Agustus 20, 2007
Politecnico di Torino, Italy
PhD Scholarships
Public competitive examinations are announced for admission to the three-year Research Doctorate Programs of the Politecnico of Torino, for the 22nd Cycle. The competitive examinations will award a total of 279 positions and 190 scholarships.
Information:
http://didattica. polito.it/ scudo/bandi. html
Call for application:
http://didattica. polito.it/ scudo/docs/ Bandodiconcorso2 2cicloInglese. doc
Agustus 15, 2007
The International Committee on Pavement Technology (ICPT) is a non-profit non-governmental organization hosted by the Centre for Transportation Research of the National University of Singapore. The ICPT was established in 1992 under an agreement between the Centre for Transportation Research, National University of Singapore, and the Pavement Engineering Society (Singapore). The permanent secretariat of the ICPT is hosted by the Centre for Transportation Research, National University of Singapore.
The objective of ICPT is to promote pavement technological advancement worldwide, with special emphasis in pavement technological development in developing countries, by encouraging exchange and transfer of pavement technology among professionals and researchers of different countries and regions, through organizing technology transfer activities such as international conferences. The current focus of ICPT is on the fast developing East Asian regions, with special emphasis on encouraging interaction of pavement professionals and researchers among Asian countries, and exchanging of experience and technology with other parts of the world.
- Topics of Conference
- Design and Analysis
- Testing and Evaluation
- Performance
- Materials
- Construction
- Maintenance & Rehabilitation
- Management Systems
- Environmental Issues
6th ICPT is interested in following themes on pavement technology.
Chair: Professor Atsushi KASAHARA
Co-Chairs: Dr. Yoshitaka HACHIYA & Professor Kenji HIMENO
Secretary: Dr. Nagato ABE6th ICPT Conference Secretariat Office
Japan Society of Civil Engineers
1 Yotsuya Shinjuku-ku, Tokyo, 160-0004 JAPAN
Fax: +81-3- 5379-2769
e-mail: pavement@civil.chuo-u.ac.jp
Agustus 15, 2007
Date: April 24-26, 2008
Venue: Beijing
Organizer:
(International Society for Maintenance and Rehabilitation of Transport Infrastructure)
Website: www.jtzx.net.cn/icti/
International Society of Maintenance and Rehabilitation of Transport Infrastructure (iSMARTi) is a technical and learned society dedicated to the theme of maintenance & rehabilitation of infrastructure assets of the transport system including corridors, airports, roads, pavements, tunnels and bridges, railroads, ports, dockland, utilities, and multimodal facilities. The society will support various different periodic events (conferences, workshops, short courses, technology synthesis reports), which will have the objective of promoting the exchange of know-how between the professionals involved in each of those infrastructure assets. In recognition of the importance of sustainable transportation infrastructure, iSMARTi is launching this international conference series to address the various issues pertaining to the development, design, construction, maintenance and rehabilitation of the infrastructures of the different modes of transportation. The first conference of the series will be held in Beijing, China on April 24-26, 2008 with primary focus on “sustainable Transport Infrastructure”.
Scope of Conference
Technical papers are invited to address all issues related to the transport infrastructure sector, encompassing the planning, development, design, construction, operations, management, maintenance and rehabilitation phases related to any form of transport infrastructure.The conference particularly welcomes papers dealing with improved methods, innovative ideas, new techniques and advanced technologies in any of the phases that enhance the sustainability of transport infrastructure development and operations.Both theoretical and practical papers are welcome.The technical program of the conference will be planned around the following tracks:
Listed below are examples of some of relevant topics under each of the tracks:
Agustus 13, 2007
prepared by Geotechnical Engineering and Soil Dynamics Research Group (GESID), Universiti Kebangsaan Malaysia
Principal Investigator: Zamri Chik, Mohd.Raihan Taha, Amiruddin Ismail, Mohd.Marzuki Mustafa, Sri Atmaja P.Rosyidi.
Investigator: Khairul Anuar Mohd.Nayan, Anuar Kasa
Our staff of LATEI, Sri Atmaja has already joined in the research team of GESID-UKM, has been successful to goal the research project together with other members of GESID. The research is started from 1st October 2007 and will be finished 18 months after the date mentioned above. He has an important rule in the research for conducting the main stage of research and coordinating the technical team in the research. Some important information from the research project are described below.
1. To characterize the soil dynamic properties such as the shear modulus reduction curve and the soil-structure interaction of Malaysian residual soil using surface wave analysis.
2. To develop an advanced processing of surface wave measurement in order to determine in-situ the material dynamic stiffness (in terms of soil bearing capacity), depth profile, attenuation properties and damping ratio for geotechnical structures design, such as lining of tunnels, soil nails, rock achors, embankment and subgrade underlaying a pavement layers.
3. To develop a software of tomographic surface wave analysis from the above processing for geotechnical structural evaluation purposes.
