Now a day’s weight plays a very important role in aircraft industries. The reason behind this is efficient & effective working of aircraft. It also needs the high strength to weight ratio. This requirement is fulfilled by the composites. In this research, GLARE is a hybrid composite consisting of thin aluminum, glass fiber & epoxy layer. GLARE materials have been using over 36 years for wide range of advance aerospace structural applications. GLARE laminates offer a distinctive amalgamation of properties such as outstanding fatigue resistance, high specific static properties, exceptional impact resistance, good flame resistance, corrosion resistance and ease of manufacture and repair. But the delaminating occurs in the sheets of aluminum and similarly aluminum wire mesh is used. Solicitation of GLARE materials for the skin or the outer parts here presented the need of GLARE materials in supportive structural members; the present work focuses on the fabrication various structural cross sections of glare material. For fabrication purpose, selected method is hand lay-up. Static & dynamic analysis of these glare material cross sections was carried out; it follows a comparative study with the aluminum cross sections gives that the glare has a better performance.
{"title":"Experimental Investigation of Static & Dynamic Loading Conditions for Glare Material","authors":"Pooja Patil, V. G. Salunkhe, P. S. Patil","doi":"10.2139/ssrn.3101692","DOIUrl":"https://doi.org/10.2139/ssrn.3101692","url":null,"abstract":"Now a day’s weight plays a very important role in aircraft industries. The reason behind this is efficient & effective working of aircraft. It also needs the high strength to weight ratio. This requirement is fulfilled by the composites. In this research, GLARE is a hybrid composite consisting of thin aluminum, glass fiber & epoxy layer. GLARE materials have been using over 36 years for wide range of advance aerospace structural applications. GLARE laminates offer a distinctive amalgamation of properties such as outstanding fatigue resistance, high specific static properties, exceptional impact resistance, good flame resistance, corrosion resistance and ease of manufacture and repair. But the delaminating occurs in the sheets of aluminum and similarly aluminum wire mesh is used. Solicitation of GLARE materials for the skin or the outer parts here presented the need of GLARE materials in supportive structural members; the present work focuses on the fabrication various structural cross sections of glare material. For fabrication purpose, selected method is hand lay-up. Static & dynamic analysis of these glare material cross sections was carried out; it follows a comparative study with the aluminum cross sections gives that the glare has a better performance.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125500987","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}
This paper investigates the effect of scientific knowledge on the performance of biotechnology and pharmaceutical companies. While sourcing knowledge from scientific community is a common strategy of open innovation, biotechnology and pharmaceutical companies show particularly strong dependence on scientific knowledge than companies in other industries. In such strong science-linkage regime, the relation between science linkage and firm financial performance is more complex than what is generally assumed. From the perspective of absorptive capacity, we argue that knowledge accumulation and knowledge combination preference both affect a firm’s ability to gain higher commercial benefits from scientific knowledge. We use patent citation data to empirically test our hypotheses. The results indicate that science linkage alone has positive effect on firm performance. The positive effect will be increased when firms have knowledge combination preference on more self-citation and longer technology cycle time. How...
{"title":"Gaining from Scientific Knowledge: The Role of Knowledge Accumulation and Knowledge Combination","authors":"Chia-I Kuo, Chia-Hung Wu, B. Lin","doi":"10.1111/radm.12322","DOIUrl":"https://doi.org/10.1111/radm.12322","url":null,"abstract":"This paper investigates the effect of scientific knowledge on the performance of biotechnology and pharmaceutical companies. While sourcing knowledge from scientific community is a common strategy of open innovation, biotechnology and pharmaceutical companies show particularly strong dependence on scientific knowledge than companies in other industries. In such strong science-linkage regime, the relation between science linkage and firm financial performance is more complex than what is generally assumed. From the perspective of absorptive capacity, we argue that knowledge accumulation and knowledge combination preference both affect a firm’s ability to gain higher commercial benefits from scientific knowledge. We use patent citation data to empirically test our hypotheses. The results indicate that science linkage alone has positive effect on firm performance. The positive effect will be increased when firms have knowledge combination preference on more self-citation and longer technology cycle time. How...","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128993355","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}
The shedding of silicon oil drops from a glass surface due to water cross flow is presented. The surface was placed inside a rectangular channel filled with water, and on top of the surface a drop of given size was placed. Various sizes of the drops were used for the experiment. The flow of water was gradually increased so that the drop sheds when the drag and the adhesion balance each other. The cross-flow velocity of water at that point was called the critical velocity. The critical velocity was found to decrease with increase in drop size. The contact lengths and heights were found to increase with the drop size. The increase in the contact length increases the adhesion, but the increase in height raises the drag applied. Hence the critical velocity decreases.
