نتایج جستجو برای: gain ratio

تعداد نتایج: 654817  

Mahmood Seifouri Mostafa Kohestani Parviz Amiri

In this paper, we investigate the parameters affecting Total Harmonic Distortion (THD) and Power Supply Rejection Ratio (PSRR) in PWM Class D Amplifiers (CDAs) on the basis of linear models with feedback. From our mathematical analysis, we show that the THD of a PWM Class D amplifier with feedback can be improved by increasing the gain of the integrator through adding another amplifier at the o...

E. Rowghani, M. Arab Abousadi M. Ebrahimi Honarmand

Three-hundred and twenty 7-day-old Ross 308-strain broiler chickens were fed diets containing 0 or 125 ppb aflatoxin B 1 (AFB1) from 7 to 28 days of age. Sodium bentonite (0.5%), yeast (Saccharomyces cervisiae) 0.2%, hydrated sodium calcium aluminosilicate (HSCAS) (0.5%), ammonia (0.5%), formycine (0.1%), and toxiban (0.1%) were added to the basal diet, as fed basis to determine the effects of ...

2016
Sirish Uprety

The USGS ROLO model predicts the top-of-the atmosphere lunar irradiance as a function of lunar phase and libration angles over the spectral range from 350 nm to 2350 nm. As demonstrated with SeaWiFS, by measuring the lunar irradiance on a routine basis and comparing the measurements with the ROLO model, the relative trending of a satellite sensor band’s responsivity can be achieved with uncerta...

2004
Benno J. Rensing Walter R. M. Hermans Jeroen Vos Kevin J. Beatt Patrick Bossuyt Wolfgang Rutsch Patrick W. Serruys

Because many ongoing clinical restenosis prevention trials are using quantitative angiography to assess whether a drug is capable of reducing the amount of intimal hyperplasia, quantitative angiographic risk factors for angiographic luminal narrowing after balloon angioplasty were determined, including stretch and elastic recoil at the dilatation site. Quantitative analysis was performed on 666...

In this paper, a SIW horn antenna is designed using Luneburg lens in order to enhance the gain. Using a transition printed on the same substrate, both the matching performance and the front to back ratio was improved. In addition, this transition structure allows the antenna to be planar. The proposed antenna operates at 14.5 GHz and can be used for Ku band application.An antenna prototype was ...

B. Hosseintabar Ghasemabad P. Baghban Kanani, P. Farhoomand S. Azimi Youvalari

The aim of this study was to evaluate the effects of copper (Cu) sulfate (0, 125 and 250 mg/kg), arginine (Arg) supplements (0, 0.1 and 0.2%) and glucosinolate content on performance and carcass traits in broiler chickens fed with canola meal based diet. During a three-week experimental period (22-42 d), 405 male broilers were used in completely randomized design with a 3 × 3 factorial experime...

Journal: :علوم دامی ایران 0
مجتبی زاغری ساره بوربور منصور رضائی اسدالله تیموری یانسری محمد ریاحی

an experiment was conducted using 640 day-old sexed commercial broiler chicks (ross 308 strain) from 10 to 49 days of age. the experimental design was a completely randomized factorial one. the experimental units (pens) contained 20 chicks each and were allotted at random to 4 dietary treatments × two sexes with 4 replicates per treatment. four dietary treatments were formulated based on corn a...

Journal: :علوم دامی ایران 0
سعید شادپور عبدالاحد شادپرور نغمه عیوقی

a deterministic model was employed to simulate various progeny testing programs compatible with the conditions of holstein dairy cattle population in iran. in simulated programs, the selection intensity of bulls was increased by increasing the ratio of cow population in mate with young bulls. selection accuracy in the programs was fixed because of the fixed progeny group. economic efficiency (t...

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