bluuebunny/crossref_metadata_2025_split huggingface dataset:
Behaviour of rebar shear connector in a push test for composite beam with cold-formed steel section
Authors: Armo Achmad Abraham S , Saggaff Anis , Tahir Mahmood Md , Ngian Shek Poi , Sulaiman Arizu , Salih Musab NA 
Published: November 2019

Abstract
Cold-Formed Steel (CFS) has been widely used for residential, commercial and light industries due to lightweight and ease to install. Development of suitable shear connector for composite beam systems with CFS is proposed in this research. This paper presents the performance of the proposed shear connector using rebar in CFS composite beam systems. A new method is introduced to install the proposed shear in composite beam system encased in Self-Compacting Concrete (SCC). Three specimens are tested until failure for the rebar of a shear connector with different configurations with a dimension of 12 mm and 16 mm and interval distance longitudinally 200 mm and 330 mm for the standard push-out test. The shear capacity, ductility and failure modes are recorded from the test specimens. The experimental results are compared with Eurocode 4 to establish the relationship between theoretical value and experimental value. It can be concluded that the increased in dimension size and the reduced in intervals longitudinal distance of rebar contributed to an increase in the shear capacity.
Effects of crushed stone waste as fine aggregate on mortar and concrete properties
Authors: Prasetia Irfan , Maulana Achmad 
Published: November 2019

Abstract
In this study, effects of crushed stone waste from Katunun’s quarry as fine aggregate on mortar and concrete properties will be examined. Samples with varying crushed stone waste replacement ratio, ranging between 0% until 100%, will be analysed at 3, 7 and 28 days curing time. Mortar sample is using 0.5 w/c ratio, while concrete sample is using 0.45 w/c ratio. The mixture of mortar sample is based on SNI 03-6825-2002, whilst concrete sample is based on SNI 03-2834-2000. The examination of concrete samples workability was conducted based on the slump test according to SNI 1972:2008. Moreover, the compressive strength test of mortar sample is based on SNI 03-6825-2002. In addition, the compressive strength test of concrete sample is based on SNI 1974:2011. Regarding compressive strength of mortar samples, the average compressive strength results of mortar with crushed stone waste rose significantly in line with the increase in replacement ratio. As for the workability of fresh concrete, sample using natural river sand had better workability compared to sample using crushed stone waste. However, the workability of concrete with crushed stone waste is still meet the slump value specified in the job mix formula. In addition, it has been found out that the combination of 75% crushed stone waste with 25% river sand will give the highest compressive strength compared to others combinations. Based on these findings, the utilization of crushed stone waste from Katunun’s quarry in mortar and concrete mixture can be proposed.
Readines of Change Management in the Malaysian Public Organization
Authors: Ahmad Mohd Hafis , Ismail Syuhaida , Saleh Abd. Latif 
Published: November 2019

Abstract
In order to make a transition from its current state to some desired future states, organisational change must be carried out in minimising employee resistance and cost to the organization while simultaneously maximising the effectiveness of the change effort. This paper aims to assess the value of the change management of organisation in the Malaysian public organisation with its three objectives of (1) identifying the attributes of change management in the Malaysian public organisation; (2) investigating the current practice of organisation and employees in the Malaysian public organisation towards change management and (3) assessing the factors influencing readiness of organisation and employees in the Malaysian public organisation towards change management. It is found that change management is a structured approach for ensuring that changes are thoroughly and smoothly implemented to transitioning individuals, teams, and organisations to a desired future state by focusing on the wider impacts of change, particularly on people, where change does not happen in isolation thus impacts the whole organisation. Furthermore, based on literature content analysis, questionnaires survey and Relative Important Index (RII), it is found that current practice of organisation and employees in the organisation towards change management involved three main factors, namely trust in management, communication and organisational commitment; with the factor for trust in management is the positive vision for the future by management team, meanwhile for communication, it is found that there is good communication between supervisors and employees about the organisation’s policy toward the changes. The factor found in organisational commitment is employees enjoying discussing about their organisation with outsiders. The findings of this paper provide a positive impact on change management planning, which ultimately help in ensuring more effective change programme implementation in the public organisation in Malaysia.
Community base development at the implementation of rehabilitation and reconstruction project after earthquake in West Sumatera
Authors: Farni Indra , Zin Rosli Mohamad , Alzahri  
Published: November 2019

