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我国城市贫困群体的权利现状分析——基于阿玛蒂亚.森的权利理论

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特区经济 2009年第1期240卷 267-269页

作者：曾敏玉林师范学院社科部广西玉林537000

经济贫困是权利贫困的折射和表现,"交换权利"不足或恶化就会导致贫困的产生。本文运用印度经济学家阿玛蒂亚.森的理论分析中国城市贫困群体的权利现状,可以发现:除以生产为基础的权利无法获取外,以贸易为基础的权利、自己劳动的权利、... 详细信息

经济贫困是权利贫困的折射和表现,"交换权利"不足或恶化就会导致贫困的产生。本文运用印度经济学家阿玛蒂亚.森的理论分析中国城市贫困群体的权利现状,可以发现:除以生产为基础的权利无法获取外,以贸易为基础的权利、自己劳动的权利、继承与转移的权利都在不同程度上恶化,这是城市贫困群体出现和扩大的根本原因。从权利理论的视角反贫困,政府的工作重点应当是采取多种手段和措施改善构成"交换权利"的四种权利。

关键词：城市贫困群体交换权利权利理论

Terephthalic acid wastewater treatment by using two-stage aerobic process

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Journal of Environmental Sciences 1999年第1期11卷 97-103页

作者： Qi Hui min, Liu Nian zeng, Cui Feng Fushun Research Institute of Petroleum and Petrochemicals, SINOPEC, Fushun, Liaoning 113001, China

Based on the tests between anoxic and aerobic process, the two stage aerobic process with a biological selector was chosen to treat terephthalic acid wastewater (PTA). By adopting the two stage aerobic process, the COD Cr in PTA wastewater could be reduced from 4000—6000 mg/L to below 100 mg/L; the COD loading in the first aerobic tank could reach 7 0 to 8 0 kgCOD Cr /(m 3·d) and that of the second stage was from 0 2 to 0 4 kgCOD Cr /(m 3·d). Further researches on the kinetics of substrate degradation were carried out.

关键词： PTA wastewater two stage aerobic treatment.

含碳纳米管微波吸收材料的制备及其微波吸收性能研究

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无机材料学报 2005年第3期20卷 608-612页

作者：赵东林沈曾民北京化工大学可控化学反应科学与技术基础教育部重点实验室碳纤维及复合材料研究所北京100029

用竖式炉流动法,以二茂铁为催化剂,噻吩为助催化剂,苯为碳源通过催化裂解反应制备了碳纳米管,碳纳米管的外径为20-50nm,内径10-30nm,长度50-1000μm.分别以碳纳米管、羰基铁粉、碳纳米管与羰基铁粉的混合物为吸收剂制备了微波吸收材料,... 详细信息

用竖式炉流动法,以二茂铁为催化剂,噻吩为助催化剂,苯为碳源通过催化裂解反应制备了碳纳米管,碳纳米管的外径为20-50nm,内径10-30nm,长度50-1000μm.分别以碳纳米管、羰基铁粉、碳纳米管与羰基铁粉的混合物为吸收剂制备了微波吸收材料,研究了上述三种微波吸收材料在2-18GHz的吸波性能,与纯碳纳米管和纯羰基铁粉微波吸收材料相比, 碳纳米管与羰基铁粉复合微波吸收材料在2-18GHz的吸收峰明显向低频移动.在含碳纳米管的微波吸收材料中,碳纳米管作为偶极子在交变电场的作用下,产生极化电流,电磁波的能量转换为其他形式的能量,瑞利散射效应和界面极化也是含碳纳米管微波吸收材料的主要吸波机理.

