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Exotic hadron bound state production at hadron colliders

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Chinese Physics C 2017年第8期41卷 53-63页

作者： Yi Jin Shi-Yuan Li Yan-Rui Liu lu meng Zong-Guo Si Xiao-Feng Zhang School of Physics and Technology University of Jinan Jinan 250022 China School of Physics Shandong University Jinan 250100 China CCEPP Institute of High Energy Physics Beijing 100049 China

The non-relativistic wave function framework is applied to study the production and decay of exotic hadrons, which can be effectively described as bound states of other hadrons. Employing the factorized formulation,with the help of event generators, we investigate the production of exotic hadrons in multiproduction processes at high energy hadron colliders. This study provides crucial information for the measurements of the relevant exotic hadrons.

关键词： bound states of hadrons wave function multiproduction

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目标跟踪算法综述

自动化学报 2019年第7期45卷 1244-1260页

作者：孟琭杨旭东北大学信息科学与工程学院

目标跟踪一直以来都是计算机视觉领域的关键问题,最近随着人工智能技术的飞速发展,运动目标跟踪问题得到了越来越多的关注.本文对主流目标跟踪算法进行了综述,首先,介绍了目标跟踪中常见的问题,并由时间顺序对目标跟踪算法进行了分类:... 详细信息

目标跟踪一直以来都是计算机视觉领域的关键问题,最近随着人工智能技术的飞速发展,运动目标跟踪问题得到了越来越多的关注.本文对主流目标跟踪算法进行了综述,首先,介绍了目标跟踪中常见的问题,并由时间顺序对目标跟踪算法进行了分类:早期的经典跟踪算法、基于核相关滤波的跟踪算法以及基于深度学习的跟踪算法.接下来,对每一类中经典的跟踪算法的原始版本和各种改进版本做了介绍、分析以及比较.最后,使用OTB-2013数据集对目标跟踪算法进行测试,并对结果进行分析,得出了以下结论:1)相比于光流法、Kalman、Meanshift等传统算法,相关滤波类算法跟踪速度更快,深度学习类方法精度高. 2)具有多特征融合以及深度特征的追踪器在跟踪精度方面的效果更好. 3)使用强大的分类器是实现良好跟踪的基础. 4)尺度的自适应以及模型的更新机制也影响着跟踪的精度.

关键词：目标跟踪特征选择 Meanshift 尺度变化核相关滤波

Roles of cancer stem cells in gastrointestinal cancers

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World Journal of Stem Cells 2023年第4期15卷 209-220页

作者： Shi-Hai Xuan meng-lu Hua Ze Xiang Xiang-Lin He Lan Huang Chun Jiang Peng Dong Jian Wu Department of Laboratory Medicine The People’s Hospital of Dongtai CityDongtai 224299Jiangsu ProvinceChina School of Medicine Zhejiang UniversityHangzhou 310009Zhejiang ProvinceChina Department of Clinical Laboratory Suzhou Municipal HospitalSuzhou 215008Jiangsu ProvinceChina Hangzhou Institute of Cardiovascular Diseases Hangzhou Normal UniversityHangzhou 310015Zhejiang ProvinceChina

Cancer stem cells(CSCs)are the main cause of tumor growth,invasion,metastasis and ***,CSCs have been extensively studied to identify CSCspecific surface markers as well as signaling pathways that play key roles in CSCs *** involvement of CSCs in the pathogenesis of gastrointestinal(GI)cancers also highlights these cells as a priority target for *** diagnosis,prognosis and treatment of GI cancer have always been a focus of ***,the potential application of CSCs in GI cancers is receiving increasing *** review summarizes the role of CSCs in GI cancers,focusing on esophageal cancer,gastric cancer,liver cancer,colorectal cancer,and pancreatic *** addition,we propose CSCs as potential targets and therapeutic strategies for the effective treatment of GI cancers,which may provide better guidance for clinical treatment of GI cancers.

关键词： Cancer stem cells Gastrointestinal cancers Promotion Inhibition Treatment

Optimizing the application of a novel harvest aid to improve the quality of mechanically harvested cotton in the North China Plain

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Journal of Integrative Agriculture 2021年第11期20卷 2892-2899页

作者： meng lu ZHANG Li-zhen QI Hai-kun DU Ming-wei ZUO Yan-li ZHANG Ming-cai TIAN Xiao-li LI Zhao-hu Engineering Research Center of Plant Growth Regulator Ministry of Education/College of Agronomy and BiotechnologyChina Agricultural UniversityBeijing 100193P.R.China College of Resources and Environmental Sciences China Agricultural UniversityBeijing 100193P.R.China Hebei Cottonseed Engineering Technology Research Center Hejian 062450P.R.China

