Customer Reviews:
Excellent to gain an Appreciation of the Dynamic Nature of Chemical Processes and Develop Strategies to Operate and Control Them.......2006-07-30
This book successfully teaches how to analyze dynamic chemical processes and develop automatic control strategies to operate them safely and economically. Rather than simply present theory topics and develop analytical solutions, this textbook uses "interactive learning" through computer-based simulation exercises, employing for this the very popular "Matlab" engineering software package, and the "Simulink" block-diagram simulation environment. Introductions to both "Matlab" and "Simulink" are included in the book.
Each chapter of the book is followed by a series of "learning modules" that serve several purposes: some focus on software tools, while others focus on particular control problems.
An introduction to process control and instrumentation is presented in chapter 1. The development and use of models is very important in control systems engineering, and fundamentals models are developed in chapter 2, including the steady-state solution and linearization to form steady-state models. Chapter 3 focuses on the dynamic behavior of linear systems, starting with state space models and then covering transfer function-based models in detail. Chapter 4 covers the development of empirical models, including continuous and discrete transfer function models.
Chapter 5 provides a detailed introduction to feedback control, developing the basics of feedback systems, PID controllers, and methods of analyzing closed-loop stability. Chapter 6 presents methods for controller tuning. Frequency response analysis techniques, important for determining control system robustness, are presented in chapter 7.
Model-based control leads to improved control loop performance, and one of the clearest model-based techniques (Internal Model Control o IMC) is presented in chapter 8. The PID controller remains the most widely used controller in industry, so chapter 9 is very valuable since it shows how to convert internal model controllers to classical feedback PID controllers.
Chapter 10 develops two widely used control strategies: Cascade and feed-forward control. Chapter 11 presents auto-tuning and gain scheduling, two methods used to deal with poor performance due to changing operating conditions and poor tuned control loops. The phenomenon of reset windup and the development of anti-reset windup strategies are also presented in this chapter.
Chapter 12 presents the split-range, selective, and override control strategies, which are used when we need the control loop to be able of switching between manipulated inputs or select from several measured outputs. Chapter 13 deals with the effect of control loops interactions, while the design of multivariable controllers is developed in chapter 14.
Chapter 15 presents the challenging tasks encountered when developing Plant-wide optimization and control schemes. Chapter 16 presents the most widely applied advanced control strategy: Model Predictive Control (MPC).
Even though the book is designed for Chemical Engineering students, I truly believe that this text would also be suitable for industrial practitioners and students in mechanical, nuclear, industrial, and electrical engineering. I am an Industrial Practitioner of Process Measurement & Control who has been working in the Process Industries for more than 16 years as an Automation, Instrumentation, Process Safety and Process Control Engineer. My academic background is in electrical and electronics engineering (I am an Electronic Engineer), not in chemical engineering as might be the case of the usual reader of this book, but working in the Oil & Gas Industry all this time, I have been dealing with Chemical-Process Control issues in a day-to-day basics. I found this book to be a very useful reference and refresher to gain a better understanding of Modern Process Control Applications.
If you are a practitioner of Process Control you may want to consider also "Instrument Engineers' Handbook, Fourth Edition, Volume Two: Process Control and optimization" by Bela Liptak, for its practical and comprehensive coverage of Process Control.
Very nice detailed Book for Process Control.......2006-01-20
This book presents its idea very clearly and it's an easy read! I would say it's a must have for all process engineers!
Buy something else.......2005-10-25
This book is awful. It has terrible explanations and few examples. The math is very unclear.
If you are an instructor, please use a different book.
Book Description
The purpose of this book is to convey to undergraduate students an understanding of those areas of process control that all chemical engineers need to know. The presentation is concise, readable and restricted to only essential elements. The methods presented have been successfully applied in industry to solve real problems. Analysis of closedloop dynamics in the time, Laplace, frequency and sample-data domains are covered. Designing simple regulatory control systems for multivariable processes is discussed. The practical aspects of process control are presented sizing control valves, tuning controllers, developing control structures and considering interaction between plant design and control. Practical simple identification methods are covered.
