ÉAK-2 computing device for automatic mass electrocardiographic examinations

The purpose of these studies is to develop an effective structure and internal functional blocks of a digital computing device – an adder, that performs addition and subtraction operations on floating- point numbers presented in IEEE Std 754TM-2008 format. To improve the characteristics of the adder, the circuit uses conveying, that is, division into levels, each of which performs a specific action on numbers. This allows you to perform addition / subtraction operations on several numbers at the same time, which increas- es the performance of calculations, and also makes the adder suitable for use in modern synchronous cir- cuits. Each block of the conveyor structure of the adder on FPGA is synthesized as a separate project of a digital functional unit, and thus, the overall task is divided into separate subtasks, which facilitates experi- mental testing and phased debugging of the entire device. Experimental studies were performed using EDA Quartus II. The developed circuit was modeled on FPGAs of the Stratix III and Cyclone III family. An ana- logue of the developed circuit was a functionally similar device from Altera. A comparative analysis is made and reasoned conclusions are drawn that the performance improvement is achieved due to the conveyor structure of the adder. Implementation of arithmetic over the floating-point numbers on programmable logic integrated cir- cuits, in particular on FPGA, has such advantages as flexibility of use and low production costs, and also provides the opportunity to solve problems for which there are no ready-made solutions in the form of stand- ard devices presented on the market. The developed adder has a wide scope, since most modern computing devices need to process floating-point numbers. The proposed conveyor model of the adder is quite simple to implement on the FPGA and can be an alternative to using built-in multipliers and processor cores in cases where the complex functionality of these devices is redundant for a specific task.

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Methods and algorithms for solving inverse economic problems using a modified inverse computing device

10.31483/a-10224 ◽

2020 ◽

Author(s):

Ekaterina Borisovna Gribanova

Keyword(s):

Computing Device ◽

Economic Problems

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Healthcare apps on smartphones available in Brazil: a preliminary classification (Preprint)

10.2196/preprints.20795 ◽

2020 ◽

Author(s):

André De Faria Pereira Neto ◽

Leticia Barbosa ◽

Rodolfo Paolucci

Keyword(s):

Health Promotion ◽

Disease Prevention ◽

Digital Health ◽

Disease Process ◽

World Health ◽

Computing Device ◽

Care Treatment ◽

Wide Range ◽

The World ◽

Health Applications

UNSTRUCTURED Billions of people in the world own a smartphone. It is a low-cost, portable computing device with countless features, among which applications stand out, which are programs or software developed to meet a specific goal. A wide range of applications available ranging from entertainment and personal organization to work and education is available currently. It is a vast and profitable market. Health applications have been a means of intervention for different areas, including chronic diseases, epidemics, and health emergencies. A recently published paper in the journal with the highest impact factor in Digital Health (“Journal of Medical Internet Research”) proposes a classification of health applications. This study performs a critical analysis of this organization and presents other sort criteria. This paper also presents and analyzes the “Meu Info Saúde” (“My Health Info”) app – a pioneering government initiative focused on primary care launched by the Oswaldo Cruz Foundation. The application classification proposal that will be presented builds on the intervention strategies in the health-disease process, namely: “Health Promotion”, “Disease Prevention” and “Care, Treatment and Rehabilitation”, as defined by official documents such as the World Health Organization and the Centers for Disease Control and Prevention. Most applications present in the sample are of private and foreign origin, free to download, but with a display of ads or the sale of products and services. The sampled applications were classified as “Health Promotion”, and some applications have also been categorized as “Disease Prevention” or “Care, Treatment or Rehabilitation” because they have multiple functionalities. The applications identified as “Health Promotion” focused only on individuals’ lifestyle and their increased autonomy and self-care management capacity. From this perspective, the apps analyzed in this paper differ from the “Meu Info-Saúde” application developed at Fiocruz.

