MANAS Journal of Engineering最新文献_第8页

A Blockchain Based Lifelong Learning Platform: The Smart University 基于区块链的终身学习平台:智慧大学

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.739036

Bora Aslan, Kerem Ataşen

{"title":"A Blockchain Based Lifelong Learning Platform: The Smart University","authors":"Bora Aslan, Kerem Ataşen","doi":"10.51354/mjen.739036","DOIUrl":"https://doi.org/10.51354/mjen.739036","url":null,"abstract":"According to today's education system, the content, applicability, quality and performance measurement criteria of the courses may vary according to countries, educational institutions and educators. Because of incorrect performance measurement, hidden skills disappear before they appear. Thanks to the graduation diploma it is observed that people with less than professional knowledge and skills come to better places than those who are more knowledgeable and skilled. In addition, due to the lack of a proper training plan according to the target learning community, boredom and financial problems may arise due to long periods of education. In this study, while trying to avoid material and temporal problems, a blockchain-based lifelong learning platform whose content, processing, reliability, decentralized, open to continuous and rapid accessibility, and evaluation criteria and method is completely objective is proposed. Thanks to this platform, the diplomas to be received by the students who have successfully passed the end-of-education exams will be time-stamped, immutable, safe and traceable. At the same time, all these documents, storage of training contents, diplomas, certificates, post-training exams and all related files , will be kept accessible, secure and immutable thanks to IPFS, the Inter Planetary File System. Achievements, employer and employee pools to be created according to the achievements, and a recruitment contract to be realized will be controlled by smart contracts and absolute reliability and objectivity will be ensured. All these concepts will be made available through a decentralized application (DApp) which will run on a private blockchain network that requires a partial permission to be established.","PeriodicalId":102219,"journal":{"name":"MANAS Journal of Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125802464","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: 1

Effective clay material enriched with thiol groups for Zn(II) removal from aqueous media: A statistical approach based on response surface methodology 从水介质中去除Zn(II)的富含巯基的有效粘土材料:基于响应面方法的统计方法

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.800161

Ümit Ecer, Ş. Yılmaz, T. Şahan

{"title":"Effective clay material enriched with thiol groups for Zn(II) removal from aqueous media: A statistical approach based on response surface methodology","authors":"Ümit Ecer, Ş. Yılmaz, T. Şahan","doi":"10.51354/mjen.800161","DOIUrl":"https://doi.org/10.51354/mjen.800161","url":null,"abstract":"In the present work, the removal of Zn(II) ions from aquatic environments onto 3-mercaptopropyl trimethoxysilane modified kaolin (MK) was investigated in a batch system. Moreover, the optimization and effects of independent parameters such as pH, initial Zn(II) concentration (Co, mg/L) and contact time (min) on the uptake of Zn(II) onto MK were examined by response surface methodology (RSM). Central composite design (CCD) in RSM, the most popular statistical technique, was successfully applied to optimize and model the selected parameters (pH, Co, contact time) for Zn(II)% adsorption onto MK. The number of experiments based on CDD was 20, a total of 20 sets which included fourteen factorial points and six center points were performed to obtain the maximum Zn(II) uptake from aqueous solutions. The optimum points obtained from CCD were 6.39, 50.09 mg/L and 76.10 min for pH, Co, and contact time, in their given order. In these optimal conditions, the maximum removal percentage was found to be 86.19%. The results indicated that the removal yield of Zn(II) from aqueous media onto MK was successfully performed by CCD in RSM. It can be concluded that MK is also a promising material for the uptake of other heavy metals similar to Zn.","PeriodicalId":102219,"journal":{"name":"MANAS Journal of Engineering","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131843503","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

Removal of anionic phenol red from water solution in the batch system by using N,N-dimethylacrylamide and 3-acrlylamidopropil-trimethyl ammonium chloride-based polymeric hydrogels N,N-二甲基丙烯酰胺和3-丙烯酰胺-三甲基氯化铵基聚合物水凝胶在间歇系统中去除水溶液中的阴离子酚红

