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Ground-state phases and spin textures of spin–orbit-coupled dipolar Bose–Einstein condensates in a rotating toroidal trap

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Chinese Physics B 2020年第11期29卷 446-456页

作者： Qing-Bo Wang Hui Yang Ning su Ling-Hua Wen Key Laboratory for Microstructural Material Physics of Hebei Province School of ScienceYanshan UniversityQinhuangdao 066004China School of Physics and Technology Tangshan Normal UniversityTangshan 063000China Department of Physics Xinzhou Teachers UniversityXinzhou 034000China

We investigate the ground-state phases and spin textures of spin-orbit-coupled dipolar pseudo-spin-1/2 Bose-Einstein condensates in a rotating two-dimensional toroidal *** combined effects of dipole-dipole interaction(DDI),spin-orbit coupling(SOC),rotation,and interatomic interactions on the ground-state structures and topological defects of the system are analyzed *** fixed SOC strength and rotation frequency,we provide a set of phase diagrams as a function of the DDI strength and the ratio between inter-and intra-species *** system can show rich quantum phases including a half-quantum vortex,symmetrical(asymmetrical)phase with quantum droplets(QDs),asymmetrical segregated phase with hidden vortices(ASH phase),annular condensates with giant vortices,triangular(square)vortex lattice with QDs,and criss-cross vortex string lattice,depending on the competition between DDI and contact *** given DDI strength and rotation frequency,the increase of the SOC strength leads to a structural phase transition from an ASH phase to a tetragonal vortex lattice then to a pentagonal vortex lattice and finally to a vortex necklace,which is also demonstrated by the momentum *** rotation,the interplay of DDI and SOC may result in the formation of a unique trumpet-shaped Bloch domain *** addition,the rotation effect is ***,the system supports exotic topological excitations,such as a half-skyrmion(meron)string,triangular skyrmion lattice,skyrmion-halfskyrmion lattice,skyrmion-meron cluster,skyrmion-meron layered necklace,skyrmion-giant-skyrmion necklace lattice,and half-skyrmion-half-antiskyrmion necklace.

关键词： Bose-Einstein condensate dipole-dipole interaction spin-orbit coupling topological defects

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Role of apolipoproteins,ABCA1 and LCAT in the biogenesis of normal and aberrant high density lipoproteins

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The Journal of Biomedical Research 2017年第6期31卷 471-485页

作者： Vassilis I.Zannis Shi su Panagiotis Fotakis Molecular Genetics Whitaker Cardiovascular InstituteBoston University School of MedicineBostonMA 02118USA Department University of Crete School of MedicineHeraklionCreteGreece

In this review, we focus on the pathway of biogenesis of HDL, the essential role of apoA-I, ATP binding cassette transporter A1（ABCA1）, and lecithin： cholesterol acyltransferase（LCAT） in the formation of plasma HDL; the generation of aberrant forms of HDL containing mutant apoA-I forms and the role of apoA-IV and apoE in the formation of distinct HDL subpopulations. The biogenesis of HDL requires functional interactions of the ABCA1 with apoA-I（and to a lesser extent with apoE and apoA-IV） and subsequent interactions of the nascent HDL species thus formed with LCAT. Mutations in apoA-I, ABCA1 and LCAT either prevent or impair the formation of HDL and may also affect the functionality of the HDL species formed. Emphasis is placed on three categories of apoA-I mutations. The first category describes a unique bio-engineered apoA-I mutation that disrupts interactions between apoA-I and ABCA1 and generates aberrant prep HDL subpopulations that cannot be converted efficiently to a subpopulations by LCAT. The second category describes natural and bio-engineered apoA-I mutations that generate preβ and small size a4 HDL subpopulations, and are associated with low plasma HDL levels. These phenotypes can be corrected by excess LCAT. The third category describes bio-engineered apoA-I mutations that induce hypertriglyceridemia that can be corrected by excess lipoprotein lipase and also have defective maturation of *** HDL phenotypes described here may serve in the future for diagnosis, prognoses and potential treatment of abnormalities that affect the biogenesis and functionality of HDL.

