脉冲功率器件直流和动态热特性探测

介绍了针对影响微波脉冲功率器件可靠性的热性能问题，应用红外热分析技术。对比探测微波脉冲功率器件在动态和直流状态下的温度分布，峰值结温，热阻及其变化规律。     

文昌A凹陷油气成藏特征与分布规律探讨

文昌A凹陷位于珠江口盆地西部,是一个发育文昌组和恩平组两套湖相烃源岩复合成藏的油气区。根据特征生物标志化合物与碳同位素组成的油岩对比结果,可将文昌A凹陷发现的原油划分为两类,即文昌Ⅱ型和恩平型,前者来自文昌组浅湖相烃源岩,后者源于恩平组湖相烃源岩;天然气主要源于恩平组烃源岩,也可能有文昌组烃源岩凝析气或裂解气的贡献。文昌A凹陷油气两期成藏,早期成油,晚期聚气及轻质油,其油气分布主要受烃源岩有机相、热演化程度和运移分馏作用等因素的控制,凹陷中部以气为主,凹陷边缘气油共存,而凸起上以油为主。     

中国石化低渗透油藏开发状况及前景

选择渗透率、油藏原始压力和油藏埋藏深度3个指标，结合中国石化已开发的286个低渗透油藏开发单元特点，将低渗透油藏细分并组合为深层高压特低渗透油藏、中深层常压特低渗透油藏、浅层低压特低渗透油藏、深层高压低渗透油藏、中深层常压低渗透油藏和浅层常压低渗透油藏6种主要类型，不同类型油藏开采特征差异较大。提出了加强储层和渗流机理研究、合理加密井网、实施精细注水、应用整体压裂改造和井筒提升技术、实施二氧化碳驱和天然气驱先导试验等改善低渗透油藏开发状况的思路，指出下一步应利用水平井和分支水平井开采各种类型低渗透油藏，提高油藏开发经济效益，开拓中国石化乃至中国低渗透油藏开发前景。     

有可能用于鱼雷尾流自导的某些光学特征

介绍了尾流自导鱼雷特点,研究了真实尾流的光学特性,提出了用于鱼雷尾流自导可能的光学特征。     

学习新版建筑工程施工质量验收规范的体会

结合新版建筑工程施工质量验收规范的学习和施工实践 ,介绍了新版标准与旧标准的差异和特点 ,并就如何贯彻实施新标准、准确掌握检验批等问题作了分析 ,提出了执行中的相关注意事项。     

Predicting posttraumatic growth in breast cancer survivors.

Wide variability exists with respect to how breast cancer survivors respond to common psychological and psychosocial challenges of their disease, ranging from posttraumatic stress disorder to posttraumatic growth. This cross-sectional study examined contextual, disease-related, and intraindividual predictors of posttraumatic growth in 224 randomly selected breast cancer survivors. A series of hierarchical regression analyses found that age at diagnosis, marital status, employment, education, perceived intensity of disease, and active coping accounted for 34%, 35%, and 28% of the variance in growth in relationships with others, new possibilities, and appreciation for life. These findings suggest that a more comprehensive model of growth will be helpful in understanding the various factors that play a role in breast cancer survivors' perception of psychological and psychosocial growth. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Substance use as a robust correlate of school outcome measures for ethnically diverse adolescents of Asian/Pacific Islander ancestry.

School psychologists are generally not provided with the knowledge and skills to address both educational and psychosocial issues of Asian American and Pacific Islander students. The present study is the first of its kind in examining 36 independent (i.e., demographic, social, cultural, psychological) variables in association with four school outcomes (i.e., grade point average, absences, suspensions, and school infractions) with a large sample of Caucasian, Filipino, Native Hawaiian, Japanese, mixed/non-Hawaiian, and "other" Hawai'i high school students (N = 2,833). Given the relatively unique sample in question and the sheer number of variables, an exploratory approach was utilized with the goal of determining the most robust independent variables, with the unique inclusion of Hawaiian cultural identification. A cross-validation technique was used, whereby stepwise regressions were performed for each of two cross-validation samples; only common variables were retained in a final stepwise model for each of the four school outcomes. The results indicated that, remarkably, substance use accounted for the most variance (i.e., 8.4% -16.1 %) in the four school measures. Further analyses detailed the relationship, including the finding that smoking cigarettes regularly, accounted for the most variance compared to the other five substance use items. Further research and implications of the findings are discussed, including the need for prevention and intervention programs that incorporate substance use as a component, both within and outside of school environments. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

方波扫描路径确定声源声功率误差特性分析

改进了矩形测量面方波扫描路径测量声功率的误差模型 ,以单极子、偶极子及四极子声源为例 ,给出了扫描方向、测量面离声源的距离及扫描线的密度的选取对理论误差的分布图形。分析结果表明 :对选定的测量面 ,在扫描线密度小的情况下 ,通过调整声源离测量面的距离 ,可以在声源近处找到一个最优点或较优点 ,使理论误差为零或很小 ;在绝大多数情况下 ,沿测量面长边扫描误差比沿短边扫描小。     

凝土温度特性参数反分析及其应用

建立混凝土温度场材料特性参数反演分析模型,并用有限单元法仿真计算和可变容差法编制了优化反演程序。数值算例表明该算法是稳定的,收敛速度较快,并给出具体的在建工程实例的应用情况。通过现场温度观测值,进行优化反演计算得到混凝土温度的有关特性参数,这将成为部分或全部替代仅靠实验室选取参数的行之有效的途径之一。     

新型非蒸散消气剂的激活温度和吸气性能的实验研究

对主要成分为Zr和Co的新型非蒸散消气剂进行了活化温度及吸气性能的实验研究。实验表明其活化温度为200—250℃，对N2，H2等活性气体有很好的抽速，对惰性气体He等无抽速。