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Proceedings of Annual International Conference Syiah Kuala University - Life Sciences & Engineering Chapter
Published by Universitas Syiah Kuala
ISSN : -     EISSN : -     DOI : -
Core Subject : Education, Engineering,
Engineering Other
Arjuna Subject : -
Articles 402 Documents
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Measuring a level of water pollution in sungai pinang using a mathematical model Mohd Amirul Mahamud; Rajasegeran Ramasamy
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 2 (2013): Engineering
Publisher : Syiah Kuala University

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Abstract

Mathematical models are now a popular tool in many applications such as physics, economics and engineering; and provide useful information for decision making and planning. Water pollution in Malaysia has reached a level that needs attention and intervention from environmental department and government. In order to make a strong case, this paper has done a study on measuring the pollution level of Sungai Pinang which is located in Penang Island, Malaysia. Advection-Dispersion equation is one of the mathematical models that often use in evaluating the level of water pollution in the river. This paper applies this model and compares the result of this study with the studies done in the previous research worldwide to evaluate the severity of the pollution. The authors hope that this paper will create awareness to relevant department and also to community in general
Healthy House as Indicator to Realize Healthy City and its Relationship with the Role of Community in Medan City Lita Sri Andayani; Juliandi Harahap
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

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Abstract

A healthy city connotes a city that is clean, comfortable, safe and healthy for inhabitants, which is achieved  through  the  implementation  of  the  arrangements  and  agreed  activities  between communities and local government units. Healthy house is one indicator of a healthy city. A healthy house meets the health requirements as measured by three parameters: components of house, sanitation facilities and the behavior of occupants. This study aimed to analyze if the houses in Medan qualify for the attainment of a healthy city, determine the knowledge of community in terms of healthy house, healthy city and the role of community, and to find out if there is a significant relationship between the role of community and having a healthy house. The study design used is survey with quantitative and qualitative approaches. Research sites were the 21 districts in the city of Medan wherein 400 respondents were selected through proportional random sampling. Data were analyzed quantitatively and qualitatively. The results showed that in the city of Medan, only 30% of houses were healthy and 70% were not. 63.0% of the respondents have good knowledge about healthy house  and  57.8% have good  knowledge about healthy city. Furthermore, the community perceived to have played a good role as much as 75.5% in the effort to realize a healthy home/city. The community’s role has a positive and significant effect on healthy house in efforts to achieve a healthy city in Medan (p = 0.04). It is recommended that the government of Medan City draw up a program of healthy house and healthy city and involve related stakeholders, increase  community  participation from  the  beginning of  planning  stage  in  order  to  increase community involvement in the implementation of development and formation of Healthy City Forum.
Effect of combination of dispersion and non linear term to downstream running nonlinear water waves MARWAN RAMLI; T. KHAIRUMAN3; SAID MUNZIR
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 1 (2014): Engineering
Publisher : Syiah Kuala University

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Abstract

This paper discuss the impact of dispersion and non-linear terms combinations the surface wave equation particularly on the peaking phenomena of the wave water that initially in the form of a bichromatic wave. The study for both of these terms are focused on the position where the bichromatic wave experience its highest peaking and its related bichromatic amplitude amplification. In the previous study, the position where the bichromatic wave experience its highest peaking is of order   and its bichromatic amplitude amplification is of order , where  and  are the amplitude and frequency of the bichromatic wave envelope, respectively. This result is based on the fifth order Korteweg de Vries (KdV) equation and the quantity that obtained is called Maximal Temporal Amplitude (MTA). However, despite the the position where the bichromatic wave experience its highest peaking suits the result  of Stansberg experiment and the result of numerical calculation using HUBRIS, its related bichromatic wave amplitude amplification is not close enough. The source of this discrepancy is suspected from the dispersion and non-linear terms of the KdV equation used. This study shows that the existence of the dispersion and non-linear terms influences the position of  Maximal Temporal Amplitude (MTA) and its bichromatic wave amplitude amplification.  For the coefficient of dispersion term of 1.0065 and  nonlinear term of , the position of MTA and bichromatic wave amplitude amplification suits the result of Stansberg experiment and the result of numerical calculation using HUBRIS
Effect of moisture content and amount of Hexane on in-situ transesterification of jatropha seeds for biodiesel production Ryan Moulana; . Satriana; M. Dani Supardan; Wirda Aina
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 2 (2013): Engineering
Publisher : Syiah Kuala University

