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| 1 | Frobenius bimodules and flat-dominant dimensions显示文摘We establish relations between Frobenius parts and between flat-dominant dimensions of algebras linked by Frobenius bimodules.This is motivated by the Nakayama conjecture and an approach of MartinezVilla to the Auslander-Reiten conjecture on stable equivalences.We show that the Frobenius parts of Frobenius extensions are again Frobenius extensions.Furthermore,let A and B be finite-dimensional algebras over a field k,and let domdim(_AX)stand for the dominant dimension of an A-module X.If_BM_A is a Frobenius bimodule,then domdim(A)domdim(_BM)and domdim(B)domdim(_AHom_B(M,B)).In particular,if B■A is a left-split(or right-split)Frobenius extension,then domdim(A)=domdim(B).These results are applied to calculate flat-dominant dimensions of a number of algebras:shew group algebras,stably equivalent algebras,trivial extensions and Markov extensions.We also prove that the universal(quantised)enveloping algebras of semisimple Lie algebras are QF-3 rings in the sense of Morita. | Changchang Xi | 2021 | Science China Mathematics2021，64，1： | 6 |
| 2 | The RNA-binding protein ROD1/PTBP3 cotranscriptionally defines AID-loading sites to mediate antibody class switch in mammalian genomes显示文摘 | Juan Chen Zhaokui Cai Meizhu Bai Xiaohua Yu Chao Zhang Changchang Cao Xihao Hu Lei Wang Ruibao Su Di Wang Yingpeng Yao Rong Ye Baidong Hou Yang Yu Shuyang Yu Jinsong Li Yuanchao xue | 2018 | Cell Research2018，28，10： | 4 |
| 3 | Graphene oxide assisted facile hydrothermal synthesis of LiMn_(0.6)Fe_(0.4)PO_4 nanoparticles as cathode material for lithium ion battery显示文摘Assisted by graphene oxide(GO),nano-sized LiMn_(0.6)Fe_(0.4)PO_4 with excellent electrochemical performance was prepared by a facile hydrothermal method as cathode material for lithium ion battery.SEM and TEM images indicate that the particle size of LiMn_(0.6)Fe_(0.4)PO_4(S2)was about 80 nm in diameter.The discharge capacity of LiMn_(0.6)Fe_(0.4)PO_4 nanoparticles was 140.3 mAh-g^1 in the first cycle.It showed that graphene oxide was able to restrict the growth of LiMn_(0.6)Fe_(0.4)PO_4 and it in situ reduction of GO could improve the electrical conductivity of LiMn_(0.6)Fe_(0.4)PO_4 material. | Changchang Xu Li Li Fangyuan Qiu Cuihua An Yanan Xu Ying Wang Yijing Wang Lifang Jiao Huatang Yuan | 2014 | Journal of Energy Chemistry2014，23，3： | 3 |
| 4 | Construction of vesicle CdSe nano-semiconductors photocatalysts with improved photocatalytic activity:Enhanced photo induced carriers separation efficiency and mechanism insight显示文摘Visible-light-driven photocatalysis as a green technology has attracted a lot of attention due to its potential applications in environmental remediation. Vesicle Cd Se nano-semiconductor photocatalyst are successfully prepared by a gas template method and characterized by a variety of methods. The vesicle Cd Se nano-semiconductors display enhanced photocatalytic performance for the degradation of tetracycline hydrochloride, the photodegradation rate of78.824% was achieved by vesicle Cd Se, which exhibited an increase of 31.779% compared to granular Cd Se. Such an exceptional photocatalytic capability can be attributed to the unique structure of the vesicle Cd Se nano-semiconductor with enhanced light absorption ability and excellent carrier transport capability. Meanwhile, the large surface area of the vesicle Cd Se nano-semiconductor can increase the contact probability between catalyst and target and provide more surface-active centers. The photocatalytic mechanisms are analyzed by active species quenching. It indicates that h+and UO_2^-are the main active species which play a major role in catalyzing environmental toxic pollutants. Simultaneously, the vesicle Cd Se nano-semiconductor had high efficiency and stability. | Jiangsu Wen Changchang Ma Pengwei Huo Xinlin Liu Maobin Wei Yang Liu Xin Yao Zhongfei Ma Yongsheng Yan | 2017 | Journal of Environmental Sciences2017，29，10： | 3 |