Abstract
This study aim to assessing and investigate the construction process of damaged houses during the rehabilitation and reconstruction phases due to the 2009 West Sumatran Earthquake. Community empowerment approach is adopted considering its sustainability to strengthen the capacity of community in order to reduce disaster risk. The community empowerment concept will run effectively if it is designed properly. Through self-help scheme, the social solidarity, voluntary, and self-reliance, the community is expected to be prepared to forge synergic partnership based on equality and interdependency. Community orientation not only mobilizes the potentials of internal resources but also takes the move to mobilize and utilize all parties involved such as outside community, local government, interested groups, and others. The partnership is very much needed to strengthen the community capacity and to expand its development efforts. People oriented development is formed based on community approach. The community approach is determined by individuals who are expected to build critical awareness and positive behavioral changes, self­reliance, and independence towards the rehabilitation and construction process. The individual behavior change that becomes the pillar for collective community behavioral change, resulting the capability of the community to build up and develop the social resilience of the community, housing and human settlements infrastructure and basic service independency, and economic reliance. The community implementation at community level, in principle, is adjusted to local priority needs of respective area by taking into account the three pillars of the balanced community. This study finds that the rehabilitation and reconstruction process in the aftermath of the 2009 West Sumatran Earthquake had not actively empowered the society. Therefore, development reorientation approach has to be done as a new paradigm and the development concept has to be started with community empowerment.
Feasibility of ISO shipping container as transitional shelter-a review
Authors: Hui Ling Philip Chie , Tan Cher Siang , Saggaff Anis 
Published: November 2019

Abstract
The arising of natural disasters had increased the demand of post-disaster shelter. Over the past decades, concept of transitional shelter had been introduced as a better alternative compared to conventional shelter provision. ISO shipping container had become potential material as transitional shelter. However, the suitability of shipping container as transitional shelter is questionable as there is lack of previous study concern on this issue from different perspective of views. The aim of this paper is to provide a review on the feasibility of ISO shipping container as transitional shelter. The literature review was taken and the context analysis was done using “Technical, Economic, Legal, Operational, Schedule” (TELOS) framework. The strength and weakness of the shipping container as transitional shelter were summarized based on the framework and recommendations were suggested. With the recommendation done, the potential of shipping container to be used as transitional shelter can be fully exploited and become an outstanding alternative for conventional construction method.
Determination residual strength concrete of post-fire using ultrasonic pulse velocity
Authors: Wuryanti Wahyu 
Published: November 2019

Abstract
Assessment of residual strength of concrete post fire is importance. Concrete exposed at high temperatures causes chemical and physical phenomena that cause various level of damage. Heat distribution unevenly causes different of hot spots on the concrete surface. The correlation between high temperature and duration heat raises the heat penetration depth differently which effect on the strength of concrete. The research aims determine substantial reduction of the compressive strength concrete the post-fire as result of the depth of heat penetration. Experimental method by vertical furnaces was used in this research. Specimens use two of the concrete panel which has 1065 mm x 1055 mm and 100 mm thickness and ten the cylinder concrete with the diameter 150 mm and 300 mm height. Combustion of the specimens was performed with gradual heat follow the heat curve according to SNI 1741: 2008. The combustion duration carried out for 2 hours and an hour that result the depth heat penetration differently. The depth heat penetration was measured with a set thermocouple that has embedded in the concrete panels with various depths. The residual concrete strength post-fire was measured using ultrasonic pulse velocity.
Properties of polymer concrete containing active micro filler of palm oil fuel ash
Authors: Khalid Nur Hafizah A , Sam Abdul Rahman Mohd , Mohamed Azman , Lim Nor Hasanah Abdul Shukor , Ariffin Nur farhayu 
Published: November 2019

