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International Journal of Oral Science 2009年第4期1卷 217-223页

作者： Quan yu xiao-gang pan Guo-ping Ji Gang Shen Shanghai Key Laboratory of Stomatology Department of Orthodontics Shanghai Ninth People＇s Hospital Affiliated toShanghai Jiao Tong University School of Medicine Shanghai China

Aim To investigate the relationship between the positioning of the lower central incisor and physical morphology of the surrounding alveolar bone. Methodology Thirty-eight patients （18 males, 20 females）, with mean age of 13.4 years, were included in this study. As part of orthodontic treatment planning the patients were required to take dental Cone-beam CT （CBCT） covering the region of lower incisors, the sur- rounding alveolar bone and the mandibular symphysis. The cephalometric parameters were designed and measured to indicate the inclination of lower central incisor and physical morphology of the adjacent alveolar bone. Computer-aided descriptive statistical analysis was performed using SPSS 15.0 software package for Windows. A correlation analysis and a linear regression analysis between the incisor inclination and the alveolar bone morphology were performed. Results Significant positive correlations were found between the lower central incisor inclination and the morphological contour of the alveolar bone （P〈0.05）. The lower central incisor root apex was closer to the lingual alveolar crest when it was buccally inclined. Conclusion The morphology of the alveolar bone may be affected by incisal inclination.

关键词： Cone-beam CT (CBCT) alveolar bone incisorinclination

Acute abdomen caused by spontaneous rupture of degenerative hysteromyoma during pregnancy:A case report

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World Journal of Clinical Cases 2023年第15期11卷 3631-3636页

作者： Ying Xu Xi Shen xiao-yu pan Shan Gao Department of Obstetrics and Gynecology China-Japan Friendship HospitalBeijing 100000China

BACKGROUND Hysteromyoma is not a rare tumor among pregnant *** pregnancy,the symptoms caused by hysteromyoma can be improved through conservative treatment in most ***,in order to ensure the safety of mothers and children,surgeries are necessary in some special *** SUMMARY We report a case of pregnancy complicated with hysteromyoma red *** patient had peritonitis after sudden abdominal pain during the 20th week of *** exploration suggested rupture and bleeding of hysteromyoma,which were improved after drainage and an anti-inflammatory treatment.A cesarean section was performed after full *** case shows the complications of rupture after red degeneration of hysteromyoma during *** We should be alert to rupture of hysteromyoma during pregnancy,and active laparoscopic exploration is essential to improve the prognosis of such patients.

关键词： Leiomyoma degeneration Myoma rupture Acute abdomen Pregnancy Hysteromyoma bleeding Case report

Dependence of single event upsets sensitivity of low energy proton on test factors in 65 nm SRAM

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Chinese Physics B 2018年第7期27卷 566-571页

作者： Yin-Yong Luo Feng-Qi Zhang xiao-yu pan Hong-Xia Guo yuan-Ming Wang State Key Laboratory of Intense Pulsed Radiation Simulation and Effect Northwest Institute of Nuclear TechnologyXi＇an 710024China

In order to accurately predict the single event upsets （SEU） rate of on-orbit proton, the influence of the proton energy distribution, incident angle, supply voltage, and test pattern on the height, width, and position of SEU peak of low energy protons （LEP） in 65 nm static random access memory （SRAM） are quantitatively evaluated and analyzed based on LEP testing data and Monte Carlo simulation. The results show that different initial proton energies used to degrade the beam energy will bring about the difference in the energy distribution of average proton energy at the surface and sensitive region of the device under test （DUT）, which further leads to significant differences including the height of SEU peak and the threshold energy of SEU. Using the lowest initial proton energy is extremely important for SEU testing with low energy protons. The proton energy corresponding to the SEU peak shifts to higher average proton energies with the increase of the tilt angle, and the SEU peaks also increase significantly. The reduction of supply voltage lowers the critical charge of SEU, leading to the increase of LEP SEU cross section. For standard 6-transitor SRAM with bit-interleaving technology, SEU peak does not show clear dependence on three test patterns of logical checkerboard 55H, all＂ 1＂, and all ＂0＂. It should be noted that all the SEUs in 65 nm SRAM are single cell upset in LEP testing due to proton＇s low linear energy transfer （LET） value.

