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"[This book summarizes results of longstanding research and scientific contributions from many projects and relevant working groups. It collects and evaluates wind and wave climate projections under changing climate having design needs and marine safety in focus. Potential impact of projected climate change in met-ocean conditions on ships and offshore structures is discussed and illustrated by an example of the expected wave climate change on tanker design., This book summarizes results of longstanding research and scientific contributions from many projects and relevant working groups. It collects and evaluates wind and wave climate projections under changing climate having design needs and marine safety in focus. Potential impact of projected climate change in met-ocean conditions on ships and offshore structures is discussed and illustrated by an example of the expected wave climate change on tanker design.]"

"The main aim of this book is to evaluate the concept of stress and provide tools for physicians to identify patients who might benefit from stress management. This will incorporate a detailed description of the physiological and pathophysiological consequences of acute and chronic stress that might lead to cardiovascular disease. The book will aim to critically evaluate interventional research (behavioural and other therapies) and provide evidence based recommendations on how to manage stress in the cardiovascular patient. Our intentions are to define and highlight stress as an etiological factor for cardiovascular disease, and to describe an evidence based "tool box" that physicians may use to identify and manage patients in whom stress may be an important contributing factor for their disease and their risk of suffering cardiovascular complications."

"Untuk mengurangi ketergantungan yang sangat besar terhadap energi fosil-yang mencapai 95% (Pusdating, KESDM, 2012) perlu pemanfaatan energi yang berasal dari bahan bakar bukan fosil. Pengembangan energi alternatif juga mendukung realisasi tujuan pembangunan berkelanjutan dalam menyediakan energi baru dan terbarukan mengacu kepada PP No. 2 Tahun 2017 tentang Rencana Umum Energi Nasional/RUEN Indonesia memiliki potensi yang besar dalam pengembangan energi gelombang laut sekitar 17.989 MW dengan kapasitas terpasang sebesar 0,3 MW (0.002%) dan energi angin sekitar 60.647 MW (> 4 m/s) dengan kapasitas terpasang 3,1 MW (0,01%). Penggunaan energi terbarukan sebagai sumber listrik menjadi solusi untuk mengurangi penggunaan bahan bakar fosil. Namun energi baru terbarukan ini memiliki kekurangan dikarenakan bergantung pada kondisi alam, maka energi yang diberikan tidak dapat ditebak menyebabkan energi yang dikeluarkan tidak stabil dan memungkinkan tidak ada ketika diperlukan. Makalah ini bertujuan untuk mengetahui kemampuan gelombang laut menjadi solusi lain untuk PLTB dalam menghasilkan energi listrik, dikarenakan energi angin memiliki potensi ketiga terbesar setelah Surya dan Hydro tapi kapasitas terpasang dan pemanfaatanya masih sangat minim.

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To reduce the huge dependence on fossil energy-which reaches 95% (Pusdating, KESDM, 2012) it is necessary to utilize energy derived from non-fossil fuels. The development of alternative energy also supports the realization of the sustainable development goals in providing new and renewable energy referring to PP No. 2 of 2017 concerning the National Energy General Plan / RUEN Indonesia has great potential in the development of marine wave energy of around 17,989 MW with an installed capacity of 0.3 MW (0.002%) and wind energy of around 60,647 MW (> 4 m / s) with an installed capacity of 3.1 MW (0.01%). The use of renewable energy as a source of electricity is a solution to reduce the use of fossil fuels. However, this new renewable energy has its drawbacks because it depends on natural conditions, the energy provided cannot be guessed causing the energy released to be unstable and allows it to be absent when needed. This paper aims to determine the ability of ocean waves to be another solution for PLTB in producing electrical energy, because wind energy has the third largest potential after Solar and Hydro but its installed capacity and utilization are still very minimal."

"Energi listrik telah menjadi kebutuhan mendasar manusia di seluruh dunia termasuk bagi rakyat Indonesia. Pencarian energi baru makin mencuat karena didorong oleh situasi global yang mengindikasikan cadangan energi fosil khususnya minyak bumi karena sifatnya yang tak terbarukan. Sebagai alternatif dari keterbatasan energi fosil, banyak yang mencoba untuk menciptakan beberapa energi harvesting. Energi harvesting adalah proses dimana energi berasal dari sumber eksternal energi gelombang laut, energi panas, energi angin dsb dikonversikan menjadi energi listrik. Salah satu media konversi energi harvesting yang dikembangkan saat ini adalah material piezoelectric. Lalu muncul sebuah pemikiran untuk membuat sebuah generator yang memanfaatkan pergerakan dari gelombang laut. Generator ini menggunakan sistem Oscillation Water Column OWC yang di desain dengan sistem osilasi untuk mengakumulasi energi gelombang laut untuk memberikan gaya eksternal pada piezoelektrik untuk berkerja sebagai konverter. Pembangkit listrik tenaga gelombang laut ini diharapkan menjadi sebuah alternatif dari energi yang terbarukan. Hasil dari penelitian ini adalah purwarupa sistem PLTGL dengan tegangan maksimum 3.67 V , potensi energi gelombang laut maksimum 15.04 Joule, efisiensi daya piezoelektrik 9.3 sebesar pada rangkaian seri dengan ketinggian air rata ndash; rata 25 cm dan periode gelombang 10 detik.

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An electrical energy has been become basic human need in the world, especially in Indonesia. A renewable energy search is crucial because the fosil energy resource isn rsquo t a renewable property. As an alternative, several researches conduct an energy harvesting. An energy harvesting is a process where the energy comes from external source such as sea wave, heat energy, wind energy, etc. and that source will be converted into electrical energy.

One of the conversion energy harvesting media that has been developed at recent days is a piezoelectric media. Then, we developed a generator which use a sea wave movement. This generator uses an Oscillation Water Column OWC system which designed with an oscillation system to accumulate a seawave energy to give an external force for piezoelectric as a converter. A seawave based power plant is expected to become an alternative of renewable energy.

The result of this research is a prototype with seawave powerplant with maximum voltage of 3.67 V, ocean wave energy potensial of 15.04 Joule power efficiency 9.3 at serial circuit with average water height is 25 cm and wave period is 10 s."