What's the difference between monazite and neodymium?
Monazite
Definition:
(n.) A mineral occurring usually in small isolated crystals, -- a phosphate of the cerium metals.
Example Sentences:
(1) The thoron flux from a dry, "infinitely thick" layer of monazite was found to be 41 Bq m-2 s-1.
(2) Gamma radiation levels had a mean value of approximately 40 nSv h-1, and monazite sand returned the highest activity concentrations of 0.16% and 3.4% for 238U and 232Th, respectively.
(3) More extensive work on monazite samples from a number of sites will be necessary before this can be stated as a general conclusion applicable to all Western Australian monazite deposits.
(4) 228Ra and 220Rn (also designated thoron in the paper), were investigated in a typical Western Australia monazite.
(5) The depth of monazite from which thoron is exhaled is limited to 40-50 mm, and within the first 10 mm is a linear function of bed thickness.
(6) The results indicate that secular equilibrium may be assumed when calculating 232Th daughter concentrations in monazite from the gross alpha activity.
(7) In a search for geochemical factors that could play a role in the pathogenesis of tropical endomyocardial fibrosis, endomyocardial tissue samples obtained from patients at necropsy or operation were analysed for major elements present in laterite and monazite, which are important soil constituents of Kerala State of India.
Neodymium
Definition:
(n.) An elementary substance which forms one of the constituents of didymium. Symbol Nd. Atomic weight 140.8.
Example Sentences:
(1) A neodymium YAG (Nd:YAG) laser was evaluated in a dog ulcer model used in the same manner as is recommended for bleeding patients (power 55 W, divergence angle 4 degrees, with CO2 gas-jet assistance).
(2) A randomized study of selective absorption using a neodymium (Nd) YAG laser showed similar efficacy for the different wavelengths although scarring was greater with the Nd-YAG laser.
(3) Moreover, lanthanum itself as well as lanthanides other than cerium, e.g., gadolinium and didymium (praseodymium, neodymium), were successfully applied and can be recommended as capture agents for phosphatase cytochemistry.
(4) Both abscesses were drained transendoscopically by use of a contact neodymium:yttrium aluminum garnet laser.
(5) A neodymium:yttrium aluminum garnet (Nd:YAG) laser was used to study effects of applying laser irradiation transendoscopically to the corniculate process of the arytenoid cartilage in horses.
(6) A neodymium:yttrium-aluminum-garnet (Nd:YAG) laser was used to induce highly reproducible focal cortical lesions in anesthetized rats.
(7) The use of the neodymium:YAG(Nd:YAG) laser in urology in still in its infancy.
(8) The findings with diode and continuous-wave contact neodymium-YAG lasers were similar.
(9) A neodymium iron boron magnet is attached to the unerupted tooth, and a second, larger magnet is incorporated in a removable appliance.
(10) Neodymium-YAG laser therapy for unresectable malignant airway obstructions has a promising future.
(11) Using endoscopic neodymium-YAG laser application permits successful treatment of ulcerated bleeding cancer.
(12) Post-mortem aortic specimens of normal wall, lipomatous and calcified plaques were exposed to both continuous wave lasers (argon, neodymium-YAG 1064 nm) coupled to hot-tipped or sapphire tipped fibres and pulsed lasers (Excimer 193 nm, CO2, erbium-YAG).
(13) The further development of endoscopic instruments has made neodymium-YAG laser irradiation of ureteral tumors possible.
(14) The combination of intraoperative localization of intrarenal arteries by Doppler flowmetry and cutting through renal parenchyma using the neodymium-YAG laser beam was used in 7 patients with stag-horn calculi or recurrent stones.
(15) In view of the low morbidity, cutting and coagulation properties and minimal tissue changes, use of the neodymium:YAG laser would be our first choice of treatment modality.
(16) Removal of the lipoma was achieved with the Neodymium-Yttrium-Aluminum-Garnet (Nd:YAG) laser through a fiberoptic bronchoscope.
(17) Five patients with severe fibrous subglottic and tracheal stenosis were treated by endoscopic radial laser incision and dilation using both carbon dioxide and neodymium:yttrium aluminum garnet lasers.
(18) The records of 271 consecutive patients (373 eyes) who underwent neodymium-YAG laser iridotomy at our institution over a period of 12 months were reviewed.
(19) Malignant esophageal obstruction in 24 patients was treated using the neodymium:ytrium, aluminum, garnet laser.
(20) A technique is described using a neodymium:yttrium-aluminium-garnet (Nd:YAG) laser in combination with a special tracheoscope and high frequency jet ventilation (HFJV).