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一维自旋轨道耦合费米气体的研究进展

物理学进展 2024年第4期44卷 157-182页

作者：蔡启鹏张伟伟林良伟许益广陈紫轩王小生于海鹏方小红张义财刘超飞江西理工大学理学院赣州341000 广州大学物理与电子工程学院广州510006

在超冷费米气体中,通过调节自旋轨道耦合的强度,使其与费米能量相当,可以产生许多新奇的量子效应。在过去几十年里,学者对于一维自旋轨道耦合诱导的费米气体进行了大量的理论和实验研究。与高维自旋轨道耦合相比,一维自旋轨道耦合虽然... 详细信息

在超冷费米气体中,通过调节自旋轨道耦合的强度,使其与费米能量相当,可以产生许多新奇的量子效应。在过去几十年里,学者对于一维自旋轨道耦合诱导的费米气体进行了大量的理论和实验研究。与高维自旋轨道耦合相比,一维自旋轨道耦合虽然显得比较简单,但它是实验上探索基本量子物理现象的最可靠和最易行的工具。本文系统地整理了理论工作中一维自旋轨道耦合下费米气体的有趣物理现象。包括动力学振荡和孤子效应、拓扑超流、Majorana边缘态、铁磁相变和量子相位方面的理论研究。在实验中,如何实现自旋轨道耦合并且观测奇异现象,是研究的热点和难点问题。我们梳理了几种常见的实验方案和检测方法,最后对一维自旋轨道耦合诱导下费米气体方面的研究进行展望。一维自旋轨道耦合可以为初学者提供借鉴,有助于研究自旋轨道耦合调控的多体系统。本文期望为冷原子物理初学者深入理解自旋轨道耦合下多体系统的物理机制提供参考。

关键词：自旋轨道耦合费米气体动力学振荡孤子拓扑超流 Majorana边缘态铁磁相变量子相位

Ultrasound-guided microwave ablation for abdominal wall metastatic tumors: A preliminary study

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World Journal of Gastroenterology 2012年第23期18卷 3008-3014页

作者： cai qi Xiao-Ling Yu Ping Liang Zhi-Gang Cheng Fang-Yi Liu Zhi-Yu Han Jie Yu Department of IntercentJonal Ul-trasound The General Hospital of Chinese People's Liberation ArmyBeijing 100853China

AIM: To evaluate the feasibility, safety and efficacy of ultrasound-guided microwave (MW) ablation for abdominal wall metastatic tumors. METHODS: From August 2007 to December 2010, a total of 11 patients with 23 abdominal wall nodules (diameter 2.59 cm ± 1.11 cm, range 1.3 cm to 5.0 cm) were treated with MW ablation. One antenna was inserted into the center of tumors less than 1.7 cm, and multiple antennae were inserted simultaneously into tumors 1.7 cm or larger. A 21 gauge thermocouple was inserted near important organs which required protection (such as bowel or gallbladder) for real-time temperature monitoring during MW ablation. Treatment outcome was observed by contrast-enhanced ultrasound and magnetic resonance imaging (MRI) [or computed tomography (CT)] during follow-up. RESULTS: MW ablation was well tolerated by all patients. Six patients with 11 nodules had 1 thermocouple inserted near important organs for real-time temperature monitoring and the maximum temperature was 56 ℃. Major complications included mild pain (54.5%), post-ablation fever (100%) and abdominal wall edema (25%). All 23 tumors (100%) in this group were completely ablated, and no residual tumor or local recurrence was observed at a median follow-up of 13 mo (range 1 to 32 mo). The ablation zone was well defined on contrast-enhanced imaging (contrast-enhanced CT, MRI and/or contrast-enhanced ultrasound) and gradually shrank with time. CONCLUSION: Ultrasound-guided MW ablation may be a feasible, safe and effective treatment for abdominal wall metastatic tumors in selected patients.

