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FAST Pulsar *** Profiles of 682 Pulsars

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Research in Astronomy and Astrophysics 2023年第10期23卷 71-175页

作者： P.F.Wang J.L.Han J.Xu c.Wang Y.Yan W.c.Jing W.Q.Su D.J.Zhou T.Wang National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Astronomy University of Chinese Academy of SciencesBeijing 100049China

Pulsar polarization profiles form a very basic database for understanding the emission processes in a pulsar *** careful polarization calibration of the 19-beam L-band receiver and verification of beamoffset observation results,we obtain polarization profiles of 682 pulsars from observations by the Five-hundredmeter Aperture Spherical radio Telescope(FAST)duringthe Galactic Plane Pulsar Snapshot survey and other normal FAST *** them,polarization profiles of about 460 pulsars are observed for the first *** profiles exhibit diverse *** pulsars have a polarization position angle curve with a good S-shaped swing,some with orthogonal modes;some have components with highly linearly polarized components or strong circularly polarized components;some have a very wide profile,coming from an aligned rotator,and some have an interpulse from a perpendicular rotator;some wide profiles are caused by interstellar *** derive geometric parameters for 190 pulsars from the S-shaped position angle curves or with orthogonal *** find that the linear and circular polarization or the widths of pulse profiles have various frequency *** with a large fraction of linear polarization are more likely to have a large Edot.

关键词： polarization (stars:)pulsars:general astronomical databases:miscellaneous

Genome-Wide Linkage and Positional Association Analyses Identify Associations of Novel AFF3 and NTM Genes with Triglycerides:The GenSalt Study

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Journal of Genetics and Genomics 2015年第3期42卷 107-117页

作者： changwei Li Lydia A.L.Bazzano Dabeeru c.Rao James E.Hixson Jiang He Dongfeng Gu charles c.Gu Lawrence c.Shimmin cashell E.Jaquish Karen Schwander De-Pei Liu Jianfeng Huang Fanghong Lu Jie cao Shen chong Xiangfeng Lu Tanika N.Kelly Department of Epidemiology Tulane University School of Public Health and Tropical Medicine Department of Medicine Tulane University School of Medicine Division of Biostatistics Washington University School of Medicine Department of Epidemiology Human Genetics and Environmental SciencesUniversity of Texas School of Public Health State Key Laboratory of cardiovascular Disease Fuwai HospitalNational Center of Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical College Division of Prevention and Population Sciences National HeartLungBlood Institute National Laboratory of Medical Molecular Biology Institute of Basic Medical SciencesChinese Academy of Medical Sciences and Peking Union Medical College Institute of Basic Medicine Shandong Academy of Medical Sciences Department of Epidemiology and Biostatistics Nanjing Medical University School of Public Health

We conducted a genome-wide linkage scan and positional association study to identify genes and variants influencing blood lipid levels among participants of the Genetic Epidemiology Network of Salt-Sensitivity （GenSalt） study. The GenSalt study was conducted among 1906 participants from 633 Han chinese families. Lipids were measured from overnight fasting blood samples using standard methods. Multipoint quantitative trait genome-wide linkage scans were performed on the high-density lipoprotein, low-density lipoprotein, and log- transformed triglyceride phenotypes. Using dense panels of single nucleotide polymorphisms （SNPs）, single-marker and gene-based association analyses were conducted to follow-up on promising linkage signals. Additive associations between each SNP and lipid phenotypes were tested using mixed linear regression models. Gene-based analyses were performed by combining P-values from single- marker analyses within each gene using the truncated product method （TPM）. Significant associations were assessed for replication among 777 Asian participants of the Multi-ethnic Study of Atherosclerosis （MESA）. Bonferroni correction was used to adjust for multiple testing. In the GenSalt study, suggestive linkage signals were identified at 2p11.2-2q12.1 [maximum multipoint LOD score （MML） = 2.18 at 2q11.2] and t lq24.3-11q25 （MML = 2.29 at 11q25） for the log-transformed triglyceride phenotype. Follow-up analyses of these two regions revealed gene-based associations of charged multivesicular body protein 3 （cHMP3）, ring finger protein 103 （RNF103）, AF4/FMR2 family, member 3 （AFF3）, and neurotrirnin （NTM） with triglycerides （P = 4 ×10^-4, 1.00 × 10^-5, 2.00 × 10^-5, and 1.00 × 10^-7, respectively）. Both the AFF3 and NTM triglyceride associations were replicated among MESA study participants（P = 1.00 × 10^-7 and 8.00× 10^-5, respectively）. Furthermore, NTM explained the linkage signal on chromosome 11, In conclusion, we identified novel genes associated with lipid

