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T-odd top partner pair production in the dilepton final states at the LHC in the littlest Higgs Model with T-parity

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Chinese Physics C 2018年第10期42卷 19-24页

作者： bingfang yang Huaying Zhang Biaofeng Hou Ning Liu College of Physics and Materials Science Henan Normal UniversityXinxiang 453007China Department of Physics and Institute of Theoretical Physics Nanjing Normal UniversityNanjing 210023China

In the littlest Higgs model with T-parity, we discuss the pair production of the T-odd top partner （T_） that decays almost 100% into the top quark and the lightest T-odd particle （AH）. Considering the current constraints, we investigate the observability of the T-odd top partner pair production through the process pp→T_T_ →ttAHAH in the final states with two leptons at 14 TeV LHC. We analyze the signal significance and found that the lower limits on the T-odd top partner mass are approximately 1.2 TeV, 1.3 TeV, and 1.4 TeV at the 2or confidence level at 14 TeV LHC with an integrated luminosities of 30 fb^-1, 100 fb^-1, and 300 fb^-1, respectively. This lower limit can be increased to approximately 1.5（1.6） TeV if we used 1000（3000） fb^-1 of the integrated luminosity.

关键词： top partner LHC littlest Higgs Model with T-parity

Single top partner production in the tZ channel at eγ collision in the littlest Higgs model with T-parity

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Communications in Theoretical Physics 2020年第8期72卷 79-86页

作者： bingfang yang Hengheng Bi Biaofeng Hou Bingjie Wu School of Physics Henan Normal UniversityXinxiang 453007China College of Physical Science and Technology Central China Normal UniversityWuhan 430079China College of Physics and Electronic Engineering Zhengzhou Normal UniversityZhengzhou 450044China

Introducing the top partner is a common way to cancel the largest quadratically divergent contribution to the Higgs mass induced by the top quark. In this work, we study single top partner production in the tZ channel at eγ collision in the littlest Higgs model with T-parity(LHT). Since it is well known that polarized beams can enhance the cross section, we analyze the signal via polarized electron beams,and photon beams. we have selected two decay modes for comparison, based on the leptonic or the hadronic decays of the W and Z from the top partner. We then construct a detailed detector simulation, and choose a set of cuts to enhance signal significance. For mode A(B), the capacity for exclusion in this process at s1/2=3TeV is comparable to the current experimental limits with L=1000(500) fb-1. If the integrated luminosity can be increased to 3000 fb-1, the top partner mass+mTcan be excluded up to 1350(1440) GeV at 2σ level. We also considered the initial state radiation effect, and find that this effect reduces the excluding ability of the eγ collision on the the top partner mass by approximately 10 GeV. Moreover, the ability to exclude the LHT parameter space at eγ collision complements the existing research.

关键词： littlest Higgs model with T-parity top partner new physics eγcollider

Singlet vector-like T quark production in association with Wb at the CLIC

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Communications in Theoretical Physics 2023年第3期75卷 62-69页

作者： bingfang yang Shiyu Wang Xiaoli Sima Liangliang Shang School of Physics Henan Normal UniversityXinxiang 453007China

In a simplified model including an SU(2)singlet vector-like top quark T(VLT)with charge 2/3,we investigate the associated production of Wb with VLT at a Compact Linear Collider(CLIC).Focusing on the T→Wb decay channel,we discuss two decay models:e+e-→TW+b→(l-vb)(jjb)and e+e-→TW+b→(jjb)(l+νb).In this paper,we consider recent experimental limits including the electroweak precision observables,the width of the top quark,and the direct LHC *** a detailed detector simulation,we show the exclusion and discovery capability on the T at 3 TeV CLIC,where the initial state radiation effect has also been *** results show that it is promising to detect the VLT at future high-energy e+e-colliders.

关键词： VLQ CLIC simulation

Piperazine-derived ionizable lipids for enhanced mRNA delivery and cancer immunotherapy

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Nano Research 2024年第8期17卷 7357-7364页

作者： Kai Xu Yujia Xu Jin Sun Xinwei Cheng Chenxi Lu Wenzhong Chen bingfang He Tianyue Jiang School of Pharmaceutical Sciences Nanjing Tech UniversityNanjing 211816China Department of Nano Formulation Nanjing GeneLeap BiotechnologyNanjing 210061China

