Gems and Gemmology

Gems Gemol 24:3–15 Fritsch E, Rossman GR (1988b) An update on color in gems. Part 3: colors caused by band gaps and physical phenomena. Gems Gemol 24:81–102 ...


Author: Stefanos Karampelas

Publisher: Springer Nature

ISBN: 9783030354497

Category: Social Science

Page: 112

View: 843

This book provides a lucid introduction to the basics of gemmology. It familiarizes archaeologists, art historians and conservators with the science of gemstones and allows them to understand the basic concepts of their provenance, typology and treatments. Which are the main types of gems? What treatments can be applied? How does one analyse gems? How can gems contribute to archaeometrical research? This volume is written by four experts in the fields of gemmology and archaeometry and addresses both students who need an introduction to this field and professionals who want to refresh their knowledge of the topic. This work is part of a series of introductory texts that deal with a broad range of materials-related topics in archaeometry.

Holistic Game Development with Unity 3e

For example, matching marbles of the same color is not a game. ... in a grid to make horizontal or vertical sets of three or more of the same colored gem.


Author: Penny de Byl

Publisher: CRC Press

ISBN: 9781351053679

Category: Games & Activities

Page: 476

View: 916

Master game design and digital art principles simultaneously with this all-in-one guide to creating games in the cutting-edge game engine Unity. Reworked for C# and Unity 2018 & 2019, and bursting with images and tutorials, Penny de Byl’s Holistic Game Development with Unity will help the reader gain the multidisciplinary skills needed to succeed in the independent game industry. Holistic Game Development with Unity includes new coverage on Augmented Reality, Networking, and Virtual Reality such as the Oculus Rift. Supplementary material, including instructional videos, discussion forums and art assets are provided in the companion website located at Learn to combine the beauty of art and the functionality of programming in de Byl’s third edition for Unity game development. Key features: Art and programming in Unity, the only one-stop shop for individual developers and small teams looking to tackle both tasks. Proven step-by-step tutorials show you how to design and structure an entire game in Unity with art assets. Revised to cover the Unity game engine versions 2018 and 2019. New coverage of Nav Meshes, Augmented Reality, Mobile Builds and Mecanim. An introduction to essential two- and three-dimensional mathematical and physics concepts. A portfolio of royalty free reusable game mechanics. Revamped and expanded accompanying website,, features project source code, instructional videos, art assets, author blog, and discussion forums. Additional challenge questions and lesson plans are available online for an enhanced learning experience.

Advanced Engineering Technology III

[3] E. Fritsch, G. R. Rossman, An update on the color in gems. Part 2: colors involving multiple atoms and color centers, Gems. Gemol. 24 (1988) 3-15.


Author: Jong Wan Hu

Publisher: Trans Tech Publications Ltd

ISBN: 9783035730814

Category: Technology & Engineering

Page: 754

View: 888

This volume of the journal published by results of the 3rd International Conference on Advanced Engineering and Technology (ICAET 2016, Incheon, South Korea, December 16-18, 2016) and the topics of collection are related with results of researches and engineering solutions in the different branches of modern engineering sciences - from materials engineering to robotics, environmental and industrial engineering. We hope this collection will be useful for many scientists, engineers and students in future investigations in area of modern manufacture.

Game Engine Gems Volume One

(See also Color Plates.) (a) Grasshopper source image using 136,945 colors. (b) Photoshop, 256 colors. (c) Photoshop, 16 colors. ... [3] E. Garcia.


Author: Eric Lengyel

Publisher: Jones & Bartlett Publishers

ISBN: 9781449657932

Category: Computers

Page: 362

View: 432

Game Engine Gems brings together in a single volume dozens of new articles from leading professionals in the game development industry. Each "gem" presents a previously unpublished technique related to game engines and real-time virtual simulations. Specific topics include rendering techniques, shaders, scene organization, visibility determination, collision detection, audio, user interface, input devices, memory management, artificial intelligence, resource organization, and cross-platform considerations. A CD-ROM containing all the source codes and demos accompanies the book.

Graphics Gems II

six output levels per primary and uses 216 entries in the color table. ... 3.E/16 5.E/16 1.E/16 THIS 7.E/16 DONE PIXEL Figure 2. Floyd-Steinberg 75 || 3 ...


Author: James Arvo

Publisher: Elsevier

ISBN: 9780080507545

Category: Computers

Page: 672

View: 277

Graphics Gems II is a collection of articles shared by a diverse group of people that reflect ideas and approaches in graphics programming which can benefit other computer graphics programmers. This volume presents techniques for doing well-known graphics operations faster or easier. The book contains chapters devoted to topics on two-dimensional and three-dimensional geometry and algorithms, image processing, frame buffer techniques, and ray tracing techniques. The radiosity approach, matrix techniques, and numerical and programming techniques are likewise discussed. Graphics artists and computer programmers will find the book invaluable.


Fritsch E, Rossman G (1987) An update on the color in gems. Part 1: introduction and colors caused by dispersed metal ions. Gems Gemol 23(3):126–137 Fritsch ...


