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The paper analyzes the conception and the measuring model of operational availability. For the restrictions of present models' assumptions, an instantaneous operational availability model and an average operational availability model for evaluating material availability together with a simulation method for the two models are put forward. The distinctions between the two models are also given by the...
Radiometric image analysis methods heavily rely on reflectance models. Due to the complexity of real materials, methods based on simple models such as the Lambertian model often suffer from inaccuracy. On the other hand, more advanced models such as the Cook-Torrance model severely complicate the analysis problem. We tackle this dilemma by focusing on the low-frequency component of the reflectance...
In the immediate aftermath of unconventional emergencies, coordination process of the emergency resources involves many complex factors. How to model the coordination process of the emergency resources, to evaluate the decision performance of the process is among one of the most important issues in the real world. We employ the System Dynamics (SD) method to analyze the feedback mechanism and the...
The just-in-time (JIT) delivery is the most important aim of ordnance material supplier direct delivery support (SDDS). However, different profit targets determine the leader-follower game relationship between ordnance material support organization and supplier. Therefore, the objective compatible incentive strategy to supplier should be adopted to improve the capability of JIT delivery. On the premise...
Based on the problems appeared in some infantry fighting vehicle's actual training, this paper combines the advantages of virtual maintenance, proceeds from aspect of system engineering, takes demand of actual training into account, uses Solidworks, 3ds max and EON synthetically, chooses the form of desktop, set up a virtual maintenance training system of the equipment.
The paper presents the results of an analysis of extracted pitch contours of spoken Macedonian across 7 native speakers and 3 discourse contexts. The 125 analyzed intonation phrases (IPs) were taken from a speech corpus recorded for this purpose. Pitch contours were extracted for each of the phrases, and then normalized to the speaker's mode. This allowed group analysis of the contours. In total 8...
Complexity and dynamism of day-to-day activities in organizations are inextricably linked, one impacting the other, increasing the challenges for constant adaptation on the way to organize work to address emerging demands. Market is demanding systems that are aware of organizations processes and able to evolve and adapt to new situations in everyday working activities. We argue that flexibility in...
Using the ANSYS finite element analysis software to establish a SOLID92 as the basic unit of the finite element model. We use ANSYS to analysis the Qianjiaying of Tangshan coal mine shaft sheave, from the quiet intensity of the head sheave to evaluate its safety. It will give reasonable advice for the similar design.
In this paper, near-infrared spectroscopy (NIRS) combined with discriminant analysis was used as a qualitative tool to distinguish Fructus forsythiae from different geographical origins by collecting and analysing the NIR spectra in the range of 12000-4000cm-1. NIR spectra were analyzed by two methods: clustering analysis and discriminant analysis. In the former, the second derivative and Norris smoothing...
Graphene is a very promising electronic material that has attracted vast research interests due to its unique electronic properties [1]. In this paper, a graphene-based FET-like aptamer sensor is modelled for the case of an aptamer that binds to a cocaine surrogate. Methylene-blue (MB) is a nanoscale molecule that functions as an electron donor. The graphene in these structures exhibits p-type semiconductor...
This paper expounds the importance of saving energy of ironmaking system in iron &steel industry, as well as the meaning of exergy analysis. Black box models of exergy analysis are established for pelletizing, sintering, coking and blast furnace process in ironmaking system, and the exergy efficiency and exergy loss are calculated. It reveals the exergy loss types and quantity as well as the effect...
The purpose of this study was to evaluate the effectiveness of using procedural scaffoldings to enhance group discourse levels in a paper-plus-smart phone learning context. Sixty undergraduate and graduate students enrolled at a four-year university in southern Taiwan participated in this experimental study. All participants used built-in camera smart phones to learn new knowledge by scanning QR codes...
Learning guidance after class is an important activity in elementary school because it can help the students to improve their learning achievement. Traditional learning guidance is, however, tedious and unstructured due to its complexity and the burden on teachers. The purpose of this study is to propose a model of two-stage mobile learning guidance based on use of mobile computer devices and a cognition...
We consider the sparse sample goodness of fit problem, where the number of samples n is smaller than the size of the alphabet m. The generalized error exponent based on large deviation analysis was proposed to characterize the performance of tests, using the high-dimensional model in which both n and m tend to infinity and n = o(m). In previous work, the best achievable probability of error is shown...
The low-speed maglev train adopts the single-sided, compound-secondary linear induction motors (LIMs) due to their simple construction and low cost. Since they not only produce thrust force to drive the train, but also the normal force to affect the levitation system, both two forces and their influences are analyzed. Based on an improved analytical equivalent method which considering primary iron...
This paper proposes a Dialectic Analysis Model for Multilateral Argument Games in the open environments, called DAM-MAG, based on dialectic semantics, in terms of the new concept of defensible argument. The DAM-MAG introduces the notion of defensible arguments, and explicitly represents the different internal beliefs of agents and the relations between the "internal beliefs" arguments and...
In this paper a method is presented for mapping the simulation state between models of different level of detail in dynamic multiresolution modeling of discrete event material flow systems. In dynamic multiresolution modeling it is possible to inactivate a model part of certain detail and activate a model of higher or lower detail representing the same part of the system during simulation. To allow...
This paper attempts to highlight shortcomings in the concept of sustainability and ways to make the concept more workable by presenting the development of an Environmental Management Information System (EMIS) as a combination of discrete event simulation and ecological material flow analysis for production processes. The motivation behind the focus on simulation techniques on one hand and on production...
Traditional weapon research project pricing method makes the bigger valuation cost, the more profit research department is got. The weapon research department always loses the driver of saving cost and controlling expenditure. This paper identifies the technology units, evaluates technology risk based on technology readiness theory. According to value engineering methods, it provides weapon research...
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