Railroad Control in Nebraska

emittance control in high power linacs

چکیده این پایان نامه به بررسی اثر سیم پیچ مغناطیسی و کاوه یِ خوشه گر با بسامد رادیویی بر هاله و بیرونگراییِ باریکه هایِ پیوسته و خوشه ایِ ذرات باردار در شتابدهنده های خطیِ یونی، پروتونی با جریان بالا می پردازد و راه حل هایی برای بهینه نگهداشتن این کمیتها ارایه می دهد. بیرونگرایی یکی از کمیتهای اساسی باریکه هایِ ذرات باردار در شتابدهنده ها است که تاثیر قابل توجهی بر قیمت، هزینه و کاراییِ هر شتابدهند...

Rescheduling and Train Control: A New Framework for Railroad Traffic Control in Heavily Used Networks

The paper explains a new advanced rail traffic management system that combines real-time rescheduling with an advanced train control tool being developed by the Swiss Federal Railways (SBB) in cooperation with the Swiss Federal Institute of Technology (ETH). The system is designed to increase network capacity and stability in heavily used mixed traffic networks while minimizing the cost of new ...

Railroad Transportation

Trespassing on the Railroad

Greater than half of all the fatal injuries on United States railroads are sustained by trespassers. The paper provides a statistical analysis of the demographics of trespassers, the activities they were engaged in, and the causes of injury. It also analyzes trends over time. The paper finds that the risks of injury and death are particularly acute for males in their 20s and 30s. The annual cas...

Retardation in Nebraska

elimination in any but the higher grammar grades. But we have seen from table III that many of these older pupils are in the lower grades; and as their tendency is to drop out at thirteen or fourteen, many of them leave before they finish the elementary school. Since it is evident that many of the pupils are repeating their work, it is well to inquire in which grades it is occurring. Dr. Ayres ...