منابع مشابه
Rectangular Ion Funnel: A New Ion Funnel Interface for Structures for Lossless Ion Manipulations
Structures for lossless ion manipulations (SLIM) have recently demonstrated the ability for near lossless ion focusing, transfer, and trapping in subatmospheric pressure regions. While lossless ion manipulations are advantageously applied to the applications of ion mobility separations and gas phase reactions, ion introduction through ring electrode ion funnels or more conventional ion optics t...
متن کاملThe Information-Seeking Funnel
We introduce a new conceptual framework for information seeking called the information-seeking funnel, inspired by a common model of how people are attracted to products they end up buying. By using this model, we are able to better understand why current search tools are inadequate for several stages of the information-seeking process. At the same time, we explore what characteristics tools th...
متن کاملThe funnel trap paradox
In this article, an illustrative example is given for the coarse-graining of a Markov process which leads to a shift in the statistical weights of a two-states-system. The example is based on a 2D-funnel trap. The funnel trap is constructed in such a way, that the area inside and outside of the trap is identical. However, observing the flight of the insect as a Markov process, the probability f...
متن کاملFunnel plots for comparing institutional performance.
'Funnel plots' are recommended as a graphical aid for institutional comparisons, in which an estimate of an underlying quantity is plotted against an interpretable measure of its precision. 'Control limits' form a funnel around the target outcome, in a close analogy to standard Shewhart control charts. Examples are given for comparing proportions and changes in rates, assessing association betw...
متن کاملA ‘funnel’ Turnpike Theorem for Optimal Growth Problems with Discounting
A particularly interesting question in mathematical economics is the ‘turnpike’ problem. There have been many papers written on the subject, bearing out Nikaido’s (1964) prediction that ‘it will continue to bewitch many people’. In this paper we present an extension to the classical turnpike theory for the discounted optimal control problem, developed in the context of Implicit Programming theo...
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: Scientific American
سال: 1893
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09301893-14806bsupp