives: in this paper, we studiedthe development of the primary co-cult...