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Investigation of Form Effect on Ballast Mechanical Behavior Based on Discrete Element Modeling, Wang Bo


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При оформлении заказа до: 2025-07-23
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Автор: Wang Bo
Название:  Investigation of Form Effect on Ballast Mechanical Behavior Based on Discrete Element Modeling
ISBN: 9783734746666
Издательство: Books on Demand
Классификация:
ISBN-10: 3734746663
Обложка/Формат: Paperback
Страницы: 144
Вес: 0.18 кг.
Дата издания: 27.08.2019
Язык: English
Размер: 210 x 148 x 8
Читательская аудитория: General (us: trade)
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Поставляется из: США
Описание: As an essential component of the ballast track, the ballast layer provides functionali-ties such as drainage, load distribution, as well as strength and stability for the rail-way track. The mechanical behaviors of ballast track such as its permanent settle-ment, breakage, force propagation and void ratio are in a great extent influenced by the form distribution of ballast stones. Its reasonable design will greatly improve the mechanical behaviors, and thus prolong the maintenance cycle of ballast track, or reduce the number of ballast stones needed for construction. This dissertation focuses on proposing optimized ballast stones in the ballast aggre-gate in regard to their geometrical forms. As the first step, a ballast random form gen-erator, which is designed to generate ballast form databases with different form dis-tributions, is proposed. 15 databases are created for further usage. Afterwards, Dis-crete Element Method (DEM) based simulations are performed to investigate the mechanical behaviors of ballast aggregates. The simulation model is established based on a box test, whose result is presented firstly. Establishment and calibration process of the model are expatiated afterwards. A parameter study regarding to cru-cial modeling parameters is also performed. Using the validated parameters and the 15 generated form databases, DEM simulation models with different form distribu-tions of ballast stones in the ballast aggregate are proposed. Simulative methods to quantify the mechanical behaviors are elaborated. Based on the obtained results, the interrelation between mechanical behaviors of ballast aggregate and the form effect on mechanical behavior of the ballast aggregates are studied. The optimized ballast aggregate is proposed based on the findings stated above. The proposed optimized ballast aggregate is expected to be a reference for construc-tion of ballast track in real world. The modeling technic and the calibrated modeling parameters can be used fo


Perfect divination tarot book

Автор: Wang, Robert
Название: Perfect divination tarot book
ISBN: 157281909X ISBN-13(EAN): 9781572819092
Издательство: U.S. Games Systems
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Цена: 2143.00 р.
Наличие на складе: Невозможна поставка.

Описание: Through Astrology, Kabbalah, and Principles of Jungian InterpretationVolume III of the Jungian TrilogyVolume III applies astrology and Jungian principles to tarot interpretation. Paperback with black and white illustrations.

Jungian tarot and its archetypal imagery

Автор: Wang, Robert
Название: Jungian tarot and its archetypal imagery
ISBN: 1572819073 ISBN-13(EAN): 9781572819078
Издательство: U.S. Games Systems
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Цена: 2638.00 р.
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Описание: Volume II of the Jungian Tarot Trilogy.

Tight Gas Reservoirs

Автор: Holditch, Spivey, Wang
Название: Tight Gas Reservoirs
ISBN: 1613997744 ISBN-13(EAN): 9781613997741
Издательство: Society of Petroleum Engineers
Цена: 50160.00 р.
Наличие на складе: Нет в наличии.

Описание: Trace the history of technological discoveries allowing the industry to produce tight gas reservoirs.

The Prince and the Dressmaker

Автор: Wang Jen
Название: The Prince and the Dressmaker
ISBN: 162672363X ISBN-13(EAN): 9781626723634
Издательство: Macmillan USA/Holtzbrink(MPS)
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Цена: 1654.00 р.
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Описание:

A fairy tale for any age, Jen Wang's The Prince and the Dressmaker will steal your heart.

Paris, at the dawn of the modern age:

Prince Sebastian is looking for a bride--or rather, his parents are looking for one for him. Sebastian is too busy hiding his secret life from everyone. At night he puts on daring dresses and takes Paris by storm as the fabulous Lady Crystallia--the hottest fashion icon in the world capital of fashion!

Sebastian's secret weapon (and best friend) is the brilliant dressmaker Frances--one of only two people who know the truth: sometimes this boy wears dresses. But Frances dreams of greatness, and being someone's secret weapon means being a secret. Forever. How long can Frances defer her dreams to protect a friend? Jen Wang weaves an exuberantly romantic tale of identity, young love, art, and family.

This title has Common Core connections.

The struggle for Tibet /

Автор: Wang, Lixiong,
Название: The struggle for Tibet /
ISBN: 1844670430 ISBN-13(EAN): 9781844670437
Издательство: Marston Book Services
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Цена: 3958.00 р.
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Описание: Presents a debate on the occupation of Tibet and the movement for independence. This title offers a dialogue between a dissenting Chinese intellectual and Tibet`s outstanding national historian breaks taboos on both sides of the decades-long conflict. It considers some of the bitter paradoxes of Tibet`s history under Communist rule.

One Hour Per Day to a Powerful HSK Vocab 2

Автор: Dongqing Liu;Yuhong Ma;Xin Wang
Название: One Hour Per Day to a Powerful HSK Vocab 2
ISBN: 7802005957 ISBN-13(EAN): 9787802005952
Издательство: Sinolingua
Цена: 1301.00 р.
Наличие на складе: Нет в наличии.

