International Journal of Engineering Research Updates最新文献_第2页

(n+/p/p+) Silicon solar cell base thickness optimization under modulated short wavelength illumination, at resonances in both frequency and temperature of minority carriers’ diffusion coefficient (n+/p/p+)调制短波光照下，少数载流子扩散系数频率和温度共振下的硅太阳电池基底厚度优化

International Journal of Engineering Research Updates Pub Date : 2022-11-30 DOI: 10.53430/ijeru.2022.3.2.0059

Ousmane SOW, Sega GUEYE, Richard MANE, Gora DIOP, Ibrahima DIATTA, Khady LOUM, Moustapha THIAME, Mamadou WADE, Gregoire SISSOKO

{"title":"(n+/p/p+) Silicon solar cell base thickness optimization under modulated short wavelength illumination, at resonances in both frequency and temperature of minority carriers’ diffusion coefficient","authors":"Ousmane SOW, Sega GUEYE, Richard MANE, Gora DIOP, Ibrahima DIATTA, Khady LOUM, Moustapha THIAME, Mamadou WADE, Gregoire SISSOKO","doi":"10.53430/ijeru.2022.3.2.0059","DOIUrl":"https://doi.org/10.53430/ijeru.2022.3.2.0059","url":null,"abstract":"The magneto-transport equation relating to the density of photogenerated minority carriers in the (p) base of the (n+/p/p+) solar cell illuminated by monochromatic light in frequency modulation, is solved. The diffusion coefficient of the minority carriers in the base, placed under temperature and magnetic field variation, passes through a maximum, at the double resonance points, in temperature and at the frequency of the cyclotron. The photocurrent is reproduced as a function of the recombination velocity at the junction, for the maximum values of the diffusion coefficient. The expressions of the minority carriers ’recombination velocity on the rear side are deduced and their graphical representation gives the optimum thickness, specific to a high absorption coefficient, for the maximum values of the diffusion coefficient. The results obtained from the optimum thickness are modelled and analyzed, in favor of a reduction of silicon material, for the development of economical solar cells.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115689038","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: 2

ANFIS based data rate prediction for cognitive radio 基于ANFIS的认知无线电数据速率预测

International Journal of Engineering Research Updates Pub Date : 2022-11-30 DOI: 10.53430/ijeru.2022.3.2.0062

Manish Patidar

{"title":"ANFIS based data rate prediction for cognitive radio","authors":"Manish Patidar","doi":"10.53430/ijeru.2022.3.2.0062","DOIUrl":"https://doi.org/10.53430/ijeru.2022.3.2.0062","url":null,"abstract":"Intelligence is needed to keep up with the rapid evolution of wireless communications, especially in terms of managing and allocating the scarce, radio spectrum in the highly varying and disparate modern environments. Cognitive radio (CR) systems promise to handle this situation by utilizing intelligent software packages that enrich their transceiver with radio-awareness, adaptability and capability to learn. Its system participates in a continuous process, “the cognition cycle”, during which it adjusts its operating parameters, observes the results and, eventually takes actions, that is to say, decides to operate in a specific radio configuration (i.e., radio access technology, carrier frequency, modulation type, etc.) expecting to move the radio toward some optimized operational state. In such a process, learning mechanisms utilize information from measurements sensed from the environment, gathered experience and stored knowledge and guide in decision making. This paper evaluates learning schemes that are based on adaptive neuro-fuzzy inference system (ANFIS) for predicting the capabilities (e.g. data rate) that can be achieved by a specific radio configuration in cognitive radio. While CR is an intelligent emergent technology, where learning schemes are needed to assist in its functioning. On the other side, ANFIS based scheme is one of the good learning artificial intelligence method, that combines best features of neural network and fuzzy logic. Here proposed method is able to assist a cognitive radio system to help in selecting the best one radio configuration to operate in. Performance metric like root mean square error (RMSE), prediction accuracy of ANFIS learning has been used as performance index.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122727034","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

