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Search Results: 1 - 10 of 78322 matches for " CHEN Shiming "
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Modeling and stability analysis of social foraging swarms in multi-obstacle environment

Shiming CHEN,Huajing FANG,

控制理论与应用 , 2006,
Abstract:
On the Theoretical Value and Practical Significance of the Anti-Poverty Thought of Socialism with Chinese Characteristics  [PDF]
Shiming Liu
Open Journal of Social Sciences (JSS) , 2018, DOI: 10.4236/jss.2018.611010
Abstract: The anti-poverty thought of socialism with Chinese characteristics has important theoretical and practical significance. In terms of theoretical value, it continues to develop and innovate Marx’s anti-poverty theory in China. In practical terms, it has successfully guided China’s anti-poverty cause and made remarkable achievements, providing valuable experience for China and the world to continue to improve the conditions for people’s survival and development.
An Intelligent Diagnosis Method for Rotating Machinery Using Least Squares Mapping and a Fuzzy Neural Network
Ke Li,Peng Chen,Shiming Wang
Sensors , 2012, DOI: 10.3390/s120505919
Abstract: This study proposes a new condition diagnosis method for rotating machinery developed using least squares mapping (LSM) and a fuzzy neural network. The non-dimensional symptom parameters (NSPs) in the time domain are defined to reflect the features of the vibration signals measured in each state. A sensitive evaluation method for selecting good symptom parameters using detection index (DI) is also proposed for detecting and distinguishing faults in rotating machinery. In order to raise the diagnosis sensitivity of the symptom parameters the synthetic symptom parameters (SSPs) are obtained by LSM. Moreover, possibility theory and the Dempster & Shafer theory (DST) are used to process the ambiguous relationship between symptoms and fault types. Finally, a sequential diagnosis method, using sequential inference and a fuzzy neural network realized by the partially-linearized neural network (PLNN), is also proposed, by which the conditions of rotating machinery can be identified sequentially. Practical examples of fault diagnosis for a roller bearing are shown to verify that the method is effective.
Inhibitory effects of chitosan on superoxide anion radicals and lipid free radicals
Wenjun Li,Xuan Jiang,Peihua Xue,Shiming Chen
Chinese Science Bulletin , 2002, DOI: 10.1360/02tb9198
Abstract: With the electron spin resonance (ESR) technique, the inhibitory effects of chitosan on superoxide anion radicals and linoleic acid lipid radicals were found. The inhibitory ratio E for these two kinds of radicals is in proportion to the concentration of chitosan. It was also observed that E for linoleic acid lipid radicals increased with the increase of the degree of deacetylation and decreased with the increase of the molecular weight of chitosan.
The temperature-moisture fluctuation character of sound lump echoes
声回波团块结构的温湿脉动特征

Chen Yanjuan,Li Shiming,
陈炎涓
,李诗明

大气科学 , 1984,
Abstract: 本文分析了北京地区暖湿时期的声回波团块结构与温湿脉动量的关系,得到下面三点初步结果:1.温湿脉动联合作用结果的声折射率脉动方差(n~2)随时间的起伏变化与声回波强度随时间变化的团块结构形态非常相似.2.从声回波团块结构的传真图片类型特征来看是属于潮湿型的,其湿空气稳定度层结(考虑水汽通量作用)是接近中性层结.3.在有团块回波时期的声折射率脉动(n)谱值比无团块回波时期的n谱值要大10倍.
Some characteristics of temperature-humidity pulsation during warm and humid season in Beijing
北京暖湿季节温湿脉动某些特征

