Dyna-Colombia最新文献_第8页

ANALYSIS OF A NEW TOOL FOR ELECTRODE POSITIONING ON THE SCALP ACCORDING TO THE INTERNATIONAL 10/20 SYSTEM 基于国际10/20系统的新型头皮电极定位工具分析

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10872

Albert Fabregat Sanjuan, Rosa PAMIES VILLA, Agnes RIGO VIDAL, Vicenc PASCUAL RUBIO

{"title":"ANALYSIS OF A NEW TOOL FOR ELECTRODE POSITIONING ON THE SCALP ACCORDING TO THE INTERNATIONAL 10/20 SYSTEM","authors":"Albert Fabregat Sanjuan, Rosa PAMIES VILLA, Agnes RIGO VIDAL, Vicenc PASCUAL RUBIO","doi":"10.6036/10872","DOIUrl":"https://doi.org/10.6036/10872","url":null,"abstract":"The emergence of non-invasive electromagnetic brain stimulation techniques, together with the improvement of electrophysiological recordings, has led to the need to increase the precision of the localization of cranial points close to their cortical target. In the clinical practice, the most common technique for locating there points on the scalp is the International 10/20 system and tape measure and a marker pen are used to carry out the marking process, before the placement of the electrodes. In this study, we have compared the marking for different electrophysiological tests between the conventional method and a new method based on the EPlacement device. The comparison was made taking into account the time spent on each test, the mean distance error per electrode, the direction of the error using the coordinate sign and, finally, a survey of healthcare staff to get their opinions on the 1S-EP and 2S-EP variants of EPlacement. The study involved 10 healthcare workers, 5 of whom had experience in conventional marking and 5 had experience in using the EPlacement device. 90 markings on dummies and 10 markings on volunteers were performed. Once each marking was completed on the dummies, the distances between the experimental points (marked with the EPlacement and tap measure) and the reference positions from 10/20 system determined by a 3D printed template were measured. The results show that with EPlacement, marking accuracy is increased, marking time is reduced, and healthcare personnel is receptive to adopting this technology.\u0000Keywords: 10/20, EEG, neurophysiology, nasion, inion, tragus, evoked potentials, error, 3D, EPlacement, dummy head, rTMS.","PeriodicalId":50565,"journal":{"name":"Dyna-Colombia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47236238","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

SOLID STATE BATTERIES: CHALLENGES AND PROJECTION (Part 1/2) 固态电池：挑战与展望（第1/2部分）

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10847

A. Babaei, Sebastian Llopis, Leire ZUBIZARRETA SAENZ DE ZAITEGUI, Mayte GIL AGUSTI, Alfredo Quijano López

引用次数: 0

FRICTIONAL PRESSURE DROP DURING CONDENSING FLOW INSIDE MINI/MICRO-CHANNELS: PREDICTIVE TOOLS ASSESSMENT AND DATA TREATMENT 微型/微型通道内冷凝流过程中的摩擦压降：预测工具评估和数据处理

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10750

Francisco Alberto RAMIREZ RIVERA, Nestor GUERRERO RODRIGUEZ, Yokasta García Frómeta, Alison SANCHEZ GARCIA