Abstract
This paper presents the mechanical properties of polymer concrete (PC) containing active-mobilize micro filler of palm oil fuel ash (POFA). As known fact, the wrong chosen of filler for PC will lead to give poor properties of PC. In this study, the POFA was divided into two types; ground POFA and unground POFA. The fine micro filler of ground POFA was compared with calcium carbonate. While, coarse micro filler of unground POFA was compared with silica sand. Before the micro fillers being to be utilized in PC, the micro fillers were characterized under microstructure examinations; particle size distribution and morphology. Then, the mechanical properties of PC with different micro fillers were investigated under compression, flexural, and splitting tensile test. Further test on the denseness of PCs were carried out under ultra-pulse velocity (UPV) test. From the results, it was found that the PC with ground POFA had superior mechanical properties as compared to others. In conclusion, the ground POFA had active micro filler which functioning to fill the gap and to provide the dense packed structure in PCs.
Influences of Yield Strength and Section Depth to the Compression Capacity of Single Cold-Formed Channel Lipped
Authors: Boon-Kai Tan , Poi-Ngian Shek , Kueh-Beng-Hong Ahmad 
Published: November 2019

Abstract
This paper presents a parametric study on single cold-formed channel lipped section subject to axial compression load. The aim of this study is to investigate the influences of yield strength and depth of the section towards the compression capacity of a thin channel section. The study started with the calculation of effective area of a channel section followed by the calculation of compression capacity in accordance to BS EN 1993-1-1. The capacity of the section is then checked with experimental results for validation purpose. Parametric study is conducted to investigate the relationship between the yield strength, section depth and compression capacity. It is concluded that increment in yield strength tend to reduce the effective area of a thin channel section. On the other hand, the increment in section depth has a very little influence to the effective area of a cold-formed channel lipped section.
Finite Element State-Space Model of Edge Initiating Localized Interfacial Degeneration of Damped Composite Laminated Plates
Authors: Koo S.Q. , Kueh A.B.H. 
Published: November 2019

Abstract
In presence of commonly encountered edge delamination problem, a new finite element formulation to examine the effects of a localized interfacial degeneration on the dynamic performance of the cross-ply laminated composite plate adopting the state-space approach is carried out. The stiffness term of the laminate is constructed via the assemblage of the local contribution from each ply sub-element. This involves also the inclusion of an interface layer employing the virtually zero-thickness formulation to model the interfacial degeneration. In addition, the proportional damping and kinematically consistent mass matrix are expressed to form the complete governing formulation. To invoke interfacial degeneration, the degenerated areas are defined from the edge propagating inwards in a localized manner. As the degenerated area of the interface increases, a decreasing pattern is observed in the natural frequency, damped frequency and damping ratio of the plate whereas there exists a rise correspondingly in the loss factor.
Windcatcher as sustainable passive cooling solution for natural ventilation in hot humid climate of Malaysia
Authors: Nejat Payam , Jomehzadeh Fatemeh , Abd. Majid Muhd Zaimi Bin , Mohd Yusof Mohd Badruddin , Zeynali Iman 
Published: November 2019

Abstract
Two third of buildings’ energy consumption is associated to HVAC systems. Windcatcher is a green traditional method of natural ventilation which has been applied for centuries in Middle East. Nevertheless, tropical climate, this green feature is not a common architectural element. In Malaysia as a developing country, buildings account for 23% of total energy consumption and statistics reveals that the their CO2 emissions boomed in recent decade. Due, to high ambient temperature and humidity a great share of buildings energy consumption is related to cooling and ventilation systems. Windcatcher can reduce temperature and provide fresh air for occupants as well as reduction in CO2 concentration inside the building. This old traditional technique can be merged with new building designs to raise the green concept in the building sector. This paper aimed to present a perspective of windcatcher implementation in tropical climate of Malaysia.
Short range visible light communication for high-speed data transfer using low-cost optoelectronic components
Authors: Wijayanto Yusuf Nur , Pristianto Eko Joni , Mahmudin Dadin , Daud Pamungkas 
Published: November 2019

