background: the use of devices emitted microwave radiation such as mobile phones, wireless fidelity (wi-fi) routers, etc. is increased rapidly. it has caused a great concern; the researchers should identify its effects on people's health. we evaluated the protective role of vitamin c on the metabolic and enzymatic activities of the liver after exposure to wi-fi routers. material and methods: 70...

In this paper, we deal with a certain type of automated food packing system with n hoppers. The system repeats throwing some amount of foods into empty hoppers to make all hoppers full of foods, and collecting the foods from several hoppers to pack them into a single package. We treat foods thrown into each hopper as an item i with an integer weight wi. Given a set I of n items in the hoppers, ...

Let {Wi}i∈I be a (redundant) sequence of subspaces each being endowed with a weight vi, and let H be the closed linear span of the Wi’s, a composite Hilbert space. Provided that {(Wi, vi)}i∈I satisfies a certain property which controls the weighted overlaps of the subspaces, it is called a fusion frame. These systems contain conventional frames as a special case, however they go far “beyond fra...

in this paper, a dc-dc resonant converter with high voltage gain and small size is studied. to reduce the size and weight of this converter, the operating frequency should be as high as possible. in this research, the frequency changes from 120 to 200 khz. due to the high operating frequency, it is necessary to reduce the switching losses using soft switching methods. resonant converters are su...

Speech coding at bit rates near 4 kbps is expected to be widely deployed in applications such as visual telephony, mobile and personal communications. This research focuses on developing a speech coder based on the waveform interpolation (WI) scheme, with an attempt to deliver near toll-quality speech at rates around 4 kbps. A WI coder has been simulated in floating-point using the C programmin...

In this equation, n represents the number of Figures of Merit (FoMs) that are to be combined, xi represents the output of the scoring function for the ith FoM and wi represents the weight of importance assigned to the ith FoM. The Product Tradeoff Function is commonly used for example in computing cost to benefit ratios and in doing risk analyses. Unfortunately, the published equation on page 1...

background: statins have been effective medications in lowering serum total cholesterol (tc) concentrations across populations over time. the aim of this study was to estimate national and provincial trends in atorvastatin sales in iran, to systematically quantify its relationship with socio-economic indicators, and changes in tc level.   methods : in this retrospective ecological study, conduc...

Weight imprinting (WI) was recently introduced as a way to perform gradient descent-free few-shot learning. Due this, WI almost immediately adapted for performing learning on embedded neural network accelerators that do not support back-propagation, e.g., edge tensor processing units. However, suffers from many limitations, it cannot handle novel categories with multimodal distributions and spe...

In a home networking environment where more than one radio devices that are using 2.4GHz band within a certain distance may result in a significant interference. This research mainly focused on particular technologies that operate in 2.4GHz radio channel analysing the fact that the Bluetooth and Wi-Fi radio operation in a wireless network environment may create interference and may deliver poor...