نتایج جستجو برای: advantages of cm
تعداد نتایج: 21171166 فیلتر نتایج به سال:
Background and aims: Needle trap micro-sampler, with all advantages of microextraction techniques such as solid phase microextraction, owing to the ease of use and becoming a powerful method for air pollution monitoring. In this study, the performance of needle trap micro-sampler device with silica composite of carbon nanotubes, prepared using sol-gel technique, was investigated for health moni...
Human pluripotent stem cell-derived cardiomyocytes (hPS-CM) may offer a number of advantages over previous cardiac models, however, questions of their immaturity complicate their adoption as a new in vitro model. hPS-CM differ from adult cardiomyocytes with respect to structure, proliferation, metabolism and electrophysiology, better approximating fetal cardiomyocytes. Time in culture appears t...
The advantages of using copper for interconnection in microcircuits are mostly due to its lower resistance compared to the aluminum metallization. Copper-based metallization has specific resistance of less than 2 μΩ-cm compared to more than 3 μΩ-cm for aluminum metallization. In combination with a reduced susceptibility to electromigration failures, this enables designing of highly scaled devic...
The relativistic magnetron has a series of advantages, such as high efficiency, compact structure, and tunability. In this paper, an improved modified high-efficiency with novel cathode endcap is presented investigated numerically. simulation, high-power microwave the transverse electromagnetic mode generated average power 1.56 GW, frequency 1.593 GHz, efficiency 75.8% when voltage 586 kV curre...
A rapid and convenient method was developed to determine the polar components (PC) of frying oil by Fourier-transform near-infrared (FTNIR) spectroscopy. One hundred twenty six oil samples were used to PC determination by column chromatography and FTNIR spectroscopy combined with partial least-square (PLS) calibration. The optimal PLS calibration was obtained after the Savitzky-Golay smoothing ...
A spectrophotometric study of osmium (VIII) complex of 1-hydroxy 2- pyridine thione (HPT) is presented. A red-violet complex, 0 s (HPT) is formed in a highly acidic solution, and shows maximum absorbance at 500 nm with molar absorptivity of 5.12 x 101. mol . cm . Beer's law is obeyed in the range of 3-60 ppm. Sandel's sensitivity of the method is 0.37 ?g.cm per0.001 ab sorbance unit. V (V)...
Differential lock is a means of improving tractor performance. This system causes the revolution of the axles to become equal. It, improves traction, decreases abrasion of drive tires, improves fuel consumption, and increases tractor work rate. Despite advantages of the system, differential lock has not been optimized in Iran. Thus, a semi-automatic differential lock system for MF-285 tractor w...
The frontalis musculocutaneous island flap offers advantages of immediate repair for small to medium-sized forehead defects (0.5-5 x 0.5-5 cm). Based on the supraorbital artery, the flap is both adaptable and dependable. Advantages of this flap include the ability to perform the procedure immediately and in one stage, rapid aesthetic restoration, minor donor-site morbidity, and technical ease. ...
Planting pattern through changing vegetative growth and utilization of environmental resourses affects yield components and seed yield. These effects were studied in the spring of 2000 at the Agricultural Research Station, Isfahan University of Technology, using a randomized complete block design with a split plot layout and three replications. Main plots consisted of three row distances (30 cm...
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