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Photonics Research 2021年第1期9卷 49-53页

作者： JIHO PARK HEONOH KIM han seb moon Department of Physics Pusan National UniversityGeumjeong-GuBusan 46241Republic of Korea

We report the demonstration of a second-order interference experiment by use of thermal light emitted from a warm atomic ensemble in two spatially separated unbalanced Michelson interferometers(UMIs).This novel multipath correlation interference with thermal light has been theoretically proposed by Tamma[New ***.18,032002(2016)].In our experiment,the bright thermal light used for second-order interference is superradiantly emitted via collective two-photon coherence in Doppler-broadened cascade-type 87 Rb *** to the long coherence time of the thermal light from the atomic ensemble,we observe its second-order interference in the two independent UMIs by means of time-resolved coincidence *** temporal waveforms of the interfering thermal light in the two spatially separated UMIs exhibit similarities with the temporal two-photon waveform of time–energy entangled photon pairs in Franson *** results can contribute toward a better understanding of the relation between first-and second-order interferences that are at the heart of photonics-based quantum information science.

关键词： ensemble thermal atomic

Hong–Ou–Mandel interference of two independent continuous-wave coherent photons

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Photonics Research 2020年第9期8卷 1491-1495页

作者： HEONOH KIM DANBI KIM JIHO PARK AND han seb moon Department of Physics Pusan National UniversityGeumjeong-GuBusan 46241South Korea

Interference between two completely independent photons lies at the heart of many photonic quantum information applications such as quantum repeaters,teleportation,and quantum key ***,we report the observation of Hong–Ou–Mandel(HOM)interference with two independent continuous-wave coherent light sources that are neither synchronized nor share any common *** prepare indistinguishable photons from two independent laser sources,we employ high-precision frequency-stabilization techniques using the 5 S1∕2(F=3)-5P1∕2(F'=3)transition line of 85 Rb *** successfully observe an HOM interference fringe with two independent continuous-wave coherent photons originating from either the frequency-locked or the frequency-modulated *** interference fringe involving two-photon beating is also observed when the frequency difference between the two interfering photons is beyond the spectral bandwidth of the individual coherent *** carry out further experiments to verify the robustness of the source preparation regardless of the separation distance between the two independent photon sources.

关键词： coherent photons quantum

Two-photon interference between continuous-wave coherent photons temporally separated by a day

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Photonics Research 2020年第3期8卷 338-342页

作者： DANBI KIM JIHO PARK TAEK JEONG HEONOH KIM han seb moon Department of Physics Pusan National UniversityGeumjeong-GuBusan 46241South Korea

An understanding of the phenomenon of light interference forms the kernel underlying the discovery of the nature of light from the viewpoints of both classical physics and quantum *** we report on two-photon interference with temporally separated continuous-wave coherent photons by using a temporal post-selection method with an arbitrary time *** the temporal separation of a day between the photons is considerably longer than the coherence time of the light source,we observe the Hong–Ou–Mandel(HOM)interference of the pairwise two-photon ***,we experimentally demonstrate the HOM interference observed in one of the interferometer-output modes by using only one single-photon detector for a large temporal separation.

关键词： separated coherent photon

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基于数据挖掘的紫癜性肾炎动物模型分析

中国实验动物学报 2024年第4期32卷 513-522页

作者：程齐丁樱徐闪闪代彦林韩姗姗黄欣河南中医药大学儿科医学院郑州450046 河南中医药大学第一附属医院儿童医院郑州450000

目的基于文献挖掘探讨紫癜性肾炎动物模型的造模特点,为制备规范化的紫癜性肾炎动物模型提供参考。方法通过计算机检索中国知网、万方、维普、中国生物医学文献数据库、PubMed中英文数据库中相关研究文献,获取近20年紫癜性肾炎动物实... 详细信息

