欢笑
发表于 2025-3-25 07:19:37
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机构
发表于 2025-3-25 08:05:26
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Arroyo
发表于 2025-3-25 14:15:26
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虚假
发表于 2025-3-25 17:55:55
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Vital-Signs
发表于 2025-3-25 20:18:18
erschiedlichen Lebensabschnitten ausgewirkt hat und bis heute auswirkt, erforderte ein methodisches Vorgehen, das es den Untersuchungsteilnehmern gestattet, subjektiv bedeutsame Ereignisse und Entwicklungen umfassend zu schildern und im Kontext ihrer gesamten Lebensgeschichte zu interpretieren. Im v
斜谷
发表于 2025-3-26 01:58:24
Introduction,38–1822) discovered it and gave it a name. Infrared detector development proceeded at a leisurely pace for the next 150 years. In 1947 ., and ., through the discovery of the transistor, sparked large-scale research and development into the band structure and transport processes of semiconductors. Th
indicate
发表于 2025-3-26 07:40:58
The Photon Detection Process,an be described in terms of unique figures of merit which enable the system designer to predict, then evaluate, the performance of the system in which they are employed. And, like all sensors, their performance cannot exceed that of an ideal device of their class; fundamental limits exist which cons
直觉没有
发表于 2025-3-26 11:35:59
Thermal Detectors,or. Recently it has been discovered that thermal detectors have been in use for perhaps millions of years in target locating systems by two families of snake who use the temperature difference between their prey and its surroundings to locate and capture the small animals on which they feed (. and .
Odyssey
发表于 2025-3-26 14:32:48
Photovoltaic and Photoconductive Infrared Detectors,though they must often be cooled to achieve such performance. Their performance is high and continues to improve because of the development of highly purified, single-crystal semiconductors as their active materials. However, several different materials appear to be competing for dominance, and it i
滑动
发表于 2025-3-26 19:01:43
Photoemissive Detectors,etection. These are 1) the detection of low-intensity signals, either weak in total available power or diffuse at the optical focal plane; 2) high-speed detection of low-level signals; and 3) the acquisition of high resolution spatial information (imaging) .