The alpha, beta, delta, epsilon sections are monophyletic, bar the Gammaproteobacteria due to the Acidithiobacillus genus is paraphyletic to Betaproteobacteria, according to multigenome alignment studies, which if done correctly are more precise than 16S ( note that Mariprofundus ferrooxydans sole member of the Zetaproteobacteria was previously misclassified on NCBI taxonomy ).

While flexible units offer some movement and give between the shafts, rigid couplings are the most effective choice for precise alignment and secure hold.

Rigid couplings are used when precise shaft alignment is required ; shaft misalignment will affect the coupling's performance as well as its life.

Due to the extremely precise alignment required for dot alignment between NLQ passes, typically the paper needed to be held somewhat taut in the tractor feed sprockets, and the continuous paper stack must perfectly aligned behind or below the printer.

c is a compensating plate so that both the reflected and transmitted beams travel through the same amount of glass ( important since experiments were run with white light which has an extremely short coherence length requiring precise matching of optical path lengths for fringes to be visible ; monochromatic sodium light was used only for initial alignment ).

Whatever the case, Hackworth was probably the first of the very few engineers throughout history to fully take into account the role of the blast in automatically realising the " perfect equilibrium between steam production and usage " in a locomotive when fitted with a firetube boiler, and to consider the blastpipe as a distinct device, paying close attention to its proportions, nozzle size, positioning and precise alignment.

This alignment is too precise to be widely considered to be formed by chance.

The solar alignment at Newgrange is very precise compared to similar phenomena at other passage graves such as Dowth or Maes Howe in the Orkney islands, off the coast of Scotland.

Iyengar Yoga is characterized by great attention to detail and precise focus on body alignment.

* Very long accelerators may maintain a precise alignment of their components through the use of servo systems guided by a laser beam.

One precise definition which expresses the generally accepted meaning of " alignment " as:

It included faster and more precise editing, real-time clip stretching, automatic speech alignment, EUCON and Mackie control surface support, parameter automation, more powerful pitch correction, HD video playback, new effects ; and more features.

The crew members also checked out the Advanced Space Vision System, a precise alignment system for the robot arm that was tested on STS-74.

Warp threads are adjusted for the desired alignment for precise motifs.

The organ barrels must be sturdy to maintain precise alignment over time, since they play the same programming role as music rolls and have to endure significant mechanical strain.

Patridge sights consisting of a square or rectangular post and a flat-bottomed square notch are the most common form of open sights and are preferred for target shooting, as the majority of shooters find the vertical alignment is more precise than other open sights.

In optical systems, especially those involving interferometry, the alignment of each component must be extremely accurate — precise down to a fraction of a wavelength — usually a few hundred nanometers.

Within the meter, two figure " 8 " shaped lobes, the rotors ( also known as impellers or pistons ), spin in precise alignment.

In principle the precise placement of the new unit onto the prepared pad array requires a highly accurate vision alignment system with high resolution and magnification which is controlled by a skilled operator.

Without the precise, angstrom-level alignment of the three slices, the interference results would not be meaningful.

In practice, because the alignment needed is so precise and difficult to predict, microlensing is very rare.

Manufacturing is also more difficult, as precise alignment of the flat sides of the winding must be maintained ( some rotation of the winding on roundwound strings is acceptable ). 400px

The shared components tend to perform quite fundamental tasks, such as designating that cells will be used to create the minerals, whereas genes controlling more finely tuned aspects that occur later in the biomineralization process – such as the precise alignment and structure of the crystals produced – tend to be uniquely evolved in different lineages.

Sensibility is a vague word, covering an area of meaning rather than any precise talent, quality, or skill.

Without a precise knowledge of Germanic philology, however, it is debatable whether their use was not more often a source of confusion and error than anything else.

This, naturally, will be difficult to do since both the archaeological and place-name evidence in this period, with some fortunate exceptions, is insufficient for precise chronological purposes.

I have said before how difficult it is to make any precise statements with regard to the character of the Greek and Elizabethan public.

therefore, only with precise foreknowledge of the line frequencies is an astronomical search for the radio spectra of these molecules feasible.

It is equipped with electronic controls that can be set to hold precise tension and speed.

One species is restricted to statements which are neither explicit nor precise regarding a particular person, place, time or thing.

The precise mechanism for organification of iodine in the thyroid is not as yet completely understood.

Uncertainty overcoming itself is the precondition of the quest for new and more precise information about the world.

The underlying assumption, of course, is that only sight and touch enable us, in any precise and fully dependable way, to locate objects in space beyond us, the other senses being decidedly inferior, if not totally inadequate, in this regard.

if it is somber, it is also precise, and the precision lends authority to the vision.

In continuation of these theoretical studies, a more precise elucidation of the effects of imperfections in network structure is sought.

Because an algorithm is a precise list of precise steps, the order of computation will always be critical to the functioning of the algorithm.

So to be precise the following is really Nicomachus ' algorithm.

Fossil evidence of the Asterales is rare and belongs to rather recent epochs, so the precise estimation of the order's age is quite difficult.

Korean is copiously attested from the mid-15th century on in the phonetically precise Hangul system of writing ( ib.

A consequence of using waveforms to describe particles is that it is mathematically impossible to obtain precise values for both the position and momentum of a particle at the same time ; this became known as the uncertainty principle, formulated by Werner Heisenberg in 1926.

:" It is the misfortune of small, precise men always to hanker after large and flamboyant women.

The precise nature of the origin of this urn is matter of dispute.

Astrometry is the branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies.

Like the earlier catalogs of Hipparchus and Ptolemy, Ulugh Beg's catalogue is estimated to have been precise to within approximately 20 minutes of arc.