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An Incentive-based Mechanism for Volunteer Computing Using Blockchain

ACM Transactions on Internet Technology ◽

10.1145/3419104 ◽

2021 ◽

Vol 21 (4) ◽

pp. 1-22

Author(s):

Ismaeel Al Ridhawi ◽

Moayad Aloqaily ◽

Yaser Jararweh

Keyword(s):

Resource Sharing ◽

Secure Communication ◽

Service Providers ◽

Volunteer Computing ◽

Resource Usage ◽

Content Filtering ◽

Computing Device ◽

Blockchain Technology ◽

Smart Agriculture ◽

Industrial Solutions

The rise of fast communication media both at the core and at the edge has resulted in unprecedented numbers of sophisticated and intelligent wireless IoT devices. Tactile Internet has enabled the interaction between humans and machines within their environment to achieve revolutionized solutions both on the move and in real-time. Many applications such as intelligent autonomous self-driving, smart agriculture and industrial solutions, and self-learning multimedia content filtering and sharing have become attainable through cooperative, distributed, and decentralized systems, namely, volunteer computing. This article introduces a blockchain-enabled resource sharing and service composition solution through volunteer computing. Device resource, computing, and intelligence capabilities are advertised in the environment to be made discoverable and available for sharing with the aid of blockchain technology. Incentives in the form of on-demand service availability are given to resource and service providers to ensure fair and balanced cooperative resource usage. Blockchains are formed whenever a service request is initiated with the aid of fog and mobile edge computing (MEC) devices to ensure secure communication and service delivery for the participants. Using both volunteer computing techniques and tactile internet architectures, we devise a fast and reliable service provisioning framework that relies on a reinforcement learning technique. Simulation results show that the proposed solution can achieve high reward distribution, increased number of blockchain formations, reduced delays, and balanced resource usage among participants, under the premise of high IoT device availability.

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Novel Numerical Spiking Neural P Systems with a Variable Consumption Strategy

Processes ◽

10.3390/pr9030549 ◽

2021 ◽

Vol 9 (3) ◽

pp. 549

Author(s):

Xiu Yin ◽

Xiyu Liu ◽

Minghe Sun ◽

Qianqian Ren

Keyword(s):

Production Functions ◽

P Systems ◽

P System ◽

Computing Device ◽

Spiking Neural P Systems ◽

Distributed Parallel Computing ◽

Production Values ◽

Novel Variant ◽

Turing Universality ◽

Variable Consumption

A novel variant of NSN P systems, called numerical spiking neural P systems with a variable consumption strategy (NSNVC P systems), is proposed. Like the spiking rules consuming spikes in spiking neural P systems, NSNVC P systems introduce a variable consumption strategy by modifying the form of the production functions used in NSN P systems. Similar to the delay feature of the spiking rules, NSNVC P systems introduce a postponement feature into the production functions. The execution of the production functions in NSNVC P systems is controlled by two, i.e., polarization and threshold, conditions. Multiple synaptic channels are used to transmit the charges and the production values in NSNVC P systems. The proposed NSNVC P systems are a type of distributed parallel computing models with a directed graphical structure. The Turing universality of the proposed NSNVC P systems is proved as number generating/accepting devices. Detailed descriptions are provided for NSNVC P systems as number generating/accepting devices. In addition, a universal NSNVC P system with 66 neurons is constructed as a function computing device.

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AIR PRESSURE CONTROLLED MASS MEASUREMENT SYSTEM

International Journal of Modern Physics Conference Series ◽

10.1142/s2010194513600021 ◽

2013 ◽

Vol 24 ◽

pp. 1360002

Author(s):

RUILIN ZHONG ◽

JIAN WANG ◽

CHANGQING CAI ◽

HONG YAO ◽

JIN'AN DING ◽

...

Keyword(s):

Measurement System ◽

Pressure Range ◽

Mass Measurement ◽

Air Pressure ◽

Air Density ◽

Airtight Chamber ◽

And Control ◽

Automatic Mass ◽

Pressure Controlled ◽

Control Part

Mass measurement is influenced by air pressure, temperature, humidity and other facts. In order to reduce the influence, mass laboratory of National Institute of Metrology, China has developed an air pressure controlled mass measurement system. In this system, an automatic mass comparator is installed in an airtight chamber. The Chamber is equipped with a pressure controller and associate valves, thus the air pressure can be changed and stabilized to the pre-set value, the preferred pressure range is from 200 hPa to 1100 hPa. In order to keep the environment inside the chamber stable, the display and control part of the mass comparator are moved outside the chamber, and connected to the mass comparator by feed-throughs. Also a lifting device is designed for this system which can easily lift up the upper part of the chamber, thus weights can be easily put inside the mass comparator. The whole system is put on a marble platform, and the temperature and humidity of the laboratory is very stable. The temperature, humidity, and carbon dioxide content inside the chamber are measured in real time and can be used to get air density. Mass measurement cycle from 1100 hPa to 200 hPa and back to 1100 hPa shows the effective of the system.

