Nexo Revista Cientifica最新文献

{"title":"Impact of employee efforts and expertise on customer surprise, delight and customer percent of budget spent: moderating role of shopping frequency","authors":"Heyam Abdulrahman Al Mousa","doi":"10.5377/nexo.v36i04.16791","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16791","url":null,"abstract":"Aim of present study is to pursuit with the abundant of resources provided by the firms to make customer satisfied and corresponding consequences which are in the favor of customers. Nevertheless, present study results indicated that customer satisfaction not necessarily in the outcome that are persuaded. In addition, study focused more on customer delight which explored innovative consequences and antecedents that are in the interest of the service firms. Study then proposed the conceptual framework and considered the links of employee expertise, employee effort to customer surprise which in turn leads to customer delight and percent of budget spent, shopping frequency is considered as moderating between customer surprise and customer delight. Data collection process were conducted in a grocery store. Study hypotheses and relationships were tested using SPSS (V.22). Findings of study shows all the considered variables are positively linked with each other.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041154","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":"Thermo-hydraulic rating of a shell and tube heat exchanger for acetone cooling using bell-delaware method","authors":"Amaury Pérez Sánchez, Alicia Maria Gómez Julián, Nadia Corpas Rodriguez, Elizabeth Ranero González, Eddy Javier Pérez Sánchez","doi":"10.5377/nexo.v36i04.16768","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16768","url":null,"abstract":"Shell and tube heat exchangers are becoming the most popular devices for the transfer of heat in industrial process applications. In the present work, the thermo-hydraulic rating of a shell and tube heat exchanger proposed to cool an acetone stream was carried out using the Bell-Delaware methodology. An overall heat transfer coefficient value of 426.70 W/m2.K, a calculated heat transfer area of 121.46 m2, and a percent excess area of 20.83% were obtained. Both the pressure drop of acetone and water had values of 1,622.36 Pa and 3,020.46 Pa, respectively. The proposed shell and tube heat exchanger can be used satisfactorily for the required application, since the percent excess area does not exceed the 25%, and the pressure drops of both fluid streams are below the limit values established by the process.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041150","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":"Uso del caos en cronogramas de llaves para un algorítmo de cifrado simétrico sin pérdida de información","authors":"Marlon David González-Ramírez, Eduardo Vega-Alvarado, Arturo Morales-Rangel","doi":"10.5377/nexo.v36i04.16750","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16750","url":null,"abstract":"Esta investigación presenta la construcción de un algoritmo de cifrado simétrico para imágenes de pixeles, a color y escala de grises sin pérdida de información y sin compresión, principalmente en formato BMP. Este algoritmo consiste en 15 rondas con intercambio de cajas (S-box), permutaciones, operaciones X-OR y llaves del tamaño de la imagen. Se utilizó la operación de mapa logístico para la generación de S-boxes y para construir un cronograma de llaves del tamaño de la imagen se utilizaron las ecuaciones de E. Lorenz, números trascendentales y la curva elíptica. Para medir la fortaleza del resultado cifrado, se utilizó la entropía de la información y la prueba de bondad obteniendo resultados favorables y muy cercanos a algoritmos similares.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041153","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":"Evaluation of seismic performance and design of AAC building systems (autoclaved aerated concrete) with different reinforcement methods","authors":"Mohammad Beiranvandi","doi":"10.5377/nexo.v36i04.16774","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16774","url":null,"abstract":"Autoclaved lightweight concrete was produced for the first time in Sweden and after several decades, it has been widely used in most of the industrialized countries of the world, especially in the construction industry. Lightness, effect in reducing forces caused by earthquakes, ease of implementation, low thermal coefficient, fire resistance and sound insulation are among the undeniable advantages of this product. The use of this concrete is very effective in optimizing fuel and energy consumption, and its high compressive strength is considered an important feature, to the extent that it has been recognized as a desirable and suitable product in the construction industry. Obviously, with the growth of demand increasingly, using traditional methods and materials for housing production in Iran is not very effective. Compilation of criteria for the design and implementation of a gravity-bearing and lateral structural system made of AAC autoclaved aerated concrete products (including reinforced blocks and panels) The structure is made based on valid international regulations and considering Iran's seismic standards as follows. Roof and floor design using reinforced AAC roof panels and the combination of AAC roof blocks and regular concrete in place reinforced with steel reinforcements after examining the principles and foundations and modeling based on logical engineering principles and assumptions to compare the results and the outputs of the software have paid. Based on the available results, we can see the effect of the number of floors, plan and height of the floor on the behavior of the structure. According to the values in the table, the probability of the structure passing through the threshold of minor, moderate, and advanced damage is examined in different states. 