The convex rope problem, posed by Peshkin and Sanderson in IEEE J. Robotics Automat, 2 (1986) pp. 53-58, is to find the counterclockwise and clockwise convex ropes starting at the vertex a and ending at the vertex b of a simple polygon, where a is on the boundary of the convex hull of the polygon and b is visible from infinity. In this paper, we present a linear time algorithm for solving this ...

Higher harmonics in the acoustic spectrogram of an unmanned air vehicle in-flight, as obtained from a ground-based microphone measurement, is shown to be useful for estimating the vehicle's altitude, speed and true engine revolutions per minute. Specifically, the Doppler-shifted frequency time histories derived from spectrogram contours are used in this estilnation approach which is based on a ...

From vehicle, gun, projectile and charge system, a basic principle has been presented for the first time in the paper by making use of the random-simulation technology based on the theory of interior ballistic, automat, vibration of self-propelled gun system, initial disturbing and external ballistic etc. The basic principle is achieved by simulating a movement procedure of the gun-vehicle syst...

A f ramework for t r a n s l a t i n g speake r ' s meaning or intention is proposed based on two notions, Illocutionary Force Types (IFTs) for analysis and Decision Parameters (DPs) for g e n e r a t i o n . IFTs are a c e r t a i n k i n d of classification of utterances concerning speaker's meaning. DPs present background information of language use in order to derive an appropriate expressi...

T h e visual perceptional ability of computer systems t o understand the environment i s desirable in engineering design and m a n u facturing where automat ion i s anticipated. I n order t o empower a n engineering syst e m wi th the heuristic capabilities, adequate knowledge representation techniques m u s t be employed t o resolve ambiguity in representa t ion and uncertainty in decision mak...

The present paper is focused on modeling of statistical data processing with applications in field of material science and engineering. A new method of data processing is presented and applied on a set of 10 Ni–Mn–Ga ferromagnetic ordered shape memory alloys that are known to exhibit phonon softening and soft mode condensation into a premartensitic phase prior to the martensitic transformation ...

1. Crossing Disciplines How might philosophers and art historians make the best use of one another’s research? That, in nuce, is what this special issue considers with respect to questions concerning the nature of photography as an artistic medium; and that is what my essay addresses with respect to a specific case: the dialogue, or lack thereof, between the work of the philosopher Stanley Cave...

We experimentally investigate the performance of IEEE 802.15.4 radio links and their failure modes in an office building, and, based on this study, propose an adaptation mechanism to conciliate application-level reliability requirements with the underlying network-level properties. The mechanism has two aspects: the spatially-adaptive aspect, implemented through adaptively selecting one or more...

The paper presents a new system for the automat control of the aircrafts’ flight in lateral plane using the cinematic model and the dynamic inversion. Starting from the equations of the aircrafts’ lateral movement, the authors use two axes systems and obtained a control law that cancels the lateral deviation of the flying objects from the runway line. This system makes the aircrafts’ direction ...