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SPase is widely used in the food, cosmetics, and pharmaceutical industries. Previously, a SPase gene was cloned from Bifidobacterium longum JCM1217 and constructed into Escherichia coli BL21. In this paper, its expression conditions were optimized. The results showed that several induction factors determined the expression efficiency of SPase. The initial cell density, IPTG concentration, and induction...
The growing demand for video streaming is straining the current Internet, and mandating a novel approach to future Internet paradigms. The advent of Information-Centric Networks (ICN) promises a novel architecture for addressing this exponential growth in data-intensive services, of which video streaming is projected to dominate (in traffic size). In this paper, we present a novel strategy in ICNs...
Aiming the complexity, ambiguity and uncertainty of the Optimization of cold/heat sources for air-conditioning system, the paper presents a optimization model, which is based on maximizing deviations associated with the gray-coupled. Model is based on program evaluation index values of various properties under the objective difference between the empowerment, the decision-making for program optimization...
In this paper, we consider document summarization as a multi-objective optimization problem involving four objective functions, namely information coverage, significance, redundancy and text coherence. These functions measure the possible summaries based on the identified core terms and main topics (i.e. a cluster of semantically or statistically related core terms). We choose the DUC 2005 and 2006...
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