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Inductive Relation Prediction by Disentangled Subgraph Structure

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Tsinghua Science and Technology 2024年第5期29卷 1566-1579页

作者： Guiduo Duan rui Guo Wenlong luo Guangchun luo Tianxi Huang Laboratory of Intelligent Collaborative Computing University of Electronic Science and Technology of ChinaChengdu 611731Chinaand also with Trusted Cloud Computing and Big Data Key Laboratory of Sichuan ProvinceChengdu 611731China School of Computer Science and Engineering University of Electronic Science and Technology of ChinaChengdu 611731China Hangzhou NetEase Cloud Music Technology Co. Ltd.Hangzhou 310052China Department of Fundamental Courses Chengdu Textile CollegeChengdu 611700China

Currently,most existing inductive relation prediction approaches are based on subgraph structures,with subgraph features extracted using graph neural networks to predict ***,subgraphs may contain disconnected regions,which usually represent different semantic *** not all semantic information about the regions is helpful in relation prediction,we propose a relation prediction model based on a disentangled subgraph structure and implement a feature updating approach based on relevant semantic *** indirectly achieve the disentangled subgraph structure from a semantic perspective,the mapping of entity features into different semantic spaces and the aggregation of related semantics on each semantic space are *** disentangled model can focus on features having higher semantic relevance in the prediction,thus addressing a problem with existing approaches,which ignore the semantic differences in different subgraph ***,using a gated recurrent neural network,this model enhances the features of entities by sorting them by distance and extracting the path information in the ***,it is shown that when there are numerous disconnected regions in the subgraph,our model outperforms existing mainstream models in terms of both Area Under the Curve-Precision-Recall(AUC-PR)and Hits@*** prove that semantic differences in the knowledge graph can be effectively distinguished and verify the effectiveness of this method.

关键词： disentangled subgraph structure knowledge graph completion Gated Recurrent Unit(GRU) feature updating

Dependence of Amorphous Formation Ability on Intrinsic Parameters in Dy-Gd-Co-Al Alloys

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Journal of Materials Science & Technology 2009年第5期25卷 665-668页

作者： Lin luo rui Tian Xueshan Xiao Institute of Materials Shanghai University Shanghai 200072 China

A series of Dy（Gd）-based bulk amorphous alloy rods were prepared by water-cooled copper mold method. Thermal stability and structure of Dy-Gd-Co-Al alloys were investigated by differential scanning calorimetry and X-ray diffraction, respectively. The results show that the Dy-Gd-Co-Al alloys have good glass-formation ability, and the Dy31Gd25Co20Al24 alloy can be readily cast into full glassy rods up to 5 mm in diameter. The glass-forming ability of multicomponent alloys was greatly dependent on their chemical interaction and the equivalent bond parameters among atoms such as equivalent electronegativity difference, equivalent atomic size parameter. The Dy （Gd）-based bulk amorphous alloys could be expected as potential functional materials.

关键词： Dy(Gd)-based Glass forming ability Intrinsic parameters

Metabolism of benzo[a]pyrene in peroxynitrite/Fe(III) porphyrin system

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Journal of Environmental Sciences 2007年第4期19卷 385-386页

作者： luo Yun-jing LIN Tai-feng ZHANG Shu-fen liu rui ZHONG Ru-gang College of Life Science and Bioengineering Beijing University of Technology Beijing 100022 China.

The peroxynitrite/porphyrin biomimetic system was established to investigate the effects of peroxynitrite on benzo[a]pyrene （B[a]P） metabolism. Three model systems consisting of different iron porphyrins were compared, and the results showed that the peroxynitdte/T（p-Cl）PPFeCl system was the highest catalytic efficiency in the metabolism of B [a]P. We analyzed the B [a]P metabolites produced from this system by RP-HPLC method and firstly identified the formation of nitrobenzo[a]pyrenes which are the special metabolites of B [a]P induced by peroxynitrite.

关键词： peroxynitrite benzo[a]pyrene metabolism nitrobenzo[a]pyrenes

Boron doping-induced interconnected assembly approach for mesoporous silicon oxycarbide architecture

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National Science Review 2021年第6期8卷 169-179页

作者： Guanjia Zhu rui Guo Wei luo Hua Kun liu Wan Jiang Shi Xue Dou Jianping Yang State Key Laboratory for Modification of Chemical Fibers and Polymer Materials International Joint Laboratory for Advanced Fiber and Low-dimension MaterialsCollege of Materials Science and EngineeringDonghua University Institute for Superconducting & Electronic Materials Australian Institute of Innovative MaterialsUniversity of Wollongong

Despite desirable progress in various assembly tactics, the main drawback associated with current assemblies is the weak interparticle connections limited by their assembling protocols. Herein, we report a novel boron doping-induced interconnection-assembly approach for fabricating an unprecedented assembly of mesoporous silicon oxycarbide nanospheres, which are derived from periodic mesoporous organosilicas. The as-prepared architecture is composed of interconnected, strongly coupled nanospheres with coarse surfaces. Significantly, through delicate analysis of the as-formed boron doped species, a novel melt-etching and nucleation-growth mechanism is proposed, which offers a new horizon for the developing interconnected assembling technique. Furthermore, such unique strategy shows precise controllability and versatility, endowing the architecture with tunable interconnection size, surface roughness and switchable primary nanoparticles. Impressively, this interconnected assembly along with tunable surface roughness enables intrinsically dual(both structural and interfacial) stable characteristics, achieving extraordinary long-term cycle life when used as a lithium-ion battery anode.

