The National Bureau of Standards and its Work
نویسندگان
چکیده
منابع مشابه
the geopolitics of afghanistan after september 11, 2001, and its impact on iranian national security
abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
15 صفحه اولA Report on the National Bureau of Standards pH Standards
In 1980, the research program in pH was re-established at the National Bureau of Standards (NBS). This report describes the state of this research, as well as the state of the NBS pH standards. The thermodynamic definition and the determination of pH are elaborated. The problems of liquid junction potentials encountered in the practical determination of pH are discussed. The goal of the researc...
متن کاملof Research of the National Bureau of Standards Grid Plate Calibration at the National Bureau of Standards January - February 1988
National Bureau of Standards Gaithersburg, MD 20899 Grid plates are calibrated by a completely automated high precision measuring machine which uses a computer vision system to detect and locate the grid marks. The system routinely calibrates plates of up to 600x600 millimeters with accuracies of 0.5 micrometers. Descriptions of the system components, level of performance and tests of the absol...
متن کاملComputer Development at the National Bureau of Standards
The first fully operational stored-program electronic computer in the United States was built at the National Bureau of Standards. The Standards Electronic Automatic Computer (SEAC) [1] (Fig. 1.) began useful computation in May 1950. The stored program was held in the machine’s internal memory where the machine itself could modify it for successive stages of a computation. This made a dramatic ...
متن کاملNATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY (NIST) (Formerly National Bureau of Standards)
Our objectives in the DARPA Spoken Language Program are: (1) to provide a central role in speech database design, development and distribution; and (2) to design, coordinate implementation of, and analyze results of performance tests. (3) Prepared the Prototype CD-ROM Version of the DARPA TIMIT Acoustic-Phonetic Speech Database. This CD-ROM contains the data for 420 talkers (4200 sentence utter...
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: 1911
ISSN: 0036-8733
DOI: 10.1038/scientificamerican10211911-264supp