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Self-Bound Quantum Droplet with Internal Stripe Structure in One-Dimensional Spin-Orbit-Coupled Bose Gas

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Chinese Physics Letters 2021年第7期38卷 1-5页

作者： Yuncheng Xiong lan yin School of Physics Peking UniversityBeijing 100871China

We study the quantum-droplet state in a three-dimensional(3D)Bose gas in the presence of 1D spin-orbit coupling and Raman coupling,especially the stripe phase with density modulation,by numerically computing the ground state energy including the mean-field energy and Lee-Huang-Yang *** this droplet state,the stripe can exist in a wider range of Raman coupling,compared with the BEC-gas *** intriguingly,both spin-orbit coupling and Raman coupling strengths can be used to tune the droplet density.

关键词： density state coupling

Ferromagnetic transition of a spin-orbit coupled dipolar Fermi gas at finite temperature

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Chinese Physics B 2020年第11期29卷 131-134页

作者： Xue-Jing Feng lan yin School of Physics Peking UniversityBeijing 100871China

We study the ferromagnetic transition of a two-component homogeneous dipolar Fermi gas with 1D spin-orbit coupling(SOC) at finite *** ferromagnetic transition temperature is obtained as functions of dipolar constantλd,spin-orbit coupling constant λSOC and contact interaction constant λ*** increases monotonically with these three *** the ferromagnetic phase,the Fermi surfaces of different components can be deformed *** phase diagrams at finite temperature are obtained.

关键词： dipolar Fermi gas stoner model spin–orbit coupling

Phase Diagram of a Spin-Orbit Coupled Dipolar Fermi Gas at T=0K

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Chinese Physics Letters 2020年第2期37卷 1-5页

作者： Xue-Jing Feng lan yin School of Physics Peking UniversityBeijing 100871

We study a homogeneous two-component dipolar Fermi gas with 1D spin-orbit coupling(SOC)at zero temperature and find that the system undergoes a transition from the paramagnetic phase to the ferromagnetic phase under suitable dipolar interaction constantλd,SOC constantλSOC and contact interaction constant *** phase transition can be of either 1st order or 2nd order,depending on the *** the 2nd-order phase transition,the system is partially magnetized in the ferromagnetic *** SOC,the ferromagnetic phase can even exist in the absence of the contact *** increase in dipolar interaction,SOC strength,and contact interaction are all helpful to stabilize the ferromagnetic *** critical dipolar interaction strength at the phase transition can be reduced by the increase in SOC strength or contact *** diagrams of these systems are obtained.

关键词： interaction. state. ferromagnetic

Finding Deceptive Opinion Spam by Correcting the Mislabeled Instances

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Chinese Journal of Electronics 2015年第1期24卷 52-57页

作者： REN Yafeng JI Donghong yin lan ZHANG Hongbin School of Computer Wuhan University

Assessing the trustworthiness of reviews is a key in natural language processing and computational linguistics. Previous work mainly focuses on some heuristic strategies or simple supervised learning methods, which limit the performance of this task. This paper presents a new approach, from the viewpoint of correcting the mislabeled instances, to find deceptive opinion spam. Partition a dataset into several subsets, construct a classifier set for each subset and select the best one to evaluate the whole dataset. Error variables are defined to compute the probability that the instances have been mislabeled. The mislabeled instances are corrected based on two threshold schemes, ma jority and non-objection. The results display significant improvements in our method in contrast to the existing baselines.

关键词： Deceptive opinion spam Mislabeled instances Machine learning Computational linguistics.

Protective Effects of Anthocyanins Extracted from Vaccinium Uliginosum on 661W Cells Against Microwave-Induced Retinal Damage

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Chinese Journal of Integrative Medicine 2022年第7期28卷 620-626页

作者： yin lan FAN Si-jun ZHANG Mao-nian Department of Ophthalmology Chinese PLA General HospitalBeijing 100853China Department of Ophthalmology PLA Rocket Characteristic Medical CenterBeijing 100853China

