The effect of voice lessons on the clinical and perceptual skills of graduate students in speech-language pathology

Two groups of 10 speech-language pathology graduate students were each given 7 weeks of singing lessons to determine whether voice lessons could have an effect on their clinical and perceptual skills. Pre-, mid-, and posttests to measure various skills were designed and implemented. With use of paired sample statistical testing, statistically significant results were obtained. In addition, the subjective responses of the students show that the lessons were effective in improving pitch perception, breath control, and legato production or easy onset. This study supports efforts to integrate curricula in vocal performance and speech-language pathology.     

狭缝式高速摄影机胶片的计算机判读

根据狭缝摄影机胶片的成象原理,运用数字图象处理技术,对狭缝式高速摄影机胶片判读工作的计算机化进行研究.应用结果表明,该技术先进实用,极大地提高了判读的精度和效率,将是这种胶片判读技术的发展方向.     

DV4／5光电直读光谱仪常风故障分析及处理

本文对美国贝尔德公司ＤＶ４／５光电直读光谱仪出现的常见故障进行了分析，并详细阐述了它的检修过程。     

不锈钢薄板和薄带的直读光谱分析

利用直读光谱仪，优化各种分析参数，快速分析不锈钢薄板或薄带的化学成分，其精密度和准确度较好。     

Disciplinary literacy in mathematics: One mathematician’s reading practices

Recent scholarship on disciplinary literacy calls for an emphasis on teaching discipline-specific language/literacy practices. An understanding of these practices is, therefore, essential to literacy instruction in secondary content areas such as mathematics. This case study examined one mathematician’s reading practices, with a focus on the strategies he used in text comprehension. Data collected include the mathematician’s think-alouds during reading, discussion of his reading think-alouds, and semi-structured interviews. These data were analyzed qualitatively through an iterative process involving multiple readings and identification and refinement of codes. The analysis revealed that the mathematician engaged in extensive reading and employed an array of strategies—rereading, close reading, monitoring and questioning, summarizing and paraphrasing, storying, drawing on prior knowledge and experience, evaluating and verifying, and note-taking and visualizing—to help him make sense of what he read. These findings provide important insights that can inform mathematics teachers’ efforts to support students’ mathematics reading/learning.     

Speech breathing during reading in women withvocal nodules

This study examined speech breathing patterns during reading bywomen with bilateral vocal fold nodules judged as mildly dysphonic and by women without vocal nodules. Although it might be predictable that the speech breathing patterns of individuals with laryngeal dysfunction will differ from those without laryngeal dysfunction, there is a lack of empirical data to support such assumptions.The results of the current study indicated that glottal airflow was greaterduring reading for the women with vocal nodules and that a larger volume of air was expended both per syllable and per breath group during reading. The rate of speech did not significantly differ between the two groups of women. There was no significant difference for the average duration of the breath groups and no significant difference for the number of syllables spoken per breath group. Additionally, both groups of women demonstrated a similar pattern of inspiratory pause location during the reading. The results suggest that speech breathing patterns associated with dysphonia be examined independently to distinguish specifically the nature of the interaction between the laryngeal dysfunction and the speech breathing pattern. Certainly, more information on how the severity of a voice disorder influences speech breathing is necessary.     

光电直读光谱分析中的空白校正法及应用

运用空白校正校正在光电直读光谱分析中因试样类型，组织结构，成分含量，仪器波动和基体效应等因素造成的系统误差，本文对空白校正的方法原理，操作要点，实现过程及应用也作了介绍。     

直读光谱法快速测定无锡薄钢板铬层镀铬量

本文提出了直读光谱仪测定无锡薄钢板铬层铬量的新方法。通过选用基体元素的内标元素，引入Ｉｄ／Ｉ０×１００％来判断原板痕量铬对实验结果的影响程度，选择合适条件，解决了薄板易击穿，确保不同铬量无锡薄板的内标元素光强直稳定性等技术关键，采用比色法制作一套不同镀铬量的标准无镀锡薄板，绘制校准曲线，方法精度ＲＳＤ小于３．０％，准确度为１５０±５ｍｇ／ｍ＾２与经典方法比较该法操作简单，分析速度快。     

直读光谱法应用于金属合金分析与电镀层厚度测定之间的区别

本文从光谱分析原理比较入手，分析了利用火花原子发射光谱仪（直读光谱仪）进行金属合金分析和金属电镀层厚度测定之间的一系列区别，为火花原子发射光谱分析指出了一个崭新的应用领域。     

镀锡薄板单位面积镀锡量新的测定方法—贝尔德直读光谱仪分析技术的开发

本文利用贝尔德公司生产的ＳＶ－１０００型（ＤＶ－４）直读光谱仪测定镀锡薄板单位面积镀锡量，开拓了光电光谱仪在镀层领域的应用，通过选用基体铁元素作内标，在适宜的激发条件下获得锡元素涨强比与镀锡量间的线性关系。选择合适条件，解决了薄板易击穿，内标元素光强值稳定性等技术关键，采用容量法制作一套不同镀锡量的标准镀锡薄板，绘制校准曲线，建立了光电光谱分析测定镀锡薄板单位面积镀锡量的方法。方法精度ＲＳＤ小于５