供给侧结构性改革背景下我国劳动力市场改革研究

供给侧结构性改革背景下我国劳动力市场改革面临的困境(一)现行《劳动合同法》因保护企业不够而降低国内产业竞争力1.对企业权益保护缺位,增加企业劳动力成本。第一,从国际比较看,企业权益保护不足。根据OECD对全球72个国家的测算,我国对非临时职工的保护排名第二,仅次于委内瑞拉。第二,从立法层面看,企业权益保护不足。《劳动合同法》第37条将提前通知作为劳动者主动解除合同的充分条件,使关于劳动者责任的内容丧失约束

Photocatalytic degradation ability to direct fast scarlet 4BS of bamboo charcoal supported TiO_2 composite

研究了TI O2/竹炭复合材料在紫外光作用下对直接耐酸大红4bS的催化降解情况。结果表明,TI O2含量为48.34%的复合材料对直接耐酸大红4bS的光催化降解效果最好。在紫外灯光照射下,复合材料投加量为120~160 g/l时,对100 Mg/l的直接耐酸大红4bS溶液可达到良好的降解效果;P H越小,降解率越好,在P H值为0.38时,对100 Mg/l的直接耐酸大红4bS溶液的降解率达99.14%;随直接耐酸大红4bS浓度的升高,降解率先升高后降低;随时间的延长,降解率升高。复合材料对直接耐酸大红4bS的光催化降解符合反应一级动力学方程。Photocatalytic degradation properties of Ti O2/bamboo charcoal composites to direct fast scarlet 4BS under ultraviolet radiation were studied.The results showed that the degradation rate can reach the best when the content of Ti O2 is 48.34% in the composites.Under the ultraviolet radiation, the photocatalytic effect to 100 mg/L direct fast scarlet 4BS is the best with 120~160 g/L composites in it.The lower the p H value is, the better the degradation rate is.When p H value is 0.38, the degradation rate of 100mg/L direct fast scarlet 4BS reaches 99.9%.The photocatalytic degradation rate increases with the increasing of the photocatalytic time, and first increases and then reduces with the increase of the initial concentration.The photocatalytic degradation to direct fast scarlet 4BS on the composites fits in with the first-order kinetic equation.福建省青年人才项目(2007F3076); 福建省教育厅A类项目(JA12318

Influence of Yiqi Huatan Decocotion and its Component on the Level of Plasm Copper,Zinc in Rat Depression Model

目的:探讨益气化痰方(人参、清半夏、陈皮、茯苓)及其拆方对慢性轻度不可预知应激(CuMS)模型大鼠血清锌、铜含量的影响。方法:健康雄性Sd大鼠60只,随机分为5组。采用kATz刺激方法制备CuMS抑郁模型。在应激的第2天开始,按前期工作中得出了相应的效应中药及其各拆方最佳药物配比熬制中药浓缩剂,调节锌、铜方(3.25 g.kg-1组)和益气化痰方(7.0 g.kg-1)组按提取液10 Ml.kg-1灌胃,阳性药物组按10 Mg.kg-1Ig马普替林混悬液给药,模型组和正常对照组按10 Ml.kg-1给予等量的生理盐水,持续给药至第23天。实验过程中,定期测定水平得分、竖直得分、修饰次数、大便颗粒数及糖水消耗量。于第23天处死大鼠,采集血样。采用原子吸收法测定各组大鼠血清锌、铜水平的含量。结果:采用孤养和CuMS刺激方法成功制备动物抑郁模型。模型组血清铜含量较正常组明显升高、血清锌含量较正常组明显降低;而益气化痰方组与模型组比较均能够逆转上述改变;其中调节锌铜方组可以显著提高血清锌的水平及降低血清铜水平。结论:益气化痰方具有良好的抗抑郁作用,同时能逆转大鼠行为学、体内微量元素锌和铜的改变;其中起主要作用的可能为调节锌铜方药。Objective: To explore the effects of Yiqi Huatan Fang(YQHTF) and its component on the serum copper,zinc in chronic unpredictable mild stress(CUMS) model in rats.Method: Sixty male rats were divided into five groups randomly.The depression model was established by chronic unpredictable mild stress(CUMS) and living individually.On the second day,the adjusting zinc and copper group(3.25 g.kg-1) and the YQHTF group 7.0 g.kg-1 were administrated the diluent by intragastric injection with 10 mL.kg-1.The positive drug group was administrated the maprotiline by intragastric injection with 10 mg.kg-1.The model group and the control group were administrated the saline by intragastric injection with 10 mL.kg-1.During the experiment,the data of open-field test and the percentage of sucrose preference were detected.On day 23,all the rats were decapitated after the last treatment,then blood was immediately isolated for detecting the concentration of the level of serum copper and zinc by atomic absorption method.Result: The depression model was successfully established.Compared with control group,the serum copper level in the model rats was increased significantly and the serum zinc level was decreased significantly.YQHTF could reverse all these changes.The adjusting zinc and copper group could significantly increase the level of serum zinc and decrease the level of serum copper.Conclusion: YQHTF and its component have a good effect of anti-depression.It can improve the behavior of the depressed rats,increase serum copper level and decrease serum zinc level significantly in depressed rats.The adjusting zinc and copper group is likely the major components of YQHTF.福建省自然科学基金(2009J05089