关键词： Abdominal wall Microwave ablation Neo-plasm metastasis Thermal ablation therapy Ultraso-nography

Discovery and intensity characterization of TDP and PRP based on temperature evolution history during the pyrolysis for large biomass particle

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Carbon Resources Conversion 2024年第3期7卷 41-50页

作者： Rui Chen Jun cai Xinli Li Xiaobin qi State Key Laboratory of Coal Conversion Institute of Engineering ThermophysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences No.19 Yuquan RoadShijingshan DistrictBeijing 100049China Shanxi Engineering Research Center of Coal Clean Efficient Combustion and GasificationNo.1619 Yunzhou StreetDatong CityShanxi Province 037305China Shanxi Key Laboratory of Coal Flexible Combustion and Thermal Conversion No.1619 Yunzhou StreetDatong CityShanxi Province 037305China

The pyrolysis behaviors and temperature evolution history of lignocellulosic biomass(Beech,BH)were characterized using a novel pyrolysis *** simulation results were validated through corresponding experimental *** on the simulation results,two distinct peaks were observed in the temperature difference between the surface and center(TDSC)curve,namely the thermal disturbance peak(TDP)and the pyrolysis reaction peak(PRP).The presence of TDP and PRP was confirmed by examining the heat flux ratio between the pyrolysis rate and the temperature rise ***,the results indicated that three factors,namely heating temperature,particle size,and pyrolysis rate,influenced the relative intensity between TDP and *** changing the values of each impact factor,conditions where TDP owns the same height with PRP were obtained under different working *** findings have led to the development of a dimensionless number,naming the pyrolysis-heating surface-center number(PHSC number).This number could provide a comprehensive indication of the collective impact of the aforementioned factors when TDP and PRP exhibit equal peak heights.

关键词： DAEM Large biomass particle Pyrolysis Temperature distribution Dimensionless number

Method for the multi-view estimation of fish mass using a two-stage neural network with edge-sensitive module

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International Journal of Agricultural and Biological Engineering 2024年第3期17卷 222-229页

作者： Zeyu Jiao Yingjie cai qi Zhang Zhenyu Zhong Guangdong Key Laboratory of Modern Control Technology Institute of Intelligent ManufacturingGuangdong Academy of SciencesGuangzhou 510070China Department of Electronic Engineering The Chinese University of Hong KongHong Kong 999077China College of Economics and Management Northwest A&F UniversityYangling 712100ShaanxiChina

The estimation of fish mass is one of the most basic and important tasks in *** the mass of fish at different growth stages is of great significance for feeding,monitoring the health status of fish,and making breeding plans to increase *** existing estimation methods for fish mass often stay in the 2D plane,and it is difficult to obtain the 3D information on fish,which will lead to the *** solve this problem,a multi-view method was proposed to obtain the 3D information of fish and predict the mass of fish through a two-stage neural network with an edge-sensitive *** the first stage,the side-and downward-view images of the fish and some 3D information,such as side area,top area,length,deflection angle,and pitch angle,were captured to estimate the size of the fish through two vertically placed *** the area of the fish at different views was estimated accurately through the pre-trained image segmentation neural network with an edgesensitive *** the second stage,a fully connected neural network was constructed to regress the fish mass based on the 3D information obtained in the previous *** experimental results indicate that the proposed method can accurately estimate the fish mass and outperform the existing estimation methods.

关键词： fish mass multi-view estimation two-stage neural network edge-sensitive module image segmentation

Dual-property blue and red emission carbon dots for Fe(Ⅲ)ions detection and cellular imaging

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Rare Metals 2021年第7期40卷 1957-1965页

作者： Yin-Long Xu Rui-Xue Mo cai-Yu qi Zeng Ren Xiu-Zhi Jia Zi-Gui Kan Cao-Long Li Fei Wang Key Laboratory of Biomedical Functional Materials School of Basic ScienceChina Pharmaceutical UniversityNanjing 211198China Tibetan Medicine Research Institute Tibetan Traditional Medical CollegeLasa 850000China School of Basic Medical Science Harbin Medical UniversityHarbin 150081China

The excitation wavelength-dependent and-independent emissions are two crucial fluorescent properties of carbon dots(CDs).However,CDs reported till date exhibit only one of these properties,which limits their practical ***,dual-property carbon dots(DCDs)with both the excitation wavelength-dependent and-independent emissions were synthesized via a facile onestep solvothermal method using 4-(2-pyridylazo)-resorcinol as the carbon *** multi-functional applications of the resulting DCDs were also *** asprepared DCDs exhibited not only excellent monodispersity,high photostability,and storage stability,but also low toxicity,good biocompatibility,and cellular bioimaging *** addition,the DCDs exhibited excitation-dependent emission photoluminescence under low excitation *** DCDs exhibited good Fe3+detection by quenching the blue emission fluorescence and showed a relatively low Fe3+detection limit of 0.067 lmol·L-1 based on three times signal-to-noise criteria(R2=0.99).Furthermore,the DCDs showed excitation-independent emission at low excitation wavelengths and exhibited red emission at about 598 nm to avoid damage to the *** results demonstrate the excellent bioimaging properties of the *** to their dual PL properties,the as-prepared DCDs exhibited multi-functional applications:Fe3+detection and A549 cell *** results will be helpful in developing novel CDs for applications in various fields.