| 5 | 绿色投资的发展趋势和决定因素显示文摘本文填补了可再生能源在宏观经济文献中的空白,提出了绿色投资的定义,并分析了10年间在35个发达和新兴国家中这种投资的发展趋势和决定因素。我们运用一个新的多国历史数据集,发现绿色投资已成为能源部门的主要驱动力,其快速增长目前主要由中国所带动。本文的计量经济结果表明,绿色投资的发展是由经济增长。 | Luc Eyraud Abdoul Wane Changchang Zhang Benedict Clements 孙力铮 王诠荃 | 2012 | 金融发展评论2012，，5： | 3 |
| 6 | ON Δ-GOOD MODULE CATEGORIES OF QUASI-HEREDITARY ALGEBRAS显示文摘ONΔ┐GOODMODULECATEGORIESOFQUASI┐HEREDITARYALGEBRAS**DENGBANGMING*XICHANGCHANG*ManuscriptreceivedJune12,1995.RevisedMay3,1996.... | DENG BANGMING * XI CHANGCHANG * | 1997 | Chinese Annals of Mathematics,Series B1997，18，4： | 2 |
| 7 | Analysis of the Stability and Mechanical Characteristics of the Jointed Surrounding Rock and Lining Structure of a Deeply Buried Hydraulic Tunnel显示文摘On-site monitoring and numerical simulation have been combined to analyze the stability of the jointed surrounding rock and the stress inside the lining structure of a sample deeply buried hydraulic tunnel.We show that the deformation around the tunnel was mainly concentrated in the range 51.37 mm∼66.73 mm,the tunnel circumference was dominated by shear failure,and the maximum plastic zone was about 3.90 m.When the shotcrete treatment was performed immediately after the excavation,the deformation of the surrounding rock was reduced by 58.94%∼76.31%,and the extension of the plastic zone was relatively limited,thereby leading to improvements in terms of the stability of surrounding rock.When the support was provided at different time points,the stress of the surrounding rock in the shallow part of the tunnel was improved everywhere.In the tunnel section with high ground stress and joint development,when 10 cm steel fiber concrete spray layer and 40 cm C25 concrete secondary lining were used,the maximum tensile stress on the lining structure was 0.89 MPa,i.e.,it was less than the tensile strength of concrete,which indicates that the internal force of the lining can meet the overall requirements. | Changchang Li Zuguo Mo Haibo Jiang Fengchun Yang | 2022 | Fluid Dynamics & Materials Processing2022，18，1： | 2 |
| 8 | Risk Index Prediction of Civil Aviation Based on Deep Neural Network显示文摘Safety is the foundation of sustainable development in civil aviation.Although catastrophic accidents are rare,indicators of potential incidents and unsafe events frequently materialize.Therefore,a history of unsafe data are considered in predicting safety risks.A deep learning method is adopted for extracting reactions in safety risks.The deep neural network(DNN)model for safety risk prediction is shown to extract complex data characteristics better than a shallow network model.Using extended unsafe data and monthly risk indices,hidden layers and iterations are determined.The effectiveness of DNN is also revealed in comparison with the traditional neural network.Through early risk detection using the method in the paper,airlines and the government can mitigate potential risk and take proactive measures to improve civil aviation safety. | NI Xiaomei WANG Huawei CHE Changchang | 2019 | Transactions of Nanjing University of Aeronautics and Astronautics2019，36，2： | 2 |
| 9 | Distribution characteristics of soil organic carbon and nitrogen in farmland and adjacent natural grassland in Tibet显示文摘Land-use significantly affects soil organic carbon(SOC)and nitrogen cycling,eventually leading to global climate change.The cold and arid climate conditions in Tibet are not conducive to transformation of SOC and nitrogen.Hence,research on SOC and nitrogen distribution under different land-use patterns in Tibet is an important basis to assess the soil carbon and nitrogen potential in the land ecosystem of this area.This study aims to explain the effects of two land-use patterns,namely,farmland and grassland,on SOC and nitrogen