Aquifer depths and thickness in Ogba/Egbema/Ndoni local government area of Rivers State, Nigeria from vertical electrical soundings 尼日利亚河流州Ogba/Egbema/Ndoni地方政府区域的含水层深度和厚度

International Journal of Engineering Research Updates Pub Date : 2022-11-30 DOI: 10.53430/ijeru.2022.3.2.0054

Peter Ogochuku Eke, Frankline Dagogo Ibim, Peace Ugechi

{"title":"Aquifer depths and thickness in Ogba/Egbema/Ndoni local government area of Rivers State, Nigeria from vertical electrical soundings","authors":"Peter Ogochuku Eke, Frankline Dagogo Ibim, Peace Ugechi","doi":"10.53430/ijeru.2022.3.2.0054","DOIUrl":"https://doi.org/10.53430/ijeru.2022.3.2.0054","url":null,"abstract":"Most parts of the world depend on groundwater for domestic and other uses. Different geophysical methods can be used to exploit these groundwater. In this study aquifer depths and thickness spread in parts of Ogba/Egbema/Ndoni Local Government Area of Rivers State, Nigeria have been determined from 30 vertical electrical sounding survey. An ABEM Terrameter (SAS 300C) was used with Schlumberger array configuration of maximum electrode spread of 500 m. The data were analyzed with an IP2WIN ID software to obtain the strata resistivities, geoelectric layers, aquifer depths and thickness from which the isopach and iso-resistivity maps of the region were obtained. The results show two to four layer formations with resistivity values ranging from 350 to 3895 . Aquifer depths of between 20 m to 75 m and thickness varying from 17 m to 48 m. The isopach map indicates that regions in the north-central part of the study area have shallower aquifer thickness with an average value of 25 m while in the other parts of the study area, the average value is 41 m. The iso-resistivity contour maps at depth intervals of 50 m, 100 m, 150 m and 200 m reveal the trending of the resistivity values for these depths across the region. The general results indicate that the study area has productive aquifers of reasonable thickness at moderate depths from 20 m as in the other parts of the Niger delta region, therefore portable boreholes can be drilled from this depth.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124842775","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

Simulation of packed bed reactors for naphtha reforming unit 石脑油重整装置填料床反应器模拟

International Journal of Engineering Research Updates Pub Date : 2022-11-30 DOI: 10.53430/ijeru.2022.3.2.0060

Ogijoh Jibrin Yakubu, Olalekan Michael Adeloye, Princewill Woyinbrakemi Igbagara

{"title":"Simulation of packed bed reactors for naphtha reforming unit","authors":"Ogijoh Jibrin Yakubu, Olalekan Michael Adeloye, Princewill Woyinbrakemi Igbagara","doi":"10.53430/ijeru.2022.3.2.0060","DOIUrl":"https://doi.org/10.53430/ijeru.2022.3.2.0060","url":null,"abstract":"The study focused on the performance evaluation of catalytic naphtha reforming unit via a packed bed reactors arranged in series. Three series arranged packed bed naphtha reforming reactors were developed and simulated using Aspen hysys software and steady state performance models of the packed bed naphtha reforming reactor were developed through the application of the principle of conservation of mass and energy to predict both the yields of theses reactors, their dimensions in terms of length, diameter, height, volume and temperature effects or progressions along the reactors’ length respectively. Three main reaction paths were considered in this research study that include the conversion of naphthenes to aromatics, naphthenes to paraffins and hydrocracking of paraffins. The developed performance models yielded first order ordinary differential equations which were solved using Runge-Kutta fourth order ODE45 solver. The packed bed reactor operating conditions of temperature and pressure are between 4800C and 5200C and 2atm respectively with ninety percent (90%) conversion. The simulated reactor performance model for the three reactors yielded 29.7 m3, 40.78 m3 and 52.33 m3 for reactor volume, catalyst bed height of 11m, 12.98 m, 16 m, and reactor’s diameter of 1.85 m, 2 m and 2.04 m respectively.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132554235","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

