Journal of Applied Research and Technology最新文献_第4页

Synthesis, characterization, and antimicrobial properties of copper oxide nanoparticles produced by laser ablation method in chitosan solution 壳聚糖溶液中激光烧蚀法制备氧化铜纳米颗粒的合成、表征及抗菌性能

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1596

Nabila Dyah Rifani, Rebriarina Hapsari, Tyas Prihatiningsih, A. Khumaeni

{"title":"Synthesis, characterization, and antimicrobial properties of copper oxide nanoparticles produced by laser ablation method in chitosan solution","authors":"Nabila Dyah Rifani, Rebriarina Hapsari, Tyas Prihatiningsih, A. Khumaeni","doi":"10.22201/icat.24486736e.2023.21.2.1596","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1596","url":null,"abstract":"Copper Oxide Nanoparticles (CuONPs) show a broad spectrum of antimicrobial activity against various species of microorganisms, including gram-positive and gram-negative fungi and bacteria, but in general gram-negative bacteria are more resistant to the effects of copper nanoparticle ions than gram-positive ones. In this work, synthesis of copper oxide nanoparticles has been carried out using laser ablation methods and the nanoparticles were applied as antibacterial agent against gram-positive bacteria Enterococcus faecalis. Experimentally, Nanoparticle synthesis was carried out using laser ablation with a power of 40 mJ. Antibacterial test with disc diffusion test using disc paper soaked in 0.1% chitosan solution (negative control), sodium hypochlorite (positive control), and copper oxide nanoparticles with a concentration of 60 ppm, 80 ppm, 100 ppm; then put into a petri dish that has been planted with the Enterococcus faecalis bacteria. Copper oxide nanoparticles were formed in chitosan as confirmed by UV-Vis, FTIR, SEM and EDX analysis. Post Hoc Tukey HSD analysis showed a significant difference in the negative control group, and the inhibition zone diameter of the treatment group was the same. The synthesis of nanoparticles using laser ablation fired at a pure copper plate succeeded in producing copper oxide nanoparticles in chitosan solvent. The firing time affects the concentration and size of the nanoparticles. More laser energy is required to produce a smaller particle size due to its antibacterial activity.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41608639","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

Specifics of the requirements for the interior layout of long-haul aircraft 长途飞机内部布局要求的细节

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1465

M. Kuprikov, A. Orekhov, Yelizaveta D. Shulga, Yangguang Min

引用次数: 0

Protection Challenges on Integration of Distributed Sources to Power system network: A Review 分布式电源与电网集成的保护挑战综述

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1630

Hinal Shah, J. Chakravorty

{"title":"Protection Challenges on Integration of Distributed Sources to Power system network: A Review","authors":"Hinal Shah, J. Chakravorty","doi":"10.22201/icat.24486736e.2023.21.2.1630","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1630","url":null,"abstract":"— Electricity generation has to be increased to meet various type of future load demand like LED lightning, Electrical \u0000Vehicles, mobiles, communication network, non linear load etc. Automation is essential requirement now a days in each sector. \u0000To provide automation at residential, commercial and industrial sectors electrical energy is required. To meet energy \u0000requirement of various sector utility grid is integrated with DG Sources, which mainly include renewable energy sources like \u0000solar, wind and other environment friendly sources either in large scale or small scale depends on the location and availability. \u0000This type of technology leads power system to era of smart grid. Smart grid technology provides features like digitization, two \u0000way communication, distributed generation, adaptive islanding, self monitoring and self mitigating, fully controllable compare to \u0000conventional Grid. Though smart grid technology is advantageous but due to integration of distributed generation at \u0000transmission and distribution system will increase protection challenges in the power network. This paper gives an insight of \u0000different protection issues which occur at transmission, distribution and Micro grid network. The paper also focuses on the \u0000techniques and solution of the various protection challenges.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42625488","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

Mathematical Modelling of Composite Phantoms for the Calibration of Ultrasound Devices 超声设备校正用复合幻像的数学建模

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1535

J. Bravo-Castillero, R. O. Caballero-Pérez, Ana Paulina Haro-Álvarez, Francisco Heredia-López, N. Hevia-Montiel, María Del Carmen Jorge, R. Medina-Esquivel, Erik Molino-Minero-Re, José Antonio Neme-Castillo, J. Perez-Gonzalez, Joel Humberto Sánchez-Paz, C. Valés-Pinzón

{"title":"Mathematical Modelling of Composite Phantoms for the Calibration of Ultrasound Devices","authors":"J. Bravo-Castillero, R. O. Caballero-Pérez, Ana Paulina Haro-Álvarez, Francisco Heredia-López, N. Hevia-Montiel, María Del Carmen Jorge, R. Medina-Esquivel, Erik Molino-Minero-Re, José Antonio Neme-Castillo, J. Perez-Gonzalez, Joel Humberto Sánchez-Paz, C. Valés-Pinzón","doi":"10.22201/icat.24486736e.2023.21.2.1535","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1535","url":null,"abstract":"We propose a methodology to narrow down the selection of design parameters of phantoms for calibrating ultrasound devices. For doing so, we model the phantoms as composite materials. Through a mathematical homogenization technique, the global properties of the phantom are given in terms of the volume fractions of its components, their geometric shapes and physical properties. We explore these parameters to determine ranges that yield the desirable values of acoustic impedance and attenuation. The procedure is illustrated for a class of sandwich-like phantoms made of layers of agar of different concentrations with complex elastic moduli. In this example, homogenization provides analytical formulae of the global properties that can be used to identify the layers’ thicknesses and concentrations that yield a low impedance and an average attenuation coefficient. These analytical results are compared with a numerical homogenization method, showing excellent agreement.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46142507","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

