Investigating learners' engagement and science learning outcomes in different designs of participatory simulated games     

Silvia Wen-Yu Lee  Meilun Shih  Jyh-Chong Liang  Yi-Chen Tseng 《British journal of educational technology : journal of the Council for Educational Technology》2021,52(3):1197-1214

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国产苦荬菜类群的分类     

石铸 《中国科学院研究生院学报》1993,31(6):533-548

 本文采用狭义概念，将苦荬菜类群(Ixeris group)处理为4个属，即苦荬菜属Ixeris Cass．沙苦荬属Chorisis DC．小苦荬属Ixeridium(A．Gray)Tzvel．及黄瓜菜属Paraixeris Nakai并提供了分属、种检索表。文中记载了3个新种及7个新组合种。  相似文献   

A group decision approach to developing concept–effect models for diagnosing student learning problems in mathematics     

Gwo‐Jen Hwang  Patcharin Panjaburee  Wannapong Triampo  Bo‐Ying Shih 《British journal of educational technology : journal of the Council for Educational Technology》2013,44(3):453-468

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Measuring kinematic changes of the foot using a gyro sensor during intense running     

Yo Shih  Chih-Shan Ho 《Journal of sports sciences》2013,31(6):550-556

Abstract

Gyro sensor has been used to measure foot pronation during running with reliable results in previous studies, and the signals were not affected by the vibration of heel strikes. The purpose of this study was to observe the kinematic changes of the foot during intense running using a 3-axis gyro sensor. Fifteen male participants (average age: 24.5 ± 1.7 years; mean height: 174.1 ± 3.3 cm; mean body weight: 71.0 ± 5.5 kg) were recruited in this study. Foot kinematic changes were observed in 30-min intense running protocols. The comparisons of the signals from gyro and motion analysis system were also performed to determine the accuracy of the gyro and showed positive results. In the main experiment, the ankle range of motion (ROM) in the frontal plane, measured using a motion system, showed a significant increase over time. Accordingly, peak angular velocity in the frontal plane also showed a significant increase. The correlation between ankle ROM and peak angular velocity in the frontal plane is significantly high (r = 0.975). Moreover, peak angular velocity in the frontal plane is also significantly correlated with both rate of perceived exertion (RPE) (r = 0.911) and heart rate (r = 0.960). This study concluded that an alarm system for foot kinematic changes related to running injuries can be built based on the peak angular velocity of the foot in the frontal plane.  相似文献   

Judgment criteria for the authenticity of internet book reviews     

Yun Kuei Huang  Wen I. Yang  Tom M.Y. Lin  Ting Yu Shih 《Library & information science research》2012

In-depth interviews and genre analysis were conducted to derive the genre characteristics of commercial and noncommercial Internet book reviews in order to explore the judgment criteria for commercial (i.e., fake) and noncommercial (i.e., authentic) Internet book reviews. An empirical investigation was then performed to confirm which genre characteristics could serve as judgment criteria. Results indicated that structure and format, attributes of content, information orientation, number of words, lexical richness, personal pronouns, and paralinguistic features can provide useful clues to judgments. Moreover, commercial Internet book reviews with certain genre characteristics may hide their commercial intentions. These findings can provide reference for judgment criteria for online readers or librarians who want to select books based on objective book reviews, or on Internet bookstore marketing strategies that focus on electronic word-of-mouth comments.  相似文献   

Learning Disabilities in Taiwan: A Case of Cultural Constraints on the Education of Students with Disabilities     

Shih‐Jay Tzeng 《Learning disabilities research & practice》2007,22(3):170-175

Learning disabilities (LD) has been recognized as a category of special education in Taiwanese law since 1984, and policies ensure educational services for children and youth who have LD. The official definition and identification criteria established in Taiwan's laws closely correspond with those of the United States, but practice differs, largely influenced by the people's cultural and linguistic background. I discuss these legal and cultural features as well as other matters (e.g., growth and change in professional literature on LD). Compared to economically developed countries such as the United States, the educators in Taiwan implement identification procedures, placement, and services at a lower cost. Contents of implementation are introduced in detail. The prevalence rate of LD has been very low (<1 percent). I examine culture‐ and/or society‐specific reasons for low prevalence, such as Chinese orthography, regular teachers' compliance with referral procedures, the education‐first belief of parents, and problems with identification procedures.  相似文献   

Patch-guided facial image inpainting by shape propagation     

Yue-ting Zhuang  Yu-shun Wang  Timothy K. Shih  Nick C. Tang 《浙江大学学报(A卷英文版)》2009,10(2):232-238

Images with human faces comprise an essential part in the imaging realm. Occlusion or damage in facial portions will bring a remarkable discomfort and information loss. We propose an algorithm that can repair occluded or damaged facial images automatically, named ‘facial image inpainting＇. Inpainting is a set of image processing methods to recover missing image portions. We extend the image inpainting methods by introducing facial domain knowledge. With the support of a face database, our approach propagates structural information, i.e., feature points and edge maps, from similar faces to the missing facial regions. Using the interred structural information as guidance, an exemplar-based image inpainting algorithm is employed to copy patches in the same face from the source portion to the missing portion. This newly proposed concept of facial image inpainting outperforms the traditional inpainting methods by propagating the facial shapes from a face database, and avoids the problem of variations in imaging conditions from different images by inferring colors and textures from the same face image. Our system produces seamless faces that are hardly seen drawbacks.  相似文献   

The centrifugal viscometer     

Chih-Hsin Shih  Chia-Chin Chang  Chung-Yi Liu  Ho-Chin Wu 《Biomicrofluidics》2021,15(5)

In this study, a viscometer, which can measure the viscosity of low-volume liquids (25 μl) within 30 s, was developed on a centrifugal platform. The centrifugal viscometer consists of a disk platform and a motor. Under disk rotation, centrifugal, Coriolis, and viscosity-induced drag forces result in deflection of liquid flow. The viscosity of the liquid sample is determined by the deflection angle of the liquid, which can be examined through image analysis or visual inspection. The viscosities of a series of Newtonian model fluids were tested by the centrifugal viscometer and the results showed good agreement with the ones tested by a conventional rotational viscometer. Since the centrifugal viscometer only requires a motor to function, the microfluidic disk can be produced in large quantities at a low cost through injection molding, and the deflection angle can be detected through visual inspection, it provides an inexpensive, easy to operate, and portable approach to measure low-volume liquid viscosity.  相似文献   

中国菊科新植物     

石铸 《中国科学院研究生院学报》1995,33(2):181-197

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太行菊属——中国菊科植物一新属     

石铸 《中国科学院研究生院学报》1979,17(3):110-112

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