KnE Engineering最新文献_第10页

Low Temperature Glass Sintering Based on Silico Sodium Resins 基于硅钠树脂的低温玻璃烧结

KnE Engineering Pub Date : 2020-04-13 DOI: 10.18502/keg.v5i4.6795

M. P. Sáez-Pérez, Alberto Martínez-Ramírez, Orge Alberto DuránSuárez, M. A. Villegas-Broncano

{"title":"Low Temperature Glass Sintering Based on Silico Sodium Resins","authors":"M. P. Sáez-Pérez, Alberto Martínez-Ramírez, Orge Alberto DuránSuárez, M. A. Villegas-Broncano","doi":"10.18502/keg.v5i4.6795","DOIUrl":"https://doi.org/10.18502/keg.v5i4.6795","url":null,"abstract":"By using silicate inorganic binders and glass waste it is possible to mould technical and artistic elements which later can be compacted by means of low temperature, and subsequently apply the sintering through high-temperature processing, which is generally lower than current melting glass processes, close to 1250 °C. The experimental phase established thermal ranges from 600°C to 750°C, a fact that allows for an effective sintering temperature (of around 650°C/18 hours). The mixtures and proportions for this experiment were fixed including ethyl silicate as a fluidizer in mixtures,as well as the size of glass grains.The results indicate good compaction of the samples after the initial phase (80°C/24h), allowing proper handling without alterations in samples edges.During heating treatment, mechanical resistance increases gradually (600-750°C), although the volume of porosity was inversely proportional. According to the matrix vs grain size relationship, the partial fusion of both materials is evident in the rounding of the glass grains as well as the resin bonds joined between them. The resins appeared in a homogenous fashion, covering and gluing the grains, a development which improves the joining of sintered samples. Samples with a mixture of sodium silicate and ethyl silicate resins experienced less melting between grains due to a lower volume of fluxing elements, which means a lower percentage volume of sodium (Na). This study concludes that a sintering process for new vitreous composites could be carried out between 650°C and 700°C, offering the opportunity for a substantial reduction in the amount of energy required to produce industrial glass. \u0000Keywords: Water-glass, glass recycling, low temperature","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116893227","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

Applying Chemometrics to Evaluate Mine Tailings’ Potential As Partial Cement Replacement 应用化学计量学评价尾矿部分替代水泥的潜力

KnE Engineering Pub Date : 2020-04-13 DOI: 10.18502/keg.v5i4.6808

Anne Mette T. Simonsen, K. B. Pedersen, P. Jensen

引用次数: 0

Noise As a Factor of Green Areas Soundscape Creation 噪声作为绿地声景创造的一个因素

KnE Engineering Pub Date : 2020-01-30 DOI: 10.3390/su12030999

M. Sztubecka, M. Skiba, M. Mrówczyńska, Michael Mathias

引用次数: 19

Application of the DSDM methodology and the Django framework for the patient registration system of the Alfonso Villagómez pediatric hospital emergency service DSDM方法和Django框架在Alfonso Villagómez儿科医院急诊服务患者登记系统中的应用

KnE Engineering Pub Date : 2020-01-08 DOI: 10.18502/keg.v5i1.5921

B. Hidalgo, Jonny Guaiña, V. Ramos, Piedad Yumiseba, C. Gutiérrez

{"title":"Application of the DSDM methodology and the Django framework for the patient registration system of the Alfonso Villagómez pediatric hospital emergency service","authors":"B. Hidalgo, Jonny Guaiña, V. Ramos, Piedad Yumiseba, C. Gutiérrez","doi":"10.18502/keg.v5i1.5921","DOIUrl":"https://doi.org/10.18502/keg.v5i1.5921","url":null,"abstract":"This work shows the development of a computerized system for registering emergency patients at Alfonso Villagómez Hospital, using the DSDM(Dynamic Systems Development Method) agile development methodology in which 150 requirements expressed in UML(Unified Modeling language) diagrams were obtained for greater understanding; The PyCharm integrated development environment, the Django frameworks under the language Python and Bootstrap were used for the design of the templates and database management system PostgreSQL. The architecture applied was MTV(Model Template View) and once the system was implemented, the usability of software was evaluated according to the ISO/IEC 9126 standard, using the survey called USE (utility, satisfaction and ease of use), for the hypothesis the test was applied Chi square and it is concluded that the computer system is useful and meets the needs of users. \u0000Resumen. Este trabajo muestra el desarrollo de un sistema informático del registro de pacientes de emergencia del Hospital Alfonso Villagómez, utilizando la metodología de desarrollo ágil DSDM(Metodología de Desarrollo de Sistemas Dinámicos) en el cual se obtuvieron 150 requerimientos expresados en diagramas UML(lenguaje unificado de modelado) para mayor comprensión; para el desarrollo del sistema se utilizó el entorno de desarrollo integrado PyCharm, los frameworks Django bajo el lenguaje Python y Bootstrap para el diseño de plantillas y como gestor de base de datos PostgreSQL. La arquitectura aplicada fue MTV(Modelo, Vista, Plantilla) y una vez implantado el sistema se evaluó la usabilidad de software según el estándar ISO/IEC 9126, mediante la encuesta denominada USE (utilidad, satisfacción y facilidad de uso), para la prueba de la hipótesis se aplicó la prueba de chi cuadrado y se concluye que el sistema informático es útil y satisface las necesidades de los usuarios.","PeriodicalId":106635,"journal":{"name":"KnE Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130018540","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

Study of Carbon Stock Potential and Carbon Absorption on Pamonean Land of Mentawai Community at Siberut Island 西伯利亚岛明打威社区Pamonean土地碳储量潜力与碳吸收研究

KnE Engineering Pub Date : 2019-04-16 DOI: 10.18502/KEG.V1I2.4431

C. ., Gusmardi Indra, Erizal Muchtar, N. ., M. .

引用次数: 1

Screening and Production of Lipase from a Thermo-halophilic Bacterial Isolate of Pria Laot Sabang 80 Isolated from Under Water Hot Spring 海底温泉热嗜盐菌pra Laot Sabang 80脂肪酶的筛选与生产

KnE Engineering Pub Date : 2019-04-16 DOI: 10.18502/KEG.V1I2.4436

Febriani, Nurul H. Ulwiyyah, Nurdin Saidi, T. Iqbalsyah

引用次数: 3

Natural Zeolits and Its Modifications with Protons and Copper As the Catalyst for Esterification of Ethanol with Acetic Acid 天然沸石及其质子和铜催化乙醇与乙酸酯化反应的研究

KnE Engineering Pub Date : 2019-04-16 DOI: 10.18502/KEG.V1I2.4454

Syukri, D. M. Islami, Yoni Saputra, Salmi Seprianti, S. Wahyuni, F. Ramadhani, S. Arief, O. N. Tetra, Y. E. Putri, Y. Rilda