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ABSTRACTThis book provides a comprehensive introduction to the field of geochemistry. The book first lays out the 'geochemical toolbox': the basic principles and techniques of modern geochemistry, beginning with a review of thermodynamics and kinetics as they apply to the Earth and its environs. These basic concepts are then applied to understanding processes in aqueous systems and the behavior of trace elements in magmatic systems. Subsequent chapters introduce radiogenic and stable isotope geochemistry and illustrate their application to such diverse topics as determining geologic time, ancient climates, and the diets of prehistoric peoples. The focus then broadens to the formation of the solar system, the Earth, and the elements themselves. Then the composition of the Earth itself becomes the topic, examining the composition of the core, the mantle, and the crust and exploring how this structure originated. A final chapter covers organic chemistry, including the origin of fossil fuels and the carbon cycle's role in controlling Earth's climate, both in the geologic past and the rapidly changing present.Geochemistry is essential reading for all earth science students, as well as for researchers and applied scientists who require an introduction to the essential theory of geochemistry, and a survey of its applications in the earth and environmental sciences.Additional resources can be found at."

"This book introduces a stability and control methodology named AeroMech, capable of sizing the primary control effectors of fixed wing subsonic to hypersonic designs of conventional and unconventional configuration layout. Control power demands are harmonized with static-, dynamic-, and maneuver stability requirements, while taking the six-degree-of-freedom trim state into account. The stability and control analysis solves the static- and dynamic equations of motion combined with non-linear vortex lattice aerodynamics for analysis. The true complexity of addressing subsonic to hypersonic vehicle stability and control during the conceptual design phase is hidden in the objective to develop a generic (vehicle configuration independent) methodology concept. The inclusion of geometrically asymmetric aircraft layouts, in addition to the reasonably well-known symmetric aircraft types, contributes significantly to the overall technical complexity and level of abstraction. The first three chapters describe the preparatory work invested along with the research strategy devised, thereby placing strong emphasis on systematic and thorough knowledge utilization. The engineering-scientific method itself is derived throughout the second half of the book. This book offers a unique aerospace vehicle configuration independent (generic) methodology and mathematical algorithm. The approach satisfies the initial technical quest: How to develop a ‘configuration stability & control’ methodology module for an advanced multi-disciplinary aerospace vehicle design synthesis environment that permits consistent aerospace vehicle design evaluations?"

"ABSTRAKPenelitian ini mengenai proses formulasi kebijakan alternatif skema kontrak minyak dan gas bumi non konvensional dalam rangka menarik kontraktor minyak dan gas bumi non konvensional dan hambatan dalam penerapan kebijakan alternatif skema kontrak minyak dan gas bumi. Pendekatan penelitian yaitu kualitatif. Hasil penelitian menunjukan bahwa dalam proses formulasi kebijakan alternatif skema kontrak minyak dan gas bumi non konvensional belum sepenuhnya mengikuti model rasional Patton dan Savicky dan beberapa hal yang belum diatur membuat kebijakan alternatif skema kontrak dalam Permen ESDM Nomor 38 Tahun 2015 terhambat untuk diterapkan. Tanggapan pelaku industri yang sudah existing terhadap kebijakan alternatif skema kontrak tersebut sangat positif. Akan tetapi, pemerintah perlu menetapkan aturan pelaksana dari kebijakan tersebut.

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ABSTRACTThe issues are about formulation process of Contract Scheme Alternatives Policy for Unconventional Hydrocarbon for The Purpose to Improve Attractiveness Unconventional Hydrocarbon Contractor and Obstacles to Implement Contract Scheme Alternatives. The research approach is qualitative. The result showed that in formulation process of Contract Scheme Alternatives Policy is not entirely follows rational model of Patton and Savicky dan several things yet regulated makes contract scheme alternatives in Ministerial Regulation of Energy and Mineral Resources Number 38 Year 2015 difficult to implement. Response from industrial existing is positive. However, the government needs to regulate technical rules from policy."

"This book describes and assesses energy technologies, markets and future strategies, focusing on their capacity to produce, exchange, and use energy vectors. Special attention is given to the renewable energy resources available in different areas of the world and made exploitable by the integration of energy vectors in the global energy system. Clear definitions of energy vectors and energy systems are used as the basis for a complete explanation and assessment of up-to-date, available technologies for energy resources, transport and storage systems, conversion and use. The energy vectors scheme allows the potential realization of a worldwide sustainable energy system to fulfill global development expectations by minimizing both the impact on the environment, and the international political frictions for access to limited and concentrated resources."