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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2015年第1期16卷 78-86页

作者： Hui-yong PENG Chang-feng man Juan XU Yu FAN Cancer Institute the Affiliated People's Hospital Jiangsu University

Objective： To investigate whether elevated homocysteine levels were a predictor of subsequent coronary heart disease （CHD） mortality, cardiovascular mortality or all-cause mortality in the general population by a meta- analysis. Methods： In a systematic search conducted in the databases of PubMed and Embase prior to October 2013, we identified relevant prospective observational studies evaluating the association between baseline homocysteine levels and CHD mortality, cardiovascular or all-cause mortality in the general population. Pooled adjust risk ratio （RR） and corresponding 95% confidence interval （CI） were calculated separately for categorical risk estimates and con- tinuous risk estimates. Results： Twelve studies with 23 623 subjects were included in the meta-analysis. Comparing the highest to lowest homocysteine level categories, CHD mortality increased by 66% （RR 1.66; 95% CI 1.12-2.47; P=-0.012）, cardiovascular mortality increased by 68% （RR 1.68; 95% CI 1.04-2.70; P=0.033）, and all-cause mortality increased by 93% （RR 1.93; 95% CI 1.54-2.43; P〈0.001）. Moreover, for each 5 pmol/L homocysteine increment, the pooled RR was 1.52 （95% CI 1.26-1.84; ,〈0.001） for CHD mortality, 1.32 （95% CI 1.08-1.61; P=0.006） for cardio- vascular mortality, and 1.27 （95% CI 1.03-1.55; P=-0.023） for all-cause mortality. Conclusions： Elevated homocysteine levels are an independent predictor for subsequent cardiovascular mortality or all-cause mortality, and the risks were more pronounced among elderly persons.

关键词： Homocysteine Coronary heart disease Cardiovascular mortality All-cause mortality Meta-analysis

Influence and mechanism of Indonesia vanadium titano-magnetite on metallurgical properties of iron ore sinter

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Journal of Central South University 2017年第12期24卷 2805-2812页

作者： GAO Qiang-jian WEI Guo SHEN Yan-song JIANG Xin ZHENG Hai-yan SHEN feng-man LIU Chang-sheng School of Metallurgy Northeastern University Shenyang 110819 China School of Chemical Engineering University of New South Wales Sydney 2052 Australia

In order to provide a reliable reference for utilizing Indonesia vanadium titano-magnetite(VTM) in blast furnace(BF) economically, metallurgical properties of iron ore sinter with addition of Indonesia VTM in mixed sintering materials were investigated, including low-temperature reduction degradation index(RDI), reducibility index(RI), and softening/melting properties. Additionally, influenced mechanism of Indonesia VTM on metallurgical properties of sinter was studied. It is found that adding Indonesia VTM in sintering process quickly increases the RDI of sinters, and decreases the RI from 78.02% to 68.43%. Moreover, both beginning temperature(T_4) and final temperature(TD) of softening/melting increase gradually, and cohesive zone temperature range(T_D–T_4) enlarges from 219 oC to 315 oC. As a result, the permeability of cohesive zone gets worse, which is proven by the higher maximum pressure drop(δPmax) in softening/melting experiments. It is concluded that, after comprehensively considering all metallurgical properties mentioned above, the proper proportion of Indonesia VTM in sintering process is proposed in the new raw materials conditions.

关键词： Indonesia vanadium titano-magnetite sinter reduction degradation index reducibility index softening and melting properties

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区间2型T-S模糊系统的事件触发预测控制

控制理论与应用 2022年第8期39卷 1471-1478页

作者：周靖峰胡满峰江南大学理学院江苏无锡214000

本文研究了前提不匹配的区间2型(IT2)模糊系统的事件触发预测控制问题.首先,提出了一个IT2模糊系统模型,包括动态事件触发机制(ETM)和预测控制器,ETM可以通过减少传输的数据包数量来节省有限的网络资源,预测控制器可以预测两个成功传输... 详细信息

本文研究了前提不匹配的区间2型(IT2)模糊系统的事件触发预测控制问题.首先,提出了一个IT2模糊系统模型,包括动态事件触发机制(ETM)和预测控制器,ETM可以通过减少传输的数据包数量来节省有限的网络资源,预测控制器可以预测两个成功传输时刻之间的系统状态来处理不可靠的通信网络.其次,根据李雅普诺夫稳定性理论和前提不匹配方法,得到了系统稳定的充分条件.然后,根据线性矩阵不等式(LMI)得到控制器增益.最后通过数值模拟验证了方法的有效性.

