Some of this fluorescent light passes through a second filter or monochromator and reaches a detector, which is usually placed at 90 ° to the incident light beam to minimize the risk of transmitted or reflected incident light reaching the detector.

Two monochromators are used in many fluorometers ; one monochromator is used to select the excitation wavelength and a second monochromator is used to analyze the emitted light.

As a result of the illumination, the sample emits light ( it fluoresces ) and a second optical system ( emission system ) collects the emitted light, separates it from the excitation light ( using a filter or monochromator system ), and measures the signal using a light detector such as a photomultiplier tube ( PMT ).

It becomes most evident in his description of Christ as the second Adam, who does indeed come to destroy sin, but whose work culminates in the achievement of immortality.

In the second example CH < sub > 3 </ sub > COOH undergoes the same transformation, in this case donating a proton to ammonia ( NH < sub > 3 </ sub >), but cannot be described using the Arrhenius definition of an acid because the reaction does not produce hydronium.

For a 256-bit block, the first row is unchanged and the shifting for the second, third and fourth row is 1 byte, 3 bytes and 4 bytes respectively — this change only applies for the Rijndael cipher when used with a 256-bit block, as AES does not use 256-bit blocks.

In air, compressibility effects are usually ignored when the Mach number in the flow does not exceed 0. 3 ( about 335 feet ( 102m ) per second or 228 miles ( 366 km ) per hour at 60 ° F ).

If a party has gained more direct mandates in a Land than it is entitled to according to the results of the second vote, it does not forfeit these mandates because all directly elected candidates are guaranteed a seat in the Bundestag.

This technique, famously practiced by Eddie Stanky of the Brooklyn Dodgers, is where the runner does not break immediately for second when the pitcher commits to the plate.

The dealer's hand receives its first card face up, and in " hole card " games receives its second card face down immediately ( the hole card ), which the dealer peeks at but does not reveal unless it makes the dealer's hand a blackjack.

The US version, however, has since 2001 taken on a significantly different format from the others in their second season, with a far stronger emphasis on strategy, competition and voting, where the public does not choose who to evict.

For the second exam, called the Principles and Practices, Part 2, or the Professional Engineering exam, candidates may select a particular engineering discipline's content to be tested on ; there is currently not an option for BME with this, meaning that any biomedical engineers seeking a license must prepare to take this examination in another category ( which does not affect the actual license, since most jurisdictions do not recognize discipline specialties anyway ).

If your side has two aces and a void, then you are not at risk of losing the first two tricks, so long as ( a ) your void is useful ( i. e., does not duplicate the function of an ace that your side holds ) and ( b ) you are not vulnerable to the loss of the first two tricks in the fourth suit ( because, for instance, one of the partnership hands holds a singleton in that suit or the protected king, giving your side second round control ).

Even adding a second execution unit ( see below ) does not improve performance much ; rather than one pathway being hung up, now two pathways are hung up and the number of unused transistors is increased.

At its second reading, if the Parliament approves the text or does not act, the text is adopted, otherwise the Parliament may propose further amendments to the Council's proposal.

The fact that a catalyst does not change the equilibrium is a consequence of the second law of thermodynamics.

The second proof does not need this because showing that the error term vanishes proves the existence of the limit directly.

In matters of marriage and divorce, the State of Israel relies on its Chief Rabbinate to determine who is Jewish ; the Chief Rabbinate, following Orthodox practice, does not recognize the validity of conversions performed by Conservative rabbis and will require a Jew who was converted by a Conservative rabbi to undergo a second, Orthodox conversion to be regarded as a Jew for marriage and other purposes.

Thus, interlaced video captures samples the scene motion twice as often as progressive video does, for the same number of frames per second.

While Duck Hunt does not have a traditional multiplayer mode, the manual states that a second player may plug in a standard NES controller in the other controller port and control the duck that appears.

This article uses the second definition and does not describe porpoises ( suborder Odontoceti, family Phocoenidae ).

" Beauchamp & Davidson also highlight Baruch Brody's " an act of euthanasia is one in which one person ... ( A ) kills another person ( B ) for the benefit of the second person, who actually does benefit from being killed ".

