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- ANTENNA DESIGN, C.-H. Loo, +10 authors P. Ruuskanen
- 2008

Passive UHF RFID tag consists of a microchip attached directly to an antenna. Proper impedance match between the antenna and the chip is crucial in RFID tag design. It directly influences RFID system performance characteristics such as the range of a tag. It is known that an RFID microchip is a nonlinear load whose complex impedance in each state varies… (More)

- Chye-Hwa Loo, Khaled Elmahgoub, +9 authors Pekka Ruuskanen
- 2007

Chye-Hwa Loo, Khaled Elmahgoub, Fan Yang, Atef Elsherbeni* , Darko Kajfez, Ahmed Kishk, Tamer Elsherbeni, Leena Ukkonen, Lauri Sydänheimo, Markku Kivikoski, Sari Merilampi, and Pekka Ruuskanen (1) Department of Electrical Engineering, The University of Mississippi, University, MS, 38677, USA {cloo, kelmahgo, fyang, atef, eedarko, ahmed,… (More)

- Sari Merilampi, T. Laine-Ma, Pekka Ruuskanen
- Microelectronics Reliability
- 2009

- Sari Merilampi, Toni Björninen, Antti Vuorimaki, Leena Ukkonen, Pekka Ruuskanen, Lauri Sydänheimo
- Proceedings of the IEEE
- 2010

- Sari Merilampi, Toni Björninen, Veikko Haukka, Pekka Ruuskanen, Leena Ukkonen, Lauri Sydänheimo
- Microelectronics Reliability
- 2010

Using the NMC and E665 nuclear structure function ratios F 2 /F D 2 and F A 2 /F C 2 from deep inelastic lepton-nucleus collisions, and the E772 Drell–Yan dilepton cross sections from protonnucleus collisions, and incorporating baryon number and momentum sum rules, we determine nuclear parton distributions at an initial scale Q0. With these distributions,… (More)

A systematic study of the inclusive single heavy quark and heavy-quark pair production cross sections in pp collisions is presented for RHIC and LHC energies. We compare with existing data when possible. The dependence of the rates on the renormalization and factorization scales is discussed. Predictions of the cross sections are given for two di erent sets… (More)

We compute the thermal photon spectrum in the Pb+Pb collisions at the CERN SPS energy using thermal emission rates and a hydrodynamic description for the evolution of produced hot matter and compare our results with the measurements of the excess photons by the WA98 collaboration. Our results show that the measured photon spectrum can be reproduced with… (More)

We compute the particle multiplicities and transverse energies at central and nearly central AA collisions at RHIC and LHC. The initial state is computed from perturbative QCD supplemented by the conjecture of saturation of produced partons. The expansion stage is described in terms of hydrodynamics assuming longitudinal boost invariance and azimuthal… (More)

- P. V. Ruuskanen
- 1999

Nuclear parton distributions fA(x, Q ) are studied within a framework of the DGLAP evolution. Measurements of F 2 /F D 2 in deep inelastic lA collisions, and Drell–Yan dilepton cross sections measured in pA collisions are used as constraints. Also conservation of momentum and baryon number is required. It is shown that the calculated Q evolution of F Sn 2… (More)