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Properties of One-Dimensional Highly Polarized Fermi Gases

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Chinese Physics Letters 2018年第11期35卷 6-10页

作者： ya-dong song Xiao-Ming Cai State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics Wuhan Institute of Physics and MathematicsChinese Academy of SciencesWuhan 430071 School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049

Using both the exact Bethe ansatz method and the variational method, we study properties of the one-dimensional Fermi polaron. We focus on the binding energy, effective mass, momentum distributions, Tan contact and correlation functions. As the attraction increases, the impurity is more tightly bound and correlated with the surrounding particles, and the size of formed polaron decreases. In addition, compared with the Bethe ansatz method, the variational method is totally qualified to study the one-dimensional Fermi polaron. The intrinsic reason is that the number of particle-hole excitations in a Fermi sea, caused by a single impurity, is always rather small. The variational method can be well extended to other impurity systems.

关键词： Properties of One-Dimensional Highly Polarized Fermi Gases As

Energy and Protein Requirements for 0-to 4-Week-Age Gushi Chicks

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Agricultural Sciences in China 2002年第11期1卷 1271-1276页

作者： KANG Xiang-tao, TIAN ya-dong and song Su-fang(Henan Agricultural University, Zhengzhou 450002 , P.R.China Zhengzhou Animal Husbandry Engineering Academy , Zhengzhou 450008 , P. R. China)

In this experiment, 540 male and female chicks of 1-day-age were selected respectively and reared separately. 3×3 factorial experiment was designed. Gushi chicks were fed with nine diets under different metabolizable energy (ME) and crude protein (CP). Effects of different diets on the performances and carcass ingredients of 0-to 4-week-age Gushi chicks were studied by rearing, comparative slaughter and metabolism experiments. Based on the results of three experiments, ME intake per kilogram metabolic weight was regarded as dependent variable (Y) ,and its corresponding net energy (NE) deposition per kilogram metabolic weight was regarded as independent variable (X) , respectively. Lineal regressive analysis was made according to the mathematic model: Y=a+bX. Maintenance ME( MEm) and the converted coefficient from net energy for gain( NEg) to ME for gain( MEg) were found out, then ME requirement was divided into MEm+ MEg, which is ME=359.14 W0.75+ 10.47△W; CP intake and corresponding metabolic weight were regarded as dependent variable and independent variable respectively, and then regressive analysis was made. The result was CP=0. 57 + 8. 21 W0.7S. Consequently, average daily gain (ADG), average daily feed intake and metabolic weight were put into the regressive equations, and then ME and CP requirements for 0- to 4-week-age Gushi chicks were obtained, 12.38 MJ kg-1 and 20.13%, respectively, the ratio of CP to ME was 16. 26 g MJ-1.

关键词： Gushi chick Metabolizable energy Crude protein Requirement

基于外部性理论的高等教育财政支出研究——日本的经验及启示

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特区经济 2008年第3期 102-103页

作者：张少杰郭雅娴董碧松吉林大学管理学院吉林长春130025

高等教育具有正外部性,政府应该通过财政补贴进行矫正,以促进高等教育资源优化配置。政府对高等教育的财政支出比例的确定应该遵循专业差别原则和动态调整原则。日本政府在高等教育财政支出方面的经验值得我国借鉴。

关键词：教育资源资源配置高等教育外部性

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云南含笑果实中倍半萜类化学成分研究

中草药 2017年第13期48卷 2608-2613页

作者：丁林芬程彬晏通郭亚东宋流东王海垠吴兴德昆明医科大学药学院云南省天然药物药理重点实验室云南昆明650500 中国科学院昆明植物研究所植物化学与西部植物资源持续利用国家重点实验室云南昆明650201

目的对云南含笑Michelia yunnanensis果实的化学成分进行研究。方法采用硅胶、Sephadex LH-20等多种色谱技术进行分离纯化,根据波谱数据鉴定化合物的结构。结果从云南含笑果实甲醇提取物中分离得到12个化合物,分别鉴定为13-甲氧基-11β,... 详细信息

目的对云南含笑Michelia yunnanensis果实的化学成分进行研究。方法采用硅胶、Sephadex LH-20等多种色谱技术进行分离纯化,根据波谱数据鉴定化合物的结构。结果从云南含笑果实甲醇提取物中分离得到12个化合物,分别鉴定为13-甲氧基-11β,13-二氢木香烃内酯(1)、毛叶含笑内酯(2)、北美鹅掌楸内酯(3)、鹅掌楸内酯(4)、木香烃内酯(5)、小白菊内酯(6)、11β,13-二氢小白菊内酯(7)、4α,5β-环氧-13-甲氧基-11βH-吉玛烷-1(10)-烯-12,6α-内酯(8)、长莎草醇C(9)、香橙烷-4β,10α-二醇(10)、9-氧代橙花椒醇(11)、11,13-去氢台湾含笑内酯(12)。结论化合物1为新天然产物,并且首次全面报道化合物1和2的1H-NMR、13C-NMR数据。除化合物6,其余化合物均为首次从该植物中分离得到。

