this study is an attempt to apply the market timing andsecurity selection models to evaluate the performance of iranianmutual funds. the research shed light on the questions of ‘howsuccessful are mutual funds in earning excess returns over those of themarket?’ ‘do the excess returns during research period have anymeaningful trend for these financial intermediaries or is it the result ofthe abil...

Homogenous charge compression ignition (HCCI) combustion is spontaneous multi-site combustion of a nominally premixed air/fuel mixture that exhibits high rate of pressure rise and short combustion duration. To avoid excessive pressure rise rate and knocking, HCCI engines are fueled with highly diluted mixture using a combination of excess air and/or EGR. HCCI combustion is attractive due to ...

this study empirically examines whether managers manipulate reported income through the timing of sales of long-lived assets and investments. several empirical implications of the income-smoothing and debt-equity hypothesis in the context of asset sales were tested. the findings are consistent with the timing of asset sales by managers so that the recognized accounting income from these sales s...

We extend the TSE [14] timing analysis algorithm into the symbolic domain, that is, we allow symbolic variables to be used to specify unknown parameters of the model (essentially, unknown delays) and verification algorithms which are capable of identifying not just failure or success, but also the constraints on these symbolic variables which will ensure successful verification. The two main co...

Giant pulses are short, intense outbursts of radio emission with a power-law intensity distribution that have been observed from the Crab Pulsar and PSRB1937+21. We have undertaken a systematic study of giant pulses from PSRB1937+21 using the Arecibo telescope at 430, 1420, and 2380 MHz. At 430 MHz, interstellar scattering broadens giant pulses to durations of ∼ 50 μsecs, but at higher frequenc...

In modern cars the communication infrastructure consists of different application specific bus systems that are interconnected with each other. Due to the growing complexity of the communication infrastructure, the corresponding timing analysis at system level is currently a hot topic in the automotive industry. FlexRay is a state-of-the-art fieldbus for cars. While FlexRay simulations below sy...

Information theory has not yet had a direct impact on networking, although there are similarities in concepts and methodologies that have consistently attracted the attention of researchers from both fields. In this paper, we review several topics that are related to communication networks and that have an information-theoretic flavor, including multiaccess protocols, timing channels, effective...

We describe an algebraic technique for performing timing analysis of a class of asyn-chronous circuits described as CSP programs (including Martin's probe operator) with the restrictions that there is no OR-causality and that guard selection is either completely free or mutually exclusive. Such a description is transformed into a safe Petri net. Interval time delays are speciied on the places o...

It is becoming evident that testability must be addressed throughout the entire design process. To successfully meet all the design goals of today's and tomorrow's enormously complex devices, swift convergence of function, timing, area and power requirements must be simultaneously accompanied by new test tools that enable rapid, predictable and repeatable DFT closure. Achieving successful DFT c...

Comment on: Tazumi A, et al. Genes Dev 2012; 26:2050-62.