The Twiddler one–handed chording keyboard offers rapid mobile text entry on a keypad similar to that of a standard mobile telephone. Previously we found that novice users could be trained to type 47 words per minute (wpm) while one participant reached 67 wpm. Here, we present an evaluation designed to examine which combination of two typing aids helps novice Twiddler typists the most. Specifica...

This thesis focuses on the development, analysis and evaluation of methods for the retrieval of ocean surface winds with synthetic aperture radar (SAR) and surface currents with infrared (IR) radiometer sensors. The SAR wind speed retrievals are based on geophysical model functions using wind directions obtained with two approaches. The first approach determines wind directions from the spatial...

This paper proposes a methodology for detecting networklayer anomalies in wireless sensor networks using weak process models (WPM). Weak process models are a non-parametric version of Hidden Markov models (HMM), wherein state transition probabilities are reduced to rules of reachability. Specifically, we present an intrusion detection system based on anomaly detection logic. It identifies any o...

Roots of plantlets of Garcinia indica when cultured for long time on half strength MS medium supplemented with BAP (0.44-2.22 microM) showed production of de novo shoots. Roots attached to mother plant showed more number of shoots, while excised root segments produced lesser shoots. Shoots (0.5-0.8 cm) were transferred to elongation medium consisting of Woody Plant Medium (WPM) supplemented wit...

PURPOSE This study introduces a reading chart application for the iPad tablet in the Korean language and investigates the reading speed in a normal-sighted population according to age group. METHODS Sixty-three Korean sentences were selected from textbooks for second grade elementary school students. A commonly used typeface in everyday printed material, "BatangChe," was used. Letter size was...

One of the most challenging problems in target classification is the extraction of a robust feature, which can effectively represent a specific type of targets. The use of seismic signals in unattended ground sensor (UGS) systems makes this problem more complicated, because the seismic target signal is non-stationary, geology-dependent and with high-dimensional feature space. This paper propose...

Suppose a server holds a long text string and a receiver holds a short pattern string. Secure pattern matching allows the receiver to learn the locations in the long text where the pattern appears, while leaking nothing else to either party besides the length of their inputs. In this work we consider secure wildcard pattern matching (WPM), where the receiver’s pattern is allowed to contain wild...

Astragalus species are medicinal plants which produce valuable secondary metabolites, especially cycloartane-type glycosides. In this study, stem and leaf explants of Astragalus trojanus were subjected to different plant growth regulators, environmental conditions and media compositions to identify their callus responses. Stem and leaf explants were cultured in Murashige and Skoog (MS) and wood...

We present Input Finger Detection (IFD), a novel technique for nonvisual touch screen input, and its application, the Perkinput text entry method. With IFD, signals are input into a device with multi-point touches, where each finger represents one bit, either touching the screen or not. Maximum likelihood and tracking algorithms are used to detect which fingers touch the screen based on user-se...

| Brain–computer interfaces (BCIs) record brain activity and translate the information into useful control signals. They can be used to restore function to people with paralysis by controlling end effectors such as computer cursors and robotic limbs. Communication neural prostheses are BCIs that control user interfaces on computers or mobile devices. Here we demonstrate a communication prosthes...