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61.
《Ergonomics》2012,55(10):1289-1300
AbstractThree computer-based experiments were conducted to examine whether disfluent format, enhanced text, and increased exposure time improve the accuracy of visual differentiation and recognition memory of look-alike drug names. A three-way, repeated-measures look-alike drug name differentiation test assessed the visual differentiation accuracy of 30 nursing students (Experiment 1) and 15 nurses (Experiment 2). A two-way, repeated-measures recognition memory test examined the recognition memory accuracy of 15 nurses for look-alike drug names (Experiment 3). We found that making drug names disfluent did not significantly improve differentiation (Experiment 2) or memory accuracy (Experiment 3), but even impaired differentiation accuracy (Experiment 1). Enhanced text and longer exposure time significantly improved differentiation accuracy (Experiments 1 and 2). However, the enhanced text did not improve recognition memory (Experiment 3). We suggest that making look-alike drug names disfluent is not favourable. Enhanced text and longer exposure times are effective in supporting visual differentiation of look-alike drug names.Practitioner Summary: Confusion arising from look-alike drug names may compromise patient safety. Three experiments examined the effects of disfluent format, text enhancement and increased exposure time on visual and memory performances. Making drug names more difficult to read did not improve performance. Enhancing text design and increasing exposure (i.e. reading) time improved visual differentiation between medications, but did not improve the recognition of medications from memory.Abbreviations: SEEV: Salience-effort-expectancy-value; FDA: Food and Drug Administration; ANOVA: analysis of variance; SD: standard deviation, DF: disfluent format; TE: text enhancement; ET: exposure time. 相似文献
62.
Given that banner ad investment is huge and keeps increasing, the effectiveness of banners is important for advertising practitioners and is worth attention from academics. Banner properties (e.g. format and animation) may influence the overall effectiveness of banners. However, research on how banner formats (e.g. location and orientation) affect banner effectiveness is still in its early stage and studies on how animation influences banner effectiveness have also found controversial results. By conducting an experiment using eye-tracking technology, this study investigated the impacts of banner properties, especially animation speed and format, on users' attention, recall, and attitudes towards banners. In terms of attention, both the main effects and the interaction effect were significant and the patterns varied across time. However, no significant effects were found on recall and attitudes. 相似文献
63.
We consider approximate computation of several minimal eigenpairs of large Hermitian matrices which come from high-dimensional problems. We use the tensor train (TT) format for vectors and matrices to overcome the curse of dimensionality and make storage and computational cost feasible. We approximate several low-lying eigenvectors simultaneously in the block version of the TT format. The computation is done by the alternating minimization of the block Rayleigh quotient sequentially for all TT cores. The proposed method combines the advances of the density matrix renormalization group (DMRG) and the variational numerical renormalization group (vNRG) methods. We compare the performance of the proposed method with several versions of the DMRG codes, and show that it may be preferable for systems with large dimension and/or mode size, or when a large number of eigenstates is sought. 相似文献
64.
熊金 《自动化技术与应用》2014,(1):36-39
详细介绍了应用在线编程技术的系统配置,应用程序代码的格式转化的方法步骤.给出应用程序代码的读取存储和在线编程的流程以及程序代码的搬运、烧写、校验的源程序.该技术成功应用于实际工程中,给系统升级维护提供了诸多便利. 相似文献
65.
《Ergonomics》2012,55(4):369-374
Abstract Three types of control levers— the spring-centrod-displaccment control, the on-off control and the pressure control— were compared on a third-order compensatory tracking task. Based on an analysis of the control transfer functions, the predicted ranking of the three controls is: (1) pressure, (2) displacement and (3) on-off. The results of a study in which five subjects tracked six trials with each control for 18 sessions were as follows. The data at the beginning of training indicated rankings of (1) pressure, (2) on-off and (3) displacement. However, the data taken during the latter sessions ranked the controls as predicted, although the difference between displacement and on-off was not statistically significant. Differences in results between, early and late training, and comparisons of these results with other studies, are discussed. 相似文献
66.
本文仅以DGPS所采用的RTCM SC-104数据格式为例,对它的数据格式类型、电文内容和电文解码实现进行了论述,作为读者全面了解DGNSS数据流的向导。 相似文献
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李玉兰 《湖南工业职业技术学院学报》2007,7(1):21-23
通过时空数据模型的研究历史以及对各种时空数据模型的特点和不足的分析,来说明当前时空数据模型的研究现状和进展情况,提出了在地理信息系统中建立时空数据模型管理时空数据时,必须建立实用的基于栅格数据的时空数据模型。 相似文献
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