目的基于文献挖掘探讨紫癜性肾炎动物模型的造模特点,为制备规范化的紫癜性肾炎动物模型提供参考。方法通过计算机检索中国知网、万方、维普、中国生物医学文献数据库、PubMed中英文数据库中相关研究文献,获取近20年紫癜性肾炎动物实验文献,将实验动物种类、造模方法、给药剂量、给药周期、成模标准及检测指标进行人工筛选,应用Microsoft Excel 2021软件建立数据库并进行统计分析,运用SPSS Modeler 18.0对高频指标进行关联规则分析并运用Cytoscape 3.6.1软件对关联网络图进行可视化升级。结果归纳总结符合纳入标准的106篇文献,建立紫癜性肾炎动物模型多选用SD大鼠和KM小鼠,造模方式多选用药源性诱导,造模药物以牛血清白蛋白(bovine serum albumin, BSA)+脂多糖(lipopolysaccharide, LPS)+四氯化碳(carbon tetrachloride, CCl_4)+蓖麻油、卵白蛋白(ovalbumin, OVA)+弗氏完全佐剂、麦胶蛋白+印度墨水、牛血清白蛋白+葡萄糖菌肠毒素B(staphylococcus enterotoxin B,seb)复刻紫癜性肾炎吻合度较高的动物模型,周期一般在5~14周,成模标准多选用皮肤紫癜,尿红细胞数增多,尿蛋白阳性,肾组织可见肾小球系膜增生及以免疫球蛋白A(immunoglobulin A,IgA)为主的免疫复合物沉积于小血管表示造模成功。检测指标共涉及36个医学指标,其中肾及尿液相关的检测指标23个,血液相关检测指标9个,其中使用频率≥10%的有24 h尿蛋白定量、白细胞介素、肾病理、尿红细胞计数、IgA及循环免疫复合物(circulation immune complex, CIC)、肌酐(creatinine, Cr)等10个指标,对高频指标进行聚类分析,结果表明多采用24 h尿蛋白定量-白细胞介素-肾病理-尿红细胞数-IgA综合评价模型。结论现有的紫癜性肾炎动物实验多选用SD雄性大鼠和KM雌性小鼠,造模方式多采用药源性诱导,其中瘀热证复合IgA肾病法(病证结合法)具有重复性强、成模率高的优点,可为HSPN动物实验模型选择提供参考。

关键词：紫癜性肾炎动物模型数据挖掘基础研究

Intellicise communication system: model-driven semantic communications

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The Journal of China Universities of Posts and Telecommunications 2022年第1期29卷 2-12页

作者： Zhang Ping Xu Xiaodong Dong Chen han Shujun Wang Bizhu State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing 100876China

As one of the critical technologies for the 6 th generation mobile communication system(6 G) mobile communication systems, artificial intelligence(AI) technology will provide complete automation for connecting the virtual and physical worlds. In order to construct the future ubiquitous intelligent network, people are beginning to rethink how mobile communication systems transmit and exploit intelligent information. This paper proposes a new communication paradigm, called the Intellicise communication system: model-driven semantic communication. Intellicise communication system is built on top of the traditional communication system and innovatively adds a new feature dimension on top of the traditional source coding, which enables the communication system to evolve from the traditional transmission of bit to the transmission of "model". Like the semantic base(seb) for semantic communication, the model is considered as the new feature obtained from the joint source-channel coding. The sink node can re-construct the original signal based on the received model and the encoded sequence. In addition, the performance evaluation metrics and the implementation details of the Intellicise communication system are discussed in this paper. Finally, preliminary results of model-driven image transmission in the Intellicise communication system are presented.

关键词： Intellicise communication system semantic communications model driven the 6th generation mobile communication system artificial intelligence

Single-event burnout hardening of planar power MOSFET with partially widened trench source

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Journal of Semiconductors 2018年第3期39卷 44-49页

作者： Jiang Lu Hainan Liu Xiaowu Cai Jiajun Luo Bo Li Binhong Li Lixin Wang Zhengsheng han Institute of Microelectronics of Chinese Academy of Sciences Beijing 100029China Key Laboratory of Silicon Device Technology Chinese Academy of SciencesBeijing 100029China University of Chinese Academy of Sciences Beijing 100029China

We present a single-event burnout（seb） hardened planar power MOSFET with partially widened trench sources by three-dimensional（3 D） numerical simulation. The advantage of the proposed structure is that the work of the parasitic bipolar transistor inherited in the power MOSFET is suppressed effectively due to the elimination of the most sensitive region（P-well region below the N＋ source）. The simulation result shows that the proposed structure can enhance the seb survivability significantly. The critical value of linear energy transfer（LET）,which indicates the maximum deposited energy on the device without seb behavior, increases from 0.06 to0.7 p C/μm. The seb threshold voltage increases to 120 V, which is 80% of the rated breakdown voltage. Meanwhile, the main parameter characteristics of the proposed structure remain similar with those of the conventional planar structure. Therefore, this structure offers a potential optimization path to planar power MOSFET with high seb survivability for space and atmospheric applications.