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Abstract

The aim of this research is to study in-situ transesterification technique of jatropha seeds for biodiesel production. This research was conducted using a randomized factorial block design consisting of two factors that is moisture content of jatropha seeds (2% and 3%) and amount of hexane that used as a co-solvent (0 ml, 75 ml, 95 ml, 115 ml and 135 ml). The experimental result shows that the highest yieldbiodiesel of 78.72 % obtained at process condition of jatropha seeds moisture content of 2% and amount of hexane of 115 mL. The physico-chemical analysis of biodiesel procured the acid number of 0.35 mg KOH/g, density of 0.89 g/mL and viscosity of 3.04 mm2/ s that meet requirement of Indonesian Nasional StandardNo. 04-7182-2006.
The Effect of Pb Dopant on The Critical Temperature of BSCCO-2212 Superconducting Crystal . Nurmalita
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 2 (2012): Engineering
Publisher : Syiah Kuala University

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Abstract

A reseach about the study on the critical temperature of BSCCO-2212 superconducting crystal with slow cooling periode of 90 hours objected for knowing the critical temperature of superconducting crystal. An experiment has been carried out on the formation of BSCCO-2212 superconducting crystal by the melt-textured growth at 9300C. The syntheses were conducted with the molar ratio of the Pb dopant varied between 0 and 0.4 , while the period of the slow cooling process fixed at 90 hours. Characterization of samples with the curve R-T that sample with Pb dopant ratio 0 has the highest critical temperature  of 60K and sample with Pb dopant ratio 0.2 and 0.4 has the critical temperature of 57K and 52K respectively
Water problem in the UAE mountain areas: A case study on the east coast farming areas Saif Al Qaydi
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 2, No 1 (2012): Life Sciences
Publisher : Syiah Kuala University

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Abstract

As a result of the recent unwise use of water pumped from underground resources, several East Coast (EC) farms (70%) became appended by farmers in the UAE mountain areas. The EC of the UAE is one of these areas where farmers can’t utilize their farmland because of the increased salinity in irrigation water. This problem increased at the end of the last century as a result of the increased population and the expanding area of EC cities which put more pressure on the existing underground water resources. This paper highlights the main reasons behind this problem and examines both the government and the EC farmers' efforts to reduce the impact of water shortage on EC farming activities. Farmer’s points of views were collected through direct personal contacts to evaluate the nature and the volume of this problem. Future alternatives are suggested to help in reducing the effect of water shortages on the farming activities in the EC of the UAE.
The effect of MA/MAPE combination as coupling agent in formation of rice husk and recycled HDPE-based composites FARID MULANA
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 1 (2014): Engineering
Publisher : Syiah Kuala University