Abstract
High-speed wireless communication is required to carrying out high-quality data. It can be realized by increasing data capacity with enlarging operational bandwidth. As we know, light has very large operational bandwidth with a drawback of large propagation loss in free-pace (air). Therefore, high-speed communication can be realized using light with short coverage area. Light has wide spectrum include visible light region. The visible light is used as a lamp for lighting in a room. The lamp with laser emitting diode (LED) is widely used due to its characteristics of low electric power consumption with bright light. Visible light for communication is promising for smart home. In here, we report our research activity to realize and demonstrate visible light communication with low-cost optoelectronic devices such as laser diodes and photo detectors. Demonstration of the short range visible light communication to carry out digital data is reported.
The Comparison between types of electrodes in Dielectric Barrier Discharge (DBD) plasma for obtaining potable water: a review
Authors: Amri Djulil , Nawawi Zainuddin , Jambak Muhammad Irfan 
Published: November 2019

Abstract
Water is a basic human need in everyday life. However in some areas consumable clean water is still unattainable. There is an urgent need for water purification equipment. Several researches on water purification devices has been carried out with different methods. One of the methods amongst them is using the Dielectric Barrier Discharge Reactors. This method applies appropriate temperatures to make it safe for use. This paper discusses about the various methods used in water purification. The previous researchers discussed a lot about the parameters of the ozone producing capability. They also explained the characteristics and effects of voltage related to voltage sources. Furthermore, the factor of non-potable water is also used as a research material. Based on these previous researches, the researcher reviewed and investigated two of the types of electrodes used - The screw and helix type. They were examined in the same reactor tube length, thickness and tube material dimensions.
Development ion phosphate sensor system for precision farming
Authors: Manurung R V , Prabowo B A , Hermida I D P , Kurniawan D , Sulaeman Y , Heryana A 
Published: November 2019

Abstract
Indonesia as an agricultural country has agricultural lands are quite spacious and most of the people working in this sector. However, agricultural production has not yet fulfilled domestic demand. One effort to increase agricultural production is to apply precision farming method where conducted monitoring and analysis of soil conditions prior to land management activities by using sensor technology. This paper described the development of sensor systems for measuring ion phosphate concentration as the main nutrient. The sensor employs an electrochemical amperometric measurement technique, based conductive polymer as an ion-sensitive membrane through electro-polymerization technique and electrode fabrication using thick film technology. Three configuration electrodes has been used for the sensor and working and auxiliary electrode was made by carbon while the reference electrode fabricated use silver|silver chloride. The ion phosphate sensor was characterized using a standard phosphate solution 10−6 - 10−2 M and produced current about 4 to 41 μA with 98 % linearity, and 150 seconds average of response time. In addition, signal conditioning and data acquisition as electronic circuit system which has support the sensor have been designed and fabricated.
Prediction of wind disaster using kriging spatial interpolation and internet of things
Authors: Kodong Frans Richard , Fajar Juwairiah 
Published: November 2019

