IBM Journal of Research and Development最新文献

{"title":"Analysis of wear for a base Steel 5% Cr, applying 392 N of load and variable speed of 0.18 m/s, 0.36 m/s and 0.54 m/s, using the T05 Block-on-ring wear tester machine","authors":"Calvin Jacob OROZCO-GARCÍA, R. Servin-Castañeda, Sandra Maria SAN MIGUEL-IZA, Roberto Aldo GONZÁLEZ-ZARAZUA","doi":"10.35429/jrd.2022.21.8.1.5","DOIUrl":"https://doi.org/10.35429/jrd.2022.21.8.1.5","url":null,"abstract":"In the present study, an experimental analysis of the friction forces, speeds and friction coefficients that influence the size of the wear track in a steel exposed to mechanical contact was carried out, for this, steel blocks with an alloying element of. 5% Cr base and D2 steel standard ring, representing the Block-on-Disk method, according to the ASTM D2714 standard were used. The test parameters were: 392N load, for 800 seconds, with variable speeds of 0.18 m/sec, 0.36 m/sec and 0.54 m/sec; the test is performed in a dry environment using the T-05 Block-on-Ring wear tester machine. This analysis contributes to the technological development of a material that has a lower coefficient of friction and therefore improves its mechanical properties for systems exposed to this principle, such as the wheels of traveling cranes or railway trains, diesel machinery transport systems and various services, etc.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91357994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Proposals to improve the coaxial cable assembly process in an aerospace company","authors":"Javier Portugal-Vásquez, Melissa Sandoval-Gamez, E. A. Lagarda-Leyva, A. A. Naranjo-Flores","doi":"10.35429/jrd.2021.20.7.27.38","DOIUrl":"https://doi.org/10.35429/jrd.2021.20.7.27.38","url":null,"abstract":"For any company it is of utmost importance to have quality processes and products to deliver to its customers and that they are satisfied with them. In the same way, take care of your economy and the expenses that you have for this. This project revolves around the quality that is presented in the products. In the company under study there was a problem specifically in the area of coaxial cable assembly, in which a considerable number of defects were identified from the electrical and continuity test. To solve the problem, the objective is to develop an improvement proposal that helps to minimize the defects found in the aforementioned area. Regarding the applied method, the modified Six Sigma DMAIC procedure was followed. Statistical tools were used to analyze the results obtained, to have evidence of their behavior for the problem posed and that the best decision could be made to improve the coaxial cable assembly process. Having as a main result a proposal to improve the coaxial cable assembly process which will significantly reduce the defects generated in the electrical and conductivity test.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78271305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ergonomic culture level in managers and supervisors in manufacturing centers","authors":"Mauricio López-Acosta, Allán Chacara-Montes, J. M. Velarde-Cantú, Ernesto Ramírez-Cárdenas","doi":"10.35429/jrd.2021.20.7.21.26","DOIUrl":"https://doi.org/10.35429/jrd.2021.20.7.21.26","url":null,"abstract":"The purpose of the following project is to measure the level of ergonomic culture of a manufacturing company that is dedicated to the development of cables, fiber optics, cabling systems and related services for the automotive sector and cable systems; To carry out this study, the ergonomic culture questionnaire in work centers (CCE-T) was used as a tool and it was applied to a sample of 26 people between supervisors and managers. This questionnaire made it possible to measure the level of development of ergonomic culture in work centers from the perspective of supervisors and senior management (managers) and to know their perception of the development and application of ergonomics in their company. Therefore,","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82547577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lean Manufacturing: Efficiency improvement application in multi-product area of the Aerospace Industry","authors":"Adolfo Cano-Carrasco, R. Fornés-Rivera, María del Carmen Vásquez-Torres, Arlene Amalia Guerrero-Portillo","doi":"10.35429/jrd.2021.20.7.13.20","DOIUrl":"https://doi.org/10.35429/jrd.2021.20.7.13.20","url":null,"abstract":"This research addresses the problem of leveling workloads in a multi-product final assembly area. In which it was found that 27.4% of the time is used for set up and the current distribution presents areas of opportunity. The target was to implement improvement actions to make use of resources more efficient in the production process in the aforementioned area through Lean Manufacturing tools. The results obtained consist of eight products generated with the support of lean manufacturing support tools such as SMED, Workload Balancing and MUDA waste identification, achieving important results among which productivity in the area stands out from 109% to 125%, as well as a reduction in set-up time from 17 min to 4.4 min.