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Library's collection Library's IT development Cancel| Model development of rainwater management for agriculture decision support system in semi arid area | Land cultivation for agricultural purposes in semiarid area is usually carried out only once a year specifically during the rainy season. The condition is even worse since it is not without the risk of failure because of dry-spell or water-logging. To cope with this situation, the researchers developed a model of ...
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| Applying fuzzy analytic hierarchy process (FAHP) ?-cut based and TOPSIS methods to determine Bali provincial road handling priority | The Analytic Hierarchy Process (AHP) method has been employed in a previous study to determine Bali provincial road handling priority. This method usually overlooks the decision maker?s degrees of confidence and optimism of the decision. Meanwhile, Fuzzy Analytic Hierarchy Process (FAHP) ?-cut based and Technique for Order Preference by Similarity to ...
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| Consideration of road management from the view points of long-and short-distance road user?s satisfaction | This study observed long- and short-distance road user satisfaction with national road infrastructure in order to direct future road management strategies. The research was a quantitative research method using questionnaire translated into the Japanese Language. The questionnaires were distributed to 2000 road users of two national roads in Saga, Japan. A ...
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| Effect of specimen size on the tensile strength behavior of the plastic waste fiber reinforced soil ? lime ? rice husk ash mixtures | Improvement of tensile strength in fiber reinforced soil is an important research topic. A study has been undertaken to investigate the strength of stabilized clay-soil reinforced with randomly distributed discrete plastic waste fibers by carrying out split tensile strength test. In this study, the clay soil was stabilized with lime and ...
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| The Influence of rock properties and size into strength criteria: a proposed criterion for soft rock masses | A new modified strength criterion for soft rock masses is proposed in this paper in order to provide a suitable estimation for soft rock mass strength. The new criterion is based upon the current compression test data of soft materials of over 150 samples, and available published data of soft rock strength. It is ...
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| Application of buckling restrained braces for seismic strengthening of irregular gravity load designed reinforced concrete frame buildings | Past earthquake disasters have shown that irregular gravity load designed (GLD) reinforced concrete (RC) frame buildings were very vulnerable to strong ground shaking. Many of them collapsed and caused loss of human lives as well as materials. Hence, in order to prevent future disasters, this type of buildings needs to be ...
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| Beam to column timber joints with pretensioned bolts | The effects of pretension in bolts on hysteretic response of timber joints exposed to a bending had been reported by the authors, but the cyclic tests were carried out at small displacement level which might not be applicable for earthquake-resistance design. In this study, similar cyclic tests but at large displacement ...
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| Kriging-based timoshenko beam element for static and free vibration analyses | An enhancement of the finite element method using Kriging interpolation (K-FEM) has been recently proposed and applied to solve one- and two- dimensional linear elasticity problems. The key advantage of this innovative method is that the polynomial refinement can be performed without adding nodes or changing the element connectivity. This paper presents the development of ...
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| Boundary conditions for 2D boussinesq-type wave-current interaction equations | This research focuses on the development of a set of two-dimensional boundary conditions for specific governing equations. The governing equations are existing Boussinesqtype equations which is capable of simulating wave-current interaction. The present boundary conditions consist of for waves only case and for currents only case. To simulate wave-current interaction, the two kinds of the ...
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| Numerical simulation of threat-independent progressive collapse | A threat-independent approach is usually utilized for progressive collapse analysis of buildings. This approach is referenced in the current guidelines such as ?Progressive Collapse Analysis and Design Guidelines for New Federal Office Buildings and Major Modernization Projects? by the U.S. General Service Administration and ?Design of Buildings to Resist Progressive Collapse? by the U.S. Department ...
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| Analysis of journey to work travel behavior by car and bus in the Sydney metropolitan region | Car dependence is a fundamental problem in the sustainability of cities with lowdensity suburban sprawl. Increasing the use of public transport is one of the policy objectives commonly adopted to overcome this problem. It is essential to study journey to work travel behavior by car and bus. This paper applied preference function to analyze ...
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| CPT-based interpretation of pile load tests in clay-silt soil | Two pile axial load tests were performed in a site in Depok, West Java. The soil of the site is predominantly a silt-clay soil, characterized by seven mechanical cone penetration tests (CPTs). The piles were 5.5 m long and 11.5 m long, 250 mm square piles. The results of the static load tests showed ...
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| Seismic properties of moment-resisting timber joints with a combination of bolts and nails | Improvement of cyclic or dynamic performance of timber connections has been intensively conducted since the overall response of wooden structures is merely a function of joint performance. For a bolted joint, filling the lead-hole clearance with epoxy resin or gluing high embedding-strength materials at the interface of the individual timber member are probably the most ...
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| Remediation of diesel fuel contaminated sandy soil using ultrasonic waves | Ultrasonic cleaning has been used in industry for some time, but the application of ultrasonic cleaning in contaminated soil is just recently received considerable attention, it is a very new technique, especially in Indonesia. An ultrasonic cleaner works mostly by energy released from the collapse of millions of microscopic cavitations near the dirty surface. ...
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| Ultra strengthening of wooden girders | Owing to the natural defects of wood, structural timber is currently used with conservative safety factors. This study investigates the use of Carbon Fiber Reinforced Polymer (CFRP) for improving the strength of structural timber. Four flexural test stages were carried out, the modes of failure of the three specimens in each stage were studied ...
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| Estimating the influence of accident related factors on motorcycle fatal accidents using logistic regressio (case study: Denpasar-Bali) | In Denpasar the capital of Bali Province, motorcycle accident contributes to about 80% of total road accidents. Out of those motorcycle accidents, 32% are fatal accidents. This study investigates the influence of accident related factors on motorcycle fatal accidents in the city of Denpasar during period 2006-2008 using a logistic regression model. The study ...
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| Application of prefabricated vertical drain in soil improvement | Although the use of Prefabricated Vertical Drain (PVD) in soil improvement is not new, this paper is interesting since it gives the full spectrum from preliminary design stage; trial embankment and pilot test to final soil improvement. The final installation of the PVD was based on the soil investigation report and the results of instrumentation ...
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| Estimation of congestion cost of private passenger car users in Malioboro, Yogyakarta | Congestion is the condition when the hourly traffic demand exceeds the maximum sustainable hourly throughout of the link. The aim of this research is to estimate the congestion cost of private passenger car users in central business district along the corridor of Malioboro, Yogyakarta, Indonesia. The amount of the congestion cost is the difference ...
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| Flow fields in front of a cylindrical obstacle | An experimental investigation, conducted in two different flows Reynolds number, was carried out to study the structure of the flow field upstream of a cylindrical obstacle. An Acoustic Doppler Velocity Profiler (ADVP) was used to obtain instantaneously the three directions of the mean velocity. Results of the experiments show the longitudinal velocities,u , decrease approaching ...
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| Creep behaviour of fly ash-based geopolymer concrete | Fly ash-based geopolymer concrete is manufactured using fly ash as its source material and does not use Portland cement at all. Beside fly ash, alkaline solution is also utilized to make geopolymer paste which binds the aggregates to form geopolymer concrete. This paper presents the study of creep behaviour of fly ash-based geopolymer concrete. ...
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