ERROR

我们很抱歉 - 尽管我们做到了最好:发生了错误
Typedatabase
MessageYou have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near "AND SUBSTRING(categories_id,4,1) != "0") AS cat4, (SELECT categorie..." at line 5
QuerySELECT (SELECT categories_id FROM categories_description WHERE language_id = 13 AND categories_id = 000) AS cat1, (SELECT categories_id FROM categories_description WHERE language_id = 13 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2, (SELECT categories_id FROM categories_description WHERE language_id = 13 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3, (SELECT categories_id FROM categories_description WHERE language_id = 13 AND categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4, (SELECT categories_name FROM categories_description WHERE language_id = 13 AND categories_id = 000) AS cat1name, (SELECT categories_name FROM categories_description WHERE language_id = 13 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2name, (SELECT categories_name FROM categories_description WHERE language_id = 13 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3name, (SELECT categories_name FROM categories_description WHERE language_id = 13 AND categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4name, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 000) AS cat1url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4url, (SELECT wod_count_products FROM categories WHERE categories_id = 000) AS cat1cnt, (SELECT wod_count_products FROM categories WHERE categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2cnt, (SELECT wod_count_products FROM categories WHERE categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3cnt, (SELECT wod_count_products FROM categories WHERE categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4cnt

Joseph N. Pelton 
Satellite Communications [PDF ebook] 

สนับสนุน

The field of satellite communications represents the world’s largest space industry. Those who are interested in space need to understand the fundamentals of satellite communications, its technology, operation, business, economic, and regulatory aspects. This book explains all this along with key insights into the field’s future growth trends and current strategic challenges. Fundamentals of Satellite Communications is a concise book that gives all of the key facts and figures as well as a strategic view of where this dynamic industry is going. Author Joseph N. Pelton, Ph D, former Dean of the International Space University and former Director of Strategic Policy at Intelstat, presents a readable book about the entire essence of the satellite communication field.

€53.49
วิธีการชำระเงิน

สารบัญ

Chapter 1: Introduction to Satellite Communications.- Chapter 2: Orbits, Services and Systems.- Chapter 3: Overview of Communication Satellites Technology.- Chapter 4: The Design, Engineering, Manufacture, and Operation of a Communications Satellites.- Chapter 5: Earth Stations, Antennas, and User Devices.- Chapter 6: Satellite Deployment, Station-Keeping and Related Insurance Coverage.- Chapter 7: Key Business, Trade and Regulatory Issues.- Chapter 8: The Future of Satellite Communications.- Chapter 9: Top Ten Things to Know about Satellite Communications.- Appendix 1: Definitions and Acronyms.- Appendix 2: Bibliography and Further Reading.- About the Author.

เกี่ยวกับผู้แต่ง

Joseph N. Pelton, Director Emeritus of the Space and Advanced Communications Research Institute, George Washington University and Former Dean, International Space University

ซื้อ eBook เล่มนี้และรับฟรีอีก 1 เล่ม!
ภาษา อังกฤษ ● รูป PDF ● หน้า 126 ● ISBN 9781461419945 ● ขนาดไฟล์ 2.0 MB ● สำนักพิมพ์ Springer New York ● เมือง NY ● ประเทศ US ● การตีพิมพ์ 2011 ● ที่สามารถดาวน์โหลดได้ 24 เดือน ● เงินตรา EUR ● ID 2239644 ● ป้องกันการคัดลอก โซเชียล DRM

หนังสืออิเล็กทรอนิกส์เพิ่มเติมจากผู้แต่งคนเดียวกัน / บรรณาธิการ

711 หนังสืออิเล็กทรอนิกส์ในหมวดหมู่นี้