Nexo Revista Científica最新文献_第4页

Analysis of credit risk assessment models to ensure the economic security of an organization in the context of digitalization 分析数字化背景下保障组织经济安全的信用风险评估模型

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16453

I. Kiseleva, A. Tramova, Tatiana Kalmykova, Andrey Koryakovsky

引用次数: 0

Economic and statistical analysis of industrial production in the North Caucasian Federal District of the Russian Federation 俄罗斯联邦北高加索联邦区工业生产的经济和统计分析

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16458

Anna Ter-Grigoryants, E. Shelukhina, G. Leonova, V. Statsenko

引用次数: 0

Análisis del proceso agroindustrial y valoración energética de la palma africana (Elaeis Guineensis Jacq) en Honduras 洪都拉斯非洲棕榈(Elaeis Guineensis Jacq)的农工业过程分析和能源评估

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16466

Fredy Torres Mejía, Juan Alexander Torres Mejía, Laura Mariela Cantarero Reyes

{"title":"Análisis del proceso agroindustrial y valoración energética de la palma africana (Elaeis Guineensis Jacq) en Honduras","authors":"Fredy Torres Mejía, Juan Alexander Torres Mejía, Laura Mariela Cantarero Reyes","doi":"10.5377/nexo.v36i03.16466","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16466","url":null,"abstract":"Se desarrolló el análisis del proceso de la Palma Africana (Elaeis Guineensis) en Honduras, elaborándose la descripción del proceso, y construcción del balance de materia en cada una de sus etapas, en Honduras hay 190000 Ha de palma sembrada, siendo el segundo cultivo principal del país después del café. En el proceso el producto se recibe, pasa a la etapa de la esterilización de racimos de fruta fresca, luego los raquis es desfrutado, y los sólidos se separan de los líquidos de la parte del racimo de la palma, luego pasa a clarificación donde se separan los líquidos inmiscibles y los residuos que queden en el aceite a este proceso entra solo la parte liquida del proceso anterior con un valor determinado, para obtener el aceite listo para su refinado, después se pasa al desfibrado, aquí se toma la parte solida del proceso de extracción y sale un producto utilizable para el siguiente proceso, donde obtienen los subproductos de fibra y almendra, después pasa al proceso de recuperación de la almendra conformado por subproductos de evaporación y cascara; en el proceso de refinado el aceite cambia al color amarillo pálido al color amarillo, que posteriormente se pasa al filtrado consiste en la descarga mecánica de la tierra utilizada en el blanqueo y la máxima recuperación del aceite. En el desodorizado sales los ácidos grasos, que finalmente sigue la fase de fraccionamiento donde de alimentan con antioxidante para obtener aceite RBD. De este cultivo se puede obtener como energía primaria 83655.94 MJ/ha-año., de los cuatro principales subproductos, energía equivalente anual a 4.41TEP, y 13.62 Ton CO2 eq, y 31.75 BEP; el proceso de obtención de aceite de palma africana produce gran cantidad de biomasa, los cuales deben ser aprovechados biocombustibles, ya que representan una buena fuente de energía limpia.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115268747","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

Improving the efficiency of management decision-making: developing a simulation model of a cultivated mushroom farm 提高管理决策的效率:开发一个蘑菇栽培场的模拟模型

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16460

Alexey Nabokikh, Alexandra V. Ryattel

{"title":"Improving the efficiency of management decision-making: developing a simulation model of a cultivated mushroom farm","authors":"Alexey Nabokikh, Alexandra V. Ryattel","doi":"10.5377/nexo.v36i03.16460","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16460","url":null,"abstract":"Industrial production of edible mushrooms is now regarded as an independent agricultural industry not dependent on the seasonality of work inherent in most agricultural operations. Since agricultural production is characterized by high consumption of resources, cultivation and harvesting of mushroom produce are carried out by means of specialized technical and technological equipment, allowing one to provide the necessary microclimate conditions. These issues can be solved by using intensive technological resource-saving processes, which provide a sufficient level of production profitability. In this regard, there is a need to develop an economic-mathematical model able to simulate the process of the enterprise as an example. The study aims to develop a simulation model of a mushroom farm to improve the effectiveness of management decisions. The study employs the AnyLogic simulation instrument to create a model and test its accuracy with the cultivation of Pleurotus ostreatus oyster mushrooms. The authors develop a model of a farm for growing cultivated mushrooms and describe the created model, the algorithm of its operation, and the created interface. This model gives an idea about the optimal conditions for the cultivation of mushrooms and can be used for decision-making in techno-management complexes.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123668943","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

