(n.) Any large piece of timber or iron long in proportion to its thickness, and prepared for use.
(n.) One of the principal horizontal timbers of a building or ship.
(n.) The width of a vessel; as, one vessel is said to have more beam than another.
(n.) The bar of a balance, from the ends of which the scales are suspended.
(n.) The principal stem or horn of a stag or other deer, which bears the antlers, or branches.
(n.) The pole of a carriage.
(n.) A cylinder of wood, making part of a loom, on which weavers wind the warp before weaving; also, the cylinder on which the cloth is rolled, as it is woven; one being called the fore beam, the other the back beam.
(n.) The straight part or shank of an anchor.
(n.) The main part of a plow, to which the handles and colter are secured, and to the end of which are attached the oxen or horses that draw it.
(n.) A heavy iron lever having an oscillating motion on a central axis, one end of which is connected with the piston rod from which it receives motion, and the other with the crank of the wheel shaft; -- called also working beam or walking beam.
(n.) A ray or collection of parallel rays emitted from the sun or other luminous body; as, a beam of light, or of heat.
(n.) Fig.: A ray; a gleam; as, a beam of comfort.
(n.) One of the long feathers in the wing of a hawk; -- called also beam feather.
(v. t.) To send forth; to emit; -- followed ordinarily by forth; as, to beam forth light.
(v. i.) To emit beams of light.
Example Sentences:
(1) An argon laser beam was used to irradiate the round window in 17 guinea pigs.
(2) Streaming is shown to occur in water in the focused beams produced by a number of medical pulse-echo devices.
(3) 11 patients with a postoperative classification of stage D had additional external beam radiation to the pelvic and paraaortic lymph nodes with shielding of the implanted prostatic region.
(4) The data collection scheme for the scanner uses multiple rotations of a linearly shifted, asymmetric fan beam permitting user-defined variable resolution.
(5) The scatter measurement was made using a standard imaging geometry with both beam stops and an additional x-ray detector placed behind the standard imaging detector.
(6) In an effort to decrease the treatment time for this technique, the flattening filter has been removed from an AECL Therac-6 linear accelerator and the characteristics of the resulting beam have been measured.
(7) Comparative clinical studies on temporomandibular joints (TMJ) between the LEGP and fan beam collimators also confirm the superior image quality obtained with the fan beam collimator.
(8) The special advantage of the UV-beam is that it allow to inactivate selectively of the particular elements of nuclear apparatus of living ciliates is to observe consequences of operation on distant descendants of irradiated cell.
(9) Three-five days after endoscopic laser destruction long-distance open-field gamma-beam therapy was administered to 10 patients and polychemotherapy to 9 of these.
(10) Guidelines for external beam treatment have been set forth in the ASTRO Newsletter.
(11) In work to determine whether X-radiation could be used to induce tumors of the colon in outbred Holtzman rats, a technique was devised so that only the descending colon could be irradiated with a collimated X-ray beam and tumorigenic exposures in the kilo-Roentgen range were delivered.
(12) Nevertheless some technical variations are required, to maintain the typical homogeneity of photon beams.
(13) The RBEs of fast neutron, thermal neutron beams, and neutron capture therapy relative to 60Co gamma-ray were calculated as 2.78, 4.18, and 6.15 at 0.1 surviving fraction, respectively.
(14) Some patients received postoperative external beam irradiation (2000 cGy whole pelvis and an additional 3000 cGy to the parametria, with a midline stepwedge) when deep myometrial invasion was present.
(15) Between 1981 and 1985, 20 patients with malignancy-associated ureteral obstruction (MAUO) were given external beam irradiation with a palliative intent.
(16) Finally, the question of oncogenic effects raised with 193 nm laser beams does not seem to apply to the 308 nm wavelength.
(17) Hence the laser beam acts as a fixation target and measuring beam.
(18) Electron beam therapy is usually employed for the treatment of tumours located at or near the surface of the body, because the electron beam gives a high dose near the surface, but falls off rapidly with increasing depth beyond the level of the 80% depth dose.
(19) By embedding the biopsy in the acrylic resin LR White, unsupported sections of which are stable in the electron beam, light and electron microscopy and immunocytochemistry become feasible on sections from the same block.
