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CRS-ForMIND International Conference 2017 - Call for Papers

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Page 1, data 1 to 10 of 36, displayed in 10 data per page
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1.

Ladang berpindah dan model pengembangan pangan Indonesia: studi kasus daerah dengan teknik ladang berpindah dan pertanian modern

Muhammad Rifqi
National Conference Innovation and Application of Technology in Industry (2017)

Muhammad Rifqi (1 records)

Abstract
Ladang berpindah telah dilakukan sejak 10.000 tahun sebelum masehi oleh masyarakat adat. Banyak anggapan bahwa ladang berpindah adalah kegiatan primitif yang merusak hutan. Akan tetapi, pada beberapa kasus, perladangan berpindah justru mampu mempertahankan keanekaragaman hayati ekosistem di sekitarnya. Review paper ini bertujuan untuk mempelajari konsep dasar teknik perladangan berpindah yang dilakukan oleh masyarakat adat di Dusun Sungai Utik, Kalimantan Barat, serta perbedaannya dengan sistem pertanian modern di Kecamatan Bawen, Semarang. Hasil review menunjukkan bahwa sebagian besar teknik pertanian modern berpotensi merusak ekosistem. Sebanyak 75% danau Rawa Pening telah rusak akibat invasi enceng gondok (Eichornia crassipes) akibat suplai nutrien berlebih yang masuk ke dalam danau oleh kegiatan pertanian modern berskala besar. Sistem monokultur pada pertanian modern juga berdampak pada meningkatnya populasi hama. Model pengembangan pertanian modern berkelanjutan menekankan pada sistem pertanian polikultur. Keanekaragaman predator yang lebih tinggi pada pertanian polikultur mampu mengendalikan populasi hama. Pengendalian biologis terhadap hama dapat menurunkan tingkat penggunaan pestisida yang tidak ramah lingkungan. Penggunaan konsep ladang berpindah dalam sistem pertanian modern dapat menjadi solusi atas permasalahan pangan di Indonesia.

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2.

THE INFLUENCE OF COOPERATIVE INTEGRATED RAEDING AND COMPOSITION (CIRC) MODEL TROUGH THE RESULT IN READING AND WRITING SKILL IN THE DEAF CHILDREN

Muhammad Nurrohman Jauhari (2 records)

Abstract
Reading and writing is a kind of skull in written language. Trough the written language someone got information, got science and also got knowledge. The deaf children has a lack in reading and writing. From observation in five grade SDLB B KaryaMulia I Surabaya, skill a reading and writing deaf children is still lower. The researcher has big hope toslove this problem by using Cooperative Integrated Raeding And Composition (CIRC) model. This research in reading and writing skill. The research supposed to analyze the influence of using Cooperative Integrated RaedingAnd Composition (CIRC) model trough the result in reading and writing skill the student of five grade in SDLB B KaryaMulia I Surabaya The study in quantitative research which used pre experiment. Research used one group pre test and post test. Method the data was obtained and test. The data analyzed use non parametric statistic. The result from pre test is 33,3 after giving intervension for 8 time in 75 minutes every time. The result post test is 73,9. Analyze in sign test (Zh) while the table 5% two side 1,96 the result is 2,47. It means there is influence in using Cooperative Integrated RaedingAnd Composition (CIRC) model trough the reading and writing skill in five grade of SDLB B KaryaMulia I Surabaya

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3.

Development Of Symbols Signalong Indonesia As A Media Communication Children With Special Needs

Muhammad Nurrohman Jauhari (2 records)

Abstract
The use of symbols as a medium of communication for children with special needs still exist in Indonesia. At this time Indonesia uses the existing symbols are acceptable under international conventions, such as the symbols of the traffic in the form of symbols, letters, numbers, words, or a combination of them that serves as a warning, prohibition, orders or instructions. The problems that arise at this point is the absence of a symbol signalong Indonesia as visual support in understanding words on cue signalong Indonesia. This study aims to produce prototype Symbol Signalong Indonesia For Media Communication Children with Special Needs as visual cues support signalong Indonesia. Goals from Indonesia signalong symbols are special needs children who have communication barriers, obstacles and barriers motoric intelligence. Methods of data collection in this research is using Likert scale and questionnaire. Research development development model Borg and Gall (2007) on the adaptation of the development model of Dick and Carey. The quantitative data obtained from the scores given by the validator. The qualitative data obtained from the comments and suggestions validator is used to repair symbol Signalong Indonesia. Prototype symbol signalong Indonesia produces 159 symbols in accordance with Indonesian culture in the pack in the form of a book. Expert validation symbol indicates that the symbol Signalong Indonesia otherwise very decent. The results of analysis of the feasibility of signalong Indonesia given a score of 5 and Validation practitioners signalong Indonesia gesture shows that the symbol Signalong Indonesia otherwise very decent. The results of analysis of the feasibility of signalong Indonesia given a score of 4.75

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4.

Ab initio molecular dynamics simulation of ethanol decomposition on platinum cluster at initial stage of carbon nanotube growth

Yasushi Shibuta, Kohei Shimamura, Rizal Arifin, and Fuyuki Shimojo
Chemical Physics Letters, Elsevier (2015)

Rizal Arifin (5 records)

Abstract
Ethanol decomposition on a platinum cluster is investigated by ab initio MD simulation. As the dehydrogenation proceeds, the Mulliken charge of the methylene carbon becomes a positive value, whereas that of the methyl carbon keeps a negative value. Especially, the Mulliken charge of the methylene carbon in CHxCO (x = 0, 1, 2 and 3) fragment molecules takes a large positive value. These fragment molecules correspond to those with Csingle bondC bond that dissociated in the MD simulation. It suggests the large deviation in the Mulliken charge between methylene and methyl carbons is the key factor inducing the Csingle bondC bond dissociation.

