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A Cache Of Jewels And Other Collectible Nouns

RRP $17.99

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?Highly informative and lushly?illustrated. An unbeatable combination for pleasure and learning.? --Children?s Book Review Service ?The illustrations and the vocabulary will delight small eyes and ears.? --School Library Journal Q&A - Ruth Heller - A Paperstar Profile Ruth Heller - Profile How did you become interested in writing books for children? I loved reading to my own children, and when they started school, I became the P.T.A. library chairman. I was the one who got to pick and choose and spend a nice fat budget for the elementary school library. I feel as though I?ve been surrounded by children?s books for years. I suppose this and my strong art background are what prompted my trying to write. What is the biggest influence in your style of writing, and how has it changed since you first began? Hillaire Belloc, Gilbert and Sullivan, Edward Lear?I grew up reading all of them. I love their rhythm, and I loved reading Dr. Seuss to my children. No question, these were my influences. I think I?ve become wordier, not quite as minimal and succinct as I used to be. What made you decide to write a series on the parts of speech? Take a peek at the back end paper of the hardcover edition of A Cache of Jewels. You?ll see that I committed myself, in print, to writing a book for each part of speech. Here I am, ten years later, thankfully completing the very last book in this series. It will be published in 1998. Do you begin with the words or pictures when you are developing a book? How does the second part come together? The first step is to decide what I am going to say on each page. Then I can begin to visualize my illustrations. The words dictate what the illustration will be, but that still gives me many options. Sometimes the two come together easily, sometimes not. If not, I pursue new research material until something clicks. Did you learn anything new about the parts of speech while writing these books? I learned many things I had forgotten, and some new information and rules that I had never known. I also learned that the textbooks that I used for research were difficult to understand and somewhat boring, and that I am guilty of frequent misuse of the English language. How do you choose the images in your book? An art teacher once told me to ?fall in love? with whatever I was drawing. So I choose images that I love: candy, ice cream, butterflies, sea creatures, carousels, jewels, etc.


Minimax Under Transportation Constrains

RRP $160.00

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Transportation problems belong to the domains mathematical program- ming and operations research. Transportation models are widely applied in various fields. Numerous concrete problems (for example, assignment and distribution problems, maximum-flow problem, etc. ) are formulated as trans- portation problems. Some efficient methods have been developed for solving transportation problems of various types. This monograph is devoted to transportation problems with minimax cri- teria. The classical (linear) transportation problem was posed several decades ago. In this problem, supply and demand points are given, and it is required to minimize the transportation cost. This statement paved the way for numerous extensions and generalizations. In contrast to the original statement of the problem, we consider a min- imax rather than a minimum criterion. In particular, a matrix with the minimal largest element is sought in the class of nonnegative matrices with given sums of row and column elements. In this case, the idea behind the minimax criterion can be interpreted as follows. Suppose that the shipment time from a supply point to a demand point is proportional to the amount to be shipped. Then, the minimax is the minimal time required to transport the total amount. It is a common situation that the decision maker does not know the tariff coefficients. In other situations, they do not have any meaning at all, and neither do nonlinear tariff objective functions. In such cases, the minimax interpretation leads to an effective solution.



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Western Diesel Books

Railway British Western Trains
WarShip Electric Trains Bio Diesel Collectible Trains
Riding Train Trains History Train Type

Western Diesel

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