Characterization of Nano-liter Sessile Droplets By Using An Active Microwave Resonance Probe. 利用有源微波共振探针表征纳米级液滴。

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1992

C. E. Rodríguez, O. Kolokoltsev, D. Matatagui, N. Qureshi, C. Ordóñez

引用次数: 0

Performance simulation of water turbines by using 6-DoF UDF and sliding mesh methods 基于六自由度UDF和滑动网格法的水轮机性能仿真

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1568

Edwin Lenin Chica Arrieta, J. Betancour, L. Velásquez, A. Rubio Clemente

引用次数: 0

Dispatcher I-queue Optimization in Join Idle Queue Algorithm for Improved Load Balancing in Cloud Computing 云计算中加入空闲队列算法中的Dispatcher I-queue优化

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1621

Sudha Narang

引用次数: 0

Design of an Integrated Automation & Control System Using Petri Nets: Case Study 基于Petri网的集成自动化控制系统设计:案例研究

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1562

J. R. Núñez-Álvarez, I. Benítez-Pina, G. Acosta-Montoya, Alfredo Pino-Escalona, Luisa Villafuela-Loperena

{"title":"Design of an Integrated Automation & Control System Using Petri Nets: Case Study","authors":"J. R. Núñez-Álvarez, I. Benítez-Pina, G. Acosta-Montoya, Alfredo Pino-Escalona, Luisa Villafuela-Loperena","doi":"10.22201/icat.24486736e.2023.21.2.1562","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1562","url":null,"abstract":"El Sistema de Control y Automatización Integrado (IACS) basado en el control de eventos discretos mediante redes de Petri (PN) que abarca el diseño, análisis y validación de modelos de sistemas de bombeo industrial no se utilizan comúnmente. Nuestro caso de estudio es el diseño e implementación de un sistema de supervisión utilizando el software GHENeSys PN y EROS en la Estación de Bombeo \"San Juan\" en Santiago de Cuba, Cuba. Estas herramientas permiten describir los modelos de los estados del proceso automático local y el funcionamiento del Supervisor, para tener en cuenta, las funciones de Mantenimiento Preventivo y Tratamiento de Alarmas. El IACS parte de la simulación MatLab de los lazos de control principales y utiliza la red jerárquica extendida GHENeSys para modelar un sistema de automatización integrado estructurado modularmente que responde a las demandas funcionales sincronizadas. Esta metodología tiene las ventajas de una modularidad jerárquica completa desde el control local hasta la gestión de producción, varias herramientas modulares de verificación y validación y compatibilidad total con IEC61131. Esto reduce los errores de diseño y el tiempo de implementación con una mayor eficiencia de integración.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42341630","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

Prediction of weather forecasting using artificial neural networks 人工神经网络在天气预报中的应用

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1698

A. Ajina, Jaya Christiyan K G, Dheerej N Bhat, Kanishk Saxena

引用次数: 0

Improved Real Time Target Tracking System Based on Cam-shift and Kalman Filtering Techniques 基于凸轮移位和卡尔曼滤波技术的改进实时目标跟踪系统

Journal of Applied Research and Technology Pub Date : 2023-04-27 DOI: 10.22201/icat.24486736e.2023.21.2.1565

H. Fiyad, M. Abozied, H. Metwally, Mohamed Abd El-Hameed Abd El-Naeem

{"title":"Improved Real Time Target Tracking System Based on Cam-shift and Kalman Filtering Techniques","authors":"H. Fiyad, M. Abozied, H. Metwally, Mohamed Abd El-Hameed Abd El-Naeem","doi":"10.22201/icat.24486736e.2023.21.2.1565","DOIUrl":"https://doi.org/10.22201/icat.24486736e.2023.21.2.1565","url":null,"abstract":"This paper presents an improved real time target tracking system based on Cam-Shift and advanced Kalman filter algorithms. The paper, proposes a simple low implementation cost scheme while keeping the high tracking performance. Two degrees of freedom target tracking system based on two hybrid stepper motors with their drive systems is fully designed and implemented to improve the tracking accuracy while keeping low-cost. The potential of the proposed algorithm lies in its ability to accurately detect, track and produce firing commands on the designated target while utilizing low cost on the shelf embedded Microcontroller boards. A low cost Universal Serial Port (USB) camera is used and integrated with the proposed algorithm in order to detect and track maneuvering targets. A series of experiments for stationary and moving objects are carried out for testing the proposed system efficiency. The proposed system enables accurate performance for tracking static and moving objects. Hence it provides a simple and low implementation cost scheme for real time object tracking applications.","PeriodicalId":15073,"journal":{"name":"Journal of Applied Research and Technology","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41611299","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