Abstract
The Indonesian Disaster Management Agency (BNPB, Badan Penanggulangan Bencana) estimates that wind dissaster are increasing in some parts of Indonesia. The occurrence of wind dissaster can not be predicted, when and where they occur, because the cause of natural factors, namely differences in pressure. Disasters that occur in Indonesia is caused by human factors, namely changes in land use and a way of life that does not pay attention to environmental conservation. Public preparedness in the face of the possibility of disaster increases, when disaster occurs they immediately evacuate themselves to a safer place. Therefore it is necessary socialization and understanding to the community against the possibility of disaster, another thing to think about is preparing early warning facilities and infrastructure. Yogyakarta is one of the areas that must be wary of the threat of a tornado, especially when there will be seasonal changes. The damage caused by the wind disaster is increasing, indicating that wind speed plays an important role in relation to the impact of damage caused. In this research methodology of system development that will be used is System Development Life Cycle (SDLC). For estimation of direction and wind speed will be used Kriging Spatial Interpolation Method. The IoT technology used consists of an anemometer and a microcontroller device and GSM (Global System for Mobile Communications) to obtain or capture real-time data of wind speed and direction sent over the internet to the server.
The Implement of Permanent Magnet Material Variations on the Reduction of Cogging Torque in PMSG
Authors: Herlina  , Rahardjo Amien , Sudiarto Budi , Setiabudy Rudy 
Published: November 2019

Abstract
Permanent magnet synchronous generator is a type of electric machine that is extensively adopted for wind turbines. However, the operation of permanent magnets in the rotor sets up a unique issue, particularly an enormous cogging torque value. Cogging torque is a torque that occurs because the interaction that takes place between the flux provided by a permanent magnet and the slot on the stator. This torque affects the rotor’s initial movement in the generator where the rotation of the rotor will be heavy and not smooth. Therefore, this torque is crucial to be decreased so that indeed in small wind speed inputs, the rotor can rotate. In this research, variations in the handling of permanent magnets will be analysed, especially ALnico, NdFeB, Ceramics and SmCo employing the anti-notch method. From the results achieved, each type of permanent magnet influences the value of tangential flux density which further influences the value of cogging torque reduction. By applying the new anti-notch method, the cogging torque value is significantly reduced compared to the reference generator design.
Analysis of the effect of the cutting speed on specific cutting energy in turning process
Authors: Thamrin Ismail 
Published: November 2019

Abstract
In machining process, the cutting temperature and cutting force produced is an important parameter need to be control or reduce. The cutting temperature and cutting force will effected the tool life thus effected the tool cost. Metalworking fluids are essential coolants and lubricants used in material removal and deformation processes to improve manufacturing productivity.This Research will look the effect of cutting speed to specific cutting energy in workpiece on Turning Process using SCCO2 as the coolant. The results of the analysis on this study will compare the results from simulations using Autodesk Software Simulation of Mechanical 2016 with the results of the journal as a reference. From theoretical calculations, the cutting forces decrease while the cutting speeds increase. Then the specific cutting energy will decrease with the increase of cutting speed. The specific cutting energy is. 1,805 J/mm3 to cutting speed 50 m/min, 1,765 J/mm3 to cutting speed 65 m/min and 1,733 J/mm3 to cutting speed 80 m/min [8].
Effect of modification of spiral pipes on mini boiler to steam temperature and boiler efficiency
Authors: Fusito Y , Thamrin Ismail 
Published: November 2019

Abstract
The purpose of this study is to modify the water pipe in the mini boiler into a spiral pipe, with a pipe length of 196.8 cm. With the aim of increasing the efficiency and temperature produced by mini boilers. In addition, it is also to determine the shape and length of the pipe that is better for use in mini boilers. The results of the test show the temperature rise that passes through the superheater pipe. In the spiral pipe model there is a temperature increase of 10.92 °C, with a steam inlet temperature of 277.62 °C. While the temperature of steam coming out of the superheater pipe is 288.54°C. This shows a temperature increase of 16.6°C, with a superheater pipe steam temperature of 267.4 °C and a steam temperature of 284 °C from the previous pipe model. Testing for heating water, until it becomes steam in the mini boiler is carried out for 90 minutes.The temperature value of the spiral pipe model is better than the previous pipe model. And the efficiency value obtained in the mini boiler using the spiral pipe is 15.055%, while in the previous study only 5.73%.