Messenger ribonucleic acid(mRNA)-based therapeutics hold great prospects in disease treatment and lipid nanoparticles(LNPs)are the most extensively applied non-viral platform for RNA delivery in *** the clinical success of LNPs as vehicles have been achieved,developing LNPs with enhanced mRNA transmembrane delivery and transfection efficiency in a non-toxic manner is highly desirable and *** this study,we designed a series of new ionizable amino lipids with piperazinederived headgroups and constructed a group of LNPs to promote the transfection activity of mRNA *** them,LNP formulated with lipid 10(L10-LNP)can efficiently package mRNA and perform superior transfection efficiency both in vitro and in vivo,which is mainly attributed to the improved intracellular uptake and effective endosomal *** verified that a single administration of L10-LNP packaging interleukin(IL)-12 mRNA induced tumor shrink and even regression by robust activation of immune effector CD8^(+)T cells and stimulating the generation of IFN-γwithout causing systemic toxicity,which provides a promising platform for clinical cancer immunotherapy.

关键词： ionizable lipid lipid nanoparticle piperazine-derived lipid mRNA therapeutics cancer immunotherapy

Search for the singlet vector-like top quark in the T→tZ channel with Z→vv at hadron colliders

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Chinese Physics C 2023年第4期47卷 101-109页

作者：韩琳王世钰尚亮亮杨炳方 School of Medical Engineering Xinxiang Medical UniversityXinxiang 453003China School of Physics Henan Normal UniversityXinxiang 453007China

Based on a simplified model including a singlet vector-like top quark T with charge|Q|=2/3,we analyze the prospects of observing T via the single T production in the tZ channel with Z decaying to neutrinos at the hadronhadron *** simplified model only includes two free parameters,the coupling constant g^(*)and the T quark mass m_(T).To investigate the observability of the single T production,we perform a detailed background analysis and detector simulation for the collision energies 14 TeV,27 TeV,and 100 *** scan the g^(*)-m_(T)parameter space and show the exclusion and discovery capabilities on the T quark with the highest integrated luminosity designed at these ***,the limits from the narrow-width approximation and electro weak precision observables are considered.

关键词： vector-like quark Hadron Collider detector simulation

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基于即时学习差异化建模的用电量预测方法

电力系统及其自动化学报 2020年第3期32卷 14-19页

作者：李海英杨冰芳孙伟卿上海理工大学机械工程学院上海200093

针对日用电量呈现多样化发展趋势,提出一种即时学习LL(lazy learning)差异化预测模型。LL基于相似输入产生相似输出,采用K向量近邻K-VNN(K-vector nearest neighbors)挑选与预测日期相似的用电场景,并以此“即时”构建回归预测模型。为... 详细信息

针对日用电量呈现多样化发展趋势,提出一种即时学习LL(lazy learning)差异化预测模型。LL基于相似输入产生相似输出,采用K向量近邻K-VNN(K-vector nearest neighbors)挑选与预测日期相似的用电场景,并以此“即时”构建回归预测模型。为缩小K-VNN的搜寻规模,通过模糊C均值FCM(fuzzy C-means)依据预测特征值进行数据聚类。灰色T型关联度用来选择特征值,进一步提高模型的运行效率。武汉某高校大楼的用电量预测结果表明:FCM-LL差异化建模方法在日用电量的预测效率和预测精度中具有显著的优越性。

关键词：用电量预测即时学习模糊C均值聚类灰色T型关联度差异化建模

黄河三角洲义和庄地区浅层沉积特征及对地震激发层选择的影响

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第四纪研究 2018年第2期38卷 426-440页

作者：杨剑萍王海峰杨炳方庞效林李帅中国石油大学地球科学与技术学院山东青岛266580 海洋国家实验室海洋矿产资源评价与探测技术功能实验室山东青岛266071 中海油研究总院有限责任公司北京100028 中国地质大学(北京)地球科学与资源学院北京100083 山东正元地球物理信息技术有限公司山东济南250101 中海石油(中国)有限公司上海分公司上海200335

晚更新世晚期以来全球气候由末次冰期冰盛期向冰后期转化，受海平面升降和黄河河道迁移的影响，地处海陆交互地带的黄河三角洲义和庄地区沉积特征复杂。利用14个浅层钻孔、沉积物粒度、微体古生物、孢粉、重矿物、14C测年等资料，从地... 详细信息