关键词： Carbon dots Solvothermal Dual properties Fe3+ions detection Bioimaging

A survey of geothermal power generation combined with renewable energy for low carbon emissions

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Clean Energy 2024年第3期8卷 138-146页

作者： Xuyang Liu Dongsheng cai Chiagoziem CUkwuoma qi Huang Olusola Bamisile College of Nuclear Technology and Automation Engineering Chengdu University of TechnologyChengduSichuan P.R.China Electrical Engineering Department Southwest University of Science and TechnologyMaiyangSichuan P.R.China

At present,industrial development is heavily dependent on traditional fossil energy,which has had an increasingly serious impact on the *** and renewable energy has received extensive attention and its proportion in daily life has gradually *** a clean and renewable energy source that is not affected by changes in weather and seasons,geothermal energy has developed rapidly in recent years and has received increasing *** to reports,the total installed capacity of geothermal power generation in the world in 2020 was 15950 MW-an increase of~27%over *** the end of 2019,the total installed capacity for global geothermal direct use was 107727 MW-an increase of 52.0%compared with 2015;the total annual energy use was 1020887 TJ(283580 GWh)-an increase of 72.3%over *** the investigation of geothermal power generation technology in recent years,the characteristics and shortcomings of various power generation methods are *** the same time,this review analyzes the characteristics of geothermal energy and other renewable-energy(solar energy,water energy)coupling power generation,and analyzes the principles and characteristics of geothermal energy and various new-energy coupling power generation *** investigation and analysis,this review provides a complete understanding of various geothermal power generation technologies and provides insights into the future development direction.

关键词： geothermal power generation solar energy water energy combined power generation

盐酸米诺环素软膏对轻中度慢性牙周炎正畸患者的疗效及安全性的影响

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中华保健医学杂志 2024年第4期26卷 495-498页

作者：蔡齐任昊天王彦蒽蔚一博徐晓刚海军军医大学第一附属医院口腔科上海200433

目的探究轻中度慢性牙周炎正畸患者应用盐酸米诺环素软膏治疗的临床疗效。方法选取2020年1月~2023年4月海军军医大学第一附属医院收治的70例轻中度慢性牙周炎正畸患者,根据随机数表法分为对照组(牙周基础治疗+西帕依固龈液含漱,n=35)... 详细信息

目的探究轻中度慢性牙周炎正畸患者应用盐酸米诺环素软膏治疗的临床疗效。方法选取2020年1月~2023年4月海军军医大学第一附属医院收治的70例轻中度慢性牙周炎正畸患者,根据随机数表法分为对照组(牙周基础治疗+西帕依固龈液含漱,n=35)和观察组(牙周基础+盐酸米诺环素软膏,n=35)。连续6个月随访观察,对比两组临床疗效、首次疗程后两组患者牙周指标[龈沟出血指数(SBI)、牙周探针深度(PD)、临床附着丧失(CAL)、龈沟液量(GCF)]、牙周致病菌[福塞斯坦纳菌(Tf)、中间普氏菌(Pi)、卟啉单胞菌(Pg)、齿垢密螺旋体(Td)]及血清炎性因子[C反应蛋白(CRP)、肿瘤坏死因子-α(TNF-α)、γ-干扰素(IFN-γ)、白细胞介素-6(IL-6)]表达水平的变化,统计两组用药期间不良反应发生情况。结果观察组总有效率为85.71%、临床治愈率为60.00%,对照组分别为71.43%、40.00%,观察组临床疗效较对照组良好,差异有统计学意义(Z=-2.065,P 0.05)。结论轻中度慢性牙周炎正畸患者使用盐酸米诺环素软膏治疗,能够改善牙周情况,降低炎性因子和牙周致病菌水平,临床疗效显著。

关键词：慢性牙周炎正畸盐酸米诺环素软膏西帕依固龈液

Effects of steep-axis incision on corneal curvature in onehanded phacoemulsification

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International Journal of Ophthalmology(English edition) 2019年第8期12卷 1277-1282页

