排序方式： 共有39条查询结果，搜索用时 15 毫秒
31.
在描述BACnet控制器嵌入式系统整个工作流程的基础上,详细介绍了在软件模块设计过程中,服务器TSM的工作原理框架,BACnet控制器的各种服务功能分析,对BACnet-APDU编解码作了介绍。最后给出了基于嵌入式系统开发BACnet控制器的软件框架。 相似文献
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In an earlier training study we found that the use of visual support in phonemic segmentation training provided no additional value for poor readers and spellers from schools for children with learning disabilities, having problems segmenting speech (Kerstholt, van Bon & Schreuder 1994). Previous research (e.g., Hohn & Ehri 1983) suggests, however, that visual support – such as alphabet letters – does facilitate the segmentation teaching of preschoolers. Hence, it was expected that visual support would be beneficial in phonemic segmentation training only prior to formal reading and spelling instruction. The purpose of the present study was to test this expectation. One group of preschoolers was trained in phonemic segmentation with diagrams and alphabet letters as visual support, another group was trained without visual help. Results show the preschoolers to improve their phonemic segmentation, reading and spelling skill significantly. It made no difference, however, whether the children were trained in phonemic segmentation with or without the help of visual support. The findings of the present study and those of our earlier study indicate visual support to be useful in phonemic segmentation training only under certain conditions. It is suggested that differences in orthographic properties of the languages involved may explain the difference between the Anglo-Saxon studies that did show an additional effect of letters and a number of Dutch studies that did not. 相似文献
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We used structural equation modeling to investigate sources of individual differences in oral reading fluency in a transparent orthography, Russian. Phonological processing, orthographic processing, and rapid automatized naming were used as independent variables, each derived from a combination of two scores: phonological awareness and pseudoword repetition, spelling and orthographic choice, and rapid serial naming of letters and digits, respectively. The contribution of these to oral text-reading fluency was evaluated as a direct relationship and via two mediators, decoding accuracy and unitized reading, measured with a single-word oral reading test. The participants were “good” and “poor” readers, i.e., those with reading skills above the 90th and below the 10th percentiles (n = 1344, grades 2–6, St. Petersburg, Russia). In both groups, orthographic processing skills significantly contributed to fluency and unitized reading, but not to decoding accuracy. Phonological processing skills did not contribute directly to reading fluency in either group, while contributing to decoding accuracy and, to a lesser extent, to unitized reading. With respect to the roles of decoding accuracy and unitized reading, the results for good and poor readers diverged: in good readers, unitized reading, but not decoding accuracy, was significantly related to reading fluency. For poor readers, decoding accuracy (measured as pseudoword decoding) was related to reading fluency, but unitized reading was not. These results underscore the importance of orthographic skills for reading fluency even in an orthography with consistent phonology-to-orthography correspondences. They also point to a qualitative difference in the reading strategies of good and poor readers. 相似文献
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The present study examines whether reading fluency benefits more from repeated reading of a limited set of words or from practicing
reading with many different words. A group of 37 reading delayed Dutch children repeatedly read the same 20 words with limited
exposure duration, whereas another group of 37 poor readers received the same reading exercises with 400 different words.
Results demonstrated that improvements in accuracy and speed of trained words were larger for the repeated reading group than
for the children who had only practiced with these words once. No difference in generalisation of effects to untrained neighbour
and control words was found between the two conditions. Furthermore, rapid naming skill was unrelated to improvements in reading
fluency and transfer effects in both training conditions. Results demonstrate that the practical value of repeated reading
lies in its word specific training effects. 相似文献
35.
The relationships among pronunciation level (decoding), verbal level (listening), and accuracy level (reading) were investigated in grades 1 to 6, and for students who are in the advanced phase of decoding. The data collected were used to investigate the validity of the simple view of reading and the causal model of reading achievement which holds that pronunciation level (PL) and verbal level (VL) are the proximal causes of accuracy level (AL). A total of 135 students in grades 1-6 were given measures of nonword decoding, real word decoding, listening, and reading. All of the reliable variation in an indicant of the level of reading ability, AL, could be predicted from an indicant of the level of ability to decode real words, PL, and an indicant of listening level, VL. Furthermore, the strong relationship between pronunciation level, PL, and accuracy level, AL, did not evaporate for the students who had mastered basic decoding skills, as measured by nonword decoding tests. The correlations between pronunciation level, PL, and accuracy level, AL, were high even for students in grades 5 and 6, most of whom probably had progressed beyond the alphabetic phase (phonological recoding). Correlational support was found for the simple view of reading and the causal model which holds that AL is equal to the square root of the product of VL and PL. The above theory and supporting data were interpreted as suggesting that the level of reading accuracy, AL, of students can be improved the most throughout grades 1 to 6 by emphasizing instruction that will improve pronunciation level, or decoding, even for children who have progressed beyond the beginning to read phase which involves learning the alphabetic principal, or phonological recoding. 相似文献
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This study longitudinally investigated the relationships between verbaland visual short-term memory (STM) and the acquisition of decoding from thepre-reading through the early acquisition stages in 63 Hebrew-speakingchildren Test waves occurred in kindergarten, first grade and second grade.IQ, visual and verbal STM and decoding ability were assessed. The dataindicated that while both verbal and visual STM in kindergarten were significantlycorrelated to later decoding skill, pre-reading visual STM was a stronger predictor.The results further showed that pre-reading performance on the WISC-R BlockDesign test predicted later decoding ability, while performance on theWISC-R Vocabulary test did not. Lastly decoding skill in grade 1 was foundto predict only visual in grade 2. These results indicate that visualparameters may make a crucial contribution to the acquisition of decodingskills. The size of pre-reading visual STM capacity appears to play a rolein this process. The relationship between visual STM and decoding may bebidirectional, as learning to decode appears to develop visual STM. It issuggested that either language-related or task-related factors may accountfor these counter-to-mainstream results. 相似文献
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Marcia K. Henry 《Reading and writing》1993,5(2):105-112
This paper introduces the special issue on decoding by discussing the role of decoding in the framework of reading research and current instructional issues. It briefly describes the contributions of the seven authors by presenting their key conceptions related to typical and atypical learners. The paper emphasizes the importance of decoding as part of the reading and language arts curriculum and provides instructional implications. Decoding is especially important to consider at this time, since instruction in reading, throughout the United States, is all but excluding systematic decoding instruction as it moves to the whole language, literature-based approaches. While many children may learn to read without difficulty using literature-based approaches, many children may fail to pick up the code. 相似文献
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