Pekanbaru, Indonesia

Islamic University of Riau

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Pekanbaru, Indonesia
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Permana I.,Islamic University of Riau
Indonesian Journal of Electrical Engineering and Computer Science | Year: 2016

One of important part on speaker identification is the measurement of sound similarity. This study has compared two of the similarity measurement techniques in the noisy voice.First techniqueis done by using smallest vector sum of pairs and second technique is done by using frequency of occurrence of smallest vector pairs. Noise in the voice can reduce accuracy of speaker identification significantly. To overcome this problem, the two of similarity measurement was combined with Least Mean Square (LMS) for remove noise. Results of the experiments showed that the use of LMS can improve the accuracy of speaker identification at the two of similarity measurement techniques. Second technique produces better accuracy than first technique. Experimental result also showed improvement of LMS learning rate can improve the accuracy of speaker identification. © 2016, Institute of Advanced Engineering and Science. All rights reserved.


The pavement of the nailed-slab system has been proposed as an alternative solution for addressing the rigid pavement problem in soft soils. This system is used for developing a rigid pavement. The simple method of using an equivalent modulus of subgrade reaction (k') in nailed-slab system analysis was proposed by a previous researcher. This modulus consists of the modulus of subgrade reaction from a plate load test (k) and an additional modulus of subgrade reaction due to pile installing (δk). The additional modulus of subgrade reaction has been proposed by some authors. The displacement factor was used in determining the additional modulus of subgrade reaction. This factor is difficult to define. In this research, the prototype test of a nailed slab with single-pile installation was conducted to learn the validation of the theory of the additional modulus of subgrade reaction on a full-scale dimension. The prototype was constructed on soft clay, and the connection between the pile and slab was perfect monolithically. This system was loaded by centric load. A new curve of the displacement factor is proposed. Calculated deflections based on this curve were compared to the observed deflection and resulted in good agreement with the observation. Hence, it can be used in preliminary design.


Nurhayati D.M.,Indonesia University of Education | Hartono,Islamic University of Riau
AIP Conference Proceedings | Year: 2017

This study aims to determine whether there is a difference in the ability of understanding the concept of mathematics between students who use cooperative learning model Student Teams Achievement Division type with Realistic Mathematic Education approach and students who use regular learning in seventh grade SMPN 35 Pekanbaru. This study was quasi experiments with Posttest-only Control Design. The populations in this research were all the seventh grade students in one of state junior high school in Pekanbaru. The samples were a class that is used as the experimental class and one other as the control class. The process of sampling is using purposive sampling technique. Retrieval of data in this study using the documentation, observation sheets, and test. The test use t-test formula to determine whether there is a difference in student's understanding of mathematical concepts. Before the t-test, should be used to test the homogeneity and normality. Based in the analysis of these data with t0 = 2.9 there is a difference in student's understanding of mathematical concepts between experimental and control class. Percentage of students experimental class with score more than 65 was 76.9% and 56.4% of students control class. Thus be concluded, the ability of understanding mathematical concepts students who use the cooperative learning model type STAD with RME approach better than students using the regular learning. So that cooperative learning model type STAD with RME approach is well used in learning process. © 2017 Author(s).


Sutopo W.,Sebelas Maret University | Kadir E.A.,Islamic University of Riau
Telkomnika (Telecommunication Computing Electronics and Control) | Year: 2017

In general, the process of developing new standards had problems in early the development process. In particular to identify what steps are necessary to develop new standards. Methodology of writing this article was conducted using the methodology of Framework for Analysis, Comparison and Testing of the Standard (FACTS). The results of this paper are the new standard for the Indonesian National Standard of Lithium-ion Battery Cell Ferro Phosphate for Electric Vehicle Alications. The standard of development data is can be use by automotive industrial and also for the government to decide new policy on electric vehicle especially in Indonesia. © 2017 Universitas Ahmad Dahlan.


Kadir E.A.,Islamic University of Riau
Journal of Communications | Year: 2017

Currently container terminals are busy to handle high volume of container shipping movement. Conventional operational procedures have difficulties in handling containers movement, thereby slowing clearances and even resulting in some administrative issues in terminal operation. This paper presents an development of Information and Communication Technology (ICT) in a container terminal in order to speed up clearance process. A business process is proposed in container terminal for management system operational flow. Radio Frequency Identification (RFID) technology and ICT are incorporated for the purpose of identifying driver, vehicle, e-seal, and number of containers. The RFID middleware manages all the information between Gate Checker (GC) and Container Terminal Management System (CTMS), as well as RFID reader. The middleware receives information requested by GC from reader and is then verified by CTMS database. Both types of passive and active RFID tags are used in operation of container terminal. In order to comply with the global standard of container terminal ports, a passive RFID was used for driver and vehicle tag, while for container tag used e-seal which is an active RFID tag. The proposed system was implemented and tested at a private Container Port. ICT system implementation at receiving station gate of the container terminal will reduce truck queue and manpower in-charge for operation. The clearance process in conventional manual operational procedure is significantly reduced from average 248 second per container to 57 second per container. © 2017 Journal of Communications.


