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Search Results: 1 - 10 of 95545 matches for " 阮怀林 "
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低信噪比下非凸化压缩感知超宽带信道估计方法
樊甫华,怀
电子学报 , 2014,
Abstract: 受感知信息算子矩阵相干性和噪声的影响,压缩感知超宽带(UWB)信道估计误差过大.为此,首先提出利用压缩观测信号加权构造自适应感知信息(ASI)算子矩阵的方法,ASI算子矩阵不仅具有弱相干性,而且包含观测信息,适用于重建算法选择最优稀疏表示原子.其次提出修正稀疏度自适应匹配追踪(SAMP)算法,无需稀疏度或信噪比的先验信息实现压缩感知稀疏信号准确重建.最后基于ASI算子矩阵和修正SAMP算法提出非凸化压缩感知UWB信道估计方法,理论分析和仿真结果均表明该方法能在低信噪比和极低压缩比下实现UWB信道的准确估计.
等阻抗超宽带高能微波发生器模拟研究
怀,刘濮鲲,存军
强激光与粒子束 , 2012,
Abstract: ?基于等阻抗-双脉冲成形线技术,建立了一个超宽带高能高功率微波发生器理论模型。计算机模拟结果表明:利用等阻抗超宽带高功率微波发生器,可以同时产生纳秒主脉冲和皮秒前沿脉冲;通过控制皮秒脉冲成形线输出开关闭合的延迟时间,可以调制皮秒脉冲和纳秒脉冲的输出电压比值;通过调节纳秒脉冲成形线与皮秒脉冲成形线的电容比值,可以控制皮秒脉冲的脉宽和皮秒脉冲的峰值电压;利用等阻抗超宽带高功率微波发生器,可以最大限度地提高辐射脉冲能量和整个系统的能量转换效率。
P物质参与伤害性刺激诱发的脊髓c-fos表达
怀
科学通报 , 1994,
Abstract: 据报道P物质(SubstanceP,SP)是伤害性初级传入末梢释放的一种兴奋性递质,在痛觉调制过程中,脊髓内SP起着传递痛觉信息和镇痛的双重作用,但这一结论多数是依据注入外源性SP的结果,至于内源性SP在镇痛与致痛中所起的作用,十分复杂,机理尚不清楚.本文应用对神经元功能活动进行细胞定位的c-fos技术,研究SP对伤害性刺激(Formalin,福尔马林,F)所激活的脊髓神经元的影响,进一步了解脊髓内P物质在痛觉调制中所起的作用.
吗啡及单胺类递质对脊髓内P物质痛觉调制作用的影响
怀
科学通报 , 1990,
Abstract: P物质(substanceP,SP)在脊髓内分布不均匀,它集中在背角,其中又以无髓鞘的伤害性初级传入纤维的末梢为最多,由此表明,SP可能是伤害性初级传入末梢释放的一种兴奋性递质。据报道,在痛觉调制过程中,脊髓内SP起着传递痛觉信息和镇痛的双重作用,但这些资料多数是将外源性SP注入鞘内或微电泳导入脊髓后所得出的结论。然而,在应用
异性拒绝对择偶价值感的影响:择偶计量器的检验
The Influence of Mate-Rejection on Self-Perceived Mate Value: Testing the Mating Sociometer
 [PDF]

鲁君,
Advances in Psychology (AP) , 2012, DOI: 10.12677/AP.2012.25038
Abstract: 采用回忆范式考察来自异性的拒绝对个体的积极/消极情感、自尊、择偶价值感及择偶标准的影响。实验结果发现:1) 来自异性的拒绝对个体的积极/消极情感产生了影响,自尊在两者之间起了完全的中介作用;2) 异性拒绝通过自尊对择偶价值感产生影响,而择偶价值感在自尊与择偶标准之间起中介作用,由此构建成了一个过程模型。本研究支持和扩展了KirkpatrickEllis(2001)所提出的特定领域社会计量器——择偶计量器的构想:自尊作为一种内在机制,调节着异性拒绝后个体的择偶价值感,并间接影响择偶标准。
The present study which using recall paradigm aimed to investigate the effect of  mate-rejection on positive affect and negative affect, self-esteem, self-perceived mate value, mate standard. The result showed: 1)  Mate-rejection makes an impact on positive affect and negative affect, while self-esteem plays fully the mediating role among them; 2) Self-esteem fully mediated the impact of mate-rejection on self-perceived mate value, and self-perceived mate value fully mediated the impact of self-esteem on mate standard, thus a process model was built. This research supports and expands a conceptualization of the domain-specific sociometer, which is derived from Kirkpatrick and Ellis (2001): self-esteem as a mechanism functions to calibrate self-perceived mate value in response to experiences of mate-rejection, and makes an indirect effect on mate standard.
DEALING WITH ABEL INVERSION BY USING LENGENDRE EXPANSIONS
用勒让德级数处理Abel变换