关键词： HDL biogenesis HDL phenotypes apolipoprotein A-I mutations apolipoprotein E apolipoprotein A-IV ATP-binding cassette transporter A1(ABCA1)

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The percentage of peripheral blood blasts on day 7 of induction chemotherapy predicts response to therapy and survival in patients with acute myeloid leukemia

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Chinese Medical Journal 2014年第2期127卷 290-293页

作者： Gao sujun Tan Yehui Liu Xiaoliang su Long yu Ping Han Wei Cui Jiuwei Li Wei Department of Hematology and Oncology First Hospital Bethune Medical College Jilin University Changchun Jilin 130021 China

Background Rapid clearance of peripheral blood blasts （PBBs） predicts complete remission （CR） and survival in patients with acute myeloid leukemia （AML）.We aimed to explore the correlation between induction therapy response,outcome,and the PBB *** Forty-six consecutive patients with de novo AML （excluding acute promyelocytic leukemia） were enrolled in this *** cytometry was performed to identify cells with a leukemia-associated aberrant immunophenotype in the initial bone marrow aspirate and in peripheral blood on day 7 of induction *** The PBB percentage on day 7 （D7PBBP） was significantly lower in patients who achieved CR （0.03% （0.0%,0.45%）） than in those who did not （10.85% （1.13%,19.38%）; u =-3.92,P 〈0.001）.The CR rate was significantly higher among patients with a D7PBBP of 〈0.945% （84.62%,22/26） than among those with a D7PBBP of 〉0.945% （25.0%,5/20;Х^2 =16.571,P 〈0.001）.D7PBBP was significantly correlated with overall survival （OS; r=-0.437,P=0.003） and relapsefree survival （RFS; r=-0.388,P=0.007）.OS and RFS were significantly higher in patients with a D7PBBP of 〈0.43% than in those with a D7PBBP of 〉0.43% （P 〈0.001 and P=0.039,respectively）.D7PBBP was also found to be an independent prognostic indicator in multivariate analysis for both OS （P=-0.036） and RFS （P=0.035）.Conclusion D7PBBP may be an important risk factor for the achievement of complete remission,for overall survival,and for relapse-free survival.

关键词： acute myeloid leukemia peripheral blood blasts induction therapy complete remission outcome

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Mechanically controlled FRET to achieve high-contrast fluorescence switching

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Science China Chemistry 2018年第12期61卷 1587-1593页

作者： Shenzhong Mo Lina Tan Bing Fang Zhen Wu Zhiqiang su Yantu Zhang Meizhen Yin State Key Laboratory of Chemical Resource Engineering Beijing Laboratory of Biomedical Materials Beijing University of Chemical Technology College of Chemistry & Chemical Engineering Yan'an University

Organic luminescent materials with the ability to reversibly switch the luminescence when subjected to external stimuli have attracted considerable interest in recent years. However, luminescent materials with mechanochromic and photochromic dualresponsive properties are rarely reported. Hererin, we designed and synthesized a molecule P1 with dipeptide as a spacer to link rhodamine B and spiropyran moieties. P1 exhibited efficient photochromic properties both in solution and solid state. Highcontrast independent fluorescence switch was also realized under the stimulus of external force. Moreover, two-step ring opening reaction and subsequent fluorescence resonance energy transfer process between the donor-acceptor pairs within one single molecule achieved successive color switch by mechanical control. Therefore, this behavior of P1 made it a promising candidate for high-contrast and sensitive optical recording and mechanical sensing system.

