Jean-François Geneste |
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| The Trigger | ||||||||
In the worldwide competition, you can face the event whether you need to design a new product
or not to follow competition. Such a decision is generally very painful since it implies huge investment whereas
you competitors, in the meanwhile would only need incremental modification. We provide a simulation tool and
explain how it works in order to detect such a situation. We also show that a result can be a strategy, in the
favorable case, to decide an incremental change program in order to push the competitor to start a brand-new
program.We illustrate our paper through the example of the Airbus Boeing competition
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[1]. J.-F. Geneste, Ainsi Marchait L'Humanité, Bénévent, 2008.
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Tanol Tanli, Salahi Pehlivan |
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| Using Treated Waste Water in Northern Cyprus Concrete industry for Saving the Natural Water Resources | ||||||||
The construction industry appears to be responsible for the consumption of huge amount of fresh
water. Approximately 150 liters water is required for 1m3 of concrete without considering other applications of
water at the concrete industry. The mixing of water which is fit for drinking purpose is fit for concreting, but
about 97 percent of water is held in the oceans, while only 3 percent is fresh water. The concrete industry has
serious impact on the environment with regard to consumption of water. Nowadays, The architectures and
engineers consider to minimize the damaging of the environment and saving the natural resources for the future
generations. In the water consumption is the one of the important key for humans, according to the concrete
industry has to be found the alternative ways to save our natural water. This research is invvestigated the effects
of using treated water in cvoncrete and also show the way to use treatec water in concrete for northern cyprus
concrete industry when establishing sustainable construction strategies for improving the sustainable
development.
natural water, treated water, concrete industry & sustainable development
[1]. World Bank Group (2000). ―Attacking poverty: The World Bank development report 2000/2001.‖ Oxford University Press, New
York.
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Deepti Shri Soumitra, Ajay Kumar Singh |
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| Testing of Mechanical Properties of Air Cooled Blast Furnace Slag | ||||||||
The cement industry is one of the part producers of carbon dioxide, protect green house gas,
which causes damage to most fertile layer of the earth, the top soil. Concrete is used to create hard surface
which contribute to surface runoff that may cause soil erosion, water pollution and flooding.
From structural point of view, GGBS replacement enhances lower heat of hydration, higher durability and
higher resistance to sulfate and chloride attack when compared with normal ordinary concrete. On the other
hand, it also contributes to environmental protection because it minimizes the use of cement during the
production of concrete.
The quantitatively evaluate the influence of ground granulated blast-furnace slag (GGBS) as a supplementary
cementitious material on the industries environmental impact of concrete............
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[1]. Md. Moinul Islam, Dr. Md. Saiful Islam, Md. Aftabur Rahman and Amrita Das, "Strength Behaviour of Mortar Using Slag as
Partial Replacement of Cement", Department of Civil Engineering, Chittagong University of Engineering and Technology.
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Nemchynov Yu. I., Tarasyuk V.G., Fesenko O.A., Bogdan D.V. |
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| Progressive collapse of buildings. International experience and Ukraine application | ||||||||
The article discusses regulatory requirements contained in international codes, in regulatory
documents of Ukraine and the CIS countries when designing multi-story buildings and structures for
progressive collapse. Definitions of the term "progressive collapse" are considered and historical examples of
collapsed buildings due to external factors (explosions, earthquakes, fires, etc.), as well as material degradation
processes and design errors are given. The types of progressive collapse and general requirements that must be
considered when designing are analyzed. Particular attention is paid to the selection of the initial (local) design
failure.Examples of local failure according to the codes of the UK, Canada, USA, Russia and Ukraine are
given. The design strategy includes redundancy issues, creation of plastic joints, tie interactions, and methods
for progressive collapse analysis.
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[1]. ASCE 7-02. American Society of Civil Engineers. Minimum Design Loads for Buildings and Other Structures/ Revision of ASCE
7-98. ‒ 377 p.
