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TOPCON was established in September 1932 [4] based the merger of the surveying instruments division of K. Hattori & Co., Ltd. (now known as Seiko Holdinge Corporation) in order to manufacture the optical instruments for the Japanese Army.
Some common features of 35mm SLR photography were first seen on the Topcon RE Super. Among these is the through-the-lens exposure metering. This enabled improved exposure accuracy, especially in close-up macro photography using bellows or extension rings, and in telephotography with long lenses. In addition to this feature, the metering is at ...
The Boron–Oxygen complex LID defect is a pervasive problem with the efficiency and stability of cheap p-type wafers and a major reason that n-type is preferred for SHJ substrates. Stabilising wafers against B–O LID using the Advanced Hydrogenation Process has had variable success and reliability issues. [ 55 ]
New details about a study that warned against black plastic spatulas and other kitchen tools have come out. (Getty Creative) (Анатолий Тушенцов via Getty Images)
According to a 2008 review of studies on tadalafil, 15 percent of men who used this medication at its highest recommended dose ... Your dosage can change to fix problems. Remember, tadalafil 5 ...
This article originally appeared on USA TODAY: NFL 2024 in review: Garrett Wilson's catch, Taylor Swift headline year. Show comments. Advertisement. Advertisement. Holiday Shopping Guides.
President-elect Donald Trump plans to launch a mass deportation operation targeting millions of immigrants living in the U.S. illegally and with temporary protections once he takes office on Jan ...
For functions in certain classes, the problem of determining: whether two functions are equal, known as the zero-equivalence problem (see Richardson's theorem); [4] the zeroes of a function; whether the indefinite integral of a function is also in the class. [5] Of course, some subclasses of these problems are decidable.