关键词：碳纳米管羰基铁粉微波吸收材料微波吸收性能

Role of free fatty acids in proliferation of rat hepatic stellate cells(Ⅱ)

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World Journal of Gastroenterology 1998年第6期4卷 45-47页

作者： LU Lun Gen, zeng min De, LI Ji Qiang, HUA Jing, FAN Jian Gao and QIU De Kai

AIM To study the role of free fatty acids (arachidonic acid and linoleic acid) in proliferation of rat hepatic stellate cells (HSC). METHODS HSC were isolated and cultured from liver of Wistar rats by in situ perfusion with pronase and collagenase, and density gradient centrifugation with Nycodenz. MTT colorimetric assay was detected for HSC proliferation. RESULTS Arachidonic acid and linoleic acid had an effect on proliferation of HSC. Arachidonic acid of 25mg/L promoted HSC proliferation ( P 0 05), but with concentration increasing, 50 and 100mg/L of linoleic acid might promote HSC proliferation ( P <0 05 or 0 01). CONCLUSION Arachidonic acid and linoleic acid may promote HSC proliferation, but increased concentration can have cytotoxity on HSC. Arachidonic acid and linoleic acid might be associated with fatty liver and hepatic fibrogenesis by lipid peroxidation.

关键词： hepatic stellate cell free fatty acids arachidonic acid linoleic acid cell proliferation

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分子模拟在脱硫机理研究中的应用

现代化工 2006年第4期26卷 66-69,73页

作者：曾勇平闵元增居沈贵南京工业大学化学化工学院江苏南京210009

总结了分子力学和量子力学方法在脱硫机理研究中的应用。简要介绍了各分子力学方法在吸附脱硫中的应用,重点介绍了量子力学方法的相关软件及其应用。详细阐述了量子力学用于研究π络合、团簇模型、金属表面吸附和金属配位作用。同时展... 详细信息

总结了分子力学和量子力学方法在脱硫机理研究中的应用。简要介绍了各分子力学方法在吸附脱硫中的应用,重点介绍了量子力学方法的相关软件及其应用。详细阐述了量子力学用于研究π络合、团簇模型、金属表面吸附和金属配位作用。同时展望了量子力学和分子力学的组合方法在脱硫机理方面良好的应用前景。

关键词：分子模拟脱硫机理应用

Versatile SrFeO_(x) for memristive neurons and synapses

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Journal of Materiomics 2022年第5期8卷 967-975页

作者： Kaihui Chen Zhen Fan Jingjing Rao Wenjie Li Deming Wang Changjian Li Gaokuo Zhong Ruiqiang Tao Guo Tian minghui Qin min zeng Xubing Lu Guofu Zhou Xingsen Gao Jun-ming Liu Institute for Advanced Materials South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China Guangdong Provincial Key Laboratory of Optical Information Materials and Technology&National Center for International Research on Green Optoelectronics South China Academy of Advanced OptoelectronicsSouth China Normal UniversityGuangzhou510006China School of Physics and Telecommunication Engineering South China Normal UniversityGuangzhou510006China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen518055China Shenzhen Institute of Advanced Technology Chinese Academy of SciencesShenzhen518055China Laboratory of Solid State Microstructures and Innovation Center of Advanced Microstructures Nanjing UniversityNanjing210093China

Spiking neural network(SNN)consisting of memristor-based artificial neurons and synapses has emerged as a compact and energy-efficient hardware solution for spatiotemporal information ***,it is challenging to develop memristive neurons and synapses based on the same material system because the required resistive switching(RS)characteristics are ***,it is shown that SrFeO_(x)(SFO),an intriguing material system exhibiting topotactic phase transformation between insulating brownmillerite(BM)SrFeO_(2).5 phase and conductive perovskite(PV)SrFeO_(3) phase,can be engineered into both neuronal and synaptic *** a BM-SFO single layer as the RS medium,the Au/BM-SFO/SrRuO_(3)(SRO)memristor exhibits nonvolatile RS behavior originating from the formation/rupture of PV-SFO filaments in the BM-SFO *** contrast,using a PV-SFO(matrix)/BM-SFO(interfacial layer)bilayer as the RS medium,the Au/PV-SFO/BM-SFO/SRO memristor exhibits volatile RS behavior originating from the interfacial BM-PV phase *** and neuronal characteristics are further demonstrated in the Au/BM-SFO/SRO and Au/PV-SFO/BM-SFO/SRO memristors,*** the SFO-based synapses and neurons,fully memristive SNNs are constructed by simulation,which show good performance on unsupervised image *** study suggests that SFO is a versatile material platform on which both neuronal and synaptic devices can be developed for constructing fully memristive SNNs.

关键词： Memristors Artificial synapses Artificial neurons Spiking neural network SrFeO_(x)