关键词： planar power MOSFETs single-event burnout(seb) parasitic bipolar transistor second breakdown voltage

栅场板型Ga_(2)O_(3)MOSFET器件单粒子烧毁仿真研究

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现代应用物理 2024年第3期15卷 120-131页

作者：刘涵勋汪柯佳曹荣幸韩丹王祖军曾祥华薛玉雄强脉冲辐射环境模拟与效应全国重点实验室西安710024 扬州大学电气与能源动力工程学院江苏扬州225127 扬州大学物理科学与技术学院江苏扬州225002

设计了1种抗单粒子烧毁(single event burnout,seb)效应能力较强的栅场板型结构Ga_(2)O_(3)MOSFET器件,并与平面型结构进行了对比,采用基于计算机辅助设计(technology computer aided design,TCAD)的商用半导体器件仿真模拟软件研究了2... 详细信息

设计了1种抗单粒子烧毁(single event burnout,seb)效应能力较强的栅场板型结构Ga_(2)O_(3)MOSFET器件,并与平面型结构进行了对比,采用基于计算机辅助设计(technology computer aided design,TCAD)的商用半导体器件仿真模拟软件研究了2款器件发生seb前后内部载流子浓度、电流密度等电学参数分布特性,深入研究了Ga_(2)O_(3)MOSFET器件发生seb的机理及引入栅场板结构后seb阈值电压增大的原因。在此基础上,对器件的结构进行优化,获得了抗seb性能较好的结构参数。研究结果表明:2款Ga_(2)O_(3)MOSFET器件发生seb的机理都是由于其内部难以实现p型掺杂,主要是电子导电,当器件处于关断状态时,栅极下方会形成耗尽区,而重离子入射碰撞离化产生的电子在耗尽区的积累会对衬底层中电子通道的开启具有显著影响。当器件发生seb时,源极的电子会通过V型的电子通道流向漏极,使得器件发生短路,产生大电流并烧毁;与平面型Ga_(2)O_(3)MOSFET器件相比,引入栅场板结构的器件在沟道区域的峰值电场强度由2.9 MV·cm^(-1)降低至1.7 MV·cm^(-1),从而降低了重离子入射器件后,碰撞离化产生载流子的速率,另一方面,引入栅场板结构也扩大了耗尽区的范围,使得栅极的控制能力增强,将器件发生seb的阈值电压从110 V提升至340 V;最后通过仿真优化SiO_(2)钝化层的厚度以及栅场板的长度,得到了抗seb能力更强的器件结构参数,进一步将器件seb阈值电压提升至380 V。

关键词： Ga_(2)O_(3)金属氧化物半导体场效应晶体管栅场板单粒子烧毁 TCAD仿真

Development of a Multiplex PCR for Diagnosis of Staphylococcus aureus, Escherichia coli and Bacillus cereus from Cows with Endometritis

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Agricultural Sciences in China 2011年第10期10卷 1624-1629页

作者： SUN Dong-bo WU Rui HE Xian-jing WANG Shuang LIN Yun-cheng han Xu WANG Yue-qiang GUOTing-ting WU Guo-jun YANG Ke-li College of Animal Science and Veterinary Medicine Heilongjiang Bayi Agricultural University Daqing 163319 P.R.China

Staphylococcus aureus, Escherichia coli and Bacillus cereus are the major agents of cow endometritis in dairy cows. A multiplex PCR （seb-mPCR） was established based on the conserved genes of S. aureus, E. coli and B. cereus, and the detection limits were 103, 102 and 103 CFU mL-1, respectively. seb-mPCR could not amplify genomic DNA of pathogenic bacteria of other common bovine diseases. A total of 309 vaginal discharge samples from cows with endometritis were tested by seb-mPCR. Of the samples, 23.95% had the three kinds of bacteria detected, 17.15% had S. aureu and E. coli, 9.39% had E. coli and B. cereus, and 9.71% had S. aureus and B. cereus. The rates of infections with S. aureus, E. coli and B. cereus were 11.35, 16.18 and 9.06%, respectively. Therefore, seb-mPCR has a potential as a diagnosis tool for endometritis in dairy cows.

