The second longest-lived isotope of astatine, astatine-211, is the only one currently having any commercial application, being employed in medicine to diagnose and treat some diseases via its emission of alpha particles ( helium-4 nuclei ).

In 1956, 24 % of the cadmium used within the United States was used for the second application, which was for red, orange and yellow pigments based on sulfides and selenides of cadmium.

Most identities in chemical thermodynamics arise from application of the first and second laws of thermodynamics, particularly the law of conservation of energy, to these state functions.

The first and most necessary part of philosophy concerns the application of doctrine, for example, that people should not lie ; the second concerns reasons, e. g. why people should not lie ; while the third, lastly, examines and establishes the reasons.

The second is to promote, as a deliberate act of Government policy, creativity and the dissemination and application of its results and to encourage fair trading which would contribute to economic and social development.

In both cases, application of Newton's second law would not work for the rotating observer without invoking centrifugal and Coriolis forces to account for their observations ( tension in the case of the spheres ; parabolic water surface in the case of the rotating bucket ).

Depending on the clock frequency, the number of memory wait states, as well as on the characteristics of the particular application program, the average performance for the Intel 8088 ranged from approximately 0. 33 – 1 million instructions per second.

Once the spacecraft arrives, a second application of thrust will re-circularize the orbit at the new location.

The first part has control information that is needed to decrypt the application / octet-stream second part.

The second application for UV microscopes is contrast enhancement where the response of individual samples is enhanced, relative to their surrounding, due to the interaction of light with the molecules within the sample itself.

The second major application of nitrates as oxidizing agents, most notably in explosives where the rapid oxidation of carbon compounds liberates large volumes of gases ( see Gunpowder for an example ).

The application date submitted by Caleb Bradham for the second trademark is Saturday, April 15, 1905 with the successful registration date of April 15, 1906, over three years after the original date.

For example, loss of a packet in audio application may result in loss of a fraction of a second of audio data, which can be made unnoticeable with suitable error concealment algorithms.

The major commercial application of samarium is in samarium-cobalt magnets which have permanent magnetization second only to neodymium magnets ; however, samarium compounds can withstand significantly higher temperatures, above 700 ° C, without losing their magnetic properties.

R. Hilsch and R. W. Pohl in 1938 demonstrated a solid-state amplifier using a structure resembling the control grid of a vacuum tube ; although the device displayed power gain, it had a cut-off frequency of one cycle per second, too low for any practical applications, but an effective application of the available theory.

An emergency or main air supply line pressurizes the trailer's air tank and disengages the emergency brake, and a second service line controls the brake application.

At the end of 1939, when Lazarsfeld submitted a second application for funding, the musical section of the study was duly left out.

The " goodput " is the amount of useful information that is delivered per second to the application layer protocol.

Boole's first published paper was Researches in the theory of analytical transformations, with a special application to the reduction of the general equation of the second order, printed in the Cambridge Mathematical Journal in February 1840 ( Volume 2, no.

* Breakthroughs in high-performance computing, including the development of novel concepts for massively parallel computing and the design and application of computers that can carry out hundreds of trillions of operations per second.

On June 22, 2006, researchers at LLNL announced that they had devised a scientific software application that sustained 207. 3 trillion operations per second.

The application of the idea to the area of second language acquisition ( SLA ) is represented mainly by the McGill linguist Lydia White.

The " squealing " ( which is actually a sound that changes in pitch 100 times every second ) noises made by some modems with speaker output immediately after a connection is established are in fact the sounds of modems at both ends engaging in a handshaking procedure ; once the procedure is completed, the speaker might be silenced, depending on the settings of operating system or the application controlling the modem.

In the year following his marriage Mendelssohn won the prize offered by the Berlin Academy for an essay on the application of mathematical proofs to metaphysics, On Evidence in the Metaphysical Sciences ; among the competitors were Thomas Abbt and Immanuel Kant ( who came second ).

Whether they succeeded is an open question ; while at least one comparison exists which used implementations from the second quarter of 2008 – it shows x264 scoring higher than Dirac – it is now somewhat out of date, and is in any case of questionable scientific merit.

A second application of the Dirac operator will now reproduce the Pauli term exactly as before, because the spatial Dirac matrices multiplied by i, have the same squaring and commutation properties as the Pauli matrices.

The second situation is illustrated by the operator T on Af ( F any field ) represented in the standard basis by Af.

The second assumption is that the operator must respect the associative rule:

Powers are usually also written without operator, but with the second argument as superscript.

In other words, if we hold the first entry of the bilinear map fixed, while letting the second entry vary, the result is a linear operator, and similarly if we hold the second entry fixed.

In addition, Tony England became the second amateur radio operator to transmit from space during the mission.

The government is planning to start the process for licensing a second national operator for voice and transport services by 2008, with a view to this company starting operations in 2009.

Gibtelecom numbers are now eight digits beginning with 200 and a second operator CTS Gibraltar Limited has announced it will be providing fixed line services beginning with the prefix 216.

In addition, the < operator returns its second argument if it succeeds, allowing things like < code > if a < b < c </ code >, a common type of comparison that in most languages must be written as a disjunction of two inequalities like < code > if a < b && b < c </ code >.

In the second half of the twentieth century remote control locomotives started to enter service in switching operations, being remotely controlled by an operator outside of the locomotive cab.

In the above expression '( 3 + 5 )' is the first operand for the multiplication operator and ' 2 ' the second.

The evolution operator is obtained in the interaction picture where time evolution is given by the interaction Hamiltonian, which is the integral over space of the second term in the Lagrangian density given above:

If there are multiple operations, the operator is given immediately after its second operand ; so the expression written " 3 − 4 + 5 " in conventional infix notation would be written " 3 4 − 5 +" in RPN: first subtract 4 from 3, then add 5 to that.

The second GSM network operator started its operation on January the 15th 1997 under the name GlobTel a. s.

Telkom is no longer the single operator in South Africa, and faces competition from the second Fixed Network Operator Licensee, Neotel, as well as the three mobile operators, Vodacom, MTN and Cell-C.

TeliaSonera owns 80 percent of the shares and votes in Spice Nepal, the second largest mobile operator in Nepal.

Spice Nepal launched its operations in September 2005 and is the second largest mobile operator in Nepal, with around 1. 8 million subscriptions and an estimated market share of approximately 41 percent, as of August 2008.

TeliaSonera owns 35. 6 % of MegaFon, the second mobile operator in Russia

* APM Terminals, the world's second largest container terminal operator

Whereas the vocoder analyzes speech, transforms it into electronically transmitted information, and recreates it, The Voder ( from Voice Operating Demonstrator ) generates synthesized speech by means of a console with fifteen touch-sensitive keys and a pedal, basically consisting of the " second half " of the vocoder, but with manual filter controls, needing a highly trained operator.

* 1884: Alexander Mozhaysky of Kotka, Grand Duchy of Finland, Russian Empire makes the second known " powered, assisted take off of a heavier-than-air craft carrying an operator ".

In a two factor transaction, the presented credential and a second factor are needed for access to be granted ; another factor can be a PIN, a second credential, operator intervention, or a biometric input.

It is the largest single-brand restaurant chain globally and is the second largest restaurant operator globally after Yum!