Valenta Jan (27 results)

Hard Cover. Condition: Good. No date. Circa 1950's. Large blue hardback with flock block pattern. Boards are sun faded and spine a little worn. Slightly musty. Contains 78 stunning balck and white plates of Greece, Greek culture, people, places, situations. Text is is English, German and French. ( Main tile is is Greek ) Size: 4to - over 9¾" - 12" tall. …

Softcover. Condition: As New. Leichte Kratzer / Abnutzungen / Druckstellen.

Softcover. Condition: Fine. Leichte Gebrauchsspuren.

Softcover. Condition: Fine. Abnutzung / Risse - leicht; Vergilbt / ausgeblichen.

173 p. Bound in the publisher's grey cloth with pictorial dustjacket (Spine-ends of the dustjacket rubbed, otherwise in good condition.).

Paperback. Condition: Brand New. reprint edition. 560 pages. 10.00x7.50x1.25 inches. In Stock.

Cloth. Condition: Good. Dust Jacket Condition: Poor. First English Edition. 1st US Edition, (The Czech original, "Po Stopach Poldrnich Pokladu" was published in 1930): 352pp. Yellow cloth covers with black titling in dustjacket. Jan Welzl (18681948), travelled through Northern Canada and the polar regions, worked as a gold prospector, and became an Eskimo chief. Shelfware, dustjacket very tatty, pieces missing. Covers grubby, spine spotted, end papers spotted. Signature on fep. Contents clean. Good This is the first USA edition. Quantity Available: 1. Shipped Weight: Under 1 kilogram. Category: Arctic & Antarctic; Antarctic; Pictures of this item not already displayed here available upon request. Inventory No: 2972.…

OLn. mit OSchutzU.. Condition: Gut. 170 S. mit zahlr. Abb., 31 x 24 cm, Leichte Gebrauchsspuren cs Gewicht in Gramm: 1950.

Condition: New.

Condition: New. pp. 250.

Condition: New.

Condition: New.

Hardcover. Condition: New. New, 1st Edition . Delivery time is 3-5 business days via either UPS, FedEx, DHL. Premium quality books.

Condition: New. In English.

Condition: As New. Unread book in perfect condition.

Hardcover. Condition: Like New. LIKE NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

Hardcover. Condition: Brand New. 1st edition. 431 pages. 9.00x6.25x1.25 inches. In Stock.

Condition: As New. Unread book in perfect condition.

Hardcover. Condition: New. NEW. SHIPS FROM MULTIPLE LOCATIONS. book.

orig.cloth. Vyd. I. 31x23cm, 173 pp. Contains a 32pp Czech introductory material + 21pp Czech chronology. Remainder of book is entirely devoted to photographs documenting the November 1989 overthrow of Communist regime. Name on flyleaf. Minor rubbing. VG., dustwrapper.

Condition: New. pp. 250 This item is printed on demand.

HRD. Condition: New. New Book. Delivered from our UK warehouse in 4 to 14 business days. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

HRD. Condition: New. New Book. Shipped from UK. THIS BOOK IS PRINTED ON DEMAND. Established seller since 2000.

Condition: New. PRINT ON DEMAND pp. 250.

Gebunden. Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Jan Valenta is professor of quantum optics and optoelectronics at the Department of Chemical Physics and Optics, Charles University, Prague. His research is oriented toward optical properties of semiconductor nanostructures, especially s.…

Buch. Condition: Neu. nach der Bestellung gedruckt Neuware - Printed after ordering - Silicon is an abundant element and is produced in large quantities for the electronic industry. The falling price of this commodity also feeds the growth of solar photovoltaics (PV). However, solar cells (SCs) based on bulk semiconductors have quite limited maximum attainable performance. Therefore, new principles and materials are being investigated to build the third generation of SCs with improved conversion efficiency achieved by the optimized harvesting of the solar spectrum, improved carrier generation, better light management, etc. The unique properties of semiconductor nanostructures (tuning of optoelectronic properties by the quantum confinement effect, stronger interaction with light, etc.) can be exploited to fabricate novel types of high-efficiency solar cells. Here, again, silicon along with carbon and germanium (group IV elements) is about to play a major role.In view of the increasing research effort devoted to nanostructures' applications in PV, this book aims to provide a background to students and newcomer researchers as well as to point out some open questions and promising directions for future development. It presents a useful overview of group IV nanostructures for PV, which includes the theoretical background, presentation of main solar cell principles, technological aspects, and nanostructure characterization techniques, and finishes with the design and testing of prototype devices. It is not intended to be just a review of the most up-to-date literature, but the authors aim to provide an educative background of the field. All authors are renowned researchers and experienced teachers in the field of semiconductor nanostructures and photovoltaics. …

Condition: New. Dieser Artikel ist ein Print on Demand Artikel und wird nach Ihrer Bestellung fuer Sie gedruckt. Semiconductor luminescence has been a rapidly expanding field over the last fifty years. Work on various types of luminescence radiation has been taking place but this is the first book that reviews the whole subject of semiconductor luminescence in one coh.…