关键词： low energy proton energy distribution tilt angle supply voltage test pattern

Sensitivity of heavy-ion-induced single event burnout in SiC MOSFET

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Chinese Physics B 2022年第1期31卷 652-657页

作者： Hong Zhang Hong-Xia Guo Feng-Qi Zhang xiao-yu pan Yi-Tian Liu Zhao-Qiao Gu An-An Ju xiao-Ping Ouyang School of Material Science and Engineering Xiangtan UniversityXiangtan 411105China Northwest Institute of Nuclear Technology Xi'an 710024China

The energy deposition and electrothermal behavior of SiC metal-oxide-semiconductor field-effect transistor(MOSFET)under heavy ion radiation are investigated based on Monte Carlo method and TCAD numerical *** Monte Carlo simulation results show that the density of heavy ion-induced energy deposition is the largest in the center of the heavy ion *** time for energy deposition in SiC is on the order of *** TCAD is used to simulate the single event burnout(SEB)sensitivity of SiC MOSFET at four representative incident positions and four incident *** heavy ions strike vertically from SiC MOSFET source electrode,the SiC MOSFET has the shortest SEB time and the lowest SEB voltage with respect to direct strike from the epitaxial layer,strike from the channel,and strike from the body diode *** current and strong electric field simultaneously appear in the local area of SiC MOSFET,resulting in excessive power dissipation,further leading to excessive high lattice *** gate-source junction area and the substrate-epitaxial layer junction area are both the regions where the SiC lattice temperature first reaches the SEB critical *** the SEB simulation of SiC MOSFET at different incident depths,when the incident depth does not exceed the device's epitaxial layer,the heavy-ion-induced charge deposition is not enough to make lattice temperature reach the SEB critical temperature.

关键词： SiC MOSFET Monte Carlo method TCAD single event burnout lattice temperature

Impact of neutron-induced displacement damage on the single event latchup sensitivity of bulk CMOS SRAM

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Chinese Physics B 2017年第1期26卷 542-546页

作者： xiao-yu pan Hong-Xia Guo Yin-Hong Luo Feng-Qi Zhang Li-Li Ding Jia-Nan Wei Wen Zhao Northwest Institute of Nuclear Technology Xi＇an 710024 China

Since the displacement damage induced by the neutron irradiation prior has negligible impact on the performance of the bulk CMOS SRAM, we use the neutron irradiation to degrade the minority carrier lifetime in the regions responsible for latchup. With the experimental results, we discuss the impact of the neutron-induced displacement damage on the SEL sensitivity and qualitative analyze the effectiveness of this suppression approach with TCAD simulation.

关键词： displacement damage neutron irradiation single event latchup TCAD simulation

Synergistic effect of total ionizing dose on single event effect induced by pulsed laser microbeam on SiGe heterojunction bipolar transistor

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Chinese Physics B 2018年第10期27卷 612-621页

作者： Jin-Xin Zhang Hong-Xia Guo xiao-yu pan Qi Guo Feng-Qi Zhang Juan Feng Xin Wang Yin Wei Xian-Xiang Wu Xidian University Xi'an 710126 China Xinjiang Technical Institute of Physics & Chemistry Chinese Academy of Sciences Urumqi 830011 China Northwest Institution of Nuclear Technology Xi'an 710024 China