关键词： Lipids Linkage analysis Positional association analysis Gene-based analysis

Pricing Decision of E-commerce Supply chains with Return and Online Review of Product Quality

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Journal of Systems Science and Information 2023年第4期11卷 405-426页

作者： Yuyan WANG Luping DING T.c.E.cHENG Dexia WANG School of Management Science and Engineering Shandong University of Finance and EconomicsJinan 250014China Poly U Business School The Hong Kong Polytechnic UniversityHong Kong 999077China

The online review function helps consumers grasp more real product information and reduce the possibility of returning, but it may also damage firms’ reputations or profits. However, few studies considered the relationship between online reviews and consumer returns. Based on this, we develop an e-commerce supply chain(E-Sc) game model consisting of a single manufacturer and a single e-platform, aiming to explore the relationship between consumer returns and online reviews and to analyze the impact on both the decision-making of E-Sc members and their profits. We find that there is a negative relationship between consumer returns and online reviews of product quality, and consumer returns make the pricing decisions in the two scenarios of yes/no online reviews move toward two different directions. Only when the online review is positive and higher than a certain threshold will it have a positive impact on sales and E-Sc members’ profits. Finally, we design a new “commission joint returns and quality improvement costs sharing” contract to optimize the decentralized model with online reviews, and we find that the higher the accuracy of product information, the less conducive the contract applied to E-Sc.

关键词： e-commerce supply chains pricing decision consumer returns online review

A high specific Young's modulus steel reinforced by spheroidal kappa-carbide

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Journal of Materials Science & Technology 2021年第28期87卷 54-59页

作者： P.chen J.Fu X.Xu c.Lin J.c.Pang X.W.Li R.D.K.Misra G.D.Wang H.L.Yi Department of Materials Physics and chemistry School of Materials Science and Engineeringand Key Laboratory for Anisotropy and Texture of MaterialsNortheastern UniversityShenyang 110819China The State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110819China Angang Steel company Limited Technology centre Anshan 114009China Laboratory for Excellence in Advanced Steel Research Department of MetallurgicalMaterials and Biomedical EngineeringUniversity of Texas at El Paso500 W.University AvenueEl PasoTX 79968USA

*** High strength steels continue to be developed for automotive applications to increase safety and reduce lightweight by downgauging[1,2].In addition,reducing density is another solution for the lightweight of automotive components[3,4].Aluminum addition could effectively reduce the density of steels,since it has a low atomic mass and invokes a lattice expansion[5].

关键词： carbide steel strength

Effect of combined Use of Brackish Water and Nitrogen Fertilizer on Biomass and Sugar Yield of Sweet Sorghum

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Pedosphere 2012年第6期22卷 785-794页

作者： T.B.RAMOS N.L.cASTANHEIRA M.c.GONALVES M.L.FERNANDES M.I.JANURIO M.E.LOURENO F.P.PIRES J.c.MARTINS cEER-Biosystems Engineering Institute of Agronomy Technical University of Lisbon Tapada da Ajuda 1349-017 Lisbon (Portugal) Estao Agronómica Nacional L-INIA Instituto Nacional de Recursos Biológicos Quinta do Marquês Av. República 2784-505 Oeiras (Portugal) Departamento de Fitotecnia Instituto de Ci encias Agrrias e Ambientais Mediterrnicas Universidade de vora Apartado 94 7002-554 vora (Portugal)

Soil salinization and non-point source pollution are among the most important and widespread environmental problems in European Mediterranean regions. Sweet sorghum （Sorghum bicolor （L.） Moench var. saccharatum） is a moderate to high salinity tolerant crop with low water and nutrient needs, seen as an alternative to grow in the water scarce regions. A three-year multifactorial study was conducted in southern Portugal to evaluate the combined effects of saline water and nitrogen application on the dry biomass （total, stems, and leaves）, sugar content （total reducing sugars and sucrose eontents） and sugar yield （here defined as the product of total reducing sugars and stems dry biomass） functions of sweet sorghum. Sorghum dry biomass and sugar yield showed diminishing returns for each incremental change of nitrogen. The use of saline irrigation waters also led to yield reduction. Exception was sucrose content which increased with increasing levels of sodium in the soil. Nitrogen need decreased as the amount of sodium applied increased. Stem dry biomass, sucrose content, and sugar yield progressively increased with progress in the experiment. The effect could be attributed to the increase of the amount of irrigation applied throughout the years, thus increasing the leaching fraction which promoted salt leaching from the root zone, reduced the salinity stress, increased plant transpiration, nitrogen uptake and biomass yield.

