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"Electro processes are developed throughout the world for ambient temperature destruction of organic wastes. Several of these processes are based on mediated electrochemical oxidation..."

"Model is a representation of a system. Through model, it can be easier to forecast and control the changing of each element system. Electricity distribution is also a system. Losses are general problem that exist in a distribution network system. But with the right methods, specifically technical energy losses can be reduced in order to increase the efficiency. By making model of the distribution network, the value of technical energy losses in the whole network as well as in every line can be observed. Simulation can also be used to see all losses reduction alternatives. By comparing results from each alternatives, the best alternative, which gives best result can be decided and implemented."

" Jakarta International Container Terminal (JICT), which is the main international port of Indonesia, is overcrowded and is going to be expanded. Various expansion plans are considered, so the aim of the current paper is to simulate the plans using an agent-based modeling approach. The plans are treated as scenarios in the agent-based simulation model. Then, the throughputs from all scenarios are compared. The comparison shows that some of the plans can support the JICT vision. The results can be used as an input for the decision maker to either choose one of the plans or renegotiate the plans to achieve results that greatly support the JICT vision."

"Pemesinan mikro merupakan teknik fabrikasi lanjutan untuk produk berukuran mikro atau memiliki akurasi dalam level mikro. Material yang digunakan pun tidak jarang berupa material lanjutan yang memiliki kekuatan tinggi dengan massa yang ringan seperti Ti-6Al-4V. Sebagai akibatnya, material tersebut memiliki sifat keras, getas, dan sulit diproses melalui pemesinan. Penelitian terbarukan menunjukkan bahwa pemberian getaran mampu meningkatkan kualitas dan kemampuan pemesinan untuk material-material dengan sifat tersebut, salah satunya berupa pemberian getaran longitudinal dan torsional (longitudinal torsional vibration assisted micromilling/LT-VAM). Penelitian ini akan mengamati proses pemesinan mikro dengan sistem LTVAM secara simulasi 3D. Pemesinan akan dilakukan dengan kombinasi kondisi kecepatan pemesinan dan jenis horn untuk LTVAM. Melalui pengamatan dengan simulasi 3D, penelitian ini menunjukkan bahwa penggunaan sistem LTVAM dengan horn yang memiliki torsionality tinggi memiliki potensi mengurangi gaya pemesinan hingga 35%, temperatur pemesinan hingga 9%, dan kekasaran permukaan hingga 27%.

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Micromachining is an advanced microfabrication technique for micro-sized or micro-accuracy products. The materials used in micromachining are as advanced as it is, providing high-strength material while keeping its mass low such as those found in Ti-6Al-4V material. As a result, those mentioned advantages make them hard, brittle, and difficult to machine. Recent research articles had shown that vibration induction to the machining process can give a better machining quality to hard and brittle materials, one of which is longitudinal torsional vibration assisted micromilling (LT-VAM). This research is intended to simulate an LT-VAM machining process and how it compares to conventional micromilling. Several horn designs for LTVAM and variable speed will be simulated. Through the usage of 3D simulation techniques, the effects of LTVAM can then be measured. It has been shown that the application of the LTVAM system using a horn that has a high level of torsionality has the potential to reduce up to 9% of cutting temperature, 35% of cutting force, and 27% of surface roughness."

"ABSTRACTOne of the processes requiring HPC environments is Molecular Dynamics ( MD ) . In tropical countries, the MD process is very important in the preparation of virtual screening experiments for anti-malaria search. Previous works on the virtual screening project for anti-malaria search conducted by WISDOM project uses grid infrastructure with 1,700 CPUs of various infrastructure provided in 15 countries [13]. In silico anti malaria compounds searching from Indonesian medical plants using virtual screening methods are urgently required. This can reduce the cost and time required compared to the direct searching or examining each compound by in vitro and in vivo which will spend a lot of time and expense . However, the use of thousands of processors is difficult for the researchers with limited resources in developing countries such as Indonesia. Our of previous studies using MD with GROMACS shows the improvement of the simulation time using Cluster. But that is not the case for some of our previous works with AMBER on Cluster where we did not obtain significant speed up. However, our previous works running GROMACS on GPUs provided significant speed up about 12 times faster than that run on Cluster. In this study , we build a GPU -based computing environment and have some MD simulation with AMBER. We used several computing environments such as cluster with 16 cores , GPU Geforce GTX 465 , GTX 470 , GTX 560 , GTX 680 , and GTX 780 . In addition to PfENR ( Plasmodium falciparum Enoyl acyl Carrier Protein Reductase ) enzyme , as benchmark we also conducted MD experiments on Myoglobin protein , Dihydrofolate reductase (DHFR) protein, and Ras - Raf protein . All experimental results showed that the slowest MD processes occurred on Cluster, followed in increasing order by GTX 560, GTX 465, GTX 470, GTX 680 and GTX 780. While the GPU speed up relative to cluster is about 24 , 26 , 32 , 24 , 77 and 101, respectively. "

"ABSTRACTMolecular Dynamics (MD) is one of processes that requires High Performance Computingenvironments to complete its jobs. In the preparation of virtual screening experiments, MD is one ofthe important processes particularly for tropical countries in searching for anti-Malaria drugs. Thesearch for anti-Malaria has previously conducted, for example by WISDOM project utilizing 1,700CPUS. This computing infrastructure will be one of the limitation for country like Indonesia that alsoneeds in silico anti malaria compounds searching from the country medical plants. Thus findingsuitable and affordable computing environment is very important. Our previous works showed that ourdedicated Cluster computing power with 16 cores performance better than those using fewer cores,however the GPU GTX family computing power is much better.In this study, we investigate further our previous experiment in finding more suitable computingenvironment on much better hardware specification of non dedicated Cluster computing and GPUTesla. We used two computing environments, the first one is Barrine HPC Cluster of The University ofQueensland which has 384 compute nodes with 3144 computing cores. The second one is Delta FutureGrid GPU Cluster which has 16 computing nodes with 192 computing cores, each nodes equippedwith 2 NVIDIA Tesla C2070 GPU (448 cores). The results show that running the experiment on adedicated computing power is much better than that on non dedicated ones, and the GPU performanceis still much better than that of Cluster."

"ABSTRAKFokus utama tesis ini adalah saat ini masih belum adanya kajian mendalam mengenai analisis kelayakan keekonomian pada PV Off-Grid dengan menggunakan Metode Monte Carlo dan Homer Energy. Peneliti akan membahas pemodelan yang dibangun dengan kedua metode tersebut.Hasil penelitian ini adalah model yang dibangun ini diharapkan dapat memenuhi prinsip ?to produce electricity at the lowest possible cost? dengan mencari nilai COE (Cost of Energy) terendah dalam batasan parameternya seperti minimum NPV (Net Present Value), Cost to Benefit Ratio , DPI (Discounted Profitability Index) dan IRR (Internal Rate Return). Hasil pemodelan ini divalidasi dengan software Crystal Ball dan perhitungan manual.

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ABSTRACT

The main focus in this thesis is currently still lack of study related to economic feasibility analysis on PV Off-Grid using the Monte Carlo method and Homer Energy. Researcher built the modeling constructed by these two methods.

Results of this research is a construct model to meet the principle of "to produce electricity at the lowest possible cost" by looking for the lowest value of COE (Cost of Energy) within the range of parameters such as minimum NPV (Net Present Value), Cost to Benefit Ratio, DPI (Discounted Profitability Index) and IRR (Internal Rate of Return). This modeling result is validated with Crystal Ball software and manual calculations."