Opportunities and challenges in preserving intellectual and human capital: strategies for readiness in a complex socio-economic context 保护智力和人力资本的机遇与挑战:复杂社会经济背景下的准备战略

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16457

Anna Loseva, I. Balashova, O. Lymareva, A. Prikhodko, S. Gayazova, Aleksandr Shelygov

{"title":"Opportunities and challenges in preserving intellectual and human capital: strategies for readiness in a complex socio-economic context","authors":"Anna Loseva, I. Balashova, O. Lymareva, A. Prikhodko, S. Gayazova, Aleksandr Shelygov","doi":"10.5377/nexo.v36i03.16457","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16457","url":null,"abstract":"The study aims to develop measures to reduce the outflow (migration) of young people and improve human capital in the face of global complex socio-economic landscape. The paper determines strategic priorities for state regulation of youth migration processes. It is concluded that instruments for regulating youth migration and preserving intellectual and human resource potential should be directed toward reducing the level of positive migration aspirations among student and apprentice youth, ensuring employment and effective remuneration of labor. The system of preventive public policy instruments for managing youth migration includes efforts to increase employment, develop the micro and small business sector, raise the level of readiness of migrant youth to re-emigrate, enhance the competitiveness of the educational sector, and create international projects to develop human capital. Additionally, the study advocates for improving the competitiveness of the educational sector and fostering international projects that contribute to human capital development.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121200085","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

Using the band ratio approach, FULL-PIXEL (SAM and SFF) and SUB-PIXEL (MF and SID) methodologies to discover areas with alteration using the Aster sensor: a case study in north westen Iran - Sivardaghi Area 利用波段比法、全像素(SAM和SFF)和亚像素(MF和SID)方法，利用Aster传感器发现变化区域:以伊朗西北部Sivardaghi地区为例

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16464

M. Bagheri, Afshin Ashja Ardalan, A. Ganji, S. H. Asiabar, Mohammad Ali Arin

{"title":"Using the band ratio approach, FULL-PIXEL (SAM and SFF) and SUB-PIXEL (MF and SID) methodologies to discover areas with alteration using the Aster sensor: a case study in north westen Iran - Sivardaghi Area","authors":"M. Bagheri, Afshin Ashja Ardalan, A. Ganji, S. H. Asiabar, Mohammad Ali Arin","doi":"10.5377/nexo.v36i03.16464","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16464","url":null,"abstract":"ASTER sensor data is among the most potent satellite data accessible for doing geological investigations, with images for the whole earth's surface. In order to test the capability of this sensor to detect places with geochemical alterations, photographs of Mount Seiver Daghi in the western Iranian province of Samal were utilized in this study. This region, which comprises of magmatic and volcanic terrain, is part of the Arsbaran territory and is covered by intrusive masses with alluvial and sedimentary deposits. To conduct this study, an ASTER measuring frame was utilized, which, after performing atmospheric corrections using the internal average relative reflectance (IARR) method of false color composite images and principal component analysis (PCA), was able to differentiate between different lithological units using the Band assignment method, full-pixel methods of spectral angle mapper (SAM) and base spectrum algorithm of spectral feature fitting (SFF) as well as sub-pixel methods of matched filtering. The study demonstrates that the approach of principal component analysis and false color composition is efficient for distinguishing sedimentary rock units from igneous rock units, and its application is suggested for the designated rock units. Due to the lack of spectral characteristics of feldspars and quartz in the short infrared wavelength range, the basic spectrum methods utilized in this work are incapable of identifying such minerals. It is not advised to use these algorithms to distinguish between various magmatic units.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132322488","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 the formulated cream and powder during the spray drying process of hebernem-s product 异黄酮产品喷雾干燥过程中配方乳膏和粉末的表征

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16450

Yunier Luis Paneque Díaz, Rutdali María Segura Silva, Nemecio González Fernández, Jesus Zamora Sanchez, Eikel Pérez González, Lourdes Mariana Crespo Zafra, Aylin Nordelo Valdivia, Amaury Pérez Sánchez

