What's the difference between bracket and shelf?

Bracket


Definition:

  • (n.) An architectural member, plain or ornamental, projecting from a wall or pier, to support weight falling outside of the same; also, a decorative feature seeming to discharge such an office.
  • (n.) A piece or combination of pieces, usually triangular in general shape, projecting from, or fastened to, a wall, or other surface, to support heavy bodies or to strengthen angles.
  • (n.) A shot, crooked timber, resembling a knee, used as a support.
  • (n.) The cheek or side of an ordnance carriage.
  • (n.) One of two characters [], used to inclose a reference, explanation, or note, or a part to be excluded from a sentence, to indicate an interpolation, to rectify a mistake, or to supply an omission, and for certain other purposes; -- called also crotchet.
  • (n.) A gas fixture or lamp holder projecting from the face of a wall, column, or the like.
  • (v. t.) To place within brackets; to connect by brackets; to furnish with brackets.

Example Sentences:

  • (1) The solution to these problems would seem either to reduce the time spent in rectangular wires or to change to a bracket with reduced torque, together with appropriate second order compensations in the archwire or the bracket.
  • (2) In 1:1 saturated complexes with the octamers [d(GGATATCC)]2 and [d(GGTTAACC)]2, [N-MeCys3,N-MeCys7]TANDEM binds to each octamer as a bis-intercalator bracketing the TpA step.
  • (3) Simply lengthening the working age bracket is a potential disaster, unless the inequalities at the heart of the policy are addressed in a detailed and sensible way and we achieve full employment.
  • (4) When either predictability or bond strength was considered independently, several bracket systems, coupled with a particular etch time, had either high predictability or high bond strength.
  • (5) The plaque situation around the brackets and along the gingival margins and the gingival condition were assessed according to the criteria of the plaque and gingival index systems by a dental hygienist at each monthly visit during a test period of 6 months.
  • (6) When pseudorabies virus (PrV) strains are grown in chicken embryo fibroblasts (CEF), variants ("translocation" mutants) arise in which there is a duplication of the leftmost sequences of the genome and their translocation in inverted orientation next to the internal inverted repeat bracketing the S component.
  • (7) In 2010 there were 2,525 City workers with in the €1m-plus pay bracket with average pay of €2.3m and with a much higher ratio, 611% of variable pay to fixed salary.
  • (8) The results showed that moment-to-force values at the bracket level for translation of a tooth decreased with shorter root length and increased with lower alveolar bone height.
  • (9) The bracket junction is compared with the vertebrate gap junction in terms of both structure and possible roles in facilitating the permeation of the cell by small molecules.
  • (10) Thirty-seven patients entered the trial, and a total of 407 brackets were placed.
  • (11) The purpose of this in vitro study was to determine the tensile bond strengths (TBS) of several orthodontic bonding systems and orthodontic brackets to enamel surfaces exposed to different etching procedures.
  • (12) A pulsed Nd:YAG laser was used to etch the enamel surfaces of teeth in vivo prior to the bonding of orthodontic brackets with composite resin.
  • (13) 6) The strongest bond strength between bracket and etched enamel was obtained with the direct-bonding adhesive containing 2SEM under all conditions.
  • (14) The frequencies of 80 HLA antigen phenotypes in 82 centenarians and 20 nonagenarians in Okinawa, Japan, were compared with those in other healthy adults in various age-brackets.
  • (15) Only three brackets were lost during the experiment.
  • (16) The tensile bond strength of bracket bases coated with metal plasma were examined.
  • (17) They certainly aren't anywhere near the middle, as only 14% of earners hit the 40% bracket.
  • (18) The surface features of incipient caries lesions around bonded orthodontic brackets were assessed longitudinally.
  • (19) For the point of no-net-flux method, animals were perfused with 4 concentrations of DA or DOPAC, bracketing the extracellular concentrations.
  • (20) Inherent defects seen in the morphology of polycrystalline ceramic brackets severely limit their fracture strength.

