Modified Low Power Binary to Excess Code Converter

Utilization of power is a major aspect in the design of integrated circuits. Since, adders are mostly employed in these circuits, we should design them effectively. Here, we propose an easy and effective method in decreasing the maximum consumption of power. Carry Select Adder is the one which is dependent on the design of two adders. We present a high performance low-power adder that is implemented. Also, here in Carry Select Adder, Binary Excess Code-1is replaced by Ripple Carry Adder. After analyzing the results, we can come to a conclusion that the architecture which is proposed will have better results in terms of consumption of power compared to conventional techniques.&nbsp

Domain knowledge specification for energy tuning

To overcome the challenges of energy consumption of HPC systems, the European Union Horizon 2020 READEX (Runtime Exploitation of Application Dynamism for Energy-efficient Exascale computing) project uses an online auto-tuning approach to improve energy efficiency of HPC applications. The READEX methodology pre-computes optimal system configurations at design-time, such as the CPU frequency, for instances of program regions and switches at runtime to the configuration given in the tuning model when the region is executed. READEX goes beyond previous approaches by exploiting dynamic changes of a region's characteristics by leveraging region and characteristic specific system configurations. While the tool suite supports an automatic approach, specifying domain knowledge such as the structure and characteristics of the application and application tuning parameters can significantly help to create a more refined tuning model. This paper presents the means available for an application expert to provide domain knowledge and presents tuning results for some benchmarks.Web of Science316art. no. E465

DISEÑO Y CONSTRUCCIÓN DE UN GUANTE TRADUCTOR DE LENGUAJE DE SEÑAS A MENSAJES DE AYUDA (DESIGN AND CONSTRUCTION OF A GLOVE TRANSLATOR FROM SIGN LANGUAGE TO MESSAGES FOR HELP)

ResumenEn el presente trabajo se diseñó y construyó un guante traductor de lenguaje de señas a mensajes de ayuda elementales. Este sistema tiene como finalidad utilizar un sistema embebido portátil capaz de mostrar al menos 10 mensajes en un LCD para pedir ayuda en tres diferentes idiomas mediante el uso del alfabeto de lenguaje de señas. Este desarrollo tecnológico se divide en 3 etapas: La adquisición de señales eléctricas, el procesamiento de señales y el despliegue de mensajes. Para la adquisición de señales se utilizaron cinco sensores de flexión colocados en cada uno de los dedos. Para el procesamiento de señales se empleó el microcontrolador PIC18f4550, el cual permite convertir la señal analógica proveniente de los sensores de flexión y almacenar las diferentes frases a utilizar. El despliegue de mensajes se realizó mediante un LCD de 2x16 líneas. Además, estos mensajes pueden ser mostrados en 3 distintos idiomas: español, inglés y alemán, así como también se tiene la posibilidad de reprogramar el sistema para diferentes escenarios, de acuerdo con las necesidades del usuario. Los resultados muestran que es posible desarrollar un guante traductor de lenguaje de señas a mensajes de ayuda a bajo costo y eficiente.Palabras Claves: Guante, Lenguaje de Señas, PIC18f4550. AbstractIn this work, the design and construction of a glove translator from sign language to messages for help was carried out. This system is intended to use a portable embedded system capable of displaying at least 10 messages on an LCD to ask for help in three different languages. This technological development is divided into 3 stages: acquisition signals, data processing and print to LCD. For the acquisition of signals, five flexion sensors placed on each of the fingers were used. For the signal processing, the PIC18f4550 microcontroller was used, which allows converting the analog signal from the flex sensors and storing the different phrases to be used. Finally, for the display of messages has been made using an LCD 2x16 lines. In addition, these messages can be displayed in 3 languages: Spanish, English and German; also, these messages can be programed for different cases. The results show that it is possible the construction of a glove translator form sing language to messages for help at low cost and efficient.  Keywords: Glove, Sign Language, PIC18f4550

Big Data and the United Nations Sustainable Development Goals (UN SDGs) at a Glance

open access articleThe launch of the United Nations (UN) 17 Sustainable Development Goals (SDGs) in 2015 was a historic event, uniting countries around the world around the shared agenda of sustainable development with a more balanced relationship between human beings and the planet. The SDGs affect or impact almost all aspects of life, as indeed does the technological revolution, empowered by Big Data and their related technologies. It is inevitable that these two significant domains and their integration will play central roles in achieving the 2030 Agenda. This research aims to provide a comprehensive overview of how these domains are currently interacting, by illustrating the impact of Big Data on sustainable development in the context of each of the 17 UN SDGs

Smart Sensor Technologies for IoT

The recent development in wireless networks and devices has led to novel services that will utilize wireless communication on a new level. Much effort and resources have been dedicated to establishing new communication networks that will support machine-to-machine communication and the Internet of Things (IoT). In these systems, various smart and sensory devices are deployed and connected, enabling large amounts of data to be streamed. Smart services represent new trends in mobile services, i.e., a completely new spectrum of context-aware, personalized, and intelligent services and applications. A variety of existing services utilize information about the position of the user or mobile device. The position of mobile devices is often achieved using the Global Navigation Satellite System (GNSS) chips that are integrated into all modern mobile devices (smartphones). However, GNSS is not always a reliable source of position estimates due to multipath propagation and signal blockage. Moreover, integrating GNSS chips into all devices might have a negative impact on the battery life of future IoT applications. Therefore, alternative solutions to position estimation should be investigated and implemented in IoT applications. This Special Issue, “Smart Sensor Technologies for IoT” aims to report on some of the recent research efforts on this increasingly important topic. The twelve accepted papers in this issue cover various aspects of Smart Sensor Technologies for IoT