Описание: This series of textbooks contains the core vocabulary of HSK for foreign students to study and apply in their daily activities?and to prepare for the HSK test. Through the use of these textbooks, students are able to master 3001 words within one year, and

One Hour Per Day to a Powerful HSK Vocab 3

Автор: Dongiqng Liu;Pei Shen;Chunying Wang
Название: One Hour Per Day to a Powerful HSK Vocab 3
ISBN: 7802005965 ISBN-13(EAN): 9787802005969
Издательство: Sinolingua
Цена: 1301.00 р.
Наличие на складе: Нет в наличии.

Описание: This series of textbooks contains the core vocabulary of HSK for foreign students to study and apply in their daily activities?and to prepare for the HSK test. Through the use of these textbooks, students are able to master 3002 words within one year, and????

Fiesta: The Branding and Identity for Festivals

Автор: Wang Shaoqiang
Название: Fiesta: The Branding and Identity for Festivals
ISBN: 8416851360 ISBN-13(EAN): 9788416851362
Издательство: Неизвестно
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Цена: от 6425.00 р.
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Описание: Fiesta: The Branding and Identity for Festivals is a compilation of remarkable branding designs and campaigns for a variety of renowned festivals from around the world.

Commentary on the Mirror for Compounding the Medicine: A Fourteenth-Century Work on Taoist Internal Alchemy

Автор: Jie Wang
Название: Commentary on the Mirror for Compounding the Medicine: A Fourteenth-Century Work on Taoist Internal Alchemy
ISBN: 0985547502 ISBN-13(EAN): 9780985547509
Издательство: Неизвестно
Цена: 3095.00 р.
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Описание:

The Ruyao jing (Mirror for Compounding the Medicine) is one of the most famous texts of Taoist Internal Alchemy, or Neidan. Written in the 10th century and attributed to Cui Xifan, it describes the foundations of Internal Alchemy in 20 short poems of four verses. Because of its symbolic and cryptic language, it has been subjected to different and sometimes conflicting interpretations.

This book contains the first complete translation of the Ruyao jing and of the commentary by Wang Jie, who lived in the 14th century. Wang Jie - also known as Wang Daoyuan and as Hunran zi (Master of the Inchoate) - was a second-generation disciple of the great Neidan master, Li Daochun. His commentary is characterized by a strong connection between the doctrinal and the practical aspects of Neidan. The translator's notes provide details on the main technical terms and on the relation of this work to other important texts of Internal Alchemy, in particular the Cantong qi (Seal of the Unity of the Three) and the Wuzhen pian (Awakening to Reality).

The book is vol. 1 in the "Masters" series of Golden Elixir Press.

Contents:

Introduction, p. vii
Translation, p. 1
Five Poems by Wang Jie, p. 65
Chinese Text, p. 69
Glossary of Chinese Characters, p. 83
Works Quoted, p. 89

Essential Mandarin Chinese Grammar: Write and Speak Chinese Like a Native! the Ultimate Guide to Everyday Chinese Usage

Автор: Ling Vivian, Wang Peng
Название: Essential Mandarin Chinese Grammar: Write and Speak Chinese Like a Native! the Ultimate Guide to Everyday Chinese Usage
ISBN: 0804851409 ISBN-13(EAN): 9780804851404
Издательство: Tuttle
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Цена: 2619.00 р.
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Описание: Essential Mandarin Chinese Grammar is a systematic overview of Mandarin grammar, oriented toward self-study, English-speaking students.

Through explanations of common mistakes learners make, useful example sentences and exercises with an answer key, this book provides a detailed introduction to the unique grammar structures of the Mandarin language.

Ideal for any student who is interested in taking their skills to the next level, this book makes the difficult task of perfecting grammar efficient, interesting and rewarding. Essential Mandarin Chinese Grammar is a perfect tool to help you form correct and natural-sounding sentences, and determine how to best use the grammar you need for reading or writing Mandarin.

Each example and exercise is written in both pinyin and Simplified Chinese Characters to accommodate learners with varying levels of character literacy, including those who have learned only to speak but not read.

Wild Kuan Yin Oracle (Pocket Edition): Soul Guidance from the Wild Divine for Free Spirits, Passionate Hearts & Dreamers of Impossible Dreams

Автор: Fairchild, Alana ; Yiguang, Wang
Название: Wild Kuan Yin Oracle (Pocket Edition): Soul Guidance from the Wild Divine for Free Spirits, Passionate Hearts & Dreamers of Impossible Dreams
ISBN: 0738752959 ISBN-13(EAN): 9780738752952
Издательство: Неизвестно
Цена: 2270.00 р.
Наличие на складе: Есть у поставщика Поставка под заказ.

The Jungian Tarot

Автор: Wang, Robert
Название: The Jungian Tarot
ISBN: 1572819065 ISBN-13(EAN): 9781572819061
Издательство: Неизвестно
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Цена: 3166.00 р.
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Описание: Dr. Robert Wang developed The Jungian Tarot as a "visual gateway into the complexities of Jungian psychology to aid in the process of active imagination proposed by Carl Jung. The 22 Major Arcana represent Jungian archetypes of the collective unconscious. The figures are visually presented with archways and circular mandalas, which aid in meditation. The court cards depict family roles: father, mother, daughter and son. The deck is a companion to the Jungian Tarot Trilogy by Robert Wang.


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