|
Showing 1 - 6 of
6 matches in All Departments
This book describes load modeling approaches for complex work
pieces and batch forgings, and demonstrates analytical modeling and
data-driven modeling approaches for known and unknown complex
forging processes. It overcomes the current shortcomings of
modeling, analysis and control approaches, presenting contributions
in three major areas: In the first, several novel modeling
approaches are proposed: a process/shape-decomposition modeling
method to help estimate the deformation force; an online
probabilistic learning machine for the modeling of batch forging
processes; and several data-driven identification and modeling
approaches for unknown forging processes under different work
conditions. The second area develops model-based dynamic analysis
methods to derive the conditions of stability and creep. Lastly,
several novel intelligent control methods are proposed for complex
forging processes. One of the most serious problems in forging
forming involves the inaccurate forging conditions, velocity and
position offered by the hydraulic actuator due to the complexity of
both the deformation process of the metal work piece and the motion
process of the hydraulic actuator. The book summarizes the current
weaknesses of modeling, analysis and control approaches. are
summarized as follows: a) With the current modeling approaches it
is difficult to model complex forging processes with unknown
parameters, as they only model the dynamics in local working areas
but do not effectively model unknown nonlinear systems across
multiple working areas; further, they do not take the batch forging
process into account, let alone its distribution modeling. b) All
previous dynamic analysis studies simplify the forging system to
having a single-frequency pressure fluctuation and neglect the
influences of non-linear load force. Further, they fail to take the
flow equation in both valves and cylinders into account. c)
Conventional control approaches only consider the linear
deformation force and pay no attention to sudden changes and the
motion synchronization for the multi-cylinder system, making them
less effective for complex, nonlinear time-varying forging
processes subject to sudden changes.
This book describes load modeling approaches for complex work
pieces and batch forgings, and demonstrates analytical modeling and
data-driven modeling approaches for known and unknown complex
forging processes. It overcomes the current shortcomings of
modeling, analysis and control approaches, presenting contributions
in three major areas: In the first, several novel modeling
approaches are proposed: a process/shape-decomposition modeling
method to help estimate the deformation force; an online
probabilistic learning machine for the modeling of batch forging
processes; and several data-driven identification and modeling
approaches for unknown forging processes under different work
conditions. The second area develops model-based dynamic analysis
methods to derive the conditions of stability and creep. Lastly,
several novel intelligent control methods are proposed for complex
forging processes. One of the most serious problems in forging
forming involves the inaccurate forging conditions, velocity and
position offered by the hydraulic actuator due to the complexity of
both the deformation process of the metal work piece and the motion
process of the hydraulic actuator. The book summarizes the current
weaknesses of modeling, analysis and control approaches. are
summarized as follows: a) With the current modeling approaches it
is difficult to model complex forging processes with unknown
parameters, as they only model the dynamics in local working areas
but do not effectively model unknown nonlinear systems across
multiple working areas; further, they do not take the batch forging
process into account, let alone its distribution modeling. b) All
previous dynamic analysis studies simplify the forging system to
having a single-frequency pressure fluctuation and neglect the
influences of non-linear load force. Further, they fail to take the
flow equation in both valves and cylinders into account. c)
Conventional control approaches only consider the linear
deformation force and pay no attention to sudden changes and the
motion synchronization for the multi-cylinder system, making them
less effective for complex, nonlinear time-varying forging
processes subject to sudden changes.
Written by distinguished Chinese academics, this book provides a
unique and rare insight into the development of the modern Chinese
economy. The authors identify three major factors in the growth of
the Chinese economy: economic decentralization and political
centralization; the urban-rural divide; and relational society.
These are explored in depth via analyses of factors including urban
and rural economic development and their political and social
foundations, industrial agglomeration, transitions of public
services and governmental responsibilities towards them and
developmental imbalances and mechanisms. It is illustrated that
whilst contemporary China has obviously made great economic
strides, a wide variety of problems are accumulating over time. The
book concludes that following three decades of high economic
growth, China now faces great challenges for sustainable growth,
and the institutions of China's economy have reached a critical
point. Strategies for dealing with these challenges and
requirements for the successful future development of China are
thus prescribed. This fascinating book will provide a stimulating
read for scholars, students and researchers in the fields of Asian
studies, economics and development. Contents: 1. Introduction: The
Reform and Opening-up of a Large, Developing Country 2. Political
and Social Foundations of Economic Development 3. Urban and Rural
Economic Development During the Process of Urbanization and
Industrialization 4. Industrial Agglomeration in the Process of
Globalization and Regional Economic Development 5. Transitions of
Public Services and Government Responsibilities During the
Marketization Process 6. Developmental Imbalances and Mechanisms
for Improving the Market System 7. Appropriate Institutions and
Sustainable Growth: China's Development and its Worldwide
Significance References Index
|
Hard Melody (Hardcover)
Lu Ming; Edited by Mike Kennedy; Artworks by Lu Ming
|
R582
R481
Discovery Miles 4 810
Save R101 (17%)
|
Ships in 9 - 15 working days
|
Three thirty-year-old friends reunite in Beijing after nearly 10
years apart. They used to be free-wheeling rock-and-rollers without
a care in the world, but now, after tasting their own variation of
freedom in new China, they are tormented by how unforgiving and
unglamorous life had become. Nothing at all like the fame and
fortune they dreamed about as kids. After comparing stories of
disappointment over beers, they are reminded of how much youth
they've lost when a group of kids torments them into a brawl.
Re-energized by the encounter, they decide to reform the band and
this time take over the world. But reality gets in the way when one
of them finds out his family is going to be evicted along with
their whole neighborhood due to shady government zoning. Putting
their dreams aside to fight for their rightful property, they find
themselves in a violent uprising pitting neighborhood residents
against police and bulldozers... And when the heat gets turned up
high enough, fuses are bound to be lit... A story of youthful
dreams clashing with the reality of adulthood, set against the
backdrop of modern China.
A collection of works by celebrated Chinese artist Lu Ming, who is
widely recognized as the leading representative of Chinese realist
comics. Few artists are as complete as Lu Ming. Known for his
hyper-realistic comics and his universe inspired by both medieval
(Chinese and European) and music (he is also a professional
guitarist and drummer), this collection is a look at his paintings,
advertising illustrations (for which he won a Palme d'or at the
Cannes Lion festival in 2008), storyboard and conceptual design
work for feature films (including the legendary Tsui Hark's Flying
Sabers), and his sculptures (including the monumental "Desert
Grade" presented at the Burning Man festival in Nevada)."
|
You may like...
Loot
Nadine Gordimer
Paperback
(2)
R398
R330
Discovery Miles 3 300
|