The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Complex permeability spectra of Permendur and Cobalt flake composite materials in the microwave frequency range has been studied to reveal the demagnetizing field effect. The permeability spectrum of ferromagnetic metal composites depends on the shape and the alignment direction of embedded particles; demagnetizing field induced in the particles affects the magnetic permeability and the magnetic resonance...
Scanning Thermal Microscopy (SThM) and micro-thermal analysis allow the study of thermal phenomena at micro- and nanoscale. We present a novel scanning resistive probe aimed for thermal imaging and localized thermal analysis. The probe features an AFM cantilever with a sharp pyramidal tip. Metal nanowires are integrated at the inner edges of the pyramidal tip forming an electrical cross-junction at...
The model of Open Innovation is the best choice to the firms that can not afford research and development (R&D) costs but intent continues playing the innovation game. This model offers to any firm the companies spread worldwide and in all research fields as possible partners in R&D. However, the possible partnership can not be restricted in the manager's know-who. The patent documents can...
The goal of this work is develop and test of a new software archetype, to aid the competence management process in Post-Graduate of Production Engineering Courses. This system will be designed using JADE Agent Framework, to read and analyze XML data. Those technologies have been used to build an innovative environment for software building. The research methodology used in this scientific work is...
It is necessary to estimate the initial rotor position accurately when the sensorless control is applied to brushless DC motor. First, we explain the estimation method of initial rotor position. Next, we investigate the influence of the amplitude and frequency of high-frequency input voltage on the estimation accuracy and obtain the optimal values. The brushless DC motor can start smoothly by using...
Full-scale IT introduction in the near future is expected to increase information flows vastly and this information explosion will also increase the number of IT devices in use, positioning the energy consumption of IT devices themselves as a key issue. Most of conventional measures to treat energy consumption handle servers and network devices separately. This paper first identifies that the network...
In all-IP networks where all types of services are integrated using IP technology, it is highly likely that traffic congestion in one service causes congestion in other services, or that abnormal traffic in one service degrades the quality of other services. This paper proposes a flexible reallocation of both computing and network resource between services, in order to reduce the chance of congestion...
A evaluation method of anisotropic absorber panel is discussed. Anisotropic absorber panel have the axis of anisotropy. Reflection coefficient at the principal axis shows maximum or minimum value. In order to evaluate the principal axis of anisotropic absorber panel, we proposed diagonalization method. By diagonalizing reflection coefficient matrix, reflection coefficients at the principal axis and...
The use of RFID tag which identifies a thing and an object will be expanded with progress of ubiquitous society, and it is supposed that the various RFID-based services will be provided in the near future. Therefore, it is necessary to study how to construct RFID network system as a social infrastructure like the Internet. This paper proposes the virtualization method of RFID tag network system to...
The logistics and supply chain management - SCM concepts in Brazil are not well developed yet; in many companies these concepts are frequently confused. Automotive sector, even though, presents considerable initiatives in logistics and SCM and, deserves to be noticeable. The main objective of this research was to verify the level of knowledge and formalization of logistics of the Brazilian automakers...
We have studied the complex permeability spectra of yttrium iron garnet (YIG) under external magnetic field and permalloy composite materials, in which the heat treated peramalloy particles were embedded, in the microwave region to realize the negative permeability which is produced by the magnetic resonance. In this report, we discuss the characteristics of the negative permeability of these materials...
All-IP networks, including next generation networks (NGNs), in which IP technology is used to integrate all services, are being studied or introduced in earnest worldwide. To support any services in all-IP networks, it is necessary to allocate both the computing resource (processing ability) and the network resource (bandwidth) simultaneously. This paper discusses congestion control schemes for all-IP...
Streaming media distribution services has been spreading rapidly, in which users view movies and music programs delivered over IP-based networks. In IP-based networks where resources are shared but cannot be reserved, it is difficult to prevent temporary congestion from occurring. Therefore, when temporary network congestion occurs, some packets will be discarded, resulting in the deterioration in...
In all-IP networks including NGN, both computing and network resources are required to be allocated simultaneously to each service request. The authors proposed optimal joint resource allocation methods for multiple resource types. Although those methods can achieve an efficient use of resources, it may result in an dasiaunfairpsila use of resources in which resources may be monopolized by a specific...
Fabricated in 56nm CMOS technology, an 8Gb multi-level NAND Flash memory occupies 98.8mm2, with a memory cell size of 0.0075mum/b. The 10MB/s programming and 93ms block copy are also realized by introducing 8kB page, noise-cancellation circuits, external page copy and the dual VDD scheme enabling efficient use of 1MB blocks
The data production for the CDF experiment is conducted on a large Linux PC farm designed to meet the needs of data collection at a maximum rate of 40 MByte/sec. We present two data production models that exploits advances in computing and communication technology. The first production farm is a centralized system that has achieved a stable data processing rate of approximately 2 TByte per day. The...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.