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The aim of this research is to analyse the learning habit of the undergraduate mechanical engineering students in the second semester and compare it within the last five years. My personal experience shows the big part of the students until the present period do not have learned the teaching material week in week out and just have visited the presentations or simply stayed at home. The situation is...
In this paper, approaches to develop subspace-based classifiers for material based signal classification are presented. Material based signal classification is essential in many applications for the identification of the cause of the acoustic signal. Four approaches are presented in this paper for classification. They are namely, classification via eigen-filter characteristics, eigenvector projection...
Terahertz (THz) has been well known for its unique ability to propagate through non-polar packaging material. At the same time, THz wavelengths are small enough to provide meaningful imaging resolution, leading to their large potential in non-destructive evaluation. Correlation processing is a technique that has been shown to detect phase resonances in illicit chemicals, and in this paper, is extended...
Recently both game industry professionals and academic researchers have started focusing on player-generated behavioral data as a mean to gather insights on player psychology through datamining. Although some research has already proven solid correlations between in-game behavior and personality, most techniques focus on extracting knowledge from in-game behavior data alone. This paper posits that...
Stereoscopic Warehouse plays an important role in the modernization of the logistics field. It is characterized by an informatization, automation, high efficiency, and often used in regional distribution center. In some special occasions or due to special field, the stereoscopic warehouse must be with tandem storage space in the reason that putting all of the racks parallelly in a single storage requires...
When damage tolerance based design and analysis of crack growth process are carried out based on the experimental data, there exist great uncertainties for model parameters, if these parameters were considered to determined value, it will cause a large predicted error. Moreover, if the correlation between these parameters are ignored or not be considered, the scatter of parameters cannot be captured...
The electromechanical coupling phenomenon in CNC machine tool has an important influence on the dynamic precision of the feed system. The complicated dynamic characteristics and their evolutions with different parameters will aggravate the research difficulty of the electromechanical coupling mechanism. In this paper, taking SL250 lathe as the research object, the servo torque and mechanical structure...
Electronic devices are nowadays an integral part of our everyday lives. The number of discarded electronical items has grown significantly over the last years. As the amount of precious materials used in the manufacturing of these devices has increased over the last years recycling of these devices is becoming more and more important. Currently the processes to regain some of these precious materials...
Internal control level directly affects the quality of financial report of a firm and CPA's audit input and risk. Do CPAs take such a relation into account when they decide the level of audit fees charged to firms? In this paper, the author conducts an empirical study on the relationship between the internal control quality, audit risk and audit fees, using a sample of 1395 companies listed on Shanghai...
The success of emergency supplies response often needs collaborative cooperation between related emergency departments. Because of its functions on emergency supplies response, the response process can be high efficiency. This paper mainly illustrates the processes of collaborative allocation of emergency supplies under power grid emergency. It is a research on finding out the failure factors which...
Light incident on a scattering medium is redistributed over transport channels that either transmit through or reflect from the medium. We perform experiments aiming at finding individual transport channels of extremely strongly scattering materials. A small number of transport channels in a scattering sample are open with transmission coefficient close to 1; field transmission mainly takes place...
The non-destructive technique (NDT) such as for determined the velocity is an easy technique to apply and they are increasingly being used in geotechnical engineering. Most researchers studied the relations between rock properties and velocity and found that the velocity is closely related with rock properties. Wave velocity can be measured directly or indirectly in the laboratory. In this study,...
We report the first observation of stable single photon sources in an electronic and photonic device-friendly material, silicon carbide (SiC). SiC is a viable material for implementing quantum communication, computation and photonic technologies.
An unsupervised band selection method for hyperspectral images is proposed in this article. Three steps are followed to carry out the algorithm. In the first step, characteristics (attributes) of the bands are generated. Next, redundancy among the bands is removed by using clustering. DBSCAN algorithm is used for clustering the bands. One representative band is selected from each cluster. Finally,...
Information and Communication Technologies play major role in all types of day to day life activities including Government, public and social domains. The need for HCI aspects to be taken care in these activities has become a predominant one. Especially, incorporating HCI features in the academic environment is getting more attention. In the case of reading materials associated with any type of academic...
The paper introduces a "lazy" Data Mining technology, which models students' learning characteristics by considering real data instead of deriving ("guessing") their characteristics explicitly. In former work, the authors developed a modeling system for university learning processes, which aims at evaluating and refining university curricula to reach an optimal learning success...
This paper presents an experimental study that explores the effects of background music on freehand drawing. In the experiment, two types of background music and two themes for freehand drawing were prepared. To control the consistency of these materials, we used a 2 (background music: dark vs. cheerful) Ã -- 2 (themes: dark vs. cheerful) mixed factorial design. In the experiment, the participants...
We propose an approach to simultaneously identify the speed of sound (SOS) in a flat homogeneous material specimen and its thickness by means of ultrasound. Basically, the setup operating in transmission mode consists of an ultra-sound transducer and an opposed hydrophone. In contrast to common approaches, where short broadband pulses are utilized, the ultrasound transducer is here excited with a...
Bioresource utilization represents an important interdisciplinary research that integrates academic and industrial expertise across diverse scientific domains, including physics, chemistry, biology, and engineering. The present paper describes a cyber-infrastructure being created at the Brazilian Bioethanol Science and Technology Laboratory (CTBE) to assist scientists working on the field. One key...
Engineering instructors seek to gauge the effectiveness of their instruction. One gauge has been to use standardized tests, such as concept inventories and to quantify learning as the change in score over the semester. Here we question whether that approach is always the best practice for gauging the effect of instruction, and we propose an alternative of administering different tests at the start...
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