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Outline of Metallogenic Regularity of Bauxite Deposits in China

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Acta Geologica Sinica(English Edition) 2015年第6期89卷 2072-2084页

作者： GAO Lan LI Jihong WANG Denghong xiong xiaoyun YI Chengwei HAN Meizhi MRL Key Laboratory of Metallogeny and Mineral Assessment Institute of Mineral ResourcesChinese Academy of Geological Science Hubei Land Resources Vocational College China University of Mining & Technology China University of Geosciences

Among the abundant aluminum ore resources in China, bauxite is dominated, which is mainly distributed in 19 provinces and regions, including Shanxi, Henan, Guizhou and Guangxi. The major deposit type of bauxite is paleo-weathering crust sedimentary type, and the other one is the accumulation type. The main metallogenic period is the late Paleozoic Era followed by the Cenozoic Era. The metallogenic tectonic background is characterized by a cratonic environment. This paper summarizes the bauxite metallogenic regularity based on the characteristics of bauxite resources, bauxite deposit type, bauxite metallogenic belt and metallogenic series in China, and 15 bauxite metallogenic belts, 8 bauxite metallogenic series and 7 bauxite ore concentrated areas were identified in the study. This paper also provides a theoretical basis for the evaluation of the potential of bauxite resources.

关键词： bauxite deposit type bauxite metallogenic belt metallogenic series metallogenicregularity

A regularization method in the electromagnetic inverse scattering problem

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Progress in Natural Science:Materials International 2007年第3期17卷 346-351页

作者： xiong xiaoyun, ZHAO Yanwen and NIE Zaiping (School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu 610054, China) School of Electronic Engineering University of Electronic Science and Technology of China Chengdu 610054 China

Based on the normalization of measurement data equations of the inverse scattering problem, a new regularization matrix is proposed. It can eliminate the unfavorable effects caused by difference of distances between field-point or source-point and target region, reduce the loss of useful information in regularization procedure, and decrease condition numbers of the ill-posed problems. Inversion for conductivity distribution of two-dimensional axisymmetric inhomogeneous media is carried out by combing this new regularization method with distorted Born iterative method. Simulation results show that compared with the conventional method, the new regularization method is of better stability, quicker convergence, higher accuracy of inversion and higher resolution.

关键词： inverse scattering regularization distorted Born iterative method.

Sparse representation of global features of visual images in human primary visual cortex: Evidence from fMRI

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Chinese Science Bulletin 2008年第14期53卷 2165-2174页

作者： ZHAO SongNian YAO Li JIN Zhen xiong xiaoyun WU Xia ZOU Qi YAO GuoZheng CAI XiaoHong LIU YiJun State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry Institute of Atmospheric Physics Chinese Academy of Sciences Beijing 100029 China State Key Laboratory of Cognitive Neuroscience and Learning School of Information Science & Technology Beijing Normal University Beijing 100875 China The Magnetic Resonance Imaging Center of Brain's Function Beijing 306 Hospital Chinese People's Liberation Army Beijing 100101 China National Natural Science Foundation of China Beijing 100085 China Department of Computer Science Beijing Jiaotong University Beijing 100044 China College of Information Science Peking University Beijing 100871 China University of Florida McKnight Brain Institute FL 32610 USA

In fMRI experiments on object representation in visual cortex, we designed two types of stimuli: one is the gray face image and its line drawing, and the other is the illusion and its corresponding completed illusion. Both of them have the same global features with different minute details so that the results of fMRI experiments can be compared with each other. The first kind of visual stimuli was used in a block design fMRI experiment, and the second was used in an event-related fMRI experiment. Comparing and analyzing interesting visual cortex activity patterns and blood oxygenation level dependent (BOLD)- fMRI signal, we obtained results to show some invariance of global features of visual images. A plau- sible explanation about the invariant mechanism is related with the cooperation of synchronized re- sponse to the global features of the visual image with a feedback of shape perception from higher cortex to cortex V1, namely the integration of global features and embodiment of sparse representation and distributed population code.

