Noise-equivalent and signal-equivalent visual summation of quantal events in space and time
نویسندگان
چکیده
منابع مشابه
on the equivalence of constructed-response and multiple-choice : stem-equivalent, stem non-equivalent but content equivalent, and stem and content non-equivalent items in reading comprehension using multifaceted rasch
the present study investigated construct equivalence of multiple choice (mc) and constructed response (cr) item types across stem and content equivalent mc and cr items (item type ‘a’), non-stem-equivalent but content equivalent mc and cr items (item type ‘b’), and non-stem and non-content equivalent mc and cr items (item type ‘c’). one hundred seventy english-major undergraduates completed mc ...
Separating Equivalent Space-Time Theories
A complete set of Equivalent Space-Time Theories based on a group of “equivalent” transformations has been studied by Selleri. This “equivalent” set of space-time theories includes Special Relativity Theory involving the Lorentz transformations and a semi-classical Absolute Space Theory based on the generalized Galilean or inertial transformations. In order to separate these theories, the light...
متن کاملThe Cost and Equivalent System Mass of Space Crew Time
In “Theory and Application of the Equivalent System Mass Metric,” Levri, Vaccari, and Drysdale computed the Equivalent System Mass (ESM) of crew time. ESM is a cost-type metric based on allocated mass that is often used in life support systems. The previous paper suggested that the cost per hour of crew time should be equal to the ESM of the life support system, divided by the number of availab...
متن کاملNoise and Equivalent Circuit of Double Injection
.Measurements o~ the high-frequ~ncy noi:e of a silicon double-injection diode result in (i'l)=a• 4kT ( 1/r) ~if With a= 1.04 and m agreement With the literature. A new interpretation demands Nyquist noise with a 121 in these devices at high frequencies. This is in accord with an equivalent circuit derived for the doubleinjection process. Speculations are made on the general validity of Nyquist ...
متن کاملNoise-equivalent sensitivity of photoacoustics.
The fundamental limitations of photoacoustic microscopy for detecting optically absorbing molecules are investigated both theoretically and experimentally. We experimentally demonstrate noise-equivalent detection sensitivities of 160,000 methylene blue molecules (270 zeptomol or 2.7×10-19 mol) and 86,000 oxygenated hemoglobin molecules (140 zeptomol) using narrowband continuous-wave photoacous...
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: Visual Neuroscience
سال: 1998
ISSN: 0952-5238,1469-8714
DOI: 10.1017/s0952523898154123