English
Hayotiy fanlar sohasidagi jadal rivojlanish hujayra madaniyati texnologiyasini yanada kengroq qo'llashga olib keldi. Hujayra madaniyati kolbalari laboratoriyalarda o'rta miqyosdagi hujayra va to'qimalar madaniyati uchun mos bo'lgan sarf materiallari. Ushbu sarflanadigan materialning qopqoqlari ikki turga bo'linadi: shamollatish qopqoqlari va muhrlangan qopqoqlar. Shamollatish qopqoqlari qanday xususiyatlarga ega?
Volkali kolbalar asosan karbonat angidridli muhitda ishlatiladi. Shamollatish qopqog'i nafas oluvchi membrana va shisha qopqog'idan iborat. Nafas oladigan membrana polimer suv o'tkazmaydigan materialning yangi turidir. Ishlab chiqarish jarayoni nuqtai nazaridan, suv o'tkazmaydigan va nafas oladigan membranalarning texnik talablari umumiy suv o'tkazmaydigan materiallarga qaraganda ancha yuqori; sifat nuqtai nazaridan suv o'tkazmaydigan va nafas oladigan membranalar boshqa suv o'tkazmaydigan materiallarda ham mavjud emas. Yuqori haroratga chidamlilik, past haroratga chidamlilik, korroziyaga chidamlilik, yopishmaslik, yuqori moylash va boshqa xususiyatlar.
Suv o'tkazmaydigan va nafas oladigan membrananing o'rta nafas oluvchi qatlami yuqori texnologiyali tamoyillar asosida ishlab chiqarilgan mikroporozli membrananing bir turidir. . Teshiklarning kattaligi suv bug'ining silliq o'tishiga imkon beradi, lekin suv molekulalarini emas, shuning uchun bu mahsulot suv o'tkazmaydigan va nafas oladigan funktsiyaga ega. Nafas oluvchi qopqoq atrof-muhitdagi karbonat angidridni hujayra madaniyati kvadrat shishasiga kirishiga imkon beradi va hujayra o'sishi uchun zarur gaz sharoitlarini ta'minlaydi.
hujayra madaniyati kolbalari qopqog'idagi nafas oluvchi membrana ham sterilizatsiya funktsiyasiga ega bo'lib, bakteriyalarni oldini oladi. konteynerga kirishdan va hujayralarni ifloslantirishdan. Shisha ichidagi suyuqlik nafas oladigan membrana bilan aloqa qilgandan keyin uning mikrobial to'siqni ishlashiga va ventilyatsiya ta'siriga ta'sir qilmaydi. Ilmiy muassasalar undan ishonch bilan foydalanishlari mumkin.
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.