bluuebunny/crossref_metadata_2025_split huggingface dataset:
Vibration analysis of the F-segment car exhaust system
Authors: Popov V S , Gavryushin S S , Nadareishvili G G , Yudin S I 
Published: May 2020

Abstract
The paper considers the problem of improving the comfort and environmental friendliness of a modern f-segment car with an internal combustion engine by reducing the noise and vibration levels of the exhaust system. Gas-dynamic and mechanical excitations from the car engine and road surface cause vibrations in the exhaust system, which are transmitted through the body and the bracket structure to the body causing discomfort of the driver and passengers. To reduce the negative impact, when designing the exhaust system, it is necessary to ensure such a location of the exhaust system suspension elements that will meet the maximum operation requirements for the vibration comfort. An important task is to build a numerical experiment for the entire assembly structure to determine the nature of the similar systems loading. The solution of the above tasks is aimed at the insurance of specific strength and durability of both the entire system as a whole and the most important support elastic elements. This calculated study is of practical importance not only for reducing the vibration load of car exhaust systems and the car body, but also for improving the vibro-acoustic comfort of passengers.
Classification of tablesemantically binary relevant information for drivers in highly automated vehicles
Authors: Savchenko V V , Litarovich V V 
Published: May 2020

Abstract
The search for ways to solve the problem of transfer control to the driver in highly automated vehicles, involves the development of new methods and adaptation of known under the solution of the problem. The development of the method of monitoring the perception of semantically binary relevant information by the driver implies the identification of sources of significant information and classification of semantically relevant information for drivers coming from ADAS, ITS and the dashboard. Determination the driver’s time to response to the relevant information and the subsequent analysis will allow in real time, during the execution of the algorithms of the activity on the management of the highly automated vehicle, without using the additional equipment, to monitor and update the particular driver’s database containing quantitative values that characterize a number of its professionally important qualities, in automatic mode, with the use of cloud servers. The obtained results are focused on the solution of the problem control transfer to the driver in highly automated vehicles, when the vehicle’s onboard systems cannot support further “unmanned” mode of control and the vehicle is not within a specific operational design domain.
Identifying of project manager competence factors in managing EPC projects in Indonesia
Authors: Mairizal  , Edrizal  , Ismail Mohammad , Zin Rosli Mohamad 
Published: May 2020

Abstract
The rapid development of the industry by enhancing the development of power plants, fertilizers, oil & gas operated by integrated construction companies or Engineering, Construction and Construction (EPC) companies, where EPC companies are required and have experience in planning and developing industrial projects. The higher technology and the sophistication of the design process that demands more need for skilled Human Resources i.e. Project Manager to handle and complete these projects. Project manager is responsible for the overall success of delivering the owner’s physical development in cost constraints, schedules, quality, safety and environmental requirements. Therefore, they play an important role not only in the operating activities of engineering construction companies but also in the development of infrastructure in each country including Indonesia. Two stages of factor analysis were conducted on competence factors than the International framework of Project Manager Competences Development Framework and competence factor based on the basic theory of competence. There are 105 competence factors appeared from its analysis. All factors have validated by experts from the National Association of Design and Development of Indonesia (GAPENRI) as the Unity that manages EPC companies in Indonesia, Project Management Institute (PMI) Indonesian Chapter and Indonesian Project Management Specialist (IAMPI).
Critical risk factor affecting project performance in West Sumatera
Authors: Kurniawan D. , Masril  , Rahman A. 
Published: May 2020

Abstract
The construction industry has a very dynamic nature with threats that must be faced. Every construction project, risks must exist and are common except if the owner can transfer them to another party by paying compensation. In order for risk or uncertainty to be controlled and anticipated as early as possible, the risks that exist and potentially cause losses must be managed as well as possible. From the description above, this study aims to identify critical risks factor (CRF) that occur in building projects that have an influence on contractors and analyse important risk factors that occur projects in the province of West Sumatra. The aim of the research was to identify and assess risk factors during the construction phase of construction projects in West Sumatera. Respondents of this study are Contractors, Supervision & Owner. Data retrieval is done by random sampling with a structured questionnaire. Furthermore, all questionnaires that were collected were analysed statistically, using Partial Least Square Structural Equation Modelling (PLS-SEM) with SmartPLS 3.0 program. The results showed the critical risks affecting project performance identified appears to be that the most critical factor is project management risk, material risk, design and architect risk, equipment and also safety risk
Building safety index for elementary school building in West Sumatera
Authors: Masril  , Kurniawan Deddy , Ismail Mohammad 
Published: May 2020