烧结板布风的甲烷化流化床反应器建模与分析

以烧结板型气体分布器的甲烷化流化床反应器为研究对象,在ANSYS-FLUENT平台中利用用户自定义函数建立了烧结板型气体分布器的数学模型;并对过程反应动力学模型提出了合理的改进,在宏观上实现反应速率与催化剂浓度的正相关。通过模型的计算结果与实验数据对比验证了模型的有效性,在模拟结果的基础上对烧结板型气体分布器的甲烷化流化床反应器的参数分布进行了分析。结果表明:烧结板模型的引入可增强反应器入口边界描述的精确性,对反应动力学模型的合理改进可更好地反映甲烷化反应过程,提高了计算的精确性。国家自然科学基金(21576228

烧结板布风的甲烷化流化床反应器建模与分析

采用双流体模型对烧结板型气体分布器的甲烷化流化床反应器进行数值模拟,在ANSYS-FLUENT平台中利用用户自定义函数建立了烧结板型气体分布器的数学模型;并对过程反应动力学模型进行改进,在宏观上实现了反应速率与催化剂浓度的正相关;通过模型的计算结果与实验数据对比验证了模型的有效性.在模拟结果的基础上对烧结板型气体分布器的甲烷化流化床反应器的参数分布进行了分析,结果表明:烧结板模型的引入增强了反应器进口边界描述的精确性,对反应动力学模型的合理改进更好地反映了甲烷化反应过程,并更符合实验结果,从而提高了模拟计算的精确性.国家自然科学基金(21576228

Research of Artificial Neural Network Arithmetic Based on FPGA

[中文文摘]基于FPGA的神经网络实现方法已成为实际实时应用神经网络的一种途径。本文就十多年来基于FPGA的ANN实现作一个系统的总结,例举关键的技术问题,给出详细的数据分析,引用相关的最新研究成果,对不同的实现方法和思想进行讨论分析,并说明存在的问题以及改善方法,强调神经网络FPGA实现的发展方向和潜力及提出自己的想法。另外,还指出基于FPGA实现神经网络存在的瓶颈制约,最后对今后的研究趋势作出估计。[英文文摘]FPGA implementation of Artificial Neural Networks(ANNs)has been an approach of actual real-time neural network.This paper systematically reviews the progress that has been made in this research area over a decade,and lists the typical technology issues,shows detailed data analysis and newest research results,Simultaneously different implementation techniques and design are discussed,then existing problems and realizition constrains can be presented as well as improvement solutions,the development direction and potential of FPGA implement of ANN are proposed.Eventually future developments are expected.大学生创新性实验项目(2007年78号

基于分类的单实验事件相关电位估计方法

本文提出了一个基于机器学习的新方法,用以从单实验脑电信号中估计事件相关电位.为估计事件相关电位,首先构建了一个运用分类方法的基本框架和以此框架为基础的优化模型.在此基础上,引入lOgISTIC回归来实例化这个优化模型,并推导出SInglETrIAlEM算法.只要在使用之前训练得到一个lOgISTIC模型,SInglETrIAlEM算法就能够从单实验脑电信号中估计事件相关电位.模拟测试表明,本文的方法是正确稳定的,明显优于WOOdy过滤器方法.认知测试的结果与认知科学的各项结论一致.国家自然科学基金(批准号:NSFC30670669);国家重点基础研究发展计划(批准号:2007CB947703);福建省自然科学基金(批准号:2011J01344);福州大学科技发展基金(批准号:2009-XQ-25)资助项