关键词： mesoporous materials boron doping interconnected assembly energy storage

Rational Design of Thermosensitive Hydrogel to Deliver Nanocrystals with Intranasal Administration for Brain Targeting in Parkinson’s Disease

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Research 2021年第1期2021卷 1046-1058页

作者： Yun Tan Yao liu Yujing liu rui Ma Jingshan luo Huijie Hong Xiaojia Chen Shengpeng Wang Chuntai liu Yi Zhang Tongkai Chen Hunan Provincial Key Laboratory of Micro&Nano Materials Interface Science College of Chemistry and Chemical EngineeringCentral South UniversityChangsha 410083China Science and Technology Innovation Center Guangzhou University of Chinese MedicineGuangzhou 510405China State Key Laboratory of Quality Research in Chinese Medicine Institute of Chinese Medical SciencesUniversity of MacaoMacao 999078China Key Laboratory of Materials Processing and Mold Ministry of EducationZhengzhou UniversityZhengzhou 450002China

Mitochondrial dysfunction is commonly detected in individuals suffering from Parkinson’s disease(PD),presenting within the form of excessive reactive oxygen species(ROS)generation as well as energy *** this dysfunction within brain tissues is an effective approach to treat PD,while unluckily,the blood-brain barrier(BBB)substantially impedes intracerebral drug *** an effort to improve the delivery of efficacious therapeutic drugs to the brain,a drug delivery platform hydrogel(MAG-NCs@Gel)was designed by complexing magnolol(MAG)-nanocrystals(MAG-NCs)into the noninvasive thermosensitive poly(Nisopropylacrylamide)(PNIPAM)with *** as-prepared MAG-NCs@Gel exhibited obvious improvements in drug solubility,the duration of residence with the nasal cavity,and the efficiency of brain targeting,*** all,continuous intranasal MAG-NCs@Gel delivery enabled MAG to cross the BBB and enter dopaminergic neurons,thereby effectively alleviating the symptoms of MPTP-induced *** advantage of the lower critical solution temperature(LCST)behavior of this delivery platform increases its viscoelasticity in nasal cavity,thus improving the efficiency of MAG-NCs transit across the *** such,MAG-NCs@Gel represented an effective delivery platform capable of normalizing ROS and adenosine triphosphate(ATP)in the mitochondria of dopaminergic neurons,consequently reversing the mitochondrial dysfunction and enhancing the behavioral skills of PD mice without adversely affecting normal tissues.

关键词： nasal drugs Rational

A Server Placement Algorithm for Reducing Risk and Improving Power Utilization in Data Centers

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Tsinghua Science and Technology 2024年第1期29卷 158-173页

作者： rui Chen Huikang Huang Xiaoxuan luo Weiwei Lin School of Computer Science and Engineering South China University of TechnologyGuangzhou 510006China Peng Cheng Laboratory Shenzhen 518066China

As the power demand in data centers is increasing,the power capacity of the power supply system has become an essential resource to be *** many data centers use power oversubscription to make full use of the power capacity,there are unavoidable power supply risks associated with ***,how to improve the data center power capacity utilization while ensuring power supply security has become an important *** solve this problem,we first define it and propose a risk evaluation metric called Weighted Power Supply Risk(WPSRisk).Then,a method,named Hybrid Genetic Algorithm with Ant Colony System(HGAACS),is proposed to improve power capacity utilization and reduce power supply risks by optimizing the server placement in the power supply *** uses historical power data of each server to find a better placement solution by population *** possesses not only the remarkable local search ability of Ant Colony System(ACS),but also enhances the global search capability by incorporating genetic operators from Genetic Algorithm(GA).To verify the performance of HGAACS,we experimentally compare it with five other placement *** experimental results show that HGAACS can perform better than other algorithms in both improving power utilization and reducing the riskof powersupply system.

