International journal of engineering science and technology最新文献_第2页

Advancing Heart Disease Prediction: Integrating Transfer and Ensemble Learning 推进心脏病预测:整合迁移和集成学习

International journal of engineering science and technology Pub Date : 2023-09-20 DOI: 10.61463/ijset.icmlheed-2023.103

Christopher Francis Britto

引用次数: 0

Numerical solution of non-linear advection-dispersion equation in a finite porous domain 有限多孔区域非线性平流-色散方程的数值解

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.4

R. Yadav, L. Kumar, Sujata Kushwaha

{"title":"Numerical solution of non-linear advection-dispersion equation in a finite porous domain","authors":"R. Yadav, L. Kumar, Sujata Kushwaha","doi":"10.4314/ijest.v15i3.4","DOIUrl":"https://doi.org/10.4314/ijest.v15i3.4","url":null,"abstract":"This study presents a numerical simulation of the one-dimensional concentration-dependent convection-dispersion equation in a finite heterogeneous porous formation. The solution of the convection-diffusion equation with variable coefficients is obtained with the help of MATLAB pdepe solver. The groundwater flow velocity depends on the pollutant concentration, and the dispersion coefficient is proportional to the groundwater flow velocity. The effects of the zero-order production term and the first-order decay are also considered. The aquifer is assumed to be heterogeneous and finite, with sources concentrated in the flow direction. It is assumed that the porous media and the pollutant are chemically non-reactive. Initially porous domain is considered not solute free. The model assumes a uniform continuous input point source and a variable input point source released from the left end of the aquifer domain. The obtained results graphically describe the importance of the dispersion coefficient and other relevant parameters for solute transport in porous media. The developed numerical solution is verified with an analytical solution, and it is found that they are in good agreement.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"272 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73370449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quality of drinking water used by communities in selected villages from Iringa rural, Kongwa and Mufindi districts, Tanzania 坦桑尼亚Iringa农村、Kongwa和Mufindi地区选定村庄社区使用的饮用水质量

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.2

Jackson H. Katonge, Enock E. Makupa

{"title":"Quality of drinking water used by communities in selected villages from Iringa rural, Kongwa and Mufindi districts, Tanzania","authors":"Jackson H. Katonge, Enock E. Makupa","doi":"10.4314/ijest.v15i3.2","DOIUrl":"https://doi.org/10.4314/ijest.v15i3.2","url":null,"abstract":"Drinking water quality was assessed in selected villages from Kongwa, Mufindi and Iringa rural districts between March and August 2020. Ten villages from three districts were involved in the study: Kongwa (4 villages), Iringa rural (3 villages), and Mufindi (3 villages). Methods used in data gathering were observation, in-situ, and ex-situ measurement of water parameters. A total of 150 samples were collected from different water sources (a bore hole, a well, a spring, and a river) and analyzed using standard methods. Results show that the minimum and maximum values of dissolved oxygen (DO), biochemical oxygen demand (BOD, pH, total dissolved solids (TDS), turbidity, calcium, magnesium, fluoride, nitrate, and hardness were 3.35-9.62, 0.52-1.93, 4.40-8.28, 13.0-2000 mg/L, 0.47–31.6 NTU, 0.41-1.32 mg/L, 0.25-1.35 mg/L, 0.02-1.02 mg/L, 1.30-167 mg/L, and 0.68-216 mg/L, respectively. TDS (2000 mg/L) and nitrate (167 mg/L) were significantly higher than WHO guideline values in some villages from different sources. Further results indicated that 3 out of 17 sampling sites had Escherichia coli, indicating fecal contamination. Higher levels of physical-chemical parameters and microbial contamination observed are of health concern and call for mitigation measures. The study recommends regular water testing, monitoring its quality, treating source points, and providing education to communities surrounding the water sources.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74449888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reaction of undamped systematically driven vibrators via Gupta Transform 无阻尼系统驱动振动器的Gupta变换反应

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.6

Rahul Gupta, Rohit Gupta, Yuvraj Singh, Inderdeep Singh, D. Verma

引用次数: 0

Experimental investigation of emission parameters of diesel engine fueled with various plastic pyrolysis oils 不同塑料热解油对柴油机排放参数的影响试验研究

