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Search Results: 1 - 10 of 261866 matches for " 张智 "
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我国优秀传统文化素养人口学特征研究
The Demographic Characteristic Study on Chinese Citizens’ Excellent Traditional Culture Literacy
 [PDF]

梁星,
Modern Anthropology (MA) , 2016, DOI: 10.12677/MA.2016.42002
Abstract:
针对社会转型时期出现的价值迷茫和道德失衡,我国也同其他国家一样,试图从传统文化中寻求答案。因此,探讨当代人优秀传统文化素养特征就成为当今价值研究的迫切课题。2100份问卷调查结果表明,传统文化素养在人口学变量上呈现出显著差异:传统文化素养与婚姻、年龄、信仰呈显著性正相关关系,与居住地呈显著负相关关系。即:年龄越大,传统文化素养越高;已婚者传统文化素养高于未婚者;有宗教信仰者高于无信仰者;城市居民优秀传统文化素养高于农村居民。这一结论不仅再现了当代人优秀传统文化素养个体差异,也为继承和发扬优秀传统文化提供了可资借鉴的依据。
Aiming at the value-confused and moral-unbalanced phenomenon in the society transformation period of China, this paper attempts to probe the solution from traditional culture. A survey of 2100 questionnaires indicates that Chinese citizens’ excellent traditional culture literacy is significantly different on demographic variables. The citizens’ culture literacy has significant positive correlations with marital status, age and belief while negatively related to gender, education and vocation. That is to say: the older the people, the higher the culture literacy they have; married people have higher culture literacy than those unmarried. Religious people’s culture literacy is higher than those nonreligious. Urban citizens have much higher culture literacy than those of rural areas. This conclusion not only shows the different features of the excellent traditional culture literacy, but also provides a good reference to the inheritance and development of the excellent traditional culture.
绞股蓝属一新种

植物分类学报 , 1991,
Abstract:
LQl600K打印机打印针检测程序

计算机系统应用 , 1993,
Abstract:
穿琥宁合茴芥散治疗毛细支管炎46例
,
中国中医药信息杂志 , 2003,
Abstract:
贝卡里亚启蒙思想的苏格兰渊源——以《论犯罪与刑罚》为中心

- , 2017, DOI: 10.16382/j.cnki.1000-5579.2017.03.004
Abstract: 摘要 除法国启蒙思想家之外,贝卡里亚还受到了苏格兰启蒙思想家,尤其是哈奇森和休谟的影响。和休谟一样,贝卡里亚肯定商业社会的文明价值,并从法律的角度进行了思考。他的思考受到了“人的科学”的影响。而在立法、法律和刑罚等问题上,他则从社会效用的角度出发,借鉴了哈奇森的思想,发展出了自己的话语。他反对酷刑和死刑,认为立法的原则之一是最大多数人分享最大的幸福。但随着思想的发展,贝卡里亚逐步摆脱单纯的功利主义式的幸福和效用,而强调正义和人道主义。对贝卡里亚思想与苏格兰启蒙运动之间联系的考察,不但能加深对于其个人思想的理解,而且能展现欧洲启蒙思想的丰富性和交互性。
Abstract:Besides French Enlightenment, Beccaria is influenced by Scottish Enlightenment, especially Francis Hutcheson and David Hume. Just like Hume, Beccaria emphasizes the value of a modern commercial society and tries to discuss this topic from the perspective of law. Influenced by the "science of human", his consideration involves some metaphysical themes such as justice and morality. Beccaria develops his own discourse by learning from Hutcheson when he considers the themes of legislation, laws and punishments from the perspective of social utility. He opposes the death penalty and torture, arguing that one of the principles of legislation should be "the greatest possible happiness for the greatest possible number of individuals". With the development of his thought, Beccaria gradually attaches the importance to justice and humanism instead of happiness and utility. To study the relationship between Beccaria and Scottish Enlightenment can not only deepen our understanding of Beccaria but reveal the richness of and the interaction in European Enlightenment as well.
刺五加提取物对人脐静脉内皮细胞紫外线辐射损伤的防护作用

