Zi Xi's Books

Combined Methods for Elliptic Equations with Singularities, Interfaces and Infinities

By: Zi Cai Li

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Combined Methods for Elliptic Equations with Singularities, Interfaces and Infinities

By: Zi Cai Li

In this book the author sets out to answer two important questions: 1. Which numerical methods may be combined together? 2. How can different numerical methods be matched together? In doing so the author presents a number of useful combinations, for instance, the combination of various FEMs, the combinations of FEM-FDM, REM-FEM, RGM-FDM, etc. The combined methods have many advantages over single methods: high accuracy of solutions, less CPU time, less computer storage, easy coupling with singularities as well as the complicated boundary conditions. Since coupling techniques are essential to combinations, various matching strategies among different methods are carefully discussed. The author provides the matching rules so that optimal convergence, even superconvergence, and optimal stability can be achieved, and also warns of the matching pitfalls to avoid. Audience: The book is intended for both mathematicians and engineers and may be used as text for advanced students.

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Page Count

488

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1461333385

ISBN 13

9781461333388

Evil King Chases after his Wife

Volume 2

By: Zi Su

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Evil King Chases after his Wife

Volume 2

By: Zi Su

She was the bastard who gave birth to a mute girl from General Mansion. She had no rights or rights without money or morals. She couldn't retaliate, she couldn't retort, she was despised by her family, and the marriage annulled by her husband's family. However, she wanted to see who would dare to bully her by even a little now! Just what happened to the Gui Wang who was known as the number one danger in Dongming? He actually threatened to marry her! She ran, he chased, she hid, he searched, and in the end, she even appeared before her disguised as a woman ... Seeing his lips, a certain woman couldn't help but retort, "You came to Sunflower Dew? We're still going through the main entrance?!

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Page Count

933

Publisher

Funstory

Published Date

ISBN 10

1648140149

ISBN 13

9781648140143

Princess Reins Devil King

Volume 2

By: Zi Yue

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Princess Reins Devil King

Volume 2

By: Zi Yue

The moment she opened her eyes, she saw a man crouching beside her ... Sisters are merciless, the matriarch is vicious, it doesn't matter.

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Page Count

1312

Publisher

Funstory

Published Date

ISBN 10

1649486634

ISBN 13

9781649486639

Deterministic and Stochastic Time-Delay Systems

By: El-Kebir Boukas,Zi-Kuan Liu

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Deterministic and Stochastic Time-Delay Systems

By: El-Kebir Boukas,Zi-Kuan Liu

Most practical processes such as chemical reactor, industrial furnace, heat exchanger, etc., are nonlinear stochastic systems, which makes their con trol in general a hard problem. Currently, there is no successful design method for this class of systems in the literature. One common alterna tive consists of linearizing the nonlinear dynamical stochastic system in the neighborhood of an operating point and then using the techniques for linear systems to design the controller. The resulting model is in general an approximation of the real behavior of a dynamical system. The inclusion of the uncertainties in the model is therefore necessary and will certainly improve the performance of the dynamical system we want to control. The control of uncertain systems has attracted a lot of researchers from the control community. This topic has in fact dominated the research effort of the control community during the last two decades, and many contributions have been reported in the literature. Some practical dynamical systems have time delay in their dynamics, which makes their control a complicated task even in the deterministic case. Recently, the class ofuncertain dynamical deterministic systems with time delay has attracted some researchers, and some interesting results have been reported in both deterministic and stochastic cases. But wecan't claim that the control problem ofthis class ofsystems is completely solved; more work must be done for this class of systems.

