What's the difference between concentrator and hub?
Concentrator
Definition:
(n.) An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.
Example Sentences:
(1) In each sheep there was a significant negative correlation between the glucose and corticosteroid concentrations in both maternal and fetal plasma, and there were positive correlations between the maternal and fetal plasma concentrations of glucose, and between the glucose and fructose concentrations of fetal plasma.
(2) Synthesis of choline esterase on the medium with acetylcholine at a concentration of 1% was increased more than twofold upon addition of glucose at a concentration of 0.1%.
(3) Steady-state values of cell, glucose, and cellulase concentration oxygen tension, and outlet gas oxygen partial pressure were recorded.
(4) Patient plasma samples demonstrated evidence of marked complement activation, with 3-fold elevations of C3a desArg concentrations by the 8th day of therapy.
(5) Arachidic acid was without effect, while linoleic acid and linolenic acid were (on a concentration basis) at least 5-times less active than arachidonic acid.
(6) The fraction of the viral dose which became cell associated was independent of the incubation temperature and increased with increasing target membrane concentration.
(7) Maximum increases in portal plasma secretin concentrations of 143, 146 and 190% and maximum increases in VIP of 116, 155 and 147% after, respectively, intraduodenal 0.1 M NaHCO3, 0.1 M Na2CO3, and 0.025 M NaOH were found.
(8) ), the concentration of AMPO in the hypothalamus was 5.4 times the concentration at 20 h after one injection.
(9) In cardiac tissue the adenylate system is not a good indicator of the energy state of the mitochondrion, even when the concentrations of AMP and free cytosolic ADP are calculated from the adenylate kinase and creatine kinase equilibria.
(10) We similarly evaluated the ability of other phospholipids to form stable foam at various concentrations and ethanol volume fractions and found: bovine brain sphingomyelin greater than dipalmitoyl 3-sn-phosphatidylcholine greater than egg sphingomyelin greater than egg lecithin greater than phosphatidylglycerol.
(11) Cyclic AMP stimulated phosphorylation by [gamma-32P]ATP of two proteins of apparent Mr = 20,000 and 7,000 that were concentrated in sarcoplasmic reticulum, but the stimulation was markedly dependent on the presence of added soluble cyclic AMP-dependent protein kinase.
(12) We conclude that the SHBG concentration strongly affects this estimation.
(13) Ursodeoxycholate was the only dihydroxy bile salt which was able to solubilize phospholipid (although not cholesterol) below the critical micellar concentration.
(14) The fluctuations in [Ca2+]i measured with fura-2 were synchronized among the population of cells observed and were sensitive to extracellular Ca2+ concentration ([Ca2+]o).
(15) The observed relationship between prorenin and renin substrate concentrations might be a consequence of their regulation by common factors.
(16) In the presence of insulin, a qualitatively similar pattern of increasing responses to albumin is observed; the enhancement of each response by insulin is, however, only slightly potentiated by higher albumin concentrations.
(17) We maximize an objective function that includes both total production rate and product concentration.
(18) The procedure used in our laboratory was not able to provide accurate determination of the concentrations of these binding forms.
(19) Thus adrenaline, via pre- and post-junctional adrenoceptors, may contribute to enhanced vascular smooth muscle contraction, which most likely is sensitized by the elevated intracellular calcium concentration.
(20) The specific activities of extracts from cells grown under phototrophic and aerobic conditions were similar and not affected by the concentration of iron in the growth media.
Hub
Definition:
(n.) The central part, usually cylindrical, of a wheel; the nave. See Illust. of Axle box.
(n.) The hilt of a weapon.
(n.) A rough protuberance or projecting obstruction; as, a hub in the road. [U.S.] See Hubby.
(n.) A goal or mark at which quoits, etc., are cast.
(n.) A hardened, engraved steel punch for impressing a device upon a die, used in coining, etc.
(n.) A screw hob. See Hob, 3.
(n.) A block for scotching a wheel.
Example Sentences:
(1) Heathrow, likewise, said Gatwick's new runway would not solve the issue of hub capacity.
(2) It recognises the diverse needs of the affected populations”, said Scott DiPretoro, who works in the IFRC’s Panama hub.
(3) Both initiatives, which are still being developed, have been well-received by Jakarta governor Basuki Tjahaja Purnama, who says they could help get more people from their homes to public transport hubs and has offered technical support.
(4) Thirty (56.6%) had external origin (semiquantitative skin culture positive), 12 (22.6%) had an internal origin (semiquantitative hub culture positive), and 8 (15.1%) had both origins.
(5) Martin Frobisher, the area director for Network Rail, said: "The Northern Hub and electrification programme is the biggest investment in the railway in the north of England for a generation and will transform rail travel for millions of passengers every year."
(6) The proximal extension tubing minimizes manipulation of the hub of the needle, which may lead to dislodgement of the needle, and permits a sampling port with minimal dead space between it and the fetal circulation.
(7) Locally brokered ceasefires have taken effect elsewhere in Syria in recent months, notably in the Moadimeyah district of Damascus, which was also once a hub of opposition control.
(8) The BBC will then work with the developers Stanhope on a three-year project to turn TV Centre into a new creative hub where the corporation will retain a studio presence alongside planned residential, office and leisure premises.
(9) To check the Hub while in an app, you use your thumb to swipe the screen from left to right, and can "peek" at the Hub's inbox.
(10) But others point out that Freeh and Clinton were in well-publicised dispute for most of the president's time in office and that Miami is the main transport hub for most countries in the Caribbean, and so the most obvious venue for the interviews.
(11) The King's Fund's Time to Think Differently campaign highlighted the importance of the home – not the hospital or care home – as the primary hub of care.
(12) Kristen Woolf, girl-centred practice and strategy director, The Girl Hub , London, UK, @girleffect Don't lose focus on girls: Very clearly men and boys have got to be a central component of the solution, but we need to tread carefully here not to lose the focus on equality and empowerment for girls and women.
(13) Migration has turned a sleepy town with a population of 31,000 in 1872 into today's megacity of 21 million, the ninth-biggest city in the world and South America's wealthiest and most important economic hub.
(14) As Cook put it: “From our point of view, the time for inaction has passed.” The values-led business hub is funded by SC Johnson.
(15) Already, the growing hub is surrounded by five-star hotels and hundreds of luxury villa and apartments.
(16) In this life,” he said, smiling, “you have to make some money.” He then spelled out the cartel’s proposition: it would pay Sirleaf handsomely in exchange for his help in using Liberia as a transit hub for smuggling cocaine from Colombia into Europe.
(17) Photograph: Rozena Crossman Despite its small size, the café has a lighter and more modern atmosphere than the cramped bookshop next door, a famous hub for influential writers.
(18) As Chambers's lawyers pointed out, he was not attempting to close down a public transport hub but urging it to resume normal working operations.
(19) Ofcom has already moved to allow more regional hubs for local commercial radio, relax local programming quotas, and encourage digital stations.
(20) "And with the help of the council we're looking to increase the number of hubs and bikes so we've got most of the city covered.