引用次数: 0

INDUSTRY 4.0 REMOTE LAB BASED ON PIC MICROCONTROLLERS 基于PIC单片机的工业4.0远程实验室

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10925

Sergio MARTIN GUTIERREZ, Alvaro Gómez, Manuel Alonso CASTRO GIL

引用次数: 1

PREPARATION AND PERFORMANCE OF CEMENTING MATERIALS FOR RAPID MAINTENANCE OF PAVEMENT POTHOLES 路面坑洼快速养护胶凝材料的制备及性能研究

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10914

Qiang Liu, Min Yang, Hongjun Jing, Yong Yiang, Yucheng Hu

{"title":"PREPARATION AND PERFORMANCE OF CEMENTING MATERIALS FOR RAPID MAINTENANCE OF PAVEMENT POTHOLES","authors":"Qiang Liu, Min Yang, Hongjun Jing, Yong Yiang, Yucheng Hu","doi":"10.6036/10914","DOIUrl":"https://doi.org/10.6036/10914","url":null,"abstract":"At present, China has entered the peak stage of large-scale maintenance, but repair materials for asphalt pavement potholes are subjected to problems, such as low construction efficiency and poor durability. Polyurethane modified epoxy acrylic resin was selected in this study to repair pavement potholes rapidly and improve durability further. Meanwhile, the cementing material and aggregate were formed into a mixture for rapid repair. A four-factor and four-level orthogonal experiment was designed, and the optimal mass ratio of each component of the cementing material (EPMY) was determined according to three indexes: tensile strength, elongation at break, and viscosity. The basic properties of the material were evaluated using viscosity, glass transition temperature, thermal stability, and elastic recovery rate tests. Finally, the mechanical properties of EPMY immersed in water, salt, acid, and oil solutions were tested under different environmental stimuli. Results showed that the optimal mass ratio of epoxy resin binder is 100% epoxy acrylic resin:15% diluent:30% toughening agent:60% curing agent:6% accelerant, with a tensile strength of 21.48 MPa and an elongation at break of 48.3% at ?10 °C. Elastic recovery rate is 51.3% at room temperature, glass transition temperature is ?13.6 °C, and mass residual rate of EPMY is 10.06% when the temperature rises to 500 °C. The mechanical properties of EPMY are maximally affected by the acidic solution; and the elongation at break, bending strength, and bending deformation are reduced by 11.63%, 7.52%, and 9.58%, respectively. Moreover, and the elongation at break of EPMY can be maintained above 89%. The cementing material can be used for the rapid repair of pavement potholes, thereby increasing the convenience of maintenance work and improving the maintenance level.\u0000\u0000Keywords: pavement materials, epoxy resin, polyurethane, material design, mechanical properties","PeriodicalId":50565,"journal":{"name":"Dyna-Colombia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48102104","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

INFLUENCE OF SIDE CUTTING EDGE ANGLE ON THE DESIGN OF THE CHIPBREAKER: STUDY OF DYNAMIC AND HIGH FEED TURNING TOOLS IN INCONEL® 718 侧刃角对断屑机设计的影响:inconel®718动态高进给车削刀具的研究

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10876

F. Amigo, A. FERNANDEZ VALDIVIELSO, Pablo FERNANDEZ DE LUCIO, Octavio PEREIRA NETO, Gorka URBICAIN PELAYO, Freddy CORRALES LACAYO, Luis Norberto LOPEZ DE LA CALLE MARCAIDE

{"title":"INFLUENCE OF SIDE CUTTING EDGE ANGLE ON THE DESIGN OF THE CHIPBREAKER: STUDY OF DYNAMIC AND HIGH FEED TURNING TOOLS IN INCONEL® 718","authors":"F. Amigo, A. FERNANDEZ VALDIVIELSO, Pablo FERNANDEZ DE LUCIO, Octavio PEREIRA NETO, Gorka URBICAIN PELAYO, Freddy CORRALES LACAYO, Luis Norberto LOPEZ DE LA CALLE MARCAIDE","doi":"10.6036/10876","DOIUrl":"https://doi.org/10.6036/10876","url":null,"abstract":"Dynamic turning is a recent technology that allows inserts with different cutting edges to be used and the side cutting edge angle to be modified by controlled spindle rotation and synchronised variation of the cutting parameters. This makes it possible to eliminate downtime by reducing tool changes. Chip breaking is a relevant fact in the turning of aeronautical parts, as it allows a higher heat dissipation performance when working with heat-resistant superalloys, materials that degrade inserts rapidly. An initial study has been carried out, using different fixed side cutting edge angles, to test the chipbreaker performance of an experimental dynamic turning insert in order to adapt its design to the machining of aeronautical components, obtaining that, although the cutting performance is good, the chipbreaker does not perform correctly in finishing conditions, and therefore it must be redesigned by reducing its distance to the cutting edge.\u0000\u0000Keywords: dynamic turning; high feed; aerospace superalloy; chipbreaker, side cutting edge angle.","PeriodicalId":50565,"journal":{"name":"Dyna-Colombia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46469220","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

