Improving indoor air quality and energy consumption is one of the high demands in building sector. In this study, unsteady flow oscillations a 3-D ventilated model room with convective heat transfer have been studied for three configurations an empty (case 1), unheated box 2) heated 3). Computational results are validated against experimental data airflow velocity, temperature turbulence kineti...

BACKGROUND Psychological stress (PS) is recognized as an important pathogenic factor which leads to metabolism disorder in many diseases. Previous studies have shown that systemic iron homeostasis in mammalians was changed under specific stress conditions. METHODS In present study, we used communication box to create psychological stress model and investigated the iron apparent absorption, ir...

We give a new proof of the following interesting fact recently proved by Bower and Michael: if a d-dimensional rectangular box can be tiled using translates of two types of rectangular bricks, then it can also be tiled in the following way. We can cut the box across one of its sides into two boxes, one of which can be tiled with the first brick only and the other one with the second brick. Our ...

Benjamini and Kesten introduced in 1995 the problem of embedding infinite binary sequences into a Bernoulli percolation configuration, known as words. We give positive answer to their Open Problem 2: almost surely, all words are seen for site on $\mathbb{Z}^3$ with parameter $p = 1/2$. also extend this result various directions, proving same $\mathbb{Z}^d$, $d \geq 3$, any value \in (p\_c^{\tex...

B. Ashcroft, B. Takulapalli, J. Yang, G. M. Laws , H. Q. Zhang , N. J. Tao , S. Lindsay, D. Gust, and T. J. Thornton 3 1 Department of Physics & Astronomy, P.O. Box 871504, Arizona State University, Tempe, AZ 85287, USA 2 Center for Solid State Electronics Research, P.O. Box 876206, Arizona State University, Tempe, AZ 85287, USA 3 Department of Electrical Engineering, P.O. Box 875706, Arizona S...

C O M P l L E D BY N.-G. ASP, J. M. M. V A N AMELSVOORT A N D J. G. A. J. HAUTVAST* Applied Nutrition and Food Chemistry, Chemical Center, Lund University, P.O. Box 124, S-221 00 Lund, Sweden (N-GA), Unilever Research Laboratory, P.O. Box 114, 3 130 AC Vlaardingen, The Netherlands (JMMvA), and Department of Human Nutrition, Wageningen Agricultural University, Bomenweg 2, 6703 HD Wageningen, The...

We describe methods for evaluating one-loop integrals in 4−2 dimensions. We give a recursion relation that expresses the scalar n-point integral as a cyclicly symmetric combination of (n− 1)point integrals. The computation of such integrals thus reduces to the calculation of box diagrams (n = 4). The tensor integrals required in gauge theory may be obtained by differentiating the scalar integra...

F. Pauly,1,* J. K. Viljas,2,3 M. Bürkle,1 M. Dreher,4 P. Nielaba,4 and J. C. Cuevas5 1Institut für Theoretische Festkörperphysik and DFG Center for Functional Nanostructures, Karlsruhe Institute of Technology, D-76131 Karlsruhe, Germany 2Low Temperature Laboratory, Aalto University, P.O. Box 15100, FIN-00076 Aalto, Finland 3Department of Physics, P.O. Box 3000, FIN-90014 University of Oulu, Fin...

This work proposes a new secure chaos-based encryption/decryption system, operating in cipher block chaining (CBC) mode, and analyze its performance. The cryptosystem includes robust pseudorandom number generator of chaotic sequences (PRNG-CS). A strong S-box is proposed to perform circular substitution operation (confusion process). PRNG-CS consists four discrete 1-D maps, weakly coupled by pr...