事件诱发电位信号分类的时空特征提取方法

准确对事件诱发电位(ERPs)进行分类，对于各种人类认知研究和临床医学评估非常有意义．由于ERPs 信号是非常高维的数据，而且其中包含非常多的与分类无关的信息，从ERPs 信号中提取特征尤显重要．分析了共空间模式(CSP)的原理和不足，引入自回归(AR)模型与白化变换相结合，提出了针对ERPs 分类的时空特征提取方法，并设计了验证该方法的认知实 验，在认知实验数据上分别用时空特征提取方法与CSP 提取特征，用同样的分类器支持向量机(SVM)训练分类器，比较它们的分类效果．实验表明，在ERPs分类问题上，时空特征提取方法与CSP相比具有明显的优势，在参数确定合理的情况下，时空特征提取方法可使分类准确率达到90%以上．福州大学科技发展基金(2009-XQ-25)资助项目

Online Soft-measurement for Thermal Efficiency of Circulating Fluidized Bed Boilers

提出循环流化床(Cfb)锅炉热效率的在线软测量方法,该方法将效率分为煤燃烧效率和传热效率两部分,根据Cfb锅炉动态机理模型在线计算锅炉未燃烧碳量,在此基础上计算煤燃烧效率,再通过反平衡法和正平衡法计算锅炉传热效率,最后得到锅炉热效率.应用该方法对某440T/H循环流化床锅炉热效率进行了计算,分析了影响该锅炉热效率的主要因素.结果表明:影响锅炉热效率的最主要因素是烟气中的飞灰含量;该软测量方法适用于Cfb锅炉,能有效指导锅炉调控,从而提高锅炉热效率.An online soft-measuring method for thermal efficiency of the circulating fluidized bed boiler(CFB)is being proposed.The method divides the efficiency into two parts,coal combustion efficiency and heat transfer efficiency.On-line calculation for the unburned carbon content of the boiler is carried out according to the dynamic mechanism model of the CFB boiler,after that combustion efficiency of the coal is calculated.Then heat transfer efficiency is calculated by indirect heat balance and direct heat balance,finally the boiler thermal efficiency is obtained.The thermal efficiency of certain 440 t/h CFB was calculated by the method,and the main factors which influence the thermal efficiency of the boiler were analyzed.Results show that the main factor which influences the thermal efficiency of the boiler is the content of fly ash in the flue gas.The soft-measuring method is suitable for CFB boiler,which can effectively direct the control of the boiler,thus improving the thermal efficiency of the boiler.福建省科技基金资助项目(2007J0165

柴郁温胆汤及其拆方对抑郁大鼠血清ACTH、COR及海马cAMP的影响

[目的]探讨柴郁温胆汤及其拆方对抑郁大鼠血清ACTH、COR和海马cAMP的影响。[方法]健康雄性SD大鼠84只,随机分为正常组、模型组、柴郁温胆汤组、化痰组、调气血组、养心脾组、马普替林组。参照Katz刺激方法制备慢性轻度不可预见性应激(CUMS)抑郁模型。采用放射免疫法测血清ACTH、COR和大鼠海马cAMP含量。[结果]与正常组相比,模型组大鼠血清ACTH和COR水平明显升高、海马cAMP含量明显降低。同模型组相比,柴郁温胆汤组及调气血组能明显降低ACTH浓度(P<0.05);柴郁温胆汤组、化痰组和调气血组均能显著降低COR浓度(P<0.01);柴郁温胆汤组、化痰组和马普替林组均能够显著提升大鼠海马cAMP的含量(P<0.01)。[结论]慢性轻度不可预见性应激可以导致大鼠血清ACTH和COR水平升高;海马cAMP含量下降,柴郁温胆汤可以逆转这种改变,其中以调气血和化痰药作用为主,其机制可能与其参与调节HPA轴功能和细胞内信号传导有关