- , 2018, DOI: 10.13982/j.mfst.1673-9078.2018.2.008
Abstract: 研究刺五加提取物对紫外线辐射损伤人脐静脉内皮细胞(Human umbilical vein endothelial cell,HUVEC)的影响。将进入对数生长期的HUVEC细胞分为空白对照组、辐射组、给药预防组(低、中、高剂量)和给药修复组(低、中、高剂量)。各组均接受相同辐射,给药预防组提前加入不同质量浓度的刺五加提取物孵化12 h。采用MTT法检测细胞存活率,TBA法检测丙二醛(MDA)含量,WST法检测超氧化物歧化酶(SOD)水平,通过DNA-Ladder检测细胞凋亡。结果表明:经辐射后,给药预防组和给药修复组细胞存活率均有所提高,且呈质量浓度依赖性。与空白对照组相比,辐射组MDA含量升高,SOD水平下降;与辐射组比较,实验组给药后MDA含量降低,SOD水平升高。DNA-Ladder可以得到明显DNA凋亡条带。刺五加提取物能有效预防和修复辐射损伤的HUVEC细胞,且上述试验中给药预防组效果均优于给药修复组。
The effect of Acanthopanax senticosus extract on the ultraviolet radiation injury of human umbilical vein endothelial cells (HUVEC) was investigated. The HUVEC cells entering the logarithmic growth phase were divided into blank control group, radiation group, drug prevention group (low, middle and high dose) and drug repair group (low, middle and high dose). Each group received the same radiation, and the drug prevention group was hatched for 12 h by adding different concentrations of Acanthopanax senticosus extract. The cell viability was measured by MTT assay and the content of malondialdehyde (MDA) was detected by TBA method. The level of superoxide dismutase (SOD) was detected by WST method. The apoptosis was detected by DNA-Ladder. The result showed that after radiation, the cell viability in the drug prevention group and the drug repair group were both increased in a concentration-dependent manner. Compared with the blank control group, the content of MDA in radiation group increased and the level of SOD decreased. Compared with the radiation group, the content of MDA decreased and the level of SOD increased in the experimental group. DNA-Ladder could obtain obvious DNA apoptotic bands. Acanthopanax senticosus extract could effectively prevent and repair radiation-injured HUVEC cells, and the preventive effect of the drug prevention group of the above-mentioned test was superior to the drug repair group.
一种基于压缩采样的SDR接收机AIC前端设计
A Design of AIC for SDR Front-End Based on Compressive Sampling
 [PDF]

洪峰, 钱建, 赵毅
Hans Journal of Wireless Communications (HJWC) , 2014, DOI: 10.12677/HJWC.2014.46019
Abstract:
传统的射频六端口网络可以直接将射频信号下变频为基带信号,它的输出功率中包含输入信号的相位和幅度信息。在A/D采样后,我们可以得到的基带信号,但这将面临高采样率的问题。压缩采样可以以远低于奈奎斯特采样速率对信号进行有用信息的采集。该文将压缩采样技术用于六端口直接变频接收机中,提出用一种新颖的模拟信息转换器件(AIC)。这个AIC可以以较低的采样速率获取大量的数据。该AIC可能成为软件无线电接收的一个满意前端。文章对AIC前端做了性能仿真。
Conventional six-port network can down convert the RF signal to baseband directly; its output power contains the phase and amplitude information. We can get baseband signal after the A/D sampling, but it will face the problem of high sampling rate. Compressive sampling can get the useful dates at a lower sampling frequency than Nyquist rate. The paper uses compression sam-pling technique into Six-port direct conversion receiver and proposes a new analog to information conversion (AIC). The AIC can obtain large amounts of data at a lower sampling rate. The AIC may be a satisfactory front-end of software defined radio. This article does a performance simulation of AIC front-end.
跳频压缩采样的快速重构研究
Research on Fast Reconstruction of Frequency Hopping Using Compressive Sampling
 [PDF]

