Research on how the Internet is diffusing across the population has broadened from questions about who uses the medium to what people do during their time online. With this change in focus comes a need for more detailed data on people’s online actions. The author provides a method for coding and classifying users’online information-seeking behavior. The author presents an exhaustive list of way...

Valley search aims to find the updated optimal read reference voltage (OPT) that minimizes raw bit error rate (RBER). In this paper, a valley algorithm is proposed, which can accurately OPT after five operations through simple calculation based on cubic polynomial approximation, without traversing all voltages between two adjacent program states. Experimental results of TLC chip show applying s...

In this paper, the modeling, simulation and control of a robotic meat cutting cell is described. A dual-arm system is used in the separation task, one arm cuts the meat along a deformable guide line while the second arm graps and pulls the meat to further increase the opening of the valley. The steps taken to model the cell in order to ensure a realistic interaction between the robots and the f...

A field experiment was carried out to calibrate and evaluate the METRIC (Mapping EvapoTranspiration at high Resolution Internalized with Calibration) model for estimating the spatial and temporal variability of instantaneous net radiation (Rni), soil heat flux (Gi), sensible heat flux (Hi), and latent heat flux (LEi) over a drip-irrigated apple (Malus domestica cv. Pink Lady) orchard located in...

In this paper, we present an adaptive extremum seeking control scheme for continuous stirred tank bioreactors. We assume limited knowledge of the growth kinetics. An adaptive learning technique is introduced to construct a seeking algorithm that drives the system states to the desired set-points that maximizes the value of an objective function. Lyapunov’s stability theorem is used in the desig...

The pilot study reported here applies content analysis techniques to twenty interviews carried out in preparation for mediated searches as part of the 'Uncertainty in Information Seeking' project. The tools used in the analysis (Atlas.ti and TEXTStat) are described and their contribution assessed. TEXTStat, a free program, was used to produce frequency counts of the words used in the interview ...

This work introduces slope seeking, a new idea for non-model based adaptive control. It involves driving the output of a plant to a value corresponding to a commanded slope of its reference-to-output map. To achieve this objective, we introduce a slope reference input into a sinusoidal perturbation-based extremum seeking scheme; derive a stability test for single parameter slope seeking, and th...

In this paper, we present a new approach of extremum seeking control scheme, which applies two surfaces. Compared to other extremum seeking control algorithms, the new approach produces nearly no oscillation in the control results because the searching signal in this approach is no longer a periodic one. The control accuracy can be guaranteed by choosing two surfaces at a suitable distance. The...