蓝色经济背景下山东半岛体育赛事市场开发研究

以建设山东半岛蓝色经济区为背景,阐述开发体育赛事所带来的巨大经济效益和社会影响,并对如何借助蓝色经济区的优势开发山东半岛体育赛事市场提出见解。     

在计算机应用专业教学中培养学生的自学能力

为了适应时代的需要,很多高职学校都相继开设五年制计算机应用专业,为社会培养计算机应用人才。笔者从事多年的计算机应用专业的教学工作,这么多年的实践经验证明,在计算机应用专业教学中培养学生的自学能力是有效的、可行的,也是刻不容缓的。     

儿童和青少年社交恐怖症的诱因及对策

社交恐怖症不仅会降低儿童和青少年的生活质量,而且会影响其在校的学习和今后的职业发展。生物性因素、社会性因素以及个人因素是儿童和青少年社交恐怖症的主要诱因。预防儿童和青少年社交恐怖症应当重视家庭的教育和引导,建立起学校、家庭和青少年儿童同伴三者间的反馈机制,引导儿童和青少年正确认识和评价自己的交往能力。     

自学考试与职业技能培训的双证交互式教学研究探讨

实行高等教育自学考试与职业技能培训的双证交互式教学,是高等教育自学考试在新历史时期的发展战略。在分析了交互式教学的现实需求的基础上,总结了国内外交互式教学研究的经验,提出了交互式教学的发展方向。     

LCD控制器设计及uClinux移植

设计了一个用于液晶显示的LCD控制器,该控制器基于A1tera公司的SOPC系统,通过SOPC中的Avalon总线接口与NiosⅡ处理器和SDRAM控制器通信,完成对LCD的显示控制。并在该Nios Ⅱ系统上成功移植了uClinux。     

Relation of uric acid levels to aortic root dilatation in hypertensive patients with and without metabolic syndrome

Objective:Uric acid(UA) is considered to be a powerful predictor of cardiovascular risk and hyperuricemia might be involved in the metabolic syndrome(MS).This study aims to investigate the relation between UA levels and aortic root dilatation.Methods:A total of 348 hypertensive patients [age(67.5±9.8) years] with or without MS were included in the study.The aortic root diameters at the aortic annulus,the sinuses of Valsalva,the sinotubular junction,and the proximal part of the ascending aorta were measured using a two-dimensional(2D) echocardiography.Serum UA levels were also measured for all patients.Results:A high UA level is independently associated with aortic root diameters at the sinuses of Valsalva(P=0.001) and the proximal ascending aorta(P0.0001) in the hypertensive patients without MS.In contrast,aortic root diameters were not significantly related to UA levels in the hypertensive patients with MS.Furthermore,increased UA levels were associated with an increased risk for aortic root dilatation in the patients without MS(sex-adjusted hazard ratio 1.75,95% confidence intervals(CI) 1.27-2.41),but not in those with MS.Conclusions:This study demonstrated an independent relationship between the aortic root dimensions and increased levels of serum UA in the hypertensive patients without MS.Further understanding of the mechanisms underlying these associations may allow a clearer interpretation of the potential value of specific urate-lowering treatment on cardiovascular disease.     

Neurochip based on light-addressable potentiometric sensor with wavelet transform de-noising

Neurochip based on light-addressable potentiometric sensor(LAPS),whose sensing elements are excitable cells,can monitor electrophysiological properties of cultured neuron networks with cellular signals well analyzed.Here we report a kind of neurochip with rat pheochromocytoma(PC12) cells hybrid with LAPS and a method of de-noising signals based on wavelet transform.Cells were cultured on LAPS for several days to form networks,and we then used LAPS system to detect the extracellular potentials with signals d...     

西北实业公司与"残留"日俘

随着抗战的结束,日军＂残留＂作为一种特殊且奇怪的历史现象出现在了山西省,说其特殊是因为这种现象仅仅出现在山西,言其奇怪是因为作为战败国的日本军队不仅没有放下武器向战胜国投降,而是继续保留其武装＂残留＂下来,企图完成其＂复兴＂的大业。然而,近年来关于山西＂残留＂日军的论著虽然不少,但对其中虽已划入日军＂残留＂总数之列但却并非武装人员的一部分——＂残留＂技术人员却大多忽略或鲜有论述,而这些技术人员几乎全部服务于阎锡山的大型官僚企业——西北实业公司。文章通过对西北实业公司＂残留＂日籍技术人员的论述来更加全面地考察＂残留＂在山西的日俘情况,从而还原历史的本来面目。     

全国中小学书法教育调查报告

本文以全国24省市、自治区的专家、学者、老师及社会各界专业人士、中小学校长和高校研究生、本科生的问卷调查为佐证。揭示了我国中小学书法教育存在的问题,分析了问题的原因,阐明了相应的观点。     

Carbon steel slag as cementitious material for self-consolidating concrete

This study deals with the recycling of carbon steel slag （CSS） to produce self-consolidating concrete （SCC）. Since the chemical composition of CSS is similar to that of Portland cement or blast furnace slag （BFS）, it is expected to behave similarly. In the current study, the pozzolanic activity index of CSS is examined. Furthermore, the use of CSS as a pozzolanic material to partially replace Portland cement in the production of SCC is tested. We designed concrete mixtures with different water-to- cementitious material ratios （w/cm） keeping water and superplasticizer （SP） contents constant. Results showed that the design and performance of all the concrete mixtures used in this investigation were comparable to those of SCC and high performance con- crete （HPC）. However, compared to ordinary plain concrete （OPC）, the additional CSS content increases the setting time. In the CSS mixtures set for 90 d, compressive strengths of 86%, 134% and 121% were attained as compared to the control concrete; the corresponding w/cm ratios were 0.28, 0.32 and 0.40, respectively. Verifying the soundness of the SCC for meeting the criteria for HPC, the ultrasonic pulse velocity （UPV） of CSS was found to be comparable to that of ordinary concrete. In conclusion, the recycling of CSS can be advantageously employed in the production of SCC.