Customer Reviews:
Este libro sirve.......2000-06-12
Tiene una buena cantidad de informacion
Average customer rating:
|
Biotic Homogenization
Manufacturer: Springer
ProductGroup: Book
Binding: Hardcover
 General
| Popular Economics
| Business & Investing
| Subjects
| Books
Genetics
| Evolution
| Science
| Subjects
| Books
General
| Evolution
| Science
| Subjects
| Books
General
| Science
| Subjects
| Books
General
| Nature & Ecology
| Science
| Subjects
| Books
General
| Ecology
| Biological Sciences
| Science
| Subjects
| Books
Conservation
| Environment
| Outdoors & Nature
| Subjects
| Books
Living on the Land
| Ecology
| Outdoors & Nature
| Subjects
| Books
| Architecture
| Hunting & Fishing
General
| Conservation
| Outdoors & Nature
| Subjects
| Books
Ecology
| Biological Sciences
| Professional Science
| Professional & Technical
| Subjects
| Books
General
| Evolution
| Professional Science
| Professional & Technical
| Subjects
| Books
Genetics
| Evolution
| Professional Science
| Professional & Technical
| Subjects
| Books
All Amazon Upgrade
| Amazon Upgrade
| Stores
| Books
Business & Investing
| Amazon Upgrade
| Stores
| Books
Outdoors & Nature
| Amazon Upgrade
| Stores
| Books
Professional & Technical
| Amazon Upgrade
| Stores
| Books
Science
| Amazon Upgrade
| Stores
| Books
All Titles
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Business & Investing
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Outdoors & Nature
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Professional
| Qualifying Textbooks - Fall 2007
| Stores
| Books
Science
| Qualifying Textbooks - Fall 2007
| Stores
| Books
ASIN: 0306465426 |
Book Description
Biological homogenization is the dominant process shaping the future global biosphere. As global transportation becomes faster and more frequent, it is inevitable that biotic intermixing will increase. Unique local biotas will become extinct only to be replaced by already widespread biotas that can tolerate human activities. This process is affecting all aspects of our world: language, economies, and ecosystems alike. The ultimate outcome is the loss of uniqueness and the growth of uniformity. In this way, fast food restaurants exist in Moscow and Java Sparrows breed on Hawaii.
Biological homogenization qualifies as a global environmental catastrophe. The Earth has never witnessed such a broad and complete reorganization of species distributions.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Quantitative studies of biotic homogenization can provide useful insights into conservation problems when used appropriately, but can be dangerously misleading when they are not. By separating the concept of biotic homogenization at the global scale from the study of biotic homogenization at spatially- and temporally-explicit scales, researchers can avoid many of the subtle pitfalls inherent in homogenization studies.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Biotic homogenization, driven by native species losses and invasive species gains was investigated for the flora of California. Data from a variety of available databases were aggregated at the county level to examine patterns in county population density and growth in relation to floristic change. Based on population, California was divided into three zones: high (n=9; 257-1320 people/km^2), medium (n=25; 28-177 people/km^2), and low (n=24; 1-24 people/km^2) density counties. Examining patterns of rare plant occurrences among these counties revealed that high and medium density counties contained, on average, as many or more rare and endemic species than low density counties. The largest pool of these species, 48 percent of the 962 highly threatened taxa in California, is restricted to high and medium density counties. Thus, urban and urbanizing counties play a strategic role in maintaining a part of California's flora that is both globally significant and threatened with extinction. Examining species losses and noxious weed additions across high density counties, reveals a consistent pattern of low similarity among species that have been extirpated from high density counties and a high similarity among noxious weeds that these counties now share. The consequence is that California's urban county floras appear to be homogenizing. Examining homogenization using the entire flora for urban counties demonstrates that less similar counties become more similar. The effect of loss of rare species could outweigh the gain in exotics, under an assumption of strong extinction. Finally, a strong negative relationship between population density and the proportion of county land in public ownership suggests that high and medium density counties are in a poor position to protect rare plant populations on a localized basis.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
In coastal California, the invasive Argentine ant (Linepithema humile) displaces nearly all above ground foraging native ant species. The loss of native ants following invasion by Argentine ants homogenizes these faunas; natural habitats invaded by L. humile have lower beta diversity compared to comparable uninvaded areas. Argentine ant abundance in the seasonally dry mediterranean environments of this region correlates strongly and positively with soil moisture. For this reason, the displacement of native ants across natural and artificial moisture gradients often resembles an edge effect, the magnitude of which is inversely proportional to the suitability of the physical environment from the perspective of L. humile. The direct effects of Argentine ant invasions in natural environments are therefore amplified by inputs of urban and agricultural run off. Indirect ecological effects of these invasions arise from the loss of large-bodied ants, arid adapted ants, and behavioral repertoires unique to particular native ant species. Further research is needed to quantify how these aspects of functional homogenization affect invaded communities. The close association between L. humile and moist soils suggests that, at least in arid regions, control strategies might be aimed at reducing urban run off in order to maintain functionally diverse communities of native ants.