Shear modulus and damping ratio of geotechnical materials are an important parameter in characterizing the mechanical behavior of these materials under many different types of loading for design of foundation structures and constructions of civil infrastructures. These soil parameters are used in dynamic soil-structure interaction analysis for small-strain problems (below 10-3 percent) such as machine foundations and as reference level for larger-strain problems (10-3 to 10-1 percent) such as potential liquefaction during earthquake shaking or blasting force and for in situ evaluation of hard-sample deposits. For accurately providing these parameters for dynamic structural design, the interrelationship between shear modulus, damping ratio with state of stress and strain level is required. Shear wave velocity is directly related to the stiffness of the material skeleton through which the shear waves propagate. It is possible to measure shear wave velocity and then derive material parameters such as shear modulus or infer material parameters such as in situ density, from measured wave velocity. The behavior of shear modulus and its related strains of soils can be obtained from field testing or laboratory measurement. Laboratory tests such as cyclic triaxial, resonant column, cyclic simple shear and cyclic torsional shear, have been used. However, if natural deposits are to be tested, the laboratory devices have the shortcomings of using samples that are somewhat disturbed and of having the difficulty of properly simulating in situ stress conditions. Therefore, the laboratory measurements need to confine and consolidate the soil sample back to the state of stress to replicate field condition. The effective measurement of in situ shear modulus can be obtained with in situ seismic methods. The methods have the advantage that the state of stress is inherently included in the measurement procedure. The actual field condition of actual effective stress and drainage condition of undisturbed soil can be measured. In addition, the average stiffness condition of material which describes the inhomogeneity media can be directly assessed with propagation of seismic waves between active source and receivers (Luna & Jadi 2000). The in situ seismic methods most often used today are the crosshole and downhole. These methods require the installation of one or more boreholes where the installation is generally time consuming and costly. The surface wave methods, on other hand, involve measurement of propagation of surface wave to evaluate shear wave velocity and shear modulus profile. The surface wave methods consists of the spectral-analysis-of-surface-wave (SASW), continuous surface wave (CSW) and multi-channel spectrum analysis of surface wave (MSASW) method which differences between those methods are in the source type and amount of receivers. In the surface wave methods, both source and receivers are placed on the ground surface. Surface wave are generated by applying vertical loading on the ground surface. The propagation of these waves along the surface is then monitored and the stiffness profile of the site is typically calculated through a forward modeling or inversion process of surface wave propagation. The surface wave method is non intrusive method because of no borehole required, cost effective and especially well suited for in situ testing of hard to sample soils. Many researchers have carried out the study of surface wave method in different applications such as characterization of foundation (Madshus & Westerdahl, 1990; Stokoe et al. 1994), detection of soil profile (Matthews et al., 1996), evaluation of concrete structures (Rix et al., 1990), detection of anomalies (Gucunski, 2000), assessing compaction of fills (Kim et al., 2001) and the evaluation of railway ballast (Zagyapan & Fairfield, 2002). Study on direct signal processing of multi waveform of surface waves from in situ measurement to produce the geotechnical properties of seismic wave attenuation and damping ratio of soils structure has been initiated by Lai and Rix (1998).
Although the surface wave method using the SASW technique has been proven as an effective method for site characterization (Stokoe et al., 1994), the theoretical analysis of signals of surface wave dispersion should be continued to improve the accuracy of the method and more automation of the analysis procedures, and also as simple tool for geotechnical engineers. In the case of seismic surface waveforms are, by their very nature, transient, usually non-stationary events. The advanced study of signal processing of seismic surface wave was started by Zywicki (1999). Advanced signal and spatial array processing method was employed to solve the most acute problems associated with traditional geotechnical surface wave analysis. Other related research has been using the wavelets analysis which Haigh et al. (2002) started to conduct the study of characteristics of non–stationary pattern of surface waves from the earthquake recording. From his study, it was found that the harmonic wavelets analysis is to be useful tool for the analysis of non-stationary signals and generate the visualization analysis of combining the time-histories and Fourier transform which give great help in interpreting the behavior of geotechnical structures under earthquake loading. In other side, Santamarina (1994) introduced the fundamental aspect of wave propagation in geomaterials and followed by and introduction to the tomographic inversion. His study showed the classical algorithms and algebraic solution for tomographic analysis based on Fourier analysis. Developed from fundamental of wave propagation in geomaterial, the multi-waveform of seismic surface wave is also useful in order characterize the attenuation and damping ratio (Lai, 1998; Lai & Rix, 1998; Rix et al., 2000). In their studies, an attenuation curve was constructed from the observed spatial attenuation of Rayleigh wave amplitudes and then was inverted to obtain the material shear damping ratio. The analytical procedures which they used to obtain the shear wave velocity and damping ratio profile were performed separately. However, studies on the integrated surface wave analysis and its tomography interpretation for simultaneously generating the shear modulus and damping ratio profile of geotechnical structures were relatively few. In this study, the advanced processing of surface wave tomography will be employed in order to characterize dynamic soil properties for geotechnical applications. The wavelets and Fourier of continuous and discrete transform will be used to decompose and construct the better surface waveform and provide a convenient format for modeling, analysis and simulation of geotechnical properties.