关键词：云南含笑毛叶含笑内酯木香烃内酯小白菊内酯 9-氧代橙花椒醇 11,13-去氢台湾含笑内酯

Multilevel analysis of the central-peripheral-target organ pathway:contributing to recovery after peripheral nerve injury

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Neural Regeneration Research 2025年第10期20卷 2807-2822页

作者： Xizi song Ruixin Li Xiaolei Chu Qi Li Ruihua Li Qingwen Li Kai-Yu Tong Xiaosong Gu dong Ming Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Haihe Laboratory of Brain-Machine Interface and Human-Machine Fusion TianjinChina Department of Rehabilitation Tianjin University Tianjin HospitalTianjinChina Department of Hand Microsurgery Tianjin University Tianjin HospitalTianjinChina School of Exercise and Health Tianjin University of SportTianjinChina Department of Biomedical Engineering the Chinese University of Hong KongHong Kong Special Administrative RegionChina

Peripheral nerve injury is a common neurological condition that often leads to severe functional limitations and *** on the pathogenesis of peripheral nerve injury has focused on pathological changes at individual injury sites,neglecting multilevel pathological analysis of the overall nervous system and target *** has led to restrictions on current therapeutic *** this paper,we first summarize the potential mechanisms of peripheral nerve injury from a holistic perspective,covering the central nervous system,peripheral nervous system,and target *** peripheral nerve injury,the cortical plasticity of the brain is altered due to damage to and regeneration of peripheral nerves;changes such as neuronal apoptosis and axonal demyelination occur in the spinal *** nerve will undergo axonal regeneration,activation of Schwann cells,inflammatory response,and vascular system regeneration at the injury *** damage to target organs can occur,including skeletal muscle atrophy and sensory receptor *** then provide a brief review of the research advances in therapeutic approaches to peripheral nerve *** main current treatments are conducted passively and include physical factor rehabilitation,pharmacological treatments,cell-based therapies,and physical ***,most treatments only partially address the problem and cannot complete the systematic recovery of the entire central nervous system-peripheral nervous system-target organ ***,we should further explore multilevel treatment options that produce effective,long-lasting results,perhaps requiring a combination of passive(traditional)and active(novel)treatment methods to stimulate rehabilitation at the central-peripheral-target organ levels to achieve better functional recovery.

关键词： central nervous system central peripheral target organ multilevel pathological analysis nerve regeneration peripheral nerve injury peripheral nervous system target organs therapeutic approach

Impacts of the annual cycle of background SST in the tropical Pacific on the phase and amplitude of ENSO

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Atmospheric and Oceanic Science Letters 2025年第1期18卷 12-17页

作者： song Jiang Congwen Zhu Ning Jiang State Key Laboratory of Severe Weather(LASW) Chinese Academy of Meteorological SciencesBeijingChina College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijingChina

The dominant annual cycle of sea surface temperature(SST)in the tropical Pacific exhibits an antisymmetric mode,which explains 83.4%total variance,and serves as a background of El Niño-Southern Oscillation(ENSO).However,there is no consensus yet on its anomalous impacts on the phase and amplitude of *** on data during 1982-2022,results show that anomalies of the antisymmetric mode can affect the evolution of ENSO on the interannual scale via Bjerknes feedback,in which the positive(negative)phase of the antisymmetric mode can strengthen El Niño(La Niña)in boreal winter via an earlier(delayed)seasonal cycle transition and larger(smaller)annual *** magnitude of the SST anomalies in the equatorial eastern Pacific can reach more than±0.3◦C,regulated by the changes in the antisymmetric mode based on random sensitivity *** reveal the spatial pattern of the annual cycle associated with the seasonal phase-locking of ENSO evolution and provide new insight into the impact of the annual cycle of background SST on ENSO,which possibly carries important implications for forecasting ENSO.

