stephen hofer (33 résultats)

Paperback. Etat : Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less 0.85.

paperback. Etat : Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

paperback. Etat : Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

paperback. Etat : New.

Etat : Good. The book may have minor cosmetic wear (i.e. creased spine/cover, scratches, curled corners, folded pages, minor sunburn, minor water damage, minor bent). The book may have some highlights/notes/underlined pages - Accessories such as CD, codes, toys, may not be included - Safe and Secure Mailer - No Hassle Return.

Hardcover. Etat : Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

Hardcover. Etat : Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

paperback. Etat : New.

hardcover. Etat : Acceptable. Fast Shipping - Safe and Secure 7 days a week!

Paperback. Etat : Very Good. The book has been read, but is in excellent condition. Pages are intact and not marred by notes or highlighting. The spine remains undamaged.

Etat : good. Fast Free Shipping â" Good condition book with a firm cover and clean, readable pages. Shows normal use, including some light wear or limited notes highlighting, yet remains a dependable copy overall. Supplemental items like CDs or access codes may not be included.

paperback. Etat : Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority!

Etat : acceptable. The book is complete and readable, with all pages and cover intact. Dust jacket, shrink wrap, or boxed set case may be missing. Pages may have light notes, highlighting, or minor water exposure, but nothing that affects readability. May be an ex-library copy and could include library markings or stickers.

Softcover. Etat : Sehr gut. 1. Auflage. Z : 22 x 29 cm, 200 Seiten/pages - Die Ausstellungspublikation zeigt ausgewählte Werke internationaler Künstlerinnen und Künstler, die sich explizit auf Marcel Broodthaers (1924-1976) beziehen oder im Sinne einer Weiterentwicklung Motive seines uvres aufgreifen. Schon zu Lebzeiten ein überaus einflussreicher Künstler seiner Generation, wird Broodthaers auch von heutigen Künstlern produktiv rezipiert.

31x24 cm. XIV + 89. Gilt hardcover in dust jacket. In good condition. PLEASE NOTE: This item is overweight. We may ask for extra shipping costs. The book is in : English.

paperback. ITS NEW! Ships same or next bus.

Soft cover. Etat : As New. 1st Edition. TV Guide: The Official Collectors Guide is the ultimate price guide for collectors, as well as a history of TV as seen through the pages of TV Guide® magazine. The book contains almost 38,000 covers all in color, as well as the values of every issue starting from the 1950s. It profiles the history of TV programs by decades and tells collectors where and how to find back issues. The book is 8 ½ x 11 inches, perfect bound, and has 315 full-color pages. This is the first time every TV Guide digest-size cover has been printed in one publication. Dr. Stephen H. Hofer, a professor of communications at Chicago State University and curator of the Philo T. Farnsworth Television History Center in Auburn, Indiana, is the Editor.

Hardcover. Etat : New.

Paperback. Etat : New. In shrink wrap. Looks like an interesting title!

paperback. Etat : New. In shrink wrap. Looks like an interesting title!

Paperback. Etat : new. Excellent Condition.Excels in customer satisfaction, prompt replies, and quality checks.

Wraps. Etat : Very good. Presumed First Edition, First printing. Staplebound. 65, [3] pages. Tables. Figures. Formulae. Appendices, References. Specimens of poled and unpoled ''chem-prep'' PNZT ceramic from batch HF1035 were tested under hydrostatic, uniaxial, and constant stress difference loading conditions at -55, 25, and 75 C. The objective of this experimental study was to characterize the mechanical properties and conditions for the ferroelectric (FE) to antiferroelectric (AFE) phase transformations of this ''chem-prep'' PNZT ceramic to aid grain-scale modeling efforts in developing and testing realistic response models for use in simulation codes. As seen from a previously characterized material (batch HF803), poled ceramic from HF1035 was seen to undergo anisotropic deformation during the transition from a FE to an AFE phase. Also, the phase transformation was found to be permanent for the two low temperature conditions, whereas the transformation can be completely reversed at the highest temperature. The rates of increase in the phase transformation pressures with temperature were practically identical for both unpoled and poled PNZT HF1035 specimens. We observed that temperature spread the phase transformation over mean stress analogous to the observed spread over mean stress due to shear stress. Additionally, for poled ceramic samples, the FE to AFE phase transformation was seen to occur when the normal compressive stress, acting perpendicular to a crystallographic plane about the polar axis, equals the hydrostatic pressure at which the transformation otherwise takes place.