Chen Yanjuan,Li Shiming,
陈炎涓
,李诗明

大气科学 , 1988,
Abstract: 本文利用温度脉动和湿度脉动仪的观测资料,结合气象塔平均气象资料和天气条件,对北京暖湿季节的温湿湍流特征进行初步分析,结果指出:雷雨期间大气边界层里,在惯性区间内,温度脉动功率谱的斜率接近负二次幂;稳定天气时,温度脉动功率谱的斜率随风速减小而变陡,当平均风速小于1m/s时,谱的斜率接近负二次幂。 温度与水汽脉动相关系数,在雷雨与锋前暖区天气为正相关,随频率增大而减小;在晴天夜晚稳定天气时,低频段为负值,高频段为弱的正相关。在暖湿稳定天气条件时,水汽脉动对声折射率脉动的百分贡献比其它天气条件时大。
Advanced treatment of dying and printing wastewater using microflocculation direct filtration-UF combination process
微絮凝直接过滤-超滤组合工艺深度处理印染废水

Chen Shiming,Liu Ling,
陈士明
,刘玲

环境工程学报 , 2011,
Abstract: Microflocculation direct filtration as the pretreament process of ultrafiltration was used for the advanced treament of secondary effluent of dyeing wastewater.The treatment efficiency and different pretreatment methods such as microflocculation,sand filtration and microflocculation direct filtration on the impact of ultrafiltration membrane fouling were investigated.The experimental results show that the removal rates of turbidity,color and COD are 99.2%,87% and 56%,respectively.The effluent quality of the...
Inhibitory effects of chitosan on superoxide anion radicals and lipid free radicals

LI Wenjun,JIANG Xuan,XUE Peihua,CHEN Shiming,

科学通报(英文版) , 2002,
Abstract: With the electron spin resonance (ESR) technique, the inhibitory effects of chitosan on superoxide anion radicals and linoleic acid lipid radicals were found. The inhibitory ratio E for these two kinds of radicals is in proportion to the concentration of chitosan. It was also observed that E for linoleic acid lipid radicals increased with the increase of the degree of deacetylation and decreased with the increase of the molecular weight of chitosan.
Transcription Coactivators p300 and CBP Are Necessary for Photoreceptor-Specific Chromatin Organization and Gene Expression
Anne K. Hennig, Guang-Hua Peng, Shiming Chen
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0069721
Abstract: Rod and cone photoreceptor neurons in the mammalian retina possess specialized cellular architecture and functional features for converting light to a neuronal signal. Establishing and maintaining these characteristics requires appropriate expression of a specific set of genes, which is tightly regulated by a network of photoreceptor transcription factors centered on the cone-rod homeobox protein CRX. CRX recruits transcription coactivators p300 and CBP to acetylate promoter-bound histones and activate transcription of target genes. To further elucidate the role of these two coactivators, we conditionally knocked out Ep300 and/or CrebBP in differentiating rods or cones, using opsin-driven Cre recombinase. Knockout of either factor alone exerted minimal effects, but loss of both factors severely disrupted target cell morphology and function: the unique nuclear chromatin organization seen in mouse rods was reversed, accompanied by redistribution of nuclear territories associated with repressive and active histone marks. Transcription of many genes including CRX targets was severely impaired, correlating with reduced histone H3/H4 acetylation (the products of p300/CBP) on target gene promoters. Interestingly, the presence of a single wild-type allele of either coactivator prevented many of these defects, with Ep300 more effective than Cbp. These results suggest that p300 and CBP play essential roles in maintaining photoreceptor-specific structure, function and gene expression.
声回波团块结构的温湿脉动特征
陈炎涓 Chen Yanjuan,李诗明 Li Shiming
大气科学 , 1984, DOI: 10.3878/j.issn.1006-9895.1984.04.05
Abstract: 本文分析了北京地区暖湿时期的声回波团块结构与温湿脉动量的关系,得到下面三点初步结果:1.温湿脉动联合作用结果的声折射率脉动方差(n~2)随时间的起伏变化与声回波强度随时间变化的团块结构形态非常相似.2.从声回波团块结构的传真图片类型特征来看是属于潮湿型的,其湿空气稳定度层结(考虑水汽通量作用)是接近中性层结.3.在有团块回波时期的声折射率脉动(n)谱值比无团块回波时期的n谱值要大10倍.
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