contents in the cold regions of Tibet.This study also seeks to provide a scientific basis for the agricultural and grass production system.To achieve these goals,the changing features of total nitrogen(TN),mineralized nitrogen(nitrate nitrogen(NN)and ammonium nitrogen(AN)),and SOC were analyzed in different soil depths(0-5,5-10,10-20,20-30,30-40,and 40-50 cm)in farmland and adjacent natural grassland.The differences in carbon and nitrogen contents between the farmland and grassland of the main agricultural area of Tibet were determined through combined field survey and lab analysis.Results showed that the contents of SOC,TN and mineralized nitrogen in the grassland and farmland decreased with increasing soil depth mainly in the surface with depth of 0-20 cm.The effects of the different land-use patterns on the contents of SOC and TN were primarily evident in the 0-10 cm surface layer.The contents of SOC and TN in the farmland were significantly lower than those in the grassland,with mean reduction by 28.36%for SOC and 20.76%for TN.When the soil layer is deeper than 10 cm,the contents of SOC and TN in the farmland were greater than those in the grassland.This finding indicated that the transformation from grassland to farmland in Tibet mainly influenced the SOC and TN in the 0-10 cm surface layer.Moreover,the results showed that the increment of carbon in the deep soil layers of the farmland partially offsets the SOC loss from the surface because of cultivation.The ratio of mineralized nitrogen to TN in the farmland was significantly higher than that in the grassland(p<0.001).Mineralized nitrogen in the farmland mainly existed in the form of NN,with a mean content of 2.7%in the 0-50 cm surface layer.By contrast,the difference in the ratio of AN to TN between the grassland and farmland was not significant.The results revealed that the land-use pattern in extremely cold agricultural areas mainly affects the contents of SOC and nitrogen in the 0-10 cm surface layer,and agricultural management is beneficial in increasing the SOC content in the deeper layers. | Liu Heman Cao Lihua Xu Changchang Yang Hong Li Baoguo | 2016 | International Journal of Agricultural and Biological Engineering2016，9，1： | 2 |
| 10 | Hepatocellular carcinoma-associated fibroblasts trigger NK cell dysfunction via PGE2 and IDO显示文摘 | Tuanjie Li Yang Yang Xuefeng Hua Guoying Wang Wei Liu Changchang Jia Yan Tai Qi Zhang Guihua Chen | 2011 | Cancer Letters2011，，2： | 2 |
| 11 | Recent research progress of bimetallic phosphides-based nanomaterials as cocatalyst for photocatalytic hydrogen evolution显示文摘Hydrogen energy(H_(2)) has been considered as the most possible consummate candidates for replacing the traditional fossil fuels because of its higher combustion heat value and lower environmental pollution.Photocatalytic hydrogen evolution(PHE) from water splitting based on semiconductors is a promising technology towards converting solar energy into sustainable H_(2)fuel evolution. Developing high-activity and abundant source semiconductor materials is particularly important to realize highly efficient hydrogen evolution as for photocatalysis technology. However, unmodified pristine photocatalysts are often unable to overcome the weakness of low performance due to their limitations. In recent years, transition metal phosphides(TMPs) were used as valid co-catalysts to replace the classic precious metal materials in the process of photocatalytic reaction owing to their lower cost and higher combustion heat value.What is more, bimetallic phosphides have been also caused widespread concern in H_(2)evolution reaction owing to its much lower overpotential, more superior conductivity, and weaker charge carriers transfer impedance in comparison to those of single metal phosphides. In this minireview, we concluded the latest developments of bimetallic phosphides for a