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Achmad Chumaidi, Dwina Moentamaria, danHeny Dewajani |
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| Study of Kinetics Model "Shifting Order Reaction" Dehydration of Ethanol to Become Diethyl Ether (Dee) With Catalystcuo- Zno/-Al2o3 | ||||||||
The dehydration reaction of ethanol to diethyl ether (DEE) takes place in a batch reactor by
pyrolysis and pressure. The "shifting order reaction" kinetics model was examined to assess the suitability of
reaction mechanisms for parameters in the reaction speed equation. The "shifting order reaction" point is the
point of shifting elementary reaction orders from one order to another where it is a significant location for "shifting order reaction". The purpose of this modeling is to find the kinetic model of "shifting order reaction" ethanol to diethyl ether is a reaction process Elementary which runs simultaneously and continuously in the
liquid phase and gets a reaction order and reaction speed constants that can be implemented in the form of
laboratory experiments The research method uses a 8 bar pressurized batch reactor.........
Shifting order, pyrolysis, DEE, catalyst..
[1]. Buren (2009) , Catalytic conversion of Ethanol to Gasoline Range Hydrocarbons, Catalysis Today. 96 (2004) 155-160.
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Setare Ghahri Saremi, Dimitrios G. Goulias, Anjuman Ara Akhter |
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| Incorporating Non-Destructive Testing Methods in Concrete Production for Strength Gain Assessment | ||||||||
Monitoring and predicting concrete strength during production is critical in assessing the effects of specific ingredients, proportioning, mix design optimization, curing effects and concrete homogeneity. Similarly, the estimation of concrete strength in the field is also critical for avoiding potential catastrophic failures during construction either due to early removal of the forms, applying additional "dead loads"(i.e., weight of concrete from additional floors and columns on the top of freshly poured slabs and foundation), and/or "live loads" from external in-service load related forces. Thus, quick and accurate methods of non-destructive testing, NDT, are particularly valuable in the Quality Assurance and Quality Control (QA/QC) process..........
Non-Destructive Testing, Quality Control, Quality Assurance, Concrete, Maturity.
[1]. ASTM International. ASTM C1074-17.Standard Practice for Estimating Concrete Strength by the Maturity Method. West Conshohocken, PA, 2017. doi: https://doi.org/10.1520/C1074-17
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Jozić S, Bajić D, Dumanić I |
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| Influence of Processing Parameters on the Performances of High Pressure Die Casting Process | ||||||||
This paper presents an approach to determine the influence of processing parameters on the
quality of aluminum alloy castings. The casting process considered is a high-pressure casting process used to
produce complex shapes in light alloys. The combination of design of experiments and computer-aided casting
simulation techniques allow the casting process to be evaluated and help to optimize input process parameters
faster. A simulation of casting process, according to the Taguchi method based on L9 orthogonal array, was
performed.The output process variables were material shrinkage and cycle time. These values were obtained at
the end of the simulation process. Grey relational analysis and analysis of variance were performed. Analysis of
variance results show that pressure in the 3rd phase and mould temperature have the most significant influence
on the material shrinkage and cycle time.
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[1]. Jiang Zheng, Quodong Wang, Peng Zhao, Congbo Wu(2009), Optimization of high-pressure die casting process parameters using
artificial neural network, International Journal of Advanced Manufacturing Technology, 44; p 667-674.
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Javier Holguín-De La Cruz |
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| Required Allocation of Police Patrols in a Public Safety Emergency Response System Using Stochastic Simulation | ||||||||
Our research focuses on the performance evaluation of a public safety Emergency Response
System based on a geographical and information technology assisted model, used to allocate police patrols to
attend phone calls for service. Usually, public safety receives insufficient amount of resources such as the
number of police patrols geographically allocated. However, our research interest is to evaluate an ideal and
required number of police patrols that would be sufficient to reach a given level of service, considering the key
performance parameter of response time and an international reference ideal maximum value. This research
incorporates a 9th police district to previously published results of eight police districts. Actual and proposed
operating strategies are modeled using discrete event stochastic simulation based on real data from 23
continuous days of operation of the system. Results identify that required ideal levels of resource for all police
districts could be considered realistic and affordable.
Emergency Response System; Police Patrols Allocation; Public Safety; Response Time; Stochastic
Simulation
[1]. Adler, N., Hakkert, A.S., Kornbluth, J., Raviv, T., and Sher, M. 2013. Location-Allocation Models for Traffic Police Patrol
Vehicles on an Interurban Network. Ann Oper Res, doi: 10.1007/s10479-012-1275-2
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