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Alphabet of one-loop Feynman integrals

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Chinese Physics C 2022年第9期46卷 48-61页

作者： Jiaqi Chen Chichuan Ma li lin yang Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China Zhejiang Institute of Modern Physics Department of PhysicsZhejiang UniversityHangzhou 310027China

In this paper, we present the universal structure of the alphabet of one-loop Feynman integrals. The letters in the alphabet are calculated using the Baikov representation with cuts. We consider both convergent and divergent cut integrals and observe that letters in the divergent cases can be easily obtained from convergent cases by applying certain limits. The letters are written as simple expressions in terms of various Gram determinants. The knowledge of the alphabet enables us to easily construct the canonical differential equations of the d log form and aids in bootstrapping the symbols of the solutions.

关键词： Baikov representation Alphabet UT basis

Matched MnO@C anode and porous carbon cathode for li-ion hybrid supercapacitors

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Rare Metals 2023年第6期42卷 1959-1968页

作者： Cui-Hua An Yue-Qing li Shuai Wu ling-Xiao Gao li-yang lin Qi-Bo Deng Ning Hu Key Laboratory of Hebei Province on Scale-Span Intelligent Equipment Technology and School of Mechanical EngineeringHebei University of TechnologyTianjin300401China Wuhan Green Power Hydrogen Energy Technology Co. LTDWuhan430000China The Green Aerotechnics Research Institute of Chongqing Jiaotong University Chongqing401120China State Key Laboratory of Reliability and Intelligence Electrical Equipment Hebei University of TechnologyTianjin300130China Institute of Materials Physics and Technolgy Hamburg University of TechnologyHamburg21073Germany

Holding a promise of achieving high power and energy densities,li-ion hybrid electrochemical capacitors present a crucial future direction for energy storage ***,technical challenges remain to appropriately couple both high-power capacitor-type and high-energy battery-type electrode materials within a same *** addition,the current electrode materials in the device are usually prepared separately,which leads to lengthy preparation,time-consuming and *** this work,we report a simple method to prepare porous carbon materials(PC) with and without MnO nanoparticle cores,which function as very unique anode/cathode pairs for very high-performance li ion hybrid *** the respective merits of high li storage capacity from the MnO@C anode and high-rate performance from the PC cathode,the resulted device exhibits a remarkable energy density of 89 Wh·kg^(-1)(at 48 W·kg^(-1)) and can reach a battery-inaccessible power density of 18 kW·kg^(-1)(at 45Wh·kg^(-1)).

关键词： li-ion hybrid supercapacitors Structural affinity MnO@C Porous carbon(PC) High energy density

Evaluation of high-resolution satellite precipitation products with surface rain gauge observations from Laohahe Basin in northern China

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Water Science and Engineering 2010年第4期3卷 405-417页

作者： Shan-hu JIANG li-liang REN Bin YONG Xiao-li yang lin SHI State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering Hohai University Nanjing 210098 P. R. China

Three high-resolution satellite precipitation products, the Tropical Rainfall Measuring Mission （TRMM） standard precipitation products 3B42V6 and 3B42RT and the Climate Precipitation Center＇s （CPC） morphing technique precipitation product （CMORPH）, were evaluated against surface rain gauge observations from the Laohahe Basin in northern China. Widely used statistical validation indices and categorical statistics were adopted. The evaluations were performed at multiple time scales, ranging from daily to yearly, for the years from 2003 to 2008. The results show that all three satellite precipitation products perform very well in detecting the occurrence of precipitation events, but there are some different biases in the amount of precipitation. 3B42V6, which has a bias of 21%, fits best with the surface rain gauge observations at both daily and monthly scales, while the biases of 3B42RT and CMORPH, with values of 81% and 67%, respectively, are much higher than a normal receivable threshold. The quality of the satellite precipitation products also shows monthly and yearly variation： 3B42RT has a large positive bias in the cold season from September to April, while CMORPH has a large positive bias in the warm season from May to August, and they all attained their best values in 2006 （with 10%, 50%, and -5% biases for 3B42V6, 3B42RT, and CMORPH, respectively）. Our evaluation shows that, for the Laohahe Basin, 3B42V6 has the best correspondence with the surface observations, and CMORPH performs much better than 3B42RT. The large errors of 3B42RT and CMORPH remind us of the need for new improvements to satellite precipitation retrieval algorithms or feasible bias adjusting methods.