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.1

Maulik A. Modi, Tushar M. Patel

{"title":"Experimental investigation of emission parameters of diesel engine fueled with various plastic pyrolysis oils","authors":"Maulik A. Modi, Tushar M. Patel","doi":"10.4314/ijest.v15i3.1","DOIUrl":"https://doi.org/10.4314/ijest.v15i3.1","url":null,"abstract":"Plastic has various advantages and is becoming more ubiquitous by the year, yet recycling and disposal remain challenges for the world. We conduct tests in this study to evaluate the appropriateness of various Plastic Pyrolysis Oils (PPOs) made from Low Density Polyethylene (LDPE), High Density Polyethylene (HDPE), and Polypropylene (PP) for diesel engine fuel. Determine which type of plastic pyrolysis oil would function best as an alternative fuel in an experimental investigation. The elemental composition of pyrolysis oil generated from LDPE, HDPE, and PP to diesel was assessed, tabulated, and compared in this study. This study examines emission characteristics (Nitrogen Oxide (NOX), Hydro Carbon (HC), and Carbon Monoxide (CO)) for Diesel, LDPE, HDPE and PP in CI engines using different injection pressure, compression ratio, and load in a specific configuration. In the result of experimental work the CO emission range for diesel and LDPE is exceeded only during overload situations or when the engine load is 100%. The average NOX emission is lowest when PP is used in comparison to other fuels, and the highest NOX emission occurs when LDPE is utilised as a fuel. Increased fumigation rates may be to blame for the rising hydrocarbon content of plastic oil. Unburned hydrocarbon levels are lower at lighter loads due to increased oxygen availability. The use of this whole pyrolysis oil results in a significant decrease in Nitrogen Oxide (NOX), Hydro Carbon (HC), and Carbon Monoxide (CO) exhaust emissions. With the help of this current study. one can solve plastic waste disposal problem and also find any unknown fuel (PPOs) that can be used as an alternative fuel for CI engine or not.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82688215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Power quality improvement of PV interfaced distribution system 光伏接口配电系统电能质量的改善

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.3

Deepesh Sharma, Rajni Bala, Surender Singh, Pardeep Sharma, Sahil Punia

{"title":"Power quality improvement of PV interfaced distribution system","authors":"Deepesh Sharma, Rajni Bala, Surender Singh, Pardeep Sharma, Sahil Punia","doi":"10.4314/ijest.v15i3.3","DOIUrl":"https://doi.org/10.4314/ijest.v15i3.3","url":null,"abstract":"In renewable energy, there is solar energy which is on top of the chart when it comes to the generation of electricity as it is abundantly available in India due to the geographical and climate conditions. These power quality problems and degradation of energy can be avoided by using a control mechanism. It is vital to include a reliable control mechanism in the solar energy conversion system that is connected to the system which will reduce the problem in power quality. This work includes the use of adaptive back propagation which provides an improvement in the degree of precision and accuracy over a longer period of time that the technology is capable of achieving as a consequence. With the help of adaptive back propagation which is being used as the foundation for this procedure, we can achieve accurate results which are possible. This work deals with adaptive back propagation-based control for optimal operation by providing the active power to loads and rest of the remaining power will be provided to the grid. It will help in the mitigation of harmonics in the system, balancing the loads, and improving the power factor of the system. To extract the highest amount of energy possible from the solar photovoltaic array, a process that is known as Incremental-conductance (INC) using the maximum power point tracking (MPPT) is used. The outcomes of computer simulations are used to evaluate how well the suggested system functions, which contributes to the assurance that the system is operating in the most suitable way possible.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87688380","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stream water quality modelling for pollution load capacity in Roshi river- rural Nepal 尼泊尔农村罗什河污染负荷能力的水质模拟

International journal of engineering science and technology Pub Date : 2023-09-07 DOI: 10.4314/ijest.v15i3.5