关键词： bovine endometritis multiplex PCR S. aureus E. coli B. cereus

Effects of Total-Ionizing-Dose Irradiation on Single-Event Burnout for Commercial Enhancement-Mode AlGaN/GaN High-Electron Mobility Transistors

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Chinese Physics Letters 2020年第4期37卷 88-91页

作者： Si-Yuan Chen Xin Yu Wu Lu Shuai Yao Xiao-Long Li Xin Wang Mo-han Liu Shan-Xue Xi Li-Bin Wang Jing Sun Cheng-Fa He Qi Guo Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqi 830011 Xinjiang Key Laboratory of Electronic Information Material and Device Urumqi 830011 University of Chinese Academy of Sciences Beijing 100049

We investigate the synergism effect of total ionizing dose(TID)on single-event burnout(seb)for commercial enhancement-mode AlGaN/GaN high-electron mobility *** experimental results show that the slight degradation of devices caused by gamma rays can affect the stability of the devices during the impact of high energy *** heavy ion irradiation,the safe working values of drain voltage are significantly reduced for devices which have already been irradiated by 60Co gamma rays *** could be attributed to more charges trapped caused by 60Co gamma rays,which make GaN devices more vulnerable to ***,the electrical parameters of GaN devices after 60Co gamma and heavy-ion irradiations are presented,such as the output characteristic curve,effective threshold voltages,and leakage current of *** results demonstrate that the synergistic effect of TID on seb for GaN power devices does in fact exist.

关键词： AlGaN/GaN drain Electron

氮化镓基高电子迁移率晶体管单粒子和总剂量效应的实验研究

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物理学报 2021年第11期70卷 208-215页

作者：陈睿梁亚楠韩建伟王璇杨涵陈钱袁润杰马英起上官士鹏中国科学院国家空间科学中心北京100190 中国科学院大学北京100049

利用重离子加速器和^(60)Co γ射线实验装置,开展了p型栅和共栅共源级联结构增强型氮化镓基高电子迁移率晶体管的单粒子效应和总剂量效应实验研究,给出了氮化镓器件单粒子效应安全工作区域、总剂量效应敏感参数以及辐射响应规律.实验发... 详细信息

利用重离子加速器和^(60)Co γ射线实验装置,开展了p型栅和共栅共源级联结构增强型氮化镓基高电子迁移率晶体管的单粒子效应和总剂量效应实验研究,给出了氮化镓器件单粒子效应安全工作区域、总剂量效应敏感参数以及辐射响应规律.实验发现, p型栅结构氮化镓器件具有较好的抗单粒子和总剂量辐射能力,其单粒子烧毁阈值大于37 MeV·cm^(2)/mg,抗总剂量效应水平高于1 Mrad (Si),而共栅共源级联结构氮化镓器件则对单粒子和总剂量辐照均很敏感,在线性能量传输值为22 MeV·cm^(2)/mg的重离子和累积总剂量为200 krad (Si)辐照时,器件的性能和功能出现异常.利用金相显微镜成像技术和聚焦离子束扫描技术分析氮化镓器件内部电路结构,揭示了共栅共源级联结构氮化镓器件发生单粒子烧毁现象和对总剂量效应敏感的原因.结果表明,单粒子效应诱发内部耗尽型氮化镓器件的栅肖特基势垒发生电子隧穿可能是共栅共源级联结构氮化镓器件发生源漏大电流的内在机制.同时发现,金属氧化物半导体场效应晶体管是导致共栅共源级联结构氮化镓器件对总剂量效应敏感的可能原因.

关键词：单粒子烧毁效应总剂量效应重离子氮化镓高电子迁移率晶体管