关键词：模糊系统预测控制事件触发机制李雅普诺夫稳定性理论线性矩阵不等式

Molecular template derived ultrathin N-doped carbon layer on cobalt selenide nanobelts for durable and rapid sodium storage

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Nano Research 2024年第9期17卷 8145-8154页

作者： Chuanliang Wei Baojuan Xi Kangdong Tian Xinlu Zhang Quanyan man Keyan Bao Wutao Mao Jinkui feng Shenglin Xiong Key Laboratory of the Colloid and Interface Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringSchool of Materials Science and EngineeringShandong UniversityJinan 250100China Resource Environment and Clean Energy Laboratory School of Chemical and Environmental EngineeringJiangsu University of TechnologyChangzhou 213001China

Sodium-ion batteries(SIBs)are an attractive battery system because of similar characteristics to lithium-ion batteries(LIBs)and large Na element ***,exploring stable,high-capacity and high-rate anode materials for SIBs is still challenging ***,diethylenetriamine(DETA)molecular template derived ultrathin N-doped carbon(NC)layer decorated CoSe_(2)nanobelts(CoSe_(2)/NC)are prepared by solvothermal reaction followed by calcination *** CoSe_(2)/NC exhibits large potential as an anode for *** and theoretical calculations reveal that the in situ formed conductive ultrathin NC layer can not only relieve the volume change of CoSe_(2)but also accelerate electron and ion *** addition,the nanobelt structure of CoSe_(2)/NC with abundant exposed active sites can obviously accelerate the electrochemical *** the synergistic effect of special nanobelt structure and NC layer,the rate as well as cycling performances of CoSe_(2)/NC are obviously improved.A superior capacity retention of 94.8%is achieved at 2 A·g^(-1)after 2000 *** using Na3V2(PO4)3 cathodes,the pouch full batteries can work steadily at 0.5 C,verifying the application ***_(2)/NC anodes also exhibit impressive performances in LIBs and potassium-ion batteries(PIBs).

关键词： CoSe2 nanobelts ultrathin N-doped carbon layer sodium-ion batteries anode high rate

Production of titanium powder by metallothermic reduction of TiO2 in cold pressed pellets

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Journal of Central South University 2021年第1期28卷 48-57页

作者： ZHENG Hai-yan GUO Yong-chun SHEN feng-man Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819China School of Metallurgy Northeastern UniversityShenyang 110819China

In order to produce low-cost titanium(Ti)with high productivity,fundamental studies on producing metallic Ti from titanium dioxide(TiO2)in the cold pressed pellets were conducted by metallothermic reduction with an indirect contact *** paper focuses on discussing the mechanism of the reduction process and the relationships of RM(a revised reduction index)with reduction temperature,reduction time,and mole ratio of TiO2 to CaCl2(nTiO2/nCaCl2)in the *** results show that metallic Ti was obtained from the reduction of TiO2 in the pellets by calcium(Ca)vapor;pellets were reduced homogenously and Ca vapor diffused into the porous pellets by Knudsen diffusion or the mixing diffusion of molecular diffusion and Knudsen diffusion at 1273 K;RM increased with the increases of temperature and reduction time and was 96.34%when TRedu=1273 K,tRedu=6 h,and nTiO2/nCaCl2=4;the reasonable nTiO2/nCaCl2 value is 3−5 for the pellets with enough strength and high RM.

关键词： titanium dioxide titanium powder metellothermic reduction cold pressed pellet reduction index

陕南宁强地区和安徽巢湖地区早寒武世小壳化石Anabarites之比较

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微体古生物学报 2005年第4期22卷 412-416页

作者：冯曼中国科学院南京地质古生物研究所南京210008

作者对陕南宁强地区和安徽巢湖地区产出的Anabarites从形态和层位上进行了简单的比较。陕南宁强地区Anabarites的层位低于安徽巢湖地区,且前者产出的Anabarites保存较后者的完整,个体普遍较后者小,纵槽较后者浅窄,并多数保存有生长纹。A... 详细信息

作者对陕南宁强地区和安徽巢湖地区产出的Anabarites从形态和层位上进行了简单的比较。陕南宁强地区Anabarites的层位低于安徽巢湖地区,且前者产出的Anabarites保存较后者的完整,个体普遍较后者小,纵槽较后者浅窄,并多数保存有生长纹。Anabarites在巢湖的出现证明了Anabarites延续的时间更长,从梅树村早期一直到沧浪铺期。同时对Anabarites的亲缘性进行了讨论,支持将它们解释成为六射珊瑚亚纲祖先类群的化石代表。

关键词： Anabarites 六射珊瑚亚纲宁强地区陕西巢湖地区安徽

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基于奇异值分解与神经网络的干扰识别

电子与信息学报 2020年第11期42卷 2573-2578页

作者：冯熳王梓楠东南大学信息科学与工程学院南京211189

无线通信中的抗干扰技术对通信的稳定性和安全性都具有重要意义,干扰识别作为抗干扰技术的重要环节一直是研究的热点。该文提出一种基于奇异值分解与神经网络的干扰识别方法,该方法只计算信号矩阵的奇异值即完成特征提取,与传统方法相... 详细信息

