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Cohen-Fischman-Westreich's Double Centralizer Theorem for Almost-Triangular Hopf Algebras

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Chinese Annals of Mathematics,Series B 2016年第4期37卷 483-494页

作者： Guohua LIU xiaofan zhao Department of Mathematics Southeast University College of Mathematics and Information Science Henan Normal University

In this paper, the authors study the Cohen-Fischman-Westreich's double centralizer theorem for triangular Hopf algebras in the setting of almost-triangular Hopf algebras.

关键词： Schur's double centralizer theorem Cohen-Fischman-Westreich's doublecentralizer theorem Almost-triangular Hopf algebra R-Lie algebra

Generalized Weak Group-Like Algebra

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Journal of Mathematical Research with Applications 2024年第1期44卷 113-121页

作者： xiaofan zhao Xiaohui ZHANG College of Mathematics and Information Science Henan Normal University School of Mathematical Sciences Qufu Normal University

In this paper, we introduce the notion of a generalized weak group-like algebra which is designed to cover finite groupoid algebras and group-like algebras. Then we construct a list of examples and show that a generalized weak group-like algebra can be regarded as a generalized weak bi-Frobenius algebra. Moreover, we discuss when a generalized weak bi-Frobenius algebra is a groupoid algebra. Finally, we give the classifications of low-dimensional generalized weak group-like algebras.

关键词： generalized weak group-like algebra generalized weak bi-Frobenius algebra weak Hopf algebra group-like algebra

Optical signal processing based on semiconductor optical amplifier and tunable delay interferometer

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Frontiers of Optoelectronics 2011年第3期4卷 308-314页

作者： xiaofan zhao Caiyun LOU Yanming FENG Tsinghua National Laboratory for Information and Science Technology/State Key Laboratory on Integrated Optoelectronics Department of Electronic Engineering Tsinghua University

In this paper, several applications in all-optical signal processing based on a semiconductor optical amplifier(SOA) and variable delayed interferometers(DIs) have been experimentally demonstrated. Wavelength converter based on a nonlinear polarization switch(NPS)and a DI is proposed and presented for the wavelength conversion of nonreturn-to-zero(NRZ) signals. An alloptical nonreturn-to-zero to return-to-zero(NRZ-to-RZ)format converter with tunable duty cycles is achieved by the DI with variable delays. The 40 Gb/s reconfigurable optical OR/NOR gate in a single SOA, followed a tunable optical bandpass filter(OBF) and a DI, optical 2R regeneration using an SOA-DI are investigated. It is found that this combinative realization of filters has been endowed with great flexibility and quality for 40 Gb/s optical logic and 2R regeneration.

关键词： all-optical signal processing semiconductor optical amplifier delayed interferometer wavelength conversion format converter 2R regeneration

Key global climate governance problems and Chinese countermeasures

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Chinese Journal of Population,Resources and Environment 2021年第2期19卷 125-132页

作者： Hailin Wang Xiaodan Huang xiaofan zhao Jiankun He Institute of Energy Environment and EconomyTsinghua UniversityBeijing100084China Institute of Climate Change and Sustainable Development Tsinghua UniversityBeijing100084China School of Public Policy and Management Tsinghua UniversityBeijing100084China