关键词：视皮层视觉成像 fMRI表达生物学

Dry-gel synthesis of hierarchical Ni-La@S-1 catalysts with stabilized Ni-La bimetals nanoparticles for dry reforming of methane

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Nano Research 2024年第11期17卷 10216-10226页

作者： Jin Lv Youhe Wang Junjie Liu Zhichao Zhang Yu Ma Ziyi Zhou Yuqing Ouyang Jie Zhong Xiang Rao Hongman Sun xiaoyun xiong Qingxun Hu Guofeng Zhao Zifeng Yan State Key Laboratory of Heavy Oil Processing College of Chemistry and Chemical Engineering China University of Petroleum Qingdao 266580 China Lanzhou Petrochemical Research Center PetroChina Lanzhou 730060 China Anhui Basic Discipline Research Center for Clean Energy and Catalysis College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China

Dry reforming of methane (DRM) can simultaneously convert two critical greenhouse gases CH4 and CO_(2) into high-value syngas. However, the catalyst deactivation caused by sintering and carbon deposition of Ni-based catalysts at high temperature is a significant problem to be solved for DRM industrialization. Herein, we represent a hierarchical Ni-La@S-1 catalyst for DRM reaction, showing high anti-sintering/coke capacity to improve DRM stability. The La and Ni nitrates were first grinded into the pores of SBA-15 followed by N2-treatment;the sample was then recrystallized by a unique template assisted-uniformly dispersed strategy to obtain the hierarchical Ni-La@S-1 catalyst. This strategy achieves uniform encapsulation of stabilized Ni-La bimetallic nanoparticles in S-1 with high loading, exhibiting high DRM activity and stability at 700 °C and 36,000 mL·g^(−1)·h^(−1). Moreover, La addition promoted CO_(2) to form bidentate carbonate, a critical intermediate in DRM, which greatly ameliorated carbon deposition in Ni catalysts. This work offers promising clue for tailoring the industrial DRM catalysts.

关键词： Ni-La bimetals encapsulation dry gel recrystallization dry reforming of methane stability additive metal

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用于电容层析成像的一步稳定图像重建算法

仪器仪表学报 2007年第11期28卷 1982-1986页

作者：熊小芸唐磊王超电子科技大学电子工程学院成都610054 天津大学电气与自动化工程学院天津300072

本文提出一种基于Landweber迭代的电容层析成像系统一步稳定图像重建算法。该算法通过构建压缩算子可以克服传统Landweber迭代方法存在的半收敛性,得到稳定的重建图像。同时该算法的矩阵算子可以预先计算,然后通过一步矩阵运算实现图像... 详细信息

本文提出一种基于Landweber迭代的电容层析成像系统一步稳定图像重建算法。该算法通过构建压缩算子可以克服传统Landweber迭代方法存在的半收敛性,得到稳定的重建图像。同时该算法的矩阵算子可以预先计算,然后通过一步矩阵运算实现图像重构。实验结果表明,该算法可保证重建图像的实时性和鲁棒性。

关键词：电容层析成像 Landweber迭代半收敛性一步图像重建算法鲁棒性

In Fair Weather Prepare for Foul-In-service integrity inspection of oil/gas pipeline

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Science Foundation in China 2003年第2期11卷 50-52页

作者： Zhang Zhaotian xiong xiaoyun(Department of Information Science, NSFC, Bejing 100085)

Pipeline transportation is one of the major ways for the oil/gas transmission. To ensure the safety of oil/gas transmission pipeline is very important because of its primary role in national economic development and people' s life quality improvement. In China, 20 000km of oil/gas pipelines are at work and 10 000km pipelines are being or will be constructed.

关键词：石油运输管道天然气运输管道中国腐蚀状态缺陷经济损失管道检查设备直径管道修理

康复治疗联合等速肌力训练对全膝关节置换术后患者膝关节功能的影响

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新乡医学院学报 2023年第3期40卷 230-233页

作者：杨曼刘强熊小云王瑞河南省直第三人民医院康复医学科河南郑州450018

目的探讨常规康复治疗联合等速肌力训练对全膝关节置换术(TKA)后患者膝关节疼痛程度、膝关节被动活动度(PROM)、膝关节功能及股四头肌肌力的影响。方法选择2020年1月至2022年1月河南省直第三人民医院收治的99例行TKA的膝骨关节炎患者为... 详细信息

