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Research in Astronomy and Astrophysics 2020年第7期20卷 112-116页

作者： lue chen Jin-Song Ping Xiang Liu Na Wang Jian-Feng Cao Guang-Ming chen Ming-Yuan Wang Wen-Xiao Li Jian-Hui Zhang Yong-Qiang chen Shi-Lei Yue Song-Tao Han Jing Sun Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Beijing Aerospace Control Center Beijing 100094China Xi’an Satellite Control Center Xi’an 710043China

When the Cassini spacecraft finally plunged into the Saturnian atmosphere on 2017 September15,China’s deep space telescope pointed to Saturn to observe Cassini and study the Saturnian upper neutral *** this first Chinese Saturnian radio science experiment,X band Doppler velocity radio science data between the deep space telescope and the Cassini spacecraft were *** removing Saturnian and solar gravity effects,Earth rotation effect,the remaining Saturnian atmosphere drag information was retrieved in the Cassini final plunge ***’s upper neutral atmosphere mass density profile is approximately estimated based on atmosphere mass density derived principally by real orbit measurement ***’s upper neutral atmosphere mass density from 76000 km to 1400 km is estimated from the orbit measurement data,the mass density results are about from 1.4×10^-15 kg cm^-3 to 2.5×10^-14 kg cm^-3.

关键词： Cassini Saturn Doppler velocity neutral atmosphere mass density

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XPS STUDY OF METAL-METAL INTERACTION IN Co-Rh CLUSTER CATALYST

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Journal of Energy Chemistry 1994年第2期 204-210页

作者： ZHOU Jian-lue CAO Zhao chen Yao-QiangGONG Mao-Chu chen YuDepartment of Chemistry and Aualytical & Testing Center Sichuan University chengdu, Sichuan 610064

The metal-metal interaction in Co-Rh cluster catalyst derived from Co2Rh2(CO)12 was investigated by X-ray photoelectron spectroscopy (XPS). The results show that the Co-Rh interaction in Co2Rh2/γ-AI2O3 catalyst takes place. Rhodium can promote the reduction of cobalt, and cobalt can suppress the agglomeration of the reduced Rh particles when the catalyst is reduced at high temperature.

关键词： Rh AJ CO XPS STUDY OF METAL-METAL INTERACTION IN Co-Rh CLUSTER CATALYST 毗山沙卜 AI Co

INFlueNCE OF VOCl2-ADDITIVE IN Rh CATALYST ON CO HYDROGENATION

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Journal of Energy Chemistry 1995年第1期 52-58页

作者： ZHOU Jian-lue LI Jun chen Yao-QiangGONG Mao-Chu chen YuDepartment, of Chemistry caul Analytical & Testing Center Sichuan University chengdu, Sichuan 610061

The influence of VOCl2 additive in the supported Rh catalysts derived from both Rh2 (CO )4 Cl2 and RhCl3 on CO hydrogenation was investigated. The VOCl2 additive as a promoter can effectively enhance the CO conversion and catalytic selectivity to ethanol. This effect is caused by the interaction of Rh with vanadium promoter. It is found that the Rh centers on which the gem- adsorbed CO could be formed are main active sites. The Rh2(CO)4Cl2 complex is better than the RhCl3 salt as the precursor of the Rh catalyst for the CO hydrogenation to ethanol.

关键词： CO hydrogenation ethanol Rh catalyst vanadium promoter

基于手机信令轨迹点识别的职住地综合决策算法

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中山大学学报（自然科学版）（中英文） 2022年第2期61卷 106-116页

作者：陈略熊宸蔡铭中山大学智能工程学院/广东省智能交通系统重点实验室广东广州510006

由于手机信令存在稀疏性和空间不确定性等特点,给职住地识别带来一定难度;同时,当前的手机信令职住地识别算法对于影响识别结果的关键要素,如时间规则和空间聚合距离等的设置存在依据不足且有效性未知等问题。针对以上难点,提出了一种... 详细信息

由于手机信令存在稀疏性和空间不确定性等特点,给职住地识别带来一定难度;同时,当前的手机信令职住地识别算法对于影响识别结果的关键要素,如时间规则和空间聚合距离等的设置存在依据不足且有效性未知等问题。针对以上难点,提出了一种基于手机信令轨迹点识别的职住地综合决策算法。通过轨迹点识别消除了手机信令的空间不确定性,有效界定了停留区域的时空边界。在停留点识别的基础上,提取各时段中停留点的分布特征,计算时段信息熵,从而度量时段属于职住时段的可能性,对时段赋权值。通过对任意语义停留点到达和离去时间轴离散化,组合语义停留点的停留时段,并通过时段权值反映停留时段特征。以语义停留点的停留时段和停留时长为特征构建职住地综合决策矩阵,识别可能度最大的语义停留点作为职住地,并采用带有移动停留标签的信令数据验证算法的有效性。

关键词：手机信令轨迹点识别信息熵职住地决策矩阵

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STUDY ON OXYGEN ADSORPTION AND CATALYTIC PROPERTIES OF TiO2-BASED CATALYSTS

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Journal of Energy Chemistry 1992年第4期 328-340页

作者： QIN Dai-Yi ZHANG Wei-Dong chen Yu ZHOU Jian-lue chen Yao-Qiang GONG Mao-Chu Analytic and Testing Center,Sichuan University,chengdu,Sichuan 610064

The active oxygen species and active sites for MOC（methane ox-idative coupling）over TiO-based catalysts are studied by ESR ***-gen chemisorption on TiO,La/TiOand Li/TiOwas measured by dynamicESR technique from 295 K to 105 *** process of oxygen adsorption onTiOis *** spectra show that Oions exist largely on TiObut lit-tle on Li/TiOdue to the decrease of surface density of electrons caused bythe substitution of Lifor lattice Tiin Li/*** not detected on *** Oand Oare not likely to be the active species in MOC *** triplet peaks in ESR spectra of Li/TiOare attributed to Ti（Ⅱ）and Ti（Ⅲ）of low coordination numbers,which are active in the presenceof *** of low coordinated Tior Tiare suggested to be responsi-ble for the formation of active oxygen species.

