Samsung Electronics Co., Ltd. has been developing humanoid robots for years. Roboray, the latest developed humanoid robot in Fig. 1, has many different characteristics from the previous robots, e.g. Mahru series [1]. The main difference is that Roboray can be torque-controlled with torque sensors at all joints in the lower limbs. There exist some released biped robots which have torque/force co...

In this paper we present an innovative approach to asynchronous information coordination in heterogenous, distributed and dynamic environments. Our goal is to support real-time collaboration and coordination among distributed, heterogeneous (wired and wireless) clients where the number of collaborating clients, their locations, capabilities and interests are dynamic. Our approach applies the “p...

In a fully dynamic web services implementation, business processes are supported by allocating the underlying information processing tasks to many inter-operating service modules, each of which would be procured over the Internet from an on-line market for web services. In this research we propose to investigate the web services adoption phenomena from three different perspectives viz. business...

A new dual dynamic node hybrid flip-flop (DDFF) and a novel embedded logic module (DDFF-ELM) based on DDFF are introducing in this paper. The proposed designs eliminate the large capacitance present in the pre-charge node of several state-of-the-art designs by following a split dynamic node structure to separately drive the output pull-up and pulldown transistors. The aim of the DDFF-ELM is to ...

This paper describes an interactive dynamic simulator for virtual environments which allows user interaction via a haptic interface. The interactive simulation is performed in our testbed dynamic simulator I-GMS, which has been developed in an object-oriented framework for simulating motions of free bodies and complex linkages such as those needed for robotic systems or human body simulation. U...

Under high dynamic situation, the typical GPS carrier tracking loop cannot guarantee a reliable tracking. In this paper an improved high dynamic carrier tracking method based on unscented Kalman filter is presented, a rapid frequency traction method is adopted to ensure that the filter can convergence quickly, and joining a carrier amplitude estimation method. The U.S Jet Propulsion Laboratory ...

This paper reports results from an investigation into the suction caissons failure mechanisms under vertical pull-out loads. An insight to the failure mechanisms of suction caissons paves the path for developing analytical solutions to their pull-out capacity. The numerical models of suction caissons have first been calibrated by and verified against several experimental data from other researc...

This article analyses the push and pull factors that bring visitors to the Iranian national parks. The study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. Survey conducted in Boujagh National Park, an area of 3177 hectares located in the north of the Iran, produced 400 questionnaires. The factor analysis identified four push ...