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Recent studies of geographic patterns of nonindigenous species richness suggest that a few key biogeographic and anthropogenic factors explain much of the variation in the richness of established species. It remains unknown, however, if the factors identified in these studies are taxon- and scale-specific or if general rules apply broadly across taxa and spatial scales. To address this issue, I used multiple regression analysis to identify factors that contribute significantly to variation in nonindigenous herpetofaunal richness at a relatively small spatial scale, the county level, in Florida, USA. Additionally, I used the Jaccard similarity index to determine if nonindigenous species affect the biotic similarity of the herpetofaunas of Floridian counties. In the regression analysis, county latitude strongly and negatively affected nonindigenous herpetofaunal richness, explaining approximately two-thirds of the variation in this variable. To a smaller degree, human population and university presence both related positively with nonindigenous herpetofaunal richness. Several other variables, including county land area, were not significantly related to nonindigenous herpetofaunal richness. The consistent importance of human population to nonindigenous species richness in this and past studies suggests that the influence of anthropogenic factors may be universal and are as or more important than the natural biogeographic factors that generally relate with native species richness. No evidence of overall homogenization was found based on Jaccard index values. However, a significant relationship between homogenization scores and distance between counties suggests that the effect of nonindigenous herpetofaunal richness on the similarity of county biotas is scale-dependent, such that adjacent counties tend to experience homogenization, while distant counties tend to experience differentiation as a result of the presence of nonindigenous herpetofauna. The results of this and similar studies may be useful in predicting the introduction and spread of nonindigenous species and in evaluating the effects of such introductions on native biodiversity.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Biotic homogenization is in many ways a function of spatial and temporal scale. Another aspect of this phenomenon that perhaps receives somewhat less attention is related to ''the scale of human experience'', particularly in the way that people view homogenization. Here, I examine the relationship between scale and efforts to reverse the loss of native species using two case studies in the Midwestern U.S. Both of these are focused on the restoration of prairie, one in a rapidly urbanizing area and one in a rural context. At a large reserve in a rural area, it is possible to restore prairie at a scale that is sufficient to accommodate populations of grassland obligate birds. This is an unrealistic goal, however, for small reserves in the midst of suburban development and rapidly escalating land prices. Small reserves in this context may be suitable for taxa with smaller habitat requirements, but also have a vital role in reversing biotic homogenization by enabling people to experience nature directly. Not only does this improve their quality of life, but may also foster support for efforts to maintain biodiversity in more remote locations. Thus, the goals of conservation and ecological restoration at various points on the land-use gradient are somewhat different but complementary and inter-related. Conservation scientists have an obvious role in the restoration and management of large reserves, but they also have an important part to play in restoring and maintaining elements of biodiversity in cities and suburbs.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in 2007. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
Changes in breeding bird diversity in the Netherlands between 1973-1977 and 1998-2000 were evaluated by testing three hypotheses related to the loss of biodiversity: (1) species diversity is declining, (2) biotic homogenization is increasing and (3) rare species are declining more severely than abundant species. Using data collected for two successive national breeding bird atlases, changes in diversity were assessed at different spatial scales (local, regional and national) and among species characteristic for different landscapes (farmland, woodland, heathland, wetland, coastal habitats and urban habitats). National species richness, diversity and equitability had increased between the two atlas periods, with more species increasing than decreasing in range and abundance. Most species in the large groups of woodland and wetland birds showed positive trends, whereas most in the smaller groups of heathland, reed-breeding and meadow birds showed negative trends. However, findings varied between regions and localities. Increases in species richness occurred mainly in regions in the low-lying, western part of the country which were previously relatively poor in species. By contrast, species richness decreased in some previously species-rich regions in the eastern part of the country. This has resulted in a homogenization of breeding bird communities between regions. We advocate the conservation and restoration of regional identity as a priority for landscape planning in the Netherlands. We did not find a clear relation between species abundance and trends, although both rare and very abundant species tended to decrease on average.