Christina AlGemayel, J. Zeaiter, S. Talih, N. Saliba, A. Shihadeh
{"title":"Mechanistic Analysis of the Pyrolysis of Vegetable Glycerin: A Reactive Force Field – Molecular Dynamics Study","authors":"Christina AlGemayel, J. Zeaiter, S. Talih, N. Saliba, A. Shihadeh","doi":"10.30919/es885","DOIUrl":"https://doi.org/10.30919/es885","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74695847","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}
W. D. P. Rengga, N. A. Imani, N. Wijayati, Tohiran Tohiran, W. Cahyati, Doni Saputra
{"title":"Adsorption and Release of Ibuprofen from Silica-Carbon Composites Based on Rice Husks (Oryza Sativa) and Banana Peels (Musa Acuminata)","authors":"W. D. P. Rengga, N. A. Imani, N. Wijayati, Tohiran Tohiran, W. Cahyati, Doni Saputra","doi":"10.30919/es8d873","DOIUrl":"https://doi.org/10.30919/es8d873","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82066354","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}
E. Cherezova, Аbdirakym Nakyp, Y. Karaseva, R. Zhapparbergenov, N. Akylbekov
Abstract
摘要
{"title":"Application of Epoxidized Soybean Oil in Highly Filled Water-Swelling Rubbers","authors":"E. Cherezova, Аbdirakym Nakyp, Y. Karaseva, R. Zhapparbergenov, N. Akylbekov","doi":"10.30919/es936","DOIUrl":"https://doi.org/10.30919/es936","url":null,"abstract":"Abstract","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81951546","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}
Settakorn Uppasen, P. Boonruam, S. Soisuwan, Christian Antonio, P. Wattanachai
{"title":"Biofilm and Biocomposite Film prepared from Durian Rind and Pineapple Leaf: Synthesis and Characterization","authors":"Settakorn Uppasen, P. Boonruam, S. Soisuwan, Christian Antonio, P. Wattanachai","doi":"10.30919/es8d846","DOIUrl":"https://doi.org/10.30919/es8d846","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83801850","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}
This paper adopts the Simultaneous Wireless Information and Power Transfer (SWIPT) concept in designing an adaptive optimal resource allocation algorithm for cooperative transmission in hybrid SWIPT-enabled wireless power sensor networks. The SWIPT concept enables the sensor nodes to utilize the radio-frequency signals to transmit energy along with their sensed data to the cluster heads. We consider having a hybrid access point (HAP) that acts as both power transmitter and a communication gateway. Hence, a cluster head that is two-hops away from the HAP sends its aggregated data along with its harvested energy to its neighboring cluster head that is one-hop away from the HAP. The presented ARCH algorithm is an energy efficient iterative scheme proposed for energy efficiency optimization for cooperative transmission in a hybrid SWIPT-enabled wireless powered sensor network. For the intra-cluster and inter-cluster communication, sensor nodes adaptively choose time switching or power splitting mode based on their energy dispersed value. Also, we present a frame structure for enabling the hybrid SWIPT operation and we formulate the optimization problem by jointly optimizing the transmit powers, the SWIPT ratios, achievable rates, and time for transmission. Simulation results show that the proposed ARCH algorithm is superior to benchmark schemes in terms of energy efficiency, achievable rate, and dispersed energy.