series of photocatalytic reactions. Firstly, we briefly summarize the present loading methods of bimetallic phosphides(BMPs) anchored on the photocatalyst. After that, the H;evolution efficiency based on BMPs as cocatalyst is also studied in detail. Besides, the application of BMPs-based host photocatalyst for H_(2)evolution under dye sensitization effect has also been discussed. At last, the current development prospects and prospective challenges in many ways of BMPs are proposed. We sincerely hope this minireview has certain reference value for great developments of BMPs in the future research. | Chunmei Li Daqiang Zhu Shasha Cheng Yan Zuo Yun Wang Changchang Ma Hongjun Dong | 2022 | Chinese Chemical Letters2022，33，3： | 2 |
| 12 | Synthesis of Size‐Controlled Ag@Co@Ni/Graphene Core–Shell Nanoparticles for the Catalytic Hydrolysis of Ammonia Borane显示文摘 | Fangyuan Qiu Li Li Guang Liu Changchang Xu Cuihua An Yanan Xu Ying Wang Yanan Huang Chengcheng Chen Yijing Wang Lifang Jiao Huatang Yuan | 2014 | Chem Asian J2014，，2： | 1 |
| 13 | A characterization of the tilting pair显示文摘 | WEI Jiaqun XI Changchang | 2007 | J Algebra2007，317，： | 1 |
| 14 | Strong Symmetry Defined by Twisting Modules, Applied to Quasi-Hereditary Algebras with Triangular Decomposition and Vanishing Radical Cube显示文摘 | Steffen K?nig Changchang Xi | 1998 | Communications in Mathematical Physics1998，，2： | 1 |
| 15 | Auslander-Reiten correspondence for tilting pairs显示文摘 | WEI Jiaqun XI Changchang | 2008 | J Pure Applied Algebra2008，212，： | 1 |
| 16 | Quasi-hereditary algebras which are twisted double incidence algebras of posets 显示文摘 | DENG Bangming XI Changchang | 1995 | Contri Alg Geom1995，36，： | 1 |
| 17 | Quasi-hereditary algebras which are dual extensions of algebras显示文摘 | DENG Bangming XI Changchang | 1994 | Comm Alg1994，22，： | 1 |
| 18 | Vapor phase reactions ofacetaldehyde over type X zeolites 显示文摘 | YUAN Changchang AN Nan Ko | 2000 | Applied Catalysis A2000，190，： | 1 |
| 19 | Strong Symmetry Defined by Twisting Modules, Applied to Quasi-Hereditary Algebras with Triangular Decomposition and Vanishing Radical Cube显示文摘 | Steffen K?nig Changchang Xi | 1998 | Communications in Mathematical Physics1998，，2： | 1 |
| 20 | Intelligent nanogels with self-adaptive responsiveness for improved tumor drug delivery and augmented chemotherapy显示文摘For cancer nanomedicine,the main goal is to deliver therapeutic agents effectively to solid tumors.Here,we report the unique design of self-adaptive ultrafast charge-reversible chitosan-polypyrrole nanogels(CH-PPy NGs)for enhanced tumor delivery and augmented chemotherapy.CH was first grafted with PPy to form CH-PPy polymers that were used to form CH-PPy NGs through glutaraldehyde cross-linking via a miniemulsion method.The CH-PPy NGs could be finely treated with an alkaline solution to generate ultrafast charge-reversible CH-PPy-OH-4 NGs(R-NGs)with a negative charge at a physiological pH and a positive charge at a slightly acidic pH.The R-NGs display good cytocompatibility,excellent protein resistance,and high doxorubicin(DOX)loading efficiency.Encouragingly,the prepared R-NGs/DOX have prolonged blood circulation time,enhanced tumor accumulation,penetration and tumor cell uptake due to their self-adaptive charge switching to be positively charged,and responsive drug delivery for augmented chemotherapy of ovarian carcinoma in vivo.Notably,the tumor accumulation of R-NGs/DOX(around 4.7%)is much higher than the average tumor accumulation of other nanocarriers(less than 1%)reported elsewhere.The developed self-adaptive PPy-grafted CH NGs represent one of the advanced designs of nanomedicine that could be used for augmented antitumor therapy with low side effects. | Xin Li Helin Li Changchang Zhang Andrij Pich Lingxi Xing Xiangyang Shi | 2021 | Bioactive Materials2021，6，10： | 1 |
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