3,454 research outputs found
Research on the Motivation and Attitude of College students' Physical Education in Taiwan
College students' physical education plays an important role in physical activity and cultivates the concept of independent health management. At present, what kind of learning attitude do Taiwan college students face in physical education? What motivation does the student influence the attitude of the physical education? What is the relevance? All of the above are the purpose of this study. The research method adopts the questionnaire survey method, and the survey data adopts descriptive statistical analysis, independent sample t test, single factor variance analysis, LSD post hoc comparison method, and typical correlation analysis. Research results: 1. The different background variables of Taiwanese college students are that the main motivation factor of physical education is to obtain good health fitness for "physical health". 2. Taiwanese college students have different background variables. They all think that the "cognitive learning" of physical education is the main factor of attitude, that is, the knowledge about health care and sports skills. 3. There is a positive correlation between learning motivation and learning attitude (ρ=.90). Learning motivation is one of the important factors affecting learning attitude. Research conclusions: 1. The factors of Taiwanese male and female college students' motivation for learning in physical education are mainly based on "physical health". 2. Freshmen have higher motivations and learning attitudes in physical education than second-grade to fourth-grade. 3. Taiwan female college students average 1 or 2 times per week, male college students have the most athletes 2 to 3 times per week, more than 90% of college students like sports. 4. There is a positive correlation between learning motivation and learning attitude, indicating that the stronger the attribute of learning motivation "physical health", the higher the student's learning attitude. 5. Satisfying students' motivation for learning helps students to learn positively. 6. Another important task of the college physical education class is to prepare students for future lifelong sports
Thermodynamics of Gravity with Disformal Transformation
We study thermodynamics in gravity with the disformal transformation.
The transformation applied to the matter Lagrangian has the form of \g_{\m\n}
= A(\phi,X)g_{\m\n} + B(\phi,X)\pa_\m\f\pa_\n\f with the assumption of the
Minkowski matter metric \g_{\m\n} = \e_{\m\n}, where is the disformal
scalar and is the corresponding kinetic term of . We verify the
generalized first and second laws of thermodynamics in this disformal type of
gravity in the Friedmann-Lema\^{i}tre-Robertson-Walker (FLRW) universe.
In addition, we show that the Hubble parameter contains the disformally induced
terms, which define the effectively varying equations of state for matter.Comment: 23 pages, no figure, published version in Entropy 21, 172 (2019
CONVERSER: Few-Shot Conversational Dense Retrieval with Synthetic Data Generation
Conversational search provides a natural interface for information retrieval
(IR). Recent approaches have demonstrated promising results in applying dense
retrieval to conversational IR. However, training dense retrievers requires
large amounts of in-domain paired data. This hinders the development of
conversational dense retrievers, as abundant in-domain conversations are
expensive to collect. In this paper, we propose CONVERSER, a framework for
training conversational dense retrievers with at most 6 examples of in-domain
dialogues. Specifically, we utilize the in-context learning capability of large
language models to generate conversational queries given a passage in the
retrieval corpus. Experimental results on conversational retrieval benchmarks
OR-QuAC and TREC CAsT 19 show that the proposed CONVERSER achieves comparable
performance to fully-supervised models, demonstrating the effectiveness of our
proposed framework in few-shot conversational dense retrieval. All source code
and generated datasets are available at https://github.com/MiuLab/CONVERSERComment: Accepted to SIGDIAL 202
Using Virtual Instrument in Teaching Automatic Measurement Technology Course
The use of an automatic measurement technology is highly important in current industries. The technology has been sued in various applications such as environment monitoring, quality control of production line, and medical disease analysis. Automatic measurement technology requires programming, facilities integration, control application, function innovation, and maintenance technology. Developing suitable teaching equipment that can satisfy the demand of industry-orientation Automatic Measurement Technology Course (AMTC) is a challenge. In this study, a virtual instrument is introduced to solve the problem. LabVIEW, which is utilized to design virtual instruments, provides powerful functions for instrument control and measurement. Therefore, in this proposed AMTC, anbsp LabVIEW-based virtual instrument system is established as teaching equipment for undergraduate students in colleges of engineering or technology
Observation of Bulk Fermi Arc and Polarization Half Charge from Paired Exceptional Points
The ideas of topology have found tremendous success in Hermitian physical
systems, but even richer properties exist in the more general non-Hermitian
framework. Here, we theoretically propose and experimentally demonstrate a new
topologically-protected bulk Fermi arc which---unlike the well-known surface
Fermi arcs arising from Weyl points in Hermitian systems---develops from
non-Hermitian radiative losses in photonic crystal slabs. Moreover, we discover
half-integer topological charges in the polarization of far-field radiation
around the Fermi arc. We show that both phenomena are direct consequences of
the non-Hermitian topological properties of exceptional points, where
resonances coincide in their frequencies and linewidths. Our work connects the
fields of topological photonics, non-Hermitian physics and singular optics, and
paves the way for future exploration of non-Hermitian topological systems.Comment: 7 pages, 4 figure
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