Several condensed matter systems are being studied with potential applications to quantum computation, including experimental systems like quantum dots, SQUIDs, and theoretical models like the toric code and the quantum dimer model.

Several competing models, although correctly dealing with the conformation of each individual peptide chain, gave way to the triple-helical " Madras " model, which provided an essentially correct model of the molecule's quaternary structure although this model still required some refinement .< ref > The packing structure of collagen has not been defined to the same degree outside of the fibrillar collagen types, although it has been long known to be hexagonal or quasi-hexagonal.

Several experimental treatments have shown promise in animal models.

Several three-cylinder, two-stroke-cycle models were built while most engines had straight or in-line cylinders.

* Several models of participation are possible: firstly, a model in which the employees form part of the supervisory board or of the administrative board, as the case may be ; secondly, a model in which the employees are represented by a separate body ; and finally, other models to be agreed between the management or administrative boards of the founder companies and the employees or their representatives in those companies, the level of information and consultation being the same as in the case of the second model.

Several models of " simplified English " have been suggested for teaching English as a foreign language:

Several companies were building and selling Lisp Machines in the 1980s: Symbolics ( 3600, 3640, XL1200, MacIvory and other models ), Lisp Machines Incorporated ( LMI Lambda ), Texas Instruments ( Explorer and MicroExplorer ) and Xerox ( InterLisp-D workstations ).

Several computational models of vocabulary acquisition have been proposed so far.

Several models have been proposed for understanding the activities required to manage material movements across organizational and functional boundaries.

Several models of SEM can examine any part of a semiconductor wafer, and some can tilt an object of that size to 45 °.

Several other minor refinements were made to stethoscopes, until in the early 1960s Dr. David Littmann, a Harvard Medical School professor, created a new stethoscope that was lighter than previous models and had improved acoustics.

Several economic models exist for vegetable farms: farms may grow large quantities of a few vegetables and sell them in bulk to major markets or middlemen, which requires large growing operations ; farms may produce for local customers, which requires a larger distribution effort ; farms may produce a variety of vegetables for sale through on-farm stalls, local farmer's markets, u-pick operations.

Several models, both phenomenological and analytical, have been developed to describe the energetics of Auger transitions.

Several previous unsuccessful attempts to unite the colonies were made, with proposed political models ranging from unitary, to loosely federal.

Several models for the origin of gamma-ray bursts postulated that the initial burst of gamma rays should be followed by slowly fading emission at longer wavelengths created by collisions between the burst ejecta and interstellar gas.

Several fashion models who were deemed to commercial and too curvacious were fed up with industry standard and took a different approach.

Several U. S. Navy warship models are on display, and a flight simulator for the new F-35 Lightning II is featured.

Several theoretical models have been developed to explain sensorimotor calibration in terms of synaptic plasticity within the cerebellum.

Several Peugeot models were assembled in Australia, commencing with the 203 in 1953.

Several pornographic actors and glamour models also act as fetish models.

Several boat and ship models were found in the tomb of Tutankhamen, dating to the Sixth Dynasty, and at Meketra ( 2061-2010BC ).

Several models have been created to describe coming out as a process for gay and lesbian identity development, e. g. Dank, 1971 ; Cass, 1984 ; Coleman, 1989 ; Troiden, 1989.

Several such models have been suggested.

Several rating scales for the screening and evaluation of bipolar disorder exist, such as the Bipolar spectrum diagnostic scale.

Several scales exist for measuring the severity of psoriasis.

Several valid and reliable rating scales now exist which can be used to accurately diagnose delirium by trained individuals.

Several scales have been developed in recent years to measure the various factors influencing the development and expression of sexual desire.

Several Wenger and Victorinox models feature a locking cutting blade secured by a slide lock that is operated with an unlocking-button integrated in the scales.

Several techniques have been investigated to prevent this reaction, but few have been successful for long diamond machining processes at mass production scales.

Several non-melodic scales allow the music to wind down to a quiet throb in the orchestra on a dissonant chord, C-A ♭- D.

Several options currently exist for scales that acknowledge at least the two main underlying components in the scale ( aggression / submission and conventionalism ).

Several were firing into the barn when Billy Tilghman arrived.

Several effects were immediately evident.

Several germanium resistors have been thermally cycled from 300 to 4.2 Af and their resistances have been found to be reproducible within 1/3 millidegree when temperatures were derived from a vapor pressure thermometer whose tubing is jacketed through most of the liquid helium.

Several efforts were made in this direction, and though not all of them survive to this day, the Brown & Sharpe wire gage system was eventually adopted as the American standard and is still in common use today.

Several years ago headlines were made by a small radio transmitter capsule which could be swallowed by the patient and which would then radio internal pressure data to external receivers.

Several samples of citrated plasma were fractionated in our laboratory by Method 6 of Cohn et al.

Several New England realtors were invited to participate in a small colloquium of property lawyers, political scientists, economists, social psychologists, social ethicists and theologians.

Several of the movements were given a marked impetus by revivalism.

Several were born in the early decades and persisted throughout the century.

( Several times recently I have wondered whether shows were being staged for the sake of the script or just to entertain the audience with the spectacle of scenery being shifted right in front of their eyes.

Several times it came near breaking, and there were in fact some lovely peals of thunder from Jerry Mulligan's big band, which is about as fine an aggregation as has come along in the jazz business since John Hammond found Count Basie working in a Kansas City trap.

Several photographs and charts of galaxies help the non-scientist keep up with the discussion, and the smooth language indicates the contributors were determined to avoid the jargon that seems to work its way into almost every field.

Several singers of the aurès mountains were inspired by this style as Youcef Boukhantech.

Several existing pieces of music were adapted to the poem.

Several of the dialects have been influenced by contact with non-Germanic linguistic groups, such as the dialect of Carinthia, where in the past many speakers were bilingual with Slovene, and the dialect of Vienna, which has been influenced by immigration during the Austro-Hungarian period, particularly from what is today the Czech Republic.

Several later books were original in Europe, and at least one novel has only ever appeared in Italian, no English version yet published.

Several of Milne's children's poems were set to music by the composer Harold Fraser-Simson.

* Several scenes in the movie, Gaudi Afternoon, were filmed at Casa Milà.

Several editions featuring Newton's first three stanzas and the verse previously included by Harriet Beecher Stowe in Uncle Tom's Cabin were published by Excell between 1900 and 1910, and his version of " Amazing Grace " became the standard form of the song in American churches.

Several of Alexander's works were published in the Aldine edition of Aristotle, Venice, 1495 – 1498 ; his De Fato and De Anima were printed along with the works of Themistius at Venice ( 1534 ); the former work, which has been translated into Latin by Grotius and also by Schulthess, was edited by J. C. Orelli, Zürich, 1824 ; and his commentaries on the Metaphysica by H. Bonitz, Berlin, 1847.

Several engagements took place outside the town and the Romans were eventually victorious.

Several people who spoke to Selkirk after his rescue ( such as Captain Rogers and the journalist Steele ) were impressed by the tranquillity of mind and vigour of the body that Selkirk had attained while on the island.

Several changes were made in regard to the myth, most notably that Perseus did not marry Andromeda after he rescued her from the sea monster.

Several stars in the southern part of Antlia were a portion of " Dong ' ou ", which represented an area in southern China.