Emerging Materials Research最新文献_第8页

Study of optical properties of SnO2 thin films and its influence on gas sensing response SnO2薄膜光学特性及其对气敏响应的影响研究

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-12-01 DOI: 10.1680/jemmr.22.00085

D. Haridas, Maya Verma, Smita Korpal, A. Arora, S. Mahajan, Amit Tanwar, R. Menon

引用次数: 0

Editorial 编辑

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-12-01 DOI: 10.1680/jemmr.2022.11.4.405

I. Akkurt

引用次数: 0

The influence mechanism of lignite thermal upgrading on moisture re-adsorption 褐煤热改性对水分再吸附的影响机理

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-12-01 DOI: 10.1680/jemmr.22.00001

Lei Fan, Chuanzhi Hu, Huimin Gong, Qinghai Ren, Xingshuai Fan, Xin Cheng

{"title":"The influence mechanism of lignite thermal upgrading on moisture re-adsorption","authors":"Lei Fan, Chuanzhi Hu, Huimin Gong, Qinghai Ren, Xingshuai Fan, Xin Cheng","doi":"10.1680/jemmr.22.00001","DOIUrl":"https://doi.org/10.1680/jemmr.22.00001","url":null,"abstract":"The influence mechanism of lignite thermal upgrading on moisture re-adsorption was investigated using analytical instruments as DTA-TG, FTIR, SEM. The results showed that the moisture content of lignite decreased from 44.78% to 25.07% through the drying process. After the moisture in the lignite and the air reached a dynamic equilibrium, the moisture content of the lignite was 25.75 wt.%. The characteristic functional groups of lignite include hydroxyl, methylene, methyl, carbonyl, carboxyl and ether oxygen. The adsorption distances of the five adsorption sites of carboxyl, phenolic hydroxyl, alcoholic hydroxyl, carbonyl and ether bond to water molecules were 2.081 Å, 2.933 Å, 1.905 Å, 1.860 Å and 1.881 Å, respectively. The order of the adsorption strength of water molecules on the characteristic functional groups was: Carbonyl>Phenolic hydroxyl>Ether oxygen >Alcoholic hydroxyl>Carboxyl. During the upgrading by drying process, the characteristic functional groups that were prone to hydrogen bonds of water molecules partially decomposed. The reduction of pores and the partial decomposition of hydrophilic functional groups after upgrading in the lignite structure made the adsorption capacity of lignite to water molecules weakened. Therefore, the re-absorption of water molecules by lignite was reduced.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43251453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forecasting of production and scrap amount using artificial neural networks 利用人工神经网络预测生产和报废量

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.22.00036

T. Polat

{"title":"Forecasting of production and scrap amount using artificial neural networks","authors":"T. Polat","doi":"10.1680/jemmr.22.00036","DOIUrl":"https://doi.org/10.1680/jemmr.22.00036","url":null,"abstract":"The increase in consumer needs and the scarcity of production resources cause the concept of \"productivity\" to be essential for companies. Reducing costs is an essential factor for increasing competitiveness, and therefore businesses are taking action to reduce scrap costs and increase efficiency. Since the increase in scrap will reduce productivity, it may cause production delays and thus customer dissatisfaction. In this study, the slitting line of one of the essential Japanese supplier companies operating in the automotive sector in Turkey is discussed. The proposed model aims to predict the amount of production and scrap that may occur to increase productivity in the slitting line by using ANN and increasing the slitting line’s efficiency with the measures to be taken. In this context, different ANN designs were made for production and scrap. During the execution of the ANN models, the production and scrap amount was forecasted at 99% and 85%. While measuring the successful performance of the ANN models, RMSE, MAPE, and R2 indicators were used, the forecasted values produced by the ANNs that were successful in terms of performance indicators were compared with the actual values, and the reliability of the study was increased.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49360942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Modification of surface and interface of copper indium gallium selenide films with sulfurization 硫化对铜铟镓硒化物薄膜表面和界面的改性

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.21.00171

Yanbo Yang, Xiaolu Xiong, Junfeng Han

引用次数: 0

Radiation shielding properties for titanium dioxide added composites 添加二氧化钛复合材料的辐射屏蔽性能

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.22.00054

M. Choudhary, I. Akkurt, G. Almisned, H. Tekin

引用次数: 7

Editorial 编辑

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.2022.11.3.283

I. Akkurt

引用次数: 0

Gamma ray shielding parameters of carbon-aramid epoxy composite 碳-芳纶环氧复合材料的γ射线屏蔽参数

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.22.00072

M. Uçar, Hüseyin Fırat Kayıran, Abdul Vahap Korkmaz

引用次数: 7

Effects on the thermal properties of nanoclay addition at different ratios to hybrid composite 不同配比纳米粘土对杂化复合材料热性能的影响

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.22.00045

İ. Öner, G. Öner

引用次数: 1

Improving asphalt concrete mixtures resistance to rapid freeze-thaw effect using HIPS polymer 利用HIPS聚合物提高沥青混凝土混合料抗快速冻融效果

IF 2.2 4区材料科学

Emerging Materials Research Pub Date : 2022-09-01 DOI: 10.1680/jemmr.21.00129

Mousa I. Bani Baker, R. Abendeh

{"title":"Improving asphalt concrete mixtures resistance to rapid freeze-thaw effect using HIPS polymer","authors":"Mousa I. Bani Baker, R. Abendeh","doi":"10.1680/jemmr.21.00129","DOIUrl":"https://doi.org/10.1680/jemmr.21.00129","url":null,"abstract":"Two methods of High Impact Polystyrene polymer (HIPS) addition to the asphalt concrete mixtures (AC) were used to evaluate the effect of freeze-thaw (FT) cycles on the performance of unmodified and modified AC by HIPS; supplementary and additional HIPS polymer as asphalt aggregates. Various polymer contents were used to modify the AC in both methods namely 0% (control), 5%, 10%, 15%, and 20%. Marshall stability, flow, bulk density, Indirect Tensile Strength (ITS) tests were performed on control and modified samples. Non-destructive test was evaluated by Ultrasonic Pulse Velocity. In the first method, replacing mineral filler by HIPS polymer in AC by 10% lead to the increase of density by 1%, stability by 113%, retained stability by 52%, and ITS by 56% compared to control specimen, these results show a reduction in the damage caused by 8 weeks of FT cycles by 14% for modified AC compared to unmodified AC. However, modifying AC by the second method did not provide promising results, the velocity within the specimen has dropped by 20.9% at 10% HIPS additive before FT effect compared to control. The results of the first method revealed the feasibility of improving AC by HIPS polymer to resist effective FT cycles.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":2.2,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45069170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2