The usability is recognized as an important quality factor of any modern website. In this paper, techniques for usability evaluation of a website are proposed and their use is described. The results of application of these techniques are discussed in the frame of the design and evaluation of a web portal, serving an Academic Department. The applicability of the developed techniques in a wide ar...

Dosimetric properties of an amorphous silicon electronic portal imaging device (EPID) for verification of dynamic intensity modulated radiation therapy (IMRT) delivery were investigated. The EPID was utilized with continuous frame-averaging during the beam delivery. Properties studied included effect of buildup, dose linearity, field size response, sampling of rapid multileaf collimator (MLC) l...

Radio Frequency Identification (RFID) became the most popular and used technology for items identification and tracking. Typical scenario of its application is a pallet of products bearing RFID tag, which passes by portal equipped with RFID antennas. In such scenario it is important to identify all tags as soon as possible. Access control mechanism widely used in RFID system is Dynamic Framed S...

in this paper we proved that every g-riesz basis for hilbert space $h$ with respect to $k$ by adding a condition is a riesz basis for hilbert $b(k)$-module $b(h,k)$. this is an extension of [a. askarizadeh,m. a. dehghan, {em g-frames as special frames}, turk. j. math., 35, (2011) 1-11]. also, we derived similar results for g-orthonormal and orthogonal bases. some relationships between dual fram...

The patient was a 60-year-old man with encephalopathy without liver cirrhosis. CT angiography revealed a patent ductus venosus between the anterior segmental branch of the portal vein and the middle hepatic vein. Coils were framed in the patent ductus venosus and then used to fill in the frame. After treatment, transarterial portography showed that the shunt flow of the ductus venosus had decre...

In this paper new implicit higher order accuracy (N-IHOA) time integration based on assumption of constant time step is presented for dynamic analysis. This method belongs to the category of the multi time step integrations. Here, current displacement and velocity are assumed to be functions of the velocities and accelerations of several previous time steps, respectively. This definition causes...

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education and information delivery is an integral part of an effective strategy to control the prevalence of obesity and diabetes. nutrition and dietetic portals provide integrated access to a wide range of information resources for nutritionists, physicians and the public due. the nutrition and dietetic portals in selected countries was reviewed to gain insight into the essential elements of s...

congenital generalized lipodystrophy (cgl) is a rare and progressive disorder (1 in 12 milion). common clinical manifestations are lipoatrophy, acromegaloid feature, acanthosis nigricans, hyperlipidemia, diabetes mellitus or abnormal glucose tolerance test.â rarely fatty liver and cirrhosis is seen. the highest number reported in literature is 8 cases from brazil and 6 cases from scandinavia, r...