Abstract
Safety and health In building planning must be considered during the building service period. The research objective is the application of Safety Building Index (BSI) in elementary school building planning. The factors of previous research were six factors, and the authors assessed Seven, namely architectural factors, building services, the external environment, operational and maintenance, administration and management of building maintenance. The research method was carried out by distributing questionnaires then distributed to construction practitioners such as architects, engineers, surveyors, contractors, consultants and developers. After completing the questionnaire, form to carry out the analysis with the SPSS program. The results of statistical analysis reveal the highest level of influence of each building factor on building planning. The research findings are the influence of each of the factors reviewed and which factors are dominant. The most dominant factors that must be considered by planners in designing elementary school buildings so that the Building Safety index can be applied in elementary schools in West Sumatra Padang.
A review of corruption in public procurement in Indonesia
Authors: Yustiarini Dewi , Soemardi Biemo W. 
Published: May 2020

Abstract
The implementation of a good State is one of the benefits of preventing corruption, meaning that Indonesia’s funds and natural resources are fully managed for the interests and prosperity of the people. The public understands corruption as something detrimental to state finances. In Law 31 : 1999 in conjunction with Law 20 : 2001 concerning Eradication of Corruption Crime there are 30 types of corruption. One of the seven Corruption Crime groups is gratification. Two of the seven principles of gratification control are transparency and accountability. The principle of openness is reflected in the mechanism for reporting on receipt of gratuities to the Corruption Eradication Commission. This study attempts to identify various aspects associated with the potential occurrence of corruption in the procurement of Government sector infrastructure projects based on a literature review through existing legislation in Indonesia. The results of the study are expected to be able to find indicators as potential corruption in public infrastructure procurement.
Thermal comfort study for classroom in urban and rural schools in Selangor
Authors: Mazlan Ain Naadia , Saad Syazwan , Yahya Khairulzan , Haron Zaiton , Abang Hasbollah Dayang Zulaika , Kasiman Erwan Hafizi , Rahim Noorlizawati Abd , Salehudddin Ainon Muhamed 
Published: May 2020

Abstract
Optimum comfort factors help in enhancing effective learning process in a classroom. The aim of this research is to study thermal comfort in school classroom for a more desirable learning process. Four schools consist of urban and rural schools in Selangor were selected for this study. Field measurement and questionnaires was used to measure the level of comfort and satisfaction of school teacher and student in classroom. Data was collected using Temperature data-loggers (SD500 Humidity/Temperature Data logger). The questionnaire was analysed based on Likert’s scale rating. Result from both on-field measurement and questionnaire survey suggests that thermal comfort have greater importance to focus. All the schools tested higher temperature than the recommended value. This study also outlines several improvement suggestions actions for better comfort level such as better air ventilation system and smaller class size
A study on integration of building information modelling (BIM) in civil engineering curricular
Authors: Kordi N E , Zainuddin N I , Taruddin N F , Tengku Aziz T N A , Abdul Malik A 
Published: May 2020

Abstract
Building Information Modelling (BIM) is a practical approach that can manage the construction projects’ life cycle activities and be used by the architecture, engineering and construction (AEC) to ensure the excellent quality of the projects, reduce cost and facilitate communication among contractor players. The development of the BIM uses in the construction industry has widely spread in many countries, unfortunately not in Malaysia even though it started in Malaysia since 2004. Several universities worldwide offer BIM courses in their program, while many others are under the process of integrating BIM into their curricula. Most of the universities lack the realization of the importance of BIM application, BIM teaching strategy, and plans to overcome the barriers to integration of BIM into the curriculum. This paper presents the current state of BIM education in the engineering program in the Faculty of Civil Engineering (FCE) as a case study. A detailed literature review and questionnaire survey performed for this purpose, followed by statistical analysis. The research presented the status of BIM education in FCE and formulated a framework that will provide guidelines for those universities which are not currently implementing BIM or just started developing BIM curriculum. More practical project-based class assignments that supported students with learning how to apply different formal project management methods to real-world project management problems will be adapt. The program in the universities will be able to produce graduates who are equipped with the necessary knowledge and skills of modern tools such as BIM before they enter into their professional careers.
Slope stability analysis along the road between Yinmabin and Kalaw in Mandalay region and Shan state, Myanmar
Authors: Myat A K , Aung D W , Zaw T N , New H M 
Published: May 2020