The synergistic effect of total ionizing dose（TID） on single event effect（SEE） in SiGe heterojunction bipolar transistor（HBT） is investigated in a series of experiments. The SiGe HBTs after being exposed to 60 Co g irradiation are struck by pulsed laser to simulate SEE. The SEE transient currents and collected charges of the un-irradiated device are compared with those of the devices which are irradiated at high and low dose rate with various biases. The results show that the SEE damage to un-irradiated device is more serious than that to irradiated SiGe HBT at a low applied voltage of laser test. In addition, the g irradiations at forward and all-grounded bias have an obvious influence on SEE in the SiGe HBT, but the synergistic effect after cutting off the g irradiation is not significant. The influence of positive oxide-trap charges induced by TID on the distortion of electric field in SEE is the major factor of the synergistic effect. Moreover, the recombination of interface traps also plays a role in charge collection.

关键词： SiGe HBT synergistic effect single event effects total ionizing dose

A Marked Increase in Obstetric Hysterectomy for Placenta Accreta

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Chinese Medical Journal 2015年第16期128卷 2189-2193页

作者： xiao-yu pan yu-Ping Wang Zheng Zheng Yan Tian Ying-Ying HU Su-Hui Han Department of Obstetrics and Gynecology China-Japan Friendship Hospital Beijing 100029 China Department of Ultrasound Diagnosis China-Japan Friendship Hospital Beijing 100029 China Department of Radiology China-Japan Friendship Hospital Beijing 100029 China

Background：Obstetric hysterectomy （OH） as a lifesaving measure to manage uncontrolled uterine hemorrhage appears to be increasing *** objective of this study was to determine the etiology and changing trends of OH and to identify those at particular risk of OH to enhance the early involvement of multidisciplinary intensive ***：A retrospective study was carried out in patients who had OH in China-Japan Friendship Hospital from 2004 to *** characteristics,preoperative evaluation,operative reports,and prenatal outcomes were studied in ***：There were 19 cases of OH among a total of 18,838 *** the study periods between 2004-2010 and 2011-2014,OH increased from 0.8/1000 （10/12,890） to 1.5/1000 （9/5948）.Indications for OH have changed significantly during this study period with uterine atony decreasing from 50.0% （5/10） to 11.1% （1/9）（P 〈 0.05）,and placenta accreta as the indication for OH has increased significantly from 20.0% （2/10） to 77.8% （7/9）（P 〈 0.05）.Ultrasonography and magnetic resonance imaging （MRI） have been used to make an exact antepartum diagnosis of placenta accreta.A multidisciplinary management led to improved outcomes for patients with placenta ***：As the multiple cesarean delivery rates have risen,there has been a dramatic increase in OH for placenta *** advance antenatal diagnosis of ultrasonography,and MRI,and a multidisciplinary teamwork can maximize patients＇ safety and outcome.

关键词： Cesarean Section Hysterectomy Placenta Accreta

Experimental study of dual nano-network, high-temperature resistant aerogel material as an integration of thermal management functions

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Journal of Energy Chemistry 2025年第1期100卷 157-170页

作者： yueyue xiao Tianke Mao Zun Zhao yuelei pan Heping Zhang Xudong Cheng State Key Laboratory of Fire Science University of Science and Technology of China

Thermal management system is highly desirable to guarantee the performance and thermal safety of lithium-ion batteries,but it reduces the energy density of battery modules and even is unable to provide highly effective ***,a thermal management function integrated material is presented based on high-temperature resistant aerogel and phase change material and is applied at both charge–discharge process and thermal runaway *** this sandwich structure Paraffin@SiC nanowire/Aerogel sheet （denoted as PA@SAS） system,SiC nanowires endow the middle aerogel sheet （SAS） a dual nano-network *** enhanced mechanical properties of SAS were studied by compressive tests and dynamic mechanical ***,the thermal conductivity of SAS at 600°C is only 0.042 W/（m K）.The surface phase change material layers facilitate temperature uniformity of batteries （surface temperature difference less than 1.82°C） through latent ***,a large-format battery module with four 58 Ah LiNi0.5Co0.2Mn0.3O2LIBs was ***@SAS successfully prevents thermal runaway propagation,yielding a temperature gap of 602°C through the 2 mm-thick cross ***@SAS also exhibits excellent performance in other safety issues such as temperature rise rate,flame heat flux,*** lightweight property and effective insulation performance achieves significant safety enhancement with mass and volume energy density reduction of only 0.79%and 5.4%,*** originality of the present research stems from the micro and macro structure design of the proposed thermal management material and the combination of intrinsic advantages of every *** work provides a reliable design of achieving the integration of thermal management functions into an aerogel composite and improves the thermal safety of lithium-ion batteries.

