نتایج جستجو برای: nanozeolite a
تعداد نتایج: 13431823 فیلتر نتایج به سال:
Experimental process The one-pot DKR of racemic 1-PE was carried out in a glass reactor with a magnetic stirring under microwave irradiation at a desired temperature. Typically, racemic 1-PE (0.10-0.4 mmol) and acyl donor (0.20-0.8 mmol) were firstly added into n-hexane (4.0 mL). And then, 20 mg of the core-shell bi-functional catalysts (Hβ-PDDA@CALB)MSs were added into the above-mentioned reac...
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The pollution of water environments is a challenging issue especially in developing countries. Contamination of drinking water with heavy metals has been reported in many parts of the world. Arsenic, chromium and lead are dangerous heavy metals and also common contaminants of drinking water. In this study, the capacity and performance of the surfactant-modified Sabzevar natural nanozeolite (SMS...
In recent years, nanoceramics have been used in scaffolds to emulate the nanocomposite with a three-dimensional structure of natural bone tissue. In this regard, polycaprolactone biopolymer is widely used as a scaffold in bone tissue engineering. The goal of this research is to produce porous scaffolds of polycaprolactone - zeolite biocomposite with suitable mechanical, bioactive and biological...
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هدف پـژوهش حاضـر پـی بـردن بـه میـزان بهـره منـدی مـردم شـهر بجنـوردازمطبوعات است. این طرح به روش پیمایشـی و بـا اسـتفاده از پرسشـنامه انجـام شـد وداده های آن گرد آوری شده بوسیله نرم افزار SPSS مورد تجزیه و تحلیل قرار گرفت. از مهمترین نتایجی که به دست آمد این بود که 4/54 درصـد افـراد بـا سـواد51 سال به بالای شهر بجنورد به مطالعه مطبوعات علاقه مند هستند. در عین حـا ل مهمتـریندلیل عدم مطالعه گ...
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