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5.

Ab Initio Molecular Dynamics Simulation of Ethylene Reaction on Nickel (111) Surface

Rizal Arifin, Yasushi Shibuta, Kohei Shimamura, Fuyuki Shimojo, Shu Yamaguchi
The Journal of Physical Chemistry C, American Chemical Society (2015)

Rizal Arifin (5 records)

Abstract
We performed ab initio molecular dynamics (MD) simulations of ethylene molecules on the nickel (111) surface to understand the initial stage of graphene growth via a chemical vapor deposition process. Several hydrogen atoms are dissociated from ethylene molecules during the MD simulations in three different reaction mechanisms. It is seen that the ethylene molecules are easily chemisorbed on the nickel surface. This chemisorption contributes significantly to the dissociation reactions of ethylene molecules on the nickel (111) surface. Furthermore, it is found from additional MD simulations that carbon atoms diffuse more easily into the nickel subsurface than carbon dimers.

Full article

 
6.

Low reactivity of methane on copper surface during graphene synthesis via CVD process: Ab initio molecular dynamics simulation

Yasushi Shibuta, Rizal Arifin, Kohei Shimamura, Tomoya Oguri,Fuyuki Shimojo, Shu Yamaguchi
Chemical (2014)

Rizal Arifin (5 records)

Abstract
Reactivity of methane molecules on the copper surface at the initial stage of graphene growth is investigated by the ab initio molecular dynamics simulation. Although most of present graphene-growth models adopt the stance that methane molecules are dissociated on the copper surface, methane and fragment molecules are not dissociated on the copper (1 1 1) surface in our simulation, which is however reasonable from the thermodynamic viewpoint that the dehydrogenation of methane on the copper surface is highly endothermic. Instead, hydrocarbons such as ethane, ethylene and acetylene are formed from fragment molecules adsorbed on the copper surface

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7.

Ab initio molecular dynamics simulation of dissociation of methane on nickel(111) surface: Unravelling initial stage of graphene growth via a CVD technique

asushi Shibuta, Rizal Arifin, Kohei Shimamura, Tomoya Oguri,Fuyuki Shimojo, Shu Yamaguchi
Chemical Physics Letters, Elsevier (2013)

Rizal Arifin (5 records)

Abstract
Dissociation of methane molecules on the nickel(111) surface is investigated by the ab initio molecular dynamics simulation to discuss the initial stage of graphene growth via a chemical vapor deposition (CVD) technique. Methane molecules are dissociated into isolated carbon and hydrogen atoms via CH3 and CH fragments with chemisorbing the nickel surface. Dissociated carbon atoms are then buried into the subsurface space between first and second nickel layers via diffusion through hollow sites in the nickel layers. Our result supports carbon diffusion into the nickel subsurface, which may indicate precipitation growth of the graphene on the nickel surface.

Full article

 
8.

Growth of graphene on 6H-SiC by molecular dynamics simulation

Noel Jakse, Rizal Arifin, S. K. Lai
Condensed Matter Physics, Institute for Condensed Matter Physics (2011)

Rizal Arifin (5 records)

Abstract
Classical molecular-dynamics simulations were carried out to study epitaxial growth of graphene on 6H-SiC(0001) substrate. It was found that there exists a threshold annealing temperature above which we observe formation of graphitic structure on the substrate. To check the sensitivity of the simulation results, we tested two empirical potentials and evaluated their reliability by the calculated characteristics of graphene, its carbon-carbon bond-length, pair correlation function, and binding energy.

Full article

 
9.

Mathematical Model for Vaccinated Tuberculosis Disease with VEIT Model

Muhammad Rifki Taufik, Dwi Lestari, and Tri Wijayanti Septiarini
International Journal of Modeling and Optimization (2015)

Muhamad Rifki Taufik (3 records)

Abstract
Tuberculosis (TB) is one of the killing diseases in the developed countries. World Health Organization (WHO) has declared that Tuberculosis Disease can cause global warming. So, TB must be solved especially in prediction and vaccination. In this model, there are vaccinated populations, a vaccinated exposed population, and recovered individual can reinfection then be infected individual. There are four populations in this model, the population are Vaccinated, Exposed, Infected, and Treated. The type of TB Spreading in this model is exogenous reinfection. This paper explains about equilibrium point, and analyzing of stability endemic model

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10.

Application of Wavelet Fuzzy Model to Forecast The Exchange Rate IDR of USD

Tri Wijayanti Septiarini, Agus Maman Abadi, and Muhammad Rifki Taufik
International Journal of Modeling and Optimization (2016)

Muhamad Rifki Taufik (3 records)

Abstract
The exchange rate of IDR of USD can be the indicator to analyze Indonesian economy. The exchange rate which is an important factor has big effect in Indonesian economy overall. The government gives attention to the movement of exchange rate. So, it needs a mathematics model to forecast the exchange rate of IDR of USD. The model that used is fuzzy wavelet model. Fuzzy wavelet model is the combination of fuzzy Mamdani model and Discrete Wavelet Transforms (DWT). DWT is used to transform a function with the time domain into the frequency domain. This model is very effective to identify the case, have high accurate result, and have simple structure. In this paper, data of exchange rate that are used are weekly data taken from January 1, 2012 until November 9, 2014. The result of forecasting gives a level of accuracy of MAPE of 3.45% for training data and 1.74% for testing the data.

Full article

 

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