{"title":"ARCH: Adaptive Resource Allocation for Cooperative Transmission in Hybrid SWIPT-Enabled Wireless Powered Sensor Networks","authors":"Guler N, Salamah M","doi":"10.30919/es932","DOIUrl":"https://doi.org/10.30919/es932","url":null,"abstract":"This paper adopts the Simultaneous Wireless Information and Power Transfer (SWIPT) concept in designing an adaptive optimal resource allocation algorithm for cooperative transmission in hybrid SWIPT-enabled wireless power sensor networks. The SWIPT concept enables the sensor nodes to utilize the radio-frequency signals to transmit energy along with their sensed data to the cluster heads. We consider having a hybrid access point (HAP) that acts as both power transmitter and a communication gateway. Hence, a cluster head that is two-hops away from the HAP sends its aggregated data along with its harvested energy to its neighboring cluster head that is one-hop away from the HAP. The presented ARCH algorithm is an energy efficient iterative scheme proposed for energy efficiency optimization for cooperative transmission in a hybrid SWIPT-enabled wireless powered sensor network. For the intra-cluster and inter-cluster communication, sensor nodes adaptively choose time switching or power splitting mode based on their energy dispersed value. Also, we present a frame structure for enabling the hybrid SWIPT operation and we formulate the optimization problem by jointly optimizing the transmit powers, the SWIPT ratios, achievable rates, and time for transmission. Simulation results show that the proposed ARCH algorithm is superior to benchmark schemes in terms of energy efficiency, achievable rate, and dispersed energy.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85724175","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}
R. Alhnifat, M. Abdel-Jaber, Rayeh Nasr Al-Dala’ien
The inclusion of Expanded Polystyrene (EPS) beads in concrete mixtures presents a practical method for preserving natural aggregate resources and addressing the environmental impact caused by the accumulation of EPS waste. This research aims to explore the compressive strength, response to elevated temperatures, and shear performance of lightweight concrete by substituting pozzolana aggregates (PA) with EPS. Several concrete mixes were prepared by replacing different proportions of coarse and fine aggregates with EPS. The two most promising mixes were selected for further investigation. In the first mix, 12.5% of the coarse aggregate and 25% of the fine aggregate were substituted, while the second mix included 12.5% of the coarse aggregate, 25% of the fine aggregate, and 250ml of Master Glenium 51a as a superplasticizer. To establish a baseline, a control mix was prepared using pozzolana coarse aggregate without EPS. The density and compressive strength of the concrete mixtures were assessed by testing standard cubes at room temperature, 250°C, and 500°C. Additionally, three simply supported beams with a span length of 1.05m and a square cross-section measuring 150mm on each side were subjected to a four-point loading scheme to investigate the shear behavior of the concrete produced from the aforementioned mixes. The study findings revealed that the density and compressive strength of the hardened concrete decreased as the percentage of EPS replacement increased. However, the mix incorporating EPS and 250ml of Master Glenium 51a as a superplasticizer achieved a compressive strength of 40.11 MPa at 28 days, indicating the potential of EPS in the lightweight concrete industry. The concrete mixes containing EPS exhibited a lesser reduction in compressive strength at 500°C compared to the control mix without EPS. Furthermore, the beam made with the mix containing EPS and the superplasticizer demonstrated the highest shear capacity among the other beams. Based on these results, this study suggests that incorporating EPS as a partial substitute for pozzolana aggregate holds promise in the lightweight concrete industry, considering its observed density, compressive strength, resistance to high temperatures, and shear behavior.
{"title":"Behavior of Lightweight Concrete Incorporating Pozzolana Aggregate and Expanded Polystyrene Beads","authors":"R. Alhnifat, M. Abdel-Jaber, Rayeh Nasr Al-Dala’ien","doi":"10.30919/es934","DOIUrl":"https://doi.org/10.30919/es934","url":null,"abstract":"The inclusion of Expanded Polystyrene (EPS) beads in concrete mixtures presents a practical method for preserving natural aggregate resources and addressing the environmental impact caused by the accumulation of EPS waste. This research aims to explore the compressive strength, response to elevated temperatures, and shear performance of lightweight concrete by substituting pozzolana aggregates (PA) with EPS. Several concrete mixes were prepared by replacing different proportions of coarse and fine aggregates with EPS. The two most promising mixes were selected for further investigation. In the first mix, 12.5% of the coarse aggregate and 25% of the fine aggregate were substituted, while the second mix included 12.5% of the coarse aggregate, 25% of the fine aggregate, and 250ml of Master Glenium 51a as a superplasticizer. To establish a baseline, a control mix was prepared using pozzolana coarse aggregate without EPS. The density and compressive strength of the concrete mixtures were assessed by testing standard cubes at room temperature, 250°C, and 500°C. Additionally, three simply supported beams with a span length of 1.05m and a square cross-section measuring 150mm on