关键词： spiropyran rhodamine B photochromism mechanochromism fluorescence resonance energy transfer

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Bio-leaching effects of Leptospirillum ferriphilum on the surface chemical properties of pyrite

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Mining Science and Technology 2010年第2期20卷 286-291页

作者： GU, Guohua su, Lijun CHEN, Minglian suN, Xiaojun ZHOU, Hongbo school of mineral processing and bioengineering central south universitychangsha 410083china

Leptospirillum ferriphilum cultured using different energy sources(either soluble ferrous ion or pyrite) changed the surface properties of *** adsorption,zeta-potential,hydrophobicty,FT-IR spectra and surface morphology were *** of bacterial cells to the pyrite surface is a fast ***,the adsorption of cells grown in pyrite is greater than of cells grown in soluble ferrous *** Iso-Electric Point(IEP) of pyrite treated with *** approaches that of the cells *** contact angle of the pyrite surface was observed to decrease due to the surface formation of some hydrophilic substances during *** in pyrite surface properties after bacterial treatment support the idea that ferric ion plays an important role and that indirect bio-oxidation is the principal mechanism of pyrite bio-leaching.

关键词： Leptospirillum ferriphilum pyrite adsorption bio-leaching surface properties

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新型切削用冷风发生装置的研制及性能测试

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中国机械工程 2007年第10期18卷 1208-1211页

作者：苏宇何宁李亮徐胜南京航空航天大学南京210016

低温冷风切削是绿色切削加工技术中的一个重要分支,而向切削区供给低温冷风是研究和应用该项技术的前提。采用以半导体制冷为核心、结合蒸气压缩制冷的复合制冷方法研制了一种新型切削用冷风发生装置,并对其进行了性能测试。测试结果表... 详细信息

低温冷风切削是绿色切削加工技术中的一个重要分支,而向切削区供给低温冷风是研究和应用该项技术的前提。采用以半导体制冷为核心、结合蒸气压缩制冷的复合制冷方法研制了一种新型切削用冷风发生装置,并对其进行了性能测试。测试结果表明,该装置可向切削区提供-26℃的低温冷风,且制冷速度快、负荷可调性强、可靠性高、易于实现冷风温度的连续调节和精确控制,具有广阔的应用前景。

关键词：低温冷风切削冷风发生装置半导体制冷蒸气压缩制冷

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Correlation Between Energy Transfer Rate and Atomization Energy of Some Trinitro Aromatic Explosive Molecules

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Chinese Journal of Chemical Physics 2008年第3期21卷 250-254页

作者： su-hong Ge Xin-lu Cheng Zheng-lai Liu Xiang-dong Yang Fang-fang Dong Department of Physics Hexi University Zhangye 734000 China Institute of Atomic and Molecular Physics Sichuan University Chengdu 610065 China

An assumptive theoretical relationship is suggested to describe the property of molecular atomization energy and energy transfer rate in the initiation of explosions. To investigate the relationship between atomization energy and energy transfer rate, the number of doorway modes of explosives is estimated by the theory of Dlott and Fayer in which the rate is proportional to the number of normal mode vibrations. It was evaluated frequencies of normal mode vibrations of eight molecules by means of density functional theory （DFT） at the b3p86/6-31G（d,p） level. It is found that the number of doorway modes shows a linear correlation to the atomization energies of the molecules, which were also calculated by means of the same method. A mechanism of this correlation is discussed. It is also noted that in those explosives with similar molecular structure and molecular weight, the correlation between the atomization energy and the number of doorway modes is higher.

关键词： Secondary explosive Atomization energy Normal mode vibration Doorway region

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Advanced forecasting of career choices for college students based on campus big data

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Frontiers of Computer Science 2018年第3期12卷 494-503页

作者： Min NIE Lei YANG Jun suN Han su Hu XIA Defu LIAN Kai YAN Big Data Research Center University of Electronic Science and Technology of China Chengdu 611731 China Information Center University of Electronic Science and Technology of China Chengdu 611731 China

Career indecision is a difficult obstacle confronting adolescents. Traditional vocational assessment research measures it by means of questionnaires and diagnoses the potential sources of career indecision. Based on the diagnostic outcomes, career counselors develop treatment plans tailored to students. However, because of personal motives and the architecture of the mind, it may be difficult for students to know themselves, and the outcome of questionnaires may not fully reflect their inner states and statuses. Selfperception theory suggests that students＇ behavior could be used as a clue for inference. Thus, we proposed a data-driven framework for forecasting student career choice upon graduation based on their behavior in and around the campus, thereby playing an important role in supporting career counseling and career guidance. By evaluating on 10M behavior data of over four thousand students, we show the potential of this framework for this functionality.

