Stefan Streif's Books

Hierarchical Power Systems: Optimal Operation Using Grid Flexibilities

By: Tim Aschenbruck,Jörg Dickert,Willem Esterhuizen,Bartosz Filipecki,Sara Grundel,Christoph Helmberg,Tobias K. S. Ritschel,Philipp Sauerteig,Stefan Streif,Andreas Wasserrab,Karl Worthmann

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Hierarchical Power Systems: Optimal Operation Using Grid Flexibilities

By: Tim Aschenbruck,Jörg Dickert,Willem Esterhuizen,Bartosz Filipecki,Sara Grundel,Christoph Helmberg,Tobias K. S. Ritschel,Philipp Sauerteig,Stefan Streif,Andreas Wasserrab,Karl Worthmann

This book explains the power grid as a hierarchy made up of the transmission, distribution, and microgrid levels. Interfaces among these levels are explored to show how flexibility in power demand associated with residential batteries can be communicated through the entire grid to facilitate optimal power flow computations within the transmission grid. To realize this approach, the authors combine semi-definite optimal power flow with model-order reduction at the distribution level and with a new heuristic algorithm for stable power flow at the transmission level. To demonstrate its use, a numerical case study based on modified IEEE 9-bus and 33-bus systems for the transmission and distribution grid, respectively, is included. This book shows how exploiting the flexibility on the residential level improves the performance of the power flow with the transmission grid.

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Publisher

Springer Nature

Published Date

ISBN 10

3031256999

ISBN 13

9783031256998

Wild Card

Mastering the Mental Game in Tennis, in Sport, and in Life

By: Laura Siegemund,Stefan Brunner

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Wild Card

Mastering the Mental Game in Tennis, in Sport, and in Life

By: Laura Siegemund,Stefan Brunner

Pressure, stress, and the threat of losing control all have the power to inhibit a tennis player's professional, athletic, and sometimes even everyday performance. How can the athlete manage these challenges? Wild Card is the must-have guide for navigating these difficult moments. Though targeted specifically at the elite tennis player, it appeals to any athlete who has the ambition to perform at their best, who faces extreme challenges and wants to master them. An athlete can even go so far as to apply these mental strategies to life's daily challenges. Written from the perspective of world-class tennis player, Laura Siegemund, this guide equips the athlete with the tools to develop concentration, focus, resilience, the ability to handle mistakes, and self-regulation—all that the high-performance athlete needs to master the mental game. Guiding the reader through the highs and lows of a match, even an entire tournament, Laura Siegemund provides insight into extreme mental game situations and their complexity and resolves these situations together with mental coach and sports scientist, Prof. Dr. Stefan Brunner. With this book, the athlete will feel empowered to win match point after match point—in tennis, in sports, and in life!

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Page Count

271

Publisher

Meyer & Meyer Sport

Published Date

ISBN 10

178255923X

ISBN 13

9781782559238

Restoration of Ecosystems – Bridging Nature and Humans

A Transdisciplinary Approach

By: Stefan Zerbe

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Restoration of Ecosystems – Bridging Nature and Humans

A Transdisciplinary Approach

By: Stefan Zerbe

In this interdisciplinary textbook, which bridges the gap between the natural and social sciences both, the scientific principles of restoration ecology and practical aspects of ecosystem restoration are comprehensively presented. The diversity of land-use types with a focus on Central Europe is highlighted and case studies of practical restoration projects are presented. The textbook offers students who deal with the environment as well as scientists and practitioners a profound and up-to-date, but also critical overview of the state of knowledge. This book opens up the broad spectrum of degraded ecosystems of Central European natural and cultural landscapes. In further chapters, marine ecosystems and their restoration as well as development potentials and the limits of restoration are discussed in more detail. The ecological fundamentals are expanded through an interdisciplinary perspective taking into account environmental ethics, sociology, anthropology, and economics. In addition to an up-to-date overview of the various areas and fields of activity in restoration ecology and ecosystem restoration, the textbook provides a valuable basis for studies, science, and practice. The students also receive assistance in searching for literature and critical fact analysis, and the lecturers on teaching formats and interdisciplinary approaches to discussion in restoration ecology.

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Page Count

727

Publisher

Springer Nature

Published Date

ISBN 10

3662656582

ISBN 13

9783662656587

Anaram - Boundless Light

By: Stefan Brux

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Anaram - Boundless Light

By: Stefan Brux

Anaram is an Afghan girl whose name means Boundless Light. One morning, in the turmoil of the Afghanistan conflict in the 2000s, she is seriously injured and receives first aid from German Bundeswehr soldiers. Anaram's father is fighting on the Taliban side and arrives at the scene together with two other Taliban fighters. By chance, the situation is captured by a war reporter. The resulting photo goes on to win the prize for best war photograph of the year. In a series of fictional short stories, the author sketches the personal and emotional backgrounds of the protagonists. The lamenting mother who fears losing her last child to the war. German soldiers who have left their civilian lives for an overseas deployment where they are involved in violent skirmishes and suffer physical and psychological injuries. Taliban and the inhabitants of a valley who are trying to survive somewhere in northern Afghanistan. The book was published in German in 2022 and translated into English by Katie Truslove.

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