关键词： satellite precipitation product TRMM 3B42RT TRMM 3B42V6 CMORPH surface rain gauge observation Laohahe Basin

p53 gene therapy in combination with transcatheter arterial chemoembolization for HCC:One-year follow-up

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World Journal of Gastroenterology 2011年第16期17卷 2143-2149页

作者： Yong-Song Guan Yuan liu Qing He Xiao li lin yang Ying Hu Zi La Department of Oncology West China HospitalSichuan University Chengdu 610041 Sichuan Province China

AIM:To evaluate the efficacy and safety of combination therapy with recombinant adenovirus p53 injection (rAdp53) and transcatheter hepatic arterial chemoembolization (TACE) for advanced hepatocellular carcinoma (HCC).METHODS:A total of 82 patients with advanced HCC treated only with TACE served as control *** 68 patients with HCC treated with TACE in combination with recombinant adenovirus-p53 injection served as p53 treatment *** were followed up for 12 *** and therapeutic effects were evaluated according to the improvement in clinical symptoms,leukocyte count,Karnofsky and RECIST *** rate was calculated with Kaplan-Meier ***:The total effective rate was 58.3% for p53 treatment group,and 26.5% for control group (P lications were *** respect to the efficacy,patients in p53 treatment group had less gastrointerestinal symptoms (P=0.062),better improvement in tumor-related pain (P=0.003),less downgrade of leukocyte counts (P=0.003) and more upgrade of Karnofsky performance score (P=0.029) than those in control *** total effective rate (CR + PR) for p53 treatment group and control group was 58.3% and 26.5%,respectively,with distributions of different effect in two groups (P=0.042).The survival rates were 89.71%,76.13%,and 43.30% for p53 treatment group,and 68.15%,36.98%,and 24.02% for control group,respectively,3,6 and 12 mo after treatment,suggesting that the survival rates are significantly higher for p53 tre

关键词： Adenovirus p53 Clinical trial Hepatocellular carcinoma Transcatheter hepatic arterial chemoembolization p53 gene therapy

Sustained release of Semaphorin 3A from a-tricalcium phosphate based cement composite contributes to osteoblastic differentiation of MC3T3-E1 cells

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Frontiers of Materials Science 2015年第3期9卷 282-292页

作者： Jin-Ning WANG Bin PI Peng WANG Xue-Feng li Hui-lin yang Xue-Song ZHU Department of Orthopaedic Surgery The first Affiliated Hospital of Soochow University Suzhou 215006 China

The reinforcement of calcium phosphate materials with silk fibroin （SF） has been one of the strategies to overcome the brittleness. However, the lack of osteoinductivity may still restrict their further use. This study aimed to investigate the biocompatibility and osteogenesis capacity of a novel Semaphorin 3A-loaded chitosan microspheres/SF/a-tricalcium phosphate composite （Sema3A CMs/SF/a-TCP） in vitro. Sema3A was first incorporated into CMs, and the Sema3A CMs/SF/a-TCP composite was then prepared. The morphology of the CMs was observed using SEM. The in vitro release kinetics, cytotoxicity, and cell compatibility were evaluated, and the real-time quantitative polymerase chain reaction （RT-qPCR） and activity of alkaline phosphatase （ALP） were used to evaluate the osteogenesis capacity of the composite. The in vitro release of Sema3A from the Sema3A CMs/SF/a-TCP composite showed a temporally controlled manner. The extract of the Sema3A CMs/SF/a-TCP composite presented no obvious side effect on the MC3T3-E1 cell proliferation, nor promote cell proliferation. The MC3T3-E1 cells were well-spread and presented an elongated shape on the Sema3A CMs/SF/a-TCP composite surface; the ALP activity and the osteogenic-related gene expression were higher than those seeded on the surface of the CMs/SF/a-TCP and SF/a-TCP composites. In conclusion, Sema3A CMslSF/a-TCP has excellent biocompatibility and contributes to the osteoblastic differentiation of MC3T3-E1 cells.

关键词： α-tricalcium phosphate (o-TCP) silk fibroin (SF) Semaphorin 3A osteo-blastic differentiation MC3T3-EI cell

Invariant-mass distribution of top-quark pairs and top-quark mass determination

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Chinese Physics C 2020年第9期44卷 1-6页

作者： Wan-li Ju Guoxing Wang Xing Wang Xiaofeng Xu Yongqi Xu li lin yang School of Physics and State Key Laboratory of Nuclear Physics and Technology Peking UniversityBeijing 100871China Institute for Particle Physics Phenomenology Durham UniversityDurham DH13LEUK PRISMA+Cluster of Excellence&Mainz Institute for Theoretical Physics Johannes Gutenberg University55099 MainzGermany Institut für Theoretische Physik Universität BernSidlerstrasse 5CH-3012 BernSwitzerland Zhejiang Institute of Modern Physics Department of PhysicsZhejiang UniversityHangzhou 310027China

