Empirical Research Press Ltd., United Kingdom, 2022
This work proposed a multi-attribute optimization technique for identification the equivalent cir... more This work proposed a multi-attribute optimization technique for identification the equivalent circuit parameters of a three-phase induction motor from the name plate data. A fitness function was obtained and compared with the computed steadystate performance of the exact equivalent circuit at prospective parameters set with rated manufacturer data. A biologically inspired algorithm called Bacterial Foraging Algorithm (BFA) was used in the optimization. The feasibility of the BFA optimization technique was tested and examined on a motor of rating 5 horsepower (hp). The performance of the BFA optimization scheme was tested by simulation and real-time experiments under challenging load variations. Simulation results demonstrate the ability the BFA to produce better results with less error values and good convergence characteristics.
Empirical Research Press Ltd., United Kingdom, 2022
This paper examined the viability of using agricultural waste materials as coarse aggregate in th... more This paper examined the viability of using agricultural waste materials as coarse aggregate in three-layered concrete. Concrete layers included crushed stone, and coarse aggregate replacements of periwinkle shell, and clamshell. For each sample type, the layer depth, and mix ratio varied. The physical and mechanical properties of the concrete beams and cube samples were then determined. Test results showed that while the bending capacity, shear resistance, and tensile strength can be improved by employing the configurations of beam PC-3 and PC-5, other mechanical properties like compression strength cannot be improved. Clamshell and Periwinkle shells have many environmental benefits that make them suitable alternative aggregates in construction.
Empirical Research Press Ltd., United Kingdom, 2022
This paper presents a study of a single-phase cascaded H-bridge multilevel converter-based Distri... more This paper presents a study of a single-phase cascaded H-bridge multilevel converter-based Distribution Static Synchronous Compensator (D-STATCOM) with active harmonic filtering capability. For the proper operation of the proposed D-STATCOM, a constant voltage is maintained at its DC bus link using a proportional and integral (PI) controller. Based on instantaneous current errors, gate pulses for controlling duty cycles of the D-STATCOM operation are generated using the hysteresis current control (HCC) technique. The proposed D-STATCOM was modeled and simulated in MATLAB. Simulation results show that the proposed method effectively compensates for reactive power and mitigates current harmonics. The proposed method offers structural simplicity and efficiency without complex calculations.
Empirical Research Press Ltd., United Kingdom, 2022
Results of analysis carried out on data of Covid19, in Tabasco State, are presented, from March 2... more Results of analysis carried out on data of Covid19, in Tabasco State, are presented, from March 2020 to February 2022. The procedure named 7 day´s moving average was applied to smooth the original graph and, in this way, analyze the data more easily. Fast Fourier transform (FFT) was applied to find the frequency that allows us to detect the period (in weeks) of generation of greater Covid19 infections. FFT allows us to determine that for a period of 14n weeks (n=1,3,5,7) there will be a new outbreak. The analysis of data reveals, during the first wave, the week with the highest number of infections was July 7-12 (2751 cases), that is in week 14 (n=1). FFT indicates that the second wave of infection would be in week 42 with n=3, the maximum was obtained at week 40 (2122 cases). The next prediction (variant Delta) was for week 70 (n=5), where there would be a high number of cases (thrid wave); real data indicates that it was reached in week 73 (7,023 cases). The four-wave (Omicron) is predicted for week 98, however, it was reached in week 94 (12,834 cases). It should be noted that due to the high transmissibility of Omicron, the number of infection grew fast during January 2022, so in this case, the difference between the prediction and the reality, present a difference of four week, however, for week 94 number of cases remains very high (1265 cases). FFT has turned out to be an adequate tool to make predictions of four waves that have occurred in Tabasco.