each side were subjected to a four-point loading scheme to investigate the shear behavior of the concrete produced from the aforementioned mixes. The study findings revealed that the density and compressive strength of the hardened concrete decreased as the percentage of EPS replacement increased. However, the mix incorporating EPS and 250ml of Master Glenium 51a as a superplasticizer achieved a compressive strength of 40.11 MPa at 28 days, indicating the potential of EPS in the lightweight concrete industry. The concrete mixes containing EPS exhibited a lesser reduction in compressive strength at 500°C compared to the control mix without EPS. Furthermore, the beam made with the mix containing EPS and the superplasticizer demonstrated the highest shear capacity among the other beams. Based on these results, this study suggests that incorporating EPS as a partial substitute for pozzolana aggregate holds promise in the lightweight concrete industry, considering its observed density, compressive strength, resistance to high temperatures, and shear behavior.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82493229","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}
{"title":"Human Performance and Heat Map Entropy in System State Judgment Task using a Visual Interface Screen","authors":"","doi":"10.30919/es8d854","DOIUrl":"https://doi.org/10.30919/es8d854","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85313642","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}
Zhumakhan K, Tileuberdi Ye, Biysenbayev M, Ongarbayev Ye, Zhanbekov K, Godbert N, Tastambek K, Oliviero Rossi C
Herein we present a new method for producing fuel briquettes from rice husk, which can be used both individually or in combination. The designed briquettes are light-weighted and characterized by a flameless combustion that do not emit toxic substances during burning. These new briquettes were shaped from amorphous carbon obtained by carbonization of rice husks that was carried out in an inert atmosphere (N 2 /Ar) at the temperature 450 °C, followed by desilication using caustic soda for 2 hours and demineralization using nitric acid for 2 hours. To the thus obtained raw material, carboxymethyl cellulose (CMC) used as biobinder was added to form the briquettes and bind the carbon-based materials. In order to obtain briquettes of suitable hardness for all purposes ( ca. 30 MPa of briquette strength), 20% of biobinder was necessary. Oxygenating reagents (NaNO 3 and NH 4 NO 3 ) were also added to ensure high performant briquette flameless combustion. Based on the fact that these briquettes are mainly carbon-based materials with the containing 70-90% and therefore are characterized with a rather light overall weight during 30-38 g.
{"title":"Rice Husk as a Source for Lightweight Flameless Heat-Energy Carbon Briquettes","authors":"Zhumakhan K, Tileuberdi Ye, Biysenbayev M, Ongarbayev Ye, Zhanbekov K, Godbert N, Tastambek K, Oliviero Rossi C","doi":"10.30919/es935","DOIUrl":"https://doi.org/10.30919/es935","url":null,"abstract":"Herein we present a new method for producing fuel briquettes from rice husk, which can be used both individually or in combination. The designed briquettes are light-weighted and characterized by a flameless combustion that do not emit toxic substances during burning. These new briquettes were shaped from amorphous carbon obtained by carbonization of rice husks that was carried out in an inert atmosphere (N 2 /Ar) at the temperature 450 °C, followed by desilication using caustic soda for 2 hours and demineralization using nitric acid for 2 hours. To the thus obtained raw material, carboxymethyl cellulose (CMC) used as biobinder was added to form the briquettes and bind the carbon-based materials. In order to obtain briquettes of suitable hardness for all purposes ( ca. 30 MPa of briquette strength), 20% of biobinder was necessary. Oxygenating reagents (NaNO 3 and NH 4 NO 3 ) were also added to ensure high performant briquette flameless combustion. Based on the fact that these briquettes are mainly carbon-based materials with the containing 70-90% and therefore are characterized with a rather light overall weight during 30-38 g.","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86378919","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}
Madari Palliyalil Sidheekha, A. Shabeeba, Lijin Rajan, M. Thayyil, Y. Ismail
{"title":"Conducting Polymer/Hydrogel Hybrid Free-Standing Electrodes for Flexible Supercapacitors Capable of Self-Sensing Working Conditions: Large-Scale Fabrication Through Facile and Low-Cost Route","authors":"Madari Palliyalil Sidheekha, A. Shabeeba, Lijin Rajan, M. Thayyil, Y. Ismail","doi":"10.30919/es890","DOIUrl":"https://doi.org/10.30919/es890","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75669519","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}
A. Sabitova, Khafiza Akimzhanova, B. Mussabayeva, B. Bayakhmetova, Orazzhanova Lazzyat, Klivenko Alexey, N. Nurzhan, E. Yermoldina
{"title":"Physico-Chemical Characteristics Natural Mud of Salt Lakes of North-East Kazakhstan","authors":"A. Sabitova, Khafiza Akimzhanova, B. Mussabayeva, B. Bayakhmetova, Orazzhanova Lazzyat, Klivenko Alexey, N. Nurzhan, E. Yermoldina","doi":"10.30919/es930","DOIUrl":"https://doi.org/10.30919/es930","url":null,"abstract":"","PeriodicalId":36059,"journal":{"name":"Engineered Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72597637","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}
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