References :
Gucunski, N., 2000, Field Implementation of Surface Waves for Obstacle Detection (SWOD) Method, Proc. of 15th World Conference of Non Destructive Testing, Rome, Italy.
Haigh, S.K., Teymur, B., Madabhusi, S.P.G. & Newland, D.E., 2002. Application of wavelet analysis to the investigation of the dynamic behaviour of geotechnical structures, Soil Dynamic and Earthquake Engineering 22 (2002), Elsevier Science, pp.995-1005.
Kim, D.S, Shin M.K and Park H.C., 2001, Evaluation of density in layer compaction using SASW method, Soil Dynamic and Earthquake Engineering 21 (2001), Elsevier Science, pp.39-46.
Lai, C.G. & Rix, G.J., 1998. Simultenuous inversion of Rayleigh phase velocity and attenuation for near-surface site characterization. Research Report. Georgia Institute of Technology, US.
Lai, C.G. 1998. Simultaneous inversion of Rayleigh phase velocity and attenuation for near-surface site characteri-zation. PhD. dissertation. Georgia Institute of Technology.
Madshus, C., & Westerdahl, H., 1990. Surface wave measurements for construction control and maintenance planning of roads and airfields. Proc.of 3rd. Int. Conf. On Bearing Capacity of Roads and Airfields, July 3-5, Trondheim, Norway.
Matthews, M.C., Hope, V.S. & Clayton, R.I., 1996. The geotechnical value of ground stiffness determined using seismic methods. In Proc. 30th Annual Conf. of the Eng. Group of the Geol. Soc., University of Lige, Belgium.
Rix, G.J., Bay, J.A, & Stokoe II, K.H., 1990. Assessing in situ stiffness of curing Portland cement concrete with seismic tests. Paper presented to Annual Meeting, Transportation Research Board, Washington, D.C., January.
Rix, G.J., Lai, C.G.& Spang, A.W., Jr. 2000. In situ measurement of damping ratio using surface waves. Journal of Geotechnical and Geoenvironmental Engineering 126(5): 472 – 480.
Santamarina, J.C., 1994. An introduction to geotomography. Geotechnical characterization of sites, R.D. Wood, ed., Oxford and IBH Publishing Co., New Delhi, India, 35-43.
Stokoe II, K.H., Wright, S.G., Bay, J.A, & Roesset, J.M., 1994. Characterization of geotechnical sites by SASW method. Geotechnical characterization of sites, R.D. Wood, ed., Oxford and IBH Publishing Co., New Delhi, India, 15-26.
Zagyapan, M. & Fairfield, C.A., 2002, Continuous surface wave and impact methods of measuring the stiffness and density of railway ballast, NDT&E International 35 (2002), Elsevier Science,pp.75-81
Zywicki, D.J. 1999. Advanced signal processing methods applied to engineering analysis of seismic surface waves. PhD. dissertation. Georgia Institute of Technology.
Agustus 10, 2007
The question of “How” to prepare a research proposal is an important part in the final stage of a university student of engineering faculty particularly in UMY, and also it is “A First Question” when an engineering student of UMY is starting to work the final project or minor thesis. This page provides guidance on writing a research proposal for engineering students at UMY. We provide a few suggestions on what to include and what to avoid. In making an application of final project or minor thesis of undergraduate student, make sure that the specialist area you wish to study is covered by a member(s) of staff at Engineering Faculty. You can do this by checking either individual staff profiles, or by meeting him/her directlty and discussing for your interested topics. You can also explore staff research interests by reading papers from of research working papers. Normally a proposal should be between 1500 and 2000 words and will include the following:
A working title of the topic area. This should do more than convey the key words associated with the proposed research.
General overview of area. This should take the form of a brief abstract of the general area of study and identify the concentration in your discipline(s) such as in transportation engineering, it can be more deeply focus when you are writing the topic of “pavement modeling”, “traffic simulation”, “public transportation” or other topics.
Identification of the relevant main literature. In this section you should develop your proposal to demonstrate that you are aware of the debates and issues raised in relevant bodies of literature. References to key articles and texts should be made to show that you appreciate their relevance to your research area. A degree thesis is not an original piece of research, however you should demonstrate that your proposed area is not “copy” from other thesis, research report, published paper etc.
Key research questions. Since you need to demonstrate that the topic can be completed within the normal time period allowed, you need to demonstrate that it is manageable, and so focus on key questions within your niche area.
Short Explanation of Methodology. You need to demonstrate an awareness of the methodological tools available to you and show some understanding of which would be suitable for your research. It may be that qualitative methods, including the analysis of interviews, is appropriate. Alternatively your approach may involve field or laboratory experiments, forecasting or statistical, designing or modelling. In other cases you may be combining methodologies. You need to specify the approach you feel will be most appropriate. Timescale/research planning You need to demonstrate an awareness of the need for planning and the timescale of the research.
Bibliography. You should include a short list of references to key articles and texts included in the proposal.
Avoid.
Wide topic areas which would be unmanageable as undergraduate student topics
Very complex descriptions of research areas
Experimental activities that the university laboratories and closed universities do not have the equipments and materials
Subject areas where engineering faculty has no expertise
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