Empirical Research Press Ltd., United Kingdom, 2022
VLSI technology development nowadays is mostly focused on the downsizing of semiconductor devices... more VLSI technology development nowadays is mostly focused on the downsizing of semiconductor devices, which is significantly reliant on advancements in complementary metal-oxide-semiconductor technology. Due to capacitance, shorter channel length, body biassing, faster-switching transistor, limited variability, and faster running transistor, Silicon-on-Insulator technology has seen a lot of changes. In comparison to traditional bulk technology, Silicon on Insulator offers intriguing new possibilities. The recent stalling of advancement in CMOS technology has been noticed. A fully depleted silicon on the insulator provides additional performance. Power usage and communication speed are two areas where performance can be improved. Silicon on insulator technology has the potential to reduce power consumption by nearly half while increasing speed by about 40%. Using the Atlas module of the SILVACO software, the research presents a comprehensive analysis of silicon on insulator-based nano metal oxide semiconductor field-effect transistors. Atlas is used to virtually construct a 20 nm silicon on insulator MOSFET. The gate metals employed are Aluminum, N. poly, W (Tungsten), and WSi2 (Tungsten Silicide), and their respective characteristics are obtained and compared. Finally, WSi2 was chosen as the final gate metal because it has the desired band offset, resulting in a positive threshold voltage without the need for any further implants in the channel region. Other metrics are collected, such as the variation of ID vs. VGS features at various values. There is also a fluctuation in drain current as a function of drain to source voltage.
Empirical Research Press Ltd., United Kingdom, 2022
The tourism information system in Nigeria is not novel. What is novel is the need to develop reli... more The tourism information system in Nigeria is not novel. What is novel is the need to develop reliable real-time recommender systems that can adequately aid tourists in their decisions. Several researchers have proposed various models. However, there are still issues about the applicability, effectiveness, efficiency, and reliability of the existing recommenders in the Nigerian tourism sector. This work is aimed at developing an improved model for real-time tourism recommender in Nigeria based on a data mining model. The objectives include the development of a data mining model for real-time reliable user-centric tourism recommendation and evaluation of the recommender system. To achieve these, a supervised machine learning-based classifier is modelled. The classifier system is evaluated using four thousand (4,000) datasets acquired from online and physical Nigerian tourism sources. Nine machine learning algorithms are compared during the testing process based on accuracy and other standard performance metrics. Experimental results show that the PART algorithm outperforms all other algorithms with an accuracy of 91.65%, F-Measure of 0.917, true positive rate of 0.913, the false-positive rate of 0.029, and the precision of 0.917, and recall of 0.917. In terms of efficiency, it also records the least time-tomodel of 0.02 seconds. The rules generated from this algorithm are incorporated into the design of a prototype to test the recommender. The usefulness and efficiency scores based on test cases involving 20 participants prove that the recommender system would be a veritable tool for tourism in Nigeria.
Empirical Research Press Ltd., United Kingdom, 2022
Landscape architecture is a comparatively new concept and is gaining prominence in town and count... more Landscape architecture is a comparatively new concept and is gaining prominence in town and country planning exercises. People marveled at the design of new towns when the infrastructure looks nice and well placed. However, when the planning exercise is not done properly this results in the implementation of poor infrastructure with narrow roads, lack of green spaces, no parking spots, congested streets and so. Architects are still using traditional hand drawing for their designs and sketches which have several limitations. Developing a landscape architecture planning system with appropriate tools will facilitate architects' tasks and others to have an appropriate to ensure proper landscape planning without unnecessarily wasting time manually. This paper aims to present a desktop application with features for generating appropriate cartography which allows users to place appropriate objects representing real-world urban structures and buildings. The Waterfall methodology was used to build and implement the proposed system. The latter is expected to help in the reduction of parking problems and increase the number of green areas in towns. The application proposed includes appropriate validation techniques to allow users to plan a site and made sure that the standards set for parking spaces and green areas are being respected.
Empirical Research Press Ltd., London, United Kingdom, 2022
Bryophyllum pinnatum is a potential medicinal plant widely used in different tribes in Bangladesh... more Bryophyllum pinnatum is a potential medicinal plant widely used in different tribes in Bangladesh. The leaves of B. pinnatum were used in the present study for the compatibility assessment of a proposed ultrasound-assisted green extraction method with the conventional extraction method. An aqueous Ultrasound-Assisted Extraction (UAE) by using both fresh and dried leaves of B. pinnatum was proposed in the present study and successively compared with the traditional methanolic and aqueous (decoction) extraction method. The promising extraction yield was found through the proposed extraction method which was much better than decoction and almost similar to the methanolic extraction method. Phytochemical contents were also observed similar to the methanolic extract. Both methanolic and UAE extracts obtained from B. pinnatum leaves showed favorable antimicrobial sensitivity against both grams positive (Staphylococcus aureus and Streptococcus pyogenes) and gram-negative (Escherichia coli and Salmonella typhi) bacteria. Extracts obtained from the decoction method showed slightly poor antimicrobial activities. The difference in efficiency and efficacy of aqueous UAE extract obtained from fresh and dried leaves was observed insignificant. This indicates there is no necessity to impart the drying stage before extraction normally practiced in the conventional extraction method. Drying of plant material is a common stage of the conventional extraction cycle which ultimately lengthy the process and impose cost due to energy consumption and labor. Ultrasound-assisted extraction may successfully decrease the overall extraction cycle and ultimately reduce the overall cost of extraction. This method also creates opportunities to replace the water instead of with hazardous organic solvent for phytochemical extraction.