{"title":"Characterization of the formulated cream and powder during the spray drying process of hebernem-s product","authors":"Yunier Luis Paneque Díaz, Rutdali María Segura Silva, Nemecio González Fernández, Jesus Zamora Sanchez, Eikel Pérez González, Lourdes Mariana Crespo Zafra, Aylin Nordelo Valdivia, Amaury Pérez Sánchez","doi":"10.5377/nexo.v36i03.16450","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16450","url":null,"abstract":"Spray drying is increasingly investigated and widely applied in different industrial fields due to the diversity of the dried products that are obtained. In the present work, we determined the average diameter and area of Tsukamurella paurometabola C-924 cells contained in the formulated cream before the drying stage; the viability of the cream at different temperatures (10, 20 and 30 °C) and times (6, 15 and 24 hours); the diameter of HeberNem-S powder particles after spray drying; the stability of the HeberNem-S product at near ambient temperatures without applying vacuum conditions; and the adsorption isotherms of the HeberNem-S product. The area of the T. paurometabola cells had an average value of 3.154 µm2, while the average diameter was 3.208 µm. The average diameter of the dehydrated powder particles of the HeberNem-S product was 39.203 μm. In the temperature range from 10 to 30 °C, storage time has a greater influence than temperature on survival, while the survival is less than 0.9 after 10 hours of storage. In order for the HeberNem-S product to meet the quality specifications, it must be packaged in an environment with relative moisture less than 60%.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127966546","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

Precipitación mensual en Nicaragua a partir de productos satelitales 尼加拉瓜卫星产品的月降雨量

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16444

M. E. Blanco Chávez

{"title":"Precipitación mensual en Nicaragua a partir de productos satelitales","authors":"M. E. Blanco Chávez","doi":"10.5377/nexo.v36i03.16444","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16444","url":null,"abstract":"Las precipitaciones varían espacial y temporalmente, lo que hace que sea difícil obtener mediciones representativas en zonas remotas del país donde hay muy pocas estaciones meteorológicas instaladas. El desarrollo de la teledetección satelital ha permitido hacer estimaciones de la precipitación a diferentes escalas de tiempo y en cualquier punto geográfico, por lo que se pueden desarrollar sus estimaciones a escalas mensuales y anuales. El objetivo de este trabajo fue estimar los mapas de precipitaciones mensuales y anuales en la República de Nicaragua a partir de datos de precipitación mensual del producto MERRA-2 de la NASA. Se utilizaron 155 puntos distribuidos en el país con información de precipitación mensual obtenidos de la plataforma The POWER Project de la NASA. Se compararon los datos de precipitación máxima diaria anual de la estación Aeropuerto de Managua con los datos del producto MERRA-2, obteniéndose muy baja correlación, por lo que no es satisfactorio su uso para estimar precipitaciones máximas diarias. Se compararon los datos de precipitación mensual de los registros de 19 estaciones pluviométricas con los datos del producto MERRA-2, obteniéndose coeficientes de determinación R2 en el rango de 0.56 a 0.79, por lo que se considera que la precipitación estimada por los productos MERRA-2 reproduce adecuadamente las precipitaciones mensuales registradas por los pluviómetros.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117258093","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

Application of innovative biological agents for sustainable corn farming 创新生物制剂在玉米可持续种植中的应用

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16456

I. Agasyeva, V. Ismailov, M. Nefedova, A. Nastasiy, Ekaterina Goloborodko, Viktor Petrischev

{"title":"Application of innovative biological agents for sustainable corn farming","authors":"I. Agasyeva, V. Ismailov, M. Nefedova, A. Nastasiy, Ekaterina Goloborodko, Viktor Petrischev","doi":"10.5377/nexo.v36i03.16456","DOIUrl":"https://doi.org/10.5377/nexo.v36i03.16456","url":null,"abstract":"Corn, being the most important crop globally, requires effective protection against pests while maintaining environmental sustainability. This study focuses on the development of environmentally friendly methods for biological control of major corn pests. The research investigates the combined use of pheromones, entomopathogenic preparations, and parasitic Hymenoptera, such as Trichogramma evanescens West and Habrobracon hebetor Say, to combat pests. The seasonal dynamics and abundance of cotton moth (Helicoverpa armigera) and click beetle (Athous tauricus) were monitored using pheromone traps. The number of corn moth (Ostrinia nubilalis) caterpillars was recorded, and mass breeding of the ectoparasite Habrobracon hebetor was conducted for biological control. The effectiveness of the integrated approach, combining entomophages and biological preparations, was evaluated. The study demonstrates satisfactory effectiveness in biological protection, with significant reductions in corn moth and cotton moth populations. These findings highlight the potential of environmentally friendly techniques for pest control in corn crops, contributing to sustainable agricultural practices.","PeriodicalId":335817,"journal":{"name":"Nexo Revista Científica","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130766414","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

Thermo-hydraulic rating of a gasketed-plate heat exchanger for methanol heating 甲醇加热用垫片式热交换器的热水力等级

Nexo Revista Científica Pub Date : 2023-06-30 DOI: 10.5377/nexo.v36i03.16448

Amaury Pérez Sánchez, Helen María Alfonso Fernández, G. I. Valero Almanza, Elizabeth Ranero González, E. J. Pérez Sánchez

引用次数: 0