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"ABSTRAK This journal reports on the development of scientific and engineering knowledge in the planning, management, and generation of electrical power"

"The fourth edition of this class-tested, multi-disciplinary introduction to solid state engineering adds dozens of revised and updated sections and problems, as well as three new chapters on solar energy harvesting, thermal and photothermal energy harvesting, and photo-thermovoltaics. Combining concepts from physics, chemistry, electrical engineering, materials science, and mechanical engineering, Professor Razeghi describes electron-electron and electron-phonon interactions, the Kane effective mass method, the carbon atom, thermal properties of crystals, the harmonic oscillator, the hydrogen atom, the quantum mechanical description of angular momentum, and the origin of spin in a chapter devoted to quantum mechanics. This textbook features an improved transport theory description that goes beyond Drude theory, discussing the Boltzmann approach. Introducing students to the rigorous quantum mechanical way of thinking about and formulating transport processes, this fourth edition presents the basic physics concepts and thorough treatment of semiconductor characterization technology, designed for solid state engineers."

"Indonesia memiliki potensi sumber daya energi baru dan terbarukan yang besar, salah satu diantaranya adalah sumber energi surya. Teknologi yang digunakan untuk mengonversi energi surya menjadi listrik adalah sel surya. Pemasangan pembangkit listrik tenaga surya pada atap gedung-gedung diharapkan dapat meningkatkan bauran energi EBT nasional dan dapat meningkatkan efisiensi energi listrik gedung tersebut. Penelitian ini bertujuan untuk mengetahui karakteristik energi surya pada Rest Area km 260B Banjaratma dan mengetahui pengaruh pemasangan pembangkit listrik tenaga surya atap terhadap efisiensi energi listrik. Penelitian ini dilakukan dengan cara membandingkan iradiasi matahari pengukuran langsung dengan iradiasi matahari proyeksi perangkat lunak berdasarkan data historis. Perhitungan proyeksi efisiensi energi listrik menggunakan data iradiasi matahari proyeksi perangkat lunak. Hasil pengujian menunjukkan bahwa karakteristik energi surya pada Rest Area km 260B Banjaratma dapat mencapai rata-rata iradiasi matahari sebesar 306 W/m2 pada hari dengan cuaca cerah berawan, namun hanya mencapai rata-rata iradiasi matahari sebesar 188 W/m2 pada hari yang terdapat cuaca hujan. Berdasarkan perhitungan, pemasangan pembangkit listrik tenaga surya dapat meningkatkan efisiensi energi listrik bangunan sebesar 1,2% pada tahun pertama operasi dan terus turun hingga 0,8% pada tahun kelima beroperasi. Dengan demikian, dapat disimpulkan bahwa pemasangan pembangkit listrik tenaga surya atap dapat meningkatkan efisiensi energi listrik bangunan.

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To meet the energy demand, Indonesia still relies on the use of fossil fuels. The utilization of new and renewable energy is still far from the target even though Indonesia has the potential sources of new and renewable energy, such as solar energy. The technology used to convert solar energy into electricity is a solar cell. The installation of rooftop solar power plant on the buildings hopefully will increase the renewable energy ratio toward national electricity source mix and increase the electrical energy efficiency of the buildings. The objectives of this research is to determine the characteristics of solar energy in the Rest Area km 260B Banjaratma and determine the effect of installing a rooftop solar power plant on building electrical energy efficiency. This research was conducted by comparing direct measurement solar irradiation with software projected solar irradiation based on historical data. Calculation of building electrical energy efficiency projections is using data from software projection solar irradiation. Test results show that the characteristics of solar energy in the Rest Area km 260B Banjaratma can reach an average solar irradiation of 306 W/m2 on day with clear and cloudy weather, but only reach an average solar irradiation of 188 W/m2 on day with rainy weather. Based on calculation, installing a rooftop solar power plant can increase building electrical energy efficiency by 1,2% in the first year of operation and decrease to 0,8% in the fifth year of operation. Thus, it can be concluded that installing rooftop solar power plants can increase building electrical energy efficiency."