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FASTRUN - A High Performance Computing Device for Molecular Mechanics Using a Pipeline Architecture

IEEE Transactions on Nuclear Science ◽

10.1109/tns.1986.4337238 ◽

1986 ◽

Vol 33 (1) ◽

pp. 870-874

Author(s):

D. G. Dimmler ◽

R. Fine ◽

C. Levinthal

Keyword(s):

High Performance Computing ◽

Molecular Mechanics ◽

High Performance ◽

Pipeline Architecture ◽

Computing Device ◽

Performance Computing

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A Mathematical Method for Determining the Parameters of Functional Dependencies Using Multiscale Probability Distribution Functions

Mathematics ◽

10.3390/math9101085 ◽

2021 ◽

Vol 9 (10) ◽

pp. 1085

Author(s):

Ilya E. Tarasov

Keyword(s):

Experimental Data ◽

Probability Distribution ◽

Integrated Circuits ◽

Distribution Functions ◽

Independent Parameter ◽

Functional Dependencies ◽

Computing Device ◽

System On A Chip ◽

Error Probability Distribution ◽

Special Case

This article discusses the application of the method of approximation of experimental data by functional dependencies, which uses a probabilistic assessment of the deviation of the assumed dependence from experimental data. The application of this method involves the introduction of an independent parameter “scale of the error probability distribution function” and allows one to synthesize the deviation functions, forming spaces with a nonlinear metric, based on the existing assumptions about the sources of errors and noise. The existing method of regression analysis can be obtained from the considered method as a special case. The article examines examples of analysis of experimental data and shows the high resistance of the method to the appearance of single outliers in the sample under study. Since the introduction of an independent parameter increases the number of computations, for the practical application of the method in measuring and information systems, the architecture of a specialized computing device of the “system on a chip” class and practical approaches to its implementation based on programmable logic integrated circuits are considered.

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Azolla Biomass as Liquid Biofertilizer to Improve Yield and Productivity of Paddy Plant Using Efficient Monitoring System

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1025.104 ◽

2021 ◽

Vol 1025 ◽

pp. 104-109

Author(s):

Nur Husnina Iffah Bakar ◽

Noor Suhana Adzahar ◽

Thong Chuan Lee ◽

Rama Yusvana ◽

Raha Ahmad Raus

Keyword(s):

Monitoring System ◽

Inductively Coupled Plasma ◽

Initial Step ◽

Quality Analysis ◽

High Yield ◽

Automated Control ◽

Computing Device ◽

Efficient System ◽

Inductively Coupled ◽

Software Monitoring

Azolla Filliculoides has been utilized as biofertilizer to increase productivity and yield of paddy. Azolla was used as a good source of nutrient to the paddy plant. In this study, we investigated the growth and productivity of paddy plant supplemented with liquid Azolla biofertilizer. The preparation of Azolla was monitored under several parameters such as pH, dissolved oxygen, temperature, and salinity in an aquaponics system. Water quality analysis of the aquaponic system was monitored by using the Arduino system which the customized design that consists of a microcontroller to record the parameters directly to the computing device in a single optimum and efficient system. The nutrient composition of liquid Azolla biofertilizer was analyzed by using Inductively Coupled Plasma Mass Spectrometry (ICP/MS) and CHNS elemental analysers. hows that liquid Azolla contents 0.958% nitrogen, 15.5 ppm phosphorus and 159.8 ppm potassium. After four months, the yield of paddy on Azolla was 149.12 kg/he with the productivity of 63.157 kg/he/year. This application helped to an efficient monitoring system for measure high yield and productivity of biofertilizer by Arduino software monitoring. This study can act as an initial step for the web-based automated control and monitoring of the food production system.

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