调幅系数为任意值的调幅波研究

本文讨论了调幅系数为任意值的调幅波，给出了它的表达式，频谱与调幅系数，调制效率和信噪比增益的计算公式。     

论市场营销组合要素与商品包装策略

企业为了实现营销战略目标，必须把各种可控制的营销组合要素，通过商品包装这一特殊的视觉诉求语言充分体现出来，以便综合性地发挥作用，取得良好的市场促销效果。     

调谐质量阻尼器参数设计中的两个问题

本文以单自由度系统安装一个调谐质量阻尼器（简称TMD）为例，对抗风和抗震两类不同激励工况下TMD的参数设计问题进行了理论研究与对比分析。通过给出相对误差系数的概念，定量评价了不同的参数方法对TMD减振性能的影响程度。本文的研究为TMD的参数设计提供了理论指导。     

非均质储层模型微观水驱油实验

储层的非均质性不但普遍存在，而且是影响注水开发油藏水驱效率和开发后期剩余油分布的重要因素。利用微观模型水驱油实验，研究了横向、纵向及平面共6种非均质模型在不同注采方式下微观水驱油机理。针对不同非均质模型和注采方式下剩余油分布特点，研究了改变注采方向和驱替压力对提高水驱采收率的影响。改变注采方向后，横向和平面非均质模型采收率分别提高了2．89％和5．42％；对于纵向非均质模型，首次低注高采改变为高注低采后提高采收率3．72％，反之提高了1．26％。提高驱替压力后，横向及纵向非均质模型的采收率分别提高了35．65％和31．26％，平面非均质模型只提高了8．10％。     

Factor structure of the SOCRATES in a clinical sample of adolescents.

This study investigated the Stages of Change Readiness and Treatment Eagerness Scale (SOCRATES: W. R. Miller & J. S. Tonigan, 1996) in adolescents presenting for treatment of alcohol use disorder (AUD). The participants were 80 males and 43 females (mean age=16.8 years) who presented for AUD treatment (95.1% outpatient, 4.9% inpatient). Participants completed assessments at baseline and 1 year and provided information on alcohol use and related variables monthly between these 2 assessments. Principal-components and confirmatory factor analyses of the baseline SOCRATES identified 2 factors, Taking Steps and Recognition, which showed good internal consistency and concurrent and predictive evidence of validity. The results were interpreted as supporting the use of the SOCRATES with clinical samples of adolescents. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

阳泉市煤矿采空区地质因素对公路的破坏

介绍了阳泉市煤矿采空区对公路建设所造成的危害，对其上覆岩层变形破坏的地质因素及其破坏机理作了分析，指出应该采取各种措施减少对公路的破坏。     

An ecological-transactional understanding of community violence: Theoretical perspectives.

Community violence has emerged as a major risk factor for the development of mental health problems in children and adolescents. If mental health providers are to meet the needs of children and communities dealing with community violence, then they will need to integrate principles from various subdisciplines in psychology (e.g., developmental psychology, school psychology, developmental psychopathology) as well as disciplines outside of psychology (e.g., sociology, public health, medicine) to understand fully the developmental impact of exposure to community violence. The development of such a model is necessary to identify the pathways, risk, and protective factors on which prevention and intervention programs can be built. The goal of this article is to present an ecological-transactional model of community violence as a conceptual framework for understanding the existing literature and for guiding future research on community violence exposure and child development. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Al2O3在钒钛烧结矿中的行为研究

针对攀钢钒钛烧结矿Al2O3含量高的情况，在实验室对Al2O3在钒钛烧结矿中的行为进行了试验研究，结果表明，Al2O3含量增加对钒钛烧结矿的产量，质量有不利影响，钒钛烧结矿中的Al2O3主要以固溶体形式贮存于除钙钛矿外的其他矿物相，它对烧结矿的矿物组成和结构有较大的影响。     

Effects of Freezing on Quality of Cold-smoked Salmon Based on the Measurements of Physiochemical Characteristics

ABSTRACT: How the quality of cold-smoked Atlantic salmon ( Salmo salar ) is affected by freezing the raw fish as whole fish, as gutted fish, and as fillets before smoking, and by freezing the finished product after smoking was studied. Freezing before smoking resulted in increased product yield and water content, but softer texture and increased K-value. Freezing reduced the content of astaxanthin but increased the lightness and the color intensity of the flesh. Gaping increased when the fish was frozen as fillets before smoking. Freezing only after smoking led to fewer changes in quality than freezing before smoking, whereas refreezing the finished products had little additional effect on quality.