Shelf


Definition:

  • (v. i.) A flat tablet or ledge of any material set horizontally at a distance from the floor, to hold objects of use or ornament.
  • (v. i.) A sand bank in the sea, or a rock, or ledge of rocks, rendering the water shallow, and dangerous to ships.
  • (v. i.) A stratum lying in a very even manner; a flat, projecting layer of rock.
  • (v. i.) A piece of timber running the whole length of a vessel inside the timberheads.

Example Sentences:

  • (1) Since he was created, he has appeared at several robotic fairs across China, but spends most of his time in deep meditation on an office shelf in Longquan.
  • (2) Matches on the NDCD tape could be found for 80% of the items in the shelf stock sample and 69.5% of the items in the tape supplied by the wholesaler.
  • (3) The development of the hydrogelic occlusive device called the P-block is described including developmental steps of the design of the device as well as the experience gained concerning the hydrogel of the device, shelf life, animal and human toxicology, insertion techniques, analgesia, check-up for retention in situ, actual efficacy of the method, mode of action of the device, complication rates, patient acceptance, continuation rates, possible reversibility and future perspectives of the method.
  • (4) Formulation often has a dramatic effect on degradation of proteins during the freeze-drying process as well as impacting on the "shelf-life" stability of the freeze-dried product.
  • (5) The determination of potency or shelf life, impurity limit testing, and study of reaction mechanisms are considered as different aspects of drug stability.
  • (6) Patterns of HA distribution in anterior, posterior and presumptive soft palate were examined in the secondary palatal shelves of CD-1 mouse fetuses that were 30, 24 and 18 h prior to, and at the time of, shelf reorientation.
  • (7) Another pint of Guinness That evening we set out again, this time to O'Donoghue's in Fanore, a blue-painted stone pub set on the thin shelf of land between the sea and the great limestone mountain that is called the Burren.
  • (8) The absence of membrane proteins and chemical stability of SFH and phospholipids promises long shelf-life.
  • (9) So, they start to create these almost fictitious things they can sell, whether it’s a prime shelf [at the height a shopper is most likely to see] or a gondola end [the promotional buckets often found at the top of the aisle].
  • (10) Midline epithelial cells cease DNA synthesis 24-36 h before shelf elevation and contact, become active in the synthesis of cell surface glycoproteins, and subsequently manifest morphological signs of necrosis.
  • (11) It has been suggested that head posture changes, tongue movements and jaw opening reflexes are required to enable palatal shelf elevation to occur in normal cranio-facial development.
  • (12) Allografts are often freeze dried to increase shelf storage time and sterilized with ethylene oxide.
  • (13) The shelf procedure provides a buttress of bone for later reconstructive surgery such as cup or total hip arthroplasty.
  • (14) When tested in another task (recovering food pellets from a horizontal shelf accessible through a narrow slit below the ceiling of the test box) same rats displayed identical (45%) and opposite (15%) preference or were ambidextrous (40%).
  • (15) In one case this was a dense shelf-like mass of echoes extending downward from the basal portion of the interventricular septum toward the mid-portion of the anterior mitral leaflet with corresponding systolic anterior motion of the mitral leaflet.
  • (16) Eight brands of composite resin, including paste-paste, powder-liquid and light-activated systems, as well as three glass ionomer cements were evaluated over a period of twelve months with respect to shelf-life and suitability for use in a tropical environment.
  • (17) They know that you're just going to buy everything from Amazon now, so they've all cut their losses and stacked every shelf with a trillion different 50 Shades Of Grey knock-offs called things like Disciplined With Buttplugs and 20 Carat Strumpet.
  • (18) The shelf life of the solid phase presensitized with monoclonal antibodies was 4 mth at -15 degrees C. DEN prototype viruses were still identified after storage at -15 degrees C for 1 yr or at room temperature for 1 mth.
  • (19) There are now standard off-the-shelf products that provide the kind of digital production tools that simply didn't exist five years ago.
  • (20) It is concluded that the shelf life of iced whole cod can be predicted using this model but not that of vacuum-packed fillets because of the greater variability of bacterial activity in packaged fish.