Effect of Negative Emotional Content on Working Memory and Long-Term Memory.

In long-term memory, negative information is better remembered than neutral information. Differences in processes important to working memory may contribute to this emotional memory enhancement. To examine the effect that the emotional content of stimuli has on working memory performance, the authors asked participants to perform working memory tasks with negative and neutral stimuli. Task accuracy was unaffected by the emotional content of the stimuli. Reaction times also did not differ for negative relative to neutral words, but on an n-back task using faces, participants were slower to respond to fearful faces than to neutral faces. These results suggest that although emotional content does not have a robust effect on working memory, in some instances emotional salience can impede working memory performance. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

多孔粒状铵油炸药在乌海矿业公司的应用

通过对多孔粒状铵油炸药质量影响因素的分析，结合乌海矿业公司爆破的特点，提出了保证炸药加工质量的合理参数。     

硫含量对钴钼型耐硫脱氧剂的脱氧活性影响

研究了工艺气中硫含量对钴钼型耐硫脱氧剂脱氧活性的影响。通过常压微反 -色谱装置测定脱氧剂的本征脱氧活性 ,加压原粒度反应器测定脱氧剂的表观脱氧活性 ,结合实际经验确定了耐硫脱氧剂所需的最低硫含量。还讨论了温度、压力、空速对耐硫脱氧剂脱氧活性的影响。结果表明 ,耐硫脱氧剂完全能满足耐硫变换工艺的要求 ,而且有耐硫变换的作用 ,并对耐硫变换催化剂起到保护作用     

整体毡纤维体积分数对CVD增密的影响

将3组不同纤维体积分数的整体毡采用等温CVD进行沉积热解炭增密,结合CVD沉积过程中整体毡内气体传质数学模型,研究了整体毡的纤维体积分数对CVD增密过程的影响,研究结果表明:纤维体积低的整体毡沉积时增重率高;纤维体积分数高的整体毡容易获得较高密度的C/C复合材料;纤维体积分数超过35％的整体毡经过300 h的化学气相沉积,坯体的体积密度能达到1.52 g/cm~3。     

斜井前置液加砂技术现场应用

中原油田斜井(井斜20°)水力压裂过程中易产生多裂缝和存在严重弯曲摩阻,常出现早期脱砂现象。油、气井压裂后初期产量高,但递减快,稳产时间短(100d),累积产量少。针对这些问题研究了前置液加砂技术,现场应用结果表明,前置液中加入粉砂能有效控制压裂液滤失,降低储层伤害,实现裂缝深穿透,而且粉砂能支撑微裂缝,提高压裂效果;前置液加中砂能有效降低裂缝弯曲摩阻,提高施工成功率。应用该技术,中原油田斜井压裂成功率由初期的50%提高到95%以上,有效率88%,有效期延长了50d以上,应用效果显著。     

孤东油田稠油开采配套技术及应用

孤东稠油油藏具有油层埋藏浅，泥质粘土含理高，油层岩石胶结疏松等特点，粘度分布范围宽，开采过程中出砂严重，断块分布零散，开采难度大，结合稠油油藏特点和开采中存在的难点，综合配套油层保护，防砂，降粘和机采等工艺，提高稠开发效果。     

FAST MEASUREMENT OF ASH CONTENT IN COAL WASHING PLANT

The coal filter cake is a product of fine coal after floatation which has an ash content of 7-13%, water content of 30±2%, and a particle size of less than 1 mm. The ash content was measured by the intensity of the single backscattered gamma-ray, and its accuracy is mainly dependent on the energy of the gamma-ray. The 238Pu low energy photon source is selected in this work. The energy of its gamma-ray is 15 keV, which can result not only in the best sensitivity, but also in the lowest contribution to the environment radiation. The root mean square deviation of the ash measurement is±0.33% (±1σ).     

厚沙波沙脊区海底管道用爆破法开沟初探

某区在海上铺设管道,须通过厚沙波沙脊区,采用机械方法施工很困难,应用沉入混凝土管的爆破方法具有投资省,速度快,施工简单的特点。     

合成镁白云石砂的研制与应用

选用优质轻烧白云石、轻烧菱镁石为原料,经干法消化、高温煅烧,制得杂质含量2.66％、体密>3.28g/cm~3的合成镁白云石砂。用合成镁白云石砂制得CaO MgO>97％,总杂质含量2.11％的高纯合成镁白云石砖,在太原钢铁公司AOD炉第一次试用,最高炉令达36炉次。     

原子吸收分光光度法测定焦锑酸钾中锑含量

比较详细地研究用火焰原子吸收分光光度法测定焦锑酸钾中锑含量的技术条件和测定方法。