Presently,the full implementation of the negotiations and collaborations under the Paris Agreement faces new key problems and severe *** problems and challenges include the following:how to honor the principle of“common but differentiated responsibilities”to facilitate a comprehensive,balanced,and effective implementation of the key elements of the Paris Agreement,such as adaptation,mitigation,finance,technology,capacity building,and transparency;how to uphold and maintain the status of China and other emerging countries as developing countries in light of the requirements of the United Nations Framework Convention on Climate Change and the historical responsibilities of these countries;and how to assess the goal of limiting the global temperature increase to 1.5℃and what constitutes an equitable carbon mitigation pathway for different types of *** countries and developing countries have drastically diverging views on carbon border adjustment measures for trade with developing countries proposed by several developed countries such as the European *** countries have demonstrated obvious intentions and actions designed to weaken and neglect the principle of“common but differentiated responsibilities”,to impose mitigation pressure on developing countries,to shift the responsibilities for emissions onto others,and to pass on the costs of *** maneuvering among different types of countries and interest groups has become increasingly *** response,China must maintain its strategic focus,adhere to the goals and principles established by the Paris Agreement,stick to its strategic positioning as a developing country,solidify strategic support from the developing world,and safeguard the legitimate rights and interests of developing *** played a conducive role in facilitating the Paris Agreement and has become an active participant,contributor,and leader in global climate *** must continue to fol

关键词： Global climate governance Equity and responsibility Developing country positioning 1.5℃temperature increase Carbon border adjustment measures

Reconstruction of HaSNPV with helicoverpa hormone receptor 3

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High Technology Letters 2007年第3期13卷 327-331页

作者：扈进冬 Shao Honglian Zhang Yubao Fu Qiang Sun Chen Wang Jinxing zhao xiaofan School of Life Sciences Shandong University Jinan 250100 P.R. China School of Meclicine Shangdong University Jinan 250100 P.R. China

In order to develop a more efficient virus for controlling the cotton bollworm Helicoverpa armigera, Helicoverpa hormone receptor 3 （HHR3）, which is involved in the ecdysteroid regulatory pathway, was used to genetically modify wild HaSNPV. HaSNPV-HHR3 budded virus and occlusion body virus were constructed in three steps： preparation of pFastBacHaPhpP10-HHR3 donor plasmid, transposition of HHR3 into the HaBacHZ8 bacmid, and transfection of HzAM1 cells to get HaSNPV-HHR3 ***3 was proved to be expressed in the HaSNPV-HHR3 virus infected HzAM1 cells by immunoblotting. Results of bioassay indicated that the body weight of the HaSNPV-HHR3 infected larvae was lower than the larvae infected with wild virus and uninfected normal larvae, which suggests that HaSNPV-HHR3 delayed larval growth.

关键词： lepidoptera noctuidae Helicoverpa armigera Helicoverpa armigera single nucleocapsid nucleopolyhedrovims (HaSNPV) Helicoverpa hormone receptor 3 (HHR3) genetical manipulation bioassay

1-MeV electron irradiation effects on InGaAsP/InGaAs double-junction solar cell and its component subcells

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Science China(Information Sciences) 2017年第12期60卷 117-119页

作者： xiaofan zhao Maliya HEINI Momin SAILAI Abuduwayiti AIERKEN Qi GUO Yudong LI Shulong LU Pan DAI Yuanyuan WU Ming TAN Key Laboratory of Functional Materials and Device for Special Environments Xinjiang Technical Institute of Physics & Chemistry Chinese Academy of Sciences Xinjiang Key Laboratory of Electronic Information Material and Device University of Chinese Academy of Sciences Key Laboratory of Nanodevices and Applications Suzhou Institute of Nano-Tech and Nano-Bionics

Solar cells(SCs)are used as the primary source of power in satellites and other space missions,and operate in a harsh radiation environment in *** demand for power has been increasing in various space *** applications require high radiation hardness and power-to-mass ratio for *** the past decade,high efficiency(30%at AM0,1 sun),lattice-matched,Ga In P/Ga As/Ge

关键词： MeV electron irradiation effects on InGaAsP/InGaAs double-junction solar cell and its component subcells As Ga

Precisemodification of the surface charge of antigen enhances vaccine immunogenicity

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The Innovation 2023年第4期4卷 83-90页

