From the constitution of computation, the main subjects of computer science and technology have been summarized. Meanwhile, the reasons why the developments of software technologies have pushed the computational scien...
详细信息
This paper proposes a framework of a distributed kinematics resolution model which can be applied to various types of multi link robot structures. In the framework, hardware modules which consists of joints and links ...
详细信息
This paper proposes a framework of a distributed kinematics resolution model which can be applied to various types of multi link robot structures. In the framework, hardware modules which consists of joints and links are defined as joint components of robotic systems, then kinematics resolution models are composed of a set of the local kinematics modules (LKMs) which are software module to compute the localized direct and inverse kinematics corresponding to each joint component. Kinematics computation throughout the robotic systems is resolved by the localized kinematics calculation of LKMs for an end effecter to a target position and an information exchange among LKMs. The proposed framework has been applied to case studies of the inverse kinematics problems of 7 degree of freedom multi link robot manipulator. Case studies have confirmed the proposed model to be able to provide a dexterous framework of kinematics resolution systems for modular type robotic systems and various types of robotic systems.
With wide adoption of chip multiprocessors (CMPs) in modern computers, there is an increasing demand for large capacity main memory systems. The emerging PCM (Phase Change Memory) technology has unique power and scala...
详细信息
Computational fluid dynamics (CFD) simulations are used to simulate stacks of different sizes, to understand nonlinear effects that arise in scaleout of microchemical systems. As an example process, syngas production ...
详细信息
Computational fluid dynamics (CFD) simulations are used to simulate stacks of different sizes, to understand nonlinear effects that arise in scaleout of microchemical systems. As an example process, syngas production from methane is studied using a multifunctional, parallel-plate reactor with alternating combustion and steam reforming channels. A scale-out strategy is proposed that creates larger stacks from a base unit. Stacks are evaluated in terms of efficiency, maximum wall temperature, and stability under external heat loss for both high and moderate wall thermal conductivities. We find that smaller stacks are unstable under laboratory heat-loss conditions. Stacks with high wall thermal conductivities are more stable than those with moderate wall conductivities under our conditions. At high heat-loss coefficients, significant transverse thermal gradients exist between interior and edge channels of the stacks that result in a significant loss of efficiency. A transition from all ignited to some ignited and extinguished and finally to all extinguished channels is discovered as criticality is approached in moderate size stacks. Microsystems provide 1-3 orders of magnitude larger volumetric and gravimetric throughputs than conventional technology, irrespective of model uncertainty, and such intensification is central to portable and distributed processing. They exhibit energy efficiency that is a strong function of size and heat loss but can outperform conventional processing under many conditions. However, they result in higher cost per unit syngas volume unless system optimization is performed.
The content dissemination among mobile users can be solved by self-facilitated mobile ad hoc network s (MANET) in an infrastructure environment. But the devices used to make up the mobile ad hoc networks usually have ...
详细信息
Nowadays, computing resources have taken tens percent of utilization at busy time for increasing computing power. However, the virtual machine (VM) technology is effective to the use of computing resources. Besides, t...
详细信息
Due to the fact that softwaresystems cannot be tested exhaustively, softwaresystems must cope with residual defects at run-time. Local recovery is an approach for recovering from errors, in which only the defective ...
详细信息
Employing a parallel crawler as a multi processes crawler causes different issues of concern in comparison to applying a single-process crawler. These issues impact on achieving the results with higher or even the sam...
详细信息
In this paper, we describe a design space exploration (DSE) tool for domain specific reconfigurable computing where the needs of the applications drive the construction of the device architecture. The tool has been de...
详细信息
This paper compares parallel and distributed implementations of an iterative, Gibbs sampling, machine learning algorithm. distributed implementations run under Hadoop on facility computing clouds. The probabilistic mo...
详细信息
暂无评论