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A New Characterization of p-Smoothable Banach Spaces

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Acta Mathematica Sinica,English Series 2011年第5期27卷 1005-1010页

作者： yan bo ren You Liang HOU School of Mathematics and Statistics He 'nan University of Science and Technology Luoyang 471003 P. R. China School of Mathematics and Statistics Wuhan University Wuhan 430072 P. R. China

In this paper an atomic decomposition theorem for Banach-space-valued weak Hardy regular martingale space wpHα^s（X） is given. As an application, p-smoothable Banach spaces are characterized in terms of bounded sublinear operators defined on Banach-space-valued weak Hardy regular martingale space wpHa^s（X）. Keywords Martingale, weak Hardy space, atomic decomposition, p-smoothable Banach space

关键词： Martingale weak Hardy space atomic decomposition p-smoothable Banach space

Greedy feature replacement for online value function approximation

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Journal of Zhejiang University-Science C(Computers and Electronics) 2014年第3期15卷 223-231页

作者： Feng-fei ZHAO Zheng QIN Zhuo SHAO Jun FANG bo-yan ren Department of Computer Science and Technology Tsinghua University School of Software Tsinghua University Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics Tsinghua University

Reinforcement learning(RL) in real-world problems requires function approximations that depend on selecting the appropriate feature representations. Representational expansion techniques can make linear approximators represent value functions more effectively; however, most of these techniques function well only for low dimensional problems. In this paper, we present the greedy feature replacement(GFR), a novel online expansion technique, for value-based RL algorithms that use binary features. Given a simple initial representation, the feature representation is expanded incrementally. New feature dependencies are added automatically to the current representation and conjunctive features are used to replace current features greedily. The virtual temporal difference(TD) error is recorded for each conjunctive feature to judge whether the replacement can improve the approximation. Correctness guarantees and computational complexity analysis are provided for GFR. Experimental results in two domains show that GFR achieves much faster learning and has the capability to handle large-scale problems.

关键词： Reinforcement learning Function approximation Feature dependency Online expansion Feature replacement

Herb-partitioned moxibustion alleviates colon injuries in ulcerative colitis rats

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World Journal of Gastroenterology 2018年第30期24卷 3384-3397页

作者： Dan Zhang yan-bo ren Kai Wei Jue Hong yan-Ting yang Li-Jie Wu Ji Zhang Zheng Shi Huan-Gan Wu Xiao-Peng Ma Laboratory of Acupuncture-moxibustion and Immunology Shanghai Research Institute of Acupuncture and MeridianShanghai University of Traditional Chinese Medicine Department of Integrated Traditional Chinese Medicine and Western Medicine North Branch of Huashan HospitalFudan University Key Laboratory of Systems Biomedicine (Ministry of Education) Shanghai Center for Systems BiomedicineShanghai Jiao Tong University Yueyang Clinical Medicine School Shanghai University of Traditional Chinese Medicine

AIM To observe the effect of herb-partitioned moxibustion(HPM) on expression of colonic cytokines in ulcerative colitis(UC) *** A UC rat model was established by protein immunization in combination with topical chemical *** in the HPM group(n = 8) received HPM at bilateral Tianshu(ST25) *** gross injury and pathological scores of the colon were *** expression profile of colonic cytokines was assayed using the protein microarray *** differential cytokines were selected and verified by *** corresponding Uni Prot Accessions of the differentially expressed cytokines were retrieved in the Uni Prot *** pathways involved were analyzed with the help of the KEGG PATHWAY *** DAVID database was used for functional cluster and pathway *** HPM improved colon injuries in UC rats,manifested by accelerated repair of ulcers and alleviation of inflammation,and the gross injury and pathological scores both significantly decreased(P 1.3 or rentially expressed colonic cytokines in the HPM group compared with the model group,and expression of 20 differed significantly(P rentially expressed cytokines [β-catenin,interleukin-1 receptor 6(IL-1 R6),IL-1β,B7-1,nerve growth factor receptor,AMP-activated protein kinase-α1,neuropilin-2,orexin A,adipocyte differentiation-related protein,IL-2,Fas and Fas L] were up-regulated in the model group(n = 3,compared with the normal group) but downregulated in the HPM group(n = 3,compared with the model group).Functional cluster analysis showed that the differentially expressed colonic cytokines in the HPM group regulated apoptosis and protein *** pathway analysis showed that 52 down-regulated and 7 up-regulated differentially expressed colonic cytokines in the HPM group had *** pathw

关键词： Cytokine expression profile Ulcerative colitis Protein microarray Rats Herb-partitioned moxibustion

A Confocal Technique Applicable to Studies of Cellular pH-related Signaling in Plants

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Journal of Integrative Plant Biology 2008年第6期50卷 682-690页