{"title":"Shedding of Oil Drops From a Glass Surface Due to Water Cross Flow","authors":"Lukesh Kumar Mahato, R. Goswami, D. K. Mandal","doi":"10.2139/ssrn.3101280","DOIUrl":"https://doi.org/10.2139/ssrn.3101280","url":null,"abstract":"The shedding of silicon oil drops from a glass surface due to water cross flow is presented. The surface was placed inside a rectangular channel filled with water, and on top of the surface a drop of given size was placed. Various sizes of the drops were used for the experiment. The flow of water was gradually increased so that the drop sheds when the drag and the adhesion balance each other. The cross-flow velocity of water at that point was called the critical velocity. The critical velocity was found to decrease with increase in drop size. The contact lengths and heights were found to increase with the drop size. The increase in the contact length increases the adhesion, but the increase in height raises the drag applied. Hence the critical velocity decreases.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122353331","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}
Here we are discussing some scientific articles about the use of 3D printing in creating new metamaterials. As we will see from this literature, the printing on-demand seems to be the best manner to have materials possessing specific properties, that is, to have metamaterials on demand.
{"title":"Metamaterials on Demand: The Use of 3D Printing to Create New Metamaterials","authors":"Amelia Carolina Sparavigna","doi":"10.2139/ssrn.3031417","DOIUrl":"https://doi.org/10.2139/ssrn.3031417","url":null,"abstract":"Here we are discussing some scientific articles about the use of 3D printing in creating new metamaterials. As we will see from this literature, the printing on-demand seems to be the best manner to have materials possessing specific properties, that is, to have metamaterials on demand.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123423169","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}
The purpose of this paper is to determine the impact of service quality perceived by science, technology, engineering and mathematics (STEM) and informationcommunication (IC) students of the University ofRijeka Departments on students' satisfaction and positive word-of-mouth. Based on the extensive literature review, the survey method was used to explore the relationships between the following variables: service quality, students' satisfaction, and word-of-mouth. The data were collected through an online self-administrated structured questionnaire administered to undergraduate and graduate STEM and IC students of the University of Rijeka Departments using Google Docs Forms. The findings provide some important insights into how the service quality impacts the students' satisfaction and word-of-mouth, in a Croatian higher education context. A high positive significant impact of service quality on students' satisfaction and word-of-mouth clearly indicates that it is an imperative for higher education sector. Based on the results and remarks of this study improvements can be planned and concluded across all dimensions. Policy makers in the industry in general and in the higher education sector, in particular, may benefit from the findings of this study.
{"title":"The Impact of Service Quality on Students' Satisfaction and the Word-of-Mouth: The Case of the University of Rijeka Departments","authors":"Dunja Meštrović","doi":"10.2139/ssrn.3282466","DOIUrl":"https://doi.org/10.2139/ssrn.3282466","url":null,"abstract":"The purpose of this paper is to determine the impact of service quality perceived by science, technology, engineering and mathematics (STEM) and informationcommunication (IC) students of the University ofRijeka Departments on students' satisfaction and positive word-of-mouth. Based on the extensive literature review, the survey method was used to explore the relationships between the following variables: service quality, students' satisfaction, and word-of-mouth. The data were collected through an online self-administrated structured questionnaire administered to undergraduate and graduate STEM and IC students of the University of Rijeka Departments using Google Docs Forms. The findings provide some important insights into how the service quality impacts the students' satisfaction and word-of-mouth, in a Croatian higher education context. A high positive significant impact of service quality on students' satisfaction and word-of-mouth clearly indicates that it is an imperative for higher education sector. Based on the results and remarks of this study improvements can be planned and concluded across all dimensions. Policy makers in the industry in general and in the higher education sector, in particular, may benefit from the findings of this study.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126701032","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}
The use of electronic devices is increasing day by day in form of static as well as dynamic devices and simultaneously the energy consumption of these devices is increasing because of requirement of information processed is increasing. There is a social need to reduce the power consumption of these devices. Over four decades the efforts of minimizing the transistor size for new and minimized products has introduced new challenges in designing the transistors. As per the technology roadmap for semiconductors, the reduction in power consumption of the MOSFETs used in today's electronic circuits is reaching the fundamental limit and these days new type of device structures are being investigated as possible replacements for traditional metal-oxide-semiconductor field effect transistors (MOSFETs).
