Shuguang Wang

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A bioflocculant-producing bacterium was isolated from soil and identified as Serratia ficaria. Using optimized culture conditions a flocculating activity of 95.4% was obtained. It was found to be effective for flocculation of a kaolin suspension over weakly acidic pH (5-7); divalent cations (Ca2+ and Mg2+) enhanced the flocculating activity, while the(More)
BACKGROUND & AIMS The aim of this study was to compare the efficacy of radiofrequency ablation (RFA) with surgical resection (RES) in the treatment of small hepatocellular carcinoma (HCC). METHODS A total of 168 patients with small HCC with nodular diameters of less than 4 cm and up to two nodules were randomly divided into RES (n=84) and RFA groups(More)
[1] Variations in deep convective activity during the 4month Tropical Ocean Global Atmosphere-Coupled Ocean Atmosphere Response Experiment (TOGA-COARE) field campaign are simulated using a cloud-resolving model (CRM). Convection in the model is coupled to large-scale vertical velocities that are parameterized using one of two different methods: the damped(More)
It is well known that vertical wind shear can organize deep convective systems and greatly extend their lifetimes. Much less is known about the influence of shear on the bulk properties of tropical convection in statistical equilibrium. To address the latter question, the authors present a series of cloud-resolving simulations on a doubly periodic domain(More)
In many advanced database applications (e.g., multimedia databases), data objects are transformed into high-dimensional points and manipulated in high-dimensional space. One of the most important but costly operations is the similarity join that combines similar points from multiple datasets. In this paper, we examine the problem of processing K-nearest(More)
An algorithm is proposed, which combines Zero-pole Model and Hough Transform (HT) to detect singular points. Orientation of singular points is defined on the basis of the Zero-pole Model, which can further explain the practicability of Zero-pole Model. Contrary to orientation field generation, detection of singular points is simplified to determine the(More)
AIM To determine the clinical, radiographic and laboratory characteristics, diagnostic methods, and therapeutic variables in immunocompetent patients with tuberculosis (TB) of the pancreas and peripancreatic lymph nodes. METHODS The records of 16 patients (6 male, 10 female; mean age 37 years, range 18-56 years) with tuberculosis of the pancreas and(More)
As the nanotechnology field continues to develop, assessing nanoparticle toxicity is very important for advancing nanoparticles for biomedical application. Here we report cytotoxicity of gold nanomaterial of different size and shape using MTT test, absorption spectroscopy and TEM. Spherical gold nanoparticles with different sizes are not inherently toxic to(More)
One of the major problems in question answering (QA) is that the queries are either too brief or often do not contain most relevant terms in the target corpus. In order to overcome this problem, our earlier work integrates external knowledge extracted from the Web and WordNet to perform Event-based QA on the TREC-11 task. This paper extends our approach to(More)
OBJECTIVE To evaluate the effects of primary duct closure and T-tube drainage in laparoscopy choledochotomy to treat the common bile duct stones. METHODS The enrollment of the patients was in accordance with 6 criteria. 55 patients with cholecystolithiasis and secondary common bile duct stones from January 2000 to February 2003 were treated with(More)