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Abstract

In this study, composites were made from source of recycled HDPE and rice husk as filler as well as addition of double coupling agent in order to improve mechanical properties of produced composites. The aim of this study is to know the effect of addition of double coupling agent of maleic anhydride (MA) and maleic anhydride polyethylene (MAPE) on quality of produced composites. In this research, the ratio of MA and MAPE that applied are 1:1; 1:2 and 2:1. The hot press method was used in order to form these composites. The composite formation process was perfomed at medium temperature of 170 oC for 30 minutes. After pressed manually and heated at these temperature later composite samples were cooled to room temperature naturally, and finally composites were tested to know its mechanical properties of tensile strength and bending strength as well as water absorption capacity. The results showed that the simultant addition of MA and MAPE as double coupling agent can improve the quality of the produced composites. The amount of MAPE that is added in MA coupling agent affected both the value of the tensile strength and bonding strength of the composites. The similar characterstics also occurred on property of water absorption on immersed composite. By addition of the MAPE and MA together then both coupling agents are increasing bonding adhesion between matrix and filler becomes stronger and tighter. The highest value of tensile strength of 5.75 MPa was obtained on the composite ratio of MA:MAPE= 1:2. While the highest value of bending strength of 4.1 MPa was also obtained on the composite with the same ratio. The highest water absorption of produced composites was found on composite by adding of ratio MA:MAPE=2:1 that is 9.4%
Toll-Like Receptor 3-4 Expression Decrease in BALB/c Diabetic Mouse Models Muhaimin Rifa’i; Aris Soewondo; M. Sasmito Djati
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 2 (2015): Life Sciences
Publisher : Syiah Kuala University

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Abstract

In  this  study, we observed the effect of propolis  extract on immunological function in diabetic mouse models with the aim of highlighting the dynamics of immunological status in type-2 diabetes. In this study we tested the ability of propolis to normalize homeostasis. Here we showed that propolis improve homeostasis by slightly increasing the level of TLR expression. The results of this study differ from previous findings which reported that TLR expression increased in diabetes mellitus and most treatment is intended to suppress the expression of TLR. In this study we found that TLR-3 and TLR-4 expression decreased in mouse models of STZ induced diabetes mellitus. Furthermore, we found that administration of propolis showed an increase of red blood cell precursors (TER-119) and improve the ratio of CD4:CD8 dependent manner.
Ten years since 2004 Sumatera earthquake and three years since 2011 2011 Tohoku earthquake: Early-warning system alone cannot save everyone KIMATA FUMIAKI
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 4, No 1 (2014): Engineering
Publisher : Syiah Kuala University

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Abstract

Much  Japanese watched the tsunami video attacking  Banda Aceh on the 2004 Sumatra, and they have a lot of tsunami disaster memories, and early tsunami warming system. However,  we lost about  20,000 people by the 2011 Tohoku earthquake tsunami.  It makes clear that we never rescue the people from the tsunami only by an early warming syste. In February 2004, a research team of Nagoya University was coming to Banda Aceh to investigate the disaster on th 2004 Sumatra earthquake tsunami (I was a research member of Nagoya University  at the 2004 Sumatra earthquake, and joint the research team  since the first field survey in 2012). Not only the natural scientists but also the humanities’ scientists, including Indonesians join the research team, and field researches in Aceh have been continued every year until now. As results of the research, eight annual reports totally to 1,000 pages and four books, including writings in Indonesia are published. Through the first interviews in Banda Aceh, we understand that not so many peo- ple remained the tsunami coming after the earthquake felt, and when they watched the tsunami they never shouted ”Tsunami!”. They shouted out,”Sea is ascending”. As re- sults, there are many fatalities by the tsunami along the coastlines.They had no time to evacuate from the tsunami, because they started the evacuation after they watched the attacking tsunami. In one village, only the people going out the village to the down-town were saving their lives.
Improving soil chemical properties by NPK fertilizer application and residual rice husk biochar effect on irrigation paddy field Diana Samira; . Sufardi; . Zaitun; . Chairunas; Anischan Gani
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 3, No 1 (2013): Life Sciences
Publisher : Syiah Kuala University

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Abstract

The research objective was to study effects of NPK fertilizer and biochar residue on soil chemical properties of paddy on second planting. Experiment was arranged in a randomized complete block design in a factorial design with four replications. Biochar consisted of two levels, i.e. without biochar residue and with biochar residue 10 ton ha-1. NPK fertilizer consisted of three levels, i.e. without NPK, NPK 60 kg ha-1, and NPK 120 kg ha-1. The result showed that application NPK fertilizer and biochar residue on second planting increase total N 22.22%, available P 12.18%, available K 17.50%, and organic C 56.69% compare than first planting

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