English
Cellulae culturae ampullascommuniter sunt consumables in minima cellula culturae. Ut observatione incrementi cellae condiciones faciliorem reddant, polystyrenae materiae cum superiore diaphano generatim ad hanc consumabilem seliguntur. Quaenam sunt igitur notae huius materiae?
Polystyrene refertur ad polymer a styrene monomer perstringitur per radicalem additionem polymerizationem. Thermoplastica est hyalina et diaphana cum notis sequentibus:
1. Mechanicae proprietates
Polystyrenae moleculae et eorum aggregata structura decernunt esse materias rigidas et fragiles, quae fragilem fracturam sub innixi exhibent.
2. Scelerisque effectus
temperatus aegras fere 30°C est, vitreus temperatus transitus 80-105°C est, temperatura liquatio 140-180°C est, temperatura dissolutionis supra CCC°C est. Scelerisque conductivity humilis est ab 0.04 ad 0.15W/(m·K), et vix temperatura mutatur, ergo bonam scelerisque velit.
3. Polytyrene effectus electrica
Polystyrene bonas electricas proprietates habet, cum volumine resistivity et superficiei resistivity usque ad 1016～1018Ω·cm et 1015～1018Ω, respective. Damnum tangens dielectricum valorem valde demissum est, et frequentia non afficitur, caliditas environmental et humiditas mutationes. Praeclara insulare materiam.
4. Optical effectus
Polytyrene optimas proprietates opticas habet, cum luce transmissionis 88% ad 92% et indicem refractivum 1,59 ad 1.60. Lucem visibilem omnium aequalitatum transmittere potest. Materia perspicua est secunda tantum polymerorum acrylico, sicut plexiglass in materia plastica. .@___@5. Proprietates chemicae
Polytyrenae variis alkalis, salibus et aqueis solutionibus resistunt. Renititur alcoholis inferioribus et quibusdam acida (ut acidum sulphuricum, acidum phosphoricum, acidum boricum, acidum hydrochloricum cum fractione massae 10% ad 30%, et acidum aceticum cum massa fractionis 1% ad 25%., formicum. Acidum cum massae fractionis 1% ad 90%) etiam stabile est.
Praedictae polystyrenae proprietates necessitatibus occurrere
possunt. Praeterea si adhibeatur ad culturam cellularum adhaerentium, superficies lagenae peculiariter mutari debet ad adhaesionem faciendam cellularum augendam.cell culture flasks Vasa culturae cellularum.
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.