无线通信中的抗干扰技术对通信的稳定性和安全性都具有重要意义,干扰识别作为抗干扰技术的重要环节一直是研究的热点。该文提出一种基于奇异值分解与神经网络的干扰识别方法,该方法只计算信号矩阵的奇异值即完成特征提取,与传统方法相比节省了多个谱特性的计算量。仿真结果表明:基于奇异值分解与神经网络的干扰识别方法与传统方法相比在干信比为0 dB左右的条件下识别准确率有10%~25%的提高。

关键词：干扰识别神经网络奇异值分解

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对称的扩展二元相移键控调制解调方法研究

电波科学学报 2016年第6期31卷 1138-1144页

作者：彭珊冯熳东南大学信息科学与工程学院南京210018

为了提高扩展二元相移键控(Extended Binary Phase Shift Keying,EBPSK)系统的抗衰落性能,并简化解调器结构,提出了一种对称的扩展二元相移键控(Symmetric-EBPSK,S-EBPSK)调制方式,以"0"、"1"码元对称的调制波形为主要特征,采用简单有... 详细信息

为了提高扩展二元相移键控(Extended Binary Phase Shift Keying,EBPSK)系统的抗衰落性能,并简化解调器结构,提出了一种对称的扩展二元相移键控(Symmetric-EBPSK,S-EBPSK)调制方式,以"0"、"1"码元对称的调制波形为主要特征,采用简单有效的冲击滤波加比较判决的方法来完成解调,并从理论上推导了S-EBPSK系统的功率谱,及加性高斯白噪声(Additional White Gaussian Noise,AWGN)信道下系统的理论误码率公式.仿真结果表明了所提方案实现简单有效,且无论在AWGN信道还是衰落信道下,均表现出了明显的性能优势.

关键词：对称的扩展二元相移键控调制冲击滤波器比较判决加性高斯白噪声平坦瑞利衰落

Novel Soft Magnetic Co-Based Ternary Co-Er-B Bulk Metallic Glasses

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Acta Metallurgica Sinica(English Letters) 2024年第9期37卷 1633-1642页

作者： Jie Lu Yanhui Li Shuang Ma Wanping Li feng Bao Zhengwang Zhu Qiaoshi Zeng Haifeng Zhang man Yao Wei Zhang Key Laboratory of Materials Modification By Laser Ionand Electron Beams(Ministry of Education)School of Materials Science and EngineeringDalian University of TechnologyDalian116024China School of Metallurgy Northeastern UniversityShenyang110819China Center for High Pressure Science and Technology Advanced Research(HPSTAR) PudongShanghai201203China

In this work,a series of Co-based ternary Co-Er-B bulk metallic glasses(BMGs)with excellent soft magnetic properties and high strength were developed,and the local atomic structure of a typical Co_(71.5)Er_(3.5)B_(25) metallic glass was studied through in situ high-energy synchrotron X-ray diffraction and ab initio molecular dynamics *** results reveal that the BMG samples can be obtained in a composition region of Co_(68.5-71.5)Er_(3.5-4)B_(25-27.5) by a conventional copper-mold casting *** Co-Er-B metallic glasses possess stronger atomic bond strengths and denser local atomic packing structure composed of a higher fraction of icosahedral-like clusters but fewer deformed body-centered cubic and crystal-like polyhedrons,and they exhibit slower atomic diffusion behaviors during solidification,as compared to Co-Y-B *** enhancement in structural stability and the retardation of atomic-ordered diffusion lead to the better glass-forming ability of the Co-Er-B *** smaller magnetic anisotropy energy in the Co-Er-B metallic glasses results in a lower coercivity of less than 1.3 A/*** Co-Er-B BMGs exhibit high-yield strength of 3560-3969 MPa along with distinct plasticity of around 0.50%.

关键词： Co-based bulk metallic glass Glass-forming ability Soft magnetic property Ab initio molecular dynamics simulation Local atomic structure

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译者、技术与世界:翻译技术伦理反思

理论月刊 2020年第5期 153-160页

作者：冯曼中南财经政法大学外国语学院湖北武汉430079

翻译技术的广泛应用极大地改变了翻译职业、翻译产业以及人类跨文化交流的格局,同时也带来了诸多的技术伦理问题。本文借鉴系统理论,分析翻译系统内、外的不同行动主体和利益相关者之间的关系,讨论翻译技术的使用对翻译系统各个组成部... 详细信息

翻译技术的广泛应用极大地改变了翻译职业、翻译产业以及人类跨文化交流的格局,同时也带来了诸多的技术伦理问题。本文借鉴系统理论,分析翻译系统内、外的不同行动主体和利益相关者之间的关系,讨论翻译技术的使用对翻译系统各个组成部分及其相互作用机制的影响,包括:1)对不同主体,尤其是从业人员的影响;2)对翻译系统运行环境的影响,例如对源语和译语语言环境的影响,对存储、生产和传播翻译数据的互联网环境的影响等;3)对主体与环境之间相互作用机制的影响,比如重新平衡翻译需求与供应,质量与效率,技术垄断与市场公平之间的关系。

关键词：译者翻译技术翻译技术伦理系统论翻译系统