作者： Pan-Pan Li Ye-Meng Huang qi cai Li-Li Huang Yu Song Huai-Jin Guan Department of Ophthalmology Nantong City No.1People’sHospital and Second Affiliated Hospital of Nantong UniversityNantong226000Jiangsu ProvinceChina Department of Ophthalmology Affiliated Hospital of NantongUniversityNantong226000Jiangsu ProvinceChina

AIM: To examine the effects of one-handed phacoemulsification with steep-axis incision on corneal curvature and analyze surgically induced astigmatism(SIA) on the true net power, anterior and posterior corneal surfaces. METHODS: Patients with cataracts underwent onehanded phacoemulsification with a 2.4-mm steep-axis of clear corneal incision(CCI) based on true net power. CCI was created under the guidance of Verion. Central corneal thickness(CCT), keratometry readings of the true net power and anterior and posterior corneal surface were obtained using Pentacam. Biometry, such as axial length, anterior chamber depth(ACD) and white-to-white(WTW) were performed using Lenstar pre-and 3 mo postoperatively. RESULTS: The study evaluated 68 eyes of 65 patients. The mean age was 65.93±9.40 y;CCT was 529.21±37.40 μm;WTW was 11.59±0.35 mm. Regarding true net power, keratometric value at the flattest corneal meridian for the 3-mm central zone(Ks) was significantly decreased postoperatively(P=0.031). Keratometric value at the steepest corneal meridian for the 3-mm central zone(Kf) was increased postoperatively(P>0.05). Astigmatism of true net power was 1.21±0.56 D preoperatively and significantly decreased to 1.02±0.58 D postoperatively(P=0.021). On the anterior corneal surface, no significant difference in Ks and Kf was noted pre-versus postoperatively. Anterior corneal astigmatism was 1.08±0.51 D preoperativelyand significantly decreased to 0.87±0.46 D postoperatively(P=0.002). On the posterior corneal surface, Ks and Kf were significantly increased postoperatively(all P<0.05), and posterior corneal astigmatism also increased(P=0.008). The SIA values of true net power and the anterior and posterior corneal surfaces at 3 mo postoperatively were 1.26±0.63 D(range: 0.11 to 2.80 D), 1.05±0.54 D(range: 0.23 to 2.40 D), and 0.21±0.17 D(range: 0.01 to 0.07 D), respectively. CONCLUSION: One-handed phacoemulsification with steep-axis incision can effectively decrease astigmatism of tru

关键词： steep-axis one-handed phacoemulsification true net power surgically induced astigmatism

Local neuronal circuits that may shape the discharge patterns of inferior collicular neurons

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Neuroscience Bulletin 2013年第5期29卷 541-552页

作者： Zi-Ying Fu Hui-Xian Mei Liang Cheng Jing Bai Jia Tang Philip Hung-Sun Jen qi-cai Chen School of Life Sciences & Hubei Key Laboratory of Genetic Regulation and Integrative Biology Central China Normal University Division of Biological Sciences University of Missouri-Columbia

The discharge patterns of neurons in auditory centers encode information about ***,few studies have focused on the synaptic mechanisms underlying the shaping of discharge patterns using intracellular recording ***,we investigated the discharge patterns of inferior collicular（IC）neurons using intracellular recordings to further elucidate the mechanisms underlying the shaping of discharge *** in vivo intracellular recording conditions,recordings were obtained from 66 IC neurons in 18 healthy adult mice（Mus musculus,Km）under free *** of these neurons fired bursts of action potentials（APs）to auditory stimuli and the remaining eight just generated local responses such as excitatory（n=4）or inhibitory（n=4）postsynaptic *** on the APs and subthreshold responses,the discharge patterns were classified into seven types：phasic（24/58,41.4%）,phasic burst（8/58,13.8%）,pauser（4/58,6.9%）,phasic-pauser（1/58,1.7%）,chopper（2/58,3.4%）,primary-like tonic（14/58,24.1%）and sound-induced inhibitory（5/58,8.6%）.We concluded that（1）IC neurons exhibit at least seven distinct discharge patterns;（2）inhibition participates in shaping the discharge pattern of most IC neurons and plays a role in sculpting the pattern,except for the primary-like tonic pattern which was not shapedby inhibition;and（3）local neural circuits are the likely structural basis that shapes the discharge patterns of IC neurons and can be formed either in the IC or in lower-level auditory structures.

关键词： inferior collicular neuron discharge pattern synaptic mechanism local neuronal circuit in vivo intracellular recording