Defoliation is an indispensable step in cotton production with mechanical harvesting,especially in the North China Plain(NCP)where mechanical harvesting is limited by a large proportion of green leaves and unopened bolls at harvest time due to insufficient thermal *** is essential to quantify the optimal use of defoliation products while minimizing yield and quality loss in *** objective of this study was to test the effect of a new defoliant Xinsaili(XSL,a compound of 10% thidiazuron and 40% ethephon)on the spatial distribution of cotton leaves and bolls,yield and quality in the *** were four treatments:XSL 1800 m L ha^(-1),XSL 2700 m L ha^(-1),XSL splitted into two equal applications(1350 m L ha^(-1) for each),and XSL-free(water)*** experiments were conducted in Hebei,China in *** the defoliant treatments did not significantly affect cotton yield and fiber quality compared with the water *** harvest time,the rate of open bolls under XSL 2700 m L ha^(-1) was 13.5% higher than that under XSL-free control,while the other two treatments showed no significant difference,across the two *** percentage of the three XSL treatments showed no difference,but they were on average 42.2% higher than that of XSL-free *** year-round effect of the defoliant XSL was significant,indicating that climate factors would affect its *** was concluded that the optimal dose of XSL in the NCP was 2700 m L ha^(-1),and it was unnecessary to split it into two *** results would promote cotton mechanical harvesting and reduce the labor cost of cotton production in China.

关键词： thidiazuron ethephon defoliation leaf distribution yield components

Shade stress decreases stem strength of soybean through restraining lignin biosynthesis

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Journal of Integrative Agriculture 2019年第1期18卷 43-53页

作者： LIU Wei-guo Sajad Hussain LIU Ting ZOU Jun-lin REN meng-lu ZHOU Tao LIU Jiang YANG Feng YANG Wen-yu Institute of Ecological Agriculture Sichuan Agricultural University/Sichuan Engineering Research Center for Crop Strip Intercropping System Rural Development Office of Pengzhou

Lodging is the most important constraint for soybean growth at seedling stage in maize-soybean relay strip intercropping *** the field experiments,three soybean cultivars Nandou 032-4(shade susceptible cultivar; B1),Jiuyuehuang(moderately shade tolerant cultivar; B2),and Nandou 12(shade tolerant cultivar; B3) were used to evaluate the relationship between stem stress and lignin metabolism in the stem of *** showed that the intercropped soybean was in variable light condition throughout the day time and co-growth stage with *** xylem area and cross section ratio played a main role to form the stem *** B3 both in intercropping and monocropping expressed a high stem stress with higher xylem area,lignin content,and activity of enzymes(phenylalanine ammonia-lyase(PAL),4-coumarate: CoA ligase(4CL),cinnamyl alcohol dehydrogenase(CAD),and peroxidase(POD)) than those of B1 and *** the soybean cultivars and planting pattern,lignin content was positively correlated with stem ***,a negative correlation was found between lignin content and actual rate of *** conclusion,the shade tolerant soybean cultivar had larger xylem area,higher lignin content and activities of CAD,4CL,PAL,and POD than other soybean cultivars in *** lodging in maize-soybean intercropping can be minimized by planting shade tolerant and lodging resistant cultivar of *** lignin content in stem could be a useful indicator for the evaluation of lodging resistance of soybean in intercropping and activities of enzymes were the key factors that influence the lignin biosynthesis.

关键词： intercropping genotype Glycine max lignin accumulation shade stress

Regain of sex determination system and sexual reproduction ability in a synthetic octoploid male fish

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Science China(Life Sciences) 2021年第1期64卷 77-87页

作者： meng lu Xi-Yin Li Zhi Li Wen-Xuan Du Li Zhou Yang Wang Xiao-Juan Zhang Zhong-Wei Wang Jian-Fang Gui State Key Laboratory of Freshwater Ecology and Biotechnology Institute of HydrobiologyThe Innovative Academy of Seed DesignChinese Academy of SciencesWuhan430072China University of Chinese Academy of Sciences Beijing100049China

Polyploids in vertebrates are generally associated with unisexual reproduction,but the direct consequences of polyploidy on sex determination system and reproduction mode remain ***,we synthesized a group of artificial octoploids between unisexual gynogenetic hexaploid Carassius gibelio and sexual tetraploid Carassius *** synthetic octoploids were revealed to have more than 200 chromosomes,in which 50 chromosomes including the X/Y sex determination system were identified to transfer from sexual tetraploid *** into the unisexual gynogenetic hexaploid ***,a few synthetic octoploid males were found to be fertile,and one octoploid male was confirmed to regain sexual reproduction ability,which exhibits characteristics that are the same to sexual reproduction tetraploid males,such as 1:1 sex ratio occurrence,meiosis completion and euploid sperm formation in spermatogenesis,as well as normal embryo development and gene expression pattern during ***,the current finding provides a unique case to explore the effect of sex determination system incorporation on reproduction mode transition from unisexual gynogenesis to sexual reproduction along with genome synthesis of recurrent polyploidy in vertebrates.

