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Ditemukan 2 dokumen yang sesuai dengan query
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Mohamad Rig Patra Putra
"Kebutuhan energi nasional meningkat seiring dengan laju ekonomi, saat ini energi yang paling banyak digunakan masyarakat untuk kebutuhan sehari hari adalah gas dalam bentuk LPG, batubara memiliki potensi untuk menjadi energi pengganti LPG. Indonesia merupakan negara yang memproduksi batubara terbesar ke-3 di dunia nantinya batubara diolah menjadi methanol dan Dimethyl Eter (DME) yang dapat digunakan sebagai pengganti LPG untuk mendekati pengguna elpiji, DME dan produk lainnya harus dapat ditransportasikan dengan murah. Pipanisasi merupakan solusi yang paling efektif untuk jarak kurang dari 1000 km, dibandingkan dengan metode transportasi yang lain (yaitu, kapal, kereta api, dan truk), pipanisasi adalah cara yang lebih dapat diandalkan dan ekonomis, pipa harus dirancang sedemikian rupa sehingga dapat memenuhi nilai ekonomis. Untuk mendapatkan desain yang tepat pipa disimulasikan dengan hysis sehingga didapatkan rancangan utilitas transportasi yang tepat guna dimana biaya total investasi yang dibutuhkan ekonomis dengan biaya operasi per tahun tidak lebih dari 5% dari CAPEX, dari Kajian didapat kan dimensi pipa 16” dan ketebalan Pipa sebesar 0,375 inch  dengan Right Of Way (ROW) sepanjang 168 km, untuk besaran nilai investasi (CAPEX) pembangunan Pipa Multiproduk DME, Methanol, dan MEG adalah $ 108.843.283 atau dalam IDR  1.578.227.604.582,09 dengan toll fee $ 19.64 /MT.

National energy needs increase along with the pace of the economy. Currently, the most widely used energy for daily needs is gas in the form of LPG, coal has the potential to be a substitute for LPG. Indonesia is a country that the 3rd largest produces coal in the world, later the coal will be processed into methanol and DME, which can be used as a substitute for LPG. To approach LPG users, DME and other products must be cheaply transported. Piping is the most effective solution for distances less than 1000 km, Compared to other transportation methods (i.e., ships, trains, and trucks), transmission pipelines are a more reliable and economical way, the objective of this study is to deliver DME, Methanol and MEG using Single line Pipeline.  Pipelines must be designed in such a way that they can meet economic value.  The methode to get the right design, first is simulated pipelines with pipesim, then selecting an appropriate utility and operation, where the total investment required is economical with an annual operating cost of not more than 5% of CAPEX, with an optimum NPV value and targeted IRR value.From the study, it was found that the dimensions of the pipe are 16” and the thickness of the pipe is 0.375 inch with a ROW of 168 km. The investment value (CAPEX) for the construction of the DME Methanol and MEG Multiproduct Pipe is $ 108.843.283 or in IDR  1.578.227.604.582,09 with toll fee $ 19.64 /MT.
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Depok: Fakultas Teknik Universitas Indonesia, 2022
T-pdf
UI - Tesis Membership  Universitas Indonesia Library
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"Magnetoencephalography (MEG) is an invaluable functional brain imaging technique that provides direct, real-time monitoring of neuronal activity necessary for gaining insight into dynamic cortical networks. This handbook covers the rich and transdisciplinary nature of the MEG field. The underlying motivation for this book was to make this diverse and extensive collection of chapters available to both newcomers and experienced researchers with the hope of stimulating growth in the MEG area.
The book is a comprehensive knowledge base of MEG basics along with the latest developments in methodological, empirical and clinical research, directed toward masters and doctoral students, as well as researchers already in the field. The topics range from neuromagnetic measurements, signal processing and source localization techniques to dynamic functional networks underlying perception and cognition in both health and disease. Topical reviews cover, among others: development on SQUID-based and novel sensors, multi-modal integration (low field MRI and MEG; EEG and fMRI), Bayesian approaches to multi-modal integration, direct neuronal imaging, novel noise reduction methods, source-space functional analysis, decoding of brain states, dynamic brain connectivity, sensory-motor integration, MEG studies on perception and cognition, thalamocortical oscillations, fetal and neonatal MEG, pediatric MEG studies, cognitive development, clinical applications of MEG in epilepsy, pre-surgical mapping, stroke, schizophrenia, stuttering, traumatic brain injury, post-traumatic stress disorder, depression, autism, aging and neurodegeneration, MEG applications in cognitive neuropharmacology, along with an overview of major open-source analysis tools.
The 2nd edition, which is now presented as a Springer Reference, has 9 sections compared to 5 in the first edition and includes a total of 61 chapters. It provides more in-depth tutorials on MEG as an enabling tool in neuroscience and on linear source estimation and spatial filtering approaches. A set of 11 new chapters and 20 updated chapters cover, among others, new topics such as simultaneous MEG and intracerebral EEG recordings, MEG studies on time processing and temporal cognition, open source MNE software, presurgical localization of language, emerging zero helium boil-off MEG technologies and provides updates on novel multi-modal fusion and related modeling approaches, open source analysis packages, neural decoding and MEG Brain Computer Interface, organizational cognitive neuroscience as well as developmental studies and clinical applications. In the last two years significant advances have been made in the field of novel sensor development, particularly for optically pumped magnetometers (OPMs) which are leading the way to a new generation of wearable MEG systems. Included in this new edition is a new chapter covering the topic of “on-scalp” MEG and an updated chapter on OPMs. "
Switzerland: Springer Cham, 2019
e20503346
eBooks  Universitas Indonesia Library