"Pertumbuhan populasi dan pembangunan ekonomi yang cukup pesat beberapa tahun terakhir mengakibatkan pertumbuhan permintaan terhadap perjalanan pribadi maupun transportasi barang di Indonesia. Seiring dengan perbaikan kondisi ekonomi, masyarakat akan memiliki kemampuan lebih dalam membeli kendaraan tambahan dan cenderung untuk meningkatkan intensitas perjalanan mereka yang disebabkan oleh semakin tingginya daya beli dan permintaan terhadap hiburan serta aktivitas sosial.Fenomena ini menjadi katalisator bagi peningkatan jumlah konsumsi energi baik dari perjalanan pribadi maupun transportasi barang. Namun, ketersediaan sumber daya energi yang semakin menipis membuat pemerintah harus melakukan impor untuk menjamin keamanan pasokan energi. Proyeksi permintaan energi merupakan suatu hal krusial bagi pemerintah dalam melihat tren masa depan dan mengembangkan rencana strategis serta mengalokasikan sumber daya yang ada untuk berbagai sektor aktivitas dalam rangka mengakomodasi permintaan energi di masa mendatang.Sebuah model sistem dinamis akan dikembangkan sebagai alat bantu dalam memberikan gambaran proyeksi permintaan energi di sektor transportasi darat dengan variabel output berupa jumlah permintaan energi dan bauran energi primer serta beberapa variabel input seperti Pendapatan Domestik Bruto (PDB), populasi warga, populasi kendaraan, dan jarak perjalanan penumpang (passenger-km).Dengan adanya penelitian ini, diharapkan pemerintah akan mendapatkan kajian akademis prediksi permintaan energi di masa mendatang dengan lebih akurat, sehingga dapat membantu dalam merencanakan pengelolaan energi untuk sektor transportasi darat secara menyeluruh dan terintegrasi.

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Population growth and economic development in the past few years have caused a growing demand for personal travel and freight transport in Indonesia. In good economic conditions, people are able to afford a vehicle or and additional vehicle to increase their travel intensity due to higher purchasing power and growing demand for entertainment and social activities.

This phenomenon has become a catalyst for the increment in the amount of energy consumption both from personal travel and freight transport. However, the availability of energy resources are depleting which made the government must import a massive amount of oil to ensure national energy security. Projection of energy demand is perhaps the crucial step for the government to predict future’s trend of consumption and to develop an appropriate strategic plan as well as to allocate proper amounts of resources available for various activities in order to accommodate future energy demand.

A system dynamic model will be developed as a decision-making tool to provide an overview of energy demand projections in road transport sector with future energy demand and future energy mix as the output variables and Gross Domestic Product (GDP), number of population, number of vehicle registered, and travel demand (passenger-km) as model inputs.

It is expected that this research will give an academic view for the government on the prediction of future energy demand more accurately, so it could help the government in planning national energy management for land transportation as well as support a sustainable transportation development."

"The volumes includes selected and reviewed papers from the 2nd ETA Conference on Energy and Thermal Management, Air Conditioning and Waste Heat Recovery in Berlin, November 22-23, 2018. Experts from university, public authorities and industry discuss the latest technological developments and applications for energy efficiency. Main focus is on automotive industry, rail and aerospace."

"This book focuses on the modeling, optimization, and applications of 5G green mobile communication networks, aimed at improving energy efficiency and spectrum utilization in 5G systems. It offers a balance between theoretical analysis and engineering practice, providing in-depth studies of a number of major topics, such as energy consumption models, optimization, system design, implementation, and performance evaluation. It also discusses four aspects of green communication in detail: cellular networks, resource management, wireless transmissions and multi-media communications. Further, this unique book comprehensively and systematically discusses green optimization in wireless mobile communications. As such it is a valuable resource for researchers, engineers, and graduate students in various fields, including telecommunications engineering, electrical and electronic engineering, and computer engineering, particularly those interested in green communications."

"This book focuses on the two-phase flow problems relevant in the automotive and power generation sectors. It includes fundamental studies on liquid-gas two-phase interactions, nucleate and film boiling, condensation, cavitation, suspension flows as well as the latest developments in the field of two-phase problems pertaining to power generation systems. It also discusses the latest analytical, numerical and experimental techniques for investigating the role of two-phase flows in performance analysis of devices like combustion engines, gas turbines, nuclear reactors and fuel cells. The wide scope of applications of this topic makes this book of interest to researchers and professionals alike."