1- The probability of passing a 1-story structure compared to a 2-story structure from the threshold of partial, moderate, and advanced damage has decreased by 59.7%, 94.5%, 99.3, and 99.8%, respectively. 2- The probability of passing a 2-story structure compared to a 3-story structure It reduces the threshold of partial, moderate, and advanced damage by 55.7%, 93.2%, 99.0%, and 99.7%, respectively.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135040980","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":"Factors influencing training requirements in hospitals: an integrative literature perspectives","authors":"Saad AlFlayyeh, Abdullah Abdul Rahman Al-Homeed","doi":"10.5377/nexo.v36i04.16794","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16794","url":null,"abstract":"Training is not a new phenomenon and trend, but it requires continuous efforts and developments due to the dynamic change in our society. Gaps will remain if training and development programs not developed timely. Present study is the combination of Gulf and other world studies about the training and development programs to highlight the importance of training and development programs, and why it is so necessary. Contemporary study then suggests the conceptual study framework and assumed the hypotheses. In the conceptual framework, it is basically shown that there is influence of training and development programs. Some influence internally, whereas some impacts are externally. And finally it has impact on the overall organization performance.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041145","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":"Concreto celular con espuma preformada y agregados ligeros","authors":"Hugo U. Martínez Canales, Eddisson F. Hernández, Analy Meneses Meneses","doi":"10.5377/nexo.v36i04.16753","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16753","url":null,"abstract":"El propósito de este trabajo es desarrollar mezclas de concreto celular empleando espuma preformada y agregados ligeros, para la elaboración de bloques de concreto de acuerdo con lo indicado en la Norma Técnica Obligatoria Nicaragüense. Se elaboraron seis mezclas de concreto, conteniendo cal, piedra pómez y fibra de polietileno, además de espuma fabricada a partir de una disolución presurizada de Texapon N70 con agua. Se elaboraron especímenes cúbicos y cilíndricos, los cuales fueron curados en húmedo y ensayados para conocer su resistencia a la compresión a los 28 días. Los resultados indican que la naturaleza de los agregados, así como el contenido de espuma en las mezclas influyó en sus densidades. Se observó que el porcentaje de material cementante usado es directamente proporcional a su resistencia final. Los resultados obtenidos de la resistencia a la compresión son comparables con los requerimientos mínimos indicados en la norma para bloques estructurales, además de servir como aislante térmico y acústico gracias a su alto porcentaje de vacío.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041143","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":"Technologies for monitoring the activity of exogenous and endogenous processes of the black seacoast within the Krasnodar territory using the method of photographic analysis","authors":"Tatiana Volkova, Yulia Antiptseva, Nikon Klimov, Ilya Rudenko, Danil Grigorenko","doi":"10.5377/nexo.v36i04.16803","DOIUrl":"https://doi.org/10.5377/nexo.v36i04.16803","url":null,"abstract":"Morphometric, morphographic, and structural analysis should be combined since orographic features directly reflect the tectonic structure of the territory. In the study, the authors supplemented these types of analysis with the photograph analysis method which allowed them to study the relief of the coastline better. The results of the analysis showed that the close contact of the Caucasus mountain system with the Black Sea and the high dissection of the relief predetermined the intensity of economic activity on the coast. This makes it necessary to constantly monitor the activity of exogenous and endogenous processes, in particular, seismic activity, to prevent their adverse manifestations.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135041271","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":"ARIADNA: UNA COMPARACIÓN ENTRE CATULO Y OVIDIO","authors":"Ariadna Gabriela Carlos González","doi":"10.56029/nx1903","DOIUrl":"https://doi.org/10.56029/nx1903","url":null,"abstract":"Ariadna es uno de los personajes femeninos más relevantes de la mitología clásica, tanto, que muchos autores de diversos géneros literarios han hablado de ella —Eratóstenes, Plutarco, Higino, etc.—. No obstante, en este artículo hemos seleccionado dos autores de poesía latina relativamente cercanos que describen de manera bastante parecida el mito. Para hacer la comparación temática se han elegido los versos 50-266 del Carmen 64 de Catulo y la Epístola X de las Heroidas de Ovidio.","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43080977","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":"LA BITÁCORA DE CARRIAZO","authors":"N. Lorenzo","doi":"10.56029/nx1957","DOIUrl":"https://doi.org/10.56029/nx1957","url":null,"abstract":"","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42945319","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":"CROSSROADS: INTERSECCIONES E INTERSECCIONALIDADES","authors":"José Luis Panea","doi":"10.56029/nx1951","DOIUrl":"https://doi.org/10.56029/nx1951","url":null,"abstract":"","PeriodicalId":40344,"journal":{"name":"Nexo Revista Cientifica","volume":" ","pages":""},"PeriodicalIF":0.3,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46803498","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}