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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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Application of groundwaters and its effect on environment: a case river in Iran S.M. Mosaddad; M. Ganj
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

There are some water basins in Iran. The Persian Gulf and the Caspian Sea are the best examples. Also there are some rivers in Iran that are originated from them, for example: The Karoon river and Kore river. The The Karoon river is the biggest one in Iran. It passes from Khuzestan state cities. In Shushtaras an aincient city in Khuzestan, this river has a meander through itself and so a setting dam was built in its route. The setting dam named "Bande Mizzan" divides the The Karoon water flowing to another artificial crevasee named "Gar-Gar". The shape and area of the windows on the dam for controlling water currents follow hydraulic and civil engineering concepts. By this, it would be possible to prevent destruction of the coastal zone in Shushtarand coastal erosion has been decreased notably. In fact there are 9 gates as controlling windows on the face of the The Band-e-Mizzan with a scientific engineering view. The hydraulic pattern used in building the dam is followed for other setting dams in Iran. It has been useful to protect coastal zone in cities near rivers and use river water in life and agricultural well. Deby of water flowing through the gates in the dam is calculated and sedimentation has a very small value. Following civil engineering regulations would be useful in building coastal cities and ports like Shushtar In this paper, we model dominant current deby in the meander in rout of the The Karoon river, Shushtar domain
The effect of strain virulence on Agrobacterium rhizogenes transformation efficiency in Eurycoma longifolia Bhavani Balakrishnan; Advina Lizah Julkifle; Syarifah Shahrul Rabiah Syed Alwee; Chan Lai Keng; Sreeramanan Subramaniam
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

Eurycoma longifolia, known locally as ‘Tongkat Ali’ in Malaysia, is popularly sought out as herbal remedy in many parts of South East Asia. Consequently, this has resulted in the indiscriminate collection of the taproot from the wild, leading to fears of extinction among conservationists. Agrobacterium rhizogenes is a naturally occurring soil bacterium that infects injured plants and causes a massive proliferation of roots, known as hairy roots. The objective of this study is to determine the transformation efficiency of 2 different strains of Agrobacterium rhizogenes on somatic embryos of Eurycoma longifolia using transient GUS expression as an indicator of successful transformation. Somatic embryos cultured in vitro for 4 to 5 weeks were used as explants and were pre-cultured for 2 days in full strength MS medium containing 0.5 mg/L IBA added with 1% PVP and 2mg/L DTT. The explants were transformed using Agrobacterium rhizogenes strains AR12 and AR14. GUS assay was carried out 1 week after transformation and observed. Observations indicate that AR12 is more effective in transforming somatic embryos of Eurycoma longifolia compared to AR14. Therefore, Agrobacterium rhizogenes strain AR12 is a potential candidate for the successful transformation of Eurycoma longifolia somatic embryos, leading to the induction of sustainable hairy root cultures
The efficacy of insecticides (Fendona and Malathion) against larvae and adult stages of Musca domestica Hamdan Ahmad; Tan Teng How; Tan Chia Chi; Hamady Dieng; Siti Hajar Sungit; Soleh Musa
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

Malathion and Fendona® (alphacypermethrin) insecticides were tested against larvae and adult stages of house flies, Musca domestica Linnaeus. The percentage mortality of House flies larvae range between 0% and 100%at different exposed dose rate of tested insecticide. Probit analysis was used to determine the LD50. The value LD50 for malathion without food medium was 0.833 -l/larvae and treatment with food medium was 0.895 -l/larvaerespectively. The LD50 for Fendona® without food medium was 0.545 -l/larvae and 0.870 -l/larvae for treatment with food medium. The LD50 values for Fendona® in both treatment was lowers compared with malathion, which meansthat alphacypermethrin is more toxic than malathion. Different with the test on adult house flies, the knockdown time values for alphacypermethrin at KT50 is 9.876 minutes and KT95 is 20.495 minutes against female adult house fliesand were significantly lower than malathion (KT50 is 75.17 minutes and KT95 is 103.38 minutes respectively). Result also showed that a total of 1.0-l of Fendona® is reacting more effective than 1.0-l of malathion. Therefore, we canconclude that Fendona® is the most effective insecticide towards larvae and adult stage of M. domestica. The effectiveness of both chemicals was affected when treated larvae was in the rearing medium
Testing mAs Reciprocity Law using a screen-film system and an exposure meter on a diagnostic xray machine Sabar Bauk; Siti Norbaieah Mohamad Hashim
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

