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There have been increasing demands for stretchable and highly sensitive sensors for use in structural health monitoring, human motion capturing, sport performance monitoring and rehabilitation. Such high performance myoelectric sensors are also remarkably important in developing artificial limbs where a combination of robotic actuators and sensory systems are required to provide lifelike, affordable,...
Photonic ring-resonators are key components of many on-chip optical-interconnect wavelength division multiplexing (WDM) network architectures. Thermal interactions between on-chip heat-sources and ring resonators pose significant operational and integration challenges, as these devices are extremely sensitive to temperature-induced changes in refractive index. Contemporary literature proposes active...
An exact solution is developed for the radial vibration characteristics of functionally graded piezoelectric cylindrical transducers. The material properties, such as mass density, elastic, piezoelectric and dielectric constants, are assumed to be the power-law functions of radial position. The material nonhomogeneity index of mass density can be different from that of elastic, piezoelectric and dielectric...
In order to answer questions arising from the deeper application of flipped classroom, our study proposed an instructional design framework of "flipped classroom on the basis of understanding". In pursuit of facilitating students' understanding, teachers could combine the theory of teaching for understanding with the flipped classroom pattern, reform their teaching beyond flipping classroom...
The product configuration design is a customization product design technology used in an intelligent design system. An intelligent artwork customization design system named 3D Artwork Design System (ADS) has been developed by us. In the system, how to choose the optimal scheme from several ones produced in the system is a problem to be solved. Analytical Hierarchy Process (AHP) is one of the best...
Polarimetric and hyperspectral imaging are two of the most frequently used remote sensing modalities. While extensive work has been done in both fields independently, relatively little work has been done using both in conjunction with one another. Combining these two common remote sensing techniques, we hope to estimate index of refraction, without a priori knoweledge of local weather conditions or...
This paper represent a design and simulation of a simple photovoltaic water pumping system that employs the maximum power point tracker(MPPT), a DC-DC boost converter and a DC pump motor. The main goal of this paper is to prove that fuzzy logic controller is the most effective to track the maximum power by comparing it to the most used MPPT algorithm Perturb & Observe (P&O).
This paper describes a large-scale study of student use and perceived value of videos of faculty lectures as an additional learning resource. The survey-based study was conducted with ∼2,300 college students in biology, chemistry, computer science, geology, and mathematics. The study provides a nuanced understanding of the nature and frequency of students' video usage; student perceptions of value...
The maintenance of public lightning equipments is an important and frequent activity of power utility company in Brazil. This service is usually executed using a truck with aerial bucket or a manual ladder. Despite the bucket truck being consolidated as a versatile device for several tasks across the electricity network, it still presents disadvantages such as the difficult on using it in urban areas...
By using existing metal mesh technology we propose a new lens design that behaves in a similar way to a Wollaston Prism. That is, a device that separates out the two linear polarised states of the incident field and then focuses them separately on same focal plane. The design is an evolution of an existing GRIN lens based on the same technology. The proposed lens design has a diameter of 75mm while...
The application of non-destructive testing (NDT) in the analysis of trees in forest plantations permits the evaluation of the wood quality, the internal defects in development or pest attack and its characterization for application as solid wood and its products. These techniques have been constantly improved with the use of computers, electronics and agricultural control levels in order to provide...
In the modern society, education is increasingly changing standards according to people needs, forcing young people to know more. We have many methodologies of teaching, but the most effective is using instruments, that well known to audience. Therefore, it will be productive to use technologies in learning and education processes to increase interest of students towards the different subjects. This...
The far-field divergence of Tapered THz quantum cascade lasers is studied experimentally and theoretically. A abnormal increase of the divergence has been found with either increasing the tapered angle or the device's length. Then we want to answer either the thermal accumulation or the nonlinearity of the material account for it. Theoretical analysis suggests that the field-induced change of the...
The paper used solar energy for heating in the region where the solar energy was rich combined with paraffin phase change thermal energy storage technology in winter. The paper mainly discussed the technology feasibility on two schemes, using whole year solar energy after storing energy by paraffin in winter heating period and using some colder daytime solar energy in supplying heat after storing...
A learning style index is a model that can help learners to identify their learning preferences and hence adopt suitable learning materials that can enhance their learning process. On the other hand, teachers also can gain by knowing their students' learning preferences. It helps them to prepare a suitable teaching styles and materials that can fit with their students' preferences. This paper is concerned...
A good indexing of the learning objects is the better way to guarantee their reuse in the distance-learning context. We need to supply each content of a machine-understandable description including both technological and pedagogical information able to declare requirements and limits for its right use and to improve any research and delivery action. These descriptions are stored in the metadata: standard-based...
We experimentally evaluated the effect of display resolution on physiological and psychological state while viewing video content at 4K and 2K on a 65-inch 4K TV. Four kinds of video content (two types of scenic material and two types of material with movement and action) were used. Each program comprised two minutes of 4K and two minutes of 2K content. The results showed that the scores for “presence,”...
In this article, based on grey relational analysis method, relational polarity analysis for the anti-respiratory syncytial virus effect of compositions from Baikal skullcap root was studied. The compositions with reinforcement effect on the therapeutic index of anti-respiratory syncytial virus were found and ranked.
Comfort, appearance and price are important factors for users when purchasing a pair of new shoes. And shoes comfort is more and more emphasized with the improvement of people's quality of life. But there do not exist any standards for shoes comfort. In this paper, a fuzzy comprehensive evaluation model is studied based on the evaluation index system of shoes comfort. The result shows that the fuzzy...
Pulmonary embolism (PE) affects up to 600,000 patients and contributes to at least 100,000 deaths every year in the United States alone. Diagnosis of PE can be difficult as most symptoms are unspecific. Computed Tomography (CT) angiography is the reference for diagnosing PE. CT angiography produces grayscale images with darker areas representing any mass filling defects, making the analysis of the...
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