In this paper we describe methods using 2D-pixel motion elds for detecting shot breaks and classifying camera motion in digital video. These ow elds can be calculated with optical ow or correlation matching. The Karhunen-Loe ve transform (KLT), based on statistical properties, insures extraction of optimal linear features from ow elds representing a particular motion class. Two methods for clas...

Work ow processes are long duration activities and therefore it is not possible to apply the well accepted correctness techniques of transactions directly to work ow systems In this paper we rst mention the correctness problems of work ow systems and then exploit the available seman tics in work ow speci cation in the form of data and serial control ow dependencies to de ne isolation units We s...

In the title compound, C(12)H(12)N(6)·4H(2)O, the two triazole rings adopt a cis configuration with a crystallographic twofold axis passing through the central benzene group. The benzene and triazole rings are almost coplanar with a dihedral angle of 5.5 (1)°. In the crystal, water mol-ecules are joined together by OW-H⋯OW hydrogen bonds to form a one-dimensional zigzag chain. These water chain...

An important aspect of evacuation planning is to save human population by sending the people in dangerous areas (sources) safe places (sinks). Optimization models for focus on regulating tra_c ow urban road networks so as maximize number evacuees reaching or minimize time evacuees. Recent studies show that reversing direction usual necessary segments increases and decreases signi_cantly. Howeve...

Betula platyphylla Suk (Asian white birch) is an economically important tree species in the paper-pulping and biofuel industries. To investigate mechanism of wood formation at metabolic level, we evaluated responses associated with tension-wood formation. Four-year-old trees were subjected to artificial bending treatment for 6 weeks. The xylem growth rate tension (TW) was significantly faster t...

In the title compound, C20H20Cl2N2O2·H2O, the piperidine ring adopts a chair conformation with the two substituent benzene rings inclined to one another [dihedral angle 84.63 (9)°]. In the crystal, the components are linked by Ow-H⋯O, N-H⋯Ow (w = water) and C-H⋯O hydrogen bonds, generating a sheet structure lying parallel to (101).