Apr 11 11:42
7 mos ago
11 viewers *
English term

low brake

English to Polish Science Medical: Pharmaceuticals badania krwi
A patient sample that was stored (12 – 72 hours), should be washed three times using 1x reagent D (3 x 2 mL at 300 g for 3 minutes, low brake) before starting the tests.

Cord and adult blood should always be washed three times using 1x reagent D (3 x 2 mL at 300 g for 3 minutes, low brake) before spiking and the start of the staining procedure.

Discussion

geopiet Apr 11:
Most small benchtop centrifuges also enable the user to switch between a normal brake and a soft/slow brake.

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When the brake is shut off, the centrifuge simply runs down until the rotor stops by itself. This way, the gradient will not be disturbed by sudden braking.


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.. we recommend lowering the deceleration ramp (usually it is not necessary to shut off the brake completely) to keep the pellet from swirling up.

- https://handling-solutions.eppendorf.com/sample-handling/cen...
geopiet Apr 11:
wygrzebałem „łagodny” i „delikatny” czas zatrzymania silnika wirówki ...
geopiet Apr 11:
. At the speed of 800 rpm, the mass inertia moment was 466 Nm. In the second braking phase, the speed was further reduced to about 70 rpm from 800 rpm, corresponding to a reduction in mass inertia moment to about 3.6 Nm. The time for the second braking phase again was about 45 seconds. When the low, minimum braking speed was reached, in the example about 70 rpm, current supply from source 3 was interrupted, for example by opening of a relay terminal 12a, permitting the rotor to coast to a stop. The free coasting time was about 30 seconds.

- https://patents.google.com/patent/US4241866A/en
geopiet Apr 11:
być może jest to „czas hamowania” .. ? Stopień 9 = najkrótszy czas hamowania, ... stopień 1 = długi czas hamowania, stopień 0 = zatrzymanie bez hamowania.

- https://www.hettichlab.com/fileadmin/user_upload/hettichlab.... - page 20

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Level 9 = shortest ramp-down time, ...Level 1 = long ramp-down time, Level 0 = unbraked ramp-down.

- https://www.hettichlab.com/downloadcenter/Products/Manuals/R... - page 19

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do wyboru 9 trybów rozpędzania i hamowania lub niehamowany czas zatrzymania,
geopiet Apr 11:
Centrifuge the PRP at 2,200 x g for 12 min (for 5 mL PRP). NOTE: This centrifugation step should be performed with low brake or without brake.

- https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5564473/

Proposed translations

+1
1 hr
Selected

powolne wyhamowanie

.
Peer comment(s):

agree Andrzej Mierzejewski : Chyba tak.
19 hrs
dziękuję
Something went wrong...
4 KudoZ points awarded for this answer.
-1
27 mins

na niskich obrotach

odwirowanie próbki „na niskich obrotach ” ... ?

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Note added at 30 mins (2024-04-11 12:12:16 GMT)
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Centrifuge the collection tubes at 300 x g at room temperature (20°C to. 25°C) for 10 minutes with the low brake on. - https://sanguinebio.com/wp-content/uploads/2023/12/Whole-Blo... - page 2

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Note added at 38 mins (2024-04-11 12:20:37 GMT)
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The centrifuge brake setting is the other crucial parameter that greatly influences yield and purity. Rapid braking may cause rotational turbulence inside the tube during centrifuge slow down, causing cells to be washed off the pellet into the supernatant. This problem is more pronounced with wider centrifuge tubes, or when the tube is half full. Old centrifuges with a simple on-off brake setting should always have the brake off. Centrifuges with a high/low/off brake setting range may also have to be used in the off mode if the low brake speed is too fast. Centrifuges with a 1 to 10 scale of braking should be used with the brake set on 2 or less. The brake should always be off for the Ficoll spin.

- https://cdn.ach2.org.au/uploads/2020/08/IVRN_Lab_Manual_Upda... - page 7
Peer comment(s):

disagree Andrzej Mierzejewski : Przyspieszenie dośrodkowe: 300 x g = 3000 m/s2 oznacza bardzo wysokie obroty, nawet kilkanaście tysięcy na minutę,
21 hrs
niefortunne sformułowanie z mojej strony, mia łem na myśli „powolne”, czyli takie „przedłużone” zwalnianie
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2 hrs

niski poziom zwalniania/hamowania

wybierz poziom hamowania (0-9)
poziom hamowania (brake) 0 odpowiada swobodnemu zwalnianiu

https://www.eppendorf.com/product-media/doc/pl/174046/Eppend...



Most of the larger benchtop centrifuges on the market as well as some small benchtop centrifuges offer what are called acceleration and deceleration (braking) ramps. Most small benchtop centrifuges also enable the user to switch between a normal brake and a soft/slow brake.
https://handling-solutions.eppendorf.com/fileadmin/user_uplo...
https://handling-solutions.eppendorf.com/sample-handling/cen...
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