Wraps. Etat : Good. Presumed First Edition, First printing. x, 74 pages plus back cover. Illustrations (most with color). References. Velobound. Format is approximately 8.5 inches by 11 inches. Unlimited Release. Ink note on front cover. Mailing label on back. Sandia is currently developing a lead-zirconate-titanate ceramic 95/5-2Nb (or PNZT) from chemically prepared ('chem-prep') precursor powders. Previous PNZT ceramic was fabricated from the powders prepared using a 'mixed-oxide' process. The specimens of unpoled PNZT ceramic from batch HF803 were tested under hydrostatic, uniaxial, and constant stress difference loading conditions within the temperature range of -55 to 75 C and pressures to 500 MPa. The objective of this experimental study was to obtain mechanical properties and phase relationships so that the grain-scale modeling effort can develop and test its models and codes using realistic parameters. The stress-strain behavior of 'chem-prep' PNZT under different loading paths was found to be similar to that of 'mixed-oxide' PNZT. The phase transformation from ferroelectric to antiferroelectric occurs in unpoled ceramic with abrupt increase in volumetric strain of about 0.7 % when the maximum compressive stress, regardless of loading paths, equals the hydrostatic pressure at which the transformation otherwise takes place. The stress-volumetric strain relationship of the ceramic undergoing a phase transformation was analyzed quantitatively using a linear regression analysis. The pressure (P{sub T1}{sup H}) required for the onset of phase transformation with respect to temperature is represented by the best-fit line, P{sub T1}{sup H} (MPa) = 227 + 0.76 T (C). We also confirmed that increasing shear stress lowers the mean stress and the volumetric strain required to trigger phase transformation. At the lower bound of the tested temperature range, the phase transformation is irreversible. At the upper bound (75 C), the phase transformation is completely reversible as the stress causing phase transformation is removed.

Wraps. Etat : Very good. Presumed First Edition, First printing. 85, [1] pages plus back cover. Illustrations (most with color). References. Staplebound. Format is approximately 8.5 inches by 11 inches. Unlimited Release. Specimens of poled 'chem-prep' PNZT ceramic from batch HF803 were tested under hydrostatic, uniaxial, and constant stress difference loading conditions at three temperatures of -55, 25, and 75 C and pressures up to 500 MPa. The objective of this experimental study was to obtain the electro-mechanical properties of the ceramic and the criteria of FE (Ferroelectric) to AFE (Antiferroelectric) phase transformations so that grain-scale modeling efforts can develop and test models and codes using realistic parameters. The poled ceramic undergoes anisotropic deformation during the transition from a FE to an AFE structure. The lateral strain measured parallel to the poling direction was typically 35 % greater than the strain measured perpendicular to the poling direction. The rates of increase in the phase transformation pressures per temperature changes were practically identical for both unpoled and poled PNZT HF803 specimens. We observed that the retarding effect of temperature on the kinetics of phase transformation appears to be analogous to the effect of shear stress. We also observed that the FE-to-AFE phase transformation occurs in poled ceramic when the normal compressive stress, acting perpendicular to a crystallographic plane about the polar axis, equals the hydrostatic pressure at which the transformation otherwise takes place.

Black Cloth. Etat : Near Fine. Etat de la jaquette : VG+. First Edition. Binding sound and tight, bright gilt titling to spine, sleek matt black cloth boards have the odd dusky mark. Free of markings. A few small chafe spots at the bottom edge of the first few leaves near the hinge. We think a drop of glue went astray in the bindery, now gone. The dust jacket has a few fingernail indents and minor rubs. A small scuff at the lower rear hinge of the spine, 1cm long. This is a heavy tome, weighing in at over 4 kilos. International buyers please note the standard shipping displayed will not cover this. If you are concerned, please message us before placing an order, the added shipping will be reasonable and at cost. Size: Folio.

