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In this paper, two degradation models are developed in terms of degradation signals of systems with some Wiener diffusion processes under pre-specified periodical calibrations. Some detailed results on two models are given by solving some recursive equations. The system reliability is defined as the probability that the degradation signals do not exceed a threshold value by time . Two methods for...
In the biomedicine domain, a large number of papers are published every day, which is crucial to search for the relevant answers for the user's query. However, documents are not exactly what the users want. Instead, snippets, small segments from the documents, are more proper to meet the requirement of the users. Hence, this paper proposes a biomedical snippet retrieval framework to exactly locate...
Principle of support vector regression method is investigated. Genetic algorithm is adopted to search the optimal SVR parameters to improve the generalization performance of SVR. Then an improved SVR method based on intelligent computing is put forward. At last, the proposed method is used in the prediction of ecological tourism economy. Different kernel functions are used for training data, and the...
This paper studied the modeling and simulation of the public opinion propagation in the small-world network. The public opinion information propagation characteristics were firstly analyzed, and different states of the people in the propagation environment were proposed. Based on that, this paper constructed the public opinion propagation model based on the agent modeling method, and proposed the...
This article studies contract design problems. Based on the introduction and analysis of existing contract models and contract design methods, introduces and analyzes the detailed design thoughts, methods and models of complete contract, compares the basic assumption of complete contract and incomplete contract, and analyzes the reasons of incompleteness. Besides, the article also introduces and analyzes...
A tumor in a normal tissue will introduce some significant physiological and pathological changes to the adjacent normal tissues. To quantitatively study how the tumor affects the partial oxygen pressure (PO2) distribution in a normal tissue, an improved Krogh's cylinder model that is more realistic than an assumption of homogeneous PO2 distribution in a certain region is used to describe the oxygen...
The regulation of human behavior by institutions can be deemed as a process of social choice, in which specific social choice rules attain the objective of institution design by governing human choices. This paper provides a new framework of institution design — institution design based on social choice, which avoids the “black box” dilemma in institution design. The paper discusses the key issues...
Microbial biofilms are encountered in a wide variety of applications, especially in wastewater treatment systems. Biofilm dynamics in wastewater treatment has been paid much attention, and the simulation of the biofilm growth has been studied with many approaches in recent years. To simulate the real microbial biofilm growth, this paper proposed the confined diffusion limited aggregation (DLA) models...
The concentration of chlorophyll-a can reflect water quality to some extent. An approach for the determination of chlorophyll-a from field reflectance spectra was presented in the Xuanwu Lake. The reflectance spectra was measured from April to May in 2009 with FieldSpec 3 portable spectrometer, and water samples were collected directly from the lake to be analyzed in lab. Using correlations between...
In the cultivation and management process of the college student journalists, there are lots of factors remain unclear. To promote the research in this field, we have studied process of the cultivation and management process of the college student journalists by qualitative technique, which is an effective and challenging simulation paradigm. Using qualitative methods, we considered the interaction...
A B2B electronic marketplace (e-marketplace) can theoretically create much business value, but the realization of this value depends on its successful adoption. Since the adoption of the e-marketplace involves multiple aspects, it is necessary to explore a set of critical factors that determine the adoption decision. This research proposes such a set of factors from both transactional and relational...
The present study was undertaken to evaluate the feasibility of Pseudomonas alcaligenes biomass for the removal of strontium ions from aqueous solutions. Batch experiments were performed to study the adsorption of strontium on pH, Pseudomonas alcaligenes biomass adsorbent with respect to initial Sr(II) concentration, contact time and biomass dose. The experimental data were modeled by Langmuir and...
Prior research in IS offshoring has highlighted issues in software development projects arising from differences in culture, from status differences and resource inequalities, as well as from asset-related characteristics. Based on Practice Theory and Transaction Cost Economics, we integrate these three perspectives into a single research model explaining the relation between the outcome of offshore...
With the development of the economy, ice and snow tourism has became a hot issue of tourism industry, and the development of the ice and snow tourism has been paid more and more attention. How to accurately understand the synergy mechanism of ice and snow tourism resources value is the precondition of scientifically developing ice and snow tourism resources and promoting the development of ice and...
Aiming at the reverse bullwhip effect in reverse supply chain (RSC), a non-cooperative stackelberg model is set up with agreed collection volume. The centralized, decentralized and coordinated systems are brought out successively and the operation mechanism is analyzed afterwards. With the developed expense-sharing contract as the object of the study, the fact is proved that the RSC with collection...
An economic reactive power compensation approach for the railway power line is proposed in this paper. With simulation based on PSCAD/EMTDC platform, the peculiarity of only inductive reactive power compensation is needed for the power through line revealed, which means dynamic compensation devices are not necessary, although the reactive power characteristic of the all cable power through line switches...
In wastewater treatment plants, It's difficult to acquire online data of BOD5 (Biochemical Oxygen Demand for 5 days) due to its characteristic and unreliability of on-line sensors. Furthermore, although soft sensors models are widely used in wastewater treatment, only a few approaches for soft sensors models are designed to address the problems currently existing in the wastewater treatment. In such...
In this paper, we not only analyze the current characteristics of the urban rail transit affiliated commercial circles based on their operating status, but also propose measures on optimizing operating status of its logistics system, suggesting that the whole commercial circles should be jointed for the establishment of a unified logistics center, in which goods are distributed and recycled through...
This paper first analyzed the characteristics of collaborative research in biological industry, and defined research team collaborative eco-efficiency according to the perspective of sustainable development. Second, proposed the corresponding metrics as following: (1)Completion efficient of the project; (2) Quantity and quality of results; (3)The contribution force on technological innovation; (4)The...
This research aims at assessing the value relevance of fundamentals in listed agribusiness firms in China. Due to the particularity of the agricultural industry, the quality of the fundamentals draws concern from investors and regulators, who have been questioning the trustworthiness of the fundamentals. In this paper, correlation between the accumulative abnormal returns and the unanticipated fundamentals...
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