Objective: To study the protective effect of anthocyanins extracted from Vaccinium Uliginosum(VU)on retinal 661W cells against microwave radiation induced retinal injury. Methods: 661W cells were divided into 6 groups, including control, model [661W cells radiated by microwave(30 mW/cm2, 1 h)] and VU groups [661W cells pretreated with anthocyanins extracted from VU(25, 50, 100 and 200 μg/mL, respectively) for 48 h, and radiated by microwave 30 mW/cm2, 1 h]. After treatment with different interventions, the cell apoptosis index(AI)was determined using Heochst staining;contents of malonaldehyde(MDA), glutataione(GSH), and activity of superoxide dismutase(SOD) were measured. mRNA expressions of nuclear factor erythroid 2-related factor 2(Nrf2) and heme oxygenase 1(HO-1) were detected by real time quantitative polymerase chain reaction, and the expression of HO-1 protein was examined by Western blot analysis. Nucleus and cytoplasm were separated and Nrf2 protein expression was further verified by Western blot analysis. Results: There was significant difference in AI among the groups(F=322.83, P<0.05). Compared with the control group, AI was significantly higher in the model group and was lower in 4 VU-pretreated groups(P<0.05). Linear regression analysis showed the decline of AI was in a dose-dependent manner with VU treatment(r=0.8419, P<0.05). The MDA and GSH contents of 661W cells in VU-treated groups were significantly lower than the model group(P<0.05). Compared with the model group, the SOD activity in the VU-treated groups(50, 100 and 200 μg/mL) was significantly higher(all P<0.05). The Nrf2 and HO-1 mRNA expressions were slightly increased after irradiation, and obviously increased in 100 μg/mL VU-treated group. After irradiation, the relative expressions of HO-1 and Nrf2 proteins in nucleus were slightly increased(P<0.05), and the changes in cytoplasm were not obvious,whereas it was significantly increased in both nucleus and cytoplasm in the VU treatment group

关键词： Vaccinium Uliginosum anthocyaninsm photoreceptor microwave apoptosis nuclear factor erythroid 2-related factor 2/heme oxygenase 1

Effect of amnion membrane transplantation on corneal neovascularization in 10 patients with alkali burn

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International Journal of Ophthalmology(English edition) 2011年第1期4卷 110-111页

作者： lan yin Yu-Li Pi Department of Ophthalmology the First Affiliated Hospital of General Hospital of PLA Beijing 100048 China

By observing clinical cases, we studied the curative effect of amnion membrane transplantation on decreasing corneal neovascularization (CNV). It was a non-randomized retrospective case-control study. Among 17 cases (21 eyes) of third-degree alkali burns from 2007 to 2010, 10 cases (12 eyes) were performed with amnion membrane transplantation operation, and others were not. Amnion membrane transplantation was performed at the 3rd day after burn in the treatment group. Areas of CNV in double groups were measured at the 14th day and 60th day after burn. Area of CNV in the treatment group was (66.207±7.251)mm2 at the 14th day after burn, and was 18.27% lower than that in the control group. Area of CNV in the treatment group was (120.046±13.812)mm2 at the 60th day after burn, and was 11.35% lower than that in the control group. There was both statistical significance (Plantation operation can inhibit the growth of corneal neovascularization induced by alkali burn.

关键词： amnion transplantation eye burn corneal neovascularization

A clinical analysis of acute pancreatitis in pregnancy

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Hepatobiliary & Pancreatic Diseases International 2017年第3期16卷 323-325页

作者： Ben-lan yin Xiao-Dong Fu Department of Obstetrics and Gynecology the Affiliated Hospital of Southwest Medical University Luzhou 646000 China

To the Editor： Acute pancreatitis in pregnancy （APIP） is one of the acute abdomen in pregnancy. Once the disease deterio- rated rapidly, it could be a serious threat to gravida and fetus. Although the incidence of APIP has been gradually increasing due to the life style change, it is still a rare disease and the mechanism is not clear. Patients with APIP were often misdiagnosed and not managed properly.

关键词： in is of or A clinical analysis of acute pancreatitis in pregnancy

Hydrodynamics of a Multi-Component Bosonic Superfluid

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Chinese Physics Letters 2023年第6期40卷 39-43页

作者：张帆尹澜 School of Physics Peking UniversityBeijing 100871China

We obtain the superfluid hydrodynamic equations of a multi-component Bose gas with short-ranged interactions at zero temperature under the local equilibrium assumption and show that the quantum pressure is generally present in the nonuniform case. Our approach can be extended to systems with long-range interactions such as dipole-dipole interactions by treating the Hartree energy properly. For a highly symmetric superfluid, we obtain the excitation spectrum and show that except for the density phonon, all other excitations are all *** implication of our results is discussed.

关键词： excitation dipole Hartree

Recent progress on biodegradable materials and transient electronics

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Bioactive Materials 2018年第3期3卷 322-333页

作者： Rongfeng Li Liu Wang Deying Kong lan yin School of Materials Science and Engineering Tsinghua UniversityBeijing 100084 China

Transient electronics(or biodegradable electronics)is an emerging technology whose key characteristic is an ability to dissolve,resorb,or physically disappear in physiological environments in a controlled *** applications include eco-friendly sensors,temporary biomedical implants,and datasecure *** electronics built with water-soluble,biocompatible active and passive materials can provide multifunctional operations for diagnostic and therapeutic purposes,such as monitoring intracranial pressure,identifying neural networks,assisting wound healing process,*** review summarizes the up-to-date materials strategies,manufacturing schemes,and device layouts for biodegradable electronics,and the outlook is discussed at the *** is expected that the translation of these materials and technologies into clinical settings could potentially provide vital tools that are beneficial for human healthcare.

关键词： Biodegradable electronics Transient electronics Biodegradable materials Silicon Metals