关键词： Thermal insulation

Broadband and perfect terahertz absorber based on multilayer metamaterial with cross-ring patterned structures

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Optoelectronics Letters 2025年第1期21卷 1-6页

作者： WEN Jin LIU Zhanzhi WU Zhengwei pan yu ZHANG Ying School of Science Xi'an Shiyou University Shaanxi Key Laboratory of Measurement and Control Technology for Oil and Gas Wells

Broadband and perfect terahertz absorber based on multilayer metamaterial using cross-ring patterned structures is proposed and investigated. The structure of the absorber is double absorption layers consisting of a chromium cross ring and eight isosceles right triangles. The unique structure of the double absorbing layers excites the electric dipole multimode resonance, giving rise to high absorption performance. Meanwhile, the influence of construal parameters on absorber behavior is also discussed. The numerical results show that the absorption achieves over 90% ranging from 2.45 THz to 6.25 THz and 99% absorption in the range of 3.7—5.3 THz. The realization of broadband and perfect absorber is described using the impedance matching principle. It is obviously found that the absorber is insensitive to the high angle of incidence for both transverse electric(TE) and transverse magnetic(TM) polarizations. Compared with the former reports, this absorber has remarkable improved absorption efficiency and smaller period. The terahertz absorber may be found applications in the fields of energy capture and thermal detection.

关键词： Metamaterials

COMPrompter: reconceptualized segment anything model with multiprompt network for camouflaged object detection

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Science China(Information Sciences) 2025年第1期68卷 189-203页

作者： xiaoqin ZHANG Zhenni yu Li ZHAO Deng-Ping FAN Guobao xiao Zhejiang Province Key Laboratory of Intelligent Informatics for Safety and Emergency Wenzhou University Nankai International Advanced Research Institute (SHENZHEN FUTIAN) College of Computer Science Nankai University School of Computer Science and Technology Tongji University

We rethink the segment anything model(SAM) and propose a novel multiprompt network called COMPrompter for camouflaged object detection(COD). SAM has zero-shot generalization ability beyond other models and can provide an ideal framework for COD. Our network aims to enhance the single prompt strategy in SAM to a multiprompt strategy. To achieve this, we propose an edge gradient extraction module, which generates a mask containing gradient information regarding the boundaries of camouflaged objects. This gradient mask is then used as a novel boundary prompt, enhancing the segmentation process. Thereafter, we design a box-boundary mutual guidance module, which fosters more precise and comprehensive feature extraction via mutual guidance between a boundary prompt and a box prompt. This collaboration enhances the model's ability to accurately detect camouflaged objects. Moreover, we employ the discrete wavelet transform to extract high-frequency features from image embeddings. The high-frequency features serve as a supplementary component to the multiprompt ***, our COMPrompter guides the network to achieve enhanced segmentation results, thereby advancing the development of SAM in terms of COD. Experimental results across COD benchmarks demonstrate that COMPrompter achieves a cutting-edge performance, surpassing the current leading model by an average positive metric of 2.2% in COD10K. In the specific application of COD, the experimental results in polyp segmentation show that our model is superior to top-tier methods as well. The code will be made available at https://***/guobaoxiao/COMPrompter.

关键词： segment anything model camouflaged object detection boundary prompt

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