Stable nitrogen isotope ratios of five mussel species from littoral and pelagic areas were investigated with different trophic states in the eutrophic Lake Taihu, the third largest lake in China. Interpopulation variability for these mussels was relatively small in foot tissues because of the slow turnover time. Seasonal and spatial variations among the delta (15)N values of mussels might be du...

So far, no research has been focused on the determination of organomercuries in sewage sludge. Here, an ultrasonic extraction method for the rapid determination of methylmercury (MeHg) and ethylmercury (EtHg) in sewage sludge after ultrasound-assisted extraction is proposed. Using TMA (tetramethylammonium hydroxide) as the extractant with 3.0 g copper powder, ultrasonic extraction for 30 min at...

Recently, a new islanding detection scheme based on power electronic signaling technology has been proposed in the literature. By broadcasting a signal on the distribution feeders from the substation to the down-stream DGs, the absence of the signal at the DG site will be a sign of islanding. The scheme is more reliable than regular local detection techniques while it costs much less than trans...

* School of Computer Engineering, Jinling Institute of Technology Nanjing 211169, China, ([email protected]) Abstract Sparse subspace learning has been proven to be effective in data mining and machine learning. In this paper, we propose a novel scheme which performs robust feature selection with non-negative constraint and sparse subspace learning simultaneously. This work emphasizes joint l2...

While hazardous chemicals pollutions occurring, monitoring and forecasting are very important for emergency planning and evacuation. To implement the object, huge amounts of wireless sensors may be distributed in large area. The data gathered by the sensors are sent back to data centers for preprocessing and analysis, which need massive computing utility. Therefore a high effective computing pa...

We note that it is possible to determine the weak phase γ from the time dependent measurements of the decays B0 s (t)(B̄ 0 s (t)) → D̄0φ without any hadronic uncertainties. These decays are described by the color suppressed tree diagrams and hence are free from the penguin pollutions. We further demonstrate that γ can also be extracted with no hadronic uncertainties from an angular analysis of co...

Asthma is a complex, heterogeneous and chronic airway inflammatory disease with different clinical phenotypes caused by diverse triggers and pathophysiological mechanisms. Asthma heritability has been established in many genetic studies but it is evident that only genetic elements are not responsible for the development of asthma. Increasing rate of asthma incidence during past decades has impl...

Freight village (FV) is a logistics phenomenon with broad economic, social and environmental consequences. A well organized and knowledge-based planning process is critical to realize sustainable development of FVs, due to its capability to avoid negative phenomena (e.g., unnecessary FV projects, high vacancy rates, unsuitable sites, disturbance to local residents, air and water pollutions) fro...

Hydrogen is readily obtained from renewable and non-renewable resources via water splitting by using thermal, electrical, photonic and biochemical energy. The major hydrogen production is generated from thermal energy through steam reforming/gasification of fossil fuel. As the commonly used non-renewable resources will be depleted in the long run, there is great demand to utilize renewable ener...

important, albeit in certain quarters neglected, factor in life?genital physiolog}^, and in clear language treats of the etiology, semeiology, and therapeutics of impotence. Undoubtedly the author's views regarding the significance of pollutions, and the due exercise of the genital organs, will not meet with unanimous approval ; but, set forth as they are in manifest good faith by one of vast e...