作者： Bing-Bing Lit Zhi-Hui Gao Xiao-yan Zhou Hui-bo ren Min Xie Yi-Juan Fan Jian-Fang Hu Wen-Suo Jia College of Agronomy and Biotechnology China Agricultural University Beijing 100094 China

pH may act as a crucial signal in both animal and plant cells. It is very difficult to monitor pH signals and this has largely hindered progress in the investigation of pH signaling, particulady systematic pH signaling. Here, we report the development of a confocal technique to monitor leaf apoplastic pH in intact plants, which is particularly suitable for the studies on root to shoot signaling. A variety of different pH indicators and plant species were tested. It was found that different pH indicators, for example, 2＇,7＇-Bis-（2-carboxyethyl）-5-（and-6）-carboxyfluoresce （BCECF）, SNARF-4F 5-（and-6）- carboxylic acid （SNARF） and DM-NERF （NERF）, were of different properties, and to successfully monitor pH at a sub-cellular level, the comparability between the pH indicator and plant species must be involved according to their suitable pH range and loading characteristics. The loading characteristics of different pH indicators differ with different plant species, cell types and their developing stages. No matter what methods were adopted, BCECF and SNARF could not be loaded specifically in the leaf apoplast in sunflower, tomato, and Comelina communis L. In contrast, regardless of the methods adopted, NERF could be loaded efficiently and specifically in the leaf apoplast in C. communis, but not in other plants. In C. communis, the determination coefficient for in vitro and in situ calibration of NERF was very high, which was respectively 0.9951 and 0.991 6, and therefore, the adoption of NERF together with C. communis could construct an ideal experimental system that is suitable for the investigation of pH systematic signaling. Ratio image analysis demonstrated that the leaf apoplastic pH was about 5.5 in non-stressed conditions, and water deficit could trigger an increase in pH by about half a pH unit, which is the first evidence to directly indicate that pH is able to act as a systematic signal under water deficit conditions.

关键词： confocal microscope pH signaling water deficit.

Real Interpolation between Martingale Hardy and BMO Spaces

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数学学报(中文版) 2013年第2期 290-290页

作者： yan bo ren Tie Xin GUO

In this paper,we consider the real interpolation with a function parameter between martingale Hardy and BMO *** interpolation theorem for martingale Hardy and BMO spaces is *** an application,real interpolation betwee...

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Effect of β-sodium aescinate on hypoxia-inducible factor-1α expression in rat brain cortex after cardiopulmonary resuscitation

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World Journal of Emergency Medicine 2013年第1期4卷 63-68页

作者： Jian Kang Ping Gong yan-bo ren Dong-na Gao Qiong-lei Ding Department of Emergency Medicine First Hospital Affiliated to Dalian Medical University

BACKGROUND： This study was undertaken to investigate the expression of hypoxia-inducible factor-1α （HIF-1α） in rat cerebral cortex and the effects of β-sodium aescinate （SA） administration after return of spontaneous circulation （ROSC）.METHODS： Sixty rats were divided into three groups： SA group, injected intraperitoneally with SA instantly after ROSC; control group, injected intraperitoneally with normal saline; and sham-operated group, without cardiac arrest or SA. The cardiac arrest model was established using asphyxiation and intravenous potassium chloride. Blood was sampled 1, 6, 12, and 24 hours after ROSC. Protein and mRNA levels of HIF-1α, VEGF and EPO were detected in the cerebral cortex by immunohistochemistry and real-time RT-PCR; serum levels of NSE and S100β were determined by enzyme-linked immunosorbent ***： Serum S100β and NSE were signi？ cantly increased in the control group versus the sham-operated group 1, 6, 12 and 24 hours after ROSC （P〈0.05）. Protein and mRNA levels of HIF-1α, VEGF and EPO were signi？ cantly increased in the control rats （P〈0.05）. Serum NSE and S100β were significantly decreased in the SA group versus the control group 1, 6, 12 and 24 hours after ROSC （P〈0.05）. Protein and mRNA levels of HIF-1α, VEGF and EPO were signi？ cantly increased in the SA group （P〈0.05）.CONCLUSIONS： The expression of HIF-1α is increased in rat cerebral cortex after ROSC, and SA up-regulates the expression of HIF-1α. The up-regulation of HIF-1α improves the resistance of the cortex to ischemia and hypoxia and contributes to neuroprotection, possibly because of up-regulation of EPO and VEGF expression.