晚更新世晚期以来全球气候由末次冰期冰盛期向冰后期转化，受海平面升降和黄河河道迁移的影响，地处海陆交互地带的黄河三角洲义和庄地区沉积特征复杂。利用14个浅层钻孔、沉积物粒度、微体古生物、孢粉、重矿物、14C测年等资料，从地层划分与对比、沉积物特征、沉积演化等方面对该区晚更新世晚期以来的沉积特征进行了综合分析。研究表明，受古地理条件影响，研究区形成海陆交替的地层格局，地层自下而上划分5个单元，即上更新统＋垦利组、五号桩组一段、二段、三段及钓口组；沉积演化相应经历5个阶段，包括晚更新世晚期至早全新世早期、早全新世晚期、中全新世、晚全新世早期和晚全新世后期，依次发育河湖相-潮坪相-浅海相-潮坪相-三角洲相。在沉积特征研究的基础上，综合分析地层岩性、深度、虚反射面和低速带等因素，提出了该区油气勘探中地震激发层的选取原则，并据此确定五号桩组一段的潮坪沉积（16~18 m深度）是最佳激发层位，有效指导油田勘探工作。

关键词：第四系地层特征沉积演化激发层义和庄地区黄河三角洲

Overlooked uneven progress across sustainable development goals at the global scale: Challenges and opportunities

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The Innovation 2024年第2期5卷 42-50页

作者： Yali Liu Jianqing Du Yanfen Wang Xiaoyong Cui Jichang Dong Pan Gu Yanbin Hao Kai Xue Hongbo Duan Anquan Xia Yi Hu Zhi Dong bingfang Wu Jüurgen P.Kropp Bojie Fu School of Grassland Science Beijing Forestry UniversityBeijing 100083China Beijing Yanshan Earth Critical Zone National Research Station University of Chinese Academy of SciencesBeijing 101408China College of Resources and Environment University of Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Tibetan Plateau Earth System Environment and ResourcesChinese Academy of SciencesBeijing 100101China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China School of Economics and Management University of Chinese Academy of SciencesBeijing 100190China School of Humanities University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Adaptation and Evolution of Plateau Biota Northwest Institute of Plateau BiologyChinese Academy of SciencesXining 810001China School of Innovation and Entrepreneurship University of Chinese Academy of SciencesBeijing 100190China State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China Potsdam Institute for Climate Impact Research 14412 PotsdamGermany Institute for Environmental Science and Geography University of Potsdam14412 PotsdamGermany State Key Laboratory of Urban and Regional Ecology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

Differences in progress across sustainable development goals(SDGs)are widespread globally;meanwhile,the rising call for prioritizing specific SDGs may exacerbate such ***,how these progress differences would influence global sustainable development has been long ***,we present the first quantitative assessment of SDGs’progress differences globally by adopting the SDGs progress evenness *** results highlight that the uneven progress across SDGs has been a hindrance to sustainable development because(1)it is strongly associated with many public health risks(e.g.,air pollution),social inequalities(e.g.,gender inequality,modern slavery,wealth gap),and a reduction in life expectancy;(2)it is also associated with deforestation and habitat loss in terrestrial and marine ecosystems,increasing the challenges related to biodiversity conservation;(3)most countries with low average SDGs performance show lower progress evenness,which further hinders their fulfillment of SDGs;and(4)many countries with high average SDGs performance also showcase stagnation or even retrogression in progress evenness,which is partly ascribed to the antagonism between climate actions and other *** findings highlight that while setting SDGs priorities may be more realistic under the constraints of multiple global stressors,caution must be exercised to avoid new problems from intensifying uneven progress across ***,our study reveals that the urgent needs regarding SDGs of different regions seem complementary,emphasizing that regional collaborations(e.g.,demand-oriented carbon trading between SDGs poorly performed and well-performed countries)may promote sustainable development achievements at the global scale.

关键词： globally priori inequality

变论域模糊控制在VSC-HVDC控制器的应用研究

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电力与能源 2020年第4期41卷 431-436页

作者：董玥徐友刚杨冰芳孙进国网上海市电力公司青浦供电公司上海201700

随着柔性直流输电技术的发展,其应用范围愈渐广泛,而双闭环控制小信号模型在系统扰动较大的工况中,其控制参数的不变性使得控制效果欠佳。引入了变论域的模糊PID控制,该控制器的初始值利用经验公式法获取。考虑到初始论域不一定符合所... 详细信息

随着柔性直流输电技术的发展,其应用范围愈渐广泛,而双闭环控制小信号模型在系统扰动较大的工况中,其控制参数的不变性使得控制效果欠佳。引入了变论域的模糊PID控制,该控制器的初始值利用经验公式法获取。考虑到初始论域不一定符合所有输入信号的控制要求,通过引入伸缩因子,调整系统变量的论域,实现模糊量到隶属度函数的精确映射,获得更加准确的参数调整量,也提高了其动态性能和控制精度。利用仿真验证了变论域的模糊PID控制在VSC-HVDC双闭环控制的应用中控制效果更好,适用范围更广。

关键词：电力系统柔性直流输电技术变论域模糊控制 VSC-HVDC双闭环控制器