Hardcover. Etat : Very Good. 1st Edition. 4to, xxi + pp742 beautifully illustrated throughout with charts and more than 700 colour photographs. Hardcover with dust jacket. DJ in very good condition with a little shelf wear to top of spine with small tear, a little rubbing to front cover and edges. Black cloth binding with gilt titles to spine in very good+ condition with very minimal shelf wear to top of spine. Inside in near fine condition. a very good copy of this beautifully produced book that showcases the Aurora Collection, one of the world's largest collections of natural coloured diamonds ever to be shown in public. Each of the 260 diamonds were photographed with precise colour calibration, and the book's printing has also been precisely colour matched and calibrated, so that the diamonds can be seen reproduced as realistically as possible. This is a very heavy book and may cost extra postage overseas.

Etat : As New. NY: Ashland Press, 1998. 1st edition. 4to Hardcover. (2)+xxi+(3)+742pp+(4). Color photos and illustrations. Fine book and Very Good dust jacket. Black cloth with gilt spine lettering. Black dust jacket with white lettering and one front photo and rear photo. Dust jacket edgeworn. In polypropylene bag. (diamond collecing, diamonds, gems) Inquire if you need further information. NOT AVAILABLE FOR SHIPMENT OUTSIDE OF THE UNITED STATES.

Etat : Very Good. ** Signed gift inscription by Alan Bronstein on the front endpaper **; Very Good in a Very Good Minus dust jacket; Hardcover; Dust jacket is clean and intact with no tears, just moderate shelfwear to the back, and has not been price-clipped (Now fitted with a new, Brodart jacket protector); Light wear to the boards; The textblock edges are unblemished; The endpapers and all text pages are clean and unmarked; The binding is excellent with a straight spine; This book will be shipped in a sturdy cardboard box with foam padding; Large Format (11.75" - 12.75" tall); Heavy (9.6 lbs); Black dust jacket with image of colored diamond, and title in white lettering; 1998, Ashland Press; 742 pages; "Collecting and Classifying Coloured Diamonds: An Illustrated Study of the Aurora Collection," by Stephen C. Hofer.

Hardcover. Etat : Near Fine. 1st Edition. Collecting and Classifying Coloured Diamonds: An Illustrated Study of the Aurora Collection by Stephen C. Hofer. Copy number240 of a limited edition of 250 copies. Rare copy inscribed by author on half title page. Very large and heavy book bound in full leather with custom made slipcase. Hardcover first edition, first printing published in 1998 by Ashland Press. Inscribed by Author(s).

Velobound. Etat : Very good. Presumed First Edition, First printing. x, 74 pages, plus covers. Tables. Figures (some with color). References Appendices A. - D. Rear cover has mailing label and ink notation. Sandia is currently developing a lead-zirconate-titanate ceramic 95/5-2Nb (or PNZT) from chemically prepared ("chem-prep") precursor powders. Previous PNZT ceramic was fabricated from the powders prepared using a "mixed-oxide" process. The specimens of unpoled PNZT ceramic from batch HF803 were tested under hydrostatic, uniaxial, and constant stress difference loading conditions within the temperature range of -55 to 75°C and pressures to 500 MPa. The objective of this experimental study was to obtain mechanical properties and phase relationships so that the grain-scale modeling effort can develop and test its models and codes using realistic parameters. The stress-strain behavior of "chem-prep" PNZT under different loading paths was found to be similar to that of "mixed-oxide" PNZT. The phase transformation from ferroelectric to antiferroelectric occurs in unpoled ceramic with abrupt increase in volumetric strain of about 0.7 % when the maximum compressive stress, regardless of loading paths, equals the hydrostatic pressure at which the transformation otherwise takes place. The stress-volumetric strain relationship of the ceramic undergoing a phase transformation was analyzed quantitatively using a linear regression analysis. The pressure (PT1 H) required for the onset of phase transformation with respect to temperature is represented by the best-fit line, PT1 H (MPa) = 227 + 0.76 T (°C). We also confirmed that increasing shear stress lowers the mean stress and the volumetric strain required to trigger phase transformation. At the lower bound (-55°C) of the tested temperature range, the phase transformation is permanent and irreversible. However, at the upper bound (75°C), the phase transformation is completely reversible as the stress causing phase transformation is removed.