In this study,we investigate the invariant-mass distribution of top-quark pairs near the 2mt threshold,which strongly influences the determination of the top-quark mass ***-order non-relativistic corrections lead to large contributions,which are not included in the state-of-the-art theoretical predictions.A factorization formula is derived to resum such corrections to all orders in the strong-coupling,and necessary ingredients are calculated to perform the resummation at next-to-leading *** combine the resummation with fixed-order results and present phenomenologically relevant numerical *** resummation effect significantly increases the differential cross-section in the threshold region and makes the theoretical prediction more compatible with experimental *** estimate that using our prediction in the determination of mt will lead to a value closer to the direct measurement result.

关键词： top quark QCD resummation

Synthesis of novel fullereneα-amino acid conjugates

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Chinese Chemical Letters 2008年第10期19卷 1159-1162页

作者： Jing Zhang Yah Xia Wang Feng Kang Ying Ya Shao Zong Jie li Xin lin yang School of life Science and Technology Beijing Institute of Technology Beijing 100081 China

Aspartic acid and glutamic acid with protected α-amino and α-carboxyl groups had been used to react with the activated hydroxyl group of N-substituted 3,4-fullero pyrrolidine. The products were deprotected, affording two monofuUerene α-amino acids, monofullerene aspartic acid （mFas） and monofullerene glutamic acid （mFgu）. Then a bifullerene glutamic acid conjugate （bFguC） was synthesized by reaction of mFgu containing protected amino group with N-substituted 3,4-fullero pyrrolidine.

关键词： Fullerene or-amino acid conjugates N-Substituted 3,4-fullero pyrrolidine Synthesis

Identification and Gene Mapping of a Novel Mutant supernumerary lodicules(snl) in Rice

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Journal of Integrative Plant Biology 2010年第3期52卷 265-272页

作者： Nan Wang Xian-Chun Sang Yun-Feng li Zheng-lin yang Fang-Ming Zhao Ying-Hua ling Zheng-Sheng Zhang Guang-Hua He Rice Research Institute Key Laboratory of Biotechnology and Crop Quality Improvement Ministry of Agriculture Southwest University Chongqing 400715 China

In order to gain a better understanding of rice flower development, a rice flower mutant supernumerary Iodicules （snl）, which was identified from ethyl methane sulfonate （EMS）-treated Jinhui10 （Oryza sativa L. ssp. indica） was used in the present study. In the snl mutant, the palea obtained lemma identity, additional glume-like organs formed, Iodicules increased and elongated, stamens decreased, and a few aberrant carpels formed. These phenotypes suggest that SNL is involved in the entire rice flower development. SNL was mapped between two simple sequence repeat markers RM3512 and RM1342 on chromosome 2, an approximate 800 kb region, and it co-segregated with SSR215. We conclude that SNL is a novel gene involved in flower development in rice. The present study will be useful for further cloning of the SNL gene, which will contribute to the elucidation of rice flower development.

关键词： no english key word

MICROSTRUCTURE OF RAPIDLY QUENCHED FOILS AND SOliDIFICATION BEHAVIOUR OF BULK UNDERCOOLED Ni-7.3%Si-2.2%B ALLOY

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Chinese Journal of Aeronautics 1992年第3期 143-149页

作者： li De-lin,yang Gen-cang,Zhou Yao-he(National Laboratory of Solidification Technology,Northwestern Polytechnical University)

The microstructures of rapidly quenched Ni-7.3%Si-2.2%B foils chilled at the coppersubstrate have been compared with bulk undercooled *** application of boronoxide fluxing method as well as pure successive heating-cooling cycles treatment enablessuch investigations over a wide range of undercooling up to △T=*** high speeddata acquisition and processing of cooling cycles of melts are accomplished by amicrocomputer （Apple Ⅱ）.It has been shown that （1）recalescence takes place in twostages:first,rapid temperature rise and second,much slower recalescence,and （2）recalescence times for Ni-7.3%Si-2.2%B alloys decrease with increasing the ***,in the light of measured recalescence curves both the dependence ofthe solid fraction on time and the solidification rate on transient undercooling were determined.

关键词： MICROSTRUCTURE OF RAPIDLY QUENCHED FOILS AND SOliDIFICATION BEHAVIOUR OF BULK UNDERCOOLED Ni-7.3%Si-2.2%B ALLOY rate Ni high Si