赵毅, 洪峰, 钱建
Hans Journal of Wireless Communications (HJWC) , 2015, DOI: 10.12677/HJWC.2015.51003
Abstract:
受奈奎斯特采样定理的限制,对跳频信号进行传统采集需要很高的采样率,带来高昂的处理代价,压缩采样理论突破了奈奎斯特采样定理的限制,可大幅度降低信息采样率。本文以每个跳频频点最近的连续三个原子基作为该跳频频点的稀疏表示块进行迭代,削弱了相邻跳信号频率突变引起的瞬间频率展宽和数据符号调制带来的频偏影响,使之更适合实际跳频信号场合。仿真结果验证了修正的稀疏度自适应匹配追踪算法的有效性,提高了重构算法的性能。并且本文将修正的算法在不同M值下的重构概率与原算法进行了对比。
Limited by the Nyquist sampling theorem, for traditional frequency hopping signals acquisition which needs very high sampling rate and high processing cost, compression sampling theory breaks through the limitation of the Nyquist sampling theorem, and the sampling rate can be significantly reduced. The paper proposes an iteration that takes three continuous atomic bases, which have got the nearest hopping point, as the sparse representation block of this hopping point. This algorithm weakens instantaneous frequency bandwidth caused by the adjacent signal frequency mutation and the modulated data symbol brings frequency deviation effect, and makes it more suitable for the actual frequency hopping signal. The simulation results verify the correction of the effectiveness of the sparse degree of adaptive matching pursuit algorithm, which improves the performance of reconstruction algorithm. Moreover, the paper compares the correction algorithm’s reconstruction probability with the original algorithm under different M value.
“机器换人”补贴方式比较研究—基于广义纳什讨价还价机制
Research on Comparison of Financial Subsidy Types for “Replacing Man with Machine”—Based on Generalized Nash Bargaining Scheme
 [PDF]

孙玉卫,
Management Science and Engineering (MSE) , 2016, DOI: 10.12677/MSE.2016.52010
Abstract: “机器换人”的一种财政补贴方式是政府部门按照设备价格的某一固定比例对设备应用企业进行补贴,另一种则是政府部门按照每台(套)设备可获某一固定资金额度补贴的方式补贴给设备应用企业。本文以广义的纳什讨价还价机制为理论基础,在两种补贴方式下分别建立了设备供应商与应用企业的讨价还价模型,从而考察并比较了两种补贴方式的补贴效果。研究发现,在相同数量补贴资金下,固定额度补贴所引起的购买设备的应用企业数量增加量不会小于固定比例补贴,并且能使得这些应用企业购买设备所获净效益增加量大于固定比例情况下的增加量。
There are two financial subsidy types for “replacing man with machine”, one of which is fixed ratio subsidy that government provides subsidy for equipment buyer by a certain ratio of equipment price, and the other of which is fixed volume subsidy that government provides subsidy for equipment buyer by a specific amount of money. Based on Generalized Nash Bargaining Scheme, bargaining models between equipment supplier and buyer were established respectively under the two subsidy types to investigate and compare the effectiveness of government subsidy. It is found that fixed volume subsidy, under the same amount of subsidy capital, can incentive more equipment purchase and the net benefit of these enterprises increases more than that under fixed ratio subsidy.
以MIDAS模型探讨亚洲股票市场的期望报酬与风险之关联
Using the MIDAS Model to Investigate the Relationship between Expected Return and Risk in Asian Equity Markets
 [PDF]

王铭杰,
Service Science and Management (SSEM) , 2016, DOI: 10.12677/SSEM.2016.54B003
Abstract:
本文使用混和数据抽样(MIDAS, mixed data sampling)模型,探讨亚洲主要股票市场的期望报酬与风险之间的抵换关系,经由观察每日市场报酬的波动,给予适当且弹性的权重,来估计每月的条件变异数,并与使用每月报酬数据做为条件变异数基础的ARCH模型相比较,检定何种模型较能够解释期望报酬与风险的正向关系。本文实证结果得到,使用MIDAS模型有较多股票市场能得到正向的结果,表示能有效衡量期望报酬与风险之间的关系。然而,就模型配适度而言,ARCH模型对市场报酬的预测误差少于MIDAS模型,故MIDAS模型的使用仍有所限制。
We used the MIDAS (mixed data sampling) model to investigate the risk and expected return trade-off in major Asian equity markets. The optimal and flexible weighted of lagged daily squared market returns were adapted as the variance estimator to predict the monthly variance. In terms of the ARCH model that adapts the monthly squared returns as the variance estimator, we examined which model has greater statistical power to explain the positive relationship between risk and expected return. Our results proved that the MIDAS estimator had the ability to find more markets that had the positive and significant relationships. However, the pricing errors of the ARCH model were less than the MIDAS model, when we considered the fitness of the models. This evidence suggested that the MIDAS model cannot outperform the ARCH model in predicting market return.
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