{"title":"Investigation into Enhancing the Gate Electric Field of Transistor","authors":"S. Dahiya, Pawan Kumar Singhal","doi":"10.2139/ssrn.2763424","DOIUrl":"https://doi.org/10.2139/ssrn.2763424","url":null,"abstract":"The use of electronic devices is increasing day by day in form of static as well as dynamic devices and simultaneously the energy consumption of these devices is increasing because of requirement of information processed is increasing. There is a social need to reduce the power consumption of these devices. Over four decades the efforts of minimizing the transistor size for new and minimized products has introduced new challenges in designing the transistors. As per the technology roadmap for semiconductors, the reduction in power consumption of the MOSFETs used in today's electronic circuits is reaching the fundamental limit and these days new type of device structures are being investigated as possible replacements for traditional metal-oxide-semiconductor field effect transistors (MOSFETs).","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129002304","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}
Maria Frangos, Joshua M. Pearce, T. Brastaviceanu, Ahmed Aki Mahmoud, Abran Khalid
Open source hardware (OSH) development has been gaining momentum in recent years with several communities attempting to formalise its various aspects. One particularly promising area is the design of open source scientific hardware. Previous work has shown that the use of digital fabrication techniques has allowed scientists to make high-quality scientific tools for 1-10% of the cost of commercial proprietary equipment. Open source scientific hardware (and the open science movement in which it is situated) is part of a larger social shift characterised by open production methodologies, and decentralised and distributed models of collaboration. Design is also increasingly involved in supporting open production, both in terms of designing and developing technical infrastructures, and in terms of encouraging and sustaining processes that promote collaboration and openness. This paper builds on the work of open source scientific hardware and emerging concepts in participatory design with a focus on commons-based peer production. How do open production environments foster engagement and innovation? Can distributed modes of production support the design of open source scientific hardware? To answer these questions, a design research case study was undertaken to investigate the design and social impact of a collaboratively designed open source hardware instrument developed by Sensorica, an open value network, in collaboration with an academic laboratory. The project’s goal was to engage with makers and communities around the world in order to encourage its wider adoption, future evolution and continued development.
{"title":"Democratising Design in Scientific Innovation: Application of an Open Value Network to Open Source Hardware Design","authors":"Maria Frangos, Joshua M. Pearce, T. Brastaviceanu, Ahmed Aki Mahmoud, Abran Khalid","doi":"10.2139/ssrn.3331281","DOIUrl":"https://doi.org/10.2139/ssrn.3331281","url":null,"abstract":"Open source hardware (OSH) development has been gaining momentum in recent years with several communities attempting to formalise its various aspects. One particularly promising area is the design of open source scientific hardware. Previous work has shown that the use of digital fabrication techniques has allowed scientists to make high-quality scientific tools for 1-10% of the cost of commercial proprietary equipment. Open source scientific hardware (and the open science movement in which it is situated) is part of a larger social shift characterised by open production methodologies, and decentralised and distributed models of collaboration. Design is also increasingly involved in supporting open production, both in terms of designing and developing technical infrastructures, and in terms of encouraging and sustaining processes that promote collaboration and openness. \u0000 \u0000This paper builds on the work of open source scientific hardware and emerging concepts in participatory design with a focus on commons-based peer production. How do open production environments foster engagement and innovation? Can distributed modes of production support the design of open source scientific hardware? To answer these questions, a design research case study was undertaken to investigate the design and social impact of a collaboratively designed open source hardware instrument developed by Sensorica, an open value network, in collaboration with an academic laboratory. The project’s goal was to engage with makers and communities around the world in order to encourage its wider adoption, future evolution and continued development.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-02-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115788143","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}
"Big Data is the oil of the new economy" is the most famous citation during the three last years. It has even been adopted by the World Economic Forum in 2011. Upstream is no stranger to Big Data. Understanding and leveraging data in the upstream segment enables firms to remain competitive throughout planning, exploration, delineation, and field development. Oil & Gas Companies conduct advanced geophysics modeling and simulation to support operations where Seismic generate significant data during exploration phases. They closely monitor the performance of their operational assets. To do this, they use thousands sensors in subsurface wells and surface facilities to provide continuous and real-time monitoring of assets and environmental conditions. Unfortunately, this information comes in various and complex forms, making it a challenge to collect, interpret, and leverage. Big Data technologies integrate common and disparate data sets to deliver the right information at the right time to the correct decision-maker. These capabilities help firms act on large volumes of data, optimizing all phases of exploration, development and production. Big Data ensure safer, more responsible operations. The aim of this paper is to explain how to use Big Data technologies to optimize operations. How can Big Data help experts to decision-making leading the desired outcomes?
