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This study provides a theoretical basis for use of Auricularia polytricha hyphae as an adsorbent for removal of heavy metal cadmium from aqueous solution. Adsorption effect was studied from suitable pH, application dosage, biosorption time and the initial concentration of cadmium. Little biosorption of metalions was observed for pH < 3.0. The cadmium removal capacity increased very sharply with...
One challenge in laparoscopic cholecystectomy surgery simulation is to construct a fast and accurate deformable gallbladder model. This paper proposed an improved multi-layer mass-spring modeling method which can adapt well to the built-in accelerating algorithms in PhysX-engine of GPU. A multi-layer mass-spring model was constructed based on the surface mesh of a gallbladder. The inner layers of...
The current ubiquity of information coupled with the reliance on such data by businesses has led to a great deal of resources being deployed to ensure the security of this information. Threats can come from a number of sources and the dangers from those insiders closest to the source have increased significantly recently. This paper focuses on techniques used to identify and manage threats as well...
A challenge in virtual reality based laparoscopic cholecystectomy simulation is to construct a fast and accurate deformable gallbladder model. This paper proposes a multi-layer mass-spring model which can adapt well to the built-in accelerating algorithms in PhysX-engine of GPU. The gallbladder is first segmented from clinical CT images. A multi-layer model based on the anatomical structure of gallbladder...
Warpage evolution of an overmolded BGA package either under uniform temperature excursion or during post-mold curing process is analyzed by using finite element simulation with a cure-dependent viscoelastic model for the molding compound. Additional finite element analyses are performed to compare molding compound constitutive behavior (temperature-dependent elastic or viscoelastic) on the package...
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