关键词： server placement power utilization power supply risk swarm intelligence algorithm

Synthesis, Crystal Structure and Biological Activity of Dimethyl 1-Methyl-1,4-dihydroquinoline-3,4-dicarboxylate and Tetramethyl Pyrrolo-[1,2-a]quinoline-2,3,4,5-tetracarboxylate

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Chinese Journal of Structural Chemistry 2020年第7期39卷 1271-1276页

作者： XU Xue-Mei luo Zai-Gang HAN Xin-Xin liu Qian-Nan LI rui College of Chemical Engineering Anhui University of Science and TechnologyHuainan 232001China

The target compounds 3(C14H15NO4)and 4(C20H17NO8)were synthesized and structurally determined by single-crystal X-ray *** crystal of 3 is in the monoclinic system,space group P21/c with a=7.3017(3),b=7.8737(5),c=22.4227(11)?,β=94.837(5)°,C14H15NO4,Mr=261.27,Dc=1.351 g/cm3,V=1284.51(11)?3,Z=4,F(000)=552,μ(MoKa)=0.828 mm–1,T=289.12(10)K,2236 independent reflections with 1827 observed ones(I>2σ(I)),R=0.0515 and w R=0.1394 with GOF=1.044(R=0.0605 and w R=0.1548 for all data).The crystal of compound 4 is in the monoclinic system,space group P21/c with a=7.1269(3),b=12.6518(6),c=20.7540(8)?,β=96.941(4)°,C20H17NO8,Mr=399.35,Dc=1.428 g/cm3,V=1857.61(14)?3,Z=4,F(000)=832.0,μ(MoKa)=0.950 mm–1,T=288.81(10)K,3216 independent reflections with 2253 observed ones(I>2σ(I)),R=0.0612 and wR=0.1548 with GOF=1.055(R=0.0824 and w R=0.1790 for all data).The skeleton of 1,4-dihydroquinoline 3 is noncoplanar,while pyrrolo[1,2-a]-quinoline 4 owns a coplanar frame ***-dimensional interaction model of compound 4 was formed by the one kind ofπ-πinteraction between the two adjacent molecules at upper and lower *** the inhibition to the strand transfer process of HIV-1 integrase of the title compounds was also evaluated.

关键词： 1,4-dihydroquinoline pyrrolo[1,2-a]quinoline synthesis crystal structure HIV-1 integrase

Application of silica-alumina as hydrothermally stable supports for Pt catalysts for acid-assisted soot oxidation

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Rare Metals 2023年第5期42卷 1614-1623页

作者： Shu-Ran liu Shu-Ting luo Xiao-Dong Wu Tao-Jin Wang rui Ran Duan Weng Zhi-Chun Si Shuang liu Key Laboratory of Advanced Materials of Ministry of Education of China School of Materials Science and EngineeringTsinghua UniversityBeijing100084China International Graduate School at Shenzhen Tsinghua UniversityShenzhen518055China School of Materials Science and Engineering Ocean University of ChinaQingdao266100China

In this work,silica-alumina mixed oxides with different SiO_(2)contents(5%and 30%)were adopted as acidic supports for platinum catalysts for soot *** obtained catalysts were hydrothermally aged in 10%H_(2)0/air at 750℃for 20 *** catalysts were characterized by X-ray diffraction(XRD),N_(2)adsorption,inductively coupled plasma(ICP),CO chemisorption,NH3temperature-programmed desorption(TPD),infrared(IR)spectroscopy of CO adsorption,temperature-programmed oxidation(TPO)of NO,and TPD of NO_(x).The surface acidity of catalyst was positive correlated with the content of SiO_(2),which kept platinum in metallic and partially oxidized states in an oxidizing *** with sulfation treatment on the alumina support,the application of SiO_(2)-Al_(2)O_(3)mixed oxides does not result in the coverage of Pt active sites and the prepared catalysts exhibit excellent activity for NO *** promote NOxpreferential adsorption on soot and decomposition of surface oxygenated compounds(SOCs)as the sulfated Pt/Al_(2)O_(3)catalyst does.

关键词： Platinum Acidic support Diesel soot Hydrothermal aging

Variations of 18S rDNA Loci Among Six Populations of Paeonia obovata Maxim. （Paeoniaceae） Revealed by Fluorescence In Situ Hybridization

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Journal of Integrative Plant Biology 2006年第5期48卷 497-502页

作者： rui luo Chao Wang Daming Zhang State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany the Chinese Academy of Sciences Beijing 100093 China

The localization of 18S ribosomal RNA genes （rDNA） by fluorescence in situ hybridization （FISH） had been performed for some species of Paeonla. However, the pattern of 18S rDNA loci among populations Is Indistinct. In the present study, we localized 18S rDNA loci on meiotic or mitotic chromosomes of six populations of Paeonla obovata Maxim. （Paeonlaceae）. Different numbers of rDNA loci were found with different diploid （2n=10） populations, namely eight （Lushl and Mt. JIuhua populations）, 10 （Mt. Talbal population）, and seven （Mt. Guandl population）, whereas tetraplold （2n=20） populations were all found with 16 loci. Aii rDNA loci were mapped near teiomeres of mitotic chromosomes and there was no chromosome with two loci. The present results show that molecular cytological polymorphlsm exists among P. obovata diploid populations, Indicating that structural variations occurred frequently during the evolutionary history of this species, accompanied with differentiation among populations.

关键词： cytotype fluorescence in situ hybridization (FISH) Paeonia obovata 18S rDNA tetraploid.