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71.
提出了一种在Windows操作系统下的图像实时显示新型方法,该方法充分应用DirectX的更好的兼容性和更有效的图形加速特性,使用多缓存区进行图像数据存储、实时插值和边缘平滑处理、绘画和页面翻转的技术.以上技术使得气象回波的PPI和RHI显示更逼真地复现了天气的实时变化情况,并且显著地改进了系统的实时处理性能.实验结果证明了使用该技术的有效性和可行性. 相似文献
72.
Parthenia Dinora Kathleen Lynch 《Journal of social work in disability & rehabilitation》2017,16(3-4):377-395
ABSTRACTThe number of interventions available for children with autism spectrum disorder (ASD) has expanded greatly in recent years, although relatively little is known about the factors that influence family caregivers as they make treatment decisions for their children. This study involved a statewide survey of parents of young children with ASD to examine the relative weights of the factors that influenced their treatment decisions. Results suggested that caregivers rely on their own intuition for much decision making, although selected professionals are also influential. Implications for professionals working with children with ASD and their families are discussed. 相似文献
73.
《Journal of social work practice in the addictions》2013,13(1):3-9
Abstract This article describes the history of social workers' involvement in the treatment of addictions in the United States. Beginning with Mary Richmond, the “mother of social casework,” social workers have played an increasingly important role in the treatment of individuals with alcohol and other drug problems and of their family members. Today, social workers are important players not only in program development, administration, and treatment of chemical addictions, but also in “process” addictions, such as eating disorders and gambling. Moreover, social workers are increasingly involved in addictions research and policy arenas. 相似文献
74.
彭春元 《广州大学学报(社会科学版)》2001,(8)
通过对水泥混凝土路面损坏原因的分析,阐述路面修补材料的性能要求,说明路面修补材料在国内外 的研究现状及存在的问题,提出新型水泥混凝土路面修补材料的发展方向. 相似文献
75.
王玉飞 《榆林高等专科学校学报》2011,(4):82-86
利用NaOH浸提高温煅烧的高岭土,考察了碱的浓度、碱与高岭土的比例、反应温度和反应时间等因素对高岭土改性后吸油性能的影响,采用DTA-TG、XRD、BET、SEM、TEM等方法对碱改性高岭土的性能进行测试。实验结果表明,3 mol/L NaOH以碱土比6 mL/g在90℃下处理高岭土2h后,所得改性高岭土的吸油值大幅度提高,这归因于碱改性高岭土后平均孔径得到提高,孔分布更为集中,孔洞数量和比表面积大大增加。 相似文献
76.
《Journal of Technology in Human Services》2013,31(4):15-27
ABSTRACT Simulations in Developmental Disabilities (SIDD) is a multimedia computer program designed to provide undergraduate psychology students with practice in making assessment and treatment decisions. Eighteen undergraduate psychology students participated in an experiment to test the instructional effectiveness of SIDD. Post-test scores were significantly higher in the experimental group who received training with SIDD than in a control group who did not receive training. The students also rated the software positively. Future strategies to further evaluate the software are discussed. 相似文献
77.
Response surface methodology is widely used for developing, improving, and optimizing processes in various fields. In this article, we present a method for constructing three-level designs in order to explore and optimize response surfaces combining orthogonal arrays and covering arrays in a particular manner. The produced designs achieve the properties of rotatability, predictive performance and efficiency for the estimation of a second-order model. 相似文献
78.
Manoochehr Babanezhad Stijn Vansteelandt Els Goetghebeur 《Journal of statistical planning and inference》2010
Over the past decades, various principles for causal effect estimation have been proposed, all differing in terms of how they adjust for measured confounders: either via traditional regression adjustment, by adjusting for the expected exposure given those confounders (e.g., the propensity score), or by inversely weighting each subject's data by the likelihood of the observed exposure, given those confounders. When the exposure is measured with error, this raises the question whether these different estimation strategies might be differently affected and whether one of them is to be preferred for that reason. In this article, we investigate this by comparing inverse probability of treatment weighted (IPTW) estimators and doubly robust estimators for the exposure effect in linear marginal structural mean models (MSM) with G-estimators, propensity score (PS) adjusted estimators and ordinary least squares (OLS) estimators for the exposure effect in linear regression models. We find analytically that these estimators are equally affected when exposure misclassification is independent of the confounders, but not otherwise. Simulation studies reveal similar results for time-varying exposures and when the model of interest includes a logistic link. 相似文献
79.
《统计学通讯:理论与方法》2013,42(8):1373-1383
ABSTRACT We consider the variance estimation in a general nonparametric regression model with multiple covariates. We extend difference methods to the multivariate setting by introducing an algorithm that orders the design points in higher dimensions. We also consider an adaptive difference estimator which requires much less strict assumptions on the covariate design and can significantly reduce mean squared error for small sample sizes. 相似文献
80.
《Journal of social work practice in the addictions》2013,13(2):51-64
ABSTRACT This study examines the narratives shared by low-income women in addiction recovery centers about the meaning they attach to being a parent in recovery and how they view current program models that include children in daily treatment. Their stories reflect the centrality of the mothering role to women in recovery and offer insights that can guide treatment and program planning with families. 相似文献