关键词： Annual cycle SST anomaly Antisymmetric mode ENSO

A Flexible Smart Healthcare Platform Conjugated with Artificial Epidermis Assembled by Three‑Dimensionally Conductive MOF Network for Gas and Pressure Sensing

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Nano-Micro Letters 2025年第2期17卷 601-620页

作者： Qingqing Zhou Qihang Ding Zixun Geng Chencheng Hu Long yang Zitong Kan Biao dong Miae Won Hongwei song Lin Xu Jong Seung Kim State Key Laboratory of Integrated Optoelectronics College of Electronic Science and EngineeringJilin UniversityChangchun 130012People’s Republic of China Department of Chemistry Korea UniversitySeoul 02841Republic of Korea TheranoChem Incorporation Seoul 02856Republic of Korea

The rising flexible and intelligent electronics greatly facilitate the noninvasive and timely tracking of physiological information in telemedicine *** building bionic-sensitive moieties is vital for designing efficient electronic skin with advanced cognitive functionalities to pluralistically capture external ***,realistic mimesis,both in the skin’s three-dimensional interlocked hierarchical structures and synchronous encoding multistimuli information capacities,remains a challenging yet vital need for simplifying the design of flexible logic ***,we construct an artificial epidermal device by in situ growing Cu_(3)(HHTP)_(2) particles onto the hollow spherical Ti_(3)C_(2)T_(x) surface,aiming to concurrently emulate the spinous and granular layers of the skin’s *** bionic Ti_(3)C_(2)T_(x)@Cu_(3)(HHTP)_(2) exhibits independent NO_(2) and pressure response,as well as novel functionalities such as acoustic signature perception and Morse code-encrypted message ***,a wearable alarming system with a mobile application terminal is self-developed by integrating the bimodular senor into flexible printed *** system can assess risk factors related with asthmatic,such as stimulation of external NO_(2) gas,abnormal expiratory behavior and exertion degrees of fingers,achieving a recognition accuracy of 97.6%as assisted by a machine learning *** work provides a feasible routine to develop intelligent multifunctional healthcare equipment for burgeoning transformative telemedicine diagnosis.

关键词： Ti_(3)C_(2)T_(x)@Cu_(3)(HHTP)_(2)composites NO_(2)/pressure flexible sensors Health-monitoring Machine learning

第十五届粳稻发展论坛之17'全国优良食味粳稻品评结果报告

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北方水稻 2017年第4期47卷 1-5页

作者：孙雅君贾东宋双王丹李明于亚辉辽宁省盐碱地利用研究所辽宁盘锦124010

北方稻作协会组织24位专业品评员,对来自我国粳稻产区的28个粳稻品种(品系)进行品评,评选出特等奖1个、一等奖6个、二等奖8个、三等奖6个,优秀奖7个。从品评结果分析来看,参评粳稻品种(品系)整体食味水平普遍较高,表明我国优良食味粳稻... 详细信息

北方稻作协会组织24位专业品评员,对来自我国粳稻产区的28个粳稻品种(品系)进行品评,评选出特等奖1个、一等奖6个、二等奖8个、三等奖6个,优秀奖7个。从品评结果分析来看,参评粳稻品种(品系)整体食味水平普遍较高,表明我国优良食味粳稻研究成果显著。同时,专业品评员能够科学、公正、可靠地评价粳稻食味,品评结果得到参评单位的一致认可,所以应大力加强品评员队伍建设,以促进我国优良食味水稻的快速发展。

关键词：全国粳稻食味品评结果显著

Constraints on holographic QCD phase transitions from PTA observations

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 71-78页

作者： song He Li Li Sai Wang Shao-Jiang Wang Center for Theoretical Physics and College of Physics Jilin University School of Physical Science and Technology Ningbo University Max Planck Institute for Gravitational Physics (Albert Einstein Institute) CAS Key Laboratory of Theoretical Physics Institute of Theoretical Physics Chinese Academy of Sciences School of Fundamental Physics and Mathematical Sciences Hangzhou Institute for Advanced StudyUniversity of Chinese Academy of Sciences (UCAS) School of Physical Sciences University of Chinese Academy of Sciences (UCAS) Theoretical Physics Division Institute of High Energy Physics Chinese Academy of Sciences

The underlying physics of QCD phase transition in the early Universe remains largely unknown due to its strong-coupling nature during the quark-gluon plasma/hadron gas transition, yet a holographic model has been proposed to quantitatively fit the lattice QCD data while with its duration of the first-order phase transition(FoPT) left undetermined. At specific baryon chemical potential, the first-order QCD phase transition agrees with the observational constraint of baryon asymmetry. It, therefore, provides a scenario for phase transition gravitational waves(GWs) within the standard model of particle physics. If these background GWs could contribute dominantly to the recently claimed common-spectrum red noise from pulsar timing array(PTA) observations, the duration of this FoPT can be well constrained, and the associated primordial black holes are still allowed by current observations.

关键词： pulsar timing array QCD phase transition gravitational waves primordial black holes