Empirical Research Press Ltd., Empirical Research Press Ltd., 2022
The huge amount of library data stored in our modern research and statistic centers of organizati... more The huge amount of library data stored in our modern research and statistic centers of organizations is springing up on daily bases. These databases grow exponentially in size with respect to time, it becomes exceptionally difficult to easily understand the behavior and interpret data with the relationships that exist between attributes. This exponential growth of data poses new organizational challenges like the conventional record management system infrastructure could no longer cope to give precise and detailed information about the behavior data over time. There is confusion and novel concern in selecting tools that can support and handle big data visualization that deals with multi-dimension. Viewing all related data at once in a database is a problem that has attracted the interest of data professionals with machine learning skills. This is a lingering issue in the data industry because the existing techniques cannot be used to remove or filter noise from relevant data and pad up missing values in order to get the required information. The aim is to develop a stacked generalization model that combines the functionality of random forest and decision tree to visualization library database visualization. In this paper, the random forest and decision tree techniques were employed to effectively visualize large amounts of school library data. The proposed system was implemented with a few lines of Python code to create visualizations that can help users at a glance understand and interpret the behavior of data and its relationships. The model was trained and tested to learn and extract hidden patterns of data with a cross-validation test. It combined the functionalities of both models to form a stacked generalization model that performed better than the individual techniques. The stacked model produced 95% followed by the RF which produced a 95% accuracy rate and 0.223600 RMSE error value in comparison with the DT which recorded an 80.00% success rate and 0.15990 RMSE value.
Empirical Research Press Ltd., London, United Kingdom, 2022
A method for Invitro Micropropagation Through Cotyledonary Explants of Trichosanthes anguina was ... more A method for Invitro Micropropagation Through Cotyledonary Explants of Trichosanthes anguina was exercised from 10-15 days of young stage explants [1, 2]. Developed a protocol for cotyledonary explants cultures, callus induction, and regeneration through cotyledon callus tissue [3, 4]. Multiple shoot formation was promoted by BAP 1.0 mg/l to 3.0 to 5.0 mg/l and higher combination with NAA 3.0 to 4.0 mg/l Kn [5, 6]. Invitro produced small shoots were green callus induced to cotyledonary callus cultures green compact small shoots buds were induced in 16-20 days cultures respectively on Ms. Medium.
Empirical Research Press Ltd. London, United Kingdom, 2022
An assessment of cardiac function derived from the ECG signal is known as heart charge variabilit... more An assessment of cardiac function derived from the ECG signal is known as heart charge variability (HRV). The evaluation of HRV provides ways for analyzing entry into the heart rhythm non-invasively, which can be used to guide treatment. For the prevailing study, records of ten members in two one-of-a-kind frame postures have been taken. Sets of records have been received in sleeping and sitting positions. In addition, The R-peak produced from the ECG is employed in the evaluation of the RR interval. It is also applied for the evaluation of HRV. In the context of coronary heart rate (HR), HRV is linked to tachycardia (HR > 100 bpm) and bradycardia (HR 60 bpm). Linear HRV characteristics with unique time-domain and frequency-domain indices are interpreted into two distinct postures. As a result, it is possible to conclude that the RR interval increases for the supine position during all two poses, as sitting appears to be a more comfortable situation than the alternative one. Also, as the frequency-area evaluation result proposes, the LF/HF ratio is better in the supine position, i.e., better sympathetic has an effect. Consequently, supine has a higher resting circumstance than that sitting. A non-linear Poincare plot has also been incorporated for accessing variability.