Reciprocity law states that the relationship between exposure and optical density (OD) should remain constant regardless of the exposure rate. In this experiment two different detectors were used to prove the reciprocity law using an exposure meter detector and a screen-film system. Four different valuesof kVps were used in this experiment which were 40 kVp, 50 kVp, 60 kVp, and 70 kVp. Different values of mAs were used from 1 mAs up to 50 mAs. Other factors used in this experiment were maintained constant such as the distance from focal spot to detector 100 cm and collimator opening 15 cm x 10 cm to make sure all contributions from the surroundings were approximately the same. In this experiment, acceptability range of the reciprocity law used for the screen-film OD was ±5% and acceptability range of the absorbed dose using the exposure meter was ±10%. From the result, it shows that at low kilovoltage which was 40 kV the OD and absorbed dose values disobeyed the reciprocity law, but at high kilovoltage, the OD and linearity value obeyed the reciprocity law.
The Effect of Bio Liquid Fertilizer Application on The Growth and Yield of Two Varieties of Maize (Zea mays L.) Zikril Maulana; Zaitun Zaitun; Jumini Jumini
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

The  research  was  conducted  at  the  experimental  field  of  Assessment  Institute  for  Agricultural Technology  (BPTP)  Lampineung  Banda  Aceh.  The  experimental  arranged  in  a  randomized complate block design in a factorial design with three replications.  Bio liquid fertilizer Ultra Gen consisted of four levels, i.e. without liquid fertilizer (P0), 0,8 liter ha-1 (P1), 1,7 liter ha-1  (P2),  and 2,5 liter  ha-1 (P3).  Varieties consisted of two levels, i.e.  Pertiwi (V1) and Local Aceh (V2).  Parameters observed in this research were plant height and number of leaves aged 15, 30, and 45  days  after  planting,  corn  length  with  cornhusk  and  without  cornhusk,  corn  diameter  with cornhusk  and  without  cornhusk,  corn  weight  with  cornhusk  and  without  cornhusk,  weight  of 100  grain  dry  seeds,  shelled  seeds  weight  dry  per  plant  and  yield.    The  result  showed  that concentration  of  0.8  liter  ha-1  gives  better  results  compared  to  concentrations  of  other  bio liquid  fertilizer  Ultra  Gen,  and  Local  Aceh  variety  of  maize  crop  is  better  compared  to  Pertiwi variety   
Planning and analyzing DVB-T technology in Pulo Aceh using high altitude platform station Rizal Munadi; Anwar Siddiq; . Roslidar
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 1, No 2 (2011): Engineering
Publisher : Syiah Kuala University

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Abstract

 Abstact. The development of telecommunication technologies has shown remarkable improvement rapidly in this decade, one of which is in information computer and telecommunication technology. On the other hand, the services can be provided with the advance of information technology has not reached all levels of society. In Indonesia, geographic and demographic factors are among the obstacles that limit the dissemination of information. This generally occurs in remote areas such as Pulo Aceh region. To solve the problem, this study proposes a solution to overcome the isolation of information. The technology chosen for the dissemination of information is the Digital Video Broadcasting-Terrestrial (DVB-T) using High Altitude Platform Station (HAPS) technology to provide the services. The implementation of HAPS technology is expected to be able to be used as an alternative for minimizing the high cost of terrestrial infrastructure investment. This discussion is devoted to the planning of implementing HAPS in Pulo Aceh to serve the needs of communication to that community. Based on ITU recommendation, the results show that the analysis of link budget calculation with elevation angle, 34.060 has met the standard requirement. It can be concluded that Pulo Aceh can be served by a single HAPS both in terms of capacity and coverage area.
The effect of ethanol extract Coleus ambonicus L on antibody titer of white rats (Rattus norvegicus) trough SRBC as antigen Melva Silitonga; Eriana Situmorang
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

This study aimed to determine the effect of ethanol extract of leaves bangunbangun (Coleus ambonicus L) antibody titer as humoral immunity and body weight in Wistar strain rats by using the sheep red blood cells (SRBC) as antigen. This study used 24 male white rats were randomly divided into fourtreatment groups consisting of six rats. The first group was given distilled water as a control, the second group was given 500 g / kg ethanol extract bangunbangun (EEC), the third group was given 500 g / kg EEC SRBC, and the fourth group was given distilled water+SRBC. EEC was administered orally every day for thirty days. SRBC administered intraperitoneally of 0.1 ml on day eight and day fifthteen. On day 31, blood was collected by decapitation, and collected in a tube that has been coated with an anticoagulant, and centrifuged to obtain serum. Antibody titers were measured by haemagglutination method. Weight gain is obtained by calculating the difference in initial weight and final weight of research. The data obtained were tabulated and analyzed by ANOVA and LSD test. Results of data analysis showed that administration of EC for 30 days in rats can increase the antibody titer significantly, and administration of EC for 30 days in rats didnt influence the gain of body weight
Algorithm Development to Predict the Dynamic Characteristic of a Multi Rotor System Amir Zaki Mubarak
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