Abdurrahman M.,Islamic University of Riau
AIP Conference Proceedings | Year: 2017

Enhanced oil recovery (EOR) is a proven method for increasing oil production in many oil fields in the world. Huge oil remaining in the reservoir after primary and secondary recovery stage are the main reason for developing EOR methods. Approximately of 49.50 billion barrels oil as a candidate for EOR activities in Indonesia. This present study focuses on the chemical EOR activities involved surfactant and polymer. This research based on pertinent information from various resources such as journal papers, conference papers, and report from the government. Based on this information, this paper explain in detail the progress of each project and it shows the potential oil field employ chemical EOR in the near future. Generally, the EOR activities can be categorized into two phases such as preliminary study phase and field implementation phase. In the preliminary study, the activities simply involve experimental and/or simulation works. Following the preliminary is the field implementation phase which can be categorized into three phases such as field trial, pilot project, and full-scale. In fact, several activities have been conducted by Lemigas (government oil and gas research center), Institut Teknologi Bandung, Institut Pertanian Bogor. These activities focused on laboratory and simulation work. Those institutions have been developing the chemical formula collaborating with oil companies for applying the EOR method in their oil fields. Currently, status of chemical EOR activities include 5 oil fields under pilot project and 12 oil fields under field trial. There are 7 oil fields applying surfactant, 4 oil fields by alkaline-surfactant-polymer (ASP), 2 oil fields by polymer, 1 oil field by surfactant polymer (SP), and 1 oil field by caustic. According to this information, we will have insight knowledge about the EOR current activities, the main issues, future activities on chemical EOR in Indonesia. Moreover, this study can became the preliminary information for researchers who interested conducting further research and development on the chemical EOR activities in the near future. © 2017 Author(s).


Jumin H.B.,Islamic University of Riau
Ecology, Environment and Conservation | Year: 2016

Protoplasts isolated from embryogenic callus of Murraya paniculata (L. Jack.) were cultured in MT (Murashige and Tucker, 1969) basal medium containing 5% sucrose supplemented with kinetin, malt extract (ME) and 0.6 M sorbitol. About 85% of the surviving protoplasts formed a cell wall within 6 d of culture and the first cell division was observed 7 days after isolation. The highest plating efficiency was obtained on MT basal medium containing 5% sucrose supplemented with 0.01 mg L-1 kinetin 600 mg L-1 ME, MT basal medium containing 5% sucrose and supplemented with 0.01 mg L-1 Indole-acetic-acid (IAA) was found to be a medium suitable for the development somatic embryos into heart-shaped somatic embryos. The highest percentage of shoot formation was obtained using 0.1 mg L-1 Indole-acitic-acid (IAA) 0..1 mg L-1 gibberellic acid (GA3). In this investigation 40 plants were survived and grew normally in the soil. After two months maitained in the soil plants formed flower and flower developed into fruits on the soil treated with BA. Copyright © EM International.


Sulaiman A.,Islamic University of Riau | Sulaiman A.,National University of Malaysia | Razman M.R.,National University of Malaysia
Journal of Food, Agriculture and Environment | Year: 2010

Basel Convention 1989 on the control of hazardous wastes has incorporated the precautionary principle. The precautionary principle plays an important role in the area of international environmental law and governance. The use of the precautionary principle in the area of international environmental law and governance is largely in respond to the inevitability of every human being around the globe to protect environment from being polluted in their surroundings. As the Basel Convention is concerned, the Convention created an essential mechanism to protect environment from negative effects of hazardous wastes globally. Therefore, this article examines the use of the precautionary principle in the Basel Convention 1989 with relation to the international environmental law and governance by identifying actions and cases which deal with environmental protection. This article is also identifying the relation between the Basel Convention 1989 which applied the precautionary principle and Rio Declaration as a means to protect Mother Nature.


Emrizal,Islamic University of Riau | Emrizal,National University of Malaysia | Razman M.R.,National University of Malaysia | Jahi J.M.,National University of Malaysia
Research Journal of Applied Sciences | Year: 2011

Criminal law plays an essential role in human habitat and environment protection. The used of the criminal law in human habitat and environmental protection is largely in respond to the inevitability of every human to protect human habitat and environment from being polluted in their surrounding and habitat. Therefore this study examines the used of the criminal law with relation to the human habitat and environmental protection from the national law approach by identifying actions and cases which deal with human habitat and environmental protection. This study is also identifying the relation between the criminal law and the concept of sustainability as a means to protect human habitat and environment. © Medwell Journals, 2011.


Emrizal,Islamic University of Riau | Razman M.R.,National University of Malaysia
Research Journal of Applied Sciences | Year: 2013

Criminal law and precautionary principle hand in hand play essential roles in environmental sustainability. The used of the Criminal law and precautionary principle in environmental sustainability is largely in respond to the inevitability of every individual to protect environment from being polluted in their surroundings. Therefore, this study examines the used of the Criminal law and precautionary principle hand in hand with relation to environmental sustainability from the legal approach by identifying actions and cases which deal with environmental sustainability in order to achieve sustainable development. © Medwell Journals, 2013.

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