关键词： polyploidy synthetic polyploid unisexual reproduction sexual reproduction sex determination system sex chromosome

Masking quantum information in multipartite systems via Fourier and Hadamard matrices

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Communications in Theoretical Physics 2025年第2期77卷 101-111页

作者： Chen-Ming Bai meng-Ya Wang Su-Juan Zhang lu Liu Department of Mathematics and Physics Shijiazhuang Tiedao University

Quantum information masking（QIM） is a crucial technique for protecting quantum data from being accessed by local subsystems. In this paper, we introduce a novel method for achieving1-uniform QIM in multipartite systems utilizing a Fourier matrix. We further extend this approach to construct an orthogonal array with the aid of a Hadamard matrix, which is a specific type of Fourier matrix. This allows us to explore the relationship between 2-uniform QIM and orthogonal arrays. Through this framework, we derive two distinct 2-uniform quantum states,enabling the 2-uniform masking of original information within multipartite ***, we prove that the maximum number of quantum bits required for achieving a2-uniformly masked state is 2~n-1, and the minimum is 2n-1+ 3. Moreover, our scheme effectively demonstrates the rich quantum correlations between multipartite systems and has potential application value in quantum secret sharing.

关键词： multipartite systems quantum information masking Fourier matrix orthogonal arrays

Relationship between Free Thyroxine and Islet Beta-cell Function in Euthyroid Subjects

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Current Medical Science 2020年第1期40卷 69-77页

作者： Qing LI meng lu Ning-jian WANG Yi CHEN Ying-chao CHEN Bing HAN Qin LI Fang-zhen XIA Bo-ren JIANG Hua-ling ZHAI Dong-ping LIN Ying-li lu Institute and Department of Endocrinology and Metabolism Shanghai Ninth People's HospitalShanghai Jiaotong University School of MedicineShanghai 200011China

Thyroid hormones have a specific effect on glucose-induced insulin secretion from the *** aimed to investigate the association between euthyroid hormones and islet betacell function in general population and non-treated type 2 diabetes mellitus(T2DM)patients.A total of 5089 euthyroid participants(including 4601 general population and 488 non-treated T2DM patients)were identified from a cross-sectional survey on the prevalence of metabolic diseases and risk factors in East China from February 2014 to June *** indices,biochemical parameters,and thyroid hormones were *** with general population,non-treated T2DM patients exhibited higher total thyroxine(TT4)and free thyroxine(FT4)levels but lower ratio of free triiodothyronine(T3):T4(P<0.01).HOMA-βhad prominently negative correlation with FT4 and positive relationship with free T3:T4 in both groups even after adjusting for age,body mass index(BMI)and *** analyzed by quartiles of FT4 or free T3:T4,there were significantly decreased trend of HOMA-β going with the higher FT4 and lower free T3:T4 in both *** regression analysis showed that FT4 but not FT3 and free T3:T4 was negatively associated with HOMA-β no matter in general population or T2DM patients,which was independent of age,BMI,smoking,hypertension and lipid ***4 is independently and negatively associated with islet beta-cell function in euthyroid *** hormone even in reference range could play an important role in the function of pancreatic islets.

关键词： free thyroxine free triiodothyronine islet beta-cell function euthyroid hormones diabetes

Green synthesis of bifunctional phthalocyanine-porphyrin COFs in water for efficient electrocatalytic CO2 reduction coupled with methanol oxidation

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National Science Review 2023年第11期10卷 160-170页

作者： Mi Zhang Jia-Peng Liao Run-Han Li Sheng-Nan Sun meng lu Long-Zhang Dong Pei Huang Shun-Li Li Yue-Peng Cai Ya-Qian Lan School of Chemistry South China Normal University

Electrocatalytic CO2reduction（ECR） coupled with organic oxidation is a promising strategy to produce high value-added chemicals and improve energy efficiency. However, achieving the efficient redox coupling reaction is still challenging due to the lack of suitable electrocatalysts. Herein, we designed two bifunctional polyimides-linked covalent organic frameworks（PI-COFs） through assembling phthalocyanine（Pc） and porphyrin（Por） by non-toxic hydrothermal methods in pure water to realize the above catalytic *** to the high conductivity and well-defined active sites with different chemical environments, Ni Pc-Ni Por COF performs efficient ECR coupled with methanol oxidation reaction（MOR）(Faradaic efficiency of CO（FECO） = 98.12%, partial current densities of CO（j CO） = 6.14 m A cm-2for ECR, FEHCOOH = 93.75%,j HCOOH = 5.81 m A cm-2for MOR at low cell voltage（2.1 V） and remarkable long-term stability).Furthermore, experimental evidences and density functional theory（DFT） calculations demonstrate that the ECR process mainly conducts on Ni Pc unit with the assistance of Ni Por, meanwhile, the MOR prefers Ni Por conjugating with Ni Pc. The two units of Ni Pc-Ni Por COF collaboratively promote the coupled oxidation-reduction reaction. For the first time, this work achieves the rational design of bifunctional COFs for coupled heterogeneous catalysis, which opens a new area for crystalline material catalysts.

关键词： hydrothermal synthesis phthalocyanine-porphyrin COFs bifunctional electrocatalysts electrocatalytic CO2 reduction methanol oxidation reaction