Although this is an independent definition that does not refer to the older basis of ephemeris time, it uses the same quantity as the value of the ephemeris second measured by the cesium clock in 1958.

" On second reading, the reader should realize that " breast " does not carry the general androgynous connotation of " chest " but instead the specific idea of a woman's breasts, which are so attractive that a man of any religion would kiss the Christian cross to be near.

As if to prove that lightning does occasionally strike twice, the second of the ' ones that got away ' came just a year later, the Dons finishing with a lamentable 7. 27 ( of which full forward Bill Brittingham contributed 2. 12 ) to tie with Melbourne ( who managed 10. 9 ) in the 1948 grand final.

If deactivation occurs during the first reading, the reader does not need to undergo deactivation in the second reading.

The first type allows the solid particles, i. e. the residue, to be collected intact ; the second type does not permit this.

He was aware of her as a frightfully good-looking American WAC, a second lieutenant assigned to do the paper work, ( regardless of how important she might have thought she was ) in the Command offices, but that was all.

He must construct transitions so that a dancer who is told to lie prone one second and to leap wildly the next will have some physical preparation for the leap.

There is a second feature of the influences of literature, good literature, on emotional life which may have some special value for our time.

Upon second thought we were forced to realize that we have very few reliable historical benchmarks against which we might compare the present situation, and that conclusions that present-day students are `` more '' or `` less '' religious could not be defended on the basis of our data.

And the second requirement for convincing people without their knowledge is artistic talent to prepare the words and pictures which persuade by using the principles which the scientists have discovered.

Even to be `` from hope and fear set free '' is at least better than to have lost the first without having got rid of the second.

Obviously, if this club is going to move from second to first in the American League, it will have to show improvement someplace.

In the second and third chapters of Revelation the new version retains, however, the old phrase `` angel of the church '' which Biblical scholars have previously interpreted as meaning bishop.

When this second dilemma first became obvious -- during the mid to late '50's -- the United States appeared to have three choices.

The second choice, full testing, has become even more risky just because the current Soviet tests have already dangerously contaminated the atmosphere.

In recognition of the growing trend for second homes, or vacation cottages, we have designed this one specifically with the family handyman in mind.

Adverbial second complements, however, are likely not to have dominant stress when they terminate sentences.

In the Steiners have busy lives without visiting relatives only context can indicate whether visiting relatives is equivalent in meaning to paying visits to relatives or to relatives who are visiting them, and in I looked up the number and I looked up the chimney only the meanings of number and chimney make it clear that up is syntactically a second complement in the first sentence and a preposition followed by its object in the second.

In our own practice, to have the last `` intonaco '' plaster coat thick enough to match, and at the same time to avoid fine cracks in drying, we found that it had to be put on in two layers, letting the first set awhile before applying the second.

( Metal data will not be included in the second edition, since these have been collected independently by W. B. Pearson, National Research Council, Ottawa, and published as A handbook of lattice spacings and structures of metals and alloys by Pergamon Press.

The second edition should have greater uniformity.

For the second we might have to choose the volume of reactor or amount of cooling to be supplied ; ;

If baby teeth are retained too long, the incoming second teeth may be prevented from emerging at the normal time or may have to erupt in the wrong place.

With the second murder over, he could have left, hidden the weapon in some vacant lot or an abandoned cistern in the neighborhood.

The congressman who, in Paris, may have stuffed his wallet with enough franc notes to paper the roof of Notre-Dame will systematically scream that a $200 increase in entertainment allowance for a second secretary is tantamount to debauchery of the Treasury.

Brakes howled and a horn blared furiously, but the man would have been hit if Phil hadn't called out to him a second before.

It will be the second time the assistant manager of a Coral Gables restaurant and his wife have taken part in the twice-a-year ceremonies for families with new babies.

The existing reverence for Centrality must have been still further stimulated toward the close of the second century B.C., when the Han Emperor Wu Ti ordered the dynastic color changed to yellow -- which symbolized the Center among the traditional Five Directions -- and took 5 as the dynastic number, believing that he would thus place himself, his imperial family, and the nation under the most auspicious influences.

The specific instance I have in mind is the Afro-Asian version which has gained prominence only in this second half of the twentieth century.