Empirical Research Press Ltd. London, United Kingdom, 2022
Energy Healing techniques are considered as one of the age-old practices dating its origin back t... more Energy Healing techniques are considered as one of the age-old practices dating its origin back to the ancient scriptures, to be precise much earlier than those. Scientific technology has been incorporated on a small scale into these in recent decades, beginning in the twentieth century. Even in the twenty-first century, little progress has been made in this area. This literature review is an eye-opener for the world to get familiarized with various energy healing techniques and their basic functionality. The various technical devices used for the detection and treatment of the biofield are depicted in brief in this review. The modalities in which Artificial Intelligence is used in various energy healing techniques are introduced here. The review culminates with a note on the future scope of the Energy Healing techniques on a wider horizon incorporating Artificial Intelligence wherever necessary.
Empirical Research Press Ltd. London, United Kingdom, 2022
The purpose of the study was to model the clustering of COVID-19 in Bulawayo, Zimbabwe. A cross-s... more The purpose of the study was to model the clustering of COVID-19 in Bulawayo, Zimbabwe. A cross-sectional study design was used to provide a snapshot of the occurrence of COVID-19 in Bulawayo at a particular time. About 246 COVID-19 cases were randomly selected from the list of cases that occurred in Bulawayo as of 1 August 2020. The data was analyzed in ArcGIS using spatial autocorrelation and hotspot analysis. From the observed pattern, the results demonstrated a significant overall spatial autocorrelation and clustering of COVID-19 cases in Bulawayo. The hotspot analysis showed hotspot localities around the Western Suburbs such as Nkulumane, Cowdry Park, and Luveve. These are high-density suburbs, endorsing that pattern of COVID-19 infections is related to the population density pattern in Bulawayo. In conclusion, hotspot areas detected in this study can help identify future infectious disease surveillance.
Empirical Research Press Ltd. United Kingdom, 2022
Stability, reliability, efficiency, and dependability necessitate a higher performance feature-ba... more Stability, reliability, efficiency, and dependability necessitate a higher performance feature-based system in Ethernet LAN to meet the prevalent emergent technology of 5G and beyond 5G in the domain of networking. LAN technology has experienced the most progression since it came to reality. Despite its ability to achieve promising performance, the technology still keeps some topology characteristics that have a greater influence on its performance. This paper, therefore, addresses the high packet loss experienced in bus topology by investigating the performance of bus topology in four practical scenarios consisting of 10, 20, 30, and 40 nodes. In some applications, traffic was cautiously selected and configured in the application configuration to generate traffic for the modeling. These include HTTP, FTP, email, and databases before they were finally defined in the profile configuration. Substantial global and object statistics such as delay (sec), traffic-sent (bits/sec), traffic-received (bits/sec) for global, and throughput (bits/sec) for global were considered as network metrics for simulation in the OPNET environment. The results obtained proved that as the number of nodes increased, more traffic (bits/sec) were sent and received, more messages were delivered (bits/sec), the delay (sec) was lowered, but greater bit errors per packet were experienced in the network, thus making the bus topology not very suitable for a larger network.
Empirical Research Press Ltd. United Kingdom, 2022
Bali's tourism sector has faced serious challenges since the pandemic, with Bali's economic growt... more Bali's tourism sector has faced serious challenges since the pandemic, with Bali's economic growth rate of-12.28% in the third quarter of 2020. Kampoeng Kepiting Mangrove Ecotourism located in Tuban, Kuta Badung district, Bali province is one of the tourism sectors which suffered a heavy impact. Before the pandemic, ecotourism visitors increased however during the pandemic, the number of visits decreased significantly. This study aims to develop a mangrove ecotourism information system, based on digital books and online reservations. The ecotourism digital book outlines the catalog of tour packages offered along with information on the mangrove tour packages for conservation and education. Based on the information from a digital book, potential visitors can use an online reservation application to make a reservation for tour packages and do payment by bank transfer. Once the payment process is done, visitors get digital vouchers to use the tour packages they have been reserved. The E-Voucher was used to visit the ecotourism of Kampoeng Kepiting. The development of a mangrove information system is expected to support the promotion of ecotourism in the recovery of ecotourism during the COVID-19 pandemic.