Abstract
Slope stability analysis along the road between Yinmabin and Kalaw, in Mandalay Region and Shan State was carried out aiming to gain preventive measure for the landslide due to the lack of consideration on landslide hazards and associated risk. The rocks comprise the sedimentary rocks of Plateau Limestone Group, Loi-an Group and Kalaw Red Bed, and the Yinmabin Metamorphics. Notably, four types of landslides such as rockfall, debris flow, creep and slump have been identified along this road. Rockfall is the commonest landslide mainly occurs along the manmade road cuttings generating potential threats to human life triggered by heavy and prolong rainstorm. Slope Mass Rating (SMR) values indicated that Yinmabin Meamorphics is the most vulnerable to landslide. Three types of failures such as wedge, plane and toppling failures are confirmed by kinematic analysis. Moreover, a total of three landslide hazard zones is interpreted based on geological and geotechnical parameters. These zones are described as Landslide Hazard Zone I (west of Yinmabin), Zone II (eastern part of Yebokson and western part of Kyatsakan) and Zone III (the area between Nampandet and Wetphuye). Remedial measures have been proposed to mitigate the hazard.
Calibration of rock Brazilian test using discrete element method in LS-DYNA
Authors: Shahrin M I , Abdullah R A , Jeon S , Jeon B , Sa’ari R , Alel M N A 
Published: May 2020

Abstract
Brazilian test which also known as indirect tensile test is widely used to evaluate the tensile strength of rock. Discrete element method (DEM) together with finite element method (FEM) approach was used to investigate numerically the response of granite material under Brazilian test for indirect measurement of tensile strength of rocks. The calibration analysis performed in this study using the commercial software LS-DYNA. It has been attempted to calibrate the micro-parameters in bonded particle model of granite rock for numerical modelling. In hybrid DEM-FEM simulation, the rock specimen was modelled in DEM while the steel plates were simulated using FEM. This numerical analysis is compared to experimental data of Brazilian test. It shows that the combination of numerical methods simulation could reproduce the trends of experimentally observed stress-strain curve of granite rock under tensile loading. Besides that, the hybrid DEM-FEM simulation also shows the same failure mode of granite specimen. Comparison between experimental data and numerical analyses is presented and discussed.
Effectiveness of crumb rubber for subgrade soil stabilization
Authors: Juliana I , Fatin A R , Rozaini R , Masyitah M N , Khairul A H , Nur Shafieza A 
Published: May 2020

Abstract
The properties of subgrade soil are important in the pavement design as its main function is to support the load transmitted from overlying pavement layers. Subgrade must have sufficient strength and stability even under bad traffic and climate conditions. Soil with good qualities should be used as subgrade but not all soil possesses the required abilities as there are some locations that have poor qualities of in-situ soil. The stabilization of soil can be used to improve the poor subgrade; hence it may reduce the thickness of pavement design and also increase life of the pavement. In this study, soil stabilization using crumb rubber is the alteration of subgrade soil as the properties of crumb rubber are lightweight and high shear strength. Moreover, it can also reduce the improper tyre’s disposal problem and pollutions. The soil used are collected from a landslide site located near to Mengkuang Dam in Seberang Perai Tengah, Penang in order to investigate the performance of subgrade soil stabilized with 2%, 4%, 6% and 8% of Crumb Rubber (CR). A series of laboratory testing of unsoaked and soaked (4 days) California Bearing Ratio (CBR) test have been performed to evaluate the best percentage of CR which fulfilled the JKR specification for subgrade. The results show that all mixtures; M2 (2% CR), M3 (4% CR), M4 (6% CR), and M5 (8% CR) are fulfilled the subgrade requirement according to the Public Works Department Malaysia (JKR) standard specification for road works where the CBR value must achieve more than 5%. The mixture with 4% CR (M3) shows the highest unsoaked and soaked CBR values, thus, the 4% CR is recommended to be implemented for subgrade soil stabilization.
Social aspect implementation in sustainable construction
Authors: Kamaruddin T , Adul Hamid R , Abd Ghani S 
Published: May 2020

Abstract
The concept of sustainable development integrates social, economic and environmental dimensions. There are various models that have been developed to monitor and ensure the sustainability concept are adapted in the construction process applicably. However, most sustainability studies that discussed in construction projects are more focus on environmental aspects rather than economics aspects and social aspects. Meanwhile, only a few studies are discussed on social aspects. Therefore, this study tries to investigate the perception of industry on the implementation. This study is conducted to identify the level of agreement to the implementation of social aspects in sustainable construction and the barriers faced. The social factors (accessibility, health, safety, human rights, education, equity, occupancy design requirement, culture, integrity and stakeholder’s involvement) and the barriers (government enforcement, awareness, knowledge and experience, skills, involvement and cost factors) have been identified through literature review. The methodology used was quantitative methods through the formulation of questionnaires distributed to respondents with experience and experts in sustainable construction industry such as Green Manager (Architect, Engineer, and Quantity Surveyor), Town and Regional Planner and academician. The findings obtained through the mean score analysis have found that, the highest three (3) social factors on the agreement of the implementation of social aspects in sustainable construction which are the factors of occupancy design requirement, education and factor of involvement. Whereas the highest three barriers to the implementation were weaknesses of government enforcement, cost factors and stakeholder engagement in sustainable construction. However, there is no association between the numbers of years of respondent’s experience with the selection of social factors measured by using gamma test. Thus, it can be concluded that not all aspects agreed by the respondents will influence the actual execution that they will perform in the actual situation on site.
Effect of high temperatures on physical and compressive strength properties of self-compacting concrete incorporating palm oil fuel ash
Authors: Mujedu Kasali A , Ab-Kadir Mariyana A , Ismail Mohammad 
Published: May 2020

