نتایج جستجو برای: as a meso
تعداد نتایج: 13990013 فیلتر نتایج به سال:
The presence of substituents at designated sites about the chlorin macrocycle can alter the spectral properties, a phenomenon that can be probed through synthesis. Prior syntheses have provided access to chlorins bearing distinct aryl substituents (individually or collectively) at the 5, 10, and 15-positions, but not the 20-position. A new Western half (5-phenyl-2,3,4,5-tetrahydro-1,3,3-trimeth...
Ethanol and aqueous extracts of Machilus thunbergii used traditionally for the treatments a wide variety of diseases were screened in vitro for the matrix metalloproteinase (MMP)-9 inhibitor actions. Meso-dihydroguaiaretic acid from the stems bark of Machilus thunbergii showed significant MMP-9 inhibition in human keratinocyte cells cause by ultraviolet irradiation. Here we investigated the eff...
This paper presents a Kalman filter designed for a cutting force measurement system. The cutting force measurement system is used to measure cutting forces for meso-milling applications. Due to the small magnitude of the cutting forces generated from the meso-milling process, the measurement results are easily distorted by the noise that exists in the measurement system. The object of the Kalma...
the purpose of the present study is to find out whether bilinguals of khuzestan-arab origin or monolinguals of iranian origin code-switch during learning or speaking english and which group is more susceptible to code-switch. to this end, the students of 24 classes from high schools and pre- university centers were screened out, and interviewed and their voices and code-switchings were recorded...
We report single-crystalline mesoporous molybdenum nitride nanowires (meso-Mo3N2-NWs) prepared by topotactic reaction using single-crystalline molybdenum oxide nanowires. The single-crystalline nature of meso-Mo3N2-NWs was clearly observed by field-emission transmission electron microscopy. The meso-Mo3N2-NWs exhibited mesoporous structure with 45 m/g in specific surface area and 4.6 nm in aver...
This paper presents a Kalman filter designed for a cutting force measurement system. The cutting force measurement system is used to measure cutting forces for meso-milling applications. Due to the small magnitude of the cutting forces generated from the meso-milling process, the measurement results are easily distorted by the noise that exists in the measurement system. The object of the Kalma...
Fig. S3 TEM images of (a) meso-tetrakis(pentafulorophenyl)porphyrin (compound 1), (b) N-fused pentaphyrin (compound 2), (c) meso-hexakis(pentafluorophenyl) [26] hexaphyrin (compound 3), (d) mesoheptakis(pentafluorophenyl) heptaphyrin (compound 4) (e) meso-octakis(pentafluorophenyl) octaphyrin (compound 5), and (f) meso-nonakis(pentafluorophenyl) nonaphyrin (compound 6) on IrO2-GaN:ZnO photocata...
The reaction at room temperature of an aromatic aldehyde with pyrrole in the presence of Iodine, acetic acid catalyzed of meso-substituted dipyrromethane. The mixture was ground together in a mortar with a pestle at room temperature for short reaction time and easy operation under at room temperature. The meso substituted dipyrromethane is purified by crystallization and column chromatography o...
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