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The process of urbanization has resulted in an expansion of alien plant species and declines of native species, in particular already rare species. These processes may cause a greater similarity between different urban regions, i.e. biotic homogenization. We explored the relationship between urban regions and homogenization for plant species in Germany using (i) all plant species, (ii) only native species, (iii) all alien species and only those introduced (iv) before or (v) after 1500, respectively. We used the database FLORKART for species distribution on a 6min latitudex10min longitude (ca. 130km^2) scale. We calculated mean similarities for the 60 ''most urbanized'' cells. We then resampled 60 randomly drawn ''less urbanized'' cells and 60 ''rural'' cells and compared these results to the ''most urbanized'' cells taking distance effects into account. Urbanization does not have an overall effect on homogenization of all species, but native species as well as pre-1500 alien plant assemblages show effects of homogenization while post-1500 alien plant assemblages show the opposite effect. On a regional scale, urbanization is not unequivocally related to homogenization. This might be different when extending the analysed range across several bioclimatic regions. Specific urban habitats, or what remains of them, require special protection and management if the trend towards homogenization is to be avoided.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
When measured by extent and intensity, urbanization is one of the most homogenizing of all major human activities. Cities homogenize the physical environment because they are built to meet the relatively narrow needs of just one species, our own. Also, cities are maintained for centuries in a disequilibrium state from the local natural environment by the importation of vast resources of energy and materials. Consequently, as cities expand across the planet, biological homogenization increases because the same ''urban-adaptable'' species become increasingly widespread and locally abundant in cities across the planet. As urbanization often produces a local gradient of disturbance, one can also observe a gradient of homogenization. Synanthropic species adapted to intensely modified built habitats at the urban core are ''global homogenizers'', found in cities worldwide. However, many suburban and urban fringe habitats are occupied by native species that become regionally widespread. These suburban adapters typically consist of early successional plants and ''edge'' animal species such as mesopredator mammals, and ground-foraging, omnivorous and frugivorous birds that can utilize gardens, forest fragments and many other habitats available in the suburbs. A basic conservation challenge is that urban biota is often quite diverse and very abundant. The intentional and unintentional importation of species adapted to urban habitats, combined with many food resources imported for human use, often produces local species diversity and abundance that is often equal to or greater than the surrounding landscape. With the important exception of low-income areas, urban human populations often inhabit richly cultivated suburban habitats with a relatively high local floral and faunal diversity and/or abundance without awareness of the global impoverishment caused by urbanization. Equally challenging is that, because so many urban species are immigrants adapting to city habitats, urbanites of all income levels become increasingly disconnected from local indigenous species and their natural ecosystems. Urban conservation should therefore focus on promoting preservation and restoration of local indigenous species.
Book Description
This digital document is a journal article from Biological Conservation, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
The southeastern United States is a center of aquatic species diversity and endemism in North America, but many taxa are imperiled or in decline. Proactive conservation strategies depend on developing sensitive measures of ecological response to environmental degradation early in the process. In the southern Appalachian highlands, much of the region has reforested following extensive logging and agriculture in the last century, but recently exurban development has surged. Patterns of aquatic ecosystem response to these changes were examined in 36 watersheds along a gradient of forest cover from moderately to heavily forested. A linear combination of watershed-scale measures reflecting the extent contemporary forest cover, the trajectory of forest cover change over time, and building and road density were stronger predictors of fish assemblage composition than topographic features. A measure of biotic homogenization relating the abundance of endemic highland fishes to abundance of broad-ranged fishes was sensitive to the gradient of anthropogenic disturbance. Across the watershed disturbance gradient, cosmopolitan species were clear winners as forms unique to the Appalachian highlands were lost. Similar measures of homogenization may be suitable elsewhere for tracking early warning signs of ecosystem stress, particularly in regions with significant endemism. Quantification of the homogenization process in response to urban development and other stressors is a promising avenue for proactive conservation, land use planning, and sustainable development efforts.