Abstract
Palm oil fuel ash (POFA) has been widely utilized to replace cement in self – compacting concrete (SCC) to reduce the cost of its production, environmental pollution and health hazard caused in the cement production. However, the effect of high temperatures on SCC incorporating POFA has not been well established. The purpose of this research is to examine effects of high temperatures on the physical and compressive strength properties of SCC incorporating POFA with replacement level of 20% by weight of cement. The compressive strengths of SCC specimens were evaluated at 28 days of curing using both cubes and cylinders. Thereafter, the SCC specimens were exposed to high temperatures of 200, 400, 600 and 800 °C using an electric furnace for a period of 2 hours after attaining the required temperatures. After exposure, mass losses together with residual compressive strength were determined. The results of the test showed that there was a continuous reduction in mass of the specimens with increase in temperature. The results also revealed that the colour of the specimens does not change at 200 °C but the colour changes started to occur between 400 °C up to 800 °C. There was an increase in the residual compressive strength for the two mixes at temperature range of 200 – 400 °C for the cubes and cylinders whereas at the temperature of 400 – 600 °C and 600 – 800 °C, there was a sharp reduction in the residual compressive strength for the two mixes for the cubes and cylinders. The SCC with and without POFA follow the same trends.
Improving strength of porous asphalt: a nano material experimental approach
Authors: Pradoto Rani , Puri Eliza , Hadinata Tri , Rahman Qinthara D. 
Published: May 2020

Abstract
Porous asphalt (PA) has potential to be utilized in many urban area in Indonesia which often faced high street runoff during rainy season. PA is an environmentally friendly tool for stormwater management. A typical porous pavement has an open-graded surface over an underlying stone recharge bed. The water drains through the porous asphalt and into the stone bed, then, slowly, infiltrates into the soil. However, despite of the benefit of porous asphalt, there is still weaknesses, such as less of service life than dense-graded asphalt due to its lower durability and strength. In order to improve durability and strength of PA, this study investigates the effect of using fly ash (FA) class F in porous asphalt (PA) mixture as replacement of common filler. Since asphalt pen 60/70 is mainly binder material in Indonesia, it is used as the default for all samples in this experiment. The optimum bitumen content (OBC) was determined for all the mix by Marshall mix design. In view of the nanomaterial approach, samples were then prepared for the same optimum bitumen content (5.85%) by using Bina-Marga’s PA standard in control mix as well as natural FA and treated FA as alternative filler in modified mixes. Treated FA itself has been milled using transversal ball mill machine for 3 to 6 hours. Experimental results indicated higher stability value and reduction of permeability with the same OBC for the mixture having treated FA as filler content in comparison with standard mix and natural FA mix. It is proposed that additional finer material of treated Fly ash as alternative filler added into asphalt mixture resulted in improvement strength. In order to do that, the required amount of treated Fly ash should be less than 200 grams.
Fibre optic sensing measurement of static surface load distribution on road base layer
Authors: Giwangkara G G , Mohamed A , Khalid N H A , Nor H M , Ahmad I S , Ullah A , Rogo K U 
Published: May 2020

Abstract
Road base layer has a unique way to distribute the stresses. Unlike a concrete layer which relies on its flexural strength, the road base layer transmit its working load by grain-to-grain contact. Many aspects will affect this load transfer system, for example, the aggregate type, shape, and strength. In this research, the fibre optic sensing was used to obtain the strains of the load under the road base layer. By knowing the strains under the road base layer, then the load distribution characteristic on the road base layer can be obtained. Two samples were tested in this research. Sample A was a road base layer constructed from natural crushed aggregate (NCA), and sample B was constructed from recycled concrete aggregate (RCA). The dimensions of the samples are 1 m x 1 m with 200 mm of thickness. A gradual static load was applied on the road base layer surface and the fibre optic sensing will measure the strains at the bottom of the road base layer. A software simulation also conducted as a comparison for the mechanical test. The result shows that the distribution area of road base layer from RCA is smaller than road base layer from NCA which means it distributes less stress than road base layer from NCA. It means that NCA has a better grain-to-grain action compare to RCA.