Empirical Research Press Ltd. United Kingdom, 2022
As the things are settled down after the emergence of technology, and this is the decade of profe... more As the things are settled down after the emergence of technology, and this is the decade of professionalism as far as technology is concerned, security of data is the major hurdle in this race. This is the era in which data is one click away from the users, so data needs to be more secured so that it can be avoided unauthorized access. For this purpose, different data security fields have also emerged to ensure data security and confidentiality. In this survey paper we will look up all the techniques used for data encryption and after that, we compare those techniques to provide the best algorithm to ensure that data is secured. We go categorically, as in most of the cases, symmetric encryption technique is applicable and, in a few cases, asymmetric is recommended. Firstly, in our study, we compare both the techniques with each other and then compare all the algorithms working under the above-mentioned categories concerning their time, efficiency, memory usage, latency, key size, and several rounds which will result in showing the best algorithm according to input data.
Empirical Research Press Ltd. United Kingdom, 2022
There are a lot of Challenges raised over the security of information written to the Mifare class... more There are a lot of Challenges raised over the security of information written to the Mifare classic 1k a Radio Frequency Identification card due to the vulnerability status of this card. The card's information can be traced to another card or an electronic device. These issues allow for unauthorized access to the data on the Mifare classic 1k-enabled device data which are transmitted between the device and reader. The information produced by a Mifare classic 1k enabled credential system for a stated status is also a concern. The focus of the study is to develop an algorithm to secure information written to the Near Field Communication tag. The performance of the system shows that when n=50, with elapse time of 1.2ms the unique character was 64, likewise at optimal when n=200, the elapse time was 1ms with the unique character of 62. This result shows a decline of the symbol-by-symbol restriction with elapses time which can secure the information of the unique character.
Empirical Research Press Ltd. United Kingdom, 2022
The software development process is completely based on the requirements of stakeholders. If the ... more The software development process is completely based on the requirements of stakeholders. If the requirements of stakeholders are being integrated into the proposed system, then it can be assumed that the end product is going to be optimal and successful. To achieve a successful product, different Requirement Elicitation Techniques (RET) are being practiced. The selection of a suitable RET is based on the nature of the product being developed. So, a single RET doesn't fit all products. In this paper, we differentiate all RETs from each other which makes it easier for an analyst to choose suitable RET from the available ones. We further designed a novel mapping framework that extracts the best suited RET to any software based on its attributes. We have further implemented the proposed framework by using an online vehicle booking system as a running example.
International Journal of Engineering and Applied Computer Science (IJEACS), 2021
The research and communications for detecting mobile security threats with the best protection pr... more The research and communications for detecting mobile security threats with the best protection practices of applications have become essential goals nowadays due to the continuous discoveries of new vulnerabilities. The internet and web-based activities have been increased drastically in recent times by users of all categories. Users have extensively started involved in gaming, banking, frequent bill payment, entertainment, and other network and online activities that are requiring a large number of mobile phone protection and security mechanisms in response to advancements in full-stack applications and wireless networks. The goal of this paper is to uncover the best-applied practices in the domain of mobile security to protect smartphone devices. The main advantages of smartphones are small size with easiness in carrying anywhere and can be a replacement for computing devices in some ways for example emails. Unfortunately, the convenience of using smartphones to do the private task is the loophole cyber attackers need to gain access to personal data. Thus, this paper proposed eight best practices to protect and secure smart mobile phones.
International Journal of Engineering and Applied Computer Science (IJEACS), 2022
The paper aims at studying the effects of fabric aerial weight, thickness, tightness factor, and ... more The paper aims at studying the effects of fabric aerial weight, thickness, tightness factor, and loop shape factor on thermal conductivity behavior of plain single jersey knitted fabrics made with cotton yarn. 25 samples have been collected from the market. The samples are collected on the basis of their variation in the stated factors. Accordingly, statistical analysis is computed by using Design expert software version 11. For analysis Box, Behnken design (BBD) method is followed and made 30 runs of experimentation. A confidence level of 0.95 is used for prediction. The correlation coefficient between the predicted and the actual values are calculated to be 93.76%. The analysis shows fabric tightness factor and loop shape factor significantly affects the thermal conductivity of plain single jersey knitted fabrics. In addition, the interaction of fabric aerial weight & tightness factor, the interaction of fabric aerial weight & loop shape factor, and interaction of thickness & tightness factor also significantly affects the thermal conductivity behavior of the knitted fabric.
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