OALib Journal
  OALib Journal is an all-in-one open access journal (ISSN Print: 2333-9705, ISSN Online: 2333-9721). It accepts a manuscript for the peer-review processing, typesetting, publication and then allocated to one of the 322 subject areas. The article processing charge for publishing in OALib journal is Only $99. For more details, please contact service@oalib.com. Submit now
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Dec 16, 2020Open    AccessArticle

Design and Research of Health Tester System Based on STM32

Zhaoqian Ma, Yan Zhi
In real life, we want to understand our own health status and prevent the risk of disease outbreaks. We need to monitor the physical signs in real time, store and analyze the data, and call the police in time if there is an emergency. According to this requirement, this article designed a multifunctional portable smart health tester based on STM32F407, with Cprtex-M4 32-bit high-performance STM32F407ZGT6 microcontroller as the control core, HP-6 heart rate and blood pressure detection module, LC...
Open Access Library J. Vol.7, 2020
Doi:10.4236/oalib.1106931


Sep 23, 2020Open    AccessArticle

Parallel Self-Timed Adder with Lookahead-Carry Generator

Mohammad Ashfak Habib
Parallel self-timed adder (PASTA) is a newly introduced asynchronous adder. It shows appreciable average-case performance without any special speedup circuitry or look-ahead schema, but its worst-case performance is almost similar to that of ripple carry adder. It is therefore an important research issue to find a technique to improve its worst-case performance without any significant compromise in its other performances. This paper investigates the possibility of such performance improvement of...
Open Access Library J. Vol.7, 2020
Doi:10.4236/oalib.1106799


Jul 28, 2020Open    AccessArticle

Adaptation of Smart Antenna with AODV Routing Protocol for Ad Hoc Wireless Networks

Mebratu Fana Bedasa, Asrat Sime Bedada, Wesenu Bekele Mulatu
In the recent years, Mobile Ad-Hoc Wireless Networks (MANET) have played a key role in communication system. It is a self-configured and infrastructure-less network. It is used in different application areas like disaster recovery operations, hospitals and agricultural sectors. However, there are a lot of problems that limit the performances of this network for significantly achieving its roles in different areas. To overcome these problems, this paper enhances the performances of MANET in wirel...
Open Access Library J. Vol.7, 2020
Doi:10.4236/oalib.1106504


Jul 28, 2020Open    AccessArticle

New Performance Optimization Approach for Cognitive Radio Energy Detection

Patrick Dany Bavoua Kenfack, Fabrice Kwefeu Mbakop, Thomas d’Aquin Biyindi
In this paper, we put forward a new method to deal with energy detection low performance in cognitive radio, especially for small values of signal-to-noise ratio. The method is based on a statistical discrimination of received samples in order to improve probability of detection for a given probability of false alarm. We describe how we have determined discrimination criteria with python pandas library, for a signal-to-noise ratio SNR of 0.5 and a number of samples Ns of 128, assuming Gaussian d...
Open Access Library J. Vol.7, 2020
Doi:10.4236/oalib.1106316


Mar 19, 2019Open    AccessArticle

Real-Time Monitoring for Data Greenhouse Based on Raspberry Pi Technology

Ibrahim EIkhier Hussein Arfeen, Abd Elrazig Awadelseed Edries Suliman
The greenhouse needs to control environmental parameters to obtain the ideal growth of the plant. The scopes of this paper are to design and im-plement system of real-time remote light intensity, temperature and hu-midity monitoring system for greenhouse based on raspberry Pi3 platforms, which enable the user to monitor acquisition data from the greenhouse. The design system, implemented using LabVIEW as platform software, has to
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Open Access Library J. Vol.6, 2019
Doi:10.4236/oalib.1105138


Dec 25, 2018Open    AccessArticle

Design of Library Management System

Chunchao Liu, Sheng Ma
The library management system runs on the DOS system, based on the C lan-guage as the main programming language and Visual C as the development environment. According to the characteristics of the system, we construct the development model and then build structural analysis, system function modules and system flow chart through the demand analysis of the system. Through the analysis of each function module, the definition and at
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Open Access Library J. Vol.5, 2018
Doi:10.4236/oalib.1104974


Apr 18, 2018Open    AccessArticle

Using a New Routing Metric in Paths Discovery Process for MAODV

Read Jabri, Saher Manaseer, Esra’a Mahmoud Alhenawi
The limited lifetime period of wireless nodes of Ad hoc networks due to their battery power, has been forming a significant issue and concern for researchers. To solve this previous related research has ignored low energy nodes regardless of its total residual energy without ignoring the importance of hop count value for selecting paths in forwarding decision. This paper aims at finding and proposing a new path selection metric th
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Open Access Library J. Vol.5, 2018
Doi:10.4236/oalib.1104425


Jan 29, 2018Open    AccessArticle

The Use of Biometric Attendance Recording System (BARS) and Its Impact on the Work Performance of Cabanatuan City Government Employees

Gladys Anne C. Villaroman, Anthony B. San Pedro, Khristopher M. Bacani, Erlinda R. Clerigo, Aron T. Hipos
Biometric technology as a means of identifying and verifying an individual’s characteristic is widely used in many aspects of peoples’ lives nowadays. In this regard, Local Government Unit (LGU) uses this technology to provide a more comprehensive system in monitoring employee attendance and how it may affect their performance. The study assesses the impact of the use about the Biometric Attendance Recor
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Open Access Library J. Vol.5, 2018
Doi:10.4236/oalib.1104273


Dec 22, 2017Open    AccessArticle

Tracking a Moving Objects Using Foreground Detector and Improved Morphological Filter

Diallo Mamadou Saidou
Mobile object detection is one of the most important steps in computer vision applications such as: medical analysis human-machine interface, robotics, traffic monitoring, and more. In this article, we apply the Gaussian mixing model which is established on the background subtraction. A smoothing method was used for the pre-processing step and a morphological filter was applied to remove unwanted pixels from the backgro
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Open Access Library J. Vol.4, 2017
Doi:10.4236/oalib.1104152


Nov 10, 2017Open    AccessArticle

Audio Noise Reduction Using Low Pass Filters

Ali Osman Mohammed Salih
The study aimed to filter and remove noise from audio, and in this study researcher followed the descriptive analytical method. The study sample consisted of an audio file and has been save Audio of on a formula (WAV), and the study used matlab 7.10.0 to read sound and design low pass filter, then insert the audio signal with the noise signal into the filter and output a signal audio without noise. The research
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Open Access Library J. Vol.4, 2017
Doi:10.4236/oalib.1103709


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