For example, compositing is used extensively when combining computer rendered image elements with live footage.

For example, given two image elements A and B, the most common compositing operation is to combine the images such that A appears in the foreground and B appears in the background.

For the sake of compositing, the background elements of the scene must remain identical between takes, requiring anything movable to be locked down ; the blank reference take can aid in resolving any discrepancies between the other shots.

For more advanced compositing Final Cut Pro is compatible with Apple's Shake ( discontinued ) and Apple Motion software.

For example, a TV weather person is recorded in front of a plain blue or green screen, while compositing software replaces only the designated blue or green color with weather maps.

For example, observable physical quantities are represented by self-adjoint operators, such as energy or momentum, whereas transformative processes are represented by unitary linear operators such as rotation or the progression of time.

For example, if an office has two telephone operators who are both busy all the time, that would represent two erlangs ( 2 E ) of traffic ; or a radio channel that is occupied for one hour continuously is said to have a load of 1 Erlang.

For example, Ireland currently has 4 licenced operators with their own networks despite a smaller and sparser population than France's making improved coverage less economically rewarding.

For arithmetic operators, this follows the rule of reverse Polish notation.

For a thorough listing of the rest of the MUMPS commands, operators, functions and special variables, see these online resources:

For example, a roof bolter ( commonly used by mine roof bolter operators ) can reach sound power levels of up to 115 dB.

For example, in classical mechanics, the derivative is used ubiquitously, and in quantum mechanics, observables are represented by linear operators.

Over time, some PDP-10 operators began running operating systems assembled from major components developed outside DEC. For example, the main Scheduler might come from one university, the Disk Service from another, and so on.

For instance, the fundamental observables associated with the motion of a single quantum mechanical particle are the position and momentum operators and.

For most data types, specific variation operators can be designed.

( For delay networks, the Erlang-C formula allows network operators to determine the probability of delay depending on peak traffic and the number of circuits.

For example, the dive industry in Gansbaai, South Africa, consists of six boat operators with each boat guiding 30 people each day.

For example, in the State of Washington it is mandatory for pipeline operators to be able to detect and locate leaks of 8 percent of maximum flow within fifteen minutes or less.

For Future Internet network operation through traffic monitoring in multi-domain scenarios, using mediator tools ( middleware ) is a powerful help since they allow operators, searchers and service providers to supervise Quality of service and analyse eventual failures in telecommunication services.

For example, one can specify the density operators describing microcanonical, canonical, and grand canonical ensembles of quantum mechanical systems, in a mathematically rigorous fashion.

For example, a PLC may control the flow of cooling water through part of an industrial process, but the SCADA system may allow operators to change the set points for the flow, and enable alarm conditions, such as loss of flow and high temperature, to be displayed and recorded.

For a time in the 1970s, the German special operations unit GSG 9 trained some of its operators in the " art " of the drive-by shooting so as to be able to better protect those in its charge.

For details and examples on how quantum mechanical operators act on the wave function, commutation of operators, and expectation values of operators ; see Operator ( physics ).

For this section we can summarize syntax by identifying an expression with a tree whose leaf nodes are variables, constants, function constants or predicate constants and whose non-leaf nodes are logical operators.

For example, the Browns Ferry fire damaged control cables and required the plant operators to manually activate cooling systems.

For these reasons, many ship operators did not bother to use the canal and traffic was far below what had been predicted.

For, unlike the Sioux and the Crows, the Aricaras are not great horsemen, nor are they aggressive like the savage Blackfeet.

For a brief period each year, the rays of the sun are warm enough to melt some of the snows piled a mile deep at the base of the headwalls, and then the pinnacles glisten in the daytime at high noon, and billions of gallons of water begin their slow seepage under the glaciers and across the rockstrewn hanging valleys on their long, meandering journey to the sea -- running east past the sky-carving massifs of Gurla Mandhata and Kemchenjunga, then turning south and curling down through the jungles of Assam, past the Khasi Hills, and into Bengal, past Sirinjani and Madaripur, until the hard water of the melting snows mingles with the soft drainage of fields and at length fans out to meld with the teeming salt depths of the Bay of Bengal.

For these centers, too, are on the gold circuit.

For drugs are in themselves no royal road to creativity.

For the occasion on which everyone already knows everyone else and the host wishes them to meet one or a few honored newcomers, then the `` open house '' system is advantageous because the honored guests are fixed connective points and the drifting guests make and break connections at the door.

For example, there are persons who are in physical science, in the field of mineralogy, trained in crystallography, who use only X-rays, applying only the powder technique of X-ray diffraction, to clay minerals only, and who have spent the last fifteen years concentrating on the montmorillonites ; ;

For instance, so-called `` conservative '' organizations, some of them secret, are sprouting in the garden of joining where `` liberal '' organizations once took root.

For that is the one an increasingly large number of prominent Americans are now proposing.

For every person on Taiwan, there are sixty in Mainland China.

Small Business Administration, What It Is, What It Does, SBA Services For Community Economic Development, and various other useful publications on currently important management, technical production, and marketing topics are available, on request, from Small Business Administration, Washington 25, D.C..

For what Sam Rayburn's life in this House teaches us is that loyalty and character are not divisive and there is no such thing as being for your country and neglecting your district.

For those communities which have financial difficulties in effecting adjustments, there are a number of alternatives any one of which alone, or in combination with others, would minimize if not even eliminate the problem.

For the making of selections on the basis of excellence requires that any foundation making the selections shall have available the judgments of a corps of advisors whose judgments are known to be good: such judgments can be known to be good only by the records of those selected, by records made subsequent to their selection over considerable periods of time.

For this concept of an Advisory Board, ancillary to the Board of Trustees, we are indebted to the late President of Harvard University, A. Lawrence Lowell, a master of the subject of the structure of cultural institutions and their administration.

For, in accordance with Mr. Lowell's concept of an advisory board, our selections are made by experienced selectors who give both constancy and consistency to our processes and our choices.

For, granting that there are great present-day problems to be solved, these problems make great demands ; ;

For the maintenance of a long-term program, the departments, and particularly their chairmen, are strategic.

For some time this writer has been suggesting a Junior Judging Class for Intermediates over 16 and under 20 years of age who are ineligible to compete in the Junior Class.

For restoration of early American life the places to visit are Williamsburg, Jamestown and Yorktown, Virginia.

For me, these will belong more completely to their surroundings if they are conceived in this early stage, though I freely admit that I do not hesitate to add or eliminate figures on the full sheet when it serves my final purpose.

For a few details of the system the lines are 1-1/4'' '' X-Tru-Coat, a product of Republic Steel Corp., and all lines are welded.

For specialized types of displays, such as large three-dimensional units reproducing a product, package, human or animal figures, etc., reinforced plastics and rotationally molded vinyl plastisols are other materials frequently used.