English
Is-serum jirreferi għal-likwidu trasparenti isfar ċar separat mill-plażma wara l-fibrinoġen u xi fatturi tal-koagulazzjoni jitneħħew mill-plażma wara l-koagulazzjoni tad-demm, jew plażma li minnha tneħħa l-fibrinoġen. Fliexken tal-midja għall-ħażna tas-serum huma ġeneralment magħmula minn materjal tal-poliester (PET). X'inhuma l-karatteristiċi ta 'dan il-materjal?
It-temperatura tal-ħażna tas-serum hija ġeneralment -5 °C sa -20 °C, u l-funzjonijiet ewlenin tagħha huma li tipprovdi nutrijenti bażiċi, ormoni u diversi fatturi ta' tkabbir, li jorbtu proteini, fatturi li jippromwovu l-kuntatt u tat-tkabbir biex jipproteġu ċ-ċelloli minn ħsara mekkanika, Ċelloli fil-kultura jipprovdu xi protezzjoni. Il-flixkun tal-midja magħmul mill-PET għandu l-karatteristiċi li ġejjin:
1. Trasparenza għolja u tleqqija tajba;
2. Proprjetajiet mekkaniċi tajbin, is-saħħa tal-impatt hija 3-5 darbiet dik ta 'films oħra, u r-reżistenza tat-tiwi hija tajba;
3. Reżistenza taż-żejt, reżistenza għax-xaħam, aċidu dilwit, alkali dilwit, u l-biċċa l-kbira tas-solventi;
4. Reżistenza tajba għat-tixjiħ tas-sħana, it-temperatura tal-fraġilità hija -70 °C, u għad għandha ċerta toughness f'-30 °C; Il-PET mhuwiex faċli biex jinħaraq, il-fjamma hija safra, u ż-żejt li jaħraq iqattar;
5, mhux tossiku, bla togħma, iġjene u sigurtà tajba, jista 'jintuża direttament għall-ippakkjar tal-ikel;
6. Il-permeabilità tal-gass u l-fwar tal-ilma hija baxxa, u għandha barriera tal-gass eċċellenti, ilma, żejt u proprjetajiet ta 'riħa.
Il-karatteristiċi eċċellenti tal-materjal tal-PET jissodisfaw bis-sħiħ ir-rekwiżiti tal-ħażna tas-serum. Dan il-flixkun tal-midja jista 'jintuża wkoll għal ħażna fit-tul ta' soluzzjonijiet milwiema, bħal mezz ta 'kultura, trypsin, reaġenti, eċċ.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.