Quantitative SPECT can be well achieved if photon attenuation is taken into account in the reconstruction process. Using a transmission scan is a common approach. A dramatic simplification could be made if the attenuation map could be obtained from the emission data. In this paper, we propose a new method to estimate the attenuation map using the data consistency conditions of the attenuated Ra...

The acoustic emission (AE) signal of wood damage is a kind of weak and highfrequency signal. Hardware circuit design and software programming are necessary for the acoustic emission data acquisition. In order to carry out further analysis, it needs to be preprocessed. The preprocessing hardware system consists of preamplifier, filtering circuit, main amplification circuit and AD converting circ...

This paper estimates the Marginal Abatement Cost Curve (MACC) of CO2 emissions in China based on a provincial panel for the period of 2001-2010. The provincial marginal abatement cost (MAC) of CO2 emissions is estimated using a parameterized directional output distance function. Four types of model specifications are applied to fit the MAC-carbon intensity pairs. The optimal specification contr...

Using the pulse arrival times from pulsar observations made between 1.4 and 32 GHz, we constrain the location and size of the magnetospheric region which is responsible for the observed radio emission. We demonstrate that for long period pulsars themagnetic fieldmaintains its dipolar form throughout the whole emission region. The emission region itself is located very close to the stellar surfa...

In this paper, we introduce a method to examine and interpret spatio-temporal radio emission datasets. The goal is to find communication patterns in the data in respect to spatial, temporal, and frequency based attributes. The chosen approach is a combination of two different AI-methods. First a clustering algorithm groups spatially close data points to potential emitters. In a second step a mo...

Reflection-source otoacoustic emission phase-gradient delays are widely used to obtain noninvasive estimates of cochlear function and properties, such as the sharpness of mechanical tuning and its variation along the length of the cochlear partition. Although different data-processing strategies are known to yield different delay estimates and trends, their relative reliability has not been est...

The Continuous Emission Monitoring (CEM) data have attracted interest for potentially providing improved point-source emissions data for air quality models. Through the CEM program, NOx and SO2 data have been collected on an hourly basis since 1995, but several features of the data must be addressed before they can be useful for air quality modeling. These features include the large volume of d...

This work proposes substantial algorithmic enhancements to the SPEA attack of Schlösser et al. [16] by adding cryptographic postprocessing, and improved signal processing to the photonic measurement phase. Our improved approach provides three crucial benefits: (1) For some SBox/SRAM configurations the original SPEA method is unable to identify a unique key, and terminates with up to 2 key candi...

acacia nilotica (thorn mimosa) is used locally for various medicinal purposes by traditionalists and herbalists in northeastern nigeria. plants products have been used since ancient times in the management of various conditions. the bark of a. nilotica has been reported to be used traditionally to manage diabetes, dysentery, leprosy, ulcers, cancers, tumor of the eye, ear and testicles, indurat...