Saugat Karki, Mahesh Bhattarai, Hari Lal Kharel, Bhesh Kumar Karki

{"title":"Stream water quality modelling for pollution load capacity in Roshi river- rural Nepal","authors":"Saugat Karki, Mahesh Bhattarai, Hari Lal Kharel, Bhesh Kumar Karki","doi":"10.4314/ijest.v15i3.5","DOIUrl":"https://doi.org/10.4314/ijest.v15i3.5","url":null,"abstract":"A rural catchment stream, Roshi (Nepal), is experiencing pollution loads from non-point pollution sources: agricultural runoffs and stone quarry sediment loads requiring immediate concern. This study is focused on developing a well-calibrated and validated water quality model to determine the pollution load capacity of Roshi River at peak rainfall periods using software QUAL2kW concerning pH, Temperature, DO, FSS, NO3-, NH4+, TP, BOD, and Turbidity. A pollution-dominant stretch of 1.95km was selected and segmented into three segments. RMSE values showed the model satisfactory in predicting actual in-field scenarios. Scenario analysis showed that in the existing pollution source flow and streamflow, the pollution load capacity is 275 mg/L for BOD, 33 mg/L for NH4+, 1250 mg/L for NO3-, 10 mg/L for TP, and 0 mg/L for DO. The FSS in the Headwater must be limited to 55 mg/L to maintain the stream water quality within standards signifying the immediate need to reduce the upstream stone quarry load. Policymakers are urged to implement stringent regulations on upstream quarries concerning sediment load discharge into the stream. The developed model can be a valuable tool for predicting the stream's response to potential emissions from future development activities during the monsoon period.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"797 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74425300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

DELIZIA SELF SERVICE APPLICATION USING UX DESIGN AND ANDROID STUDIO Delizia自助服务应用程序使用ux设计和android工作室

International journal of engineering science and technology Pub Date : 2023-07-30 DOI: 10.56127/ijst.v2i2.893

Fernandus Felix Heriyanto, Hari Setiabudi Husni

引用次数: 0

USER SATISFACTION ANALYSIS OF GOJEK APPLICATION USING END-USER COMPUTING SATISFACTION (EUCS) 基于终端用户计算满意度(eus)的gojek应用用户满意度分析

International journal of engineering science and technology Pub Date : 2023-07-30 DOI: 10.56127/ijst.v2i2.875

Aura Wihati Dienislami, Aviarini Indrati

{"title":"USER SATISFACTION ANALYSIS OF GOJEK APPLICATION USING END-USER COMPUTING SATISFACTION (EUCS)","authors":"Aura Wihati Dienislami, Aviarini Indrati","doi":"10.56127/ijst.v2i2.875","DOIUrl":"https://doi.org/10.56127/ijst.v2i2.875","url":null,"abstract":"At the first time, Gojek application is the online transportation services, but now it has various services. Online transportation services in the Gojek application are GoRide and GoCar. Analysis of application performance can be done to determine the user satisfaction. The aim of this research is to analyze the Gojek application user of satisfaction, especially GoRide and GoCar online transportation services. This research consists of 3 steps. The steps are making research model and adopting questionnaire, validity and realibility test and data analysis. Evaluation is done using 5 dimensions of End User Computing Satisfaction (EUCS). It consists of content, accuracy, format, easy of use and timeliness. In addition, the demographic factors of the respondents were also added, namely gender, age and occupation. There are 100 respondents in this research. The result of this research are the user satisfaction of Gojek application, especially GoRide and GoCar, can be categorized as very satisfied. The dimensions of EUCS and demographic factors have positive affect to user satisfaction. Gojek application can develop by increasing the accuracy of information and timeliness.","PeriodicalId":14145,"journal":{"name":"International journal of engineering science and technology","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76002038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IMPLEMENTATION OF NETWORK WEBSITE TECHNOLOGY IN COMPANY BRANDING PROFILE 网络网站技术在公司品牌塑造中的应用

International journal of engineering science and technology Pub Date : 2023-07-27 DOI: 10.56127/ijst.v2i2.867

Wisnu Sukma Maulana, Andre Pratama Adiwijaya

引用次数: 0