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Articles 1 - 9 of 9
Full-Text Articles in Engineering
Achieving Carbon Efficiency In Construction And Maintenance Of Railway Turnouts, Crossovers And Diamonds, Sakdirat Kaewunruen, Steve Krezo, Olivia Mirza, Yapping He, Joseph M. Sussman
Achieving Carbon Efficiency In Construction And Maintenance Of Railway Turnouts, Crossovers And Diamonds, Sakdirat Kaewunruen, Steve Krezo, Olivia Mirza, Yapping He, Joseph M. Sussman
Sakdirat Kaewunruen
Railway turnouts, crossovers, and diamonds are special track systems used to divert a train from a particular direction or a particular track onto other directions or other tracks. It is a structural grillage system that consists of steel rails, points, crossings, steel plates, rubber pads, insulators, fasteners, screw spikes, beam bearers (either timber, polymer, steel or concrete), ballast and formation. Usually under dynamic and high-intensity impact loading conditions, structural components of the turnout tend to have relatively short lives compared with those of ordinary open railway tracks, resulting in frequent turnout re- construction and maintenance (ranging from every 10 to …
The Last Lesson From John Nash, Sajjad Khaksari
The Last Lesson From John Nash, Sajjad Khaksari
SAJJAD KHAKSARI
John Nash died in car accident that is maybe normal without any specific message for many people but in my opinion John Nash invited me to continue my study and my research about modeling transport systems and using of his Game Theory concept to create a future world transport and logistics more modern, more safe with high technologies. Would you like to follow John’s last lesson and contribute your best to create a world full of logistics and safe public/private transport and zero dying in crash?
Not Just A Tool. Taking Context Into Account In The Development Of A Mobile App For Rural Water Supply In Tanzania, Robert Hoppe, Anne Wesselink, Rob Lemmens
Not Just A Tool. Taking Context Into Account In The Development Of A Mobile App For Rural Water Supply In Tanzania, Robert Hoppe, Anne Wesselink, Rob Lemmens
Robert Hoppe
The 'eGovernance' hype around the potential of mobile phone and geoweb technologies for enhancing 'good governance' is soaring. In East Africa, the extensive use of mobile telephony adds to the imagined promises of ICT. We reflect on the assumptions made by the proponents of such tools, using our own action research project as an example. We took great care to consider context in the development of software for enhancing empowerment and accountability in rural water supply in Tanzania. However, we found that the rural water supply context in Tanzania is much more complex than the contexts for which successful mApps …
Game Theory In Transport & Logistic World, Sajjad Khaksari
Game Theory In Transport & Logistic World, Sajjad Khaksari
SAJJAD KHAKSARI
"OV & DP and BRT" some assumptions and a Case Study for studying John Nash "Game Theory" method in logistics and transportation world and that is only a briefly attempt to get familiar with the idea. A thought which asks "Is it possible to model and analyze one of the authenticity of the transport or logistics service request with respect to the Game Theory optimization idea?
Is There A Relationship Between Research Sponsorship And Publication Impact? An Analysis Of Funding Acknowledgments In Nanotechnology Papers, Jue Wang, Philip Shapira
Is There A Relationship Between Research Sponsorship And Publication Impact? An Analysis Of Funding Acknowledgments In Nanotechnology Papers, Jue Wang, Philip Shapira
Philip Shapira
This study analyzes funding acknowledgments in scientific papers to investigate relationships between research sponsorship and publication impacts. We identify acknowledgments to research sponsors for nanotechnology papers published in the Web of Science during a one-year sample period. We examine the citations accrued by these papers and the journal impact factors of their publication titles. The results show that publications from grant sponsored research exhibit higher impacts in terms of both journal ranking and citation counts than research that is not grant sponsored. We discuss the method and models used, and the insights provided by this approach as well as it …
Social Science Contributions Compared In Synthetic Biology And Nanotechnology, Philip Shapira, Jan Youtie, Yin Li
Social Science Contributions Compared In Synthetic Biology And Nanotechnology, Philip Shapira, Jan Youtie, Yin Li
Philip Shapira
With growing attention to societal issues and implications of synthetic biology, we investigate sources of social science publication knowledge in synthetic biology and probe what might be learned by comparison with earlier rounds of social science research in nanotechnology. “Social science” research is broadly defined to include publications in conventional social science as well as humanities, law, ethics, business, and policy fields. We examine the knowledge clusters underpinning social science publications in nanotechnology and synthetic biology using a methodology based on the analysis of cited references. Our analysis finds that social science research in synthetic biology already has traction and …
Nanotechnology Companies In The United States: A Web-Based Content Analysis Of Companies And Products For Poverty Alleviation, Thomas Woodson
Nanotechnology Companies In The United States: A Web-Based Content Analysis Of Companies And Products For Poverty Alleviation, Thomas Woodson
Thomas Woodson
This study analyzes the goals, nanotechnology experience, corporate social responsibility and products of 50 USA-based companies working with nanotechnology to see if they are developing products that help low-income populations. Out of the top 50 R&D companies that publish and patent nanotechnology research in agri-food, energy and water sectors, 18 of them do not mention nanotechnology on their websites. The other 32 companies discuss nanotechnology in varying degrees. However, only two of the companies relate their nanotechnology R&D to poverty alleviation. Even though few companies refer to poverty alleviation, 30 firms of the sample have some type of corporate social …
In Search Of Standards For The Operation Of Small Satellites, Jeremy Straub
In Search Of Standards For The Operation Of Small Satellites, Jeremy Straub
Jeremy Straub
This paper considers the need for standards for the operations of small spacecraft. First, it considers a definition for what a small spacecraft is and discusses the elusiveness of this definition. Then, the paper turns to the ‘large space’ community and it examines their fears about small spacecraft as well as the operating paradigms that they are used to and how these drive their expectations for the operations of small spacecraft. Next, a prospective composition for a preliminary set of operating standards is discussed. Finally, a discussion of the benefits of standardization and what the different communities could expect to …
Characterization Of Bovine Serum Albumin Partitioning Behaviors In Polymer-Salt Aqueous Two-Phase Systems, Eng-Poh Ng Dr.
Characterization Of Bovine Serum Albumin Partitioning Behaviors In Polymer-Salt Aqueous Two-Phase Systems, Eng-Poh Ng Dr.
Eng-Poh Ng
No abstract provided.