METHODOLOGY AND ARCHITECTURE FOR THE IMPLEMENTATION OF TPM 4.0 IN SMALL AND MEDIUM-SIZED COMPANIES 中小企业实施TPM 4.0的方法和体系结构

Dyna-Colombia Pub Date : 2023-07-01 DOI: 10.6036/10878

Juan Carlos HERNANDEZ MATIAS, Jose RIOS CHUECO, Miguel CLAVIJO JIMENEZ, Monica VILLAVERDE SAN JOSE, Antonio VIZAN IDOIPE

引用次数: 0

DECENTRALIZED INDUSTRY 5.0: BLOCKCHAIN’S CONTRIBUTION TO INDUSTRIAL SUSTAINABILITY, RESILIENCE, AND HUMAN-CENTRICITY 去中心化产业5.0：区块链对产业可持续性、韧性和以人为本的贡献

Dyna-Colombia Pub Date : 2023-06-17 DOI: 10.6036/10804

Oscar LAGE SERRANO, M. Sáiz Santos, J. Zarzuelo

{"title":"DECENTRALIZED INDUSTRY 5.0: BLOCKCHAIN’S CONTRIBUTION TO INDUSTRIAL SUSTAINABILITY, RESILIENCE, AND HUMAN-CENTRICITY","authors":"Oscar LAGE SERRANO, M. Sáiz Santos, J. Zarzuelo","doi":"10.6036/10804","DOIUrl":"https://doi.org/10.6036/10804","url":null,"abstract":"The emerging concept of Industry 5.0 presents new challenges related to sustainability, resilience, and worker welfare in industrial companies; challenges that are vital for industrial and social development in the coming years. We believe that blockchain can help to face these challenges thanks to the trust and security it provides in complex ecosystems such as industrial supply chains. To verify this hypothesis, this paper performs a Systematic Literature Review (SLR) based on two stages. A first stage focused on the analysis of publications related to blockchain and Industry 5.0. Being such a novel term and with limited literature, we complemented the analysis with a second stage in which we analyzed the benefits of blockchain on each of the three pillars of Industry 5.0: sustainability, resilience, and human-centricity. The results of the SLR confirm our initial hypothesis and provide details on how, and to what extent, blockchain can add value to each of the three challenges of Industry 5.0, empowering at least nine use cases that will contribute to those challenges.\u0000Keywords: blockchain, industry 5.0, sustainability, resilience, human-centricity, human centric","PeriodicalId":50565,"journal":{"name":"Dyna-Colombia","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44153670","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

Biobased particleboards from rice husk and soy protein concentrate: evaluation of flexural properties and dimensional stability under indoor environmental conditions 由稻壳和大豆蛋白浓缩物制成的生物基刨花板:在室内环境条件下弯曲性能和尺寸稳定性的评价

Dyna-Colombia Pub Date : 2023-06-13 DOI: 10.15446/dyna.v90n226.106584

Mayra C. Chalapud, Emiliano M. Ciannamea, Josefa F. Martucci, Roxana A. Ruseckaite, Pablo M. Stefani

引用次数: 0

Microtermometría de rocas carbonatadas de la formación Loma gorda, sector las Brisas, Huila, Colombia 哥伦比亚威拉las Brisas区Loma gorda组碳酸盐岩的微温度测定

Dyna-Colombia Pub Date : 2023-06-13 DOI: 10.15446/dyna.v90n226.106661

María Camila Quevedo-Villamil, Ingrid Natalia Muñoz-Quijano, Diego Germán Loaiza-García

引用次数: 0