What's the difference between commutator and periodically?

Commutator


Definition:

  • (n.) A piece of apparatus used for reversing the direction of an electrical current; an attachment to certain electrical machines, by means of which alternating currents are made to be continuous or to have the same direction.

Example Sentences:

  • (1) The lies Trump told this week: from murder rates to climate change Read more “President Obama has commuted the sentences of record numbers of high-level drug traffickers.
  • (2) In an exceptionally rare turn, the Texas Board of Pardons and Paroles, a panel appointed by the governor that is almost always hardline on executions, recommended that his death sentence be commuted to life in prison because of his mental illness.
  • (3) Whether out of fear, indifference or a sense of impotence, the general population has learned to turn away, like commuters speeding by on the freeways to the suburbs, unseeingly passing over the squalor.
  • (4) It also devalues the courage of real whistleblowers who have used proper channels to hold our government accountable.” McCain added: “It is a sad, yet perhaps fitting commentary on President Obama’s failed national security policies that he would commute the sentence of an individual that endangered the lives of American troops, diplomats, and intelligence sources by leaking hundreds of thousands of sensitive government documents to WikiLeaks, a virulently anti-American organisation that was a tool of Russia’s recent interference in our elections.” WikiLeaks last year published emails hacked from the accounts of the Democratic National Committee and John Podesta, chairman of Hillary Clinton’s election campaign.
  • (5) The surface mount electronic internal controller provides motor commutator, energy management, telemetry, and physiologic control functions.
  • (6) The pair woke up early and gathered their birth certificates, social security cards and passports before making the roughly three-hour commute.
  • (7) But Clegg also says he is not going to be cowed into taking Cameron's vow of silence about Farage's assertion that he finds Britain unrecognisable and is uncomfortable at the lack of English spoken on commuter trains out of Charing Cross.
  • (8) Well, news from the commuters and the rail users is that we don't like it, and we want a cheaper more equitable service.
  • (9) Two weeks after the July 7 suicide bomb attacks that killed 52 London commuters and injured more then 750, Shahid, a young Londoner who had just completed his fourth year at medical school, flew to Pakistan .
  • (10) Stephen Joseph, its chief executive said: "This is bitter news for everyone who relies on the train to get to work, not least the large number of commuters in marginal constituencies who will be a key group at the next election."
  • (11) Concluding an inquiry into the experience of rail passengers that became dominated by the events at Southern , the transport select committee said commuters had been badly let down.
  • (12) When you factor in commuting costs, it's not surprising many families decide it doesn't make sense financially for both parents to work.
  • (13) If you are a London commuter dreading tube strike chaos this evening and tomorrow there is an alternative to fighting your way on to overcrowded buses or a long walk.
  • (14) Prenatal care is provided in rural areas by health care people that commute from the cities.
  • (15) Sir Stephen Richards, 59, was arrested by detectives investigating an alleged sexual assault on a commuter service between London Waterloo and Wimbledon in south-west London.
  • (16) Another described First Great Western as " the worst commuter line I've ever had to endure ": "Not only is it the most expensive train line in Europe, it was never on time.
  • (17) Mahaneela Choudhury-Reid, a Londoner of colour, clashed with a smartly dressed commuter during what should have been the mid-morning quiet.
  • (18) Transport for London stepped in with a £750m pledge to prevent meltdown in the public-private partnership for the underground yesterday, as the capital's mayor warned of a "difficult period" for commuters after the tube's biggest maintenance firm entered administration.
  • (19) Potential London escapees will probably be put off by the cost of commuting, as an annual season ticket costs about £5,000, and the knowledge that state schools in London are better, on the whole, although Oxford has a stellar independent sector thanks to the likes of Oxford High School for Girls and Magdalen College School .
  • (20) The commutations are meant to combat the strict mandatory minimum sentences for drug crimes – symbolically, at least – an area where Republicans and Democrats both support reform .

Periodically


Definition:

  • (adv.) In a periodical manner.

Example Sentences:

  • (1) Without medication atypical ventricular tachycardia develops, in the author's opinion, most probably when bradycardia has persisted for a prolonged period.
  • (2) Disease stabilisation was associated with prolonged periods of comparatively high plasma levels of drug, which appeared to be determined primarily by reduced drug clearance.
  • (3) Although the mean values for all hemodynamic variables between the two placebo periods were minimally changed, the differences in individual patients were striking.
  • (4) It was shown in experiments on four dogs by the conditioned method that the period of recovery of conditioned activity after one hour ether anaesthesia tested 7 to 7.5 days.
  • (5) Under blood preservation conditions the difference of the rates of ATP-production and -consumption is the most important factor for a high ATP-level over long periods.
  • (6) No significant change occurred in the bacterial population of our hospital unit during the period of the study (more than 3 years).
  • (7) The secondary leukemia that occurred in these patients could be distinguished from the secondary leukemia that occurs after treatment with alkylating agents by the following: a shorter latency period; a predominance of monocytic or myelomonocytic features; and frequent cytogenetic abnormalities involving 11q23.
  • (8) Sixteen patients in whom schizophrenia was initially diagnosed and who were treated with fluphenazine enanthate or decanoate developed severe depression for a short period after the injection.
  • (9) During the study period four family outbreaks and seven recurrences of infection were observed.
  • (10) After a period on fat-rich diet the patient's physical fitness was increased and the recovery period after the acute load was shorter.
  • (11) During this period he developed autoimmune haemolytic anaemia, a rare complication of myelofibrosis.
  • (12) Pituitary weight, mitotic index and chromosomes were studied in male rats following a single or repeated dose of estradiol-benzoate for a total period of 210 days.
  • (13) Most thyroid hormone actions, however, appear in the perinatal period, and infants with thyroid agenesis appear normal at birth and develop normally with prompt neonatal diagnosis and treatment.
  • (14) Maximal aberration yields were observed for 2,4-diaminotoluene, 2,6-diaminotoluene and cytosine beta-D-arabinofuranoside from 17 to 21 h, eugenol from 15 to 21 h, cadmium sulfate from 15 to 24 h and 2-aminobiphenyl, from 17 to 24 h. For adriamycin at 1 microM, the % aberrant cells remained elevated throughout the period from 9 to 29 h, while small increases at 0.1 microM ADR were found only at 13 and at 25 h. For most chemicals the maximal aberration yield occurred at a different time for each concentration tested.
  • (15) Accuracy of discrimination of letters at various preselected distances was determined each session while Ortho-rater examinations were given periodically throughout training.
  • (16) During electrophysiologic study, the effect of propafenone on the effective refractory period of the accessory pathway was determined, as well as its effect during orthodromic atrioventricular (AV) reentrant tachycardia and atrial fibrillation.
  • (17) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
  • (18) Throughout the period of rehabilitation, the frequent changes of a patient's condition may require a process of ongoing evaluation and appropriate adjustments in the physical therapy program.
  • (19) Anthropometric and nutritional (serum albumin and transferrin) values were normal in both groups both at the beginning and at the end of the treatment period.
  • (20) Analysis of conjugated discharges ACHs showed that they appeared predominantly periodically (87% of cases).