Rotor systems have been widely used in mechanical applications in industry andeven in daily live equipments. The motion effects of the rotor in certain cases can cause discomfort to the user even can cause of failure to the system itself. Therefore the dynamic characteristic analysis of the system is very essential to be analysed in designing a rotor system. By the development of computer technology, the analysis can be straightforwardly performed through numeric method by utilizing existing computational software, i.e. MATLAB. Existing researchers have developed the algorithm to analyse the dynamiccharacteristic of Jeffcot rotor and dual rotor systems by using MATLAB. The objective of this research is to conduct further investigation in developing algorithm to predict the dynamic characteristic of a multi rotor system. The analysed rotor system consists of a rotor shaft and several disks. The analysis is conducted for a variation number of disk. The equation of motion of the system is derived based on the potential and kinetic energy of the system. Lagrange‟s equation is then applied to the equation of motion that it can be solvednumerically. Based on the equation of motion, a computational algorithm is then developed to determine the natural frequency of the rotor shaft which is the main objective of this research. The algorithm is developed and simulated in MATLAB. The simulation result is closed with theoretical analysis.
The application of biogas sludge as organic fertilizer on the grwoth of spinach plant (Amaranthus tricolor) Nurzainah Ginting; E. Novilda; . Mustamu
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 North Sumatera Province has focused on agriculture in its development, a lot of agriculture researchs need to be conducted.   A research of biogas sludge ( from cattle dung) application on spinach plants was done on February until April 2012.  The research’s objective were to determine chemical quality of biogas sludge as organic fertilizer, the growth response of spinach plants and the economic benefits of biogas sludge.  The research was used Completely Randomized Design (CRD) with seven replications and five treatments. The results showed that chemical quality of biogas sludge were as follows : N, P, K, C and pH 1.25% , 0.065,  0.097%,  27.26%, 9.02.  C/N ration was 21.80.  These chemical quality indicated biogas sludge can be used as good organic fertilizer. Data on  average plant height, leaf number, canopy biomass and root biomass indicated that   250 ml per day biogas sludge could be an alternative of 2.5 g NPK  as early fertilizer.  The highest yield of five treatments was application of 250 ml biogas sludge with 2.5 g NPK at the beginning of spinach planting to the parameters plant height, canopy biomass and root biomass.  Biogas sludge application on spinach plants in this research gave economic benefits as much as Rp. 205.554; which was obtained every 30 HST and R/C ratio was 2,93 means that every Rp. 1,- costs in spinach planted wil get Rp. 2,93,- revenue   
Study Of Feasibility Of Meandg’s (Litsea Sp) Sawdust For The Removal Of Cadmium From Simulated Aqueous Solution Muhammad Nazar; Ibnu Khaldun; Kana Puspita; . Habibati
Proceedings of The Annual International Conference, Syiah Kuala University - Life Sciences & Engineering Chapter Vol 5, No 1 (2015): Engineering
Publisher : Syiah Kuala University

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Abstract

In this research, a series of batch laboratory experiments were conducted to examine the feasibility of Meandg’s (Litsea sp) saw dust for the removal of cadmium from simulated aqueous solution by using adsorption method. The research was carried out by studying the influence of pH of initial solution, contact time, adsorbent dosage, stirring speed, and the initial concentration of cadmium. The sawdust particle size used was 150 mesh and the experiments were conducted at room temperature of 27oC (±2oC). The residual concentration of cadmium from all batch experiments were analyzed using Atomic Adsorption Spectrophotometer (AAS) and each component equilibrium data was analyzed using Langmuir and Freundlich adsorption isotherms. The research findings shown that the optimum conditions are found to be at the pH of 6, the initial concentration of cadmium of 500 ppm with contact time of one hour, 3 gram of sawdust, and the optimum stirring at the speed of 350 rpm. The adsorption capacity of medang sawdust according to Langmuir and Freundlich isotherms are found respectively to be of 2.29 mg/g and 0.55 mg/g.

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