32位动态链接库的设计与调用技术     

解建军  李俊红 《贵州教育学院学报》2000,11(4):39-42,54

分析了Ｗｉｎｄｏｗｓ环境中动态链接库的运行方式,讨论了动态链接库设计和实现中应当注意的细节,给出了利用Ｖｉｓｕａｌ Ｃ＋＋ ６．０开发３２位动态链接库,并用Ｖｉｓｕａｌ Ｃ＋＋、Ｖｉｓｕａｌ Ｂａｓｉｃ应用程序引用动态链接库函数的实例。  相似文献   

Experienced physical education teachers reaching their "use-by date": powerless and disrespected     

Whipp PR  Tan G  Yeo PT 《Research quarterly for exercise and sport》2007,78(5):487-499

With the needs of experienced teachers potentially overshadowed by a focus on recruitment, the purpose of this study was to retrospectively explore the reasons why three experienced physical education teachers resigned. They were interviewed through Louis and Smith's (1990) quality of work life (QWL) model. Data suggested shared dissatisfactions related to the lack of "genuine" opportunities to participate in educational debate and decision making, and limited professional respect shown by administrators and parents. A physical education teacher's "use-by date" was proposed. Unless these issues are further explored and addressed, quality teachers will continue to abandon the service.  相似文献   

A high-dexterity low-degree-of-freedom hybrid manipulator structure for robotic lion dance     

I-Ming CHEN  Song-huat YEO 《浙江大学学报(A卷英文版)》2010,11(4):240-249

Lion dance is a very popular and lively Chinese traditional art form. A robotic project in Singapore has been dedicated to the design and demonstration for similar traditional art forms using modern mechatronics technology. This paper deals with a novel six-degree-of-freedom （6-DOF） hybrid manipulator with high stiffness, high loading capability and high dexterity, mimicking the lion dancer＇s upper body motions along with the lion head movements. The design of the hybrid manipulator consists of a 2-DOF torso structure in serial configuration and a 4-DOF dual arm structure in parallel configuration. The combined 6-DOF hybrid manipulator can support the weight and dynamics of the lion head during the lion dance performance. Forward kinematics of the manipulator has been formulated and visualized for design purposes. Inverse kinematics of the hybrid manipulator were analytically derived for real-time motion control. Based on the design and modeling, a complete hybrid manipulator has been fabricated, implemented into the robotic lion, and successfully demonstrated for real robotic lion dance performance.  相似文献   

Contexts,Original Orders,and Item-Level Orientation: Responding Creatively to Users' Needs and Technological Change     

Geoffrey Yeo 《Journal Of Archival Organization》2015,12(3-4):170-185

This article questions traditional assumptions that archival aggregations must always be rigidly defined. Technology allows archival institutions to respond to users' diverse requirements by empowering them to create multiple groupings and variable orders. To take advantage of these capabilities as archives become increasingly digital, a shift toward item-level orientation will be crucial. Users will still need information about context, but the digital future will almost certainly necessitate abandoning current methods in favor of documenting contextual relationships at item level. Respect for “fonds” and original order will retain some value but will no longer be the primary means of capturing context.  相似文献   

Reliability of laser Doppler,near-infrared spectroscopy and Doppler ultrasound for peripheral blood flow measurements during and after exercise in the heat     

Hui C. Choo  Kazunori Nosaka  Jeremiah J. Peiffer  Mohammed Ihsan  Chow C. Yeo  Chris R. Abbiss 《Journal of sports sciences》2017,35(17):1715-1723

This study examined the test-retest reliability of near-infrared spectroscopy (NIRS), laser Doppler flowmetry (LDF) and Doppler ultrasound to assess exercise-induced haemodynamics. Nine men completed two identical trials consisting of 25-min submaximal cycling at first ventilatory threshold followed by repeated 30-s bouts of high-intensity (90% of peak power) cycling in 32.8 ± 0.4°C and 32 ± 5% relative humidity (RH). NIRS (tissue oxygenation index [TOI] and total haemoglobin [tHb]) and LDF (perfusion units [PU]) signals were monitored continuously during exercise, and leg blood flow was assessed by Doppler ultrasound at baseline and after exercise. Cutaneous vascular conductance (CVC; PU/mean arterial pressure (MAP)) was expressed as the percentage change from baseline (%CVC_BL). Coefficients of variation (CVs) as indicators of absolute reliability were 18.7–28.4%, 20.2–33.1%, 42.5–59.8%, 7.8–12.4% and 22.2–30.3% for PU, CVC, %CVC_BL, TOI and tHb, respectively. CVs for these variables improved as exercise continued beyond 10 min. CVs for baseline and post-exercise leg blood flow were 17.8% and 10.5%, respectively. CVs for PU, tHb (r² = 0.062) and TOI (r² = 0.002) were not correlated (P > 0.05). Most variables demonstrated CVs lower than the expected changes (35%) induced by training or heat stress; however, minimum of 10 min exercise is recommended for more reliable measurements.  相似文献   

Pulmonary monoclonal antibody delivery via a portable microfluidic nebulization platform     

Christina Cortez-Jugo  Aisha Qi  Anushi Rajapaksa  James R. Friend  Leslie Y. Yeo 《Biomicrofluidics》2015,9(5)