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74669806","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Energy efficiency using Distributed Generation; Cafeteria of Engineer Faculty Campeche, Mexico","authors":"Jorge J. Chan-Gonzalez, Isaac A. Saravia-Pérez, F. Lezama-Zarraga, Meng Yen Shih","doi":"10.35429/jrd.2021.20.7.1.12","DOIUrl":"https://doi.org/10.35429/jrd.2021.20.7.1.12","url":null,"abstract":"In the present work, an integral design of the cafeteria located at Faculty of Engineering of Autonomous University of Campeche is carried out. Four scenarios of Photo Voltaic (PV) generation have been studied. A 14 PV modules arrangement of 440 each, with azimuthal angle of 180º and a slope angle of 15º; the other is similar to the previous, but the slope angle was 19.85º. The following was a 24 PV modules arrangement of 440, with an azimuthal angle of 218º and a slope angle of 15º. The last arrangement consists of 24 PV modules arrangement of 440, with azimuthal angle of 218º and a slope angle of 19.85º. Where all of them are associated with the economic aspect to obtain greater efficiency of the plant with minimum recovery time. The free software System Advisor Model (SAM) developed by the National Renewable Energy Laboratory (NREL) has been employed. Complete seasonal analysis has also been performed considering Gran Demanda Media Ordinaria en México (GDMO de CFE in Mexico) within the period January 2020 to March 2021. The best results are energy generation 17,570 kWh. Capacity factor 19%. Energy performance 1,671 kWh/kW. Performance relation 0.74. Leveled cost 5.39 ¢/kWh. And return on investment in 0.6 years. The GD-PV plant prevents the emission into the atmosphere of 778.85 kg of CO2 equivalent.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78222450","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Perception of the Teachers Towards Virtual Class and Obstacles During Covid-19 Lockdown Phase","authors":"Uttam Sing Rai, H. Basnet","doi":"10.3126/jrdn.v4i3.39956","DOIUrl":"https://doi.org/10.3126/jrdn.v4i3.39956","url":null,"abstract":"Virtual class uses computer software and internet to deliver instruction to the students. This eliminates needs for teachers and students to share the physical classroom. Virtual learning is an emerging educational paradigm which is transforming the way students learn. However, this virgin field of research has not been studied rigorously in the context of Nepal. Considering this, the research was carried out to identify the perception of the teacher of Bhojpur Multiple Campus towards virtual class during COVID-19 lockdown phase. The research adopted quantitative design which is based on the teachers who were involved in virtual teaching during COVID-19 lockdown phase. The study applied non-random purposive sampling process to select the sample for gathering data. The researcher found out that the teachers had the positive perception towards virtual class as 68% teachers agreed with the statement that virtual class is suitable solution during COVID-19 lockdown phase because it saves time and effort. The study may contribute to the educators and the teachers who are thinking to formulate policy for applying virtual class during luck down phase when pandemic is overwhelmed across the country like COVID-19.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91216422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Antecedent of Consumer Impulsive Buying Behavior: A perspective of Developing Nation","authors":"Ugdam Mishra","doi":"10.3126/jrdn.v4i3.39955","DOIUrl":"https://doi.org/10.3126/jrdn.v4i3.39955","url":null,"abstract":"Impulsive buying concerns the unplanned decision made by consumers before buying any items. Recognizing the factors that influence consumer’s impulsive buying behavior aids retail stores to understand consumer’s decision-making process and accordingly help them design and develop courses of action. However, few studies have only been conducted in this area in context of developing nation. The purpose of this study is to identify the factors that influence impulsive buying behavior and the vital factor amongst them. After collecting 141 valid responses, the study validated the proposed conceptual model using structural equation model. AMOS 26 was used to analyze the data. Data were analyzed in two-fold: Measurement model and structural model. Three items were covaried to reach the optimal model fit revealing hedonic value and shopping enjoyment significant influence on impulsive buying. This research contributes to the knowledge about the relationship among hedonic value, marketing stimuli, shopping enjoyment and social interaction with impulsive buying behavior.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73763793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Key Areas to Economic Takeoff from Demographic Dividend: A Case of Nepal","authors":"Kewal Ram Parajuli","doi":"10.3126/jrdn.v4i3.39947","DOIUrl":"https://doi.org/10.3126/jrdn.v4i3.39947","url":null,"abstract":"Rapid demographic change in the context of age structure and basic demographic indicators have created opportunity to accelerate economic growth and development in Nepal. At the time of favorable demographic context, it is required to qualify and mobilize currently existing large volume of active years population to fulfill the mission of sustained economic development. For this, it is necessary to invest on health, education, infrastructure along with creating employment opportunities but such opportunity period is missing out due low attention on social, economic, political and cultural sectors, which may misfortune for Nepal. Focusing on the key areas of economic take off in the declined fertility context, this paper reviews literature