关键词： Cardiopulmonary resuscitation HIF-1α Erythropoietin Vascular endothelialgrowth factor β-sodium aescinate Neuroprotection growth factor β-sodium aescinate Neuroprotection

boosting charge extraction and efficiency of inverted perovskite solar cells through coordinating group modification at the buffer layer/cathode interface

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Nano Research 2025年第1期18卷 415-423页

作者： Zhiqing Liang Ziqiu ren Ziyu Wang Nan yan Ling Li bo Zhang yanlin Song College of Chemistry Zhengzhou UniversityZhengzhou 450052China Key Laboratory of Applied Surface and Colloid Chemistry Ministry of Education Shaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy Technology School of Materials Science and EngineeringShaanxi Normal UniversityXi’an 710119China Key Laboratory of Green Printing Institute of ChemistryChinese Academy of Sciences(ICCAS)Beijing Engineering Research Center of Nanomaterials for Green Printing TechnologyNational Laboratory for Molecular Sciences(BNLMS)Beijing 100190China

In inverted perovskite solar cells (PSCs),effective modification of the interface between the metalcathode and electron transport layer (ETL) is crucial forachieving high performance and stability. Herein, sulfonatedbathocuproine, commonly known as disodium bathocuproinedisulfonate (BCDS), was employed as a cathode buffer layerto address the interfacial issues at the [6,6]-phenyl-C61-butyricacid methyl ester (PCBM)/Ag interface. BCDS possesses theability to form coordinate bonds with Ag electrodes. Theutilization of the BCDS buffer layer enhanced the chargeextraction capability at the cathode interface whilesimultaneously achieving interfacial defect passivation,improving interfacial contact and increasing the built-in electricfield. Consequently, a power conversion efficiency (PCE) of25.06% was achieved. Furthermore, owing to the excellent filmforminguniformity of BCDS on PCBM, the stability of thedevice was also improved. After storage in dry air for morethan 2000 h, the device maintained 96% of its initial efficiency. This work underscores the remarkable potential of tailoringcoordination groups to enhance charge extraction efficiency at the ETL-cathode interface, unveiling a promising newfrontier in buffer layer development and performance optimization strategies for PSCs.

关键词： perovskite solar cells buffer layer bathocuproine disulfonate coordination group modification electron transport layer(ETL)-cathode interface

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量子点荧光材料在照明和显示领域的研究进展

材料导报 2016年第15期30卷 30-38页

作者：侯艳任博秦璐肖金龙中国科学院半导体研究所北京100083

由于量子点具有发光波长尺寸可调谐、发光峰窄、发光效率高和热稳定性等特点,近年来作为一种新型发光材料受到了越来越多的关注。它们不仅可以在电激发下实现自主发光,还可以在光激发下实现光转换,因此在照明和显示领域具有很广阔的应... 详细信息

由于量子点具有发光波长尺寸可调谐、发光峰窄、发光效率高和热稳定性等特点,近年来作为一种新型发光材料受到了越来越多的关注。它们不仅可以在电激发下实现自主发光,还可以在光激发下实现光转换,因此在照明和显示领域具有很广阔的应用前景。总结了用量子点荧光材料制备白光发光二极管的6种方法及其研究进展,还介绍了它们在液晶显示领域的应用,最后讨论了目前量子点荧光粉存在的问题和今后的研究方向。

关键词：量子点荧光材料白光发光二极管

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耐热球铁深入煤斗铸件浇口冒口工艺设计

铸造技术 2006年第12期27卷 1279-1281页

作者：连炜鄢仁柏魏兵西安工业大学机电工程学院陕西西安710032 福建机器厂福建帮州350009 西安理工大学材料学院陕西西安710048

箱体类耐热球铁深入煤斗铸件,轮廓尺寸1 920 mm×890 mm×330 mm,璧厚25 mm,材质RQTSi-5.5,重740 kg。粘土砂干型,内腔顶面分型,铸件主要在下型,浇注系统座在芯头上。采用大孔出流理论进行充填设计:1只直浇道φ69 mm,位于横浇道中间,横... 详细信息

箱体类耐热球铁深入煤斗铸件,轮廓尺寸1 920 mm×890 mm×330 mm,璧厚25 mm,材质RQTSi-5.5,重740 kg。粘土砂干型,内腔顶面分型,铸件主要在下型,浇注系统座在芯头上。采用大孔出流理论进行充填设计:1只直浇道φ69 mm,位于横浇道中间,横浇道截面44 mm/54 mm×56 mm,6只内浇道110 mm/130 mm×6 mm。在浇注系统对面设2只溢流补缩耳冒口。用均衡凝固收缩模数法设计计算冒口,直径70 mm,高100 mm。批量生产,生产结果,没有工艺缺陷,生产稳定可靠,工艺出品率93.7%。证明采用大孔出流设计浇注系统,均衡凝固收缩模数法设计耐热球铁箱体类铸件的补缩系统是可靠的。

关键词：箱体铸件耐热球铁浇冒口系统设计