{"title":"How to Use Big Data Technologies to Optimize Operations in Upstream Petroleum Industry","authors":"Abdelkader Baaziz, L. Quoniam","doi":"10.5585/iji.v1i1.4","DOIUrl":"https://doi.org/10.5585/iji.v1i1.4","url":null,"abstract":"\"Big Data is the oil of the new economy\" is the most famous citation during the three last years. It has even been adopted by the World Economic Forum in 2011. Upstream is no stranger to Big Data. Understanding and leveraging data in the upstream segment enables firms to remain competitive throughout planning, exploration, delineation, and field development. Oil & Gas Companies conduct advanced geophysics modeling and simulation to support operations where Seismic generate significant data during exploration phases. They closely monitor the performance of their operational assets. To do this, they use thousands sensors in subsurface wells and surface facilities to provide continuous and real-time monitoring of assets and environmental conditions. Unfortunately, this information comes in various and complex forms, making it a challenge to collect, interpret, and leverage. Big Data technologies integrate common and disparate data sets to deliver the right information at the right time to the correct decision-maker. These capabilities help firms act on large volumes of data, optimizing all phases of exploration, development and production. Big Data ensure safer, more responsible operations. The aim of this paper is to explain how to use Big Data technologies to optimize operations. How can Big Data help experts to decision-making leading the desired outcomes?","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116740918","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}
Reference models, sometimes called with other different words, prepare a general model from a specific view of the related environment. Reference models are considered as a basic foundation to create: 1) a common language among specialists 2) a reference for the entities such as processes 3) relationships among entities 4) tools and decision making procedures for the real world. In this report, it's tried the definitions of reference model in the selected papers have been reviewed. It's noticeable that in many papers the term of framework is used instead of reference model. Also, applications of reference models are reviewed and finally future studies are suggested.
{"title":"Application of Reference Models in Technology Management","authors":"Farshad Madani","doi":"10.2139/ssrn.3022869","DOIUrl":"https://doi.org/10.2139/ssrn.3022869","url":null,"abstract":"Reference models, sometimes called with other different words, prepare a general model from a specific view of the related environment. Reference models are considered as a basic foundation to create: 1) a common language among specialists 2) a reference for the entities such as processes 3) relationships among entities 4) tools and decision making procedures for the real world. In this report, it's tried the definitions of reference model in the selected papers have been reviewed. It's noticeable that in many papers the term of framework is used instead of reference model. Also, applications of reference models are reviewed and finally future studies are suggested.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2012-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132355373","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}
Business Angels (BAs) play a crucial role in the creation and growth of entrepreneurial ventures. Little is known, however, about their funding criteria. This paper contributes to our understanding of BAs’ funding decisions, by analyzing how their past investments influence the choices of their future investments. We hypothesize that experiential learning processes lead BAs to search for start-ups that are similar to their most recent investments. Using longitudinal data from BAs active in the Internet industry, we find that BAs make trade-offs between geographical proximity and industry similarity when choosing future investments. They tend to invest in ventures that are geographically proximate to their prior investments, but not in the same industry. As geographical distance increases, BAs’ next investment is more likely to be in the same industry sector as the prior investment.
{"title":"The Influence of Geographical Proximity and Industry Similarity in a Business Angel’s Investment Choice","authors":"L. Berchicci, J. Block, Philipp G. Sandner","doi":"10.2139/ssrn.1964618","DOIUrl":"https://doi.org/10.2139/ssrn.1964618","url":null,"abstract":"Business Angels (BAs) play a crucial role in the creation and growth of entrepreneurial ventures. Little is known, however, about their funding criteria. This paper contributes to our understanding of BAs’ funding decisions, by analyzing how their past investments influence the choices of their future investments. We hypothesize that experiential learning processes lead BAs to search for start-ups that are similar to their most recent investments. Using longitudinal data from BAs active in the Internet industry, we find that BAs make trade-offs between geographical proximity and industry similarity when choosing future investments. They tend to invest in ventures that are geographically proximate to their prior investments, but not in the same industry. As geographical distance increases, BAs’ next investment is more likely to be in the same industry sector as the prior investment.","PeriodicalId":198407,"journal":{"name":"IRPN: Science","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130208637","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}
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