目的探讨常规康复治疗联合等速肌力训练对全膝关节置换术(TKA)后患者膝关节疼痛程度、膝关节被动活动度(PROM)、膝关节功能及股四头肌肌力的影响。方法选择2020年1月至2022年1月河南省直第三人民医院收治的99例行TKA的膝骨关节炎患者为研究对象,采用随机数字表法将患者分为观察组(n=50)和对照组(n=49)。对照组患者行TKA术后给予常规康复治疗,观察组患者行TKA术后给予常规康复治疗联合等速肌力训练,2组患者均连续治疗12周。治疗前及治疗4、12周时,采用视觉模拟评分法(VAS)对2组患者的膝关节疼痛程度进行评估,采用量角器测量膝关节屈伸PROM,采用徒手肌力检查(MMT)评估2组患者的股四头肌肌力,采用膝关节功能评估量表(HSS)评估2组患者的膝关节功能。结果治疗前2组患者的膝关节VAS评分、HSS评分、PROM度数及股四头肌肌力评分比较差异均无统计学意义(P>0.05)。2组患者治疗4周时的膝关节VAS评分、HSS评分、PROM度数及股四头肌肌力评分与治疗前比较差异无统计学意义(P>0.05)。2组患者治疗12周时的膝关节VAS评分显著低于治疗前,HSS评分、PROM度数及股四头肌肌力评分显著高于治疗前(P0.05)。治疗12周时,观察组患者的膝关节VAS评分显著低于对照组,HSS评分、PROM度数、股四头肌肌力评分显著高于对照组(P<0.05)。结论TKA术后常规康复治疗联合等速肌力训练能进一步缓解患者疼痛,增强膝关节功能,促使患者快速恢复。

关键词：全膝关节置换术膝骨关节炎等速肌力训练膝关节功能

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广东部分专家座谈中长期科技发展规划

科技管理研究 2005年第4期25卷 1-2页

作者：蔡齐祥熊晓云李超路平广东省科学学与科技管理研究会广东省科技厅

为配合广东省制定中长期科技发展规划,本着促进广东经济、社会和科技发展的宗旨,我刊特邀请广东有关专家、学者就广东省科技发展战略的有关问题发表看法。本期发表了蔡齐祥谈“比较优势与科技发展”,熊晓云谈“政府在自主创新中的地位... 详细信息

为配合广东省制定中长期科技发展规划,本着促进广东经济、社会和科技发展的宗旨,我刊特邀请广东有关专家、学者就广东省科技发展战略的有关问题发表看法。本期发表了蔡齐祥谈“比较优势与科技发展”,熊晓云谈“政府在自主创新中的地位和作用”,李超谈“提高创新能力是工业化必由之路”,路平谈“为解决广东迫切的经济社会发展问题提供科技支撑”,以供读者讨论、参考。

关键词：中长期科技发展规划广东

胎儿附属物来源间充质干细胞应用于新生儿缺氧缺血性脑病的研究

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儿科药学杂志 2024年第5期30卷 62-64,I0001,I0002页

作者：熊小芸陈娟四川大学华西第二医院出生缺陷与相关妇儿疾病教育部重点实验室成都610041

与成人组织来源的间充质干细胞(mesenchymal stem cells,MSCs)相比,胎儿附属物来源间充质干细胞具有不可忽视的优势,如容易获得、无侵袭性、感染风险低、年龄相关性突变率低等。以脐带间充质干细胞(umbilical cord mesenchymal stem cel... 详细信息

与成人组织来源的间充质干细胞(mesenchymal stem cells,MSCs)相比,胎儿附属物来源间充质干细胞具有不可忽视的优势,如容易获得、无侵袭性、感染风险低、年龄相关性突变率低等。以脐带间充质干细胞(umbilical cord mesenchymal stem cells,UC?MSCs)为代表的胎儿附属来源的MSCs具有来源丰富、容易提取、倍增时间短、免疫原性低、移植后长时间存活等多种优点,可以根据生物医学应用的要求,分化成各种细胞谱系,已广泛应用于临床各系统疾病。新生儿缺氧缺血性脑病(neonatal hypoxic ischemic encephalopathy,HIE)是围生期窒息导致的缺氧缺血性脑损伤(hypoxic ischemic brain damage,HIBD),是新生儿死亡和遗留神经系统后遗症的主要原因。目前的治疗方案除全身支持治疗外,尚无更有效的治疗方式。

关键词：新生儿缺氧缺血性脑病神经系统后遗症胎儿附属物脐带间充质干细胞年龄相关性感染风险新生儿死亡生物医学应用