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Page Count

429

Publisher

Springer Science & Business Media

Published Date

ISBN 10

1461200776

ISBN 13

9781461200772

Beautiful Female Boss Loves Me

Volume 2

By: Zi QiZhongLai

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Beautiful Female Boss Loves Me

Volume 2

By: Zi QiZhongLai

After graduating from university, the protagonist Gu Feng didn't choose to join the job, but signed up to join the army. A year later, he had a relationship with Zhou Jing, the county's deputy director of water conservancy, and after working in the county committee's office, he was recruited by the new deputy secretary of the county committee, Shui Mu Lianlian. Soon after, he found out that the Deputy Secretary was actually the head of the army that year. Thus, Gu Feng was quickly trusted and acknowledged, and he had an ambiguous relationship with Shui Mulian many times. In the end, they had a relationship. At this time, in the struggle between the secretary and the county magistrate, Shui Mu Lian stood on the side of the county governor. At this time, in the struggle between the secretary and the county governor, Shui Mu Lian stood on the side of the county governor. After a year, he was recommended to the Party School of the county for three months, and returned to Luoshui Town as Mayor to be promoted as a proper student. Then, he steadily stuck to his task, step by step, closely following the steps of Shuixianlian, the Secretary of the Committee for Solidarity. Gu Feng had set up a company during the Mayor's time to popularize the people of the town, influence the whole county, and create brilliant political achievements, which were once again recognized by Shuixianlian's superiors. After graduating from university, the protagonist Gu Feng didn't choose to join the work, but signed up to join the army. A year later, he had a relationship with Zhou Jing, the county's deputy director of water conservancy, and after working in the county committee's office, he was recruited by the new deputy secretary of the county committee, Shui Mulian, who also served as a deputy in the county committee's office. Soon after, he found out that the Deputy Secretary was actually the head of the army that year. Thus, Gu Feng was quickly trusted and acknowledged, and he had an ambiguous relationship with Shui Mulian many times. In the end, they had a relationship. At this time, in the struggle between the secretary and the county magistrate, Shui Mu Lian stood on the side of the county governor. At this time, in the struggle between the secretary and the county governor, Shui Mu Lian stood on the side of the county governor. After a year, he was recommended to the Party School of the county for three months, and returned to Luoshui Town as Mayor to be promoted as a proper student. Then, he steadily stuck to his task, step by step, closely following the steps of Shuixianlian, the Secretary of the Committee for Solidarity. Gu Feng had set up a company during the Mayor's time to popularize the people of the town, influence the whole county, and create brilliant political achievements, which were once again recognized by Shuixianlian's superiors.

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Page Count

1655

Publisher

Funstory

Published Date

ISBN 10

163631385X

ISBN 13

9781636313856

Underworld Detective Lu Xiang

Volume 2

By: Zi Longqingchuan

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Underworld Detective Lu Xiang

Volume 2

By: Zi Longqingchuan

Lu Xiang, a freshman. Because of his negligence, his girlfriend was easily met with an accident. When he was regretting his decision, a mysterious trench coat wearing man appeared and told Lu Xiang that as long as he agreed to become a "Underworld Detective", Yi Lu could be "resurrected". Lu Xiang accepted. The man in the windbreaker placed a clock on Yi Lu's body, but the clock was turned upside down. As the clock turned, Yi Lu recovered. The man in the windbreaker promised that as long as he could keep track of the things that had been passed on in the underworld, he would be able to provide him with special energy. For the sake of his girlfriend, Lu Xiang had no choice but to agree to track down items from the Underworld. For the sake of "handling cases", he had been bestowed with a special sensing ability by the mysterious trench coat wearing man. Moreover, only after the case has been resolved can the professional "Soul Devouring Orb" be used to retrieve the items from the underworld.

