In the web advertising domain, contextual advertising and sponsored search are two of the main advertising channels used to display related advertisements on web pages. A major challenge for contextual advertising is to match advertisements and web pages based on their semantics. When a web page and its semantically related advertisements contain many different words, the performance of the tra...

introduction: glaucoma is one of the leading causes of blindness throughout the world. some studies have suggested a relationship between glaucoma and sensorineural hearing loss, while others have found no evidence of an association. we performed a study to determine whether there is a significant difference in hearing of patients with glaucoma and a match control population. methods: in this c...

Introduction: Noise reduction is an important issue for SNR (Signal to Noise Ratio) maximization in MR measurements, therefore a low-noise amplifier should be used as first element in the spectrometer’s receive chain. Since the Noise Figure (NF) of an amplifier changes depending on the impedance seen by the amplifier at its input port, a matching network is commonly placed between this low-nois...

high intensity workout provokes damage in muscles with an effect on muscle physiology and function. today, serum levels of creatine and aspartate aminotransferase are widely used as biochemical markers of muscle damage in order to determine the functional status of muscle tissues in both pathological and physiological conditions. this study investigated the effect of a futsal match on some bioc...

electrochemical impedance spectroscopy (eis) is a suitable and powerful diagnostic testing method for fuel cells (fcs) since it is non-destructive and provides useful information about fc performance and its components. in this study, for the first time, a 500w cascade type 4 cells stack with integrated humidifier, water separator and internal manifolds was designed, fabricated and tested. the ...

A 45MHz-2.5GHz broadband CMOS up-conversion mixer implemented in a conventional 0.18µm technology is presented this letter. The offered employs bisymmetric class-AB input stage order to provide high linearity and match the IF impedance over 0.3-20.15MHz frequency range. draws 3mA current from 1.8V supply voltage, core chip dimension of 0.05*0.08mm2. At range 45MHz-2.5GHz, output third-order int...

We introduce the concept of impedance matching to axion dark matter by posing question why detection is difficult, even though there enough power in each square meter incident dark-matter flux energize a LED light bulb. By quantifying backreaction on field, we show that small axion-photon coupling does not itself prevent an order-unity fraction from being absorbed through optimal match. further...