RUAN HUAI-LIN,WAN BAO-NIAN,ZHANG XIAN-MEI,LIU JIAN-KUN,
怀
,万宝年,张先梅,刘建坤

物理学报 , 2001,
Abstract: 提出了一种处理弱非中心对称Abel变换的新方法.把测量的积分值用Yasutomo的方法分成奇、偶两部分.非对称的原函数被表达为一个权函数和一个中心对称函数之积.对称函数用勒让德级数展开.级数的系数通过用最小二乘法来决定
Calculation and Simulation of the Position Area to Radar Using CEP
利用圆概率误差对雷达定位区域的计算及仿真

Ruan Huai-lin,Luo Jing-qing,Xia Da-yong,
怀
,罗景青,夏大永

电子与信息学报 , 2005,
Abstract: A new calculated method of the position area to radar is presented. The method is that the Circular Error Probability(CEP) of the smaller area is calculated using the parameters of the place of two and three radar devices. When CEP of some smaller area is less than or equal to the given value, the area belongs to the whole position area. By means of the method, the position area is gained and the position precision can be obtained.
刑法学研究之检讨与反思
陈泽宪,白建军,梁根,邓子滨,冯军,周少华,劳东燕,周光权,刘艳红,车浩,,孙万怀,王利荣,欧阳本棋,李川
法学研究 , 2013,
Abstract: 本刊编辑部和东南大学法学院于2012年10月13-14日在江苏溧阳联合举办了“刑法学研究之检讨与反思”理论研讨会,作为“法学研究转型”系列研讨会之一。本次研讨会邀请刑法学领域的专家学者,围绕着刑法学研究中存在的问题和不足进行会诊,旨在为刑法学的未来发展指点方向。
STUDY OF THE ELECTRON THERMAL CONDUCTIVITY OF THE OHMICALLY HEATED DISCHARGES IN THE HT-7 TOKAMAK
HT-7托卡马克等离子体欧姆放电时电子热扩散系数的研究

ZHANG XIAN-MEI,WAN BAO-NIAN,Ruan Huai-lin,WU Zhen-wei,HT-GROUP,
张先梅
,万宝年,怀,吴振伟,HT-组

物理学报 , 2001,
Abstract: The electron thermal conductivity in the HT-7 tokamak is obtained by analyzing the electron power balance. In the HT-7 device, the electron thermal convection loss can be neglected, compared with ohmic input power, and the thermal conduction loss is the main energy loss mechanism. The electron thermal diffusion coefficient increases with the minor radius, and is about 100 times larger than the neo-classical theory calculation. After siliconization, the electron thermal diffusion coefficient decreases obviously at the outer half region, and the energy confinement time is prolonged.
LD-pumped Nd:LuVO4/Cr4+:YAG Passively Q-switched Laser
LD泵浦Nd∶LuVO4/Cr4+∶YAG被动调Q激光器

( National Key Lab of Crystal Materials,Shandong University,Jinan ( School of Engineering,Technology,Shenzhen University,Shenzhen,
王正平
,杜晨,怀,双琛,胡大伟,王营,许心光,王继扬,邵宗书

光子学报 , 2006,
Abstract: 采用大功率半导体激光器端面泵浦Nd:LuVO4晶体,利用Cr4 :YAG晶体作为可饱和吸收元件,实现了1.06 μm激光的被动调Q运转.在泵浦功率为19.1 W时,获得最高平均输出功率为4.58 W,脉冲宽度为84 ns,单脉冲能量为36.6 μJ以及峰值功率为436.2 W的激光脉冲.
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