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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Apr 23, 2023Open    Access

Design of a Real-Time Monitoring System for the Temperature of Nixing Pottery Kilns

Jianzhong Yang, Ximing Yang, Xinggang Zhang, Huirong Chen, Yinwei He
Real-time monitoring of temperature is required during the calcination process of Nixing pottery. In order to solve the problem of unattended temperature checking, this thesis focuses on the use of the STC89C52 microcontroller as the core of the hardware, with the DS18B20 temperature sensor for real-time temperature collection, through the mobile phone APP to simulate the real-time monitoring of the pottery kiln temperature, and to make the corresponding historical data line graph. When the coll...
Open Access Library J.   Vol.10, 2023

Mar 27, 2023Open    Access

Study on the Design of Multi-Layer Absorbing Materials by Genetic Algorithm

Tongxing Li, Yongfeng Zhang, Xiaoyu Tan
Multilayer medium is one of the most studied objects in an electromagnetic field. In this paper, the problem of genetic algorithm design for multilayer microwave absorbing materials is studied. By using the genetic algorithm, this paper minimizes the reflection coefficient of electromagnetic waves, which is the objective function. Genetic algorithm is used to solve the problem of optimizing the configuration of absorbing materials. Finally, the simulation results are implemented and confirm the ...
Open Access Library J.   Vol.10, 2023

Feb 23, 2023Open    Access

What Is the Meaning of Imaginery Number with Nucleotide Bases as Regards to Quantum Perspective Model?

Tahir Olmez
This paper attempts to express imaginary number with chemical nucleotide bases (A T, G, C and U) as regards to Quantum Perspective Model. At first, the exact Euler’s formula was written just like as in here “exi = cos(x) i·sin(x)”. Secondly, twin pi is substituted for x(x = 2Π). Thirdly, the result of this process equals to “e2iπ = cos(2Π) i·sin(2Π)”. Fourthly, sort up this formula just like as in here: “e2iπ = 1 i0” = 1. Fifthly, multiply both sides of th...
Open Access Library J.   Vol.10, 2023

Feb 02, 2023Open    Access

Reducing Losses in the Sudanese Power Transmission System 66 kV Sector

Ekram Osman, Mujahid Ahmed, Sufyan Al-Sadiq Suleiman Ibrahim, Helal Qahtan
Electricity is transmitted from the generating stations to the distribution center and consumers through transmission lines, to ensure that energy reaches consumers in the required form and quality, and losses along transmission lines must be minimized. In this project, losses were analyzed and reduced in the East network sector (66 kV) using a modern compensator Static VAR (Volt-Ampere Reactive) Compensator (SVC) and electrical network simulation in the NEPLAN program to validate its validity. ...
Open Access Library J.   Vol.10, 2023

Nov 11, 2022Open    Access

Design of a Preamplifier for Silicon Detector Redout Experiment

Nan Wang, Chuanhao Hu, Tao Yue, Chengyang Li, Guoqiang Zeng
An experimental circuit design method of charge sensitive preamplifier for signal readout of silicon detector is introduced. Firstly, the circuit principle simulation and circuit parameter optimization are realized based on Multisim software. Secondly, the circuit is designed with junction field effect transistors (JFETs) as input stage, constant current source as load and integrated operational amplifier as amplifier stage. Finally, the circuit is applied to match silicon semiconductor detector...
Open Access Library J.   Vol.9, 2022

Sep 23, 2022Open    Access

Minimizing Transmission Line Power Losses in Port Harcourt, Southern Nigeria: An Optimization-Based Approach

Ngang Bassey Ngang, Fidelis Ikechukwu Onah, Anthony Lordson Amana, Anthony N. Nzeako
In Nigeria, frequent power outages can be attributed to under frequency, low power factor, overcurrent, overvoltage, and under voltage causes. Improving the quality of electric power supply means improving voltage transients and frequency instability. This epileptic power source could be improved estimating the following parameters: Line losses, the phase values of the voltages at load buses, the real and reactive power of slack buses; optimizing these values to determine active power loss reduc...
Open Access Library J.   Vol.9, 2022

Jul 15, 2022Open    Access

Piezoelectric Model of Water Drop Low Voltage Harvester

Azrul Mahfurdz, Saifuddin Semail, Sunardi Sasmowiyono
This research proposes the low voltage measurement from a piezoelectric transducer. The vibration source is acquired from water drop impact for different distances. A strip chart was used to record voltage signal from piezoelectric at a 100-Hz sampling rate. The voltage for each sample was saved in excel format and analysed in MATLAB software. The voltage generated has been compared with and analysed for three types of piezoelectric transducers from polyvinylidene fluoride type (PVDF). Based on ...
Open Access Library J.   Vol.9, 2022

Apr 13, 2022Open    Access

One-Dimensional Convolutional Neural Network Based Bearing Fault Diagnosis

Jiaxue Chen, Xiaoqi Yin, Chenxue Li, Hang Yang, Li Hong
Fault diagnosis based on time-domain signals has become mainstream in recent years. Traditional methods require signal processing to extract fault features before feeding them into a neural network for diagnostic classification, which is a cumbersome process. This paper proposes an adaptive fault diagnosis model based on a one-dimensional convolutional neural network, and the structure and parameters of the model are analyzed and designed in detail. The segmented pre-processed vibration signal i...
Open Access Library J.   Vol.9, 2022

Mar 22, 2022Open    Access

Optimal Speed Control and Regulation of Salient Pole Hydro Turbine Generators in Nigeria: Artificial Intelligence Approach

Ngang Bassey Ngang, Ezekiel Nnamere Aneke
This research is being carried out to improve the quality of power supply caused by voltage fluctuations due to unstable hydro turbine generator speeds. A solution based on Fuzzy Logic Control was created to eliminate the problem of epileptic power supply in some parts of Nigeria, which was caused by the slow rotation of the hydro turbines. This is accomplished by creating a membership function to analyze the causes of slow turbine rotation, a membership function to increase turbine rotation, a ...
Open Access Library J.   Vol.9, 2022

May 19, 2021Open    Access

Multi-Channel Low-Noise Analog Front Design

Bin Bai
With the development of digital nuclear pulse processing technology, the requirements for the analog front-end circuit of digital energy spectrometers are getting higher and higher. Not only need to reduce the noise caused by the device as much as possible, but also need to meet the needs of multi-channel data acquisition. This article based on VGA (Variable Gain Amplifier) has designed a multi-channel low-noise analog front-end circuit to meet the functional requirements of the energy spectrome...
Open Access Library J.   Vol.8, 2021


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