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Page Count

891

Publisher

Funstory

Published Date

ISBN 10

1648577717

ISBN 13

9781648577710

Evil King Chases after his Wife

Volume 1

By: Zi Su

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Evil King Chases after his Wife

Volume 1

By: Zi Su

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Page Count

837

Publisher

Funstory

Published Date

ISBN 10

1647969778

ISBN 13

9781647969776

Evil King Chases after his Wife

Volume 3

By: Zi Su

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Evil King Chases after his Wife

Volume 3

By: Zi Su

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Solve jigsaw puzzle

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Page Count

1685

Publisher

Funstory

Published Date

ISBN 10

164814103X

ISBN 13

9781648141034

Evil King Chases after his Wife

Volume 2

By: Zi Su

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Evil King Chases after his Wife

Volume 2

By: Zi Su

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Solve jigsaw puzzle

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Page Count

933

Publisher

Funstory

Published Date

ISBN 10

1648140149

ISBN 13

9781648140143

Princess Reins Devil King

Volume 1

By: Zi Yue

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Princess Reins Devil King

Volume 1

By: Zi Yue

The moment she opened her eyes, she saw a man crouching beside her ... Sisters are merciless, the matriarch is vicious, it doesn't matter.

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Page Count

940

Publisher

Funstory

Published Date

ISBN 10

1649486251

ISBN 13

9781649486257

Sensorless Control of Permanent Magnet Synchronous Machine Drives

By: Zi Qiang Zhu,Xi Meng Wu

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Sensorless Control of Permanent Magnet Synchronous Machine Drives

By: Zi Qiang Zhu,Xi Meng Wu

Sensorless Control of Permanent Magnet Synchronous Machine Drives A comprehensive resource providing basic principles and state-of-the art developments in sensorless control technologies for permanent magnet synchronous machine drives Sensorless Control of Permanent Magnet Synchronous Machine Drives highlights the global research achievements over the last three decades and the sensorless techniques developed by the authors and their colleagues, and covers sensorless control techniques of permanent magnet machines, discussing issues and solutions. Many worked application examples are included to aid in practical understanding of concepts. Written by pioneering authors in the field, Sensorless Control of Permanent Magnet Synchronous Machine Drives covers topics such as: Permanent magnet brushless AC and DC drives Single three-phase, dual three-phase, and open winding machines Modern control theory based sensorless methods, covering model reference adaptive system, sliding mode observer, extended Kalman filter, and model predictive control Flux-linkage and back-EMF based methods for non-salient machines, and active flux-linkage and extended back-EMF methods for salient machines Pulsating and rotating high frequency sinusoidal and square wave signal injection methods with current or voltage response, at different reference frames, and selection of amplitude and frequency for injection signal Sensorless control techniques based on detecting third harmonic or zero-crossings of back-EMF waveforms Parasitic effects in fundamental and high frequency models, impacts on position estimation and compensation schemes, covering cross-coupling magnetic saturation, load effect, machine saliency and multiple saliencies Describing basic principles, examples, challenges, and practical solutions, Sensorless Control of Permanent Magnet Synchronous Machine Drives is a highly comprehensive resource on the subject for professionals working on electrical machines and drives, particularly permanent magnet machines, and researchers working on electric vehicles, wind power generators, household appliances, and industrial automation.

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Age

Page Count

501

Publisher

John Wiley & Sons

Published Date

ISBN 10

1394194366

ISBN 13

9781394194360

Book's by Zi Xi

Combined Methods for Elliptic Equations with Singularities, Interfaces and Infinities

Combined Methods for Elliptic Equations with Singularities, Interfaces and Infinities

Evil King Chases after his Wife

Evil King Chases after his Wife

Princess Reins Devil King

Princess Reins Devil King

Deterministic and Stochastic Time-Delay Systems

Deterministic and Stochastic Time-Delay Systems

Beautiful Female Boss Loves Me

Beautiful Female Boss Loves Me

Underworld Detective Lu Xiang

Underworld Detective Lu Xiang

Evil King Chases after his Wife

Evil King Chases after his Wife

Evil King Chases after his Wife

Evil King Chases after his Wife

Evil King Chases after his Wife

Evil King Chases after his Wife

Princess Reins Devil King

Princess Reins Devil King

Sensorless Control of Permanent Magnet Synchronous Machine Drives

Sensorless Control of Permanent Magnet Synchronous Machine Drives

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