(20) Real 60Co beams contain lower energy components; in addition, Awall is defined differently by different authors.
Thwart
Definition:
(a.) Situated or placed across something else; transverse; oblique.
(a.) Fig.: Perverse; crossgrained.
(a.) Thwartly; obliquely; transversely; athwart.
(prep.) Across; athwart.
(n.) A seat in an open boat reaching from one side to the other, or athwart the boat.
(v. t.) To move across or counter to; to cross; as, an arrow thwarts the air.
(v. t.) To cross, as a purpose; to oppose; to run counter to; to contravene; hence, to frustrate or defeat.
(v. i.) To move or go in an oblique or crosswise manner.
(v. i.) Hence, to be in opposition; to clash.
Example Sentences:
(1) The disappointing weather at Easter left beaches deserted but some Britons, who were determined to enjoy the outdoors this time round, have already had their plans thwarted by the weather, taking to websites such as ukcampsite.co.uk to swap tales of woe, such as farmers calling to cancel bookings because sites were waterlogged.
(2) Bryan Hopkins Sheffield • David Cameron says he wants to tackle segregation between schools ( Four steps to thwart creation of ‘a barbaric realm’ , 21 July).
(3) As for the speaker in parliament Thura Shwe Mann, a former general, he has formed an improbable alliance with Aung San Suu Kyi, on the assumption that she might help him thwart the plans of his former cronies.
(4) In the recent local and European parliament elections, Labour gained 300 councillors and boosted its number of MEPs, but saw Ukip thwart its progress in key target areas, make gains in traditional party heartlands and top the European poll.
(5) But concerns about a slowing economy, jobs, civil rights and a lack of progress in the Kurdish peace process appear to have combined with worries that Erdoğan could assume quasi-dictatorial powers to thwart the president’s ambitions.
(6) A standoff between the two houses of parliament threatens to thwart a government-backed crackdown on multinational tax avoidance and a Labor-backed plan to increase tax transparency.
(7) So President Mujica may be thinking: "why not take the risk and embrace the possibility of becoming the first marijuana hero and the man who thwarted drug dealers?"
(8) The cataractogenic effect of oxyradicals, however, can be thwarted by nutritional and metabolic antioxidants such as ascorbate, vitamin E, and pyruvate.
(9) However, the over-riding view is that with Global's plan to buy GMG Radio outright all but thwarted, senior executives at German-owned Bauer will be breathing a sigh of relief.
(10) Experts say there are other arms of the federal octopus that could be squeezed in a bid to thwart Obama’s deferred action schemes, but even that would not affect the directive that tells immigration officials to focus on deporting “felons, not families”.
(11) The solution is for Hathaway to spend a year in sarky Manchester, where her attempts to go jogging will be thwarted by 324 days of rain, and if she so much as thinks about telling a Mancunian barmaid that she has poured those lagers fantastically well, she will swiftly learn an aloofness not taught in any American drama school.
(12) The report finds the company "deliberately" tried to "thwart" the 2005-6 Metropolitan police investigation into phone hacking carried out by the tabloid.
(13) But imperial Britain was not thwarted in any of these wars – however questionable we may now judge those conflicts to have been.
(14) This year the weather has tended to thwart these hopes, although after "the summer of sport" we might all need a break.
(15) Qerdaha is the heart of Alawite Syria , a hub for senior army officers and Shabiha, the pro-Assad militia accused of tremendous brutality in their three-year campaign to thwart the rebel uprising.
(16) 1.44am BST Rangers 2-1 Kings, 12:50, 2nd period Lewis stick handles towards the net but is thwarted by McDonagh, who is all over the place this game.
(17) The secret vote was an attempt to thwart the bill before it is put to a general vote.
(18) Part of the problem is procedural: that the will of the church’s parliament, the General Synod, is easily thwarted by a tiny minority of its members.
(19) Chloro substituents in the ring of other methoxylated benzoic acids also arrested their normal metabolism by the Nocardia: an ortho-chloro substituent thwarted both demethylation and ring-opening.
(20) The Liberal Democrat input is the second time they have helped thwart Gove's policies.