Monochromatic ligth of short wavelength as applied to determine (N+/P/P+) Silicon solar cell base thickness under the influence of both magnetic field and temperature 利用短波长的单色光测定(N+/P/P+)硅太阳电池基底在磁场和温度影响下的厚度

International Journal of Engineering Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijeru.2022.3.2.0055

Sega DIAGNE, Gora DIOP, Richard MANE, Malick NDIAYE, Ibrahima DIATTA, Gilbert N DIONE, Ousmane SOW, Moustapha THIAME, Mamadou WADE, Gregoire SISSOKO

引用次数: 0

Best application of low-cost enhancement treatment for agricultural drain wastewater 农业排水废水低成本强化处理的最佳应用

International Journal of Engineering Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijeru.2022.3.2.0056

Soliman Rania Adel, El Nadi MH, Hassan AA, Mohamed SA, Abdelmomen MM

{"title":"Best application of low-cost enhancement treatment for agricultural drain wastewater","authors":"Soliman Rania Adel, El Nadi MH, Hassan AA, Mohamed SA, Abdelmomen MM","doi":"10.53430/ijeru.2022.3.2.0056","DOIUrl":"https://doi.org/10.53430/ijeru.2022.3.2.0056","url":null,"abstract":"This study aimed to apply a new technique of treatment inside stream using polyethylene sheets strips as a very cheap method for enhancing the quality of agriculture wastewater to meet the irrigation reuse needs. The study was carried out on a pilot plant that was constructed by EU research project named “drains water quality enhancement” inside Faqous Wastewater Treatment plant nearby Bahr El Bakar agricultural drain in El Sharqiyah Governorate, Egypt. Polyethylene strips were used as in stream media treatment where the operation program was made to determine the best positioning for applied serial lines to achieve the target water quality for reuse purposes, The study used four intervals first was 30 cm in channel 2 ,the second was 70cm in channel 3, the third was 100cm in channel 4 ,and the fourth was 150 cm in channel 5 to get the best enhancing efficiency and the removal ratios for Biochemical Oxygen demand (BOD), Chemical Oxygen demand( COD) & Heavy metals (HM). Each channel contains six serial curtain lines to determine the study parameters. The results showed that the first interval 30 cm achieved removal ratios 44.6 %for BOD, 27 %for COD, and 41.7% for HM, while interval 70 cm produced removal ratios 46 %for BOD, 27.7 %for COD, and 43.3% for HM, for the third interval 100 cm the study get the removal ratios 51.6 %for BOD, 30 %for COD, and 46 % for HM, and finally for interval 150 cm the resulted removal ratio were 52.6 %for BOD, 30.5 %for COD, and 48 % for HM. The study proved that the curtain lines interval should be equal to or more than double the water depth in the stream to achieve higher removal efficiency in all measured parameters.","PeriodicalId":423246,"journal":{"name":"International Journal of Engineering Research Updates","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127807144","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

Hand gestures recognition classification 手势识别分类

International Journal of Engineering Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijeru.2022.3.2.0053

Hind Ibrahim Mohammed, Bashar Ahmed Sultan, Khalid Hadi Hamee

引用次数: 0

Present status of inclusive education in India 印度全纳教育现状

International Journal of Engineering Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijeru.2022.3.2.0052

Suvendu Ray, Bikash Ghanta

引用次数: 0

Explored the impact of a variety of substrate materials on microstrip patch antenna 探讨了各种衬底材料对微带贴片天线的影响

International Journal of Engineering Research Updates Pub Date : 2022-10-30 DOI: 10.53430/ijeru.2022.3.2.0057

Padmavati, Harshavardhan Reddy

引用次数: 0

A model of optical fiber point-to-point communication system 光纤点对点通信系统模型

International Journal of Engineering Research Updates Pub Date : 2022-08-30 DOI: 10.53430/ijeru.2022.3.1.0049

Oluwole Olakunle Green, Gbenga Ayodeji Gbotoso, Samuel Okeolu Omogoye, Olufemi Sobowale Soneye, Iskeel Adekunle Sadiq, Abayomi Olukayode Ajayi

引用次数: 0