نتایج جستجو برای: نانو زیولیت sba
تعداد نتایج: 16518 فیلتر نتایج به سال:
Soybean agglutinin (SBA) is a non-fiber carbohydrate-related protein and the main anti-nutritional factor that exists in soybean or soybean products. SBA possesses a specific binding affinity for N-glyphthalide-d-galactosamine or galactose and has a covalently linked oligosaccharide chain. SBA mediates negative effects on animal intestinal health by influencing the intestinal structure, barrier...
واکنش چند جزئی واکنشی است که در آن سه واکنشگر یا بیش تر به طور همزمان با هم ترکیب شده و محصول نهایی را تولید می کند. محصول نهایی شباهت ساختاری بسیاری به واکنشگرهای اولیه داشته و این امکان را می دهد تا با کمترین صرف انرژی محصولات متنوعی تولید گردد. sba-15 با داشتن ساختار هگزاگونالی و اندازه حفرات حدود nm 3 و مساحت سطح بالا بستر مناسبی جهت سنتز کاتالیزگرهای سیلیکایی می باشد. ضخامت دیواره های سیل...
OBJECTIVES To calculate the Scapular Balance Angle (SBA) reference values in a healthy population between 18 and 85 years old, and to define abnormality criteria for this sample. MATERIALS AND METHODS A descriptive study was conducted on a total of 300 individuals (mean age: 44.83, range: 18-83; proportion male/female: 1.59), calculating the SBA through manual measurement with a goniometer. A...
در این تحقیق، هدف سنتز نانو کامپوزیت مزوپروس سیلیکا-نقره با درصدهای مختلف نقره (2.5، 5 و 10) به روش مستقیم در شرایط اسیدی و با استفاده از کوپلیمر پلورونیک p123 به عنوان قالب و نمک agno3 سنتز شد. جهت مقایسه ماده مزوپروس سیلیکای خالص نیز به روش مشابه بدون افزودن نمک نقره سنتز شد. در نهایت از مواد تولید شده برای حذف یون فلزی جیوه از آب استفاده شد. مشخصه یابی توسط آنالیزهای پراش پرتو اشعه ایکس در ...
Soybean agglutinin (SBA) is an anti-nutritional factor of soybean, affecting cell proliferation and inducing cytotoxicity. Integrins are transmembrane receptors, mediating a variety of cell biological processes. This research aims to study the effects of SBA on cell proliferation and cell cycle progression of the intestinal epithelial cell line from piglets (IPEC-J2), to identify the integrin s...
The growth of ordered nanorods of mesoporous SBA-15 inside a porous alumina membrane has been achieved for the first time by a simple sol-gel method. The obtained SBA-15 nanorods themselves have ordered hexagonal mesochannels with a size of about 6 nm and have been arranged to form hexagonal arrays by the limitation of pores of the alumina membrane. The synthesized alumina membrane with mesopor...
Mesoporous silica SBA-15 was synthesized using P123 as surfactant and functionalized with (3-chloropropyl) triethoxysilane. For the first time, the composite of THPP-SBA-15 was prepared using incorporation of tetrakis(4-hydroxyphenyl)porphyrin in functionalized SBA-15. The materials were characterized by BET, SEM, XRD, FT-IR, DRS, and UV–Vis spectroscopy techniques. The synthesized composite wa...
BACKGROUND The fifth Millennium Development Goal target for 90% of births in low and middle income countries to have a skilled birth attendant (SBA) by 2015 will not be met. In response to this, policy has focused on increasing SBA access. However, reducing maternal mortality also requires policies to prevent deaths among women giving birth unattended. We aimed to generate estimates of the abso...
Novel organic-inorganic mesoporous luminescent hybrid material N, N'-bis(salicylidene)-thiocarbohydrazide (BSTC-SBA-15) has been obtained by co-condensation of tetraethyl orthosilicate and the organosilane in the presence of Pluronic P123 surfactant as a template. N,N'-bis(salicylidene)-thiocarbohydrazide (BSTC) grafted to the coupling agent 3-(triethoxysilyl)-propyl isocyanate (TESPIC) was use...
Suprapubic bladder aspiration (SBA) has proved to be a useful and safe method in avoiding contamination when urine samples are taken from children. The following complications have been reported: suprapubic haematoma (Nelson and Peters, 1965), haematuria (Lanier and Daeschner, 1971), and suprapubic abscess (Polnay et al., 1975). A 4i-month-old boy developed a suprapubic abscess after an unsucce...
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