A robot finger is developed for five-fingered robot hand having equal number of DOF to human hand. The robot hand is driven by a new method proposed by authors using ultrasonic motors and elastic elements. The method utilizes restoring force of elastic element as driving power for grasping an object, so that the hand can perform the soft and stable grasping motion with no power supply. In addit...

The purpose of this paper is twofold. On one hand, basics on switched circuits for designing a DC-DC converter are presented and, on the other hand, power electronics definitions associated with simple electrical networks are mentioned. In the analysis of these networks, it is necessary to take into account not only converters’ non-idealities but also how to minimize power losses. Since power l...

Preliminary communication The aim of this investigation is to analyse the effects of hand on electromagnetic (EM) absorption and antenna performances. The EM absorption is evaluated by using the specific absorption rate (SAR) in the human head and total absorbed power by the user in this paper. The antenna performance’s parameters comprising radiation efficiency, total efficiency, gain and band...

In this paper we describe different power management techniques aiming to reduce power consumption in computer systems. On one hand, static techniques, applied at design time, have been presented with a variety of simulation and measurement tools, targeting different levels of the system’s hardware and software components. On the other hand, dynamic power management techniques, applied at runti...

In a large sample of Swiss local party sections, it is found that the extensity of Email usage correlates with patterns of intraparty influence distribution. On the one hand, executive boards exert more power when they rely internally on electronic communication; on the other hand, vertical email traffic (between leadership and ordinary members).promotes small power shifts in favor of the party...

We examined the ability of two 2-year-old children with limb deficiency to demonstrate grasp and release while using the cable-operated voluntary opening hook-hand and the externally powered single-site myoelectric Cookie Crusher system. The Cookie Crusher circuit is an electronic package that causes the prosthetic hand to open in response to muscle contraction and closes (as if crushing a cook...

In the first chapter of his prizewinning autobiography, Always Running (1993), Luis Rodriguez—peace activist, poet, writer, and former gang member—tells a story about one of the first lessons he received about the politics of identity in this country. Having taken a walk to Will Rogers Park in Los Angeles with his mother and siblings, Rodriguez (who was born a US citizen) witnesses his Mexican ...

BACKGROUND The diagnosis and treatment of prostate cancer is a controversial topic. Until recently there has not been a reliable imaging mo-dality for identification of cancer within the prostate. New evidence suggests that multiparametric magngenetic resonance im-aging (MRI) has the potential to improve the diagnosis and treatment of prostate cancer. OBJECTIVE This article explains the poten...

In this paper we have discussed the trends undergoing in all the various steps involved in EMG (Electromyogram) based prosthetic hand development. In order to overcome some limitations of current prosthetic hands mainly related to the proper functionality and controllability, the prosthetic hand has been designed following a biomechatronic approach based on biologically inspired design solution...