منابع مشابه
Radiation Dose Reduction by Indication-Directed Focused z-Direction Coverage for Neck CT.
BACKGROUND AND PURPOSE The American College of Radiology-American Society of Neuroradiology-Society for Pediatric Radiology Practice Parameter for a neck CT suggests that coverage should be from the sella to the aortic arch. It also recommends using CT scans judiciously to achieve the clinical objective. Our purpose was to analyze the potential dose reduction by decreasing the scan length of a ...
متن کاملArbour lights
Amongst the theoreticians there was a subspecies who interacted with experimentalists — these theorists tried to make sure that their ideas were testable and that someone tested them. Preeminent amongst these was Francis Crick who wrote all the quotes above shown in red italics (taken from Crick’s autobiographical book What Mad Pursuit: A Personal View of Scientific Discovery; Basic Books, New ...
متن کاملBezier Lights
In this paper we introduce Bezier Lights, an intelligent lighting system that allows users to intuitively establish virtual boundaries in indoor environments. Boundaries can be easily created/modified by arranging the layouts of disk-shaped devices (“stones”) on the building floor. The immediate purpose of the system is to assist users in incorporating location-aware capabilities into private p...
متن کامل5.1 Unbalancing Lights
Consider a square n× n array of lights (see Figure 5.1). There is one switch corresponding to each row and each column (i.e., 2n switches). Throwing a switch changes the state of all the lights in the corresponding row or column. We now consider the problem of setting the switches so as to maximize the number of lights that are on, starting from an arbitrary initial on/off configuration of the ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Navigation
سال: 1969
ISSN: 0373-4633,1469-7785
DOI: 10.1017/s0373463300025443