关键词： campus big data career identity career choiceprediction self-knowledge

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Adaptation of microbial communities to multiple stressors associated with litter decomposition of Pterocarya stenoptera

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Journal of Environmental Sciences 2014年第5期26卷 1001-1013页

作者： Gaozhong Pu Jingjing Tong Aimeng su Xu Ma Jingjing Du Yanna Lv Xingjun Tian School of Life Science Nanjing University Guangxi Institute of Botany Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences

To understand the further impacts of multiple stressors in freshwater, we investigated the effects of heavy metal （HM, Cu and Zn） and nutrient enrichments （nitrogen and phosphorus, NP） on microbial decomposition of Pterocarya stenoptera litter and the associated extracellular enzyme activities and microbial biomass with microcosms. Results showed that the decomposition rates were slower in the polluted stream waters than those in the unpolluted ones, which corresponded to lower microbial biomass and integrated enzyme activities of cellulose and ^-glucosidase. The decomposition rates were accelerated at low HM level, which was associated with the stimulated enzyme activities of hydrolytic enzymes or was stimulated by both NP levels in polluted stream waters. In particular, the hydrolase enzyme activities of microbial communities in polluted stream waters were stimulated by low HM level, suggesting that low HM level-stimulated litter decomposition may be due to the increased enzymatic activities. When microbial communities were exposed to HM and NP simultaneously, the inhibitory effect （in unpolluted stream waters） or the stimulated effect （in polluted stream waters） of low HM concentration was enhanced and attenuated, respectively, which suggests that the NP antagonistic effect against HM toxicity on litter decomposition may contribute to the litter- associated extracellular enzyme activities. These results suggest that the may have antagonistic effects on stream ecosystem functioning. of HM and NP

关键词： leaf decomposition heavy metal and nutrient mixture extracellular enzyme activity community adaptation microbial community

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Oceanic plate subduction history in the western Pacific Ocean:Constraint from late Mesozoic evolution of the Tan-Lu Fault Zone

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Science China Earth Sciences 2018年第4期61卷 386-405页

作者： Guang ZHU Cheng LIU Chengchuan GU Shuai ZHANG yunjian LI Nan su Shiye XIAO School of Resource and Environmental Engineering Hefei University of Technology

The NE-to NNE-striking Tan-Lu Fault Zone(TLFZ) is the largest fault zone in East China, and a typical representative for the circum-Pacific tectonics. Its late Mesozoic evolution resulted from subduction of the Paleo-Pacific Plate,and can be used for indication to the subduction history. The TLFZ reactivated at the end of Middle Jurassic since its origination in Middle Triassic. This phase of sinistral motion can only be recognized along the eastern edge of the Dabie-sulu orogenis,and indicates initiation of the Paleo-Pacific(Izanagi) Plate subduction beneath the East China continent. After the Late Jurassic standstill, the fault zone experienced intense sinistral faulting again at the beginning of Early Cretaceous under N-S compression that resulted from the NNW-ward, low-angle, high-speed subduction of the Izanagi Plate. It turned into normal faulting in the rest of Early Cretaceous, which was simultaneous with the peak destruction of the North China Craton caused by backarc extension that resulted from rollback of the subducting Izanagi Plate. The TLFZ was subjected to sinistral, transpressive displacement again at the end of Early Cretaceous. This shortening event led to termination of the North China Craton destruction. The fault zone suffered local normal faulting in Late Cretaceous due to the far-field, weak backarc extension. The late Mesozoic evolution of the TLFZ show repeated alternation between the transpressive strike-slip motion and normal faulting. Each of the sinistral faulting event took place in a relatively short period whereas every normal faulting event lasted in a longer period, which are related to the subduction way and history of the Paleo-Pacific Plates.

关键词： Tan-Lu Fault Zone Sinistral displacement Extensional activity Izanagi Plate Pacific plate

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