关键词： TiO STUDY ON OXYGEN ADSORPTION AND CATALYTIC PROPERTIES OF TiO2-BASED CATALYSTS

STUDY ON OXIDATIVE COUPLING OF METHANE *** OF ADDITIVES ON TiO2 PHASE TRANSITION AND CATALYTIC PERFORMANCE

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Journal of Energy Chemistry 1994年第4期 408-416页

作者： GONG Mao-Chu XU Zheng-Hong ZHANG Wei-Dong chen Yao-Qiang ZHOU Jian-lue chen YuDepartment of Chemistry and Analytical & Testing Center Sichuan University chengdu,Sichuan 610064

The effect of *** and W added to TiOon catalyticperformance for the oxidation coupling of methane （OCM）and on TiOphasetransition was discussed.X-ray diffraction（XRD）analysis and differentialthermal analysis-thermogravimentric analysis （DTA TGA） were used to studythe relation between TiOphase transition and OCM reaction *** showed that Li-La-Mi-W/TiOsystem exhibited high activity andChydrocarbon *** TiO（A）and rutile TiO（R）exhibiteddifferent OCM activity and ***（A）is favorable for the activationof ***（R）is favorable to the formation of *** the transformation from TiO（A） to TiO（R）and *** has nothing to do with TiOphase *** raises mtehaneconversion,resulting in deep *** and La simultaneously added toTiOexhibit a cooperation.

关键词： TiO IO La Li STUDY ON OXIDATIVE COUPLING OF METHANE I.EFFECT OF ADDITIVES ON TiO2 PHASE TRANSITION AND CATALYTIC PERFORMANCE TGA OCM XRD

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基于工况识别的辊式淬火过程板形预报方法

控制理论与应用 2021年第9期38卷 1407-1413页

作者：陈聪吴敏陈略峰章文杜胜中国地质大学(武汉)自动化学院湖北武汉430074 复杂系统先进控制与智能自动化湖北省重点实验室湖北武汉430074 地球探测智能化技术教育部工程研究中心湖北武汉430074

板形是衡量淬火后钢板质量的重要指标之一,板形的预报对高质量钢板的持续稳定生产具有重要的指导意义.本文提出一种基于工况识别的辊式淬火过程板形预报方法,为淬火生产控制决策提供参考依据.首先对淬火过程进行特性分析;然后采用模糊C... 详细信息

板形是衡量淬火后钢板质量的重要指标之一,板形的预报对高质量钢板的持续稳定生产具有重要的指导意义.本文提出一种基于工况识别的辊式淬火过程板形预报方法,为淬火生产控制决策提供参考依据.首先对淬火过程进行特性分析;然后采用模糊C均值聚类算法对淬火过程进行工况识别,使用支持向量机建立各工况的板形预报模型,并运用改进的粒子群优化算法提高模型的精度;最后利用工业生产数据进行实验,结果验证了本文所提方法的可行性与有效性.

关键词：辊式淬火板形预报工况识别支持向量机粒子群优化算法

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双模型空中目标红外谱段的联合SNCR评估方法

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红外与毫米波学报 2020年第5期39卷 660-666页

作者：张磊陈略朱含露饶鹏北京跟踪与通信技术研究所北京100094 中国科学院智能红外感知重点实验室上海200083 中国科学院上海技术物理研究所上海200083 中国科学院大学北京100049

在天基平台下实现对空中飞机目标的探测,存在距离远、目标信号弱、背景杂波复杂和探测器噪声等不利因素,因此,要获取目标的最强信号,确定在探测过程中的谱段至关重要。为此系统性地建立了飞机羽流的梯形羽流和锥形羽流仿真模型,并提出... 详细信息

在天基平台下实现对空中飞机目标的探测,存在距离远、目标信号弱、背景杂波复杂和探测器噪声等不利因素,因此,要获取目标的最强信号,确定在探测过程中的谱段至关重要。为此系统性地建立了飞机羽流的梯形羽流和锥形羽流仿真模型,并提出了利用信噪比(SNR)和信杂比(SCR)联合的SNCR方法对空中目标的探测谱段进行确定。实验结果表明:针对空中目标,不同目标SNCR值不同,但峰值区域不变,由此方法可以确定探测谱段,最终确定探测的谱段分别为:中波波段为3.7~4.15μm,波段间隔在0.3μm以上;长波波段为8~12μm,波段间隔在0.35μm以上。

关键词：红外探测红外谱段 SNCR 空中目标双模型

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Lunar Satellite Orbit Measurement Based on Visual/Radio Fusion

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Lunar Satellite Orbit Measurement Based on Visual/Radio Fusi...