Average customer rating:
|
Lehrbuch Der Experimentalphysik: Festkorper (Lehrbuch Der Experimentalphysik)
Ludwig Bergmann ,
Stefan Von Blugel , and
Rainer Kassing
Manufacturer: Walter De Gruyter Inc
ProductGroup: Book
Binding: Hardcover
General
| Science
| Subjects
| Books
General
| Physics
| Science
| Subjects
| Books
General
| Physics
| Professional Science
| Professional & Technical
| Subjects
| Books
German
| Foreign Language Nonfiction
| Nonfiction
| Subjects
| Books
Nonfiction
| German
| Foreign Language Books
| Specialty Stores
| Books
Professional & Technical
| German
| Foreign Language Books
| Specialty Stores
| Books
All German Books
| German
| Foreign Language Books
| Specialty Stores
| Books
All Titles
| Qualifying Textbooks - Fall 2007
| Stores
| Books
ASIN: 3110174855 |
Product Description
Solid-State Physics provides extensive coverage like no other book of the whole spectrum of solid-state physics, from crystals and surfaces through semiconductors and magnetism and right up to superconductivity. Experts in the fields present the basic principles right through to applications incorporating the latest discoveries. Key Features - extensive discussion of all theoretical and application-oriented problems in solid-state physics - suitable as intensive preparation for exams - extensive literarture list in each chapter's appendix
Book Description
The King wants to give the Queen something special for her birthday. The Queen has everything, everything except a bed. The trouble is that no one in the Kingdom knows the answer to a very important question: How Big is a Bed? because beds at the time had not yet been invented. The Queen's birthday is only a few days away. How can they figure out what size the bed should be?
Customer Reviews:
Starting to understand the idea of measuring...........2007-05-15
This is a GREAT book - actually, after seeing & reading it; I am ordering MORE today....The 'idea of measurements & how it works' is explained in a cute & funny way...and is easy for little ones to grasp!
Great Book.......2007-05-15
This book was in great condition and is a great book to use in the classroom.
Measurement.......2007-01-11
This is a great book to use as an introduction to a measurement unit. Quality, print of book, and size could be better, but this is the way it was published.
an old favorite.......2006-11-03
I "met" this book many years ago when I was a student teacher. It has supplemented and enriched many lessons on measurement since that time. Recently, I purchased it in order to pass it on to 2 younger teachers, for their classrooms. Its charm and humor are still appealing.
How BIg is a Foot? .......2006-07-29
This is a terrific book for young and older children. It is a fun way to demonstrate why we need a universal form of measurement.
Average customer rating:
|
How Big Is A Foot
Myller
Manufacturer: Atheneum
ProductGroup: Book
Binding: Hardcover
ASIN: B000JC0VKI |
Book Description
This digital document is an article from Canadian Manager, published by Canadian Institute of Management on December 22, 2004. The length of the article is 1224 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
Citation Details
Title: How big is a square foot of space? The battle of effective vs. efficient workspace planning.(Cover Story)
Publication:
Canadian Manager (Magazine/Journal)
Date: December 22, 2004
Publisher: Canadian Institute of Management
Volume: 29
Issue: 4
Page: 12(3)
Article Type: Cover Story
Distributed by Thomson Gale
Books:
- Proton and Carbon NMR Spectra of Polymers
- Quantitative X-ray Spectrometry (Practical Spectroscopy)
- Reaction Kinetics and Reactor Design (Prentice-Hall international series in the physical and chemical engineering sciences)
- Recent sculpture, Sorel Etrog: [exhibition] January 6-February 1, 1969, Felix Landau Gallery
- Schaum's A-Z Chemistry
- Science Smart Junior: Discovering the Secrets of Science (Smart Juniors Grades 6 to 8)
- Selected Papers on the Teaching of Mathematics As a Service Subject (Cism International Centre for Mechanical Sciences Courses and Lectures)
- Solid-Phase Extraction: Principles and Practice
- Strategies for Organic Drug Synthesis and Design
- Student Study Guide to Accompany Chemistry
Books Index
Books Home
Recommended Books
- SIGN with your BABY Complete Learning Kit: US DVD Version, Book, Training Video
- History: Fiction or Science
- Apparel Manufacturing: Sewn Product Analysis
- Cold Comfort Farm
- Everyday Fashions of the Thirties As Pictured in Sears Catalogs
- Forest Trees
- Genius: A Photobiography of Albert Einstein
- Doodaaa : The Balletic Art of Gavin Twinge
- Cape Horn: The Logical Route ; 14,216 Miles Without Port of Call
- Rice and Cotton: South Vietnam and South Alabama
Practical Process Control for Engineers and Technicians (Practical Professional Books)
Chemical Process Safety: Fundamentals with Applications (2nd Edition)
Writing Style and Standards in Undergraduate Reports
Analysis, Synthesis, and Design of Chemical Processes, Second Edition
Separation Process Engineering (2nd Edition)
![Biotic homogenization and conservation prioritization [An article from: Biological Conservation]](http://ec1.images-amazon.com/images/I/21N7WP9WNTL.jpg)
