Bacteria live in an ever-changing environment and must alter protein expression promptly to adapt to these changes and survive. Specific response genes that are regulated by a subset of alternative σ(70)-like transcription factors have evolved in order to respond to this changing environment. Recently, we have described the existence of a σ(E) regulon including the anti-σ-factor MseR in the obl...

in recent years due to improvements of technology within automobile industry, design process of advanced driver assistance systems for collision avoidance and traffic management has been investigated in both academics and industrial levels. detection of traffic signs is an effective method to reach the mentioned aims. in this paper a new intelligent driver assistance system based on traffic sig...

Text characters and strings in natural scene can provide valuable information for many applications. Extracting text directly from natural scene images or videos is a challenging task because of diverse text patterns and variant background interferences. This project proposes a method of scene text recognition from detected text regions. In text detection, our previously proposed algorithms are...

Chav́ın de Huántar is an archaeological site of critical interest for intepreting the Andean archaeological record. In this paper, we present our work on developing an object recognition system to classify Chav́ın pot sherds by decorative impressions. We trained and evaluated MSER and SURF based classification systems on a small labeled set of replica sherds and achieved classification accuracy o...

In massive multiple-input multiple-output (MIMO) systems, hybrid analog-digital (AD) beamforming can be used to attain a high directional gain without requiring dedicated radio frequency (RF) chain for each antenna element, which substantially reduces both the hardware costs and power consumption. While MIMO transceiver design typically relies on conventional mean-square error (MSE) criterion, ...

Abstract There are many nanoscale pores in deep low permeability coal seams. The flow of coalbed methane (gas) belongs to the gas porous media with medium and high Knudsen numbers. Its mechanism is one key unsolved scientific problems. In order explore transport law nanopores coal, a model based on microscopic boundary restriction was adopted describe law, its rationality verified by experiment...