Author: George R. Rapp

Publisher: Springer Science & Business Media

ISBN: 9783662050057

Category: Science

Page: 326

View: 364

1.1 Prologue What is archaeomineralogy? The term has been used at least once before (Mitchell 1985), but this volume is the first publication to lay down the scientific basis and systematics for this subdiscipline. Students sometimes call an introductory archaeology course "stones and bones." Archaeomineralogy covers the stones component of this phrase. Of course, archaeology consists of a great deal more than just stones and bones. Contemporary archaeology is based on stratigraphy, geomorphology, chronometry, behavioral inferences, and a host of additional disciplines in addition to those devoted to stones and bones. To hazard a definition: archaeomineralogy is the study of the minerals and rocks used by ancient societies over space and time, as implements, orna ments, building materials, and raw materials for ceramics and other processed products. Archaeomineralogy also attempts to date, source, or otherwise char acterize an artifact or feature, or to interpret past depositional alteration of archaeological contexts. Unlike geoarchaeology, archaeomineralogy is not, and is not likely to become, a recognized subdiscipline. Practitioners of archaeomineralogy are mostly geoarchaeologists who specialize in geology and have a strong background in mineralogy or petrology (the study of the origin ofrocks).

3 Beacons for 7 Lighthouses of Primary Colors

Deanna E. Moreaux ... These people used all different sizes and colors of gemstones and these gemstones were set in silver, gold and other minerals that ...


Author: Deanna E. Moreaux

Publisher: AuthorHouse

ISBN: 9781425980139

Category: History

Page: 180

View: 484

Many people think that they do not need a book on "how to write a really bad grant application" - they already know how. Actually, this book is intended as a guide to writing grant applications that will get funded. One way to write a good grant application is to avoid writing a bad one. This book analyzes "bad" scientific grant applications from a humorous perspective. There are also some sections on obtaining funding from private foundations and industry, and a few parts that are pure silliness. All pieces in this book are original and are either fiction (the humor pieces) or non-fiction (the serious advice). The reader will hopefully be able to tell the two apart.

Gems Computers and Attractors For 3 Manifolds

Then there is a 2-gem G inducing S. Proof: Let T be a triangulation for S. From T we construct G as follows: its vertices are triples of the form (v,e, ...


Author: S¢stenes Lins

Publisher: World Scientific

ISBN: 9789812796196

Category: Electronic books

Page: 468

View: 541

This text provides a guide to dealing with 3-manifolds by computers. Its emphasis is on presenting algorithms which are used for solving (in practice) the homeomorphism problem for the smallest of these objects. The key concept is the 3-gem, a special kind of edge-colored graph, which encodes the manifold via a ball complex. Passages between 3-gems and more standard presentations like Heegaard diagrams and surgery descriptions are provided. A catalogue of all closed orientable 3-manifolds induced by 3-gems up to 30 vertices is included. In order to help the classification, various invariants are presented, including the new quantum invariants.

The Ohio Poland China Record

Far Ahead 11331 187 Belle E. 26564 357 Model 30748 705 BATES , J. B. , & SON , Edward's ... Colored Gem 2d 27604 4 3 Palo King 12275 264 Gem of Valley .


Author: Ohio Poland-China record company


ISBN: PSU:000055548755



View: 781

The Global Diamond Industry

Fritsch E., Phelps A.W. (1993) Type IIb diamond thin films deposited onto ... 3, pp. 165–168. Fryer C. (1983) Gem Trade Lab Notes: Painted pink diamond—the ...


Author: Roman Grynberg

Publisher: Springer

ISBN: 9781137537614

Category: Business & Economics

Page: 304

View: 410

The Global Diamond Industry: Economics and Development brings together a collection of papers covering various aspects of the diamond industry including economics, law, history, sociology and development across two volumes.

The Science of Color

Note that the metallic-like characteristic does not show in color printing. ... Fritsch, E. and Rossman, G.R. (1988b) An update on color in gems, Part 3.


Author: Steven K. Shevell

Publisher: Elsevier

ISBN: 0080523226

Category: Medical

Page: 350

View: 136

The Science of Color focuses on the principles and observations that are foundations of modern color science. Written for a general scientific audience, the book broadly covers essential topics in the interdisciplinary field of color, drawing from physics, physiology and psychology. This book comprises eight chapters and begins by tracing scientific thinking about color since the seventeenth century. This historical perspective provides an introduction to the fundamental questions in color science, by following advances as well as misconceptions over more than 300 years. The next chapters then discuss the relationship between light, the retinal image, and photoreceptors, followed by a focus on concepts such as color matching and color discrimination; color appearance and color difference specification; the physiology of color vision; the 15 mechanisms of the physics and chemistry of color; and digital color reproduction. Each chapter begins with a short outline that summarizes the organization and breadth of its material. The outlines are valuable guides to chapter structure, and worth scanning even by readers who may not care to go through a chapter from start to finish. This book will be of interest to scientists, artists, manufacturers, and students.

Gems Gemology

Kane R.E. , Kammerling R.C. , Koivula J.I. , Shigley J.E. , Fritsch E. ( 1990 ) The identification of blue diffusion - treated sapphires . Gems e Gemology ...




