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An important question is how to determine if a person is exhibiting suicidal tendencies in behavior, speech, or writing. This paper demonstrates a method of analyzing written material to determine whether or not a person is suicidal. The method involves an analysis of word frequencies that are used in a fuzzy cognitive map. The fuzzy cognitive map determines if there are suicidal tendencies. The method...
With the fast development of multimedia network technology and speeding increase of network bandwidth, all kinds of electronic learning have already become popular. However e-learning is often faced with the difficult in how to annotate the important parts for the reading content. Although there are some researches about annotation system, few of annotation system has explore the relationship among...
Body balance function is an important ability for forest firefighters in firefighting tasks using forest fire suppression hand pumps. In order to study the influence of style and weight of water bag on body balance in forest firefighting, this paper assesses the physiological and perceptual responses of three types of water bags, by tests of balance function and perception assessment. Variance analysis...
The ability of hand operation is an important part of ergonomics. The evaluation of hand works is theoretically and practically important to both the evaluation of human hands potential and ergonomically design of tools. The research is based on the theory of anthropometry and ergonomics, a set of device of hand operating capacity is designed through research of basic method and step of hand operating...
In this paper, tailor-welded blanks (TWBs) of three dissimilar gages for the automotive body inner side panel were analyzed. The basic mechanical properties were measured through the tensile test. Based on this, a method of ??rule of mixtures?? for measuring the properties of weld metal in TWBs was introduced. Moreover, the error between the calculated results and the measured data for the weld-line...
The selection of software technologies represents a risk factor to a software project. Therefore, using tailored software technologies to support this task can contribute to reduce the risk of inadequate choices made by software engineers. This paper presents the results of an experimental study conducted to evaluate if three dependent variables (selection time, % of correct choices, and used information)...
The model of a novel drug delivery device of gastrointestinal microcapsule in a gas pressure driving way is proposed. The model experiments have been carried out to investigate into the main factors impacting on the performance of capsule, such as ultrasonic frequency, the relationship between the quantity and reaction time of the selected reactants, the relationship between the carried drug capacity...
Testing database applications is crucial for ensuring good quality software as undetected faults can result in unrecoverable data corruption. SQL is the most widely used interface language for relational database systems. Our approach aims to achieve better testing by selecting fault revealing databases. We propose the use of mutation analysis on SQL statements and discuss two scenarios for applying...
Writing effective and efficient exams is a crucial component of the teaching and learning process. Exams are a common approach to assess student learning and the results are useful in a variety of ways. Most often, results are used to provide students with feedback on what they have learnt or to evaluate the instructional effectiveness of a course. Certainty-Based Marking (CBM) scores an objective...
On the characteristics of complex rare-earth extraction process, difficult system craft operation, achieving hardly automatic control technology, and inaccessibility to on-line component content, the paper lodge a technology for the extraction of rare earth based on the case based reasoning (CBR) technology with rough-set. It can optimize the manual enactment in the rare-earth extraction process in...
Mechanical properties are the attributes of a metal to withstand several forces and tensions. Specifically, ultimate tensile strength is the force a material can resist until it breaks. The only way to examine this mechanical property is the employment of destructive inspections that renders the casting invalid with the subsequent cost increment. In a previous work we showed that modelling the foundry...
This paper analyzes the characteristics of the traditional DEILPHI method, pointing out that the method has the shortcomings of strong subjectivity, complex data acquisition, and lack of real-time circumstance-specific solutions. It proposes an improved DEILPHI method based on objective preferences. According to the characteristics of evaluation indicators and the specific situation of actual evaluation...
This paper investigates the degradation behaviour of lead-free Sn96.5Ag3.0Cu0.5 solder. A series of isothermal mechanical cycling tests under different conditions has been conducted. The tests were monitored in-situ with a high magnification camera system. Optical observations are presented from selected tests, showing the surface morphology during testing. In addition to the optical investigation,...
A percussive digging system has been demonstrated to decrease the amount of downforce needed to penetrate a given soil, thus reducing the required reaction loads and robot mass. Preliminary testing of a percussive digging system in compacted lunar regolith simulant, JSC-1A, has demonstrated a 15 x (fifteen times) reduction in the downforce necessary to penetrate the regolith. Downforce reductions...
All kinds of studies over the network, from a rather macroscopic perspective, are considered network study. It means, in other words, that learners achieve the goals of learning activities through the medium of network. But the problem is that learners may do this intentionally or unintentionally. This kind of general concept of learning exists not only in the network era but also in any past times...
Performance engineering is a badly needed skill for implementing and running IT systems, but performance engineers are hard to find in the market. This paper presents our experiences in rolling out training and certification in a first level course on performance engineering across a large enterprise. We present data and lessons learned on the nominations for the rollout, the design and analysis of...
Understanding information graphics rely on thought process of graphics' reader, and thinking has the most important role in interpretation and exploitation. We are interested in the cognitive mechanisms underlying interaction with information graphics. In this study, we studied those cognitive processes which are employed when interacting with information graphics. Based on these experiments, we have...
Ultimate tensile strength (UTS) is the force a material can resist until it breaks. The only way to examine this mechanical property is the employment of destructive inspections with the subsequent cost increment. Modelling the foundry process as an expert knowledge cloud allows properly-trained machine-learning algorithms to foresee the value of UTS. Extending previous research that presented outstanding...
Acoustic emission testing technique is a dynamic testing technology. In this paper, the relationship between the cumulative energy of acoustic emission and lower cycle reversal loads is studied based on results of the experiments on underwater concrete columns, and waveform acoustic emission signal of different destruction states is picked up. Spectrum analysis is carried out, the results of which...
Along with explosive growth of the IT and Internet, they have led much development on education, such as e-learning, distance learning and on-line learning etc., which provide learners with another better alternative for learning at anytime and anywhere. Practically, the essence of the Information technology application on education is that Learning is the essential and the technology is the auxiliary...
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