作者： Xiaodong Zai Zhiling Zhang Chuge Zhou Fangxin zhao Yue Zhang Xiaolin Wang Ruihua Li Yaohui Li xiaofan zhao Shuyi Wang Yilong Yang Ying Yin Jun Zhang Junjie Xu Wei Chen Institute of Biotechnology Academy of Military Medical SciencesBeijing 100071China College of pharmacy Nanjing University of Chinese MedicineNanjing 210023China School of Medicine Zhejiang UniversityHangzhou 310058China

Aluminum(alum)adjuvant is the most extensively used protein subunit vaccine adjuvant,and its effectiveness and safety have been widely *** surface charge of the antigen determines its electrostatic adsorption to alum adjuvant,which directly affects the immune efficacy of the protein *** our study,we precisely modified its surface charge by inserting charged amino acids into the flexible region of the SARS-CoV-2 receptorbinding domain(RBD),achieving electrostatic adsorption and a site-specific anchor between the immunogen and alum adjuvant.

关键词： charge electrostatic adsorption

Rational design of a single-component mRNA vaccine against orthopoxvirus and SARS-CoV-2

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Science China(Life Sciences) 2024年第6期67卷 1311-1313页

作者： Yilong Yang xiaofan zhao Yu Li Xiaodong Zai Xinyi Wang Yue Zhang Xiaolin Wang Peng Lv Jun Zhang Lihua Hou Junjie Xu Wei Chen Laboratory of Advanced Biotechnology Beijing Institute of BiotechnologyAcademy of Military Medical SciencesBeijing 100071China

Dear Editor,In the era of COVID-19,the prevalence of viruses from other families poses new threats to *** the eradication of smallpox in 1980,the global outbreak of monkeypox in 2022(Lum et al.,2022;Nuzzo et al.,2022)alerted that the re-emerging orthopoxvirus(OPXV)remained a persistent threat to global *** includes a number of viruses with a broad host range,including variola virus(VARV),monkeypox virus(MPXV),vaccinia virus(VACV).

关键词： vaccine Rational

Archaeological sites distribution and its physical environmental settings between ca 260-2.2 ka BP in Guizhou, Southwest China

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Journal of Geographical Sciences 2014年第3期24卷 526-538页

作者： LI Kaifeng ZHU Cheng JIANG Fengqing LI Bing WANG Xinhao CAO BO zhao xiaofan School of Geographic and Oceanographic Sciences Nanjing University Nanjing 210023 China Xinjiang Institute of Ecology and Geography CAS Urumqi 830011 China College of Hydrology and Water Resources Hohai University Nanjing 210098 China Guizhou Provincial Institute of Cultural Relics and Archaeology Guiyang 550004 China

This study presents an analysis of the spatial-temporal distribution of 230 ar- chaeological sites in Guizhou Province, Southwest China for three selected time periods from the Paleolithic Age to the Shang-Zhou Dynasties. The relationship between archaeological sites distribution and environmental changes is also discussed based on paleo-environmental proxies of 6480 and δ3C recorded in stalagmites from Southwest China. The results show that： in the Paleolithic Age （260-10 ka BP）, archaeological sites were concentrated in the central, northwestern and southwestern parts of Guizhou, where the high-altitudinal karst landforms with many natural caves suitable for human habitation are developed. In the Neo- lithic Age （10-3.6 ka BP）, most of human settlements were concentrated in the central, northwestern and southwestern parts, while, a fewer sites were found on river terraces in the southern and eastern parts, and the intermontane basins in the central and western Guizhou. During the Shang-Zhou Dynasties （3.6-2.2 ka BP）, the sites were mainly distributed in the intermontane basins and on river terraces, which were suitable for primitive aerial farming. The analysis of paleo-environmental proxies of 6180 and δ3C since 260 ka BP suggested that climate fluctuations had little imPact on human settlements in this study area. The distinct physical environment, especially the spatial patterns of karst landforms and arable land played an important role in the archaeological sites distribution of Guizhou.

关键词： Guizhou Province archaeological sites temporal-spatial distribution the Paleolithic Age to theShang-Zhon Dynasties physical environment