关键词： Mediterranean conditions non-point source pollution salinity sweet sorghum yield functions

Five trends of education and technology in a sustainable future

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Geography and Sustainability 2020年第2期1卷 93-97页

作者： Nicholas c.Burbules Guorui Fan Philip Repp Department of Educational Policy Organization and LeadershipUniversity of IllinoisUrbana-ChampaignUrbanaIL 61801United States Institute of Education Governance Faculty of EducationEast China Normal UniversityShanghai 200062China Office of Information Technology Western Michigan UniversityKalamazoo MI 49008-5200United States

Quality education is one of the pillars in the United Nations 2030 Agenda for Sustainable Development,which aims to ensure inclusive and equitable quality education and promote lifelong learning opportunities for *** overall goal can be connected to some general trends affecting education in the information *** argue that education is key to the future quality of human life and the sustainability of the ***,education is being transformed in both formal and informal learning contexts by new digital ***,some of these major innovations and how they are changing education can be summarized into the following aspects:1)our educational aims and objectives;2)educational ecologies and contexts of learning;3)the processes of learning;4)the processes of teaching;and 5)educational governance and ***,we note some of the potential risks and downsides of these technology *** the sustainable perspective,our review points to a great potential for educational reform,but it can only be achieved if we are willing to rethink and even abandon some of our traditional ways of doing things in education.

关键词： Education for sustainable development Educational technology Educational transformation Learning and teaching Governmental policy

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机械工程助力半导体纤维光子学

Science Bulletin 2024年第14期69卷 2151-2152页

作者： Anna c.Peacock Optoelectronics Research centre University of SouthamptonSO171BJUK

Glass optical fibres have had a tremendous impact on modern society,not only changing the way we communicate and share information on a global scale,but also how we sense,monitor,and manufacture using light-based *** fashioned from silica glass,commercial optical fibres owe their ubiquity to decades of efforts in optimizing the fabrication techniques to minimize transmission losses,principally within the telecommunications wavelength bands[1].However,the intrinsic properties of silica glass,such as its transmission window,nonlinear coefficients,and the absence of electronic functionality,have limited the use of these fibres in some ***,alongside these efforts,fibre fabrication teams have continued to explore alternative material systems that can help to lift some of these limitations and extend the reach of optical fibres and their applications.

关键词：光子学 silica fibres

Service Pricing Decision of E-commerce Supply chain Members considering Diseconomies of Scale and Network Externalities

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Journal of Systems Science and Information 2022年第5期10卷 425-444页

作者： Yuyan WANG Ying cUI Liang SHEN T.E.c cHENG School of Management Science and Engineering Shandong University of Finance and EconomicsJinan250014China School of Public Finance and Taxation Shandong University of Finance and EconomicsJinan 250014China PolyU Business School The Hong Kong Polytechnic UniversityHung HomKowloonHong Kong 999077China

considering diseconomies of scale and network externalities in the e-commerce supply chain(EcSc),we construct an e-platform-led benchmark model and derive the optimal ***,the model is extended by endogenizing the impact of service level on network *** service investment that includes fixed and variable investments,the model is further *** the extended models with the benchmark model,we found the following *** the e-platform dominates the EcSc,its profit is lower than the *** corporate profits,service level,and price increase with network *** in diseconomies of scale decrease the corporate profits and service level,but increase the price.A high-quality service combined with network externalities can achieve synergy and improve the e-platform’s economies of scale,further generating a higher *** network externalities promotes the fair profit distributionin EcSc and achieves stable development.

关键词： e-commerce supply chain diseconomies of scale network externalities service level

Formation and decay of neutron-deficient nuclei Po and Pb

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Nuclear Science and Techniques 1998年第1期9卷 11-13页

作者： chen Xue Shi 1,2 , Ahmad I 3, Andreyev A N 4,Batchelder J c 7, Bijnens N 4, Bingham c R 2,5 , Blumenthal D 3, Busse B c 3,8 , conticchico L F 3,6 , Davids c N 3 , Huyse M 4, Janssens R V F 3, Mantica P 2, Penttila

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关键词：中子欠缺核钋核铅核衰变