Nebulizers have considerable advantages over conventional inhalers for pulmonary drug administration, particularly because they do not require coordinated breath actuation to generate and deliver the aerosols. Nevertheless, besides being less amenable to miniaturization and hence portability, some nebulizers are prone to denature macromolecular drugs due to the large forces generated during aerosolization. Here, we demonstrate a novel portable acoustomicrofluidic device capable of nebulizing epidermal growth factor receptor (EGFR) monoclonal antibodies into a fine aerosol mist with a mass median aerodynamic diameter of approximately 1.1 μm, optimal for deep lung deposition via inhalation. The nebulized monoclonal antibodies were tested for their stability, immunoactivity, and pharmacological properties, which confirmed that nebulization did not cause significant degradation of the antibody. In particular, flow cytometry demonstrated that the antigen binding capability of the antibody is retained and able to reduce phosphorylation in cells overexpressing the EGFR, indicating that the aerosols generated by the device were loaded with stable and active monoclonal antibodies. The delivery of antibodies via inhalation, particularly for the treatment of lung cancer, is thus expected to enhance the efficacy of this protein therapeutic by increasing the local concentration where they are needed.  相似文献   

Teacher Preparation and Inner-City Schools: Sustaining Educational Failure   总被引：1，自引：0，他引：1  

Yeo  Frederick 《The Urban Review》1997,29(2):127-143

This article argues that the great majority of teacher education programs have become a sustaining part of urban education's cycle of failure, in particular through the values, stereotypes, and curricular and pedagogical patterns that teacher education inculcates in incipient teachers about difference, minorities, and urban schools and communities. Teacher education's capability lies chiefly in how it understands and treats programmatic minority students, how it encourages a negative perception of urban teaching itself, and how it discourages its students from understanding difference and diversity through the use of an assimilatory multiculturalism, leaving its students stereotypically uninterested in and/or unprepared for urban teaching.  相似文献   

Student and Teacher Perceptions of the Use of Multimedia Supported Predict–Observe–Explain Tasks to Probe Understanding     

Kearney  Matthew  Treagust  David F.  Yeo  Shelley  Zadnik  Marjan G. 《Research in Science Education》2001,31(4):589-615

This paper discusses student and teacher perceptions of a new development in the use of the predict–observe–explain (POE) strategy. This development involves the incorporation of POE tasks into a multimedia computer program that uses real-life, digital video clips of difficult, expensive, time consuming or dangerous scenarios as stimuli for these tasks. The program was created by the first author to be used by pairs of secondary physics students to elicit their conceptions of force and motion and encourage discussion about these views. In this computer learning environment, students were required to type full sentence responses that were recorded by the computer for later analysis by the researcher. Other data sources for this study included audio and video recordings of student discussions, interviews with selected students and their teachers, classroom observations, and student questionnaires. This paper will report on some findings from the study, focussing on student and teacher perceptions of the computer-mediated POE tasks. The findings have implications for the effective use of multimedia to enhance meaningful learning in science classrooms.  相似文献   

eVALUate: an evaluation instrument for measuring students’ perceptions of their engagement and learning outcomes     

Beverley Oliver  Beatrice Tucker  Ritu Gupta  Shelley Yeo 《Assessment & Evaluation in Higher Education》2008,33(6):619-630

In the current climate in Australian higher education, quality assurance in university teaching is a priority. In particular, the introduction of the Learning and Teaching Performance Fund (LTPF) has refocused attention on universities’ internal student evaluation survey instruments. This paper reports the development, validation and implementation of a new unit survey instrument which prompts students to reflect on what helps their achievement of unit learning outcomes, and to report their levels of motivation, engagement and overall satisfaction with a semester‐long course or unit of study. The instrument (eVALUate) was created from precepts reported in the research literature, current practices in evaluating teaching, and sound quality assurance practices appropriate to a university outcomes‐focused education paradigm.  相似文献   

The Development of Diploma in Education Student Teachers’ Mathematics Pedagogical Content Knowledge     

Suat Khoh Lim-Teo  Kwee Gek Chua  Wai Kwong Cheang  Joseph K. Yeo 《International Journal of Science and Mathematics Education》2007,5(2):237-261

Mathematics pedagogical content knowledge (MPCK) of teachers cannot be easily defined but is a complex concept integrating generic pedagogical knowledge, mathematics teaching methodology as well as knowledge of the discipline of mathematics. It is the objective of mathematics methodology courses in teacher preparation programmes to begin the development of MPCK in their pre-service teachers. As part of a research study on the development of MPCK in primary school beginning teachers, a 16-item instrument was developed to measure some aspects of the MPCK for teaching mathematics at primary level. The instrument was administered to the 2003 Intake of the Diploma in Education student teachers at the National Institute of Education, Singapore just at the beginning of their programme. As they completed their methodology course in February 2005, the instrument was administered again. This paper will discuss the findings concerning their performance in these two tests, with reference to the overall performance as well as topic-specific and MPCK construct-specific performance. The findings indicate that student teachers at the beginning of their programmes are generally quite weak in their mathematics pedagogical content knowledge, as might be expected. There was significant improvement in some aspects of their MPCK on completion of their mathematics pedagogy course.  相似文献