related to reaping demographic dividend. Based on secondary data from journal articles, census and Nepal Demographic Health Survey (NDHS) results, descriptive and content analysis method is applied. National Census data from Central Bureau of Statistics (CBS) and Nepal Demographic Health Survey (NDHS) is taken as reference and some estimation from United Nations (UN) are also taken as requirement. To identify vital areas and situation to support economic take off and support to formulate and implement proper future population policy in Nepal are the main objectives of this article. Coping with socio-economic challenges need to focus on primary area of social development like education, productivity of labor, proper use of remittance to economic take off. Need to open gate for secondary demographic dividend with appropriate policy formulation in the recent context.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89403762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Professional Identity and Struggles of Basic Level English Teacher: A Critical Narrative Inquiry","authors":"Debraj Karki","doi":"10.3126/jrdn.v4i3.39945","DOIUrl":"https://doi.org/10.3126/jrdn.v4i3.39945","url":null,"abstract":"Professional development is a continuous process of learning to empower professional competency and enable teachers to be strong and competent in their professional career. The study critically explores the struggles and professional activities of basic level English teachers in professional development. Critical narrative inquiry has been used in relation to long lived experiences of a participant with a semi – structured telephonic interview. The participant narrates three distinct phases of experiences in teaching profession. The result revealed that participant was innately interested in teaching profession before involvement. But the situated school system discouraged his ideology of teaching profession even he determined to continue his profession involving in different seminars, workshop and study. However, the study further suggests that there is lack of innovating teaching profession from critical perspectives focusing the interactive and transformative environment in classroom. Therefore, the basic level teachers need to re- examine and re – construct the professional activities to address the need, interest and level of learners. Similarly, the study contributes to apply language teaching activities in terms of transformative mood rather than structured model of teaching empowering teachers as an agency.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85957984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge on Childhood Dental Caries Among Parents of Under Five Children in A Community at Biratnagar, Nepal","authors":"Sarmila Pradhan, D. Khadgi, Namita Yengden, Karishma Khadgi","doi":"10.3126/jrdn.v4i3.39954","DOIUrl":"https://doi.org/10.3126/jrdn.v4i3.39954","url":null,"abstract":"Dental caries is a major public health problem globally and is one of the most chronic diseases in children. Children are susceptible to caries as soon as the first teeth appear. Parents are the primary decision-makers in matters of children's healthcare. If the parents are knowledgeable about the child's oral health care then childhood dental caries can be prevented. The objective of this study was to identify the knowledge on childhood dental caries among parents of under five children. A descriptive, cross-sectional study was carried out among parents of under five children in a community of Biratnagar 12. Sample was selected using non probability purposive sampling method and data was collected by face-to-face interview using a self-developed, semi-structured interview guideline. Descriptive statistics i.e. frequency, percentage, mean and standard deviation was used to assess the level of knowledge and inferential statistics i.e chi square was used to find the association between dependent and independent variables. About three fourths (71%) of the parents were of age group 20-30 years and 88% of them were mothers. Most of the parents (90%) were aware that dental caries can occur in under five children and excessive sugar intake was the most common cause as reported by all of them. Only 40% knew that dental caries is transmissible and among them 97.6% responded by sharing of toothbrush. Regarding good brushing habit, most of the parents were aware. Almost all (95%) knew that proper tooth brushing helps to prevent dental caries whereas only 19% were aware about use of fluoridated tooth paste as preventive measures. Meanwhile, only 12% of the parents were aware that first dental visit should be done when first tooth erupts or within 1 year of age More than half (79%) had good knowledge on childhood dental caries but there was no association of knowledge with socio-demographic variables. The study concluded that more than half of the respondents had good knowledge on childhood dental caries and none of the socio-demographic variables were associated with the level of knowledge of parents on dental caries. Despite good knowledge, prevalence of childhood dental caries is high in our society thus reflecting the need to assess the practice of dental care.","PeriodicalId":55034,"journal":{"name":"IBM Journal of Research and Development","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2021-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84374118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}