软件补偿方法在测温智能仪表中的应用

软件补偿方法具有效果好、精确度高、成本低的优点。介绍了在研制多点巡回检测仪中采用的几种软件补偿方法：前向通道特性补偿使放大器等元件不因外界条件的变化而受到任何影响；引线电阻的补偿可实现引线电阻对系统无任何影响；热电阻、热电偶的非线性度补偿效果明显，节省开销。     

多目标多阶段决策问题最优化方法及应用

本文提出了可行状态点,可行边和可行策略等概念,建立了一种新的解决多目标多阶段决策问题的方法,介绍了这一方法的应用实例:     

新的基团法估算沸点下蒸发焓

提出了估算沸点下蒸发焓的含基团重量分率的基团法和估算式，拟合团贡献值，对３８５种有机物的计算平均偏差约为１．５％。所提出的新方法明显优于３种对应状态和用蒸发熵的基团法。     

内河浅隧道双尾工作艇的设计

双尾型船是一种优良节能船型，详细介绍我国北方首例内河浅隧道双尾船的设计，指出该船型在浅水中的优越性及设计中应该重视的尾部振动问题及解决这一问题的方法。     

金属在福州地热水中的腐蚀热力学研究──(I)、铜—地热水系统

作者从热力学角度以电位－ｐＨ图探讨金属在福州地热水中的腐蚀趋势．本文报导铜－地热水系统，采用ＢＡＳＩＣ语言编制程序在ＡＰＰＬＥ－Ⅱ微机上计算高温热力学数据，并以ＤＸＹ－８００绘图仪绘制电位－ｐＨ图．同时，测定了铜在福州Ｇｗ２井地热水中的实际腐蚀电位．结果表明：在此地热水中，当温度低于３１８Ｋ，铜表面生成Ｃｕ２Ｏ膜，高于３１８Ｋ，生成ＣｕＯ膜，二者都位于钝化区．     

预测我国钢铁工业发展趋势的递归模型

本文根据我国钢铁工业生产特点,建立了60多个变量、28个方程的递归模型,描述了钢铁工业生产的结构形式,确定了主要生产环节的生产函数,给出了各种经济变量间的相互关系,预测了我国矿、铁、钢、钢材、产值等28个主要的内生变量的未来值,分析了“七五”、“八五”、“九五”三个五年计划可达指标、发展速度及保证条件。经过1984年的实际检验,证明模型的预测效果良好。     

Functional magnetic resonance imaging of amphetamine craving

The aim of this study is to identify the brain activity associated with amphetamine craving for understanding the neurobiology of addiction by watching pictures of happy, sad or amphetamine. Brain activity was measured in 12 amphetamine addicts and 12 healthy subjects by fMRI while the subjects watched pictures designed to elicit happy feelings, sad feelings, or the desire to use amphetamine. The result demonstrated that amphetamine cues led to abnormally high cingulate and low frontal lobe activation in amphetamine addicts, who showed abnormalities in affect-related brain activation.     

An ERP study for the degrees of the difficulty in visual search

The present study mainly probed the relationships between ERP components and the degrees of difficulty in visual search. Three experimental and one controlled conditions were randomly selected. Results showed that the P1, N1, and P2 amplitudes and latencies had no significant differences among the three experimental and one controlled conditions, and the ERP waveforms of low perceptual load of visual search were different from that of high perceptual load. These results might indicate that the latencies and amplitudes of initial P1, N1 and P2 in high and low perceptual load conditions were almost the same. The ERP waveforms of parallel search were very different from that of serial search, and the ERP waveforms of serial search were very similar. The P3 amplitudes increased as the degrees of the difficulty in visual search decreased.     

国家自然科学基金面上项目资助额的地区分布规律

本文讨论了国家自然科学基金面上项目资助额的地区分布特点,发现基金面上项目资助额的地区分布与博士生人数的地区分布有很大的相关性,从而可以看出国家自然科学基金的资助在很大程度上取决于申请者所在地区具有的科研和教育水平。