ERROR

เราต้องขออภัย - แม้ว่าเราจะพยายามอย่างดีที่สุด: เกิดข้อผิดพลาด
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 = 16 AND categories_id = 000) AS cat1, (SELECT categories_id FROM categories_description WHERE language_id = 16 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2, (SELECT categories_id FROM categories_description WHERE language_id = 16 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3, (SELECT categories_id FROM categories_description WHERE language_id = 16 AND categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4, (SELECT categories_name FROM categories_description WHERE language_id = 16 AND categories_id = 000) AS cat1name, (SELECT categories_name FROM categories_description WHERE language_id = 16 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2name, (SELECT categories_name FROM categories_description WHERE language_id = 16 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3name, (SELECT categories_name FROM categories_description WHERE language_id = 16 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

Donovan Muddle 
Rail Headway and Speeds [EPUB ebook] 

สนับสนุน

This book provides a detailed run-through of the calculation of a headway. This difficult topic is covered in detail, with a discussion on different types of signals and how this affects a headway. Stations and their effect on headway are also covered, and the effect of a station on a headway can be major. Thoe formulas are presented to complete the calculations needed to understand how headways can be calculated for almost any situation.


Tilt trains are a solution to getting trains faster, and this book details many of tyhe key equations to describe how fast a til train can go. In many parts of the world tilt trains have allowed big reductions in travel times, but how is it done? This book details how fast tilt trains can go.


Speed is often a critical factor in many rail systems. But how is it determined for any rail system. It is of course the lowest permissible speed for many of the different constraints placed on a rail system by its infrastructure, but what are they? Curves both horizontal, and cant, all play a role. The equations that explain and describe the typical limitations on the speed on a rail system are in this book.

This book provides a detailed run-through of the calculation of a headway. This difficult topic is covered in detail, with a discussion on different types of signals and how this affects a headway. Stations and their effect on headway are also covered, and the effect of a station on a headway can be major. Thoe formulas are presented to complete the calculations needed to understand how headways can be calculated for almost any situation.


Tilt trains are a solution to getting trains faster, and this book details many of tyhe key equations to describe how fast a til train can go. In many parts of the world tilt trains have allowed big reductions in travel times, but how is it done? This book details how fast tilt trains can go.


Speed is often a critical factor in many rail systems. But how is it determined for any rail system. It is of course the lowest permissible speed for many of the different constraints placed on a rail system by its infrastructure, but what are they? Curves both horizontal, and cant, all play a role. The equations that explain and describe the typical limitations on the speed on a rail system are in this book.

€9.26
วิธีการชำระเงิน
ซื้อ eBook เล่มนี้และรับฟรีอีก 1 เล่ม!
ภาษา อังกฤษ ● รูป EPUB ● หน้า 236 ● ISBN 9780994434036 ● สำนักพิมพ์ Dolans Publishing ● การตีพิมพ์ 2016 ● ที่สามารถดาวน์โหลดได้ 6 ครั้ง ● เงินตรา EUR ● ID 5274520 ● ป้องกันการคัดลอก Adobe DRM
ต้องใช้เครื่องอ่านหนังสืออิเล็กทรอนิกส์ที่มีความสามารถ DRM

หนังสืออิเล็กทรอนิกส์เพิ่มเติมจากผู้แต่งคนเดียวกัน / บรรณาธิการ

2,482 หนังสืออิเล็กทรอนิกส์ในหมวดหมู่นี้