ISBN: UOM:39015059076615

Category: Gemology


View: 747

Graphics Gems

For instance, consider the reduced scenario of 12 colors (as on a four-bit system in which ... while Med X Med X Min 3 N do Med e- Med -- 1: Med e- Med – 1; ...


Author: Andrew S. Glassner

Publisher: Elsevier

ISBN: 9780080507538

Category: Computers

Page: 864

View: 603

"The GRAPHICS GEMS Series" was started in 1990 by Andrew Glassner. The vision and purpose of the Series was - and still is - to provide tips, techniques, and algorithms for graphics programmers. All of the gems are written by programmers who work in the field and are motivated by a common desire to share interesting ideas and tools with their colleagues. Each volume provides a new set of innovative solutions to a variety of programming problems.

Gemstones of the World

Since 1983 , another 20 percent have been classified as “ almost gemstone ... In the valuation of faceted diamonds , color , clarity , cut , and carat are ...


Author: Walter Schumann

Publisher: Sterling Publishing Company, Inc.

ISBN: 140276829X

Category: Nature

Page: 319

View: 530

Provides detailed information regarding the physical characteristics and unique traits of more than 1,800 precious and semiprecious stones, as well as discussing gemstone structure, production, name origin, and symbolism.

GPU Computing Gems

We also construct a precoloring-based lock-free variation of the ... 3: While e(s) + e(t) < ExcessTotal do 4: copy h from the CPU main memory to the CUDA ...


Author: Wen-mei W. Hwu

Publisher: Elsevier

ISBN: 9780123859631

Category: Computers

Page: 541

View: 501

"Since the introduction of CUDA in 2007, more than 100 million computers with CUDA capable GPUs have been shipped to end users. GPU computing application developers can now expect their application to have a mass market. With the introduction of OpenCL in 2010, researchers can now expect to develop GPU applications that can run on hardware from multiple vendors"--

Colored Gemstones

Colored gemstones—the Antoinette Matlins buying guide : how to select, buy, ... 1. Gems. I. Title. II. Title: Antoinette Matlins buying guide. III.


Author: Antoinette Leonard Matlins

Publisher: Gemstone Press

ISBN: 9780943763453

Category: Antiques & Collectibles

Page: 191

View: 421

Purchasing coloured gemstones can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can make buying gemstones confusing, intimidating, overwhelming, and costly. With more varieties than ever before to choose from, including altogether new gems, revolutionary new cuts, and new ways to buy gems -- such as internet auctions and TV shopping -- there has never been a more exciting time to buy or collect coloured gemstones. But there are also new high-tech treatments and sophisticated frauds to look out for. Lack of information, error, or misrepresentation can make the thrill of buying a gem or piece of jewellery confusing, intimidating, overwhelming, and costly. Buyers need a source of expert guidance. To help you avoid the pitfalls and keep the magic, Antoinette Matlins, an internationally respected expert on buying gems, puts her insider knowledge to work for you in this easy-to-read, easy-to-use guide. Practical, comprehensive, and easy to understand, the guide offers in depth all the information you need in order to know what to look for and what to look out for, including: what qualifies as a 'gemstone'?; how to evaluate colour -- and its impact on price; deciding between a natural gem and an enhanced gem; coloured gemstone synthesis and treatment; what to ask when buying the stone; what to get in writing; how to get what you want within your budget; price guides for popular gems, opals, and synthetic stones; And much, much more!

Valuing Specific Assets in Divorce

Gems and jewelry (cont'd) case studies, valuation, 21.10 equipment needed, ... 21.05, 21.08 colored gemstones, diamonds, 21.04[A], 21.04[C][1], 21.07[E], ...


Author: Robert D. Feder

Publisher: Wolters Kluwer

ISBN: 9780735513594

Category: Law

Page: 1306

View: 174

This newly updated guide for matrimonial lawyers and accountants is the companion publication for Feder's Valuation Strategies in Divorce. In individual chapters, detailed information is provided on how to evaluate specific types of marital assets; the particular accounting and financial conventions that affect the owner's income from the asset and the value of the asset; and the rules, regulations and issues peculiar to the particular asset. The reader is also provided with checklists of documents needed to appraise the asset, sources of industry information, lists of trade associations and journals, a bibliography, and a case study and report. Part I on closely-held corporations contains chapters devoted to automobile dealerships, media companies, high-tech companies, property and casualty insurance companies, construction companies, and small businesses such as bars, restaurants and gas stations. Part II covers the evaluation of various professional practices, and Part III discusses the valuation of different types of real estate assets. Federal civil service pensions, military pensions and the pensions provided by Fortune 500 corporations are examined in Part IV. The methodologies for evaluating personal property, such as gems, jewelry, and oriental rugs are found in Part V. Besides aiding attorneys and accountants, this publication will be of great assistance to appraisers, actuaries, and pension experts.

Popular Mechanics

LARGE POLISHED GEMSTONES. 15 differ- ent $1.00. Colorful crystal specimens, 3 different $1.00. Lists with order. Sering, 1705 E. Michigan, Indianapolis, ...






Page: 266

View: 971

Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.