Hugo's Runaway Legs


Book Description

Hugo's legs have run away. They simply didn't want to stay at home where they just lay about. Hugo's legs just wanted out! Hugo Holt's legs have run away and jumped on the bus! Hugo can't do without them. How on earth will he catch his runaway legs?







Control and Nonlinear Dynamics on Energy Conversion Systems


Book Description

The ever-increasing need for higher efficiency, smaller size, and lower cost make the analysis, understanding, and design of energy conversion systems extremely important, interesting, and even imperative. One of the most neglected features in the study of such systems is the effect of the inherent nonlinearities on the stability of the system. Due to these nonlinearities, these devices may exhibit undesirable and complex dynamics, which are the focus of many researchers. Even though a lot of research has taken place in this area during the last 20 years, it is still an active research topic for mainstream power engineers. This research has demonstrated that these systems can become unstable with a direct result in increased losses, extra subharmonics, and even uncontrollability/unobservability. The detailed study of these systems can help in the design of smaller, lighter, and less expensive converters that are particularly important in emerging areas of research like electric vehicles, smart grids, renewable energy sources, and others. The aim of this Special Issue is to cover control and nonlinear aspects of instabilities in different energy conversion systems: theoretical, analysis modelling, and practical solutions for such emerging applications. In this Special Issue, we present novel research works in different areas of the control and nonlinear dynamics of energy conversion systems.




KS1 Maths Sats Practice Test Papers


Book Description

Level: KS1Subject: Maths Need more classroom practice? Letts will help your pupils do their best. * Get ready for SATs with 4 sets of tests* Prepare with realistic SATs-style questions* Photocopiable format These practice papers have been made ready for the 2019 tests, so you can be too! Includes 2 sets of English reading papers and 2 sets of grammar, punctuation and spelling test papers. They have everything you need to set and mark the tests, making it really simple to prepare for your SATs.




Life Before Birth


Book Description

The author believes the period of our lives that has the greatest impact on disease and personality formation is our gestation and birth. Recent studies provide evidence that fetal imprinting, an evolutionary strategy to prepare children to cope with life, establishes a permanent set-point in a child's physiology. Mothers highly anxious during pregnancy may give birth to babies prone to mental illness and disease in later life. Low oxygen at birth, drugs taken during pregnancy, and a lack of parental affection in the first years of life may have similar adverse affects. The author puts a case for a reorientation of our approaches to pregnancy and the use of drugs, and above all, to the modes of psychotherapy we implement to treat everything from phobias and compulsions to anxiety and depression.--From book jacket.




KS1 Maths SATs


Book Description




Scaling Up Compensation


Book Description




KS1 English SATs Revision Guide


Book Description

However you like to learn, Letts will help you do your best. * Listen up and learn more with free audio* Have a go with hands-on activities* Try questions like the ones at school* Pick up top tips along the way This guide has been made ready for the 2018 tests, so you can be too!




The Secret History of the Handbag


Book Description

From the earliest practical containers to the star handbags of today, this book is a comprehensive gallimaufry of the handbag through the ages.