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.799287

Tuba Ersen Dudu

{"title":"Removal of anionic phenol red from water solution in the batch system by using N,N-dimethylacrylamide and 3-acrlylamidopropil-trimethyl ammonium chloride-based polymeric hydrogels","authors":"Tuba Ersen Dudu","doi":"10.51354/mjen.799287","DOIUrl":"https://doi.org/10.51354/mjen.799287","url":null,"abstract":"p(DMAAm-co-APTMACl) based hydrogels were synthesized at different molar ratios by the redox polymerization technique using N,N-Dimethylacrylamide (DMAAm) and 3-acrlylamidopropil-trimethyl ammonium chloride (APTMACl) monomers and a crosslinker. In this study was aimed to improve the swelling properties and dye sorption of the prepared hydrogels. The balance swelling values of hydrogels were determined by the gravimetric method in deionized water and different pH values, and their structural characterizations were carried out by Fourier transform infrared spectroscopy (FT-IR) and thermal gravimetric analysis (TGA) techniques. Sorption efficiencies and sorption capacities of the synthesized hydrogels were determined using aqueous solutions containing phenol red dye at 25°C. In sorption studies, the effects of different concentrations (5-50 ppm) and different pH values (2-12) on sorption were examined. When the swelling analysis in deionized water was examined, it was determined that there was a significant increase in the balance swelling value of p(DMAAm-co-APTMACl) based hydrogel as the mole ratio of APTMACl increased. In addition, the increase in the molar ratio of APTMACl was found to increase the phenol red dye sorption capacity and removal percentage. It was observed that p(DMAAm-co-APTMACl) (2:8) based hydrogel had a maximum sorption capacity in the range of 5-50 ppm and reached 122.2 mg/g. Experimental data showed that the synthesized p (DMAAm-co-APTMACl) based hydrogel was effective in removing dye from wastewater and could be increased of dyestuff removal by synthesizing at different molar ratios.","PeriodicalId":102219,"journal":{"name":"MANAS Journal of Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126150983","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

Modelling, Sensitivity and Exergy Analysis of Triple-Pressure Heat Recovery Steam Generator 三压热回收蒸汽发生器建模、灵敏度及火用分析

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.793611

S. Mert, F. Özçeli̇k, Ceyda Kök

引用次数: 0

Synthesis and characterization of carboxymethyl shrimp chitosan (CMSCh) from waste shrimp shell 废虾壳羧甲基虾壳聚糖(CMSCh)的合成与表征

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.825443

Nuran Celikci, C. Ziba, M. Dolaz

{"title":"Synthesis and characterization of carboxymethyl shrimp chitosan (CMSCh) from waste shrimp shell","authors":"Nuran Celikci, C. Ziba, M. Dolaz","doi":"10.51354/mjen.825443","DOIUrl":"https://doi.org/10.51354/mjen.825443","url":null,"abstract":"Chitin, the main component of shellfish such as crab and shrimp, is one of the most used biopolymers after cellulose. Today, although recycling of waste is becoming increasingly important, large quantities of seafood shells such as crab and shrimp are being destroyed around the world without much evaluation. Chitosan, which is non-toxic, biodegradable-biocompatible and has many application advantages compared to chitin, is used in many sectors, especially cosmetics, pharmaceuticals and agriculture, as it shows superior properties compared to other biopolymers in terms of chemical and physical properties. In this study, in order to evaluate waste shrimp shells (WSS), shrimp shells were first removed from their minerals and proteins by deproteinization, demineralization and deacetilization processes. Then, chitosan and carboxymethyl shrimp chitosan (CMSCh) were synthesized by isolation of chitin. The structures of Chitin-chitosan and CMSCh were characterized by spectroscopic methods (FT-IR, XRD and NMR) and the deacetylation degrees of them were calculated. Also, surface morphologies and thermal properties were analyzed by SEM and DTA-TG, respectively.","PeriodicalId":102219,"journal":{"name":"MANAS Journal of Engineering","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116405221","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: 3

Investigation of hydrazine electrooxidation performance of carbon nanotube supported Pd monometallic direct hydrazine fuel cell anode catalysts 碳纳米管负载钯单金属直接肼燃料电池阳极催化剂的肼电氧化性能研究

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.801182

Omer Faruk Er, Ali Cavak, A. Aldemir, H. Kivrak

引用次数: 6

Forecasting COVID-19 cases based on mobility 基于流动性预测COVID-19病例

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.769763

M. Şahin

引用次数: 3

Investigation of rheological behavior of Kyrgyz traditional food Sary mai 吉尔吉斯传统食品萨利麦流变特性的研究

MANAS Journal of Engineering Pub Date : 2020-12-21 DOI: 10.51354/mjen.752557

Janyl Iskakova, Jamila Smanalieva

引用次数: 3